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Convergence calibration in video displays with signal level control

  • US 6,333,768 B1
  • Filed: 02/24/1998
  • Issued: 12/25/2001
  • Est. Priority Date: 02/24/1998
  • Status: Expired due to Fees
First Claim
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1. A system for performing a convergence calibration operation using at least one beam, comprising:

  • a level controller for selectively controlling a level of an input video signal only when said input video signal includes a test pattern signal;

    a beam generator for generating a beam pattern in response to said input video signal supplied by said level controller;

    at least one sensor for converting the generated beam pattern to an output signal; and

    a programmable controller for receiving said output signal and for determining alignment of said at least one beam based on the received output signal.

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