Multi-scan type display system with pointer function
First Claim
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.
1 Assignment
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Accused Products
Abstract
A multi-scan type display apparatus with pointer function includes a multi-scan type display unit for displaying a plurality of kinds of main picture signals having different numbers of scanning lines and a pointer position identifying signal generating circuit for generating a pointer position identifying signal. The pointer position identifying signal generating circuit transfers the pointer position identifying signal to the multi-scan type display unit, the multi-scan type display unit includes a universal vertical position address signal generating circuit, a horizontal position address signal generating circuit, a pointer signal generating circuit and a superimposing circuit. The pointer signal generating circuit generates a pointer signal in response to the pointer position identifying signal, a universal vertical position address signal and a horizontal position address signal, the pointer signal is superimposed on the main picture signal by the superimposing circuit, so that even if the input signal to the multi-scan type display unit is changed over to a different one having a different number of scanning lines, a pointer display position is kept constant on the display unit, and the pointer position can be moved to a desired position by controlling the pointer position identifying signal.
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Citations
7 Claims
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1. A multi-scan type display system with a pointer function for indicating a desired position on a display comprising:
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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, and superimposing 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, and wherein said superimposing means superimposes the pointer signal on the main picture signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification