{HEAD ~ Jitter} is a type of timing error between the expected or ideal timing of a signal and the actual timing of {TAIL ~ a signal} in which the characteristics of the timing error change with time 
{ HEAD ~ Jitter } is a type of timing error between the expected or ideal timing of a signal and the actual timing of { TAIL ~ a signal } in which the characteristics of the timing error change with time
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH