Method and apparatus for controlling read and write operations in a storage device
US6424476B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1998 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Jun 19, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hard disk drive (HDD) having a control unit that reduces the number of control signals required to control the operation of the channel and amplifier. The HDD includes a control unit for controlling reading or writing data from or to a magnetic head, a preamplifier for amplifying the data from the magnetic head, and a channel module which is controlled by the control unit. The channel module converts digital data signals to data write signals and also converts analog signals from the preamplifier to digital signals. Control information is transmitted to the channel module over the data bus which is used to transmit or receive data read/write signals. The channel module performs control in response to transmitted control information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.