Method and system for 3D comb synchronization and alignment...

Details Method and system for 3D comb synchronization and alignment... Method and system for 3D comb synchronization and alignment...

2008-07-29

2008-07-29

Kostak, Victor R (Department: 2622)

Television

Synchronization

Locking of video or audio to reference timebase

C348S497000, C348S549000

Reexamination Certificate

active

10875436

ABSTRACT:
In a method and system for 3D comb synchronization and alignment of standard and non-standard video signals, a coarse synchronization is performed on a bottom frame, a current frame, and a top frame based on a bottom frame field count. The current frame is assigned the frame transferred immediately prior to a bottom frame whereas the top frame is assigned the frame transferred two frames. A current frame window signal and a top frame window signal may be used to lock the current frame and the top frame to a bottom frame vertical sync signal. After coarse synchronization, the video frames are finely aligned by correlating a phase difference between the subcarrier signals in each frame and modifying the phase difference until the correlation results in a specified phase locked value range. This method and system may facilitate the handling of video stream switching and non-standard data streams.

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