A counting circuit includes {HEAD ~ a digital counter} for counting the pulses of {TAIL ~ an input signal} during a counting interval and a pair of digital latches for latching the binary state of the input signal at the beginning and end of the counting interval, respectively 
A counting circuit includes { HEAD ~ a digital counter } for counting the pulses of { TAIL ~ an input signal } during a counting interval and a pair of digital latches for latching the binary state of the input signal at the beginning and end of the counting interval , respectively
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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