Optics: measuring and testing – Dimension
Reexamination Certificate
2006-04-24
2009-12-22
Toatley, Jr., Gregory J (Department: 2877)
Optics: measuring and testing
Dimension
C356S237100, C356S623000, C356S636000, C359S007000, C359S011000, C359S028000, C369S112010, C369S053210
Reexamination Certificate
active
07636171
ABSTRACT:
A method is provided for monitoring degradation of a data storage medium. Multiple reactive elements are provided in the data storage medium. Properties of each one of these elements is determined, prior or subsequent to data being stored in the medium, to generate a baseline map of the medium. Updated properties of at least one of the elements are determined in order to generate an updated map of the medium. A determination can then be made as to whether degradation of the medium has occurred by comparing the baseline map to the updated map.
REFERENCES:
patent: 7295356 (2007-11-01), King
patent: 2006/0104172 (2006-05-01), Grampel et al.
Leonhardt Michael L.
Sigel Christophe N.
Alli Iyabo S
Brooks & Kushman P.C.
Storage Technology Corporation
Toatley Jr. Gregory J
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