Reducing fetching load on cache servers in adaptive streaming
US8812621B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Dec 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8456
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method that receives at a cache server device a request from a client device for a first representation of a content chunk; determines whether the first representation is available at the cache server device; responsive to determining that the first representation is available at the cache server device, provides the first representation to the client device; responsive to determining that the first representation is unavailable at the cache server device, determines whether a congestion-like condition is present in an upstream network; and responsive to determining that the congestion-like condition is present in the upstream network, provides a second representation of the content chunk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.