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System and method for realizing digital television program preview function

A technology for digital TV and programs, applied in the system field of realizing the preview function of digital TV programs, can solve the problems of operation, unable to refine TV programs, unable to attract users, etc., to enhance stickiness, provide practical benefits, and achieve stable and reliable functions. Effect

Pending Publication Date: 2021-02-02
GUANGXI RADIO & TV NETWORK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, users cannot understand the specific content of the program, even if the program cannot naturally be attracted and purchased
2. Due to the inability to provide a preview function, radio and television operators cannot conduct more refined operations on TV programs, and cannot attract users by allowing users to experience them in advance

Method used

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  • System and method for realizing digital television program preview function
  • System and method for realizing digital television program preview function

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Embodiment Construction

[0038] The present invention will be described below in conjunction with the accompanying drawings, and the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0039] refer to figure 1 , a system for realizing the digital TV program preview function, including a front end and a terminal.

[0040] The front end includes a CA system and a scrambling multiplexer; the CA system includes a CA database and an ECMG; the CA system database is used to store the preview attributes of the program; the ECMG regularly extracts the preview attributes from the CA system database and adds them to the authorization The control information is returned to the scrambling multiplexer; the scrambling multiplexer is used to multiplex the authorization control information and the scrambled program stream, and then send it to the broadcasting network;

[0041] The terminal includes a set-top box conn...

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PUM

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Abstract

The invention discloses a system for realizing a digital television program preview function. The system comprises a front end and a terminal. The front end comprises a CA system and a scrambling multiplexer. The CA system comprises a CA database and an ECMG (Authorization Control Information Generator); the CA system database is used for storing preview attributes of programs; the ECMG regularlyextracts preview attributes from a CA system database, adds the preview attributes to ECM (Encryption Control Message) and returns the ECM to the scrambling multiplexer; the scrambling multiplexer isused for multiplexing the authorization control information and the scrambled program stream, and then issuing the same to a broadcast television network; the terminal comprises a set-top box connected to the broadcast television network, and the set-top box is used for analyzing the preview attribute of the scrambled program according to the authorization condition of the set-top box after receiving the authorization control information each time. According to the system disclosed in the invention, the purpose of attracting users is achieved through a method of enabling the users to experience in advance.

Description

technical field [0001] The invention belongs to the technical field of broadcasting and television, in particular to a system and method for realizing the preview function of digital television programs. Background technique [0002] Digitized broadcast television signals are usually encrypted, transmitted and protected by a conditional access system. Digital TV conditional access system (CAS or CA system) refers to a system used to control subscribers to encrypt transmission and protection of broadcast services and programs. Paid services for data broadcasting systems. Digital TV users can only watch authorized broadcast services or programs, otherwise they will not be able to decrypt broadcast digital TV program signals that are confidentially protected by the conditional acceptance system. Digital TV conditional access system is the core system of radio and television operators and the key to the successful development of pay TV services. [0003] There is often no pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/254H04N21/258H04N21/266H04N21/438H04N21/4623H04N21/4627
CPCH04N21/2541H04N21/25866H04N21/26606H04N21/4382H04N21/4623H04N21/4627
Inventor 徐洪亮李志强朱泽智刘巧艳杨云松冯燕强潘攀乐晋德陈杰东孟文献庞添尹罗日贵周睿
Owner GUANGXI RADIO & TV NETWORK
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