Electronic head adjust system for removable magnetic discs
US3953889A · kind A · utility
7Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1974 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Oct 24, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59627
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Means for making field alignment of transducers with reference tracks prerecorded on a master disc comprising a source of regulated voltage, a separate potentiometer associated with each selected transducer, a separate switch coupling each potentiometer to a summing junction of a positioner servo-control circuit common to all transducers, and means responsive to transducer selecting signals for turning on the coupling switch of the associated potentiometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.