ATM packet demultiplexer for use in full service network having distributed architecture
US5544161A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Mar 28, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5672
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video distribution network having an architecture that distributes video services over a greater serving area. The broadcast consolidation section receives broadband data from a plurality of information providers, preferably as compressed, digital signals using asynchronous transfer mode (ATM) transport. The broadcast consolidation section combines the ATM streams from different information providers and outputs a consolidated signal onto a transport ring. The broadcast ring supplies the consolidated broadcast edit to a plurality of video network hubs, each of which downloads the consolidated broadcast data, converts the consolidated broadcast data to MPEG data on an RF carrier, and combines the RF signal with other RF signals before transmission by optical fiber to a plurality of local video access node. Each local video access node combines the RF broadcast data from the corresponding video access node with downstream IMTV traffic supplied by an ATM backbone subnetwork. The combined RF signals are output from the local video access nodes to the access of network servicing these subscribers. ATM demultiplexers in the video network hubs and the local video access nodes perform MP…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.