Interactive cable television system with frame server
US6205582A · kind A · utility
315Cited by
89References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1998 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Sep 18, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4788
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an interactive cable system having a plurality of assignable interactive controllers which communicate with subscribers through an information service distribution network, a frame server is provided for interfacing with a plurality of subscribers. A system manager assigns either the frame server or one of the plurality of interactive controllers to subscribers requesting interactive service. The frame server preferably delivers interactive pages which need only be transmitted intermittently, such as still frame images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.