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TRANSMISSION-RECEPTION APPARATUS AND OPERATION DETERMINATION METHOD THEREOF

  • US 20050219117A1
  • Filed: 05/28/2004
  • Published: 10/06/2005
  • Est. Priority Date: 06/04/2003
  • Status: Active Grant
First Claim
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1. A transmission-reception apparatus comprising:

  • a transmission section which transmits a signal to a surrounding space;

    a reception section which receives the signal from the surrounding space;

    a transmission control section which controls the transmission section to transmit the signal in a pulse shape;

    a signal detection section which detects level of the signal received by the reception section; and

    an operation determination section which determines as to whether or not a timing at which the level of the received signal exceeds a first determination level is within a first time period on the basis of detection result by the signal detection section and a timing at which the transmission control section controls the transmission section to transmit the signal in the pulse shape, to determine as to whether or not the transmission section and the reception section operate normally.

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