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Signal Reception Apparatus

  • US 20080192866A1
  • Filed: 09/20/2007
  • Published: 08/14/2008
  • Est. Priority Date: 02/14/2007
  • Status: Active Grant
First Claim
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1. A signal reception apparatus comprising:

  • an antenna which receives an OFDM (Orthogonal Frequency Division Multiplex) signal;

    a frequency conversion unit configured to perform frequency conversion on the received OFDM signal to obtain a converted OFDM signal;

    an A/D conversion unit configured to perform analog-to-digital conversion on the converted OFDM signal to obtain a first digital OFDM signal;

    a setting unit configured to set a first interval of one OFDM symbol interval of the OFDM signal;

    a demodulation unit configured to demodulate an OFDM symbol from a second digital OFDM signal corresponding to the first interval, the second digital OFDM signal being included in the first digital signal; and

    a power control unit configured to control power supply to the frequency conversion unit and the A/D conversion unit in the first interval, and stop the power supply to at least one of the frequency conversion unit and the A/D conversion unit in a second interval other than the first interval.

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