recording the digital sample data in {TAIL ~ association} with the respective time difference at {HEAD ~ the transition} of the sample clock 
recording the digital sample data in { TAIL ~ association } with the respective time difference at { HEAD ~ the transition } of the sample clock
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH