High frequency probing for network bandwidth estimation using video data in real-time video conference
US11652722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2021 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Jun 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44209
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The embodiments described herein can dynamically adjust timing of network bandwidth estimations by adjusting a target frequency for sending probing sequences to one or more receivers of content. The receivers receive these probing sequences from a transmitter and respond to the transmitter with network bandwidth estimations. In one embodiment, the probing sequences can use the content itself to create the probing sequences. The embodiments can be used in video conferencing applications to control how a transmitter of content can adjust transmissions based upon the network bandwidth estimations. In one embodiment, a policy can be used at a transmitter to begin a video transmission with a high frequency target for sending probing sequences (with, e.g., smaller length probing sequences) and transition to a lower frequency target (with, e.g., longer length probing sequences) when network bandwidth deteriorates and then return to the higher frequency target when the network bandwidth improves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.