Patent ID: 6279139
Filing Date: 2001-08-21
Classification: H04L

Abstract:
A transmission system, comprising:a master communication device for transmitting first main data and a first parity bit, and for receiving second main data and a second parity bit;a slave communication device for receiving said first main data and said first parity bit from said master communication device, and for transmitting said second main data and second parity bit to said master communication device;a first operation circuit installed in said master communication device, for generating said first parity bit from a first data constellation including each bit of said first main data;a second operation circuit installed in said slave communication device for performing a parity check using said first main data and said first parity bit, both of which are received by said slave communication device from said master communication device, and for outputting a first parity check bit which indicates a result of said first parity check;a third operation circuit installed in said slave communication device and receiving said first parity check bit from said second operation circuit, said third operation circuit generating said second parity bit from a second data constellation including said first parity check bit and each bit of said second main data; anda fourth operation circuit installed in said master communication device performing a second parity check using said second main data and said second parity bit, and for outputting a second parity check, bit based on said second parity check, wherein said master communication device can detect an error in transmission of one of said first main data and said second man data based on the result of said second parity check.