Magnetic recording system having spiral tracks
US5583712A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | May 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording device for recording data onto a magnetic disk in the form of a spiral track. A spindle motor rotates the disk about a pivot point. A transducer writes the data onto the disk as a digital bit stream. The transducer is positioned radially over the disk by a servomechanism. As the servomechanism positions the transducer radially across the spinning disk relative to the rotation of the disk, a spiral track is described upon the disk. A dedicated or an embedded servo system can be utilized with the spiral data track. Furthermore, the servo tracks can take the form of either concentric circles or a spiral. By recording data as a spiral rather than as concentric circles, cumulative seek time delays are minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.