Method for determining wear of a data storage medium and...

Details Method for determining wear of a data storage medium and... Method for determining wear of a data storage medium and...

2007-11-21

2010-12-14

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

Reexamination Certificate

active

07852582

ABSTRACT:
The invention relates to a method of determining wear of a data storage medium actively by performing a read operation on the data storage medium and detecting a read signal, comparing the read signal to at least one wear threshold; and determining a wear level of an area of the data storage medium based on the comparison. The wear threshold is lower than a detection threshold, wherein the detection of the read signal above the detection threshold indicates the presence of stored data.

REFERENCES:
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patent: 2003/0218960 (2003-11-01), Albrecht et al.
patent: 2004/0047275 (2004-03-01), Cherubini et al.
patent: 2007/0294490 (2007-12-01), Freitas et al.
E. Eleftheriou et al., Millipede—MEMS-based Scanning-Probe Data Storage System, IEEE Transactons on Magnetics, Mar. 2003, pp. 938-945, vol. 39, No. 2.

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