Data storage device employing multi-mode sensing circuitry for multiple head sensor elements
US10056098B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2017 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Nov 29, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2508
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising a head actuated over a disk, wherein the head comprises a first sensor element and a second sensor element. When configured into a first single-ended mode, a bias signal is applied to the first sensor element to generate a first single-ended output signal based on a response of the first sensor element, and when configured into a second single-ended mode, the bias signal is applied to the second sensor element to generate a second single-ended output signal based on a response of the first sensor element. When configured into a differential mode, the bias signal is concurrently applied to the first sensor element and the second sensor element to generate a differential output signal based on a response of the first sensor element and the second sensor element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.