Furthermore, in {HEAD ~ certain embodiments}, the number of {TAIL ~ gates} used and the fanout on the signals may be limited, which may provide for scalability and low area usage 
Furthermore , in { HEAD ~ certain embodiments } , the number of { TAIL ~ gates } used and the fanout on the signals may be limited , which may provide for scalability and low area usage
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH 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 OTH