DVB (Digital Video Broadcasting) condition receiving device capable of descrambling integrated basic data and normal data

A technology of normal data and basic data, applied in the fields of electrical components, image communication, selective content distribution, etc., can solve the problems of complex receiving terminals, general resolution, expensive TV program fees, etc.

Inactive Publication Date: 2013-09-04
呼延志华
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  • Application Information

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Problems solved by technology

[0004] However, in the existing digital TV program user group, there are high-end users who need very high-definition program content. They can afford expensive TV program fees and relatively complicated receiving terminals. Therefore, they can watch high-definition program content through three-level decryption. But th

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  • DVB (Digital Video Broadcasting) condition receiving device capable of descrambling integrated basic data and normal data

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Embodiment Construction

[0014] The implementation of the DVB conditional access device integrating basic data and normal data descrambling of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] figure 1 It shows a block diagram of the structure of a DVB conditional access device integrating basic data and normal data descrambling according to an embodiment of the present invention. Among them, a DVB conditional receiving device that can receive two channels of audio and video data with different resolutions for users of different levels to choose to play and normal data descrambling includes: demultiplexer 1, controller 2, unpacking module 3, and descrambling Module 4, the transport stream TS received by the demultiplexer 1 includes basic data and normal data with different collection rates and the same program content. The demultiplexer 1, the unpacking module 3, and the descrambling module 4 sequentially deal with the received transmission The...

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Abstract

The invention relates to a DVB (Digital Video Broadcasting) condition receiving device capable of descrambling integrated basic data and normal data. The DVB condition receiving device comprises a demultiplexer, a controller, an unpacking module and a descrambling module, wherein a transport stream TS received by the demultiplexer comprises basic data and normal data with different acquisition rates and the same program content, and the demultiplexer, the unpacking module and the descrambling module sequentially carry out the demultiplexing, unpacking and descrambling operation on the received transport stream; and the controller is connected with the descrambling module and receives user priorities so as to start up the basic data descrambling operation or normal data descrambling operation according to different user priorities. By the adoption of the DVB condition receiving device capable of descrambling integrated basic data and normal data provided by the invention, two data contents of different resolutions can be received at a receiving end, two descrambling methods of different degrees of difficulty can be integrated at the receiving end, and the two data contents and the two descrambling methods respectively correspond to each other so as to adapt to the watching demand of different user groups at the receiving end for digital TV programs.

Description

Technical field [0001] The present invention relates to the field of digital television reception, in particular to a DVB conditional reception device integrating basic data and normal data descrambling. Background technique [0002] DVB, or digital video broadcasting, was initiated by the "Joint Expert Group" formed by the European Telecommunication Standardization Organization, the European Electronic Standardization Organization and the European Broadcasting Union. According to the different transmission channels, it is divided into satellite TV DVB-S and cable TV DVB- C. There are four types of terrestrial TV DVB-T and handheld terrestrial wireless TV DVB-H. The DVB standard includes multiple content components such as channel coding, source coding, conditional access, and subtitle transmission. At present, DVB standards and improved standards compatible with DVB are widely used in various countries and regions such as Europe, Japan, Canada, and China. [0003] The conditiona...

Claims

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Application Information

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IPC IPC(8): H04N21/41H04N21/418H04N21/434
CPCH04N21/4181H04N21/4348
Inventor 不公告发明人
Owner 呼延志华
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