Low power apparatus used with a display device

Details Low power apparatus used with a display device Low power apparatus used with a display device

2007-10-02

2007-10-02

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S211000, C345S212000, C345S213000, C345S204000, C713S300000, C348S730000

Reexamination Certificate

active

10361637

ABSTRACT:
A low power apparatus used in a display device, which cuts off unnecessary power to the display device in the event of abnormal inputs of horizontal and/or vertical synchronous signals. The low power apparatus comprises a synchronous signal checking unit to check whether the inputs of horizontal and vertical synchronous signals are normal or abnormal, and a control unit to respond to the output of the synchronous signal checking unit to decide whether the operational power thereof is supplied or cut off and to detect normal or abnormal inputs of horizontal and vertical synchronous signals to determine whether to reset the synchronous signal checking unit. It is possible to cut off unnecessary power in a DPMS mode so that energy can be saved. Further, effective circuit integrations and cost reductions can be accomplished by reducing the switching devices used in the power stage.

REFERENCES:
patent: 5736873 (1998-04-01), Hwang
patent: 6006335 (1999-12-01), Choi et al.
patent: 6085326 (2000-07-01), Kim
patent: 6275221 (2001-08-01), Song
patent: 6404423 (2002-06-01), Kivela et al.
patent: 6515655 (2003-02-01), Thornblad
patent: 6844867 (2005-01-01), Yamada
patent: 10-10972 (2001-02-01), None

Affiliated with

Also associated with

Rating

Low power apparatus used with a display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low power apparatus used with a display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low power apparatus used with a display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3898472