Audio-visual file receiving method

A technology for receiving files and audiovisual files, applied to distribution servers, equipment for realizing the method, and a method for files, which can solve the problems of restricting service deployment and excessive consumption of network resources, etc.
CN101300778BInactive Publication Date: 2013-10-16THOMSON LICENSING SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THOMSON LICENSING SA
Publication Date
2013-10-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a method for receiving audiovisual programs sent by a server to at least two reception devices. Initially, a first user requests a document from the server that establishes a unicast stream to download said document. Then, a second user requests to receive the same document, even truncated by a part. The server studies the proposal and possibly, for a lower price, agrees to the download. The server then switches the broadcast of the document from a unicast stream to a multicast stream, the first and second devices receiving said document via the same multicast stream. The invention also relates to a device for receiving audiovisual content and a server for implementing the method.
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Description

technical background

[0001] The invention relates to a method for receiving audio and / or audiovisual files at the request of a user, a distribution server, and a device implementing the method. Background technique

[0002] Broadcasting audiovisual content to multiple users is becoming more and more common today. Various solutions exist for this, such as broadcasting via terrestrial or satellite networks or via data networks. These solutions are currently in full swing, especially with the deployment of numerous networks accessing the Internet at high bit rates via DSL (Digital Subscriber Line).

[0003] The broadcasting of live programs over these broadcast networks without the need to query users for features is a mature and well-supported technology.

[0004] The network environment of the present invention is an environment of an audio-visual server that can provide audio-visual files on demand, and any device (for example, domestic) that can display audio-visual file...

Claims

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