CN202818523U - Digital set-top box provided with broadband coaxial multi-service access module - Google Patents
Digital set-top box provided with broadband coaxial multi-service access module Download PDFInfo
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- CN202818523U CN202818523U CN 201220526896 CN201220526896U CN202818523U CN 202818523 U CN202818523 U CN 202818523U CN 201220526896 CN201220526896 CN 201220526896 CN 201220526896 U CN201220526896 U CN 201220526896U CN 202818523 U CN202818523 U CN 202818523U
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Abstract
The utility model discloses a digital set-top box provided with a broadband coaxial multi-service access module. The digital set-top box comprises a set-top box internal module, a coaxial data receiving port, two data transmitting ports, an audio/video output port and a coaxial Ethernet access terminal module, wherein the coaxial Ethernet access terminal module is provided with two data interfaces and two radio frequency interfaces, one ends of the two data interfaces are respectively connected with the two data transmitting ports, one end of one radio frequency interface is connected with the set-top box internal module, and one end of the other radio frequency interface is connected with the coaxial data receiving port. The digital set-top box provided by the utility model saves the port resources, and is conducive to the resource integration of transmission network.
Description
Technical field
The utility model relates to a kind of top box of digital machine, particularly a kind of top box of digital machine of receiving cable TV signal and merging business of networking of being applicable to.
Background technology
Top box of digital machine is a kind of by the prevention at radio-frequency port receiving digital television signal and be converted into the conversion equipment of analog signal output.It carries out the filtering decoding to the video and audio signal through digitalization compressed, is reduced to the audio-video signal of simulation, shows the output TV programme by user's television set.
The input interface of existing top box of digital machine is the radio frequency mouth, and output port generally comprises AV(Audio/Video, audio frequency and video) output port, S(Separate Video) two component vide output interfaces etc.Transmit the digital television signal that gets off from local side and be input to top box of digital machine through coaxial cable through the radio frequency mouth, restore the audio frequency and video analog signal through after the processing of top box of digital machine, be connected to the corresponding input interface of television set by AV output port or other output port, thereby show the audio frequency and video TV programme at the user side television set.
Along with digital service, such as the further popularization and application of IPTV, HDTV, VoIP, the trend of " integration of three networks " is also more and more obvious.Top box of digital machine has become the television terminal equipment that is widely used.Because cable TV network can provide the transmission rate higher than ordinary telephone line, if can realize the broadband the Internet access by set-top box, will be subject to undoubtedly user's extensive welcome.
And aspect general existing top box of digital machine access interface, need two kinds of interfaces: a kind of interface is data-interface, and a kind of is radio frequency interface; Be not suitable for adopting a coaxial cable to transmit simultaneously the requirement of cable TV signal and the Internet signal.
Summary of the invention
The utility model provides a kind of saving port resource, is conducive to the top box of digital machine that transport network resources is integrated.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of top box of digital machine that possesses broadband coaxial multi service access module, comprise set-top box internal module, coaxial data receiving port, two data transmit ports and the coaxial Ethernet module that accesses terminal, the described coaxial Ethernet module that accesses terminal is provided with two data interfaces and two radio frequency interfaces, described two data interface one ends are connected with two data transmit ports respectively, wherein a radio frequency interface one end is connected with the set-top box internal module, and another radio frequency interface one end is connected with the coaxial data receiving port.
Preferably, the described coaxial Ethernet module that accesses terminal comprises MAC layer control chip, physical chip, data exchange module and high-pass and low-pass filter, described MAC layer control chip is connected with described physical chip, described physical chip respectively with described data exchange module be connected high-pass and low-pass filter and be connected; The one radio frequency interface other end is connected with described high-pass and low-pass filter front end, and another radio frequency interface other end is connected with described high-pass and low-pass filter common port, and described two data interface other ends all are connected with data exchange module.
Particularly preferred, described two data interfaces are the RJ45 interface.
Particularly preferred, described two data transmit ports are the RJ45 interface.
Compared with prior art, the beneficial effects of the utility model are:
1) the external input port of the utility model only has a radio frequency interface, has adapted to adopt coaxial cable to transmit simultaneously the requirement of cable TV signal and the Internet signal.Need simultaneously Ethernet data to connect Data Input Interface with the ordinary numbers set-top box and connect the rf inputs mouth with cable TV signal and compare, saved port resource, be conducive to the resource consolidation of transmission network.
2) with existing set-top box on one of two data port be receiving port, one be that transmit port is different, two data ports that this reality is invented all are descending transmission FPDP, and subscriber computer network connection business all can independently be provided.
Description of drawings
Fig. 1 is the internal circuit configuration figure of top box of digital machine in the utility model one preferred embodiment;
Fig. 2 is the access terminal internal circuit configuration figure of module of coaxial Ethernet among Fig. 1 embodiment.
Embodiment
Consult Fig. 1-2, this top box of digital machine comprises set-top box internal module, coaxial data receiving port, two data transmit ports, audio frequency and video output port and coaxial Ethernets module that accesses terminal, and wherein the coaxial Ethernet module that accesses terminal comprises MAC layer control chip, physical chip, data exchange module, high-pass and low-pass filter, two data interfaces and two radio frequency interfaces; MAC layer control chip is connected with physical chip, and physical chip is connected with high-pass and low-pass filter with data exchange module respectively; Two data interface one ends are connected with two data transmit ports respectively, and two data interface other ends all are connected with data exchange module; One radio frequency interface, one end is connected with the set-top box internal module, and this radio frequency interface other end is connected with described high-pass and low-pass filter front end; Another radio frequency interface one end is connected with the coaxial data receiving port, and this radio frequency interface other end is connected with described high-pass and low-pass filter common port.
Preferably, two data interfaces and two data transmit ports all adopt the RJ45 interface.
The coaxial data receiving port receives from the cable TV signal of coaxial cable and the mixed signal of the Internet signal, and the common port of input high-pass and low-pass filter; High-pass and low-pass filter is finished separating of high-frequency TV signal and low frequency ethernet signal, and the ethernet signal after the separation carries out analog-to-digital conversion and the rectification of signal by physical chip, and is transferred to MAC layer control chip by standard MII interface; MAC layer control chip delivered to physical chip by the MII interface, and by physical chip data is transmitted to data exchange module in physical layer after the packet that receives is repacked processing by the grade of service; Data exchange module with packet-switching to the data sending terminal mouth.The front end of high-pass and low-pass filter transfers to the set-top box internal module with the high frequency cable TV signal by a radio frequency interface, and connects user's TV by the audio frequency and video output port.
Below only be concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the utility model rights protection scope.
Claims (4)
1. top box of digital machine that possesses broadband coaxial multi service access module, comprise set-top box internal module, coaxial data receiving port, two data sending terminal mouths and audio frequency and video output port, it is characterized in that, it also comprises the coaxial Ethernet module that accesses terminal, the described coaxial Ethernet module that accesses terminal is provided with two data-interfaces and two radio frequency interfaces, described two data-interfaces, one end is connected with two data sending terminal mouths respectively, and wherein a radio frequency interface one end is connected with the set-top box internal module, and another radio frequency interface one end is connected with the coaxial data receiving port.
2. the top box of digital machine that possesses broadband coaxial multi service access module according to claim 1, it is characterized in that, the described coaxial Ethernet module that accesses terminal comprises MAC layer control chip, physical chip, data exchange module and high-pass and low-pass filter, described MAC layer control chip is connected with described physical chip, described physical chip is connected with high-pass and low-pass filter with described data exchange module respectively, a described radio frequency interface other end is connected with described high-pass and low-pass filter front end, described another radio frequency interface other end is connected with described high-pass and low-pass filter common port, and described two data interface other ends all are connected with data exchange module.
3. each described top box of digital machine that possesses broadband coaxial multi service access module is characterized in that according to claim 1-2, and described two data-interfaces all adopt the RJ45 interface.
4. each described top box of digital machine that possesses broadband coaxial multi service access module is characterized in that according to claim 1-2, and described two data sending terminal mouths all adopt the RJ45 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526896 CN202818523U (en) | 2012-10-15 | 2012-10-15 | Digital set-top box provided with broadband coaxial multi-service access module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526896 CN202818523U (en) | 2012-10-15 | 2012-10-15 | Digital set-top box provided with broadband coaxial multi-service access module |
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| CN202818523U true CN202818523U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220526896 Expired - Fee Related CN202818523U (en) | 2012-10-15 | 2012-10-15 | Digital set-top box provided with broadband coaxial multi-service access module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102883200A (en) * | 2012-10-15 | 2013-01-16 | 苏州云普通讯技术有限公司 | Digital set-top box having broadband coaxial multi-service access module |
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2012
- 2012-10-15 CN CN 201220526896 patent/CN202818523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102883200A (en) * | 2012-10-15 | 2013-01-16 | 苏州云普通讯技术有限公司 | Digital set-top box having broadband coaxial multi-service access module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20181015 |