(57) Two servoing functions, both operating from the data reading and recording transducer,
are performed in a high performance movinghead disc drive. One servo rapidly moves
the head from its current track to any other track utilizing absolute track identifying
addresses recorded in the inter-sector gap between data sectors. Once located on a
track, the other servo maintains head location precisely over the center of that track
while data is being read or recorded employing track following information also recorded
in the inter-sector gap. The resolution of transducer location is enhanced by secondary
use of the track following information.
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