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Video display monitor

  • US 6,243,073 B1
  • Filed: 12/08/1997
  • Issued: 06/05/2001
  • Est. Priority Date: 12/06/1996
  • Status: Expired due to Fees
First Claim
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1. A video display monitor for use with a video signal having a vertical synchronizing frequency in which each field of the video signal is divided into a respective number of subfields, said subfields respectively weighted with one of a time width and a pulse value, and video images in said subfields are overlapped in a time base for displaying said video images as grey levels, said video display monitor comprising:

  • vertical synchronizing frequency measurement means for providing a measurement of the vertical synchronizing frequency of said video signal;

    subfield number adjustment means for adjusting the number of said subfields in accordance with said measurement; and

    subfield length adjustment means for adjusting one of i) the time width of said subfields and ii) the pulse value of said subfields in accordance with the measuring result of said vertical synchronizing frequency measurement means.

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