| US 7,613,975 B2 | ||
| Predictive diagnosis of a data read system | ||
| Rafel Jibry, Bristol (United Kingdom); and Peter Arthur Walsh, Somerset (United Kingdom) | ||
| Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US) | ||
| Filed on Aug. 31, 2005, as Appl. No. 11/217,000. | ||
| Claims priority of application No. 0502176.1 (GB), filed on Feb. 03, 2005. | ||
| Prior Publication US 2006/0184859 A1, Aug. 17, 2006 | ||
| Int. Cl. H04L 1/00 (2006.01); G11C 29/00 (2006.01); G08C 25/00 (2006.01); G06F 11/30 (2006.01); G11B 27/36 (2006.01); G11B 5/09 (2006.01); G11B 11/00 (2006.01) | ||
| U.S. Cl. 714—746 [714/719; 714/799; 360/31; 360/48; 360/53; 702/183; 702/185; 369/53.12; 369/53.15; 369/53.35] | 21 Claims |
| 1. 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.
|