Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2006-05-02
2006-05-02
Shankar, Vijay (Department: 2673)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S205000, C345S206000
Reexamination Certificate
active
07038669
ABSTRACT:
A method is taught for providing a reference video signal to a video display through a video interface from a video display adapter for a host computer. The method includes the step of providing a horizontal sync line to carry a horizontal sync signal that occupies pre-defined time intervals as a representation of a horizontal sync pulse. Another step is signaling to the video display adapter that a reference amplitude pulse will be sent on a video data line. A further step is sending the reference amplitude pulse on a video data line during the pre-determined time intervals when the horizontal sync signal occupies the horizontal sync line.
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Dharia Prabodh
Lange Richard P.
Shankar Vijay
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