{HEAD ~ The detection circuit} 26 may detect, for example, a leading or trailing edge of a signal pulse by monitoring samples of {TAIL ~ the digital signal} 
{ HEAD ~ The detection circuit } 26 may detect , for example , a leading or trailing edge of a signal pulse by monitoring samples of { TAIL ~ the digital signal }
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 OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL