Disk drive with multiple read-write heads
US9728212B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2016 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Jun 23, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4969
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The embodiments of the invention improve the traditional disk drives by eliminating the mechanical actuator assembly that moves the read-write head attached to the actuator assembly, and replacing it with multiple read-write heads mounted over one or more rotating platters. The number of the read-write heads is preferably sufficiently large so that the read-write heads cover all tracks on the one or more rotating platters. In one embodiment, a disk includes a rotatable platter, a central spindle to rotate the rotatable platter arounds an axis, an electric motor to drive the central spindle, and multiple read-write heads mounted over the rotatable platter. In one embodiment, the platter includes multiple tracks arranged in form of concentric circles, where each of the read-write heads performs read-write operations on one of the tracks, and each track is assigned at least one of the multiple read-write heads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.