Method and apparatus for reading or writing on tape using a servo positioned multiple channel head
US5008765A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Jan 17, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5508
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for reading or writing data on a tape which has a plurality of data tracks and at least a first dedicated servo track. A multiple channel head with at least three channels, each having at least one element for reading or writing, is used to access the tracks on the tape. The head is moved proximate one of a plurality of predetermined positions. The channels are located so that, in any one predetermined position of the head, one channel accesses the center of a dedicated servo track on the tape and at least two other channels will access the center of distinct data tracks. Depending on the predetermined position of the head, different channels will access a dedicated servo track. The position information on a dedicated servo track is used to move the head to one of the predetermined positions once the head has been moved proximate that predetermined position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.