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US 7,889,627 B2Granted
Preload modulation to reduce head motion hysteresis
AssigneeSeagate Technology LLC
InventorsNarayanan Ramakrishnan, Patrick Beckrow Chu, Mark David Bedillion
Life of this patent
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Abstract
An apparatus includes a data storage media and a plurality of heads, the data storage media and heads being structured and arranged for relative movement between the heads and storage media causing the heads to move along a scan path, and an actuator for changing a magnitude of head to media force as the heads move along the scan path. A method for reducing head motion hysteresis is also provided.
Claims17
An apparatus comprising:
- a data storage media;
- a plurality of heads;
- the data storage media and heads being structured and arranged for relative movement between the heads and storage media causing the heads to move along a scan path;
- and
- an actuator for changing a magnitude of head to media contact force as the heads move along the scan path, wherein the scan path includes seek portions and settle portions, and the amplitude and frequency of the head to media force is different during the seek portions and the settle portions.
2 more elements
A method comprising:
- providing relative movement between a plurality of heads and a storage media, causing the heads to move along a scan path;
- and
- changing a magnitude of head to media contact force as the heads move along the scan path, wherein the scan path includes seek portions and settle portions and the amplitude and frequency of the head to media contact force is different during the seek portions and the settle portions.
Dependencies are inferred from the claim text.