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AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorsSiri S. WEERASOORIYA, Richard M. EHRLICH, Thorsten SCHMIDT
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A seek operation of a first actuator in a multi-actuator drive is modified, so that one or more disturbance-generating portions of the seek operation do not adversely affect operation of a second actuator in the drive. Radial motion of the aggressor actuator is controlled by limiting a slew rate of the first actuator during one or more portions of the seek operation to be less than or equal to a threshold value. Because slew rate of the first actuator is the rate of change of radial acceleration of the aggressor actuator with respect to time, limiting the slew rate of the first actuator prevents or reduces mechanical disturbances caused by jerk associated with motion of the first actuator.
A method of performing a seek operation in a split actuator drive, wherein the split actuator drive includes first and second actuators, wherein the first actuator is coupled to a head and is controlled by a first controller in accordance with a parameter for a target radial velocity for the head, the method comprising:
Dependencies are inferred from the claim text.