Receiver for body channel communication and a method of operating a receiver therefrom

A method of controlling a receiver for body channel communication, comprising:

• receiving an incoming signal transmitted as a multi-level transmission signal from a transmitter through a body channel;
• obtaining a time derivative of the incoming signal;
• and
• generating a multi-level representation signal representing the multi-level transmission signal based on the time derivative,
• wherein the method further comprises generating a plurality of digital words by comparing each of the plurality of data transitions to a plurality of thresholds in generating the multi-level representation signal.

A system for body channel communication comprising:

• a transmitter comprising:
• a driver configured to generate a multi-level transmission signal comprising at least three signal levels;
• and a transmission electrode configured to transmit the multi-level transmission signal through a body channel, and
• a receiver comprising:
• an electrode configured to receive the multi-level transmission signal from the transmitter through the body channel;
• a differentiator configured to obtain a time derivative of the multi-level transmission signal;
• and
• an analog to digital converter configured to generate a multi-level representation signal representing the multi-level transmission signal based on the time derivative, wherein the analog to digital converter is a multi-level detector configured to generate a plurality of digital words by comparing each of the plurality of data transitions to a plurality of thresholds in generating the multi-level representation signal.