Techniques for using a general query to circumvent specific query response failure in an IGMP system
US8874796B1 · kind B1 · utility
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25References
17Claims
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Key dates
| Filing date | Nov 29, 2007 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6405
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Flexibility of handling of multicast information using an Internet Group Management Protocol (IGMP) is improved by overcoming failures to respond to group specific queries. Such failures occur when heterogenous host devices are used on a common network. When a failure to respond to a group specific query is experienced, a general query is used to obtain information that was not provided by the group specific query.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.