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Method for realizing acquisition of user on-line information

An implementation method and user technology, applied in the direction of image communication, color TV parts, TV system parts, etc., can solve problems such as network congestion and authentication server overload, reduce network congestion or authentication server overload, and reduce illegal The effect of accessing the digital TV network

Inactive Publication Date: 2006-01-25
HUAWEI TECH CO LTD
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  • Abstract
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Problems solved by technology

[0026] The present invention provides a method for obtaining online information of users, so as to solve the technical problems of network congestion or overload of authentication servers caused by a large number of users simultaneously starting up for identity authentication in the process of obtaining online information of users at the front end in the prior art

Method used

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  • Method for realizing acquisition of user on-line information
  • Method for realizing acquisition of user on-line information
  • Method for realizing acquisition of user on-line information

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Embodiment Construction

[0051] The present invention is specifically described above in conjunction with the accompanying drawings.

[0052] see figure 2 and Figure 7 , which is an implementation flow chart of acquiring user online information in the digital television network of the present invention.

[0053] S110: When the STB21 is turned on, read the life cycle of the key stored in the subscriber identification module 22;

[0054] In order to enable legal users to watch programs of digital TV networks, conditional access to programs has been introduced in digital TV networks. The core of program conditional reception is the control of control word transmission. The control word (CW) randomly generated by the front end 1 is used to control the scrambling of the digital TV program signal sent by the front end 1 through the CW. In order to successfully descramble the scrambled signal at the user terminal 2, the user terminal 2 must have The same CW as the front end to control descrambling. If...

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Abstract

A method for realizing acquisition of on - line information of user includes obtaining cipher key living period from user identification module when set - top box is switched on ; issuing certification request to front end by set - top box if living period is expired ; carrying out certification by front end and setting user terminal as on-line state as well as sending response information including new cipher key data back if certification is passed ; updating cipher key data by set - top box when it receives response information of certification success .

Description

technical field [0001] The invention relates to the field of digital television, in particular to a method for realizing online information acquisition of users in a digital television network. Background technique [0002] A digital TV network includes a digital TV front end (hereinafter referred to as the front end) and several user terminals. The front end sends encrypted digital TV programs to each user terminal through the broadcast network, and each user terminal first receives the signal through a set-top box (STB, Set Top Box), and then decrypts the above-mentioned digital TV through the key in the subscriber identification module of the user terminal program, and finally use the TV as a display device to watch the program. The most common subscriber identification module is a smart card. When a user buys a smart card, the key information is already set in the smart card. [0003] The above-mentioned disclosed digital TV network is a one-way network. However, with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/16H04N7/173H04N5/44H04N7/167
CPCH04N21/25816H04N7/173H04N21/63345H04N7/1675H04N21/4181
Inventor 刘进明鞠德刚姚峻许永红胡峻岭
Owner HUAWEI TECH CO LTD
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