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Digital television network system

A network system and digital TV technology, applied in electrical components, image communication, selective content distribution, etc., can solve the problems of high transmission quality and high receiving costs, and achieve the effect of ensuring information security, reasonable structure, and high comprehensiveness

Inactive Publication Date: 2016-05-25
NANTONG COSHIP ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using Coded Orthogonal Frequency Division Multiplexing (COFDM) modulation, 4 sets of TV programs can be transmitted within 8MHz bandwidth, with high transmission quality; but the reception cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Such as figure 1 and figure 2 As shown, a digital TV network system includes a source system 9, a coding system 10, a multiplexing and scrambling system 11, a CM system 7, a digital TV receiving module 2, a business management system 5, a conditional access system 6, a switch 4, HFC network 1, CMTS system 3 and TV monitoring module 12, digital TV receiving module 2 transmits signal to CMTS system 3 through HFC network 1, CMTS system 3 sends signal to switch 4, switch 4 connects business management system 5, business management System 5 is connected to conditional access system 6, conditional access system 6 is connected to multiplexing and scrambling system 11, multiplexing and scrambling system 11 is connected to encoding system 10, encoding system 10 is connected to source system 9; multiplexing and scrambling system 11 is connected to CM system 7 , the CM system 7 is connected with the digital TV receiving module 2 through the HFC network 1, and the digital TV rece...

Embodiment 2

[0067] Such as figure 1 and image 3 As shown, a digital TV network system includes a source system 9, a coding system 10, a multiplexing and scrambling system 11, a CM system 7, a digital TV receiving module 2, a business management system 5, a conditional access system 6, a switch 4, HFC network 1, CMTS system 3 and TV monitoring module 12, digital TV receiving module 2 transmits signal to CMTS system 3 through HFC network 1, CMTS system 3 sends signal to switch 4, switch 4 connects business management system 5, business management System 5 is connected to conditional access system 6, conditional access system 6 is connected to multiplexing and scrambling system 11, multiplexing and scrambling system 11 is connected to encoding system 10, encoding system 10 is connected to source system 9; multiplexing and scrambling system 11 is connected to CM system 7 , the CM system 7 is connected with the digital TV receiving module 2 through the HFC network 1, and the digital TV recei...

Embodiment 4

[0074] Such as figure 1 and Figure 4 As shown, a digital TV network system includes a source system 9, a coding system 10, a multiplexing and scrambling system 11, a CM system 7, a digital TV receiving module 2, a business management system 5, a conditional access system 6, a switch 4, HFC network 1, CMTS system 3 and TV monitoring module 12, digital TV receiving module 2 transmits signal to CMTS system 3 through HFC network 1, CMTS system 3 sends signal to switch 4, switch 4 connects business management system 5, business management System 5 is connected to conditional access system 6, conditional access system 6 is connected to multiplexing and scrambling system 11, multiplexing and scrambling system 11 is connected to encoding system 10, encoding system 10 is connected to source system 9; multiplexing and scrambling system 11 is connected to CM system 7 , the CM system 7 is connected with the digital TV receiving module 2 through the HFC network 1, and the digital TV rece...

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PUM

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Abstract

The invention discloses a digital television network system. The system comprises a signal source system, a service management system, a conditional access system, a switch, an HFC network, a CMTS system and a television monitoring module; a digital television receiving module transmits signals to the CMTS system through the HFC network; the CMTS system sends the signals to the switch; the switch is connected with the service management system; the service management system is connected with the conditional access system; the conditional access system is connected with a multiplexing scrambling system; the multiplexing scrambling system is connected with a coding system; the coding system is connected with a signal source system; the multiplexing scrambling system is connected with a CM system; the CM system is connected with the digital television receiving module through the HFC network; and the digital television receiving module is connected with a liquid crystal display. The system is rational and simple in structure and high in operation convenience; according to the system, each user in a family can share and adjust various data and devices in the system; the signal is encrypted in the transmission process; the user information needs to be verified; and therefore the information security of the user is ensured.

Description

technical field [0001] The invention relates to the field of network communication application and digital television technology, in particular to a digital television network system. Background technique [0002] Traditional TV services only provide users with video broadcast services, and users can only passively receive limited content. With the rapid development of microelectronics technology, VLSI technology, digital signal processing technology, and computer technology, encouraging results have been achieved in digital image acquisition, storage, and transmission technologies. The birth of international standards for digital TV signal coding, It has laid a solid foundation for the development of digital TV. With the rise of IPTV, IPTV and TV Internet services are broadband value-added services based on telecom broadband networks, with TVs and digital set-top boxes as the main terminal equipment, providing users with multimedia services. IPTV and TV Internet platforms...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/426
CPCH04N21/42607H04N21/42638
Inventor 朱俊
Owner NANTONG COSHIP ELECTRONICS
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