Television – Special applications – Observation of or from a specific location
Patent
1995-08-28
1999-11-30
Lee, Michael H.
Television
Special applications
Observation of or from a specific location
348153, 348212, 348512, H04N 718
Patent
active
059951400
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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Bauerle David William
Cooper Alan Neal
Lee Michael H.
Schultz George R.
Ultrak Inc.
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