Inverse tracking over two different clock domains

Details Inverse tracking over two different clock domains Inverse tracking over two different clock domains

2008-04-08

2008-04-08

Tran, Trang U. (Department: 2622)

Television

Synchronization

Automatic phase or frequency control

C348S537000, C348S441000, C348S445000

Reexamination Certificate

active

07355652

ABSTRACT:
A video decoder in which the video source clock is generated entirely in the digital domain is disclosed herein. By creating a virtual version of the source clock in a numeric oscillator, the amount of noise in the system is substantially reduced. Furthermore, by transferring the digitized video signal, sampled with an asynchronous crystal clock, into the source clock domain, the accuracy of the brightness (amplitude) and color (phase) information can be greatly enhanced.

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patent: 6441860 (2002-08-01), Yamaguchi et al.
patent: 6833875 (2004-12-01), Yang et al.
patent: 2004/0119888 (2004-06-01), Arai
patent: 2007/0248285 (2007-10-01), Lippincott
patent: 100 13 935 A 1 (2001-04-01), None
International Search Report and Written Opinion received in corresponding PCT Application No. PCT/US2005/035580 dated Mar. 21, 2006.

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