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METHOD AND APPARATUS FOR DC RESTORATION USING FEEDBACK

  • US 20110069236A1
  • Filed: 08/23/2010
  • Published: 03/24/2011
  • Est. Priority Date: 08/22/2006
  • Status: Active Grant
First Claim
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1. A feedback circuit for compensating for DC offset in an output signal comprising:

  • a sampling circuit configured to sample said output signal at a time during which a DC amplitude of an input signal has a known value to obtain a DC offset value;

    a compensation circuit for applying an inverse of said DC offset value to said input signal.

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