Predictive read-write inhibit decision using fuzzy logic
US5270880A · kind A · utility
26Cited by
5References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 10, 1992 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Apr 10, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for predicting and avoiding data errors by predicting disk drive read-write inhibit requirements in response to at least two parameters including a head position error and velocity with respect to the track centerline. A write or read inhibit signal is generated in response to selected combinations of these parameters to minimize soft read errors arising from track misregistration and to avoid hard errors arising from overwriting data recorded in an adjacent track. The read and write inhibit strategy is described as a pair of linguistic control rules suitable for implementation in a Fuzzy Logic Controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.