Access subnetwork controller for video dial tone networks
US5740075A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1995 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Mar 28, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5642
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An access subnetwork provides broadcast access transport as well as selective allocation of resources for interactive communications sessions dedicated to individual end users. The access subnetwork has specified broadcast and interactive service interfaces, both for communications to and from an information provider and for communication to and from customer premises equipment. An Access Subnetwork Controller provides a single point of control contact within the access subnetwork. Any other subnetwork (typically an element of a higher level control subnetwork) needing a control function in the access subnetwork always sends the request for that function to the Access Subnetwork Controller. The primary responsibility of the Access Subnetwork Controller is to control resources, provide requested resources and monitor the use of resources within in the realm of the access subnetwork. The Access Subnetwork Controller functions essentially in a similar manner to provide every type of requested connection, whether the connection is for broadcast, pay-per-view or IMTV. Specifically, the Access Subnetwork Controller reserves and enables access subnetwork resources for a particular user co…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.