Method and system for bit prediction using a multi-pixel detector
US8233368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Nov 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/131
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present techniques provide methods and systems for more reliable reading of optical data disks. In embodiments, a multi-pixel detector that is segmented into multiple areas, or detector segments, may be used to detect a pattern in the light reflected from an optical data disk. The pattern may include light scattered from a single bit that may be under a center detector, as well as light scattered from proximate bits. The detector system may then combine the quantized values from each of the detector segments mathematically to determine the presence or absence of a bit or bits of data. The mathematical combination may also use data that is known about the status of adjacent data bits (such as previously read bits, or bit patterns which are allowed or not allowed by specific data encoding schemes) to improve the accuracy of the bit prediction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.