CN105847732A - Separating and synthesizing device for CATV RF signal and ethernet data signal - Google Patents
Separating and synthesizing device for CATV RF signal and ethernet data signal Download PDFInfo
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- CN105847732A CN105847732A CN201610297851.6A CN201610297851A CN105847732A CN 105847732 A CN105847732 A CN 105847732A CN 201610297851 A CN201610297851 A CN 201610297851A CN 105847732 A CN105847732 A CN 105847732A
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- coil
- signal
- pass filter
- cable interface
- coaxial cable
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/106—Adaptations for transmission by electrical cable for domestic distribution
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a separating and synthesizing device for a CATV RF signal and an ethernet data signal. The separating and synthesizing device comprises an RF signal input coaxial cable interface, an RF signal output coaxial cable interface, an ethernet utp-5 twisted pair cable interface, a high-pass filter, a low-pass filer and a two/four-wire conversion circuit. The RF signal input coaxial cable interface is respectively connected with the input ends of the high-pass filer and the low-pass filter. The output end of the high-pass filter is connected with the RF signal output coaxial cable interface. The two-wire output end of the low-pass filter is connected with the input end of the two/four-wire conversion circuit. The output end of the two/four-wire conversion circuit is connected with the ethernet utp-5 twisted pair cable interface. The two/four-wire conversion circuit is formed by an annular ferrite bead and a coil winding which winds the annular ferrite bead. With application of the method, separation and synthesis of the CATV RF signal and the ethernet data signal in co-cable transmission on the coaxial cable can be realized, and CATV and broadband data internet services can be provided for users by using one coaxial cable.
Description
Technical field
The present invention relates to broadcasting and TV communication technical field, particularly relate to the RF signal of a kind of CATV and the separation of Ethernet data signal and synthesizer.
Background technology
The RF signal of CATV all transmits with coaxial cable now, Ethernet data signal all uses super Category-5 twisted pair cable to be transmitted, so cause radio and TV operator when providing CATV for user and wideband data accesses simultaneously, must register one's residence with the such two kinds of cables of coaxial cable and super Category-5 twisted pair cable, cause the difficulty of construction and wiring cost to increase.
Summary of the invention
The technical problem that present invention mainly solves is to provide the RF signal of a kind of CATV and the separation of Ethernet data signal and synthesizer, separation when being capable of the RF signal of CATV and Ethernet data signal co-cable transmission on coax and synthesis, just can provide the user CATV and wideband data business of networking with a coaxial cable.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide the RF signal of a kind of CATV and the separation of Ethernet data signal and synthesizer, including: RF signal input coaxial cable interface, RF signal output coaxial cable interface, Ethernet surpass Category-5 twisted pair cable interface, high-pass filter, low pass filter and two/tetra-line change-over circuits；Described RF signal input coaxial cable interface is coupled with the input of high-pass filter and low pass filter, the output termination RF signal output coaxial cable interface of high-pass filter, two line output terminals of low pass filter connect the input of two/tetra-line change-over circuits, and the output termination Ethernet of two/tetra-line change-over circuits surpasses Category-5 twisted pair cable interface；Described two/tetra-line change-over circuits form by 2 circular ferrite magnet rings with rotating around 8 coil windings thereon.
Preferably, described circular ferrite magnet ring includes the first magnet ring and the second magnet ring；Described coil windings includes coil 1-2, coil 3-4, coil 5-6, coil 1 '-2 ', coil 3 '-4 ', coil 5 '-6 ', coil 3 "-4 " and coil 5 "-6 "；Described coil 1-2 and coil 1 '-2 ' be wound on the first magnet ring, described coil 3-4, coil 3 '-4 ' and coil 3 "-4 ", coil 5-6, coil 5 '-6 ' and coil 5 "-6 " be wound on the second magnet ring；Described coil 3 "-4 " with coil 5 "-6 " connect, coil 1 '-2 ' two ends respectively with coil 3-4 and coil 3 '-4 ' is connected, and coil 5-6 is connected with coil 3-4, coil 5 '-6 ' with coil 3 '-4 ' is connected；Described coil 5-6 and coil 5 '-6 ' 6-6 ' between be connected to the resistance of 100 Ω；Described coil 3 "-4 " and coil 5 "-6 " 3 "-6 " and between formed Rx receiving terminal, the tie point between coil 3-4 and coil 5-6 and coil 5 '-6 ' 6 ' between formation Tx transmitting terminal；Described coil 1-2 is connected with the output of low pass filter, and Rx receiving terminal and Tx transmitting terminal surpass Category-5 twisted pair cable interface and connect with Ethernet.
Preferably, the passband of described low pass filter is 1 ~ 30MHz, and the passband of described high-pass filter is 60 ~ 1000MHz.
The invention has the beneficial effects as follows: the present invention is capable of RF signal and the Ethernet data signal co-cable transmission on coax of CATV.
Accompanying drawing explanation
Fig. 1 is the separation structural representation with synthesizer one preferred embodiment of the RF signal of CATV of the present invention and Ethernet data signal；
Fig. 2 is separation and the structural representation of two/tetra-line change-over circuits in synthesizer of the RF signal of shown CATV and Ethernet data signal.
Detailed description of the invention
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
Referring to Fig. 1 and Fig. 2, the embodiment of the present invention includes:
The RF signal of a kind of CATV and the separation of Ethernet data signal and synthesizer, including: RF signal input coaxial cable interface, RF signal output coaxial cable interface, Ethernet surpass Category-5 twisted pair cable interface, high-pass filter, low pass filter and two/tetra-line change-over circuits；Being bi-direction data signal due to transmit during computer internet, described low pass filter and two/tetra-line change-over circuits are all the parts of energy two-way operation；Frequency range at Coaxial Cables data-signal is that 1 ~ 20MHz, FM broadcast and the frequency range of TV signal is 88 ~ 850MHz, so the passband of low pass filter is 1 ~ 30MHz, the passband of described high-pass filter is 60 ~ 1000MHz；Described RF signal input coaxial cable interface is coupled with the input of high-pass filter and low pass filter, the output termination RF signal output coaxial cable interface of high-pass filter, two line output terminals of low pass filter connect the input of two/tetra-line change-over circuits, the output termination Ethernet of two/tetra-line change-over circuits surpasses Category-5 twisted pair cable interface, for the base band transmission of Ethernet data signal；Described two/tetra-line change-over circuits form by 2 circular ferrite magnet rings with rotating around 8 coil windings thereon.Described circular ferrite magnet ring includes the first magnet ring and the second magnet ring；Described coil windings includes coil 1-2, coil 3-4, coil 5-6, coil 1 '-2 ', coil 3 '-4 ', coil 5 '-6 ', coil 3 "-4 " and coil 5 "-6 ", the Same Name of Ends bullet of 8 windings represents；Described coil 1-2 and coil 1 '-2 ' be wound on the first magnet ring, described coil 3-4, coil 3 '-4 ' and coil 3 "-4 ", coil 5-6, coil 5 '-6 ' and coil 5 "-6 " be wound on the second magnet ring；Described coil 3 "-4 " with coil 5 "-6 " connect, coil 1 '-2 ' two ends respectively with coil 3-4 and coil 3 '-4 ' is connected, and coil 5-6 is connected with coil 3-4, coil 5 '-6 ' with coil 3 '-4 ' is connected；Described coil 5-6 and coil 5 '-6 ' 6-6 ' between be connected to the resistance of 100 Ω；Described coil 3 "-4 " and coil 5 "-6 " 3 "-6 " and between formed Rx receiving terminal, the tie point between coil 3-4 and coil 5-6 and coil 5 '-6 ' 6 ' between formation Tx transmitting terminal；Described coil 1-2 is connected with the output of low pass filter, and Rx receiving terminal and Tx transmitting terminal surpass the corresponding pin of Category-5 twisted pair cable interface and connect with Ethernet.
The present invention can realize RF signal and the Ethernet data signal co-cable transmission on coax of CATV, overcoming two kinds of signals divides cable to transmit the shortcoming that difficult wiring, construction trouble and the cost brought increases, and is conducive to realizing " integration of three networks " on tradition Broadcasting Cable Network.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (3)
1. the RF signal of a CATV and the separation of Ethernet data signal and synthesizer, it is characterized in that, including: RF signal input coaxial cable interface, RF signal output coaxial cable interface, Ethernet surpass Category-5 twisted pair cable interface, high-pass filter, low pass filter and two/tetra-line change-over circuits；Described RF signal input coaxial cable interface is coupled with the input of high-pass filter and low pass filter, the output termination RF signal output coaxial cable interface of high-pass filter, two line output terminals of low pass filter connect the input of two/tetra-line change-over circuits, and the output termination Ethernet of two/tetra-line change-over circuits surpasses Category-5 twisted pair cable interface；Described two/tetra-line change-over circuits form by 2 circular ferrite magnet rings with rotating around 8 coil windings thereon.
The RF signal of CATV the most according to claim 1 and the separation of Ethernet data signal and synthesizer, it is characterised in that: described circular ferrite magnet ring includes the first magnet ring and the second magnet ring；Described coil windings includes coil 1-2, coil 3-4, coil 5-6, coil 1 '-2 ', coil 3 '-4 ', coil 5 '-6 ', coil 3 "-4 " and coil 5 "-6 "；Described coil 1-2 and coil 1 '-2 ' be wound on the first magnet ring, described coil 3-4, coil 3 '-4 ' and coil 3 "-4 ", coil 5-6, coil 5 '-6 ' and coil 5 "-6 " be wound on the second magnet ring；Described coil 3 "-4 " with coil 5 "-6 " connect, coil 1 '-2 ' two ends respectively with coil 3-4 and coil 3 '-4 ' is connected, and coil 5-6 is connected with coil 3-4, coil 5 '-6 ' with coil 3 '-4 ' is connected；Described coil 5-6 and coil 5 '-6 ' 6-6 ' between be connected to the resistance of 100 Ω；Described coil 3 "-4 " and coil 5 "-6 " 3 "-6 " and between formed Rx receiving terminal, the tie point between coil 3-4 and coil 5-6 and coil 5 '-6 ' 6 ' between formation Tx transmitting terminal；Described coil 1-2 is connected with the output of low pass filter, and Rx receiving terminal and Tx transmitting terminal surpass Category-5 twisted pair cable interface and connect with Ethernet.
The RF signal of CATV the most according to claim 2 and the separation of Ethernet data signal and synthesizer, it is characterised in that: the passband of described low pass filter is 1 ~ 30MHz, and the passband of described high-pass filter is 60 ~ 1000MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610297851.6A CN105847732A (en) | 2016-05-06 | 2016-05-06 | Separating and synthesizing device for CATV RF signal and ethernet data signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610297851.6A CN105847732A (en) | 2016-05-06 | 2016-05-06 | Separating and synthesizing device for CATV RF signal and ethernet data signal |
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| Publication Number | Publication Date |
|---|---|
| CN105847732A true CN105847732A (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610297851.6A Pending CN105847732A (en) | 2016-05-06 | 2016-05-06 | Separating and synthesizing device for CATV RF signal and ethernet data signal |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514590Y (en) * | 2001-11-29 | 2002-10-02 | 向祖璧 | Data television signal mixer |
| CN200941620Y (en) * | 2006-07-31 | 2007-08-29 | 武汉诚源科技有限责任公司 | Ethernet transmitter based on wired TV coaxial cable |
| CN201215995Y (en) * | 2008-05-21 | 2009-04-01 | 武汉丰天信息网络有限公司 | Data through type branch, distributor |
| CN101437165A (en) * | 2007-11-15 | 2009-05-20 | 襄樊博创伟业电子有限公司 | Apparatus for multiplexing and demultiplexing data and television signal |
| CN103036708A (en) * | 2012-11-27 | 2013-04-10 | 陕西天思信息科技有限公司 | Point-to-point low frequency modulation ethernet over coax (EOC) device |
| CN204244364U (en) * | 2014-11-18 | 2015-04-01 | 绍兴奥顿电子有限公司 | A kind of IP cable extension transmitter |
| CN205792978U (en) * | 2016-05-06 | 2016-12-07 | 苏州市职业大学 | The RF signal of CATV and the separation of Ethernet data signal and synthesizer |
-
2016
- 2016-05-06 CN CN201610297851.6A patent/CN105847732A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514590Y (en) * | 2001-11-29 | 2002-10-02 | 向祖璧 | Data television signal mixer |
| CN200941620Y (en) * | 2006-07-31 | 2007-08-29 | 武汉诚源科技有限责任公司 | Ethernet transmitter based on wired TV coaxial cable |
| CN101437165A (en) * | 2007-11-15 | 2009-05-20 | 襄樊博创伟业电子有限公司 | Apparatus for multiplexing and demultiplexing data and television signal |
| CN201215995Y (en) * | 2008-05-21 | 2009-04-01 | 武汉丰天信息网络有限公司 | Data through type branch, distributor |
| CN103036708A (en) * | 2012-11-27 | 2013-04-10 | 陕西天思信息科技有限公司 | Point-to-point low frequency modulation ethernet over coax (EOC) device |
| CN204244364U (en) * | 2014-11-18 | 2015-04-01 | 绍兴奥顿电子有限公司 | A kind of IP cable extension transmitter |
| CN205792978U (en) * | 2016-05-06 | 2016-12-07 | 苏州市职业大学 | The RF signal of CATV and the separation of Ethernet data signal and synthesizer |
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Application publication date: 20160810 |
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