Method and apparatus for detecting proximity contact between a transducer and a medium
US9202495B2 · kind B2 · utility
1Cited by
30References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2007 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Aug 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/556
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for positioning a transducer relative to a track of a data storage medium and inducing lateral modulation of transducer the relative to the track. An element of the transducer is actuated toward the storage medium during the lateral modulation, and atomic interaction is detected between the element and the storage medium because of a change in a response to the lateral modulation of the transducer due to the atomic interaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.