Satellite continuous coverage constellations
US4809935A · kind A · utility
48Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1985 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Jul 31, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64G1/242
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Satellite hemispheric and global coverage with a minimum number of satellites includes a three-satellite elliptic orbit constellation covering the entire Northern (or Southern) Hemisphere and a four-satellite constellation giving continuous global coverage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.