Video switcher and video switching method

Details Video switcher and video switching method Video switcher and video switching method

2008-07-30

2010-02-23

Yenke, Brian P (Department: 2622)

Television

Synchronization

C348S521000, C348S525000, C348S706000

Reexamination Certificate

active

07667774

ABSTRACT:
A video switcher includes: a video signal switching device for switching a video signal to be transmitted to a video display unit from a first video signal supplied from a first video input unit into a second video signal supplied from a second video input unit; and a synchronization signal switching device for switching a synchronization signal to be transmitted to the video display unit from a first synchronization signal supplied from the first video input unit into a second synchronization signal supplied from the second video input unit. The synchronization signal switching device starts transmission of the second synchronization signal to the video display unit after stops transmission of the first synchronization signal to the video display unit. The video signal switching device starts transmission of the second video signal to the video display unit, after stop of transmission of the first video signal to the video display unit and start of transmission of the second synchronization signal to the video display unit.

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