CN200941620Y - Ethernet transmitter based on wired TV coaxial cable - Google Patents
Ethernet transmitter based on wired TV coaxial cable Download PDFInfo
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- CN200941620Y CN200941620Y CN 200620098189 CN200620098189U CN200941620Y CN 200941620 Y CN200941620 Y CN 200941620Y CN 200620098189 CN200620098189 CN 200620098189 CN 200620098189 U CN200620098189 U CN 200620098189U CN 200941620 Y CN200941620 Y CN 200941620Y
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Abstract
The utility model relates to a Ethernet transmission device based on cable television coaxial line, which comprises a hub and at least one user terminal; the input end of the hub is connected with the input signal of the cable television, the output end of the hub is connected with the user terminal through cable television coaxial line; the output end of the user terminal is connected with the user television set. The utility model is characterized in that the Ethernet data signal is also connected with hub, the Ethernet data signal is also connected with user terminal through cable television coaxial line; and the user terminal is connected with user computer through RJ45 port. Because the utility model only uses cable television coaxial line to transmit cable television signal and Ethernet data signal at the same time, the shortcoming of the present technique that needs two transmission lines to respectively transmit cable television signal and Ethernet data signal is overcome.
Description
Technical field
The utility model belongs to a kind of Ethernet data signal transmitting apparatus, is a kind of Ethernet transmitting device based on cable tv coax specifically.
Background technology
The method of cable TV signal commonly used at present and the transmission of Ethernet data signal is to access to user terminal by cable tv coax and network transmission line respectively, and this method needs the two-way transmission line, and one the tunnel uses coaxial cable transmission cable TV signal; Network transmission line (being commonly called as category-5 cable) transmission Ethernet data signal is used on another road.So both waste resource, and made construction bother again.
Summary of the invention
The purpose of this utility model provides a kind of Ethernet transmitting device based on cable tv coax that only uses cable tv coax just can transmit cable TV signal and Ethernet data signal simultaneously, to overcome above-mentioned deficiency.
To achieve these goals, the utility model is made of hub and at least one user terminal, wherein the input of hub links to each other with the input signal of cable TV signal, the output of hub joins by cable tv coax and user terminal, the output of user terminal is connected with the television set of user side, be characterized in: on hub, also be connected with the Ethernet data signal, the Ethernet data signal joins by cable tv coax and user terminal equally, and user terminal is connected with the computer of user side by the RJ45 mouth.
Above-mentioned hub is made of balance/nonbalance converter and duplexer filter, wherein an end of balance/nonbalance converter links to each other with the Ethernet data signal by the RJ45 mouth, its other end is connected with the low frequency end LP of duplexer filter, said duplexer filter is a high-pass and low-pass filter, its front end HP links to each other with the input signal of cable TV signal, and its I/O end IO is connected with user terminal by cable tv coax.
Above-mentioned user terminal is made of balance/nonbalance converter and duplexer filter, wherein an end of balance/nonbalance converter links to each other with the computer of user side by the RJ45 mouth, its other end is connected with the low frequency end LP of duplexer filter, said duplexer filter is a high-pass and low-pass filter, its front end HP links to each other with the television set of user side, and its I/O end IO is connected with hub by cable tv coax.
Above-mentioned balance/nonbalance converter is by two transformer apparatus T1, T2, resistor R, two magnetic core coil B1, B2 constitutes, wherein the end of the RX+ in the RJ45 mouth links to each other with the end of magnetic core coil B2 by the primary coil of transformer apparatus T1, TX+ end in the RJ45 mouth joins by the primary coil of transformer apparatus T2 and the other end of magnetic core coil B2, RX-end in the RJ45 mouth and TX-end are respectively by transformer apparatus T1, the secondary coil of T2 is connected with earth terminal GND, resistor R is connected in parallel on the two ends of magnetic core coil B2, is connected with earth terminal GND with the low frequency end LP of duplexer filter respectively at the two ends of the magnetic core coil B1 of totally one magnetic core with magnetic core coil B2.
Above-mentioned duplexer filter is made of inductor L, L1, L2, L8, capacitor C, Cw, C1, C2, C12-C14, wherein the end of inductor L1 links to each other with the low frequency end LP of filter, the other end of inductor L1 joins by capacitor C1 and earth terminal, the other end of inductor L1 also is connected with the end of inductor L with capacitor C2 by the inductor L2 of parallel connection, and the other end of inductor L is connected with the I/O end IO of filter by capacitor C; The front end HP of filter links to each other with earth terminal by capacitor Cw, the front end HP of filter also joins by the end of capacitor C14 and capacitor C12, capacitor C14 is connected with earth terminal with capacitor C13 by scurrying connection inductor L8 with the tie point of capacitor C12, and the other end of C12 is connected with the I/O end IO of filter by capacitor C.
Also be provided with distributor and switch in the above-mentioned hub, the input of distributor links to each other with the input signal of cable TV signal, every road output of distributor respectively with a plurality of duplexer filters in the front end HP of a corresponding duplexer filter join; The input of switch links to each other with the Ethernet data signal, every road output of switch respectively with a plurality of balance/nonbalance converters in the RJ45 mouth of a corresponding balance/nonbalance converter join, the LP end of each balance/nonbalance converter is connected with the low frequency end LP of a corresponding duplexer filter respectively; The I/O end IO of each duplexer filter is connected with a user terminal in a plurality of user terminals by one in the many cable tv coaxs respectively.
Because after the utility model provides a kind of Ethernet data signal transition with balance transmission to become the radio frequency baseband signal of non-equilibrium transmission, mix the equipment of cable transmission altogether with the CATV TV signal, user side then carries out inverse transformation.Take out data-signal and TV signal respectively from the RJ45 mouth and the TV mouth of subscriber box, make the utility model only use cable tv coax just can transmit cable TV signal and Ethernet data signal simultaneously, having overcome needs the two-way transmission line to transmit the defective of cable TV signal and Ethernet data signal respectively in the prior art.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is the utility model balance/nonbalance converter circuit theory diagrams.
Fig. 3 is the utility model duplexer filter circuit theory diagrams.
Fig. 4 is duplexer filter circuit theory diagrams among the utility model embodiment.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
After the utility model hub merges ethernet signal DATE and cable TV signal TV, in coaxial cable, transmit, it supports transparent 2 layers of connection of Ethernet, supports the IEEE802.3 standard, can be regarded as a common RF demultplexer and adds Ethernet switch.Main by 1～16 RF distribution openings, have the Ethernet switch of 1+16 port, and be used for radio circuit composition that this two classes signal is merged.After delivering to the user by drop cable, in subscriber box with Ethernet data signal DATE and TV signal separately, again with data-signal by non-equilibrium-balanced transformation, export from the RJ45 mouth.The utility model can also use as family coaxial cable switch, make up family lan, its course of work is: the data-signal of sending here from ADSL or Ethernet, adopt category-5 cable to enter the utility model, after cable TV signal TV distribution, exchange, mixing, be divided into a plurality of ports, deliver to each room, in subscriber box, take out data-signal and TV signal (Fig. 1) more respectively by coaxial cable.
Embodiment:
The utility model duplexer filter schematic diagram is seen Fig. 4, inductor L, L1～L6, capacitor C1～C11 form the low pass branch road, adopt 6 rank circuit forms, in order to improve stopband attenuation, wherein inductor L4, L5 select 680nH 10% standard colour loop inductance for use, inductor L2, L3, L6, L adopt 470nH10% standard colour loop inductance, and screening is used, and corresponding sensibility reciprocal colour loop inductance is installed in corresponding position; Capacitor C12～C20, inductor L8～L11 forms the high pass branch road, adopts 4 rank circuit forms, and wherein inductor is selected the hollow inductance for use, and capacitor Cw is a high pass branch road building-out capacitor.Capacitor C selects the 104/500V ceramic disc capacitor for use, and effect is that high pressure is isolated, and prevents that big electric current from damaging filter from the common port input.
Duplexer filter of the present utility model utilizes the design of ADS simulation software, adopts multistage circuit and multi-screen to cover cavity iron-clad technology, satisfies technical indicators such as high-isolation, low insertion loss.Components and parts are that paster combines with plug-in unit, it is 2% that patch capacitor is selected error range for use, inductance component is selected two kinds of patterns for use, small sensible weight use the hollow inductance, big sensibility reciprocal adopts the colour loop inductance of definite value, in order to guarantee that technical indicator is stable and reduce to produce debugging work load that colour loop inductance needs screening, utilize the error profile of colour loop inductance, the colour loop inductance that filters out is used in the position that parameter is close.According to design like this, can guarantee that the duplexer filter electric property is stable, the reliability height, it is little to be affected by the external environment, low components and parts cost, production cost.
Balance of the present utility model/nonbalance converter schematic diagram is seen Fig. 2, transformer apparatus T1, T2 Compositional balance/non-equilibrium change-over circuit, and 100 ohm of equilibrium response impedances are converted to non-equilibrium 75 ohm.Resistance R, magnetic core coil B1, B2 form two distributor circuits, and it is synthetic single-ended to play two-wire here, and resistance R is an isolation resistance, and magnetic core coil B1 is an impedance matching box, and magnetic core coil B1 is two distributors.
The content that is not described in detail in this specification belongs to this area professional and technical personnel's known prior art.
Claims (6)
1, a kind of Ethernet transmitting device based on cable tv coax, constitute by hub and at least one user terminal, wherein the input of hub links to each other with the input signal of cable TV signal, the output of hub joins by cable tv coax and user terminal, the output of user terminal is connected with the television set of user side, it is characterized in that: on hub, also be connected with the Ethernet data signal, the Ethernet data signal joins by cable tv coax and user terminal equally, and user terminal is connected with the computer of user side by the RJ45 mouth.
2, the Ethernet transmitting device based on cable tv coax as claimed in claim 1, it is characterized in that: hub is made of balance/nonbalance converter and duplexer filter, wherein an end of balance/nonbalance converter links to each other with the Ethernet data signal by the RJ45 mouth, its other end is connected with the low frequency end LP of duplexer filter, said duplexer filter is a high-pass and low-pass filter, its front end HP links to each other with the input signal of cable TV signal, and its I/O end IO is connected with user terminal by cable tv coax.
3, the Ethernet transmitting device based on cable tv coax as claimed in claim 1, it is characterized in that: user terminal is made of balance/nonbalance converter and duplexer filter, wherein an end of balance/nonbalance converter links to each other with the computer of user side by the RJ45 mouth, its other end is connected with the low frequency end LP of duplexer filter, said duplexer filter is a high-pass and low-pass filter, its front end HP links to each other with the television set of user side, and its I/O end IO is connected with hub by cable tv coax.
4, as claim 2 or 3 described Ethernet transmitting devices based on cable tv coax, it is characterized in that: balance/nonbalance converter is by two transformer apparatus T1, T2, resistor R, two magnetic core coil B1, B2 constitutes, wherein the end of the RX+ in the RJ45 mouth links to each other with the end of magnetic core coil B2 by the primary coil of transformer apparatus T1, TX+ end in the RJ45 mouth joins by the primary coil of transformer apparatus T2 and the other end of magnetic core coil B2, RX-end in the RJ45 mouth and TX-end are respectively by transformer apparatus T1, the secondary coil of T2 is connected with earth terminal GND, resistor R is connected in parallel on the two ends of magnetic core coil B2, is connected with earth terminal GND with the low frequency end LP of duplexer filter respectively at the two ends of the magnetic core coil B1 of totally one magnetic core with magnetic core coil B2.
5, as claim 2 or 3 described Ethernet transmitting devices based on cable tv coax, it is characterized in that: duplexer filter is made of inductor L, L1, L2, L8, capacitor C, Cw, C1, C2, C12-C14, wherein the end of inductor L1 links to each other with the low frequency end LP of filter, the other end of inductor L1 joins by capacitor C1 and earth terminal, the other end of inductor L1 also is connected with the end of inductor L with capacitor C2 by the inductor L2 of parallel connection, and the other end of inductor L is connected with the I/O end IO of filter by capacitor C; The front end HP of filter links to each other with earth terminal by capacitor Cw, the front end HP of filter also joins by the end of capacitor C14 and capacitor C12, capacitor C14 is connected with earth terminal with capacitor C13 by scurrying connection inductor L8 with the tie point of capacitor C12, and the other end of C12 is connected with the I/O end IO of filter by capacitor C.
6, the Ethernet transmitting device based on cable tv coax as claimed in claim 1, it is characterized in that: also be provided with distributor and switch in the hub, the input of distributor links to each other with the input signal of cable TV signal, every road output of distributor respectively with a plurality of duplexer filters in the front end HP of a corresponding duplexer filter join; The input of switch links to each other with the Ethernet data signal, every road output of switch respectively with a plurality of balance/nonbalance converters in the RJ45 mouth of a corresponding balance/nonbalance converter join, the LP end of each balance/nonbalance converter is connected with the low frequency end LP of a corresponding duplexer filter respectively; The I/O end IO of each duplexer filter is connected with a user terminal in a plurality of user terminals by one in the many cable tv coaxs respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098189 CN200941620Y (en) | 2006-07-31 | 2006-07-31 | Ethernet transmitter based on wired TV coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098189 CN200941620Y (en) | 2006-07-31 | 2006-07-31 | Ethernet transmitter based on wired TV coaxial cable |
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| Publication Number | Publication Date |
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| CN200941620Y true CN200941620Y (en) | 2007-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620098189 Expired - Fee Related CN200941620Y (en) | 2006-07-31 | 2006-07-31 | Ethernet transmitter based on wired TV coaxial cable |
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| CN (1) | CN200941620Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457785A (en) * | 2010-10-27 | 2012-05-16 | 上海澳润信息科技有限公司 | Co-cable multiplexed switching device for Ethernet television |
| 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 |
| CN102598552A (en) * | 2009-09-21 | 2012-07-18 | 约翰·梅扎林瓜联合有限公司 | Passive multi-port entry adapter and method for preserving downstream catv signal strength within in-home network |
| US9351051B2 (en) | 2008-10-13 | 2016-05-24 | Ppc Broadband, Inc. | CATV entry adapter and method for distributing CATV and in-home entertainment signals |
| CN105847732A (en) * | 2016-05-06 | 2016-08-10 | 苏州市职业大学 | Separating and synthesizing device for CATV RF signal and ethernet data signal |
| US10142677B2 (en) | 2008-10-21 | 2018-11-27 | Ppc Broadband, Inc. | Entry device for a CATV network |
| US10212392B2 (en) | 2016-06-30 | 2019-02-19 | Ppc Broadband, Inc. | Passive enhanced MoCA entry device |
| CN111147095A (en) * | 2019-12-19 | 2020-05-12 | 西安云维智联科技有限公司 | Method, circuit and device for separating radio frequency signal and digital square wave signal |
| US11076191B2 (en) | 2018-01-19 | 2021-07-27 | Ppc Broadband, Inc. | Systems and methods for extending an in-home splitter network |
| US11910052B2 (en) | 2008-10-21 | 2024-02-20 | Ppc Broadband, Inc. | Entry device for communicating external network signals and in-home network signals |
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2006
- 2006-07-31 CN CN 200620098189 patent/CN200941620Y/en not_active Expired - Fee Related
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| US9351051B2 (en) | 2008-10-13 | 2016-05-24 | Ppc Broadband, Inc. | CATV entry adapter and method for distributing CATV and in-home entertainment signals |
| US10154302B2 (en) | 2008-10-13 | 2018-12-11 | Ppc Broadband, Inc. | CATV entry adapter and method for distributing CATV and in-home entertainment signals |
| US9781472B2 (en) | 2008-10-13 | 2017-10-03 | Ppc Broadband, Inc. | CATV entry adapter and method for distributing CATV and in-home entertainment signals |
| US10341718B2 (en) | 2008-10-21 | 2019-07-02 | Ppc Broadband, Inc. | Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network |
| US10419813B2 (en) | 2008-10-21 | 2019-09-17 | Ppc Broadband, Inc. | Passive multi-port entry adapter for preserving downstream CATV signal strength |
| US10917685B2 (en) | 2008-10-21 | 2021-02-09 | Ppc Broadband, Inc. | Entry device for communicating signals between an external network and an in-home network |
| US10284903B2 (en) | 2008-10-21 | 2019-05-07 | Ppc Broadband, Inc. | Entry adapters for frequency band blocking internal network signals |
| US10341719B2 (en) | 2008-10-21 | 2019-07-02 | Ppc Broadband, Inc. | Entry adapter for communicating external signals to an internal network and communicating client signals in the client network |
| US11528526B2 (en) | 2008-10-21 | 2022-12-13 | Ppc Broadband, Inc. | Entry device for communicating external network signals and in-home network signals |
| US10284904B2 (en) | 2008-10-21 | 2019-05-07 | Ppc Broadband, Inc. | Entry adapters for conducting can signals and in-home network signals |
| US10142677B2 (en) | 2008-10-21 | 2018-11-27 | Ppc Broadband, Inc. | Entry device for a CATV network |
| US10149004B2 (en) | 2008-10-21 | 2018-12-04 | Ppc Broadband, Inc. | Entry device and method for communicating CATV signals and MoCA in-home network signals in an entry device |
| US11910052B2 (en) | 2008-10-21 | 2024-02-20 | Ppc Broadband, Inc. | Entry device for communicating external network signals and in-home network signals |
| US10154304B2 (en) | 2008-10-21 | 2018-12-11 | Ppc Broadband, Inc. | Methods for controlling CATV signal communication between a CATV network and an in-home network, and preserving downstream CATV signal strength within the in-home network |
| US10154303B2 (en) | 2008-10-21 | 2018-12-11 | Ppc Broadband, Inc. | Entry adapter that blocks different frequency bands and preserves downstream signal strength |
| US9516376B2 (en) | 2009-09-21 | 2016-12-06 | Ppc Broadband, Inc. | Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network |
| CN102598552B (en) * | 2009-09-21 | 2015-04-01 | Ppc宽带公司 | Passive multi-port entry adapter and method for preserving downstream catv signal strength within in-home network |
| US9860591B2 (en) | 2009-09-21 | 2018-01-02 | Ppc Broadband, Inc. | Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network |
| US9167286B2 (en) | 2009-09-21 | 2015-10-20 | Ppc Broadband, Inc. | Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network |
| CN102598552A (en) * | 2009-09-21 | 2012-07-18 | 约翰·梅扎林瓜联合有限公司 | Passive multi-port entry adapter and method for preserving downstream catv signal strength within in-home network |
| CN102457785A (en) * | 2010-10-27 | 2012-05-16 | 上海澳润信息科技有限公司 | Co-cable multiplexed switching device for Ethernet television |
| 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 |
| CN105847732A (en) * | 2016-05-06 | 2016-08-10 | 苏州市职业大学 | Separating and synthesizing device for CATV RF signal and ethernet data signal |
| US11076129B2 (en) | 2016-06-30 | 2021-07-27 | Ppc Broadband, Inc. | MoCA entry device |
| US10212392B2 (en) | 2016-06-30 | 2019-02-19 | Ppc Broadband, Inc. | Passive enhanced MoCA entry device |
| US11647162B2 (en) | 2016-06-30 | 2023-05-09 | Ppc Broadband, Inc. | MoCA entry device |
| US10582160B2 (en) | 2016-06-30 | 2020-03-03 | Ppc Broadband, Inc. | MoCA entry device |
| US11076191B2 (en) | 2018-01-19 | 2021-07-27 | Ppc Broadband, Inc. | Systems and methods for extending an in-home splitter network |
| CN111147095B (en) * | 2019-12-19 | 2021-10-15 | 西安云维智联科技有限公司 | Method, circuit and device for separating radio frequency signal and digital square wave signal |
| CN111147095A (en) * | 2019-12-19 | 2020-05-12 | 西安云维智联科技有限公司 | Method, circuit and device for separating radio frequency signal and digital square wave signal |
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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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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: 430074 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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