Utilization of tape head electronic lapping guides (ELG's) as servo format verifiers
US7016143B2 · kind B2 · utility
9Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2004 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Aug 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49048
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention uses Electronic Lapping Guides (ELG's), which are patterned on every tape head, as servo format verifiers. This is implemented by specifically placing the ELG's at the appropriate locations to match the servo signal track locations and thus be usable to verify the servo format patterns on the formatted tape. According to another aspect of the present invention, tape head components which have faulty read sensors, servo sensors, or write elements which have valid ELG's may be used for the servo format verification purpose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.