Peer-to-peer downloading method, video equipment and content transmission method

A video device and content technology, applied in the field of Internet applications, to achieve the effect of accelerating download speed, optimizing download priority, and reducing required space

Inactive Publication Date: 2011-09-21
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The known example [CN101227590A] provides a media file application for audio and video on demand, according to the characteristics of its application, the priority order of segment downloads in P2P downloads is dynamically adjusted and downloaded, which solves the problem that ordinary P2P cannot meet the actual demand for on-demand services Some deficiencies, effectively ensuring the real-time and smooth playback of media files in the on-demand business

Method used

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  • Peer-to-peer downloading method, video equipment and content transmission method
  • Peer-to-peer downloading method, video equipment and content transmission method
  • Peer-to-peer downloading method, video equipment and content transmission method

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Embodiment Construction

[0038] The present invention is based on the existing basic principle of P2P, that is, divides the target file into segments, and reduces the download unit from the file as the unit to the segment as the unit for downloading. This method can realize downloading different fragments from multiple content owners for a file at the same time, and realizes a one-to-many downloading mode, thus improving the downloading speed.

[0039] BT download is one of the foundations of the present invention, first of all we briefly introduce its principle. In BT download, as the key index information of file fragmentation, the role of seed (seed) file is very important, which stipulates the file information, file name, directory name, length, etc. of the target file to be downloaded, and then specifies the target The fragmentation status of the file (such as the segment size piece_length) and the check code (hash value) of each segment are used to verify the integrity and correctness of the dow...

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Abstract

The invention provides a downloading method, which relates to the related technical fields of Internet, peer-to-peer transmission, content division and the like. When a user is to download a data file or multimedia program contents from the Internet, a content provider or a content sharer defines different attributes for different segments in the same file according to the different attributes of specific program contents, classifies the segments, and provides and shares classification information for the other users. When the user downloads the contents from the Internet, the downloading user preferably selects a list of the segments meeting attribute requirements thereof according to the known classification information, preferably downloads and uses the segments, expands the downloading of the classification information of the segments according to needs thereof, and provides right control and management strategies corresponding to profiles of the segments.

Description

technical field [0001] The invention relates to the fields of Internet application, digital broadcasting, network transmission, P2P downloading technology, audio and video technology and the like. It mainly uses P2P network transmission technology, multimedia compression and transmission technology, etc. Background technique [0002] With the popularity of the Internet, Internet users can share rich data and multimedia resources on the Internet. A commonly used method of data sharing on the Internet is that the content provider places the content on the server, the user connects to the server where the content resides from the client, and downloads the shared file located on the server from the server. Due to the sharing of more and more multimedia content on the Internet, the transmission of large amounts of data has caused a large amount of network transmission resources to be occupied, which not only affects the smoothness of Internet transmission for other users, but al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06H04N21/235
Inventor 藤井由纪夫东嶋重树张志刚王鸿鸣刘立品
Owner HITACHI LTD
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