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