Method of optimizing operation of disk drive
US5408367A · kind A · utility
47Cited by
14References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1993 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Sep 20, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for individually evaluating a head and disk combination to selectively optimize and calibrate the read and write systems thereof in a short time is achieved by deliberately positioning the head off the track center-line by introducing known offset into the track position servo system. This results in reducing the data signal strength proportional to the offset while noise remains at a relatively constant level, thereby reducing the signal to noise ratio and increasing the error rate in a systematic way.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.