Image signal processing device

Details Image signal processing device Image signal processing device

2006-11-01

2010-10-19

Hsia, Sherrie (Department: 2622)

Television

Nonpictorial data packet in television format

Sync

C348S524000, C348S540000

Reexamination Certificate

active

07817207

ABSTRACT:
An image signal processing device, which uses a horizontal synchronizing signal detector to find a frequency (period) of an original horizontal synchronizing signal from an external input horizontal synchronizing signal and provide an internal reference horizontal synchronizing signal with the same frequency same as the original horizontal synchronizing signal to a horizontal synchronizing signal output controller for determining to output the external input horizontal synchronizing signal according to the frequency of the internal reference horizontal synchronizing signal and filtering out the original horizontal synchronizing signal.

REFERENCES:
patent: 5133008 (1992-07-01), Fujita
patent: 5301033 (1994-04-01), Chon
patent: 5319706 (1994-06-01), Mizukata et al.
patent: 5337157 (1994-08-01), Nakata
patent: 5596372 (1997-01-01), Berman et al.

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