Video frame grabber comprising analog video signals analysis sys

Details Video frame grabber comprising analog video signals analysis sys Video frame grabber comprising analog video signals analysis sys

1997-02-03

1998-06-09

Hsia, Sherrie

Television

Synchronization

348572, H04N 504

Patent

active

057642990

ABSTRACT:
In a video frame grabber for digitizing analog video signals which have a pure analog video signal component and a synchronisation signal component, the synchronisation signals are digitized along with the pure analog video signals. Video gain and offset, sync gain, and sync threshold can be adjusted electronically. A variable time delay can be imposed on the sampling clock signals and on horizontal reference signals. Optimal values can be determined for the various parameters.

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