SIGNAL PROCESSING APPARATUS, INFORMATION PROCESSING APPARATUS, MULTILEVEL CODING METHOD, AND DATA TRANSMISSION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a signal processing apparatus that can restrain an average amplitude value of a multilevel signal from significantly changing for each period.SOLUTION: There is provided a signal processing apparatus including: an encoder for encoding, according to respective specific coding schemes, a first bit string formed from bit values at odd-numbered positions and a second bit string formed from bit values at even-numbered positions that are obtained by alternately extracting bit values from bit strings that are expressed by mutually different first and second bit values, and generating first and second encoded signals that do not include a DC component; and a signal generation unit for generating a multilevel signal by respectively adding, to a clock signal having larger amplitude than the first and second encoded signals that are generated by the encoder, the first encoded signal in synchronization with a timing of the clock signal being at a positive amplitude value and the second encoded signal in synchronization with a timing of the clock signal being at a negative amplitude value.