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US 11,769,525 B1Granted
Seek-induced vibration compensation
AssigneeSeagate Technology LLC
InventorsJosiah Wernow, Evgeny Kharisov
Life of this patent
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Abstract
A method includes generating a first feedforward signal based, at least in part, on a sensor signal. The method further includes generating a second feedforward signal based, at least in part, on a feedforward seek table. A control signal is modified based, at least in part, on the first feedforward signal and the second feedforward signal. A position of an actuator is controlled in response to the modified control signal.
Claims20
A method comprising:
- generating a first feedforward signal based, at least in part, on a sensor signal and a feedforward seek table;
- generating a second feedforward signal based, at least in part, on the feedforward seek table;
- modifying a control signal based, at least in part, on the first feedforward signal and the second feedforward signal;
- and
- controlling a position of an actuator in response to the modified control signal.
2 more elements
A system on a chip (SOC) comprising:
- an integrated circuit comprising memory and a processor, the memory containing instructions that, when executed by the processor, cause the processor to:
- generate a first feedforward signal based, at least in part, on a sensor signal and a feedforward seek table;
- generate a second feedforward signal based, at least in part, on the feedforward seek table;
- modify a control signal based, at least in part, on the first feedforward signal and the second feedforward signal;
- and
- control a position of an actuator in response to the modified control signal.
3 more elements
A hard disk drive comprising:
- a voice coil motor assembly arranged to pivot an actuator;
- and
- an integrated circuit configured to control a position of the actuator based, at least in part, on two separate feedforward signals and a feedback signal, wherein the two separate feedforward signals and the feedback signal are combined together at a summing node.
Dependencies are inferred from the claim text.