Video dial tone network synchronization
US5790171A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1995 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5674
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital communications system efficiently transports communications data in ATM format from a plurality of information providers to a plurality of users, maximizing transport of the supply of ATM streams to distribution paths in a network. A video tone dial network arrangement synchronizes the timing among various VIP source multiplexers and super trunk transmitters. ATM streams are transported through an ATM backbone network and a local loop distribution network. A serving node, or host digital terminal, of the local loop distribution network, supplies the bit stream carrying ATM cells for a video program to the user terminal and provides information necessary to permit the terminal to decode the data from the ATM cells carrying the program information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.