Method and apparatus for controlling motion of storage media

Details Method and apparatus for controlling motion of storage media Method and apparatus for controlling motion of storage media

2008-01-31

2010-10-12

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data verification

Reexamination Certificate

active

07813069

ABSTRACT:
A method of controlling relative motion of a data storage medium on which data is stored in data groups comprising tracks extending across the storage medium and a rotatable transducer for reading data from the storage medium includes determining from the data groups a start reread data group at which a data reread process is to start following detection of a read error condition in a preceding data read process. The method also includes obtaining a reread track reference value for use in controlling that relative motion during the data reread process using a track reference value difference stored in at least one track of at least one data group that is to be reread during the data reread process and a track reference value that was used in controlling that relative rotation during the preceding data read process.

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UK Intellectual Property Office Search Report dated May 30, 2007, UK App. No. GB0701811.2, 3 pp.

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