Systems and methods for recovering information from a defective medium
US8411537B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2009 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jun 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2512
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Various embodiments of the present invention provide systems and methods for data regeneration. For example, a system for regenerating data is disclosed. The system includes a media defect detector that is operable to identify a potential media defect associated with a medium from which an input signal is derived, an attenuation amplitude detector that generates an attenuation factor, and a data detector. The data detector includes a first data path and a second data path. The first data path includes a bank of two or more selectable noise prediction filters and the second data path includes a fixed noise prediction filter and the attenuation factor. The data detector processes a derivative of the input signal using the second data path when the potential media defect is indicated, and processes the derivative of the input signal using the first data path when a media defect is not indicated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.