Flat display device and control method thereof

Details Flat display device and control method thereof Flat display device and control method thereof

2005-09-27

2008-12-30

Ometz, David (Department: 2622)

Television

Video display

C348S792000, C348S521000, C348S547000, C348S790000, C345S213000, C345S087000, C345S098000

Reexamination Certificate

active

07471345

ABSTRACT:
A flat display device includes, vertical synchronization lock means which generates an internal vertical synchronization signal, a window signal generating circuit which generates a window signal by use of the internal vertical synchronization signal, a detecting circuit which detects whether or not an external vertical synchronization signal is present in a period of the window signal, and a determination circuit which determines whether a preset condition that a plurality of detection signals are present in a preset period is satisfied or not and controls an output inhibition circuit to inhibit a gate signal from being output when the preset condition is not satisfied.

REFERENCES:
patent: 6115020 (2000-09-01), Taguchi et al.
patent: 6593918 (2003-07-01), Taguchi et al.
patent: 6667730 (2003-12-01), Taguchi et al.
patent: 6741229 (2004-05-01), Yanagi et al.
patent: 6812915 (2004-11-01), Yamaguchi
patent: 6961034 (2005-11-01), Kusanagi
patent: 11-119747 (1999-04-01), None

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