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