Ground based beam forming utilizing synchronized code division multiplexing
US5903549A · kind A · utility
80Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Feb 21, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/216
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method permitting beam forming at a ground station for providing a coherent and stable uplink signal to a satellite system employing multiple spot beams by combining orthogonal synchronous code division multiplex codes and pseudo-random spreading codes with an information signal to implement a satellite feeder uplink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.