This readhead asymmetry is determined by {HEAD ~ the method} of this invention, which is accomplished by measuring {TAIL ~ the output voltage pulses} of the readhead when it is excited by magnetic pulses both forward and rear of its read gap 
is accomplished by measuring
This readhead asymmetry is determined by { HEAD ~ the method } of this invention , which is accomplished by measuring { TAIL ~ the output voltage pulses } of the readhead when it is excited by magnetic pulses both forward and rear of its read gap
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH