{HEAD ~ Signal A} is inverted by inverter 325 and presented to {TAIL ~ the inhibit input} of one shot 311 and the s input of one shot 312 
is presented to
{ HEAD ~ Signal A } is inverted by inverter 325 and presented to { TAIL ~ the inhibit input } of one shot 311 and the s input of one shot 312
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH