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