Access control enhancements for delivery of video and other services
US6970461B2 · kind B2 · utility
37Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2000 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Nov 7, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/1859
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of providing secure multicast over a local access network by means of a network access unit having a channel request vetting function and a permitted channel list. Channel requests from a subscriber are vetted with respect to the permitted channel list and forwarded only if permitted. The permitted list may be dynamically updated under headend control to allow users to subscribe to, and unsubscribe from, services upon request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.