Invention Grant
- Patent Title: Oscillation test for off track write
- Patent Title (中): 离线写入的振荡测试
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Application No.: US12184070Application Date: 2008-07-31
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Publication No.: US07885024B2Publication Date: 2011-02-08
- Inventor: Pirat Boonyurn
- Applicant: Pirat Boonyurn
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies, Netherlands, B.V.
- Current Assignee: Hitachi Global Storage Technologies, Netherlands, B.V.
- Current Assignee Address: NL Amsterdam
- Main IPC: G11B27/36
- IPC: G11B27/36

Abstract:
An enhanced oscillation test for detecting off track writing associated with a read/write head writing, on a magnetic media, a measurement track. Once the measurement track is written, a series of seek, write, and read operations is performed, e.g., between various origin tracks and the tracks adjacent to the measurement track, in order to detect any off track write problems. If a measurement track read operation fails a certain number of times, then an error code is generated which indicates an off track write problem.
Public/Granted literature
- US20100027149A1 OSCILLATION TEST FOR OFF TRACK WRITE Public/Granted day:2010-02-04
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