In other words, the number of clocks of the internal clock corresponding to one horizontal period is constant, the level changes to “L” level every time {TAIL ~ the count} reaches {HEAD ~ a predetermined number}, and an H reset signal which is at “L” level for a preset period of time 
In other words , the number of clocks of the internal clock corresponding to one horizontal period is constant , the level changes to “ L ” level every time { TAIL ~ the count } reaches { HEAD ~ a predetermined number } , and an H reset signal which is at “ L ” level for a preset period of time
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH