System and method for dynamic bandwidth allocation for videoconferencing in lossy packet switched networks
US7782775B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Nov 21, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Jul 20, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/65
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for adjusting a video bit rate (VBR) over a network includes reducing the VBR if the network incurs a packet loss (PL) that is greater than a PL threshold increasing the VBR if the PL is less than or equal to the PL threshold over a maximum integer number of time intervals and increasing the maximum integer number of time intervals if the PL is greater than the packet loss threshold at the increased VBR. In addition, the VBR is increased over consecutive time intervals until a maximum video bit rate is restored, if the PL over each consecutive time interval is less than or equal to the packet loss threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.