Writing and reading data having multiple access patterns on tape media
US9086809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2014 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Sep 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/107
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Data is recorded such that the positions of data will be aligned in a traveling direction and a width direction of the storage medium. The medium travels in the traveling direction from a first to a second position as a certain wrap of a group of plural files in a first physical range between the first and the second positions. A head shifts from the certain wrap to another wrap in the width direction of the medium. The medium travels in the traveling direction from a third to a fourth position as the other wrap of a group of plural files in a second physical range between the third and the fourth positions. The plural files in groups on the certain wrap and the other wrap may be written in reverse order to each other after being once stored in a buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.