Patent ID: 8265199

Claim:
A receiving circuit that receives input of an Alternate Mark Inversion-coded signal, converts the signal to a binary output signal, and outputs the same, the receiving circuit comprising: a first judging section configured to judge whether an input signal is greater or less than a first threshold on a positive side of the receiving circuit; a second judging section configured to judge whether an input signal is greater or less than a second threshold on a negative side of the receiving circuit; an output signal generating section configured to generate the output signal based on judgment results of the first judging section and the second judging section; a first hysteresis generating section configured to provide a hysteresis characteristic to the first threshold of the first judging section, the first hysteresis generating section including a first resistor connected between a positive input and output of the first judging section; and a second hysteresis generating section configured to provide a hysteresis characteristic to the second threshold of the second judging section, the second hysteresis generating section including a second resistor connected between a positive input and output of the second judging section.