Patent ID: 7962098

Claim:
A receiving apparatus, comprising: an antenna unit that is electrically connected in a detachable manner to a receiving apparatus main body, the antenna including: at least one receiving antenna that performs a radio communication with the capsule endoscope, the antenna unit transmitting the image data received via any one of the at least one receiving antenna to the receiving apparatus main body; and a storage unit that can store usage history information on a usage history of the receiving antenna in an updatable manner; and the receiving apparatus main body that receives via the antenna unit image data imaged by a capsule endoscope inserted in an interior of a subject, and accumulates the received image data, the receiving apparatus main body including: an input unit that receives an input of open-circuit detecting mode instruction information, a controller that detects the open-circuit detecting mode instruction information when the input unit receives the open-circuit detecting mode instruction information, and sets an operation mode to an open circuit detecting mode based on the detected open-circuit detecting mode instruction information, and a receiving unit that outputs a strength detection signal of each of the receiving antennas when the controller sets the open-circuit detecting mode as the operation mode.