Also recorded along with the video signals is a timing signal produced by {HEAD ~ a timing track generator} 42 based on {TAIL ~ information} received from the camera clock 28 
based on
Also recorded along with the video signals is a timing signal produced by { HEAD ~ a timing track generator } 42 based on { TAIL ~ information } received from the camera clock 28
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH