Interactive satellite broadcast system
US6356539B1 · kind B1 · utility
52Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1998 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Dec 10, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6193
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method of providing an interactive broadcast service, broadcast signals are transmitted via a wideband satellite link to end users. Return signals are received from the users transmitted over a narrowband satellite link separate from the first link. The return signals allow users of the service to send commands back to the base station to request specific services.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.