Method and arrangement for positioning a magnetic head to various tracks of a magnetic tape
US4679104A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1986 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Jan 16, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5508
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For exact positioning of a magnetic head to various tracks of a magnetic tape by use of a stepping motor, a plurality of motor control steps required in order to position the magnetic head to the various tracks proceeding from a reference position are identified. For the compensation of manufacturing tolerances, individual positional values are identified for every magnetic tape recorder. These positional values indicate a precise position of the magnetic head on the center of the respective track. The positional values are stored in a read-only memory, or are formed by addition of stored standard values and correction values stored in a read-only memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.