Equilibrium based vertical sync phase lock loop for video...

Details Equilibrium based vertical sync phase lock loop for video... Equilibrium based vertical sync phase lock loop for video...

2008-04-22

2008-04-22

Lee, M. (Department: 2622)

Television

Synchronization

Automatic phase or frequency control

Reexamination Certificate

active

10616754

ABSTRACT:
The present invention discloses a PLL (90), which may be implemented in software, hardware, or a combination of software and hardware, which comprises a sync detector (92), a loop filter (94), a vertical sync discrete time oscillator (DTO) (98), and an output logic (100) adapted to detect a vertical sync (222), wherein the loop filter (94), the vertical sync DTO (98), and the output logic (100) are coupled to the sync detector (92).

REFERENCES:
patent: 5459766 (1995-10-01), Huizer et al.
patent: 6169581 (2001-01-01), Conover
patent: 6366327 (2002-04-01), Renner et al.
patent: 6594330 (2003-07-01), Wilson

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