CN101742214A - Method and device for transmitting 100BASE-T Ethernet signals and CATV signals by utilizing coaxial cable - Google Patents
Method and device for transmitting 100BASE-T Ethernet signals and CATV signals by utilizing coaxial cable Download PDFInfo
- Publication number
- CN101742214A CN101742214A CN200910273107A CN200910273107A CN101742214A CN 101742214 A CN101742214 A CN 101742214A CN 200910273107 A CN200910273107 A CN 200910273107A CN 200910273107 A CN200910273107 A CN 200910273107A CN 101742214 A CN101742214 A CN 101742214A
- Authority
- CN
- China
- Prior art keywords
- signal
- circuit
- coaxial cable
- access device
- transmitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to method and device for transmitting 100BASE-T Ethernet signals and CATV (Community Antenna Television) signals by utilizing a coaxial cable. The device consists of local side access equipment, a coaxial cable, a terminal access device and a user terminal, wherein digital network signals of the local side access equipment are fed in the coaxial cable and then are transmitted to the terminal access device through the coaxial cable, and the terminal access device is connected with the user terminal through the cable so that the broadband access is realized. The device is characterized in that a signal transforming module is arranged in each output port of the local side access equipment and the terminal access device, and the user terminal is connected with other networks through the signal transforming modules. The invention not only utilizes the coaxial cable to transmit the CATV signals, but also realizes the data communication of multiple protocols so as to enhance the utilization benefit of a coaxial cable network and simultaneously solve the problems existing in the access and the data communication of a broadband network with low cost.
Description
Technical field
The invention belongs to a kind of transmission method of 100BASE-T ethernet signal, particularly a kind of method and 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 invention is to provide a kind of method and 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 present invention is made of local side access device, coaxial cable, terminal access device and user terminal, wherein in the digital network signals feed-in coaxial cable of local side access device, digital network signals is sent to the terminal access device by coaxial cable, the terminal access device is connected with user terminal by cable, realize broadband access, be characterized in: be provided with a signal conversion module in each output port of local side access device and terminal access device, user terminal links by signal conversion module and other network.
The digital network signals of above-mentioned local side access device and terminal access device is to be fed in the coaxial cable by high-frequency wideband signal wave splitting/composing device.
Above-mentioned signal conversion module is supported 10base-T, (Ethernet) digital coding of 100BASE-T Ethernet and communication mode.
Above-mentioned high-frequency wideband Signal Separation/blender is that cable TV signal and digital network signals are carried out partial wave simultaneously or close ripple, and does not disturb mutually.
Above-mentioned local side access device converts the communication mode of multiple different agreement, interface, speed to the unified signal that satisfies 10base-T and 100BASE-T communication standard, and by the coaxial cable transmission, communicates by letter with realization between subscriber terminal equipment.
Above-mentioned terminal access device realizes that from two different ports signal receives/send out with cable TV signal and digital network signals simultaneously.
The present invention also provides a kind of device that utilizes coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal, this device 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 present invention not only utilizes coax network to transmit the CATV signal, can also realize the broadband data communication of various protocols, make the present invention 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 a system principle diagram of the present invention.
Fig. 2 is a signal conversion module theory diagram of the present invention.
Fig. 3 is a signal processing circuit theory diagram of the present invention.
Fig. 4 is a signal amplification circuit schematic diagram of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The present invention 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 invention 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 specification of the present invention belongs to this professional domain technical staff known prior art.
Claims (10)
1. method of utilizing coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal, by the local side access device, coaxial cable, terminal access device and user terminal constitute, wherein in the digital network signals feed-in coaxial cable of local side access device, digital network signals is sent to the terminal access device by coaxial cable, the terminal access device is connected with user terminal by cable, realize broadband access, be characterized in: be provided with a signal conversion module in each output port of local side access device and terminal access device, user terminal links by signal conversion module and other network.
2. a kind of method of utilizing coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 1 is characterized in that: the digital network signals of local side access device is to be fed in the coaxial cable by high-frequency wideband signal wave splitting/composing.
3. a kind of method of utilizing coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 1 is characterized in that: signal conversion module is supported the data communication mode of 10base-T and 100BASE-T Ethernet.
4. a kind of method of utilizing coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 2, it is characterized in that: high-frequency wideband signal wave splitting/composing device separates cable TV signal simultaneously or mixes with digital network signals, and does not disturb mutually.
5. a kind of method of utilizing coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 1, it is characterized in that: the local side access device converts the communication mode of multiple different agreement, interface, speed to the unified signal that satisfies 10base-T and 100BASE-T communication standard, and, communicate by letter with realization between the terminal access device by the coaxial cable transmission.
6. a kind of method of utilizing coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 1 is characterized in that: the user terminal access device realizes that from two different ports signal receives/send out with cable TV signal and digital network signals simultaneously.
7. 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.
8. a kind of device that utilizes coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 7, 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.
9. as claim 7 or 8 described a kind of devices that utilize coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal, 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.
10. a kind of device that utilizes coaxial cable transmitting 100 BASE-T ethernet signal and CATV signal as claimed in claim 9, 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 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910273107A CN101742214A (en) | 2009-12-08 | 2009-12-08 | Method and device for transmitting 100BASE-T Ethernet signals and CATV signals by utilizing coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910273107A CN101742214A (en) | 2009-12-08 | 2009-12-08 | Method and device for transmitting 100BASE-T Ethernet signals and CATV signals by utilizing coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101742214A true CN101742214A (en) | 2010-06-16 |
Family
ID=42465002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910273107A Pending CN101742214A (en) | 2009-12-08 | 2009-12-08 | Method and device for transmitting 100BASE-T Ethernet signals and CATV signals by utilizing coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101742214A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403688A (en) * | 2011-08-31 | 2012-04-04 | 刘彩声 | Adapter device |
| CN102457417A (en) * | 2010-10-27 | 2012-05-16 | 上海澳润通信技术有限公司 | Coaxial network transforming device for 100M Ethernet |
| CN103563263A (en) * | 2011-03-31 | 2014-02-05 | Abb技术有限公司 | Connecting device, system and method for signal transmission between a control centre and at least one field device in an industrial installation |
| CN106161160A (en) * | 2016-08-16 | 2016-11-23 | 北京邦天信息技术有限公司 | A kind of coaxial cable broadband network-building method and network system |
-
2009
- 2009-12-08 CN CN200910273107A patent/CN101742214A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457417A (en) * | 2010-10-27 | 2012-05-16 | 上海澳润通信技术有限公司 | Coaxial network transforming device for 100M Ethernet |
| CN103563263A (en) * | 2011-03-31 | 2014-02-05 | Abb技术有限公司 | Connecting device, system and method for signal transmission between a control centre and at least one field device in an industrial installation |
| CN102403688A (en) * | 2011-08-31 | 2012-04-04 | 刘彩声 | Adapter device |
| CN106161160A (en) * | 2016-08-16 | 2016-11-23 | 北京邦天信息技术有限公司 | A kind of coaxial cable broadband network-building method and network system |
| CN106161160B (en) * | 2016-08-16 | 2019-05-17 | 北京邦天信息技术有限公司 | A kind of coaxial cable broadband network-building method and network system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204794909U (en) | A RF power amplifier for coupling resonance wireless power transmission device | |
| CN106357222A (en) | Doherty power amplifier circuit | |
| CN101742214A (en) | Method and device for transmitting 100BASE-T Ethernet signals and CATV signals by utilizing coaxial cable | |
| CN1889504A (en) | Coaxle cable exchanging system and method | |
| CN203387508U (en) | Novel multi-network-fusion indoor distribution system | |
| CN205356276U (en) | Broadband power amplification circuit | |
| CN201611926U (en) | Device for transmitting 100BASE-T Ethernet signals and CATV signals through coaxial cable | |
| CN201893784U (en) | Digital radiofrequency remote system based on network cable transmission | |
| CN201274467Y (en) | Indoor signal coverage system and repeater applied to the system | |
| CN202059409U (en) | Zero line-data line coupling mode low pressure power line communication system | |
| CN204305021U (en) | The AISG tower amplifier OOK modulation-demodulation circuit that data can return | |
| CN204790990U (en) | Audio signal loudness automatic control | |
| CN108111824B (en) | A kind of long-distance video monitoring Transmission system | |
| CN103684305A (en) | Wireless network intelligent amplifier | |
| CN203618086U (en) | Video signal transmission system based on twisted pairs | |
| CN201467260U (en) | Set-top box with gateway function | |
| CN202077016U (en) | Duplex communication circuit and mobile communication terminal | |
| CN202737864U (en) | Relay device suitable for point-to-multipoint broadband coaxial access | |
| CN206650761U (en) | One kind surpasses 5 class netting twines and realizes remote VGA signals and multiplexing and distributor | |
| CN201623710U (en) | Digital fiber zooming system with both GSM and WCDMA | |
| CN207753721U (en) | A kind of fibre-optical dispersion electronic compensating and flatness compensation circuit | |
| CN203775240U (en) | DPD MCPA (Digital Pre-Distortion Multi-Carrier Power Amplifier) feedback device and MCPA equipment | |
| CN204967998U (en) | Clear audio frequency surround processor that imbeds of high standard | |
| CN201957185U (en) | Television integrated machine with Cable Modem function | |
| CN205377877U (en) | Big data transmission system based on big dipper generation communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100616 |