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Information processing method and equipment, content distribution server and method thereof

An information processing method and content distribution technology, which are applied to information processing and equipment, content distribution servers and the fields thereof, and can solve the problems of playback image omission and the like

Inactive Publication Date: 2005-04-20
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to efficiently perform authentication processing, effectively protect copyrights, etc., effectively utilize copyright works, and solve problems caused by playback images due to delay times associated with authentication processing. omitted question

Method used

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  • Information processing method and equipment, content distribution server and method thereof
  • Information processing method and equipment, content distribution server and method thereof
  • Information processing method and equipment, content distribution server and method thereof

Examples

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no. 1 example

[0078] Figure 4 is a block diagram showing a scenario setup including an MPEG-4 player according to a preferred embodiment of the present invention. Figure 4 The system shown processes "IP data" for "IP protection". Figure 4 The system shown has IPMP (Intellectual Property Management and Protection System) 207 and it is compatible with image 3 The difference of the system is that the copyright verification and protection functions are realized by means of this IPMP207.

[0079] Figure 7 is a flowchart showing user operations related to authentication processing. Figure 4 The operation of the system shown will be combined below Figure 7 describe. On the server side, a multiplexer 201 receives different objects from a plurality of web sites 202 to 204 with different URLs (Uniform Resource Locators), such as URL1, URL2, and URL3, and generates multiple objects composed motion picture data. Such moving image data is transmitted to the user via the network in response...

no. 2 example

[0132] As described above, in the first embodiment, an IPMP stream containing URL information is added to streams of a plurality of objects, and these streams are encoded into one stream to generate an MPEG-4 bit stream. In addition, a stream comprising an IPMP stream is identified from such an MPEG bit stream, and when the MPEG-4 player sends an authentication request signal to one or more servers connected to the network with a corresponding URL, a "return Channel" is adopted. In the second embodiment, another method using this "return channel" will be described.

[0133] Figure 8 is a block diagram showing a schematic setup of an MPEG-4 player having the setup shown in FIGS. 2 and 3, to which a copyright protection system (IPMP system 86) and an object data processing flow control section (IPMP stream flow control 83) are added.

[0134] Figure 8 shows in more detail Figure 4 Flow control at "Access Control Points" in .

[0135] see Figure 8 , an MPEG-4 bitstream ...

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Abstract

In the system for reproducing a moving picture composed of a group of objects, each object is effectively authenticated, and the problem of ignoring the reproduced image due to the delay time associated with the authentication process is solved. MUX (201) on the transmission side generates an MPEG-4 bit stream obtained by encoding a plurality of data and object streams constituting a moving picture and an IPMP stream containing source information and usage permission information into one stream. On the receiving side, DMUX (206) recognizes and separates individual streams in the MPEG-4 bit stream and divides them into a plurality of object data and source information / usage permission information corresponding to each object data.

Description

technical field [0001] The present invention relates to an information processing method and device, a content distribution server and its method, and an authentication device suitable for when authentication is required for the purpose of copyright protection associated with each object of a moving image to be reproduced, Authentication method, authentication system and storage medium. Background technique [0002] figure 1 is a block diagram showing a conventional digital video data transmission / reception system. Such as figure 1 As shown, a digital video data distribution server 10, in response to a request from a receiving user 20, downloads digital video data recorded in a digital video data storage device 12 such as a hard disk connected to the distribution server 10 through a network 30 such as the Internet . The distribution server 10 has a conversion section 11 for encoding digital video data. The digital video data is encoded by the conversion section 11 to re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/10H04N7/16H04N7/24H04N7/26H04N7/52
CPCH04N7/52H04N21/23412H04N21/234318H04N21/2541H04N21/44012H04N21/4622H04N21/4782H04N21/835H04N19/20H04N21/43074G11B20/10
Inventor 井上裕司中川利之
Owner CANON KK