Method for reducing variation range of skew angle of magnetic writing pole and magnetic writing pole using the method
US8830620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2013 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Dec 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for reducing skew angle variation range in a shingled magnetic recording system, the method including the following steps: 1) determining whether a starting magnetic track is in an inner recording zone, if yes, the process proceeds to step (2), otherwise the process proceeds to step (4); 2) using an inner writing corner to start shingled magnetic recording at a starting track; 3) using a shingled magnetic method to write rest magnetic tracks sequentially by the inner writing corner, keeping a writing pole moving in a direction from an inner recording zone to an outer recording zone; 4) determining whether the starting magnetic track is in the outer recording zone; 5) using an outer writing corner to start shingled magnetic recording at the starting track; and 6) using the shingled magnetic method to write the rest magnetic tracks sequentially by the outer writing corner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.