The present invention provides apparatus for calculating the skew distortion introduced in each channel of a multi channel longitudinal recorder when {HEAD ~ recorded information signals} in {TAIL ~ at least two channels} contain a detectable characteristic 
The present invention provides apparatus for calculating the skew distortion introduced in each channel of a multi channel longitudinal recorder when { HEAD ~ recorded information signals } in { TAIL ~ at least two channels } contain a detectable characteristic
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH