Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Reexamination Certificate
2005-01-04
2005-01-04
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
C360S046000, C360S053000, C360S076000
Reexamination Certificate
active
06839193
ABSTRACT:
A method for optimizing the read-to-write offset of a disk drive system in respect of a track is provided. In one aspect the method includes the step of determining a first read position amongst a range of test positions offset relative to the track on the basis of read signal strength. The method further includes the steps of calculating a subrange of test positions about the first read position, selecting a second read position from the subrange on the basis of bit error rates and setting the read-to-write offset as a function of the second read position. In addition a disk drive system including means for optimally setting the read-to-write offset in respect of a track is provided.
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Chong Fong Kheon
Choo Quek Leong
Gan Kah Liang
Ngwe Myint
Wang Jun
Berger Derek J.
Figueroa Natalia
Hudspeth David
Lucente David K.
Seagate Technology LLC
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