Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2008-05-20
2008-05-20
Mengistu, Amare (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S691000
Reexamination Certificate
active
07375734
ABSTRACT:
A GAMMA adjustment method for a multi-channel driver of a monitor and device thereof are provided. The GAMMA adjustment method converts an m-bit input signal of a high bit signal corresponding to an m-bit simulated GAMMA curve into an n-bit signal of a low bit signal. Then the n-bit signal together with an n-bit input signal are input to a driver component. The driver component compares the two low-bit signals to generate a PWM driver signal supplied to a data channel of the monitor. Since the two n-bit signals of the driver component are of low quantity bit, the driver chooses n-bit digital driver components to greatly reduce an overall layout area of the driver and further to reduce manufacture cost.
REFERENCES:
patent: 6069609 (2000-05-01), Ishida et al.
patent: 7068283 (2006-06-01), Huang
patent: 2005/0231498 (2005-10-01), Abe et al.
Chin Hsu-Yuan
Chiu Han-Hui
Chuang Yu-Chun
Hsieh Cheng-Han
David Pai Chao-Chang
Mengistu Amare
Pai Patent & Trademark Law Firm
Silicon Touch Technology Inc.
Sitta Grant D.
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