Coarse and fine control for position servo
US4006394A · kind A · utility
30Cited by
10References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1974 |
| Grant date | Feb 1, 1977 |
| Priority date | — |
| Expiry date | Nov 18, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/42171
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A closed loop servo system for positioning a head relative to a magnetic recording element wherein track crossings are normally utilized to generate a feedback signal to the servo for positioning the head and wherein for a precise indication of head positioning between track crossings the velocity of movement of the head is integrated and fed into the servo system to provide a fine position signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.