Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2003-06-17
2009-11-24
Kumar, Srilakshmi K (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S053000, C345S208000
Reexamination Certificate
active
07623126
ABSTRACT:
A display controller in a computer system controls the asynchronous output of graphics display data in a computer system having at least one fixed resolution flat panel display. Fixed panel displays may have problems displaying non-native resolutions particularly at lower resolutions. The controller of the present invention uses a time base converter, horizontal and vertical Discrete Time Oscillators (DTO), and polyphase interpolator, which may be Discrete Cosine Transform (DCT)-based to expand graphics display data asynchronously from native resolution to at least one resolution suitable for display on a fixed resolution panel. Graphics data may also be output asynchronously to a CRT. Time base converter receives frequency related input parameters and generates at least one asynchronous output at the desired output resolution.
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Japanese Office Action Summary from application No. PH09-163016 dispatched on Sep. 6, 2007.
Bril Vlad
Eglit Alexander J.
Kotha Sridhar
Kumar Srilakshmi K
NVIDIA Corporation
Zilka-Kotab, PC
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