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Program control method and device thereof

A control method and receiving device technology, applied in the direction of analog confidentiality/tolling system, etc., can solve problems such as damage to the interests of operators, and achieve the effect of protecting vital interests

Inactive Publication Date: 2010-07-07
北京视博数字电视科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the process of realizing the present invention, the inventor found that the defect of the prior art lies in that: in the prior art, there is no restriction on the use authority of the receiving device in different areas, so that the user can use one receiving device to watch TV programs in different areas, thereby detrimental to the interests of the operator

Method used

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  • Program control method and device thereof
  • Program control method and device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] An embodiment of the present invention provides a viewing control device, such as figure 2 As shown, the device includes an information reading unit 201, an authorization control information generating unit 202, and a first information sending unit 203; wherein, the information reading unit 201 is used to read the program configuration information in the program list, and the program configuration information Including product identification and region control attributes; the authorization control information generating unit 202 is used to generate authorization control information according to the program configuration information, the authorization control information includes program configuration information and descrambling control words; the first information sending unit 203 is used to generate The entitlement control information is sent to the receiving device.

[0041] In this embodiment, the information reading unit 201 can read program configuration informat...

Embodiment 2

[0046] An embodiment of the present invention provides a viewing control device, such as image 3 As shown, the device includes an information reading unit 201 , an authorization control information generating unit 202 and a first information sending unit 203 , whose functions are similar to those in Embodiment 1 and will not be repeated here.

[0047] In this embodiment, the program list can be preconfigured, and the area control attribute of the program can be configured in the program list. In this way, the information reading unit 201 can read the program configuration information from the preconfigured program list to generate the corresponding ECM packets.

[0048] In this way, if image 3 As shown, the device also includes a first configuration unit 301, the first configuration unit 301 is used to configure the program list, the program list includes the program configuration information; wherein, the program configuration information includes a product identification ...

Embodiment 3

[0059] An embodiment of the present invention provides a viewing control device, such as Figure 4 As shown, the device includes a first receiving unit 401, a first judging unit 402, a second judging unit 403 and a first processing unit 404;

[0060] Wherein, the first receiving unit 401 is used to receive the authorization control information sent by the front end, the authorization control information includes program configuration information and descrambling control words, the program configuration information includes product identification and region control attributes; the first judging unit 402 uses Determine whether the program corresponding to the product identifier needs region control according to the region control attribute; Whether the network identifier of the front end is consistent; if the judgment result of the second judging unit 403 is that the area value is consistent with the network identifier, the first processing unit 404 is used to process the author...

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Abstract

The invention provides a program control method and a device thereof. The method comprises the following steps of: receiving an entitlement control message sent by a front end, wherein the entitlement control message comprises a program configuration message and a descrambling control word; and the program configuration message comprises a product identifier and an area control attribute; judging whether the program corresponding to the product identifier needs area control or not according to the area control attribute; if the program corresponding to the product identifier needs area control, judging whether an area value of a receiving device acquired in advance accords with a network identifier of the front end or not; and if the area value of the receiving device acquired in advance accords with the network identifier of the front end, processing the entitlement control message according to a pre-stored product key to acquire the descrambling control word. In the method, the entitlement control message is processed according to the area control attribute corresponding to the program so as to prevent a receiving device from being used in a plurality of areas and effectively protect the vital interests of operators.

Description

technical field [0001] The present invention relates to digital television technology, in particular to a viewing control method and device thereof. Background technique [0002] At present, a conditional access system (CAS: Condition Access System) is a system for controlling users to receive broadcast services, and realizes paid services of the broadcast system through authorization management. [0003] The conditional access system controls the broadcast service by scrambling the broadcast data and encrypting the scramble control information. [0004] Such as figure 1 As shown, the front end uses the product key to encrypt the control word CW, and transmits it in the entitlement control message (ECM: Entitlement Control Message). The front end uses the user key to encrypt the product key, and sends the encrypted product key to the terminal receiving device through the EMM data packet. [0005] The receiving device filters the EMM data packet according to the receiving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/16
Inventor 王天星吴君鸣王宇高志扬王文军李东韩坚
Owner 北京视博数字电视科技有限公司
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