Scrambling non-scrambling transmission flow real-time authenticating device and television device with same
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GRADUATE SCHOOL OF THE CHINESE ACAD OF SCI GSCAS
- Publication Date
- 2007-11-14
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to digital television technology, in particular to a digital television transmission stream real-time security authentication device capable of real-time verification of disturbed and non-disturbance transmission streams and television equipment with the security authentication device. Background technique
[0002] With the development of science and technology, digital TV technology came into being. Because digital TV technology has the advantages of high transmission quality, wide range, many users, and fast speed, it will gradually replace traditional analog TV, so it has a very broad market prospect.
[0003] Figure 1 shows the basic structure of an existing digital television broadcasting system. As can be seen from FIG. 1 , a digital TV broadcasting system 100 includes a TV program providing subsystem 101 , a TV signal broadcasting subsystem 102 , a network transmission subsystem 103 and a terminal playing subsystem 104 . ...