Further, in general, {HEAD ~ the horizontal synchronizing signal} and the video signal are not synchronized with {TAIL ~ the same clock signal} 
are not synchronized with
Further , in general , { HEAD ~ the horizontal synchronizing signal } and the video signal are not synchronized with { TAIL ~ the same clock signal }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL