Signal transmission apparatus and signal transmission method

摘要

According to one embodiment, a signal transmission apparatus being AC-coupled with a receiving apparatus through a digital transmission line includes a transmitting module configured to transmit a differential signal based on an encoded bit serial input signal such that a low frequency component of the differential signal to be transmitted is maintained at a constant level when the differential signal based on the encoded bit serial input signal is transmitted to the digital transmission line where the encoded bit serial input signal includes a ratio of the number of logic 1 to the number of logic 0 which is different from 5:5.