The compressor includes {HEAD ~ structure} for detecting a data image pattern and for generating {TAIL ~ a code} representing the detected data image pattern 
for generating
The compressor includes { HEAD ~ structure } for detecting a data image pattern and for generating { TAIL ~ a code } representing the detected data image pattern
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH