he computer control and Analog/Digital conversion technology is applied to the tube expanding equipment. The course of operation is controlled and managed by a microprocessor and the set, adjustment and display of the torque and the control of expanding force are all digitized, facilitation light operation through senses.
![Expander 符号生成行列、パリティ検査行列、Tanner グラフ expander 符号 expander グラフ [Sipser-Spieleman ‘96] expander 符号の構成 bit-flipping 復号法](https://static.documents.pub/doc/80x56/5f0bdbc37e708231d4328ff6/expander-c-ceoefffoeeoetanner-ff-expander.jpg)
