Patent ID: 7844020

Claim:
A transmission system in which a data sequence is transmitted, comprising: a transmitter that generates a transmission signal by converting pieces of data included in the data sequence into a pulse waveform including a plurality of pulses each of which has (i) a level signal whose signal level is determined by a value of a corresponding one of the pieces of data and (ii) a timing edge indicating a timing to obtain the level signal and each of which varies from a reference level to the signal level at the timing edge and then goes back to the reference level from the signal level, and transmits the generated transmission signal; and a receiver including a plurality of level comparators that are provided in association with a plurality of data value candidates one of which is selected for each of the pieces of data included in the data sequence, each of the plurality of level comparators outputting a detection signal when the signal level is equal to or higher than a threshold value determined in accordance with an associated data value candidate, wherein the receiver detects the signal level of each of the plurality of pulses at a timing designated by the detection signal associated with a smallest data value candidate among the plurality of data value candidates, and outputs the data value corresponding to the detected signal level.