As illustrated, a control signal {HEAD ~ V SYNC} first coordinates {TAIL ~ the reading} out of the even field, and then coordinates the reading out of the odd field 
As illustrated , a control signal { HEAD ~ V SYNC } first coordinates { TAIL ~ the reading } out of the even field , and then coordinates the reading out of the odd field
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH