In {TAIL ~ addition}, filtering parameters of the filtering means can be varied and factors, by which a clock rate of {HEAD ~ the signal} is increased or reduced, can be changed 
In { TAIL ~ addition } , filtering parameters of the filtering means can be varied and factors , by which a clock rate of { HEAD ~ the signal } is increased or reduced , can be changed
OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH