Telemetry Transmission to Support Bidirectional Communication for Capsule Endoscope Using Human Body Communication

This letter proposes telemetry transmission for a capsule endoscope using human body communication. A passive-type radio frequency identification technique is used to transmit a telemetry signal at 13.56 MHz from the outside of a human body to a capsule endoscope. Due to passive-type telemetry receiving, no power is consumed inside the endoscope for telemetry transmission. Telemetry transmission allows bidirectional communication support for the capsule endoscopy.