receiving {HEAD ~ a digital differential signal} having {TAIL ~ a first rate}, the digital differential signal comprising a first component and a second component 
having
receiving { HEAD ~ a digital differential signal } having { TAIL ~ a first rate } , the digital differential signal comprising a first component and a second component
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH