Method for variable zone layout for information storage disk drive
US5870237A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1996 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Jan 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording system utilizing a plurality of surfaces on a magnetic recording disk with recording zone boundaries established on the respective surfaces of the disk based on the performance characteristic of the read/write head associated with the surface. Since the zone boundaries are established uniquely for the performance of each head rather than by defining the boundaries of all zones for all surfaces in advance based on an assumed performance characteristic of the heads, the zone boundaries on one surface of the disk will not necessarily align with the zone boundaries on another surface of the disk. Similarly, when a plurality of disks are utilized, the zone boundaries will not necessarily be aligned. Improved utilization of the available stroke on the disk drive permits further improvement in recording density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.