System and method for synchronization of multiple video cameras
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United States of America Patent
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Nov 30, 1999
Grant Date -
N/A
app pub date -
Aug 28, 1995
filing date -
Aug 28, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A plurality of video cameras provide video signals to a video switcher of a video controller. The video switcher selects a video signal of one of the video cameras as the output video based upon a camera control code sent to the video switcher by a timing controller of the video controller. A video synchronization separator of the video controller reads the vertical synchronization interval and the horizontal synchronization pulse from the output video signal and sends those synchronization signals to the timing control. The timing controller generates a vertical drive signal having a plurality of vertical drive pulses that are timed with the vertical synchronization intervals from the video synchronization separator. The timing controller also generates a horizontal drive signal having horizontal drive pulses that are timed with the horizontal synchronization pulses from the video synchronization separator.
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