Disk-based storage device having read channel memory that is selectively accessible to disk controller
US8711509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Jul 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/415
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hard disk drive or other disk-based storage device comprises a storage disk, a read/write head configured to read data from and write data to the storage disk, and control circuitry coupled to the read/write head and configured to process data received from and supplied to the read/write head and to control positioning of the read/write head relative to the storage disk. The control circuitry comprises a disk controller and read channel circuitry, with the read channel circuitry comprising a read channel memory. The control circuitry is further configured to selectively permit the disk controller to access the read channel memory. For example, the disk controller may be permitted to access the read channel memory only when the read channel circuitry is not performing a read operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.