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Viewing control apparatus, viewing control program, and secure module

A technology of a control device and a security module, applied in the field of allowing to watch content, can solve the problems that advertisements cannot meet the expectations of advertisers, cannot expect large income, and companies lose places to advertise, etc.

Inactive Publication Date: 2006-09-27
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, the viewing mode in which the content is stored and reproduced at the desired time allows the user to skip the advertisement and only reproduce the content, which is likely to use the broadcast to mitigate the effect of the advertisement, cause the advertiser to withdraw from the broadcast, and make the advertisement based on Advertisements such as those described above are more difficult to scrutinize for content
[0011] Furthermore, even if certain measures are taken to drive viewing of stored advertisements, viewing an old advertisement stored and broadcast in the past may not meet advertiser expectations
[0012] On the other hand, the method of billing the content when the content is stored or viewed requires collection of fees from individual viewers, which leads to the problem of requiring costs for collecting the fees
In addition, since the content is charged before it is viewed, the viewer has a tendency to hesitate to purchase the content without checking the content, which causes a problem that a large income cannot be expected
Also, this method of billing can cause the company to lose its advertising space

Method used

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  • Viewing control apparatus, viewing control program, and secure module
  • Viewing control apparatus, viewing control program, and secure module
  • Viewing control apparatus, viewing control program, and secure module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]The first embodiment of the present invention will explain the basic structure of a viewing control device that allows viewing of content when an advertisement is viewed.

[0047] Such as figure 1 As shown in the block diagram, this device is provided with a reproducing / broadcasting device 101 that outputs an advertisement 1011, a scrambled encrypted content 1012, and an ECM 1013 encrypted with a key Kw, from which a key Ks is extracted using a stored key Kw 1022 The security module 102 of 103, the scramble decoder 104 that decrypts the encrypted content 1012 using the key Ks 103 and outputs the decrypted content 105, and the display device 106 that displays the advertisement 1011 and the decrypted content 105.

[0048] The reproducing / broadcasting device 101 is a broadcasting device that generates advertisements 1011, encrypted contents 1012, and ECMs 1013, and broadcasts and transmits them by radio or wired circuits. The reproducing / broadcasting device 101 is also a r...

no. 2 example

[0089] A second embodiment of the present invention will explain a viewing control device that allows viewing of content when an advertisement is viewed from its beginning to its end.

[0090] Such as Figure 8 As shown, in this device, the end of advertisement 2011 transmitted from reproduction / broadcast device 201 includes an EMM update request encrypted using key Kw 2022, which is further encrypted using key Kw2 (2025), and the beginning of advertisement 2011 includes kw2 information 20112, which is the key Kw2 encrypted using the key Kw2022 (2025). The information content of the EMM update request 2 (20111) is the same as that of the EMM update request 10111 in the first embodiment, and describes the target content and the valid period before which viewing of the content is permitted.

[0091] On the other hand, security module 202 is provided with Kw2 extraction part 2024 and EMM update part 2023, and this Kw2 extraction part 2024 decrypts Kw2 information 20112 using key...

no. 3 example

[0098] The third embodiment will explain viewing control means that allow viewing of content when an advertisement is viewed from beginning to end without fast forwarding.

[0099] Such as Figure 10 As shown, this device includes EMM update request 2 (30111) with advertisement viewing time information 301111 indicating the viewing time of advertisement 3011.

[0100] On the other hand, the security module 302 is provided with an advertisement viewing time judging section 3026 that measures the time from after receiving the Kw2 information 30112 until receiving the EMM update request 2 (30111), and when the measured time is different from the advertisement viewing time When the information is 301111, delete the content viewing information set in EMM3021. The rest of the structure is the same as the second embodiment ( Figure 8 ) are the same.

[0101] The operation of this viewing control device will be explained below with reference to FIG. 11 .

[0102] First, reproduct...

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PUM

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Abstract

EMM update information (10111) for updating a content specified by an EMM (1021) and a term of validity is correlated to an advertisement (1011). When the advertisement (1011) is viewed, the EMM (1021) is updated so that the content specified by the EMM update information (10111) can be viewed. Accordingly, a viewer can view the content for free and surely see the advertisement. Since a term of validity is set for viewing the content which can be viewed by viewing the advertisement, it is necessary to view the latest advertisement so that the content viewing moment is contained in the term of validity. As a result, it is possible to surely make a viewer view the latest valid advertisement when the viewer views a content.

Description

technical field [0001] The present invention relates to a viewing control device for controlling viewing of broadcast content or stored content, a viewing control program, a security module, and a storage medium for recording content, etc., and more particularly, to allowing viewing of content under conditions of viewing advertisements. Background technique [0002] Traditionally, digital content is delivered to users by broadcasting or recording in a storage medium such as DVD, and the price for the content is collected from the user at the purchase cost of the storage medium or from an advertiser for an advertisement attached to the content Collected in the form of broadcast fees, or application-based billing schemes when the content is viewed (pay-per-view: PPV), etc. [0003] In the case of paid broadcasting paid by the user as the content price, the content is encrypted (scrambled) using an encryption key (scrambling key) Ks, and then broadcast, and program information ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/16
Inventor 吉川雅昭
Owner PANASONIC CORP