Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites
US5278863A · kind A · utility
62Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1992 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Apr 10, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/185
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
High quality audio broadcasts at radio frequencies to mobile receivers at or near the earth's surface are provided by substantially simultaneous transmission of the same signal from two geosynchronous, spatially-separated satellites on the geosynchronous orbit which virtually eliminates multipath fading and foliage attenuation and thereby permits the use of a low-cost space segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.