Reducing network bandwidth usage in a distributed video editing system
US9530451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2013 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Jan 17, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/854
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed for reducing the amount of network bandwidth used by a distributed video editing system. A server dynamically chooses from among several encoding options, depending on the context and network conditions. The server makes every attempt to transmit a given video frame only once over the network. Depending on network performance, the quality of the transmitted video may vary. A frame identification technique is used to improve efficiency to avoid duplication of rendering work. On the client, the frame identity is used by the client to cache the frames individually, at varying qualities. These frames are cached on the client indefinitely. When the client prepares to play a frame, it examines its local cache of frames and chooses either a local cached frame or requests a remote frame at a different quality, based on the context.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.