System, method, and computer-readable medium for synchronizing multicast customized content to facilitate DSLAM complexity reduction
US7954123B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Sep 26, 2007 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Nov 23, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/611
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, computer readable medium, and system for advertisement and content distribution are provided. Supplementary content is synchronized with advertisement slots, or commercial intervals, of a program stream and distributed via separate multicast group addresses. The program content is distributed via an alternative multicast group address during commercial intervals. Ports associated with respective users are mapped or otherwise associated with multiple multicast group addresses in a forwarding table thereby allowing distribution of supplementary content, or alternatively the program content, during commercial intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.