Device for limiting current in a sensor
US7292400B2 · kind B2 · utility
8Cited by
32References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 2001 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | May 31, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A read/write device for a disk drive is disclosed. The read/write device includes a pre-amplifier and a recording head. The read/write device also includes a write signal path between the pre-amplifier and the recording head. The write signal path includes a write current. The read/write device also includes a read signal path between the pre-amplifier and the recording head. The read signal path includes an induced current related to the write current. The read/write device also includes a shunt path in the pre-amplifier to draw a part of the induced current from the read signal path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.