However, persons skilled in the art can alter an input signal of an input end of {HEAD ~ the DDA} 316 according to {TAIL ~ the above disclosure} 
according to
However , persons skilled in the art can alter an input signal of an input end of { HEAD ~ the DDA } 316 according to { TAIL ~ the above disclosure }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL