Spread spectrum communication system using a quasi-geostationary satellite
US7539456B2 · kind B2 · utility
5Cited by
21References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2003 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | May 31, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18569
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention refers to a satellite communications system with a mobile user terminal. In order to provide a satellite communications system which enables communication with a mobile user terminal via conventional communication satellites on any area of interest on earth, a quasi-geostationary satellite is operated in an inclined orbit and sends a spread downlink signal s′ (t) to said area of interest on earth to be received and despreaded by a mobile user terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.