Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Patent
1996-03-01
1998-11-17
Lao, Lun-Yi
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
345153, 348539, 348540, G09G 504
Patent
active
058383115
ABSTRACT:
Receiving an instruction designating a frequency f by an MPU (1), a programmable clock generator (2) generates a dot clock D which has the frequency f. The dot clock D and a horizontal synchronizing signal H having a cycle T.sub.H are supplied to a counter (3). The counter (3) counts the number N of activations of the dot clock D during the cycle T.sub.H. The activation number N is supplied to a comparator (4), together with a predetermined number K which is designated by the MPU (1). The comparator (4) compares these numbers and supplies a comparison result C to the MPU (1). The MPU (1) updates the frequency f, in accordance with the comparison result C.
REFERENCES:
patent: 4360788 (1982-11-01), Erps et al.
patent: 4905085 (1990-02-01), Faulhaber
patent: 4922343 (1990-05-01), Ardo
patent: 4985757 (1991-01-01), Yasuki et al.
patent: 5124671 (1992-06-01), Srivastava
patent: 5459435 (1995-10-01), Taki
Hayano Shiro
Nishiyama Kazuyoshi
Toda Masamitsu
Contec Co., Ltd.
Lao Lun-Yi
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