Multicast control
US7961750B2 · kind B2 · utility
2Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2006 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Nov 5, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and arrangement for optimizing bandwidth usage in a Multicast Services Control System (MSCS), which transports digital information in a multicast stream from a broadband network to a Set Top Box (STB) connected to a terminal TV. When the terminal TV is disabled, and can no longer utilize the multicast stream, the terminal TV sends a terminal status signal to the STB indicating deactivation of the terminal TV. In response, the STB sends an IGMP leave report signal to the broadband network, which then ceases its transmission of the multicast stream to the STB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.