The use of digital feedback loops allows {HEAD ~ information} recovered from {TAIL ~ the digital signals} to be precise 
recovered from
The use of digital feedback loops allows { HEAD ~ information } recovered from { TAIL ~ the digital signals } to be precise
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH