Communications satellite router-formatter
US5930708A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1996 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Mar 21, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/1856
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A local telecommunications network is provided for satellite based telecommunications. The network 10 includes multiple handsets 18-22, 50 and 54 which communicate directly with ground stations 14 and 16. The ground stations communicate with an overhead satellite 12 through a satellite telecommunications uplink. The ground stations include a router for determining whether outgoing calls are directed to a destination handset located within or outside a predefined local geographic cell 30 and 32 for the corresponding ground station 14 and 16. If the destination handset is located outside the local cell of the originating handset, the ground station passes the call to the overhead satellite 12 to establish a satellite telecommunications link. However, if the destination handset 50 is located within the same local cell 32 as the originating handset 22, then the router 16 establishes a direct link between the handsets 22 and 50 without establishing a satellite telecommunications link 26.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.