DASH client and receiver with playback rate selection
US9386058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2013 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Aug 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/64769
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A client device presents streaming media and includes a stream manager, a request accelerator, and a source component coupled to the stream manager and the request accelerator for determining which requests to make. A rate selection process can make rate decisions so that the buffer is filled when it is low, avoiding erratically changing rates and can choose the correct steady rate quickly. Multimedia download strategies can be used for HTTP that allow for accurate rate estimations, achieving link capacity even if network delays and packet loss rates are high, achieving timely delivery of the stream, and achieving relatively steady download rates with little short term variability. A receiver might use multiple HTTP connections, decompose media requests into smaller chunk requests, synchronize the connections using TCP flow control mechanisms, and request data in bursts. In addition, the receiver might use an HTTP pipelining process to keep the connections busy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.