System for interactively distributing information services
Abstract
An interactive information distribution system includes service provider equipment for generating an information stream that is coupled to an information channel and transmitted to subscriber equipment. The service provider also generates a command signal that is coupled to a command channel and transmitted to the subscriber equipment. The service provider also receives information manipulation requests from the subscriber via a back channel. A communication network supporting the information channel, command channel and back channel is coupled between the service provider equipment and the subscriber equipment.
Term
Term ended
Projected expiry passed 4 December 2017, 8.8 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
3 priority claims, no other members on record
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 3448997 | United States of America | P | |
| 98471097 | United States of America | A | |
| 9722631 | United States of America | W |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Ceased as to paragraph 5 lit. 3 law introducing patent treatiesCeasedRER | RER |
Numbers
- Application
- 97953131
Titles2
- German
- SYSTEM ZUM INTERAKTIVEN VERTEILEN VON INFORMATIONSDIENSTEN
- English
- SYSTEM FOR INTERACTIVE DISTRIBUTION OF INFORMATION SERVICES
Classification
- CPC, 1
- H04N7/17336
- IPC, 1
- H04N7 173