Abstract
An IRIG code/video signal synchronizer has been developed that generates EIA RS 170/RS170A/RS330 and NTSC compatible video synchronizing signals that are directly referenced to an input standard IRIG Type A or B modulated serial time code. When an IRIG modulated serial time code is introduced into the synchronizer, detection of the beginning of a time code frame initiates generation of the first field in the first frame (00) in the output video signal. The video synchronizing signals are phase locked to the input time code modulated carrier. A very stable crystal controlled oscillator time base in the synchronizer insures that the phase lock loop is jitter free and video signal output continues even if the input time code is removed. The output composite video synchronizing signal is able to synchronize the operation of different video signal sources and directly reference their video output signals to the available IRIG modulated serial time code.
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