System and method for signal interference rejection using human body communication

A communication interference rejection system comprising:

• a receiver operatively connected to a device connected to a body of a user, the receiver configured to receive a signal transmitted through the body of the user, the signal comprising a data component and an interference component, said interference component due to human body antenna effect, said receiver configured to integrate the signal using a relatively high-gain analog integrator wherein the output of said integrator saturates to a rail-to-rail voltage to allow the receiver to decode the signal received from said integrator using a serial protocol, wherein the digital differentiator compares the difference between two consecutive samples output by the analog to digital converter.