The present invention relates to {HEAD ~ apparatus} for calculating skew in {TAIL ~ a multi channel longitudinal recorder} 
The present invention relates to { HEAD ~ apparatus } for calculating skew in { TAIL ~ a multi channel longitudinal recorder }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL