Method of authenticating a channel authorization using a network access device in a combined broadcasting and communication system
US7237111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2003 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Dec 10, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/472
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of authenticating a channel authorization using a NAD (Network Access Device) in a combined broadcasting and communication system is provided. The method can process an authorization of a user independently from an AAA (Authentication, Authorization and Accounting) server. The system includes a plurality of STBs (Set Top Boxes) for receiving a broadcasting, an OLT (Optical Line Terminal)/ONU (Optical Network Unit) for transferring a broadcasting stream to the STBs, and the AAA server for a channel authentication. In operation, the NAD determines whether to switch the broadcasting stream to the STBs in the ONU, and the NAD is initialized by receiving and storing authentication information of the channel authorization from the AAA server when booting the NAD. Next, the NAD performs an authentication using the stored authentication information of the channel authorization in accordance with a channel request from the STB and then switches the requested channel when approved. The authentication information is updated and stored in accordance with an update signal of the authentication information of the channel authorization from the AAA server.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.