Method and system for recording streams
US9038116B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2010 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Dec 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/2389
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of delivering a live stream is implemented within a content delivery network (CDN) and includes the high level functions of recording the stream using a recording tier, and playing the stream using a player tier. The step of recording the stream includes a set of sub-steps that begins when the stream is received at a CDN entry point in a source format. The stream is then converted into an intermediate format (IF), which is an internal format for delivering the stream within the CDN and comprises a stream manifest, a set of one or more fragment indexes (FI), and a set of IF fragments. The player process begins when a requesting client is associated with a CDN HTTP proxy. In response to receipt at the HTTP proxy of a request for the stream or a portion thereof, the HTTP proxy retrieves (either from the archive or the data store) the stream manifest and at least one fragment index. Using the fragment index, the IF fragments are retrieved to the HTTP proxy, converted to a target format, and then served in response to the client request. The source format may be the same or different from the target format. Preferably, all fragments are accessed, cached and served by the HTTP p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.