Method and apparatus for prompting a reverse channel response from receiver in a digital broadcast system
US6686880B1 · kind B1 · utility
149Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2000 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates generally to a digital broadcast system and receivers therein which are configured to allow the use of a reverse channel for transmitting responses to broadcast messages. The digital broadcast system is configured to receive requests for information from a mobile platform device (e.g., a GPS receiver) and broadcast information request messages. The receivers are configured to receive a broadcast information request message and communicate with a telematics-enabled device in a mobile platform such as a cellular telephone to initiate a transmission of a response message therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.