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Television signal receiver capable of cancelling linear and non-linear distortion

  • US 8,502,924 B2
  • Filed: 11/05/2007
  • Issued: 08/06/2013
  • Est. Priority Date: 11/05/2007
  • Status: Active Grant
First Claim
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1. A television signal receiver, comprising:

  • a tuner for selecting one channel from a radio frequency (RF) television signal to generate an intermediate frequency (IF) signal;

    an IF distortion canceller coupled to the tuner for canceling a signal distortion in the IF signal to generate an IF distortion-cancelled signal, wherein the IF distortion canceller comprises a front-end portion having an input to receive the IF signal and cancel non-linear distortion in the IF signal, wherein the IF distortion canceller further comprising a back-end portion having an input to receive an output of the front-end portion and cancel linear distortion carried in the IF signal, the back-end portion outputting the IF distortion-cancelled signal; and

    an IF demodulator coupled to the IF distortion canceller for demodulating the IF distortion-cancelled signal to output a baseband signal.

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