Per-call quality of service monitor for multimedia communications system
US7058048B2 · kind B2 · utility
83Cited by
9References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2004 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Mar 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A subjective quality monitoring system for packet based multimedia signal transmission systems which determines, during more than one interval of a single call, the level of one or more impairments and determines the effect of said one or more impairments on the estimated subjective quality of said multimedia signal. The quality monitoring system comprises a plurality of quality monitoring functions located at the multimedia to packet conversion points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.