Low Power Wearable Audio Player Using Human Body Communications

This paper presents a prototype wearable audio player system to playback the digital audio signal transmitted through the wearer´s body without any wire. To significantly reduce the power consumption of the digital audio transmission, the system exploits a novel wideband signaling human body communication scheme. The transceiver chip designed, fabricated, and assembled on the prototype system shows 5-mW power consumption at 2-Mb/s data rate, better than the Bluetooth transceiver. Real-time audio playing through the human body is successfully demonstrated.