Patent ID: 7167110
Filing Date: 2007-01-23
Classification: H04L

Abstract:
1. A communication system including a transmitting apparatus and a receiving apparatus for transmitting and receiving signals over a transmission line, wherein said transmitting apparatus comprises: a binary to n-ary conversion unit for converting a binary transmit signal into an n-ary transmit sequence and a ternary information sequence, where n is an integer exceeding 1; an encoding unit for generating a ternary transmit sequence comprised of a nonbinary error correction code, based on said ternary information sequence; a transmit side parity generation unit for generating a parity for said ternary transmit sequence; and a modulator for modulating said n-ary transmit sequence, said ternary transmit sequence, and said parity generated by said parity generation unit into a 3n-ary signal to send the 3n-ary signal to said receiving apparatus; and wherein said receiving apparatus comprises: a demodulator for demodulating a 3n-ary received signal sent from said transmitting apparatus and received by said receiving apparatus to produce an n-ary received sequence, a ternary received sequence, and a received parity; a receive side parity generation unit for generating a parity for said ternary received sequence; a parity comparison unit for comparing said parity generated by said receive side parity generation unit with said received parity to determine a parity difference therebetween; a first decoding unit for decoding said ternary received sequence by using said parity difference and a method of decoding a nonbinary error correction code to produce a ternary decoded sequence; a second decoding unit for correcting said n-ary received sequence according to contents of correction of said ternary received sequence performed by said first decoding unit to produce an n-ary decoded sequence; and an n-ary to binary conversion unit for producing a binary received signal from said n-ary decoded sequence and said ternary decoded sequence.