Patent ID: 6202188
Filing Date: 2001-03-13
Classification: H03M,H04L

Abstract:
A data transmission device comprising:a transmitter device for dividing a data string to be transmitted into an original data string requiring protection against code error and a data string requiring no protection, and for carrying out an error detection code adding operation and error correction coding at a redundancy code rate of 1/N on the original data to generate a coded data string, and for dividing the coded data string by N, and for multiplexing the N divided coded data strings and the data requiring no protection to generate a multiplexed data string, and for outputting the multiplexed data string on a communication line; anda receiver device for receiving the multiplexed data string through the communication line, and for dividing the multiplexed data string into the N divided coded data strings and the data string requiring no protection, and for carrying out error correction decoding and code error detection on the N divided coded data strings and a mixed coded data string obtained by mixing the divided coded data to generate a plurality of decoded data strings, and for selecting one of the decoded data strings from which no code error is detected, and for outputting the selected decoded data string together with the data string requiring no protection.