Appeal No. 1998-0828
Application 08/438,091
The disclosed invention pertains to a method and
apparatus for positioning a transducer having read and write
heads in a disc drive.
Representative claim 1 is reproduced as follows:
1. An apparatus in a disc drive for positioning a
transducer relative to a magnetic disc, the magnetic disc having
a surface and a track on the surface, the apparatus comprising:
a rotary actuator;
an actuator arm coupled to the rotary actuator;
a load beam coupled to the actuator arm;
a suspension coupled to the load beam;
an air bearing coupled to the suspension;
a transducer coupled to the air bearing and positioned to access
the surface of the disc, the transducer having a pair of
spaced disc accessing elements;
a second actuator operably coupled to the air bearing and the
load beam and being controllable to move the air bearing
relative to the surface of the disc and relative to the load
beam; and
a controller, coupled to the second actuator to reposition the
transducer to align one of the pair of spaced disc accessing
elements with the track on the surface of the disc, the
controller varying an amount by which the transducer is
repositioned based on a radial position of the track on the
surface of the disc and based on spacing between the disc
accessing elements on the transducer.
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