CN202841391U - Signal-transmission and distribution multiplexer - Google Patents
Signal-transmission and distribution multiplexer Download PDFInfo
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- CN202841391U CN202841391U CN 201220403500 CN201220403500U CN202841391U CN 202841391 U CN202841391 U CN 202841391U CN 201220403500 CN201220403500 CN 201220403500 CN 201220403500 U CN201220403500 U CN 201220403500U CN 202841391 U CN202841391 U CN 202841391U
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- signal
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- multiplexer
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Abstract
The utility model is applied to the satellite broadcasting field and provides a signal-transmission and distribution multiplexer, comprising a plurality of transmission lines for transmitting a power supply and signals. Every transmission line is provided with a switch diode for controlling the transmission line to conduct and a control circuit for controlling the switch diode to conduct. The signal-transmission and distribution multiplexer provided by the embodiment of the invention can realize switching of the power supply and the transmission signals and realize power supply transmission, and can be used for receiving TV satellite signals of a plurality of receivers and satellites.
Description
Technical field
The utility model belongs to the satellite broadcasting field, relates in particular to a kind of signal transmission and distributes multiplexer.
Background technology
The telstar signal is television receiver via satellite, receives such as set-top box, and needs in the actual mechanical process a plurality of telstar signals are sent on a plurality of set-top box, and this just needs to realize that a plurality of satellites are simultaneously to a plurality of set-top box transmission signals.
Traditional circuit switching switch as shown in Figure 1, with 7812 voltage stabilizing triodes as the control of voltage 13V or 18V switched voltage, if 18V is then via the output of 7812 voltage stabilizing triode voltage 18V end, if 3V is then 7812 through the output of the 13V of voltage stabilizing triode end.Transmission line then adopts the switch diode to control the Push And Release of transmission line, and the voltage of control diode is controlled transmission line conducting when the diode conducting, otherwise then not conducting of transmission line when not conducting of diode by control circuit.
Traditional circuit switching can only realize voltage control and can not realize the switching of transmission signal, and power supply can not transmit, and at this moment, the low required voltage of noise amplifying frequency demultiplier of satellite need to be realized by additional power source.
The utility model content
The utility model embodiment provides a kind of signal transmission to distribute multiplexer, is intended to solve the traditional circuit switching and can not realizes that transmission signal switches, and can not transmit the problem of power supply.
The utility model embodiment is achieved in that a kind of signal transmission distributes multiplexer, comprising:
Many the transmission lines that transmit power supply and signal all have a switch diode of controlling this transmission line conducting on every transmission lines; And
Control the control circuit of described switch diode conducting.
The signal transmission that the utility model embodiment provides distributes multiplexer can realize switching and the transmission power supply of power supply and transmission signal, can be used for the reception of the telstar signal of many receivers, a plurality of satellites.
Description of drawings
Fig. 1 is the realization schematic diagram that traditional circuit is switched in the prior art;
Fig. 2 is the structure chart that the signal transmission that provides of the utility model embodiment distributes multiplexer;
Fig. 3 is the structural representation during signal transmission between a plurality of satellites of providing of the utility model embodiment and a plurality of receiver;
Fig. 4 is the structure chart of the control circuit that provides of the utility model embodiment;
Fig. 5 is the structure chart of the integrated circuit that provides of the utility model embodiment;
Fig. 6 is that the signal transmission that the utility model embodiment provides distributes multiplexer use scenes schematic diagram.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In the utility model with the control integration circuit as control switching circuit, realize the control to power supply and transmission signal, can select different signal transmission lines according to difference output demand, transmit simultaneously power supply.
As shown in Figure 2, the signal transmission that the utility model embodiment provides distributes the structure of multiplexer, for convenience of description, only shows the part relevant with the utility model embodiment.
Signal transmission distributes multiplexer to comprise plurality of transmission lines 11, all has the switch diode 12 of this transmission line conducting of control on every transmission lines, and the control circuit 14 of control switch diode 12 conductings.
As an embodiment of the present utility model, transmission line 11 can be 0KHz/13V, 22KHz/13V, 0KHz/18V, and four of 22KHz/18V, can control simultaneously 13V or 18V electrical source exchange, and the transmission signal of 0KHz, 22KHz switches.
In the utility model embodiment, transmission line 11 can be according to different power supply or the different quantity of signal output demand configuration, such as can being 4,8,16 etc.
Each switch diode is free-standing voltage, and each transmission lines is separate, the bad circuit working that can not have influence on other channel of uniline assembly.
The conducting state of switch diode 12 provides control voltage to control by control circuit 14, controls the conducting of transmission line 11 by the conducting of switch diode 12, when 12 conducting of switch diode, and the transmission line conducting that is attached thereto.
The signal that control circuit 14 receives from receiver, according to the signal output that receives and 13V/0KHz, 13V/22KHz, 18V/0KHz, the control voltage that perhaps 18V/22KHz is corresponding, control conducting voltage as switch diode 12, and then select corresponding transmission line, and with power delivery to far-end, for the low noise amplifying frequency demultiplier of satellite provides voltage.
As a preferred embodiment of the present utility model, distribute increase signal amplifier 13 in the multiplexer at signal transmission, signal amplifier 13 is connected between satellite receiver and the transmission line, distribute the signal of multiplexer output to amplify to signal transmission, make signal transmission distribute the signal strength of multiplexer output to equate with the signal strength of input, the loss of compensating signature in transmission is down to the signal loss minimum.
During work, given power supply and the signal of required 13V/0KHz, 13V/22KHz, 18V/0KHz or 18V/22KHz by receiver, control circuit 14 is according to required power supply and signal output control voltage, the transmission route of corresponding power supply and signal is selected in the transmission line 11 in the conducting of control switch diode 12 then.Wherein, output after transmission signal amplifies through signal amplifier 13.
When realizing the signal transmission between a plurality of satellites and a plurality of receiver, can adopt a plurality of signal transmissions to distribute multiplexer, Fig. 3 can realize the multiple switching of power supply and the transmission signal of a plurality of inputs, a plurality of outputs take six receivers of REC1 ~ REC6 as example.
As shown in Figure 4, control circuit 14 comprises integrated circuit 21, and with the many groups switch control unit 21 that is connected with integrated circuit 21, each control unit comprises a diode and an electric crystal.
Wherein, the base stage of electric crystal is connected with control circuit 14, and emitter connects input, and diode is connected between the collector electrode and output of electric crystal.
The conducting of diode control transmission line, line conduction under the effective voltage state, otherwise not conducting.Electric crystal is used for amplification, switch, voltage stabilizing function as a kind of variable power switch.
Integrated circuit 21 and electric crystal are exported 13V, 18V voltage simultaneously jointly as the selector switch of 13V/0KHz, 13V/22KHz, 18V/0KHz 18V/22KHz transmission line, offer the low noise amplifying frequency demultiplier voltage of satellite.
Integrated circuit 21 and electric crystal are as voltage switch in the control circuit 14, control 13V or 18V voltage switch, the switching of diode control transmission signal, signal transmission line is synchronoused working with voltage control circuit, can realize the multiple switching of the outputs such as 13V/0KHz, 13V/22KHz, 18V/0KHz, 18V/22KHz.
Fig. 5 for convenience of explanation, only shows the part relevant with the utility model embodiment for the structure of the integrated circuit that shows the utility model embodiment and provide.
Amplifying circuit 211 amplifies the satellite-signal of 22KHZ.
Port LBN1, LBN2, LBN3 and the LBN4 of integrated circuit 21 links to each other with the low noise amplifying frequency demultiplier of satellite, will transfer to receiver through amplification, frequency reducing as satellite-signal through the signal that integrated circuit 21 is processed.
Hypothesis needs to select the 22KHz/13V circuit during work, and voltage comparator circuit 216 is through alternative 13V voltage circuit, the not conducting of 18V voltage circuit.Oscillator circuit 215 produces the 22KHZ source signal, through making it to drive the low noise amplifying frequency demultiplier of satellite after amplifying circuit 211, the shaping circuit 212 amplification shapings, is driven with drive circuit 214 by logical circuit 213 and selects the 22KHz/13V circuit.
In the utility model embodiment, integrated circuit 21 adopts microwave signals to separate transmission with power supply, terminal again the mode of combination with power delivery to far-end, for the low noise amplifying frequency demultiplier of satellite provides voltage, do not need additional power source.
Among the utility model embodiment, distribute the input of multiplexer that microwave signal is just separated with power signal at signal transmission, give again combination at output after the control of process 0KHz/13V, 22KHz/13V, 0KHz/18V, 22KHz/18V power supply and transmission signal and the switching, transmit simultaneously microwave signal and power supply.
As shown in Figure 6, distribute multiplexer 31 that the television signal of satellite 32 is transferred to satellite receiver 33 through signal transmission, satellite receiver 33 gives 13V/0KHz, 13V/22KHz, 18V/0KHz, the perhaps voltage of 18V/22KHz and signal, signal transmission distributes multiplexer 31 to select needed voltage control circuit and signal transmission circuit according to this voltage and signal, and then voltage reached low-noise amplifier, and with signal transmission to satellite receiver 33, signal loss is down to minimum, can in the situation of many receivers, a plurality of satellites, uses.
The signal transmission that the utility model embodiment provides distributes multiplexer can realize switching and the transmission power supply of power supply and transmission signal, can be used for the reception of the telstar signal of many receivers, a plurality of satellites.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
1. a signal transmission distributes multiplexer, it is characterized in that, described signal transmission distributes multiplexer to comprise:
Many the transmission lines that transmit power supply and signal all have a switch diode of controlling this transmission line conducting on every transmission lines; And
Control the control circuit of described switch diode conducting.
2. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that, described signal transmission distributes multiplexer also to comprise:
Be connected between satellite receiver and the described transmission line signal amplifier that the signal that distributes multiplexer to export to signal transmission amplifies.
3. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that each switch diode is free-standing voltage.
4. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that, described signal transmission distributes multiplexer to comprise 13V/0KHz, 13V/22KHz, 18V/0KHz 18V/22KHz four transmission lines.
5. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that described control circuit comprises:
Integrated circuit; And
The many groups switch control unit that is connected with described integrated circuit.
6. signal transmission as claimed in claim 5 distributes multiplexer, it is characterized in that described switch control unit comprises:
Base stage is connected with described integrated circuit, and emitter connects the polycrystal of voltage input end; And
Be connected to the diode between described multicrystal collector electrode and the output.
7. signal transmission as claimed in claim 5 distributes multiplexer, it is characterized in that described control circuit comprises:
Amplify the amplifying circuit of satellite-signal;
Be connected with described amplifying circuit, to the shaping circuit from the signal shaping of amplifying circuit;
The logical circuit that is connected with described shaping circuit;
The drive circuit that is connected with described logical circuit;
Produce the oscillator circuit of source signal;
Output is as the voltage comparator circuit of 13V and 18V comparison reference voltage; And
The port that links to each other with the low noise amplifying frequency demultiplier of satellite.
8. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that, described integrated circuit adopts microwave signal to separate transmission with power supply, terminal again the mode of combination with power delivery to far-end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403500 CN202841391U (en) | 2012-08-15 | 2012-08-15 | Signal-transmission and distribution multiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403500 CN202841391U (en) | 2012-08-15 | 2012-08-15 | Signal-transmission and distribution multiplexer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841391U true CN202841391U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220403500 Expired - Lifetime CN202841391U (en) | 2012-08-15 | 2012-08-15 | Signal-transmission and distribution multiplexer |
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| CN (1) | CN202841391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595975A (en) * | 2012-08-15 | 2014-02-19 | 珠海市百音电子科技有限公司 | Signal transmission and distribution multiplexer |
-
2012
- 2012-08-15 CN CN 201220403500 patent/CN202841391U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595975A (en) * | 2012-08-15 | 2014-02-19 | 珠海市百音电子科技有限公司 | Signal transmission and distribution multiplexer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160203 Address after: Nanping Town Xiangzhou District Guangdong city Zhuhai province 519000 Guang Sheng Industrial Zone No. 39 two floor East Road Guangzhou Patentee after: ZHUHAI PUSISAITE TECHNOLOGY CO.,LTD. Address before: Pingtung 519000 Guangdong Province, Zhuhai city Xiangzhou District Nanping Technology Industrial Park Road No. 5 building two floor five Patentee before: Zhuhai Baiyin Electronic Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |