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Content server, information processing device/method, network device and content distribution method/system

An information processing device and content server technology, applied in the field of content servers, can solve problems such as poor video quality and low resolution

Inactive Publication Date: 2009-11-25
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the methods described in the pamphlets of International Publication No. WO 2004 / 114667 and International Publication No. WO 2004 / 114668 have the problem that the quality of the video for channel switching is poor due to low resolution

Method used

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  • Content server, information processing device/method, network device and content distribution method/system
  • Content server, information processing device/method, network device and content distribution method/system
  • Content server, information processing device/method, network device and content distribution method/system

Examples

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no. 1 example

[0136]

[0137] First, refer to figure 1 , to describe in detail the content publishing system according to the first embodiment of the present invention. figure 1 is an explanatory diagram for describing the content distribution system according to the present embodiment. Incidentally, in the following description, an IPTV system is taken as an example of a content distribution system for description.

[0138] For example, if figure 1 As shown, the content distribution system 1 according to this embodiment mainly includes: a plurality of content servers 10A, 10B and 10C corresponding to respective channels, switches 12 and 18, routers 14 and 16, a plurality of information processing channels used by viewers The devices 20A, 20B, 20C and 20D plan to issue the time point information transmission server 30 and the reference clock server 40 .

[0139] The content server 10 corresponds to the broadcasting station of each channel in the IPTV system, and it encodes the video / au...

no. 2 example

[0322]

[0323] First, refer to Figure 19 , the content distribution system according to the second embodiment of the present invention will be described in detail. Figure 19 is an explanatory diagram for describing a content distribution system according to a second embodiment of the present invention. Incidentally, in the following description, an IPTV system is taken as an example of the content distribution system for description.

[0324] For example, if Figure 19 As shown, the content distribution system 1001 according to this embodiment mainly includes: a plurality of content servers 1010A, 1010B and 1010C corresponding to each channel, switches 1012 and 1018, routers 1014 and 1016, and a plurality of information servers used by viewers The processing devices 1020A, 1020B, 1020C and 1020D plan to publish the time point information transmission server 1030 and the reference clock server 1040 .

[0325] The content server 1010 corresponds to the broadca...

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Abstract

A content server according to the present invention includes a plurality of encoders for encoding a video / audio content and for generating multiple compressed data streams from the video / audio content, where the video / audio content is encoded in such a manner that the positions of video frames corresponding to reference compressed video data and the time points of distribution of the reference compressed video data are different for the respective multiple compressed data streams, and a plurality of distribution sections for respectively acquiring from a separate encoder the compressed data stream generated by the encoder and for distributing the acquired compressed data stream, the plurality of distribution sections being assigned individual network addresses.

Description

technical field [0001] The present invention relates to a content server, an information processing device, a network device, a content distribution method, an information processing method and a content distribution system. Background technique [0002] Internet Protocol Television (IPTV), which is a video distribution system using an IP network, can achieve the same A service equivalent to that of a TV system using conventional radio waves. [0003] However, due to the characteristics of the system, the IPTV system requires about 1 to 3 seconds for channel switching, so there is a problem that the time required for channel switching is relatively long compared with general digital TV broadcasting and the like. [0004] The problem stems from two issues described below. The first problem is that switching control of data to be distributed to the access network takes time. The reason for this problem is that in the IPTV system, the access network to the service user's pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/173H04N7/26H04L29/08H04N21/2383H04N21/2385H04N21/6402
Inventor 五十岚卓也
Owner SONY CORP
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