Invention Grant
US09361920B1 Compensation for track misalignment due to degradation of HAMR write head
有权
由于HAMR写头的劣化导致轨迹失准的补偿
- Patent Title: Compensation for track misalignment due to degradation of HAMR write head
- Patent Title (中): 由于HAMR写头的劣化导致轨迹失准的补偿
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Application No.: US14626157Application Date: 2015-02-19
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Publication No.: US09361920B1Publication Date: 2016-06-07
- Inventor: Wenzhong Zhu , Franklin P. Martens , Alfredo Sam Chu , Kaizhong Gao , Edward Charles Gage
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Cupertino
- Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee Address: US CA Cupertino
- Agency: Hollingsworth Davis, LLC
- Main IPC: G11B11/00
- IPC: G11B11/00 ; G11B5/56 ; G11B5/00 ; G11B7/00 ; G11B5/31
Abstract:
An offset from track center of data is determined in a data storage device. The data is written to a heat-assisted magnetic recording medium of the device, and the offset compensates for degradation of an optical component of a read/write head when writing the data. The offset is stored in a memory of the storage device. Using the offset, a track alignment is changed during subsequent writes via the read/write head.
Information query
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