Device for locating a desired information track
US4397009A · kind A · utility
10Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1980 |
| Grant date | Aug 2, 1983 |
| Priority date | — |
| Expiry date | Nov 12, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/08535
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for locating a desired information track on an information carrier, after an information transducer has been passed over the information tracks on the carrier in the transverse direction in response to a starting pulse, which utilizes a control signal that is derived from the alternating voltage thus obtained, to keep the relative velocity of the transducer relative to the information tracks constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.