Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Patent
1996-12-05
1999-10-12
Shalwala, Bipin H.
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
345121, 345123, 348511, H04N 504
Patent
active
059661194
ABSTRACT:
A pseudo-synchronizing signal generator for use in a digital image processing apparatus is disclosed. The pseudo-synchronizing signal generation circuit comprising a pulse generating circuit for generating a train of predetermined pulses as being a dot clock oscillation signal for use with a digital image processing apparatus in response to a synchronizing signal input from an external source, a counting controller disposed to input a program data signal for synchronizing the program data signal with a pulse output by the pulse generating circuit and for outputting a program data enable signal, a down counter enabled by the program data enable signal synchronized with the clot clock oscillation signal so as to count down from a preset value, a detector for detecting when the down counting operation of the down counter reaches zero for generating a disable signal to be applied to the down counter and for generating a first pseudo-synchronizing signal, and a multiplexer to selectively outputting, as a second pseudo-synchronizing signal, a selected one of the first pseudo-synchronizing signal and the horizontal synchronizing signal in responsive to the program data signal. As a result, the circuit is able to generate a pseudo-synchronizing signal having a predetermined delay time duration with respect to its inherent synchronizing signal, in synchronization with a train of dot clock oscillation signal, thereby enabling a digital image processing apparatus to perform a positioning of a pictorial image being display on a variable visual monitor.
REFERENCES:
patent: 3742288 (1973-06-01), Albrecht et al.
patent: 4736162 (1988-04-01), Ishihara
patent: 5414470 (1995-05-01), Hotta et al.
patent: 5631709 (1997-05-01), Lam et al.
patent: 5790112 (1998-08-01), Hwang
patent: 5805151 (1998-09-01), Hwang
Bushnell Esq. Robert E.
Kovalick Vincent E.
Samsung Electronics Co,. Ltd.
Shalwala Bipin H.
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