Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2008-07-01
2008-07-01
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S211000, C345S213000, C345S055000, C345S204000
Reexamination Certificate
active
07394461
ABSTRACT:
A displaying apparatus includes a connector having a DDC communication pin which communicates with a video card provided in a computer main body, a video signal processing unit which processes picture signals supplied through the connector, a power circuit unit which converts commercial alternating current (AC) power into driving voltages, and a controlling unit which controls power supplied to each of signal processing units from the power circuit unit to be on or off in response to existence or non-existence of DDC voltage signals input through the DDC communication pin of the connector. Accordingly, power of the displaying apparatus is controlled to be on or off in response to a power-on or off state of the computer main body, and allows the power thereof to be consumed at a minimum level under the condition of a stand-by power mode.
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Hjerpe Richard
Samsung Electronics Co,. Ltd.
Shapiro Leonid
Staas & Halsey , LLP
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