CN201611926U - Device for transmitting 100BASE-T Ethernet signals and CATV signals through coaxial cable - Google Patents
Device for transmitting 100BASE-T Ethernet signals and CATV signals through coaxial cable Download PDFInfo
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- CN201611926U CN201611926U CN2009202888816U CN200920288881U CN201611926U CN 201611926 U CN201611926 U CN 201611926U CN 2009202888816 U CN2009202888816 U CN 2009202888816U CN 200920288881 U CN200920288881 U CN 200920288881U CN 201611926 U CN201611926 U CN 201611926U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000003321 amplification Effects 0.000 claims description 27
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 2
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- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
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- 230000015572 biosynthetic process Effects 0.000 description 1
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Abstract
The utility model relates to a device for transmitting 100BASE-T Ethernet signals and CATV signals through a coaxial cable, which comprises local terminal access equipment, a coaxial cable, a terminal access device and a user terminal, wherein the digital network signals from the local terminal access equipment are fed into the coaxial cable; the digital network signals are transmitted to the terminal access device through the coaxial cable; and the terminal access device is connected with the user terminal through a cable, therefore, broadband access is realized. The device is characterized in that two signal conversion modules are respectively arranged in each output terminal of the local terminal access equipment and the terminal access device, and the user terminal is connected with other networks through the signal conversion modules. As the device not only transmits CATV signals though the coaxial cable, but also can realize the data communication among various protocols, the device improves the utilization benefit of a coaxial cable network, and simultaneously low cost solves the problems of broadband network access and data communication.
Description
Technical field
The utility model belongs to a kind of transmission method of 100BASE-T ethernet signal, particularly a kind of device that utilizes coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal.
Background technology
At present, the broadband networks technology develops rapidly, particularly be also just progressively ripe application of base band EOC (Ethernet Over Coax) technology of transmission medium with the coaxial cable, coaxial cable can not only transmit CATV TV signal, WiFi radiofrequency signal and 2G/3G wireless signal, but also can transmit the 10base-T ethernet signal, make the utilization ratio of coaxial cable improve greatly, also reduced maintenance cost simultaneously.But along with broadband network technology continues development, the requirement of user's access rate is also more and more higher, and in a lot of urban plannings, user's access rate reaches 20M, 60M or higher, and 10M user's access rate can not satisfy the requirement of message transmission.The following utility model patent (table 1) that Patent Office of State Intellectual Property Office has been authorized exists its range of application that circumscribed defective is arranged though solved the method that broadband networks inserts under certain condition.
Table 1:
| Cable tv coax Ethernet transmitting device with pre-matching network | The herdsman | 200620157384.9 | 2006-11-16 |
| The adapter of Ethernet interface and coaxial cable interface | The herdsman | 200620157383.4 | 2006-11-16 |
| The separator of network signal and TV signal | The herdsman | 200620163860.8 | 2006-12-15 |
| The addressable module of collection cable TV signal and Ethernet data transmission | The herdsman | 200720085497.7 | 2007-6-28 |
| Ethernet transmitting device based on cable tv coax | Sincere source, Wuhan | 200620098189.3 | 2006-7-31 |
| A kind of wide band multi-business multiplexer based on coaxial cable | The herdsman | 200720086792.4 | 2007-8-31 |
Summary of the invention
The purpose of this utility model provides a kind of device that can utilize coaxial cable transmitting 100 BASE-T network signal and CATV signal, to overcome the deficiencies in the prior art.
To achieve these goals, the utility model is connected and composed by coaxial cable and terminal access device by the local side access device, the terminal access device is connected with user terminal by cable, is characterized in: comprise signal conversion module in local side access device and terminal access device.
Above-mentioned signal conversion module comprises signal conversion circuit, signal processing circuit, closes ripple/channel splitting circuit and terminal interface circuit, wherein signal conversion circuit by signal processing circuit with close ripple/channel splitting circuit and be connected and realize both-way communication, signal closes ripple/channel splitting circuit and is connected with the terminal interface circuit, terminal interface comprises 100BASE-T ethernet signal port and CATV signal port, and signal processing circuit is connected and composed in regular turn by signal amplification, signal compensation, signal correction and mixing/split circuit.
Because the utility model not only utilizes coax network to transmit the CATV signal, can also realize the broadband data communication of various protocols, make the utility model improve the benefit of utilizing of coax network, low-cost simultaneously access and the existing problem of data communication that has solved broadband network.
Description of drawings
Fig. 1 is the utility model system principle diagram.
Fig. 2 is the utility model signal conversion module theory diagram.
Fig. 3 is the utility model signal processing circuit theory diagram.
Fig. 4 is the utility model signal amplification circuit schematic diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
The utility model is connected with the user terminal access device by coaxial cable by the local side access device and constitutes, (Fig. 1), the terminal access device is connected with user terminal by cable, in each output port of local side access device and terminal access device, be provided with a signal conversion module, signal conversion module comprises signal conversion circuit, signal processing circuit, close ripple/channel-splitting filter circuit and terminal interface circuit, wherein signal conversion circuit closes ripple/channel splitting circuit by signal processing circuit and signal and is connected and realizes two-way communication, signal closes ripple/channel splitting circuit and is connected with the terminal interface circuit, the user terminal interface comprises 100BASE-T ethernet port and CATV signal port (Fig. 2), signal processing circuit is by the signal equalization circuit, signal amplification circuit, peaking circuit, transmitting-receiving mixing/split circuit connects formation (Fig. 3) in regular turn, realizes two-way communication each other.
The physical circuit of signal processing module of the present utility model is:
1, the signal conversion circuit of transmission signal TX in signal conversion module by the twisted-pair feeder input, after becoming non-equilibrium input signal from balanced input signal, the input of the first signal equalization circuit in the entering signal treatment circuit, the output of the first signal equalization circuit is connected with the input of first signal amplification circuit, the output of first signal amplification circuit links to each other with the first peaking circuit input, the output of first peaking circuit is connected with the transmitting terminal of transmitting-receiving mixing/split circuit, the output of transmitting-receiving mixing/split circuit links to each other with the low go side that the signal in the signal processing module closes ripple/channel splitting circuit, the high go side that signal closes ripple/channel splitting circuit is connected with the cable TV input, and signal closes the output of ripple/channel splitting circuit mixed signal is sent in the coaxial cable.
2, send into the signal of user port from coaxial cable, after closing ripple/channel splitting circuit, signal enters the transmitting-receiving mixing/split circuit in the signal conversion module, transmitting-receiving mixing/split circuit links to each other by the secondary signal correcting circuit this signal with the input of secondary signal amplifying circuit, the output of secondary signal amplifying circuit links to each other with secondary signal correcting circuit input, the input of the signal conversion circuit in the output of secondary signal correcting circuit and the signal transformation module is connected, and the output of signal conversion circuit outputs signal to the RX receiving terminal of twisted-pair feeder.
The main effect of described signal equalization circuit is the high boost with input signal, too much loses with compensating signal high-frequency signal in the transport process in coaxial cable.
The main effect of the anti-big circuit of described signal is the level amplitude lifting with input signal, with the loss of signal of compensating signal in processing and transport process.
The distortion that produces in the signal processing is proofreaied and correct in the main effect of described peaking circuit.
Described signal amplification circuit constitutes (Fig. 4) by inductor L1, capacitor C1～C4, resistor R 1～R5 and amplification module N1, wherein:
The end of inductor L1 links to each other with input signal, and the other end of inductor L1 is connected with the normal phase input end of amplification module N1 by capacitor C1;
The power positive end of amplification module N1 links to each other with the anodal VCC of power supply by resistor R 3; The normal phase input end of amplification module N1 links to each other with the anodal VCC of power supply by resistor R 1, joins by the negative pole of resistor R 2 with power supply simultaneously; The negative-phase input of amplification module N1 links to each other with the negative pole of power supply by resistor R 4; The output output amplifying signal of amplification module N1;
The anodal VCC of power supply is connected with the negative pole of power supply by capacitor C2;
Also be connected with a feedback resistor R5 between the output of the negative-phase input of amplification module N1 and amplification module N1;
The power positive end of amplification module N1 also is connected with the negative pole of power supply with capacitor C4 by the capacitor C3 of parallel connection.
The content that is not described in detail in the utility model specification belongs to this professional domain technical staff known prior art.
Claims (4)
1. device that utilizes coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal, connect and compose by coaxial cable and terminal access device by the local side access device, the terminal access device is connected with user terminal by cable, it is characterized in that: comprise signal conversion module in local side access device and terminal access device.
2. a kind of device that utilizes coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 1, it is characterized in that: signal conversion module comprises signal conversion circuit, signal processing circuit, close ripple/channel splitting circuit and terminal interface circuit, wherein signal conversion circuit by signal processing circuit with close ripple/channel splitting circuit and be connected and realize both-way communication, signal closes ripple/channel splitting circuit and is connected with the terminal interface circuit, terminal interface comprises 100BASE-T ethernet signal port and CATV signal port, and signal processing circuit is amplified by signal, signal compensation, signal correction and mixing/split circuit connect and compose in regular turn.
3. a kind of device that utilizes coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 1 or 2, it is characterized in that: the physical circuit of signal conversion module is:
1) signal conversion circuit of transmission signal TX in signal conversion module of importing by twisted-pair feeder, after becoming non-equilibrium input signal from balanced input signal, the input of the first signal equalization circuit in the entering signal treatment circuit, the output of the first signal equalization circuit is connected with the input of first signal amplification circuit, the output of first signal amplification circuit links to each other with the first peaking circuit input, the output of first peaking circuit is connected with the transmitting terminal of transmitting-receiving mixing/split circuit, the output of transmitting-receiving mixing/split circuit links to each other with the low go side that the signal in the signal processing module closes ripple/channel splitting circuit, the high go side that signal closes ripple/channel splitting circuit is connected with the cable TV input, and signal closes the output of ripple/channel splitting circuit mixed signal is sent in the coaxial cable;
2) send into the signal of user port from coaxial cable, after closing ripple/channel splitting circuit, signal enters the transmitting-receiving mixing/split circuit in the signal conversion module, transmitting-receiving mixing/split circuit links to each other by the secondary signal correcting circuit this signal with the input of secondary signal amplifying circuit, the output of secondary signal amplifying circuit links to each other with secondary signal correcting circuit input, the input of the signal conversion circuit in the output of secondary signal correcting circuit and the signal transformation module is connected, and the output of signal conversion circuit outputs signal to the RX receiving terminal of twisted-pair feeder.
4. a kind of device that utilizes coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 3, it is characterized in that: described signal amplification circuit is made of inductor L1, capacitor C1～C4, resistor R 1～R5 and amplification module N1, wherein:
The end of inductor L1 links to each other with input signal, and the other end of inductor L1 is connected with the normal phase input end of amplification module N1 by capacitor C1;
The power positive end of amplification module N1 links to each other with the anodal VCC of power supply by resistor R 3; The normal phase input end of amplification module N1 links to each other with the anodal VCC of power supply by resistor R 1, joins by the negative pole of resistor R 2 with power supply simultaneously; The negative-phase input of amplification module N1 links to each other with the negative pole of power supply by resistor R 4; The output output amplifying signal of amplification module N1;
The anodal VCG of power supply is connected with the negative pole of power supply by capacitor C2;
Also be connected with a feedback resistor R5 between the output of the negative-phase input of amplification module N1 and amplification module N1;
The power positive end of amplification module N1 also is connected with the negative pole of power supply with capacitor C4 by the capacitor C 3 of parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202888816U CN201611926U (en) | 2009-12-08 | 2009-12-08 | Device for transmitting 100BASE-T Ethernet signals and CATV signals through coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202888816U CN201611926U (en) | 2009-12-08 | 2009-12-08 | Device for transmitting 100BASE-T Ethernet signals and CATV signals through coaxial cable |
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| Publication Number | Publication Date |
|---|---|
| CN201611926U true CN201611926U (en) | 2010-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202888816U Expired - Fee Related CN201611926U (en) | 2009-12-08 | 2009-12-08 | Device for transmitting 100BASE-T Ethernet signals and CATV signals through coaxial cable |
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| CN (1) | CN201611926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016127537A1 (en) * | 2015-02-09 | 2016-08-18 | 杭州海康威视数字技术股份有限公司 | Back-end processing circuit, front-end processing circuit, and coaxial power supply circuit |
-
2009
- 2009-12-08 CN CN2009202888816U patent/CN201611926U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016127537A1 (en) * | 2015-02-09 | 2016-08-18 | 杭州海康威视数字技术股份有限公司 | Back-end processing circuit, front-end processing circuit, and coaxial power supply circuit |
| US10142586B2 (en) | 2015-02-09 | 2018-11-27 | Hangzhou Hikvision Digital Technology Co., Ltd. | Front-end and back-end processing circuits and POC circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUBEI MMR NETWORK TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WUHAN MMR NETWORK MANAGEMENT SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20120208 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 430078 WUHAN, HUBEI PROVINCE TO: 430070 WUHAN, HUBEI PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120208 Address after: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 114 Building No. 1, No. 304 Patentee after: HUBEI MMR NETWORK TECHNOLOGY CO., LTD. Address before: 430078 Hubei city of Wuhan province East Lake Development Zone Himalaya road two Guanshan Park Patentee before: Wuhan MMR Network Management Science & Technology Corp. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Device for transmitting 100BASE-T Ethernet signals and CATV signals through coaxial cable Effective date of registration: 20130426 Granted publication date: 20101020 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: HUBEI MMR NETWORK TECHNOLOGY CO., LTD. Registration number: 2013420000003 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140106 Granted publication date: 20101020 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: HUBEI MMR NETWORK TECHNOLOGY CO., LTD. Registration number: 2013420000003 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Device for transmitting 100BASE-T Ethernet signals and CATV signals through coaxial cable Effective date of registration: 20140121 Granted publication date: 20101020 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: HUBEI MMR NETWORK TECHNOLOGY CO., LTD. Registration number: 2014420000001 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140106 Granted publication date: 20101020 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: HUBEI MMR NETWORK TECHNOLOGY CO., LTD. Registration number: 2013420000003 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20141225 Granted publication date: 20101020 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: HUBEI MMR NETWORK TECHNOLOGY CO., LTD. Registration number: 2014420000001 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: HUBEI MMR NETWORK TECHNOLOGY CO., LTD. Document name: Notification of Termination of Patent Right |
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| 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: 20101020 Termination date: 20151208 |