Computer graphics processing and selective visual display system – Data responsive crt display control – Data responsive deflection control
Patent
1995-10-23
1997-09-23
Hjerpe, Richard
Computer graphics processing and selective visual display system
Data responsive crt display control
Data responsive deflection control
345 12, G09G 108
Patent
active
056709722
ABSTRACT:
A self-diagnostic arrangement for a video display apparatus and method effectuating the same is disclosed. The apparatus according to the present invention includes a cable connector, amplifiers and a cathode ray tube and comprises a microprocessor storing information on a display status, for selectively switching signals to generate horizontal and vertical sync signals for displaying a variety of self-diagnostic displays, an on screen display IC for supplying a blanking signal and a video signal correspondingly responsive to information supplied from the microprocessor and a H/V deflection circuit for supplying on screen display video. signals to the CRT. There is also provided a method of self-diagnosis, which comprises the steps of generating internal horizontal and vertical sync.signals of predetermined frequency levels and displaying self-diagnostic screens representing video component colors and a display status.
REFERENCES:
patent: 4513318 (1985-04-01), Wilensky et al.
patent: 5504521 (1996-04-01), Webb et al.
Bushnell Esq. Robert E.
Hjerpe Richard
Samsung Electronics Co,. Ltd.
Tran Vui T.
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