Flaw detection in disk drive using significant samples of...

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification

Reexamination Certificate

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Reexamination Certificate

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09848089

ABSTRACT:
Detecting flaws in a disk drive includes sampling a read signal provided by reading a data pattern from a disk to obtain samples, obtaining significant samples from the samples, deriving a value from the significant samples, and reporting a flaw if a comparison between the derived value and a threshold value is unacceptable.

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