{TAIL ~ The byte pattern} is descrambled to generate {HEAD ~ coded data} and the data is decoded 
{ TAIL ~ The byte pattern } is descrambled to generate { HEAD ~ coded data } and the data is decoded
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH