Amplitude detection for full band servo verification
US6738210B1 · kind B1 · utility
5Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2001 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Feb 15, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/584
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides techniques for verifying that a servo pattern has been properly recorded. For example, the amplitude of a signal corresponding to magnetic servo patterns can be detected and then compared to a threshold to determine whether the servo patterns were properly recorded. The signal strength may be determined for a servo band that includes multiple servo tracks. To enable this determination, a magnetic head may be designed to have sufficient width to enable the head to detect magnetic signal strength corresponding to more than one servo track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.