Method and apparatus for coordinating horizontal and...

Details Method and apparatus for coordinating horizontal and... Method and apparatus for coordinating horizontal and...

2007-06-12

2007-06-12

Patel, Nitin I. (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S212000

Reexamination Certificate

active

10287580

ABSTRACT:
In a signal coordinating method and apparatus, a pulse generating circuit receives a VSYNC signal and generates a plurality of critical pulses that define critical time periods from fields can control edges of the VSYNC signal. A determining circuit receives an HSYNC signal and the critical pulses, and generates a trigger signal upon detecting that a line scan control edge of the HSYNC signal appears during one of the critical time periods. A time delay loop introduces a time delay into the VSYNC signal upon receipt of the trigger signal to cause the critical time period to appear after the line scan control edge of the HSYNC signal.

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