Multichannel digital recording system with multi-user detection
US6826140B2 · kind B2 · utility
118Cited by
35References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Dec 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03331
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A processing scheme for digital storage media using multi-user detection to separate tracks of data or remove interference from neighboring tracks. In one embodiment, data is written on a plurality of tracks positioned sufficiently close together so that multiple tracks are detected simultaneously by the read access sensor. Upon scanning the surface for data, the read element simultaneously receives the data signals from a plurality of tracks. Joint detection signal processing resolves the interference and data bits from the multiple sensed tracks, enabling closer packing of data with minimal guard space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.