Receiving apparatus

• Main Authors: Homan, Masatoshi, Nagase, Ayako, Kimoto, Seiichiro, Nakatsuchi, Kazutaka, Fujita, Manabu, Matsui, Akira, Shigemori, Toshiaki
• Format: Patent
• Language: English
• Published: 08.05.2012

a d a da d The present invention is intended to be able to ensure detecting whether an open-circuit occurs to a feeder within short time with simple configuration. A receiving apparatus according to the present invention receives image information transmitted from a capsule endoscope through a coaxial cable and a receiving antenna selected and switched to from among coaxial cables to connected to receiving antennas to , respectively by a changeover switch . The receiving apparatus includes a changeover switch , an open-circuit detecting circuit , and a control unit . The changeover switch branches the coaxial cables to near the changeover switch , and selects and switches to one of the branched coaxial cables. The open-circuit detecting circuit applies a direct-current voltage to the coaxial cable selected by the changeover switch through a constant-current source , and detects whether an open-circuit occurs to the coaxial cable by determining whether a voltage of the coaxial cable is grounded. The control unit controls the changeover switch to perform selection/switching, and controls the open-circuit detecting circuit to perform open-circuit detection synchronously with the selection/switching control over the changeover switch