Communication system and apparatus with synchronous orthogonal coding
US6778102B1 · kind B1 · utility
18Cited by
12References
21Claims
0Family size
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Key dates
| Filing date | Jun 9, 2000 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Jul 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/005
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Code-multiplexed communication systems, apparatus, and methods include coders that encode and decode data streams with synchronous, substantially orthogonal codes. Code-multiplexed communications systems encode data signals with such codes to control levels of decoding artifacts such as cross-talk at times or time intervals in which data is recovered. Some systems are based on synchronous, orthogonal codes that are obtained from complex orthogonal vectors. In an example, a three-level temporal-phase code that includes nine code chips and encodes and decodes data signals is a seven-channel communication system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.