Method for transferring operational data between stations during a disk format process
US5917669A · kind A · utility
8Cited by
11References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1996 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Aug 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1217
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Inserting operational data onto a magnetic disk allows information to be transferred from a servowriter station to a verifier station. This operational data allows disk specific operational data to follow the disk without separate means for attaching data to each disk. The servowriters, which cannot write information to disks at the data sector frequency, inserts the operational data into selected greycodes in the servo sectors. When the disks are verified, the operational data may be moved from the servo sectors to the data sector in the Z-tracks for more permanent storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.