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Multi-scan type display system with pointer function

  • US 5,517,210 A
  • Filed: 09/02/1993
  • Issued: 05/14/1996
  • Est. Priority Date: 02/26/1993
  • Status: Expired due to Fees
First Claim
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1. A multi-scan type display system with a pointer function for indicating a desired position on a display comprising:

  • multi-scan type display means for displaying a plurality of kinds of main picture signals having different numbers of scanning lines; and

    pointer position identifying signal generating means for generating a pointer position identifying signal,wherein said pointer position identifying signal generating means transfers the pointer position identifying signal to said multi-scan type display means;

    said multi-scan type display means includes;

    universal vertical position address signal generating means,horizontal position address signal generating means,pointer signal generating means, andsuperimposing means,wherein said pointer signal generating means generates a pointer signal in response to the pointer position identifying signal, a universal vertical position address signal and a horizontal position address signal, said universal vertical position address signal addressing universally consistent screen position by compensation of said different numbers of scanning lines, andwherein said superimposing means superimposes the pointer signal on the main picture signal.

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