Device and method for storing and retrieving original and redundant data
US6061194A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1997 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Apr 15, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1258
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A storage device is described for reading data from a hard disk drive wherein delays due to rotational latency are substantially reduced. The storage device includes a platter having a substantially planar annular surface with a geometrical center. On the platter are a plurality of generally arcuate concentric tracks. Each of the tracks is divided into a plurality of sectors that are radially outwardly disposed from the geometrical center of the platter and are bounded by radii extending from the geometrical center. Original data is written on at least one of the sectors. Further, a copy of the original data is maintained at a fixed azimuth angle from the original data during rotation of the platter about the center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.