Patent ID: 11923882
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. An operation method of a communication device including an electrode and an antenna, the operation method comprising:
determining any one of a first communication mode and a second communication mode as an operation mode of the communication device based on an amount of change from an initial value of a capacitance of the electrode;
receiving a communication signal based on the determined operation mode;
generating a first switch control signal and a second switch control signal based on the determined operation mode;
controlling a first switch circuit and a second switch circuit based on the first switch control signal and the second switch control signal;
transmitting the received communication signal to any one of a wireless communication signal processing circuit and an HBC signal processing circuit via the first switch circuit; and
processing the received communication signal;
wherein the determining of the operation mode includes:
measuring the capacitance of the electrode;
comparing the amount of change from the initial value of the measured capacitance with a threshold;
determining the first communication mode as the operation mode, when the amount of change is less than the threshold, and
determining the second communication mode as the operation mode, when the amount of change is greater than or equal to the threshold.