Cylinder crossing detection circuit for disc drive or the like
US4516178A · kind A · utility
10Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1982 |
| Grant date | May 7, 1985 |
| Priority date | — |
| Expiry date | Sep 15, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5552
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved technique for the counting of servo tracks in a position servo system wherein a single pulse is produced upon each crossing of a reference level by the servo data demodulation signal, the width of which is determined by the velocity of the servo data head relative to the medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.