Digital TV set-top box
A digital TV and TV technology, applied in the field of digital TV set-top boxes, can solve the problems of different, increased design, production, sales, use and maintenance costs, and achieve the effect of reducing costs
Active Publication Date: 2017-01-11
河北时迈电视科技有限公司
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Problems solved by technology
The problem is that, as mentioned above, in order to cope with the diversity, complexity and imbalance of digital TV development in my country, it is necessary to provide a variety of combinations of digital TV set-top box products, which will greatly increase the design, production, sales, use and maintenance cost
[0005] In addition, due to the different types of digital TV set-top boxes, the operators who provide services for them are often different
In order to provide safe, effective, manageable and controllable high-quality services, each service operator usually adopts a security encryption system that meets its own needs and technical system. Safety requirements are facing huge challenges
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[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0022] Such as figure 2 As shown, a digital TV set-top box according to an embodiment of the present invention includes a power supply, a control board and a main board. The power supply is used to provide power to various circuits of the set-top box. The control board is used for man-machine interaction and responding to user's operation to control the set-top box. The main board is provided with an audio and video output interface, a cable digital TV decoding module, a cable digital TV control module, an audio and video switching circuit, a control switching circuit, and a terrestrial digital ...
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The invention provides a digital television set top box. The digital television set top box comprises a power source, a control panel and a main board. An audio and video output interface, a digital television decoding module, a digital television control module, an audio and video switching circuit, a control switching circuit and digital television expansion interfaces are arranged on the main board, the digital television expansion interfaces comprise an audio and video interface, a control interface and a power source interface, the audio and video interface and the digital television decoding module are connected to the audio and video switching circuit respectively, the audio and video switching circuit is further connected to the audio and video output interface, the control interface and the digital television control module are connected to the control switching circuit respectively, and the control switching circuit is further connected to the control panel. According to the digital television set top box, multiple digital television decoding functions can be realized through upgrading of the digital television expansion interfaces.
Description
technical field [0001] The invention belongs to the field of broadcast television, in particular to a digital television set-top box. Background technique [0002] With the rapid development of digital signal processing technology, large-scale integrated circuit, computer and communication technology, the field of radio and television is facing a new revolution, entering the era of leaping from analog TV to digital TV. At present, my country's digital TV mainly consists of cable digital TV, terrestrial digital TV, satellite digital TV, Internet TV and so on. These types of digital TV have different characteristics, so the areas suitable for use are also different. Currently, cable digital TV and Internet TV are mainly used in cities, while terrestrial digital TV and satellite digital TV are mainly used in suburban and rural areas. With the development and popularization of digital TV, the coexistence of multiple digital TV modes has become the development trend of digital T...
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IPC IPC(8): H04N21/41
Inventor 冯景锋赵强黄泽强康宏生曹志
Owner 河北时迈电视科技有限公司