Signal transmission system, transmitter encoding apparatus and receiver decoding apparatus

A signal transmission system, comprising:

• a transmitter encoding apparatus comprising:
• a multiplexer, configured to receive a first digital signal and a second digital signal and generate an output, wherein the output of the multiplexer comprises a plurality of M-bit code words of the first digital signal and a plurality of M-bit code words of the second digital signal, wherein the plurality of M-bit code words of the first digital signal and the plurality of M-bit code words of the second digital signal are arranged in an interleaved manner, and M is a positive integer;
• and
• a first transmitter encoder, configured to encode the output of the multiplexer to generate a plurality of N-bit code words, wherein N is a positive integer and N is not equal to M, wherein the first transmitter encoder is configured to determine a current N-bit code word of the plurality of N-bit code words according to the output of the multiplexer and a disparity of a previous N-bit code word of the plurality of N-bit code words;
• a receiver decoding apparatus, coupled to the transmitter encoding apparatus, comprising:
• a first receiver decoder, configured to decode the plurality of N-bit code words to generate a plurality of I-bit code words, wherein I is a positive integer and I is not equal to N;
• and
• a demultiplexer, configured to alternately deinterleave and assign the plurality of I-bit code words to a plurality of output terminals of the demultiplexer;
• a second transmitter encoder, configured to output a third digital signal and a fourth digital signal, wherein a plurality of K-bit code words of the third digital signal and the plurality of K-bit code words of the fourth digital signal both have substantially identical numbers of ones and zeros, K is a positive integer, and K is not equal to M;
• and
• a first transmitter decoder, configured to decode the third digital signal and the fourth digital signal to generate the first digital signal and the second digital signal, respectively.