| 摘要 |
<P>PROBLEM TO BE SOLVED: To receive a video signal so that power can be saved in a transmitter side such as capsule type endoscope. <P>SOLUTION: A receiver 2 selectively receives the radio signal of a frame configuration having a video signal period for receiving a video signal and an intensity receiving period including information for measuring reception electric field intensity by using a plurality of reception antennas A1-An. In this receiver, one part in a synchronization period in the video signal period is set on one part or the entire of the intensity receiving period, and an antenna for measuring the reception electric field and an antenna for receiving a video signal are switched in the synchronization period, using a synchronization signal in the synchronization period as a signal for measuring the receiving electric field intensity. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
