adjusting a first negative transition parameter such that {HEAD ~ a first subsequent negative transition} of the first output signal occurs in {TAIL ~ closer temporal proximity} to a first subsequent reference negative transition time 
occurs in
adjusting a first negative transition parameter such that { HEAD ~ a first subsequent negative transition } of the first output signal occurs in { TAIL ~ closer temporal proximity } to a first subsequent reference negative transition time
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH