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Filter circuit with bandwidth varied as a function of bit error rate and luminance level

  • US 5,396,293 A
  • Filed: 05/02/1994
  • Issued: 03/07/1995
  • Est. Priority Date: 12/27/1990
  • Status: Expired due to Fees
First Claim
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1. Apparatus for enhancing the quality of an image corresponding to a television signal including a digital component comprising:

  • means responsive to said digital component of said television signal for detecting the error rate of said digital component;

    means responsive to said televisions signal for separating said television signal into luminance and chrominance components;

    means including a first filter controllable in response to a first filter control signal for producing a filtered version of said luminance component;

    means including a second filter controllable in response to a second filter control signal for producing a filtered version of said chrominance component; and

    means for generating said first and second filter control signals for said first and second filters, respectively, in response to said detected error rate of said digital component of said television signal.

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