Simultaneous transmission of clock and bidirectional data over a communication channel

A method comprising:

• transmitting a first set of data on a communication channel, including:
• encoding the first set of data, wherein the first set of signals is encoded with Return-to-Zero encoding, and
• driving the encoded signal on a communication channel and providing the encoded signal for echo cancellation;
• and
• receiving a clock signal and a second set of data on the same communication channel, including;
• receiving signals on the communication channel,
• detecting a first edge of the received signals to extract the clock signal;
• cancelling signal echo on the communication using the encoded signal, and
• detecting the second set of data in the received signals using the extracted clock signal, wherein the modulation of the second set of data includes a position of the second signal edge to encode a data value of second set of data;
• wherein the reception of the clock signal and the second set of data occurs simultaneously with the transmission of the first set of data.