External synchronous signal generating circuit and phase...

Details External synchronous signal generating circuit and phase... External synchronous signal generating circuit and phase...

2007-11-13

2007-11-13

Yenke, Brian P. (Department: 2622)

Television

Synchronization

Automatic phase or frequency control

C348S500000, C348S516000, C348S521000, C348S525000, C348S537000, C348S540000, C348S542000, C348S547000, C348S705000, C348S706000

Reexamination Certificate

active

10981459

ABSTRACT:
An external synchronous signal circuit comprises: means for measuring a phase difference between the external frame synchronous signal (FRM_SYNC) and the frame synchronous signal (FRM) of the digital video signal; means for generating a signal (EXT_H) having the same period as that of the horizontal synchronous signal (HBK) of the digital video signal, the signal (EXT_H) having the measured phase difference with reference to the frame synchronous signal (FRM) of the digital video; and means for generating a signal (EXT_F) having the same period as that of the frame synchronous signal (FRM) of the digital video signal, the signal (EXT_F) having the measured phase difference with reference to the frame synchronous signal (FRM) of the digital video. The generated signals (EXT_F) and (EXT_H) are outputted as an external frame timing signal and an external horizontal timing signal of an external synchronous signal.

REFERENCES:
patent: 5777686 (1998-07-01), Jennes et al.
patent: 6137537 (2000-10-01), Tsuji et al.
patent: 6211918 (2001-04-01), Uwabata et al.
patent: 6493034 (2002-12-01), Elberbaum
patent: 6636269 (2003-10-01), Baldwin
patent: 6697122 (2004-02-01), Kim
patent: 6847409 (2005-01-01), Sakai et al.
patent: 6909468 (2005-06-01), Kawada et al.
patent: 6999131 (2006-02-01), Kishimoto et al.
patent: 2002/0041335 (2002-04-01), Taraci et al.
patent: 11-215447 (1999-08-01), None

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