Patent ID: 11909431
Assignee: INDUSTRY ACADEMIC COOPERATION FOUNDATION CHOSUN UNIVERSITY
Field: Medical technology (Instruments)
Classification: CPC H  A | IPC A  H

Claim 4:
5. A capsule-type endoscope capable of two-way communication, comprising:
an RFID receiving antenna receiving an RFID signal;
a first matching circuit for impedance matching with the RFID receiving antenna;
a human body communication electrode comprised of a ground electrode and a signal electrode transmitting a signal for human body communication;
a second matching circuit for impedance matching with the human body communication electrode,
wherein the RFID receiving antenna and the signal electrode are provided as a single integrated electrode, and
the capsule-type endoscope further comprises:
a third switch selectively connecting the integrated electrode to one of the first matching circuit and the second matching circuit; and
a fourth switch opening and closing a connection between the ground electrode and the second matching circuit,
wherein when the RFID signal is received, the third switch connects the integrated electrode to the first matching circuit, and the fourth switch opens the connection between the ground electrode and the second matching circuit; and
when the human body communication signal is transmitted, the third switch connects the integrated electrode to the second matching circuit, and the fourth switch connects the ground electrode and the second matching circuit.