Appeal No. 95-3570
Application 08/215,192
Each of the claims on appeal recites a method for
compensating for variations in the acceleration and deceleration
capability of a disc drive voice coil actuator motor having a
nominal torque capability. In general, the claimed methods
require the steps of determining the actual torque capability of
the voice coil actuator motor, determining a compensation factor
from the actual and nominal torque capabilities, and driving the
motor in proportion to the compensation factor.
Although the disk drive disclosed by Albert includes a voice
coil actuator motor (see column 5, line 57 through column 6, line
3), Albert makes no mention of determining the actual torque
capability of this motor or of using this parameter in
conjunction with the motor’s nominal torque capability to
determine a compensation factor for driving the motor.
Nonetheless, the examiner states that “Column 3, lines 18 and 19,
of Albert clearly discusses measuring the approach time for each
seek. In addition, Col. 3, lines 50-53, clearly discusses
measuring the velocity demand. Both of these operations would
seen [sic, seem] to be determining the torque” (answer, page 4).
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Last modified: November 3, 2007