In a head driving control apparatus used, for example, in a hard disc drive, a peak detector detects a peak value of a servo signal output from a data head. A CPU detects a thermal off-track distance L of the data head, on the basis of the peak value of the servo signal. When the thermal off-track distance...http://www.google.fr/patents/US5208711?utm_source=gb-gplus-shareBrevet US5208711 - Data recording/reproducing apparatus having recording head position detection and control
Data recording/reproducing apparatus having recording head position ...
