CN201479299U - Coupler and radio and television network home system - Google Patents
Coupler and radio and television network home system Download PDFInfo
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- CN201479299U CN201479299U CN2009202041462U CN200920204146U CN201479299U CN 201479299 U CN201479299 U CN 201479299U CN 2009202041462 U CN2009202041462 U CN 2009202041462U CN 200920204146 U CN200920204146 U CN 200920204146U CN 201479299 U CN201479299 U CN 201479299U
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Abstract
The utility model is applicable to the technical field of radio and television network access, and provides a radio and television network home system comprising EoC local side equipment, a power modulator/demodulator, a set-top box and a coupler, wherein the coupler separates television signals from data signals, and couples the data signals to a power line; and a signal input terminal of the coupler is connected with the EoC local side equipment through a coaxial cable, a data signal output terminal thereof is connected with the power modulator/demodulator through the power line, and a television signal output terminal thereof is connected with the set-top box through the coaxial cable. The radio and television network home system can greatly reduce the home cost of radio and television networks, and has simple wiring, stable network signals, and strong practicability.
Description
Technical field
The utility model belongs to CHINA RFTCOM Co Ltd access technology field, relates in particular to a kind of CHINA RFTCOM Co Ltd system of registering one's residence.
Background technology
The cable TV of China has passed through 20 years of development, national cable TV network winding thread road total length has surpassed 3,000,000 kilometers at present, fiber optic backbone reaches 260,000 kilometers, has set up an optical fibre-coaxial cable that covers urban and urual areas of whole country and has mixed (Hybrid Fiber Coaxial, HFC) network.In recent years, along with the development of network communications technology, and the needs of integration of three networks competition, the various places radio and TV operator is also trying to explore the especially road of access network technical development of network bi-directional technology when actively developing whole conversion.
At present, CHINA RFTCOM Co Ltd is registered one's residence and transformed one of most important technology is that Ethernet transmits (Ethernet over Coax on coaxial line, EoC) technology, this technology adopts an EoC local side apparatus (EoC Master) that TV signal and the data-signal that receives mixed, and mixed signal is transferred to EoC terminal equipment (EoC Slave) by the Cable line, isolate TV signal and data-signal by the EoC terminal equipment, wherein, TV signal spreads out of to set-top box by coaxial cable (Cable) line, data-signal spreads out of to computer by netting twine, because the EoC terminal equipment is provided with network interface, therefore, the user can directly be connected computer by netting twine with the EoC terminal equipment, but, this technical scheme has following shortcoming: because the Cable line interface of registering one's residence is fixed, the position of EoC terminal equipment (EoC Slave) is also with basic fixed, when the user need be when surfing the Net away from the position of EoC terminal equipment, the very long netting twine of lira of just need being in, so both influenced the attractive in appearance of family, inconvenient again user uses.
Need draw the very problem of fourdrinier wire at the above-mentioned diverse location online that utilizes CHINA RFTCOM Co Ltd to register one's residence to be implemented in family if desired, generally on the market at present adopt two kinds of technical schemes illustrated in figures 1 and 2.Wherein:
Fig. 1 shows the system that prior art 1 CHINA RFTCOM Co Ltd adopts the EoC scheme to register one's residence, as can be seen from Figure 1, the EoC local side apparatus is transferred to the EoC terminal equipment by the Cable line with TV signal and IP (Internet Protocol Internet protocol) signal, and the radio frequency ring of EoC terminal goes out the F head connector and by the Cable line television signal is transferred to set-top box; The network output of EoC terminal is connected with electric power modem 1 (Power Line Communication Modem is a power line ethernet signal transmission adaptor) by netting twine, the other end of electric power modem 1 is connected with power line by supply socket 1, the other end of power line is connected with electric power modem 2 by supply socket 2, and the network interface of electric power modem 2 connects computer.Owing to be connected by supply socket between electric power modem 1 and the electric power modem 2, and generally have a plurality of supply socket interfaces in the family, therefore, adopt this technical scheme, need not draw in the net line, also can be implemented in household internal has the position online of power supply arbitrarily, but, because this technical scheme needs each family that an Eoc terminal equipment and two electric power modems are installed at least, and at present on the market electric power modem price can be in any more always, therefore, the cost of this scheme is higher, is unfavorable for applying.
Fig. 2 shows the system that prior art 2 CHINA RFTCOM Co Ltd adopt the EoC scheme to register one's residence.This system comprises the EoC local side apparatus, EoC terminal equipment, set-top box, wireless router.TV signal and data-signal that the EoC local side apparatus is used for receiving mix, and mixed signal is transferred to the EoC terminal equipment by the Cable line, the EoC terminal equipment at first separates TV signal with data-signal, and TV signal is transferred to set-top box by the Cable line, give wireless router with data, wireless router is again with the computer of data to the domestic consumer.Adopt this scheme, can not need to draw in the family very the situation of fourdrinier wire to be implemented in the optional position online too, but, when adopting this scheme, if computer and wireless router not in same room or distance when far away, signal has very high attenuation, cause the network signal instability, particularly can not satisfy high bandwidth user's demand (as the IPTV set-top box), simultaneously, adopt wireless router that human body is had certain radiation effects.
The utility model content
In order to solve the deficiencies in the prior art, the utility model provides a kind of CHINA RFTCOM Co Ltd system of registering one's residence, be intended to solve when utilizing CHINA RFTCOM Co Ltd to set up family lan if the user need be in the loaded down with trivial details problem of diverse location online wiring of family, simultaneously, adopt this technical scheme to carry out the family lan construction, cost is low, and the network signal transmission is also more stable.
The utility model is to realize like this, a kind of CHINA RFTCOM Co Ltd system of registering one's residence, comprise the EoC local side apparatus, electric power modem, set-top box, coupler, described coupler is used to separate TV signal and data-signal, and data-signal is coupled to power line, the signal input part of described coupler connects described EoC local side apparatus by the Cable line, the data-signal output of described coupler is connected with electric power modem by power line, and the TV signal output end of described coupler is by Cable line junctor top box.
Preferably, described coupler comprises: first, second F head connector, and high pass filter, low pass filter, coupling transformer, supply socket, wherein:
A described F head connector is in coming received television signal and data transfer signal, and its signal input part connects the CABLE line, and signal output part connects high pass filter, and another signal output part connects low pass filter;
Described the 2nd F head connector is used for TV signal is transferred to set-top box, and its signal input part connects high pass filter, signal output part junctor top box;
Described high pass filter is used to separate TV signal, and its signal input part connects a F head connector, and signal output part connects the 2nd F head connector;
Described low pass filter is used for the mask data signal, and its signal input part connects a F head connector, and signal output part connects coupling transformer;
Described coupling transformer is used for data-signal is coupled to power line, and its signal input part connects low pass filter, and signal output part connects power line.
In the technical scheme that the utility model provides, each domestic consumer needs a coupler and electric power modem just to can be implemented in optional position online in the family, has saved the cost that utilizes CHINA RFTCOM Co Ltd to set up family lan.
Description of drawings
Fig. 1 is the register one's residence topological diagram of system of CHINA RFTCOM Co Ltd that prior art 1 provides;
Fig. 2 is the register one's residence topological diagram of system of CHINA RFTCOM Co Ltd that prior art 2 provides;
Fig. 3 is the register one's residence topological diagram of system of CHINA RFTCOM Co Ltd that the utility model provides;
Fig. 4 is a coupler structure block diagram of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 3, the utility model provides a kind of CHINA RFTCOM Co Ltd system of registering one's residence, and this system comprises: EoC local side apparatus, coupler, electric power modem and set-top box.
Described EoC local side apparatus is used to receive TV signal and the data-signal that transmits on the fiber optic backbone of CHINA RFTCOM Co Ltd, and TV signal and data-signal are mixed.Its signal output part connects coupler by the Cable line.Usually, all be provided with F head connector interface on EoC local side apparatus and the coupler, the Cable line is connected with coupler with the EoC local side apparatus by the F head connector.
Described coupler is used to separate TV signal and data-signal, and data-signal is coupled to power line.Its data-signal output connects electric power modem, and data-signal is coupled to power line, and electric power modem receives data-signal by power line; TV signal output end junctor top box, and TV signal is transferred to set-top box by the Cable line.
The concrete structure of described coupler is referring to Fig. 4, comprise: first, second F head connector, high pass filter, low pass filter and coupling transformer, wherein: the signal input part of a F head connector connects the Cable line, receive TV and data-signal on the Cable line, signal output part connects high pass filter and low pass filter.Described high pass filter is used to separate the TV signal that receives, and isolated TV signal is transferred to the 2nd F head connector, and the 2nd F head connector is transferred to set-top box with TV signal again.Described low pass filter is used to separate the data-signal that receives, and gives coupling transformer isolated data, and coupling transformer is coupled to power line with the data-signal of 2MHz-30MHz frequency range.General, coupling transformer by supply socket be connected power line.
Referring to Fig. 3, after electric power modem obtains from the data-signal on the power line, data can be given user's computer.Equally, electric power modem also is connected with power line by supply socket.
When the user need be when the diverse location of family be surfed the Net, as long as move to electric power modem near the supply socket of relevant position and be attached thereto, just can receive network signal, do not need to draw very long netting twine, therefore, the user can be very convenient in the diverse location online of family, simultaneously, there is not the attenuation problem of network signal in this technical scheme, and, owing to adopt each user of this technical scheme can save an electric power modem and EoC terminal equipment, therefore, greatly reduce the cost of arranging net, practical.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. CHINA RFTCOM Co Ltd system of registering one's residence, comprise the EoC local side apparatus, electric power modem, set-top box, it is characterized in that, described system comprises coupler, be used to separate TV signal and data-signal, and data-signal is coupled to power line, the signal input part of described coupler connects described EoC local side apparatus by coaxial wire, the data-signal output of described coupler is connected with electric power modem by power line, and the TV signal output end of described coupler is by coaxial wire junctor top box.
2. the CHINA RFTCOM Co Ltd as claimed in claim 1 system of registering one's residence is characterized in that described coupler comprises: first, second F head connector, and high pass filter, low pass filter, coupling transformer, supply socket, wherein:
A described F head connector is used for received television signal and data transfer signal, and its signal input part connects coaxial wire, and signal output part connects high pass filter, and another signal output part connects low pass filter;
Described the 2nd F head connector is used for TV signal is transferred to set-top box, and its signal input part connects high pass filter, signal output part junctor top box;
Described high pass filter is used to separate TV signal, and its signal input part connects a F head connector, and signal output part connects the 2nd F head connector;
Described low pass filter is used for the mask data signal, and its signal input part connects a F head connector, and signal output part connects coupling transformer;
Described coupling transformer is used for data-signal is coupled to power line, and its signal input part connects low pass filter, and signal output part connects supply socket.
3. a coupler that is used for the described system of claim 1 to 2 is characterized in that, comprises first, second F head connector, high pass filter, and low pass filter, coupling transformer, supply socket, wherein:
A described F head connector is used for received television signal and data transfer signal, and its signal input part connects coaxial wire, and signal output part connects high pass filter, and another signal output part connects low pass filter;
Described the 2nd F head connector is used for TV signal is transferred to set-top box, and its signal input part connects high pass filter, signal output part junctor top box;
Described high pass filter is used to separate TV signal, and its signal input part connects a F head connector, and signal output part connects the 2nd F head connector;
Described low pass filter is used for the mask data signal, and its signal input part connects a F head connector, and signal output part connects coupling transformer;
Described coupling transformer is used for data-signal is coupled to power line, and its signal input part connects low pass filter, and signal output part connects supply socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041462U CN201479299U (en) | 2009-08-25 | 2009-08-25 | Coupler and radio and television network home system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041462U CN201479299U (en) | 2009-08-25 | 2009-08-25 | Coupler and radio and television network home system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479299U true CN201479299U (en) | 2010-05-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202041462U Expired - Fee Related CN201479299U (en) | 2009-08-25 | 2009-08-25 | Coupler and radio and television network home system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917541A (en) * | 2010-07-21 | 2010-12-15 | 深圳创维数字技术股份有限公司 | Wireless set-top box |
-
2009
- 2009-08-25 CN CN2009202041462U patent/CN201479299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917541A (en) * | 2010-07-21 | 2010-12-15 | 深圳创维数字技术股份有限公司 | Wireless set-top box |
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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 |
Granted publication date: 20100519 Termination date: 20150825 |
|
| EXPY | Termination of patent right or utility model |