Coding for optical storage systems with multiple reader heads and multiple optical disks
US8107333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2010 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Apr 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2537
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are methods and systems of encoding and decoding techniques in an optical storage system having a multi-head detector. In one embodiment, source data may be encoded using error correction coding (e.g., turbo coding) techniques, and the encoded data may be interleaved and distributed to more than one detector head of the multi-head detector. Data recorded in an optical disc may be retrieved by the multi-head detector, and a read data from more than one detector head may be concurrently decoded to retrieve estimates of the original information in the source data. Further, more than one encoder/decoder may be used, and each encoder/decoder may encode or decode data from multiple data heads. Some embodiments also include replicating multiple discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.