System and method for detecting shifting of reader-writer offset in a heat-assisted magnetic recording head

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United States of America Patent

PATENT NO 9418688
SERIAL NO

14812032

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Abstract

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A heat-assisted magnetic recording head is configured to write data to and read data from a magnetic recording medium. The head comprises a reader and a writer including a near-field transducer (NFT). The reader comprises a center which is laterally offset relative to a center of the writer to define a reader-writer offset (RWO) therebetween. A controller is configured to control the writer to write data to data tracks of the medium, detect a shift in the RWO, and in response to the detected shift in the RWO, control the writer to write data to a plurality of tracks defining a reserved band during an open period of the reserved band.

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Patent Owner(s)

Patent OwnerAddress
SEAGATE TECHNOLOGY LLC10200 SOUTH DEANZA BLVD CUPERTINO CA 95014

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gaertner, Mark Allen Vadnais Heights, US 71 2854
Rausch, Tim Farmington, US 84 1280
Stone, Tong Shirh Eden Prairie, US 6 74

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