CN102685399B - Multichannel signal distribution circuit and multichannel signal distributor - Google Patents
Multichannel signal distribution circuit and multichannel signal distributor Download PDFInfo
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- CN102685399B CN102685399B CN201210133642.XA CN201210133642A CN102685399B CN 102685399 B CN102685399 B CN 102685399B CN 201210133642 A CN201210133642 A CN 201210133642A CN 102685399 B CN102685399 B CN 102685399B
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Abstract
The invention discloses a multichannel signal distribution circuit and a multichannel signal distributor, and belongs to the technical field of LED display. The multichannel signal distribution circuit comprises a bus interface unit, a first voltage conversion unit and a branching interface unit, wherein the bus interface unit is used for receiving input of external signals and power voltage, the first voltage conversion unit is connected with an output end of the bus interface unit and used for receiving the power voltage and converting the power voltage into first target voltage, and the branching interface unit is connected with an output end of the first voltage conversion unit and an output end of the bus interface unit and used for dividing the signals and the first target voltage into a plurality of channels and outputting the signals and the first target voltage. The multichannel signal distributor simultaneously has a signal distribution function and a power distribution function, and is simple in structure and easy to implement.
Description
Technical field
The present invention relates to signal distribution circuit and signal distributor, belong to technical field of LED display, particularly relate to a kind of signal distribution circuit and signal distributor of multichannel.
Background technology
Along with socioeconomic development and various household electrical appliance, the development of carry-on audio-visual equipment technology, home theater, walkman, MP3, the audio-video signal of the audio-visual equipment such as MP4 is all generally transmitted by special purpose interface, when connecting multiple devices by same signal source, just need to use multiplex signal distributor, existing signal distributor does not have power distribution function, and power line and holding wire are all stand-alone interfaces, independent cabling, various and the existing divider signal line that connects up is multiply netting twine, segment signal line wherein is only used during actual signal transmission, other several strands are in order to backup, therefore utilization of resources rate is low.
Summary of the invention
Based on the problems referred to above, the object of this invention is to provide a kind of multichannel signal distribution circuit, in order to realize simultaneous transmission of signals and power supply, power supply and signaling interface close two uniquely, and distribution function is integrated, and structure is simple, and improves the utilance of resource.
For solving the problem, the invention provides a kind of multichannel signal distribution circuit, it is characterized in that, comprising:
Bus Interface Unit, in order to receive the input of external signal and supply voltage;
First voltage conversion unit, connects the output of above-mentioned Bus Interface Unit, in order to receive above-mentioned supply voltage and to convert above-mentioned supply voltage to first object voltage;
Second voltage conversion unit, connects the output of described first voltage conversion unit, in order to above-mentioned first object voltage transitions is become the second target voltage and exports;
Signal TU Trunk Unit, connect the output of above-mentioned second voltage conversion unit, and connect the output of above-mentioned Bus Interface Unit, in order to receive the input of above-mentioned second target voltage, carry out enhancing to described signal to amplify, and export the signal after amplification the input of above-mentioned separated time interface unit to;
Separated time interface unit, connects the output of above-mentioned first voltage conversion unit and the output of above-mentioned signal TU Trunk Unit, in order to above-mentioned signal and first object voltage are divided into multichannel and export.
Wherein, the outer power voltage of described input is 220V, and first object voltage is 36V, and the second target voltage is 5V.
Wherein, described Bus Interface Unit comprises two signaling interfaces and a power interface, and described separated time interface unit comprises eight signals, the multiplexing output interface of power supply.
For solving the problem, the present invention discloses a kind of multiplex signal distributor simultaneously, it is characterized in that, comprise the multichannel signal distribution circuit according to any one of casing and the claims, described Bus Interface Unit and separated time interface unit are separately positioned on cabinet sides, and described cabinet sides is also provided with multiple louvre.
Beneficial effect of the present invention:
Relative to existing signal distributor structure, the Bus Interface Unit of multiplex signal distributor of the present invention can receive outside signal simultaneously and power supply inputs, and can output signal and power supply at separated time interface unit simultaneously; At aspect of performance, this multiplex signal distributor possesses signal distribution function and power distribution function simultaneously,
Structure is simple, is easy to realize.
Accompanying drawing explanation
Fig. 1 is the multichannel signal distribution circuit principle knot block diagram of the embodiment of the present invention;
Fig. 2 is the multichannel signal distribution circuit theory structure block diagram of another embodiment of the present invention;
Fig. 3 is the multichannel signal distribution circuit schematic diagram of the embodiment of the present invention;
Fig. 4 is the multiplex signal distributor schematic diagram of the embodiment of the present invention;
Fig. 5 is the multiplex signal distributor schematic diagram of the embodiment of the present invention.
Reference numeral:
1 multichannel signal distribution circuit 2 distributor 10 Bus Interface Unit 11 first voltage conversion unit 12 separated time interface unit 101 signal input 102 power inlet 10 Bus Interface Unit 13 second voltage conversion unit 14 signal TU Trunk Unit 21 casing 121 delivery outlet.
Embodiment
By describing technology contents of the present invention, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
Signal distributor refers to a road signal is distributed into the identical signal of multichannel when no signal is lost, and exports to multiple display device.Principle utilizes high frequency transformer to carry out impedance matching to signal, makes the signal level distributed uniform of the minimum output of the impact of load on input.
Refer to Fig. 1 and Fig. 4, a kind of multichannel signal distribution circuit 1, comprising: Bus Interface Unit 10, first voltage conversion unit 11 and separated time interface unit 12.Bus Interface Unit 10 comprises signal input 101 and power inlet 102, respectively in order to receive the input of external signal and supply voltage, and the supply voltage of reception is transferred to the first voltage conversion unit 11; First voltage conversion unit 11 connects the output of above-mentioned Bus Interface Unit 10, receive above-mentioned supply voltage and convert above-mentioned supply voltage to first object voltage, in the present invention, outer power voltage is generally 220V normal voltage, first object voltage is the voltage suitable with outside audio & video equipment, in the present embodiment, outside is display device, and first object voltage is 36V; Separated time interface unit 12 connects the above-mentioned output of the first voltage conversion unit 11 and the output of above-mentioned Bus Interface Unit 10, from Bus Interface Unit Received signal strength, receive first object voltage from the first voltage conversion unit 11, and above-mentioned signal and first object voltage are divided into multichannel and export.
Consulting Fig. 2 and Fig. 3, is the another kind of multichannel signal distribution circuit that the embodiment of the present invention provides.This circuit also comprises the second voltage conversion unit 13 and signal TU Trunk Unit 14, and this second voltage conversion unit 13 connects the output of described first voltage conversion unit 11, and above-mentioned first object voltage transitions is become the second target voltage and exports; This signal TU Trunk Unit 14 connects the output of above-mentioned second voltage conversion unit 13, and connect the output of above-mentioned Bus Interface Unit 10, receive the input of above-mentioned second target voltage, and utilize this second target voltage to carry out enhancing amplification to the external signal received, thus increase the distance of Signal transmissions.In the present embodiment, the second target voltage is in order to power to signal TU Trunk Unit, and the signal of signal TU Trunk Unit 14 to input has relaying booster action, then the strengthened signal of amplification is exported to the input of above-mentioned separated time interface unit 12.In the present embodiment, the second target voltage 5V is the voltage adapting to signal TU Trunk Unit 14.
As a preferred embodiment, above-mentioned separated time interface unit 12 also comprises multiple indicator light (scheming not shown), the corresponding indicator light of each delivery outlet 121 of separated time interface unit 12, thus intuitively can understand the operating state of each delivery outlet 121.
In the above-described embodiments, described Bus Interface Unit 10 comprises two signal inputs 101 and a power inlet 102, described separated time interface unit 12 comprises eight signals and power output 121, but is not limited thereto, and a point line interface 12 also can arrange more delivery outlet 121.
Consulting Fig. 4 and Fig. 5, is the schematic diagram of the multiplex signal distributor of the embodiment of the present invention.This multiplex signal distributor 2 can be conventional HDMI distributor, comprise casing 21 and built-in multichannel signal distribution circuit, wherein the Bus Interface Unit 10 of multichannel signal distribution circuit and separated time interface unit 12 are separately positioned on the exterior lateral sides of casing 21, the operation principle of multichannel signal distribution circuit describes above, no longer repeats at this.Bus Interface Unit 10 receives outside supply voltage and signal, is divided into the identical signal of multichannel, exports through separated time interface unit 12 after multichannel signal distribution circuit 1.When needs connect multiple stage outside audio & video equipment, only need a multiplex signal distributor 2 to realize, save space, very convenient use.
In the present embodiment, the delivery outlet 121 of separated time interface unit 12 also can arrange multiple, can connect more equipment like this, do not need multiple stage distributor in different fields of employment.
As a preferred embodiment, this multiplex signal distributor 2 side is also provided with multiple louvre (not shown), can dispel the heat effectively to distributor 2 like this.Casing 21 is provided with through hole, and the indicator light of above-mentioned multichannel signal distribution circuit 1 appears from through hole, and user can observe the operating state of separated time interface unit 12 from outside by this through hole.
Relative to existing signal distributor structure, the Bus Interface Unit of multiplex signal distributor 2 of the present invention can receive outside signal simultaneously and power supply inputs, and can output signal and power supply at separated time interface unit simultaneously; At aspect of performance, this multiplex signal distributor possesses signal distribution function and power distribution function simultaneously, and structure is simple, is easy to realize; And owing to adding signal TU Trunk Unit 14, the relaying having possessed signal adds powerful, effectively reduce the decay of netting twine Signal transmissions, signal transmission distance is effectively improved.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a multichannel signal distribution circuit, is characterized in that, comprising:
Bus Interface Unit, in order to receive the input of external signal and supply voltage;
First voltage conversion unit, connects the output of above-mentioned Bus Interface Unit, in order to receive above-mentioned supply voltage and to convert above-mentioned supply voltage to first object voltage;
Second voltage conversion unit, connects the output of described first voltage conversion unit, in order to above-mentioned first object voltage transitions is become the second target voltage and exports;
Signal TU Trunk Unit, connects the output of above-mentioned second voltage conversion unit, and connects the output of above-mentioned Bus Interface Unit, in order to receive the input of above-mentioned second target voltage, carry out enhancing to described signal to amplify, and export the signal after amplification the input of above-mentioned separated time interface unit to
Separated time interface unit, connects the output of above-mentioned first voltage conversion unit and the output of above-mentioned signal TU Trunk Unit, in order to above-mentioned signal and first object voltage are divided into multichannel and export.
2. multichannel signal distribution circuit according to claim 1, is characterized in that, the outer power voltage of described input is 220V, and first object voltage is 36V, and the second target voltage is 5V.
3. multichannel signal distribution circuit according to claim 1, is characterized in that, described Bus Interface Unit comprises two signaling interfaces and a power interface, and described separated time interface unit comprises eight signals and power output interface.
4. multichannel signal distribution circuit according to claim 1, is characterized in that, described separated time interface unit also comprises indicator light, in order to indicate the operating state of separated time interface unit.
5. a multiplex signal distributor, is characterized in that, comprises casing and the claims 1
~multichannel signal distribution circuit according to any one of 4, described Bus Interface Unit and separated time interface unit are separately positioned on cabinet sides, and described cabinet sides is also provided with multiple louvre.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210133642.XA CN102685399B (en) | 2012-04-28 | 2012-04-28 | Multichannel signal distribution circuit and multichannel signal distributor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210133642.XA CN102685399B (en) | 2012-04-28 | 2012-04-28 | Multichannel signal distribution circuit and multichannel signal distributor |
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| CN102685399A CN102685399A (en) | 2012-09-19 |
| CN102685399B true CN102685399B (en) | 2015-01-28 |
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| CN103986520A (en) * | 2014-06-16 | 2014-08-13 | 山东维京信息科技有限公司 | Multifunctional photoelectric collector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10210407A (en) * | 1997-01-21 | 1998-08-07 | Afuekuto:Kk | Image information generating device |
| CN2333131Y (en) * | 1998-03-14 | 1999-08-11 | 四川长虹电子集团公司 | Audio and video distribution amplifier |
| CN2494550Y (en) * | 2001-08-10 | 2002-06-05 | 联想(北京)有限公司 | Signal power-line and special socket for LCD |
| CN201057388Y (en) * | 2007-05-24 | 2008-05-07 | 广州硅芯电子科技有限公司 | Linear LED screen |
| CN201608791U (en) * | 2010-01-15 | 2010-10-13 | 深圳市东景盛电子技术有限公司 | Multiplex signal distributor |
| CN102332246A (en) * | 2011-09-28 | 2012-01-25 | 常州工学院 | Video graphics array (VGA) multi-channel distribution circuit and working method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4821824B2 (en) * | 2008-09-19 | 2011-11-24 | ソニー株式会社 | Image display device, connector display method, transmission line state detection device, transmission line state detection method, and semiconductor integrated circuit |
-
2012
- 2012-04-28 CN CN201210133642.XA patent/CN102685399B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10210407A (en) * | 1997-01-21 | 1998-08-07 | Afuekuto:Kk | Image information generating device |
| CN2333131Y (en) * | 1998-03-14 | 1999-08-11 | 四川长虹电子集团公司 | Audio and video distribution amplifier |
| CN2494550Y (en) * | 2001-08-10 | 2002-06-05 | 联想(北京)有限公司 | Signal power-line and special socket for LCD |
| CN201057388Y (en) * | 2007-05-24 | 2008-05-07 | 广州硅芯电子科技有限公司 | Linear LED screen |
| CN201608791U (en) * | 2010-01-15 | 2010-10-13 | 深圳市东景盛电子技术有限公司 | Multiplex signal distributor |
| CN102332246A (en) * | 2011-09-28 | 2012-01-25 | 常州工学院 | Video graphics array (VGA) multi-channel distribution circuit and working method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 多路信号分配器的研制;郝宁生;《实验室研究与探索》;20030228;第22卷(第1期);第111-112页 * |
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Address after: Room 306, Building A, No. 89 West Third Ring North Road, Haidian District, Beijing, 100000 Patentee after: Leyard (Beijing) Performing Arts Culture Co.,Ltd. Address before: Room 306, Building A, No. 89 West Third Ring North Road, Haidian District, Beijing, 100000 Patentee before: BEIJING GLUX TECHNOLOGY CO.,LTD. Address after: Room 306, Building A, No. 89 West Third Ring North Road, Haidian District, Beijing, 100000 Patentee after: BEIJING GLUX TECHNOLOGY CO.,LTD. Address before: Room 306, Building A, No. 89 West Third Ring North Road, Haidian District, Beijing, 100000 Patentee before: BEIJING GLUX CREATIVE TECHNOLOGY Co.,Ltd. |