Display apparatus and error detection method thereof

Computer graphics processing and selective visual display system – Display driving control circuitry

Reexamination Certificate

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Details

C345S212000, C345S214000

Reexamination Certificate

active

07027042

ABSTRACT:
A display apparatus includes a first video signal processing part which processes a video signal output from a video card provided in a computer main body and displays a picture thereof, a picture data storing part, and an error detecting part which captures the video signal at predetermined intervals, stores picture data of the video signal in the picture data storing part, compares the stored picture data to each other after elapse of a predetermined period of time, and outputs an error signal to the computer main body in response to the stored picture data being equal to each other. With this configuration, an error of a computer system is detected and an error signal is output to the computer system in response to a changeless video signal being continuously output from a video card of a computer main body.

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