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White space spectrum sensor for television band devices

  • US 8,373,759 B2
  • Filed: 08/18/2009
  • Issued: 02/12/2013
  • Est. Priority Date: 08/18/2009
  • Status: Expired due to Fees
First Claim
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1. A television band device, comprising:

  • DTV pilot signal detection logic that searches for a DTV pilot signal in a smoothed power spectrum derived from a television channel signal frequency translated to a television channel signal centered at an intermediate frequency and generates DTV pilot signal detection decisions associated with the monitored television channel;

    wireless microphone detection logic that searches for wireless microphone or narrowband signals in the smoothed power spectrum and generates wireless microphone detection decisions associated with the monitored television channel; and

    a sensing manager that receives the DTV pilot signal detection decisions and the wireless microphone detection decisions and analyzes at least one the respective decisions to determine whether the monitored television channel is available white space.

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