A A SEMINAR ONSEMINAR ON

Presented by pramoda ranjan sahoo Roll no-4MCA09

Introduction

Brief history

What is bluetooth

What disadvantage it overcome

Aim of bluetooth

How bluetooth technology works

Bluetooth technology benefits

Competing technologies

Conclusion

introductionintroduction

Bluetooth is the name of a new technology that is now becoming commercially available it promise to change significantly the way we use machines Bluetooth is a global defact standard for wireless connectivity Based on a low- cost short-range radio link Bluetooth cuts the cords that used to tie up digital devicesbluetooh technology allows for replacement of the many proprietarycables that connect one device to another with one universal short-range radio link

Bluetooth HistoryBluetooth History

bull Began as a private development effort at Ericssion in 1994

bull 5 companies joined to form the Bluetooth Special interest Group (SIG) in 1998

bull First Specification released in july 1999bull Current specification is version 11

What does Bluetooth do for usWhat does Bluetooth do for us

Personal Ad-hoc Personal Ad-hoc ConnectivityConnectivity

Cable Cable ReplacementReplacement

Landline

DataVoice DataVoice Access PointsAccess Points

Bluetooth is the name of a wireless technology standard for connecting devices set to replace cables It uses radio frequencies in the 245 GHz range to transmit information over short distances of generally 33 feet (10 meters) or less By embedding a Bluetooth chip and receiver into products cables that would normally carry the signal can be eliminated

WHAT IS BLUETOOTH

WHAT DISADVANTAGE IT OVERCOMEWHAT DISADVANTAGE IT OVERCOME-- One wireless standard that is already familiar to many is IrDA or infrared Infrared uses pulses of non-visible light to communicate between two devices such as a remote control to a television or DVD player

One drawback of IrDA is that there must be a clear line of sight between the two devices and the other disadvantage is that IrDA normally only operates between two devices at a time An infrared remote control unit cannot communicate with the DVD player while it is signaling the TV

Bluetooth overcomes these limitations by using radio waves to send information in packet bursts The bursts can be sent to any device within lsquoearshotrsquo allowing communication with several devices at once

bull Bluetooth devices in the house are always communicating with one another as long as they are powered on Each device sends out a signal received by the other devices that are sending out their own signals The devices scan all signals to see if any are addressing it In this way Bluetooth creates a personal-area network (PAN) in the home and the user is not required to do anything special to get the devices to speak to one another They operate in a perpetual interactive mode by default

bullFor example letrsquos assume you are using your cell phone and headset while you copy a DVD from your entertainment center to your desktop -- meanwhile your digital camera is offloading its contents to your laptop The Bluetooth devices that have business with one another will initiate their own separate PAN (also called a piconet) and synchronize a random hopping scheme to create interference-free communications Known as spread-spectrum frequency hopping

bull The devices will jump among 79 random frequencies within a specified range changing about 1600 times per second in perfect unison The likelihood that a device in another PAN will be using the same frequency at the same time is minute Hence several individual PANs or piconets can operate in the house without interfering with one another Each piconet can have 1 master and up to 7 slave devices Future versions may allow linked piconets called scatter nets

The maximum bandwidth for any single channel or frequency is 1 megabyte per second (1Mbps) while individual packets range up to 2745 bits There are currently three flavors or classifications of Bluetooth devices relative to transmitting range As the range is increased the signal used in the respective classification is also stronger Note that Class 3devices are comparatively rare

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

Introduction

Brief history

What is bluetooth

What disadvantage it overcome

Aim of bluetooth

How bluetooth technology works

Bluetooth technology benefits

Competing technologies

Conclusion

introductionintroduction

Bluetooth is the name of a new technology that is now becoming commercially available it promise to change significantly the way we use machines Bluetooth is a global defact standard for wireless connectivity Based on a low- cost short-range radio link Bluetooth cuts the cords that used to tie up digital devicesbluetooh technology allows for replacement of the many proprietarycables that connect one device to another with one universal short-range radio link

Bluetooth HistoryBluetooth History

bull Began as a private development effort at Ericssion in 1994

bull 5 companies joined to form the Bluetooth Special interest Group (SIG) in 1998

bull First Specification released in july 1999bull Current specification is version 11

What does Bluetooth do for usWhat does Bluetooth do for us

Personal Ad-hoc Personal Ad-hoc ConnectivityConnectivity

Cable Cable ReplacementReplacement

Landline

DataVoice DataVoice Access PointsAccess Points

Bluetooth is the name of a wireless technology standard for connecting devices set to replace cables It uses radio frequencies in the 245 GHz range to transmit information over short distances of generally 33 feet (10 meters) or less By embedding a Bluetooth chip and receiver into products cables that would normally carry the signal can be eliminated

WHAT IS BLUETOOTH

WHAT DISADVANTAGE IT OVERCOMEWHAT DISADVANTAGE IT OVERCOME-- One wireless standard that is already familiar to many is IrDA or infrared Infrared uses pulses of non-visible light to communicate between two devices such as a remote control to a television or DVD player

One drawback of IrDA is that there must be a clear line of sight between the two devices and the other disadvantage is that IrDA normally only operates between two devices at a time An infrared remote control unit cannot communicate with the DVD player while it is signaling the TV

Bluetooth overcomes these limitations by using radio waves to send information in packet bursts The bursts can be sent to any device within lsquoearshotrsquo allowing communication with several devices at once

bull Bluetooth devices in the house are always communicating with one another as long as they are powered on Each device sends out a signal received by the other devices that are sending out their own signals The devices scan all signals to see if any are addressing it In this way Bluetooth creates a personal-area network (PAN) in the home and the user is not required to do anything special to get the devices to speak to one another They operate in a perpetual interactive mode by default

bullFor example letrsquos assume you are using your cell phone and headset while you copy a DVD from your entertainment center to your desktop -- meanwhile your digital camera is offloading its contents to your laptop The Bluetooth devices that have business with one another will initiate their own separate PAN (also called a piconet) and synchronize a random hopping scheme to create interference-free communications Known as spread-spectrum frequency hopping

bull The devices will jump among 79 random frequencies within a specified range changing about 1600 times per second in perfect unison The likelihood that a device in another PAN will be using the same frequency at the same time is minute Hence several individual PANs or piconets can operate in the house without interfering with one another Each piconet can have 1 master and up to 7 slave devices Future versions may allow linked piconets called scatter nets

The maximum bandwidth for any single channel or frequency is 1 megabyte per second (1Mbps) while individual packets range up to 2745 bits There are currently three flavors or classifications of Bluetooth devices relative to transmitting range As the range is increased the signal used in the respective classification is also stronger Note that Class 3devices are comparatively rare

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

introductionintroduction

Bluetooth is the name of a new technology that is now becoming commercially available it promise to change significantly the way we use machines Bluetooth is a global defact standard for wireless connectivity Based on a low- cost short-range radio link Bluetooth cuts the cords that used to tie up digital devicesbluetooh technology allows for replacement of the many proprietarycables that connect one device to another with one universal short-range radio link

Bluetooth HistoryBluetooth History

bull Began as a private development effort at Ericssion in 1994

bull 5 companies joined to form the Bluetooth Special interest Group (SIG) in 1998

bull First Specification released in july 1999bull Current specification is version 11

What does Bluetooth do for usWhat does Bluetooth do for us

Personal Ad-hoc Personal Ad-hoc ConnectivityConnectivity

Cable Cable ReplacementReplacement

Landline

DataVoice DataVoice Access PointsAccess Points

Bluetooth is the name of a wireless technology standard for connecting devices set to replace cables It uses radio frequencies in the 245 GHz range to transmit information over short distances of generally 33 feet (10 meters) or less By embedding a Bluetooth chip and receiver into products cables that would normally carry the signal can be eliminated

WHAT IS BLUETOOTH

WHAT DISADVANTAGE IT OVERCOMEWHAT DISADVANTAGE IT OVERCOME-- One wireless standard that is already familiar to many is IrDA or infrared Infrared uses pulses of non-visible light to communicate between two devices such as a remote control to a television or DVD player

One drawback of IrDA is that there must be a clear line of sight between the two devices and the other disadvantage is that IrDA normally only operates between two devices at a time An infrared remote control unit cannot communicate with the DVD player while it is signaling the TV

Bluetooth overcomes these limitations by using radio waves to send information in packet bursts The bursts can be sent to any device within lsquoearshotrsquo allowing communication with several devices at once

bull Bluetooth devices in the house are always communicating with one another as long as they are powered on Each device sends out a signal received by the other devices that are sending out their own signals The devices scan all signals to see if any are addressing it In this way Bluetooth creates a personal-area network (PAN) in the home and the user is not required to do anything special to get the devices to speak to one another They operate in a perpetual interactive mode by default

bullFor example letrsquos assume you are using your cell phone and headset while you copy a DVD from your entertainment center to your desktop -- meanwhile your digital camera is offloading its contents to your laptop The Bluetooth devices that have business with one another will initiate their own separate PAN (also called a piconet) and synchronize a random hopping scheme to create interference-free communications Known as spread-spectrum frequency hopping

bull The devices will jump among 79 random frequencies within a specified range changing about 1600 times per second in perfect unison The likelihood that a device in another PAN will be using the same frequency at the same time is minute Hence several individual PANs or piconets can operate in the house without interfering with one another Each piconet can have 1 master and up to 7 slave devices Future versions may allow linked piconets called scatter nets

The maximum bandwidth for any single channel or frequency is 1 megabyte per second (1Mbps) while individual packets range up to 2745 bits There are currently three flavors or classifications of Bluetooth devices relative to transmitting range As the range is increased the signal used in the respective classification is also stronger Note that Class 3devices are comparatively rare

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

Bluetooth HistoryBluetooth History

bull Began as a private development effort at Ericssion in 1994

bull 5 companies joined to form the Bluetooth Special interest Group (SIG) in 1998

bull First Specification released in july 1999bull Current specification is version 11

What does Bluetooth do for usWhat does Bluetooth do for us

Personal Ad-hoc Personal Ad-hoc ConnectivityConnectivity

Cable Cable ReplacementReplacement

Landline

DataVoice DataVoice Access PointsAccess Points

Bluetooth is the name of a wireless technology standard for connecting devices set to replace cables It uses radio frequencies in the 245 GHz range to transmit information over short distances of generally 33 feet (10 meters) or less By embedding a Bluetooth chip and receiver into products cables that would normally carry the signal can be eliminated

WHAT IS BLUETOOTH

WHAT DISADVANTAGE IT OVERCOMEWHAT DISADVANTAGE IT OVERCOME-- One wireless standard that is already familiar to many is IrDA or infrared Infrared uses pulses of non-visible light to communicate between two devices such as a remote control to a television or DVD player

One drawback of IrDA is that there must be a clear line of sight between the two devices and the other disadvantage is that IrDA normally only operates between two devices at a time An infrared remote control unit cannot communicate with the DVD player while it is signaling the TV

Bluetooth overcomes these limitations by using radio waves to send information in packet bursts The bursts can be sent to any device within lsquoearshotrsquo allowing communication with several devices at once

bull Bluetooth devices in the house are always communicating with one another as long as they are powered on Each device sends out a signal received by the other devices that are sending out their own signals The devices scan all signals to see if any are addressing it In this way Bluetooth creates a personal-area network (PAN) in the home and the user is not required to do anything special to get the devices to speak to one another They operate in a perpetual interactive mode by default

bullFor example letrsquos assume you are using your cell phone and headset while you copy a DVD from your entertainment center to your desktop -- meanwhile your digital camera is offloading its contents to your laptop The Bluetooth devices that have business with one another will initiate their own separate PAN (also called a piconet) and synchronize a random hopping scheme to create interference-free communications Known as spread-spectrum frequency hopping

bull The devices will jump among 79 random frequencies within a specified range changing about 1600 times per second in perfect unison The likelihood that a device in another PAN will be using the same frequency at the same time is minute Hence several individual PANs or piconets can operate in the house without interfering with one another Each piconet can have 1 master and up to 7 slave devices Future versions may allow linked piconets called scatter nets

The maximum bandwidth for any single channel or frequency is 1 megabyte per second (1Mbps) while individual packets range up to 2745 bits There are currently three flavors or classifications of Bluetooth devices relative to transmitting range As the range is increased the signal used in the respective classification is also stronger Note that Class 3devices are comparatively rare

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

What does Bluetooth do for usWhat does Bluetooth do for us

Personal Ad-hoc Personal Ad-hoc ConnectivityConnectivity

Cable Cable ReplacementReplacement

Landline

DataVoice DataVoice Access PointsAccess Points

Bluetooth is the name of a wireless technology standard for connecting devices set to replace cables It uses radio frequencies in the 245 GHz range to transmit information over short distances of generally 33 feet (10 meters) or less By embedding a Bluetooth chip and receiver into products cables that would normally carry the signal can be eliminated

WHAT IS BLUETOOTH

WHAT DISADVANTAGE IT OVERCOMEWHAT DISADVANTAGE IT OVERCOME-- One wireless standard that is already familiar to many is IrDA or infrared Infrared uses pulses of non-visible light to communicate between two devices such as a remote control to a television or DVD player

One drawback of IrDA is that there must be a clear line of sight between the two devices and the other disadvantage is that IrDA normally only operates between two devices at a time An infrared remote control unit cannot communicate with the DVD player while it is signaling the TV

Bluetooth overcomes these limitations by using radio waves to send information in packet bursts The bursts can be sent to any device within lsquoearshotrsquo allowing communication with several devices at once

bull Bluetooth devices in the house are always communicating with one another as long as they are powered on Each device sends out a signal received by the other devices that are sending out their own signals The devices scan all signals to see if any are addressing it In this way Bluetooth creates a personal-area network (PAN) in the home and the user is not required to do anything special to get the devices to speak to one another They operate in a perpetual interactive mode by default

bullFor example letrsquos assume you are using your cell phone and headset while you copy a DVD from your entertainment center to your desktop -- meanwhile your digital camera is offloading its contents to your laptop The Bluetooth devices that have business with one another will initiate their own separate PAN (also called a piconet) and synchronize a random hopping scheme to create interference-free communications Known as spread-spectrum frequency hopping

bull The devices will jump among 79 random frequencies within a specified range changing about 1600 times per second in perfect unison The likelihood that a device in another PAN will be using the same frequency at the same time is minute Hence several individual PANs or piconets can operate in the house without interfering with one another Each piconet can have 1 master and up to 7 slave devices Future versions may allow linked piconets called scatter nets

The maximum bandwidth for any single channel or frequency is 1 megabyte per second (1Mbps) while individual packets range up to 2745 bits There are currently three flavors or classifications of Bluetooth devices relative to transmitting range As the range is increased the signal used in the respective classification is also stronger Note that Class 3devices are comparatively rare

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

Bluetooth is the name of a wireless technology standard for connecting devices set to replace cables It uses radio frequencies in the 245 GHz range to transmit information over short distances of generally 33 feet (10 meters) or less By embedding a Bluetooth chip and receiver into products cables that would normally carry the signal can be eliminated

WHAT IS BLUETOOTH

WHAT DISADVANTAGE IT OVERCOMEWHAT DISADVANTAGE IT OVERCOME-- One wireless standard that is already familiar to many is IrDA or infrared Infrared uses pulses of non-visible light to communicate between two devices such as a remote control to a television or DVD player

One drawback of IrDA is that there must be a clear line of sight between the two devices and the other disadvantage is that IrDA normally only operates between two devices at a time An infrared remote control unit cannot communicate with the DVD player while it is signaling the TV

Bluetooth overcomes these limitations by using radio waves to send information in packet bursts The bursts can be sent to any device within lsquoearshotrsquo allowing communication with several devices at once

bull Bluetooth devices in the house are always communicating with one another as long as they are powered on Each device sends out a signal received by the other devices that are sending out their own signals The devices scan all signals to see if any are addressing it In this way Bluetooth creates a personal-area network (PAN) in the home and the user is not required to do anything special to get the devices to speak to one another They operate in a perpetual interactive mode by default

bullFor example letrsquos assume you are using your cell phone and headset while you copy a DVD from your entertainment center to your desktop -- meanwhile your digital camera is offloading its contents to your laptop The Bluetooth devices that have business with one another will initiate their own separate PAN (also called a piconet) and synchronize a random hopping scheme to create interference-free communications Known as spread-spectrum frequency hopping

bull The devices will jump among 79 random frequencies within a specified range changing about 1600 times per second in perfect unison The likelihood that a device in another PAN will be using the same frequency at the same time is minute Hence several individual PANs or piconets can operate in the house without interfering with one another Each piconet can have 1 master and up to 7 slave devices Future versions may allow linked piconets called scatter nets

The maximum bandwidth for any single channel or frequency is 1 megabyte per second (1Mbps) while individual packets range up to 2745 bits There are currently three flavors or classifications of Bluetooth devices relative to transmitting range As the range is increased the signal used in the respective classification is also stronger Note that Class 3devices are comparatively rare

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

WHAT DISADVANTAGE IT OVERCOMEWHAT DISADVANTAGE IT OVERCOME-- One wireless standard that is already familiar to many is IrDA or infrared Infrared uses pulses of non-visible light to communicate between two devices such as a remote control to a television or DVD player

One drawback of IrDA is that there must be a clear line of sight between the two devices and the other disadvantage is that IrDA normally only operates between two devices at a time An infrared remote control unit cannot communicate with the DVD player while it is signaling the TV

Bluetooth overcomes these limitations by using radio waves to send information in packet bursts The bursts can be sent to any device within lsquoearshotrsquo allowing communication with several devices at once

bull Bluetooth devices in the house are always communicating with one another as long as they are powered on Each device sends out a signal received by the other devices that are sending out their own signals The devices scan all signals to see if any are addressing it In this way Bluetooth creates a personal-area network (PAN) in the home and the user is not required to do anything special to get the devices to speak to one another They operate in a perpetual interactive mode by default

bullFor example letrsquos assume you are using your cell phone and headset while you copy a DVD from your entertainment center to your desktop -- meanwhile your digital camera is offloading its contents to your laptop The Bluetooth devices that have business with one another will initiate their own separate PAN (also called a piconet) and synchronize a random hopping scheme to create interference-free communications Known as spread-spectrum frequency hopping

bull The devices will jump among 79 random frequencies within a specified range changing about 1600 times per second in perfect unison The likelihood that a device in another PAN will be using the same frequency at the same time is minute Hence several individual PANs or piconets can operate in the house without interfering with one another Each piconet can have 1 master and up to 7 slave devices Future versions may allow linked piconets called scatter nets

The maximum bandwidth for any single channel or frequency is 1 megabyte per second (1Mbps) while individual packets range up to 2745 bits There are currently three flavors or classifications of Bluetooth devices relative to transmitting range As the range is increased the signal used in the respective classification is also stronger Note that Class 3devices are comparatively rare

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

bull Bluetooth devices in the house are always communicating with one another as long as they are powered on Each device sends out a signal received by the other devices that are sending out their own signals The devices scan all signals to see if any are addressing it In this way Bluetooth creates a personal-area network (PAN) in the home and the user is not required to do anything special to get the devices to speak to one another They operate in a perpetual interactive mode by default

bullFor example letrsquos assume you are using your cell phone and headset while you copy a DVD from your entertainment center to your desktop -- meanwhile your digital camera is offloading its contents to your laptop The Bluetooth devices that have business with one another will initiate their own separate PAN (also called a piconet) and synchronize a random hopping scheme to create interference-free communications Known as spread-spectrum frequency hopping

bull The devices will jump among 79 random frequencies within a specified range changing about 1600 times per second in perfect unison The likelihood that a device in another PAN will be using the same frequency at the same time is minute Hence several individual PANs or piconets can operate in the house without interfering with one another Each piconet can have 1 master and up to 7 slave devices Future versions may allow linked piconets called scatter nets

The maximum bandwidth for any single channel or frequency is 1 megabyte per second (1Mbps) while individual packets range up to 2745 bits There are currently three flavors or classifications of Bluetooth devices relative to transmitting range As the range is increased the signal used in the respective classification is also stronger Note that Class 3devices are comparatively rare

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

bull The devices will jump among 79 random frequencies within a specified range changing about 1600 times per second in perfect unison The likelihood that a device in another PAN will be using the same frequency at the same time is minute Hence several individual PANs or piconets can operate in the house without interfering with one another Each piconet can have 1 master and up to 7 slave devices Future versions may allow linked piconets called scatter nets

The maximum bandwidth for any single channel or frequency is 1 megabyte per second (1Mbps) while individual packets range up to 2745 bits There are currently three flavors or classifications of Bluetooth devices relative to transmitting range As the range is increased the signal used in the respective classification is also stronger Note that Class 3devices are comparatively rare

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

A collection of devices connected in an ad hoc fashion

One unit will act as a master and the others as slaves for the duration of the piconet connectionMaster sets the clock and hopping patternEach piconet has a unique hopping patternID Each master can connect to 7 simultaneous or 200+ inactive (parked) slaves per piconet

M

SS

S

SB

P

P

M=MasterS=Slave

P=ParkedSB=Standby

What is a Piconet

Class Signal Strength Range

Class 1 1 mill watt Up to 33 feet (10 meters)

Class 2 10 mill watts Up to 33 feet (10 meters)

Class 3 100 mill watts Up to 328 feet (100 meters)

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

CharacteristicsCharacteristicsOperates in the 24 GHz band at a data rate of 720Kbs

Uses Frequency Hopping (FH) spread spectrum which divides the frequency band into a number of channels (2402 - 2480 GHz yielding 79 channels)

Radio transceivers hop from one channel to another in a pseudo-random fashion determined by the master

Supports up to 8 devices in a piconet (1 master and 7 slaves)

Piconets can combine to form scatternets

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

bull Optimizes the usage model of all mobile computing and communications devices and provides

bull Global usage

bull Voice and data handling

bull Withstand interference from other sources

bull Low power consumption

bull Competitively low cost of units

bull Very small in size and Ergonomic design

Aim of Bluetooth

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

1048698 Open Specification

1048698 Voice and Data Capability

1048698 Worldwide Usability

1048698 Short-Range Wireless Solutions

Bluetooth Goals

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

Bluetooth Technology Benefits

Globally Accepted Specification

Range of Devices

Ease of Use

Globally Accepted Specification

Secure Connections

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

How Bluetooth Technology Works

Bluetooth is a high-speed low-power microwave wireless link technology designed to connect phones laptops PDAs and other portable equipment together with little or no work by the user

Unlike infra-red Bluetooth does not require line-of-sight positioning of connected units

The technology uses modifications of existing wireless LAN techniques but is most notable for its small size and low cost

The current prototype circuits are contained on a circuit board 09cm square with a much smaller single chip version in development The cost of the device is expected to fall very fast from $20 initially to $5 in a year or two

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

When one Bluetooth product comes within range of another (this can be set to between 10cm and 100m) they automatically exchange address and capability detailsThe protocols will handle both voice and data with a very flexible network topography

This technology achieves its goal by embedding tiny inexpensive short-range transceivers into the electronic devices that are available today The radio operates on the globally-available unlicensed radio band 245 GHz and supports data speeds of up to 721 Kbps as well as three voice channels

For instance in a PC they can be built in as a PC card or externally attached via the USB port

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

Each device has a unique 48-bit address from the IEEE 802 standard Connections can be point-to-point or multipoint The maximum range is 10 meters but can be extended to 100 meters by increasing the power Bluetooth devices are protected from radio interference by changing their frequencies arbitrarily upto a maximum of 1600 times a second

The Bluetooth specification targets power consumption of the device from a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps (or less than 110th of a watt) The radio chip consumers only 03mA in standby mode which is less than 3 of the power used by a standard mobile phone The chips also have excellent power-saving features as they will automatically shift to a low-power mode as soon as traffic volume lessens or stopsBluetooth devices are classified according to three different power classes as shown in the following table

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

Power Class Maximum Output Power

1 100 mW (20 dBm)

2 25 mW (4 dBm)

3 1 mW (0 dBm)

The Bluetooth radio transmissions will conform to the safety standards required by the countries where the technology will be used with respect to the affects of radio transmissions on the human body Emissions from Bluetooth enabled devices will be no greater than emissions from industry-standard cordless phones The Bluetooth module will not interfere or cause harm to public or private telecommunications network

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

bull Besides Bluetooth many other technologies exist like IrDA Home RF (SWAP) that provide similar or related services A quick glance into their scope and properties would help putting all of these into perspective Lets look at the features of Bluetooth first (for the sake of comparison)

bull Operates in the 256 GHZ ISM band which is globally available

bull Uses FHSS bull Can support up to 8 devices in a piconet Omni-directional non line of sight transmission through

walls bull 10m to 100m range bull Low cost $20 bull 1mW powerbull Extended range with external power amplifier (100

meters)

Competing Technologies

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

Peak Data

Rate Range

Relative Cost

Voice network support

Data network support

IEEE80211

2 Mbps 50m Medium Via IP TCP IP

IrDA 16 Mbps lt 2m Low Via IP Via PPP

Bluetooth 1 Mbps lt 10m Medium Via IP and cellular

Via PPP

HomeRF 16 Mbps 50m Medium Via IP and

PSTNTCP IP

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology

CONCLUSION

As you can see the Bluetooth specification is definitely real and is being widely adopted by industry leaders The possibilities for new applications is very exciting with this versatile technology