Predictive diagnosis of a data read system
AssigneeHewlett-Packard Development Company, L.P.
InventorsRafel Jibry, Peter Arthur Walsh
Life of this patent
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Abstract
A data read system comprising a read channel for processing a signal, and a diagnostic controller in communication with the read channel. The diagnostic controller is configured to measure at least one metric of the read channel during processing of a signal containing unknown data. The measured metric is then compared against a stored nominal metric and a warning is generated in response to a result of the comparison. In particular, the warning is generated only if the difference between the measured metric and the stored nominal metric exceeds a threshold.
Claims21
A method of diagnosing a data read system comprising a read channel for processing a signal, the method comprising the steps of:
- measuring at least one metric of the read channel during processing of a signal containing unknown data;
- comparing the at least one metric against at least one stored nominal metric;
- diagnosing whether there is a potential problem with the data read system based on the comparison;
- diagnosing whether there is a potential problem with a data medium based on the comparison;
- and
- generating a warning in response to a result of the comparison.
A data read system comprising a read channel for processing a signal, and a diagnostic controller in communication with the read channel, wherein the diagnostic controller is configured to:
- measure at least one metric of the read channel during processing of a signal containing unknown data;
- compare the measured at least one metric against at least one stored nominal metric;
- diagnose whether there is a potential problem with the data read system based on the comparison;
- diagnose whether there is a potential problem with a data medium based on the comparison;
- and
- generate a warning in response to a result of the comparison.
Means for diagnosing a data read system comprising a read channel for processing a signal, the means comprising:
- means for measuring at least one metric of the read channel during processing of a signal containing unknown data;
- means for comparing the at least one metric against at least one stored nominal metric;
- means for diagnosing whether there is a potential problem with the data read system based on the comparison;
- means for diagnosing whether there is a potential problem with a data medium based on the comparison;
- and
- means for generating a warning in response to a result of the comparison.
Dependencies are inferred from the claim text.