Method for determining longitudinal position on a magnetic tape having an embedded position count field
US5920439A · kind A · utility
3Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1997 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Feb 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for determining the longitudinal position of a length of magnetic tape with respect to the tape head. A data field on each frame of the servo stripe includes a digital one or a zero. An adjacent series of data fields are arranged in a predetermined sequence defining synchronization and position count fields. Identifying the position count field allows the tape controller to accurately determine where, along the length of the tape, the tape head is currently positioned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.