Interleaved dibit detection for direct access storage device (DASD)
US6222691A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Sep 11, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59688
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for detecting servo data and an interleaved dibit detection apparatus are provided for servo data detection in a direct access storage device. The interleaved dibit detection apparatus includes a new dibit threshold detector for detecting a predefined threshold level of a new interleave servo signal and providing a new detected dibit output. An old dibit threshold detector detects the predefined threshold level of an old interleave servo signal and provides an old detected dibit output. A combining function coupled to the new dibit threshold detector and the old dibit threshold detector provides a combined detected dibit output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.