CN202931492U - Signal modulation apparatus for modulating 3D signal to power supply terminal - Google Patents
Signal modulation apparatus for modulating 3D signal to power supply terminal Download PDFInfo
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- CN202931492U CN202931492U CN 201220585499 CN201220585499U CN202931492U CN 202931492 U CN202931492 U CN 202931492U CN 201220585499 CN201220585499 CN 201220585499 CN 201220585499 U CN201220585499 U CN 201220585499U CN 202931492 U CN202931492 U CN 202931492U
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- 230000005669 field effect Effects 0.000 claims description 24
- 239000011324 bead Substances 0.000 claims description 13
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Abstract
The utility model discloses a signal modulation apparatus for modulating a 3D signal to a power supply terminal, comprising a signal input module, a selection module and a switch module. The input terminal of the selection module is connected with the control terminal of a main chip; the output terminal of the selection module is connected with the first terminal of the switch module and the output terminal of the signal input module; the input terminal of the signal input module is connected with a 3D signal terminal; the second terminal of the switch module is connected with a feeder terminal, the output terminal of the signal input module and the first terminal of the switch module; and the third terminal of the switch module is connected with the power supply terminal. According to the signal modulation apparatus for modulating a 3D signal to a power supply terminal, according to the voltage signal output by the selection module and the voltage signal output by the signal input module, the voltage of the feeder terminal is output to the power supply terminal of a USB interface, or a 3D synchronization signal is output to the power supply terminal of the USB interface, which is determined by the switch module, the communication between the 3D synchronization signal and Dongle is achieved, and the unstable signal synchronization is prevented.
Description
Technical field
The utility model relates to signal modulation technique, and is particularly a kind of for the 3D signal being modulated to the modulating apparatus of power end.
Background technology
At present in the 3D technical field of television sets, main flow a kind of 3D technology---shutter (shutter glass) technology realizes that the imaging effect of 3D is: switch fast by the left and right sides glasses, the side image that presents in turn the television image left and right, when presenting a side image, the glasses of opposite side cut out, and make signal can't enter eyes.The 3D technology can adopt infrared, RF(Radio Frequency, radio frequency), three kinds of modes of bluetooth realize the transmission of signal.
The intelligent remote controller of existing television set adopts bluetooth or RF transmitted signal, and it comprises two parts---remote controller and Dongle(RF receiver) and, remote controller and Dongle adopt the radio communication agreement to communicate; Dongle is connected with television set by the USB interface, and both communicate by usb protocol.USB interface adopts the USB2.0 interface usually, and it comprises the wiring pin of power line VCC, power ground GND and two data wire D+, D-.if adopting RF or bluetooth approach between 3D glasses and television set communicates by letter, need to increase in addition Dongle, this Dongle with the intelligent remote controller that has existed repeats, cause the wasting of resources, and two Dongle also deposit the design difficulty that can increase control structure, therefore can consider that 3D glasses and television set share a Dongle, send the 3D synchronizing signal to Dongle by usb signal, just can reach communicating by letter between 3D glasses and television set, but because the time-delay of usb signal is unfixing, when watching the 3D film source by said method, can there be the synchronous unsettled problem of signal.
In view of this, the utility model provides a kind of for the 3D signal being modulated to the modulating apparatus of power end.
The utility model content
In view of above-mentioned the deficiencies in the prior art part, it is a kind of for the 3D signal being modulated to the modulating apparatus of power end that the purpose of this utility model is to provide, make 3D glasses and television set share a Dongle and communicate, and solved the synchronous unsettled problem of signal.
In order to achieve the above object, the utility model has been taked following technical scheme:
A kind of for the 3D signal being modulated to the modulating apparatus of power end, it comprises:
The signal input module that is used for input 3D synchronizing signal;
Be used for the selection module that the voltage signal control switch module according to the voltage signal of the control end output of master chip and signal input module output opens and closes;
Be used for according to the voltage signal of selecting module output and signal input module output voltage signal, select the Voltage-output of feeder ear to power end or the 3D synchronizing signal outputed to the switch module of power end;
The input of described selection module connects the control end of master chip, the 1st end of the output connecting valve module of selection module and the output of signal input module, the input of described signal input module connects the 3D signal end, the 2nd end of described switch module connects feeder ear, the output of signal input module and the 1st end of switch module, and the 3rd end of switch module connects power end.
Described for the 3D signal being modulated to the modulating apparatus of power end, wherein, described selection module comprises the first triode, the first resistance and the second resistance; One end of described the first resistance connects collector electrode, the 1st end of switch module and the output of signal input module of the first triode, the other end of the first resistance connects feeder ear, the base stage of described the first triode connects the control end of master chip, the grounded emitter of the first triode by the second resistance.
Described for the 3D signal being modulated to the modulating apparatus of power end, wherein, described signal input module comprises the second triode, the 3rd resistance and the 4th resistance; The collector electrode of described the second triode connects an end of the 3rd resistance, the output of the 1st end of the other end connecting valve module of described the 3rd resistance and selection module, the base stage of the second triode connects 3D signal end, the grounded emitter of the second triode by the 4th resistance.
Described for the 3D signal being modulated to the modulating apparatus of power end, wherein, described switch module comprises field effect transistor; The source electrode of described field effect transistor connects feeder ear, the other end of the 3rd resistance, the grid of field effect transistor and the collector electrode of the first triode, and the drain electrode of described field effect transistor connects power end.
Described it also comprises the 5th resistance for the 3D signal being modulated to the modulating apparatus of power end, and an end of described the 5th resistance connects the other end of the 3rd resistance, and the other end of the 5th resistance connects the source electrode of feeder ear and field effect transistor.
Described for the 3D signal being modulated to the modulating apparatus of power end, wherein, described the first triode is the NPN triode.
Described for the 3D signal being modulated to the modulating apparatus of power end, wherein, described the second triode is the NPN triode.
Described for the 3D signal being modulated to the modulating apparatus of power end, wherein, described field effect transistor is the PMOS pipe.
Described for the 3D signal being modulated to the modulating apparatus of power end, it also comprises magnetic bead; One end of described magnetic bead connects feeder ear, the 2nd end of the other end connecting valve module of magnetic bead and the output of signal input module.
Described for the 3D signal being modulated to the modulating apparatus of power end, it also comprises the first diode and the second diode; The negative pole of described the first diode connects feeder ear, and the positive pole of the first diode connects the negative pole of the second diode, the 3rd end and the power end of switch module, the plus earth of the second diode.
Compared to prior art, the modulating apparatus that is used for the 3D signal is modulated to power end that the utility model provides, by selecting module to open and close according to the voltage signal of the control end output of master chip and the voltage signal control switch module of signal input module output, by voltage signal, the selection of switch module according to the voltage signal of selecting module output and signal input module output, the 3D synchronizing signal is outputed on the power end of USB interface, realize communicating by letter between 3D synchronizing signal and Dongle, also solved the synchronous unsettled problem of signal.
Description of drawings
Fig. 1 is the circuit diagram that the utility model is used for the 3D signal is modulated to the modulating apparatus of power end.
Embodiment
It is a kind of for the 3D signal being modulated to the modulating apparatus of power end that the utility model provides, this modulating apparatus is arranged in television set, what insert for detection of the USB interface of television set is Dongle or USB flash disk, is Dongle when detecting, and the 3D signal is modulated to power end.Power end described in the utility model is namely the power end of USB interface, and the 3D signal is namely the 3D synchronizing signal.For making the purpose of this utility model, technical scheme and effect clearer, clear and definite, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.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.
See also Fig. 1, it is used for the 3D signal is modulated to the circuit diagram of the modulating apparatus of power end for the utility model.As shown in Figure 1, modulating apparatus comprises selection module 100, signal input module 200 and switch module 300.The input IN1 of described selection module 100 connects the control end SEL of master chip, the 1st end of the output OUT1 connecting valve module 300 of selection module 100 and the output OUT2 of signal input module 200, the input IN2 of described signal input module 200 connects 3D signal end SYNC, the 2nd end of described switch module 300 connects feeder ear, the output OUT2 of signal input module 200 and the 1st end of switch module 300, and the 3rd end of switch module 300 connects power end OUT.Wherein, master chip is existing module, and what it can identify the USB interface insertion is Dongle or USB flash disk.The utility model is connected the control end SEL of master chip with the input IN1 that selects module 100, can be according to the height judgement USB interface insertion of the voltage signal of this control end SEL output be Dongle or USB flash disk.When USB interface was inserted Dongle, master chip can recognize Dongle, its control end SEL output low level; When USB interface was inserted USB flash disk, master chip was identified less than Dongle, and its control end SEL exports high level.Described feeder ear provides 5V voltage, and the 3D signal end SYNC provide the 3D synchronizing signal.
Wherein, described modulating apparatus also comprises magnetic bead L, the first diode D1 and the second diode D2.The end of described magnetic bead L connects feeder ear, the 2nd end of the other end connecting valve module 300 of magnetic bead L and the output of signal input module 200.The negative pole of described the first diode D1 connects feeder ear, and the positive pole of the first diode D1 connects the negative pole of the second diode D2, the 3rd end and the power end OUT of switch module 300, the plus earth of the second diode D2.Described magnetic bead L disturbs for the high-frequency noise on the power line that suppresses feeder ear output and spike.Described the first diode D1 and the second diode D2 are combined into a clamp voltage module, guarantee from the stability of the voltage of power end OUT output.
Described selection module 100 is used for opening and closing according to the voltage signal control switch module 300 of the voltage signal of the control end SEL output of master chip and signal input module 200 outputs, and it comprises the first triode Q1, the first resistance R 1 and the second resistance R 2; Described the first triode Q1 is the NPN triode.One end of described the first resistance R 1 connects collector electrode, the 1st end of switch module 300 and the output OUT2 of signal input module 200 of the first triode Q1, the other end of the first resistance R 1 connects feeder ear, the base stage of described the first triode Q1 connects the control end SEL of master chip, the grounded emitter of the first triode Q1 by the second resistance R 2.The voltage signal of the control end SEL output of master chip is controlled the break-make of the first triode Q1 by selecting the input IN1 input of module 100.The collector electrode of the first triode Q1 is namely the output OUT1 that selects module 100.The first resistance R 1 is also called and is drawn resistance, draws on can the voltage with the collector electrode of the first triode Q1 when the control end SEL of master chip input low level to be 5V.The second resistance is used for the base stage protection of the first triode Q1, avoids the excessive first triode Q1 that burns out of base current that inputs.
Described signal input module 200 is used for input 3D synchronizing signal, and it comprises the second triode Q2, the 3rd resistance R 3 and the 4th resistance R 4; Described the second triode Q2 is the NPN triode.The collector electrode of described the second triode Q2 connects an end of the 3rd resistance R 3, the other end of described the 3rd resistance R 3, namely be signal input module 200 output OUT2 connecting valve module 300 the 1st end and select the output OUT1 of module 100, the base stage of the second triode Q2 connects 3D signal end SYNC, the grounded emitter of the second triode Q2 by the 4th resistance R 4.3D signal end SYNC is used for input 3D synchronizing signal as the input IN2 of signal input module 200.The resistance of the 3rd resistance R 3 is very little, is equivalent to wire, and its resistance can be ignored in the present embodiment.When 3D signal end SYNC input high level conducting the second triode Q2, can make the output OUT2 of signal input module 200 by the 3rd resistance R 3 is low level.
Described switch module 300 outputs to power end with the Voltage-output of feeder ear to power end or with the 3D synchronizing signal according to voltage signal, the selection of the voltage signal of selecting module 100 outputs and signal input module 200 outputs, it comprises field effect transistor Q3, is the PMOS pipe.The source electrode of described field effect transistor Q3 connects feeder ear, the other end of the 3rd resistance R 3, the grid of field effect transistor Q3 and the collector electrode of the first triode Q1, and the drain electrode of described field effect transistor Q3 connects power end OUT.Wherein, the 1st, 2,3 ends of the grid of described field effect transistor Q3, source electrode, the corresponding switch module 300 of drain electrode difference.
Also dragged down by the 3rd resistance R for fear of the 5V voltage through the magnetic bead de-noising, described modulating apparatus also comprises the 5th resistance R 5, one end of described the 5th resistance R 5 connects the other end of the 3rd resistance R 3, and the other end of the 5th resistance R 5 connects the source electrode of field effect transistor Q3, also connects feeder ear by magnetic bead L.The 5th resistance R 5 also is divider resistance, and its resistance is larger, and preferred, its resistance is 47K in the present embodiment.When the output OUT2 of input module 200 is low level, by drawing on the 5th resistance R 5, can make the other end of the 5th resistance R 5 keep the high level of 5V, guarantee that the 5V voltage of feeder ear can be input to the source electrode of field effect transistor Q3.
Please continue to consult Fig. 1, whether the below will insert Dongle according to the USB interface of television set operation principle of the present utility model will be described.
When USB interface is inserted Dongle, during the control end SEL output low level of master chip, the first triode Q1 cut-off, 3D signal end SYNC sends the 3D synchronizing signal simultaneously.When the 3D synchronizing signal is high level, the second triode Q2 conducting, the output OUT2 of input module 200 by drop-down be low level, also will select simultaneously the voltage of output OUT1 of module 100 drop-down is low level, field effect transistor Q3 conducting.Owing to drawing on the 5th resistance, provide 5V voltage through field effect transistor Q3 to power end OUT after the 5V voltage process magnetic bead de-noising of feeder ear.When the 3D synchronizing signal is low level, the second triode Q2 cut-off, the grid voltage Vg of field effect transistor Q3 is less than its source voltage Vs, and field effect transistor Q3 is conducting still.When the 3D synchronizing signal becomes low level from high level, namely during the trailing edge of 3D synchronizing signal, the burr of 3V left and right can appear in the voltage of power end OUT.When the 3D synchronizing signal becomes high level from low level, namely during rising edge, the voltage of power end OUT can fluctuate more than 5V, and fluctuating range is in 1V.The 3D synchronizing signal just is superimposed upon on power end OUT like this, then launches with the RF signal after encrypting through the Dongle demodulation.The 3D synchronizing signal just can realize the transmission of signal by the Dongle of remote controller like this, simultaneously, the 3D synchronizing signal is modulated on the power supply of USB and just can solves the synchronous unsettled problem of signal.
When USB interface was inserted USB flash disk, during the control end SEL output high level of master chip, the first triode Q1 conducting made field effect transistor Q3 conducting, and power end OUT keeps the high level of 5V always, to the USB flash disk power supply, to guarantee that USB flash disk can work.
According to above-mentioned operation principle as can be known, when USB interface is inserted Dongle, the power end that modulating apparatus can be modulated to the 3D synchronizing signal USB interface solves 3D eyeglass signal and the nonsynchronous problem of TV signal, realizes that 3D glasses and television set share the function that Dongle communicates.When USB interface is inserted USB flash disk, this modulating apparatus is converted into the power supply circuits of USB flash disk it is powered, and has guaranteed communicating by letter of USB flash disk and television set.It is 3D synchronizing signal or the voltage of voltage end that this modulating apparatus can be controlled what modulate on the power end of USB interface, can realize the selection transmission of unlike signal, can not affect each other again.
Be understandable that; for those of ordinary skills; can be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the utility model.
Claims (10)
1. a modulating apparatus that is used for the 3D signal is modulated to power end, is characterized in that, comprising:
The signal input module that is used for input 3D synchronizing signal;
Be used for the selection module that the voltage signal control switch module according to the voltage signal of the control end output of master chip and signal input module output opens and closes;
Be used for according to the voltage signal of selecting module output and signal input module output voltage signal, select the Voltage-output of feeder ear to power end or the 3D synchronizing signal outputed to the switch module of power end;
The input of described selection module connects the control end of master chip, the 1st end of the output connecting valve module of selection module and the output of signal input module, the input of described signal input module connects the 3D signal end, the 2nd end of described switch module connects feeder ear, the output of signal input module and the 1st end of switch module, and the 3rd end of switch module connects power end.
2. according to claim 1ly it is characterized in that for the 3D signal being modulated to the modulating apparatus of power end, described selection module comprises the first triode, the first resistance and the second resistance; One end of described the first resistance connects collector electrode, the 1st end of switch module and the output of signal input module of the first triode, the other end of the first resistance connects feeder ear, the base stage of described the first triode connects the control end of master chip, the grounded emitter of the first triode by the second resistance.
3. according to claim 2ly it is characterized in that for the 3D signal being modulated to the modulating apparatus of power end, described signal input module comprises the second triode, the 3rd resistance and the 4th resistance; The collector electrode of described the second triode connects an end of the 3rd resistance, the output of the 1st end of the other end connecting valve module of described the 3rd resistance and selection module, the base stage of the second triode connects 3D signal end, the grounded emitter of the second triode by the 4th resistance.
4. according to claim 3ly it is characterized in that for the 3D signal being modulated to the modulating apparatus of power end, described switch module comprises field effect transistor; The source electrode of described field effect transistor connects feeder ear, the other end of the 3rd resistance, the grid of field effect transistor and the collector electrode of the first triode, and the drain electrode of described field effect transistor connects power end.
5. according to claim 4 for the 3D signal being modulated to the modulating apparatus of power end, it is characterized in that, also comprise the 5th resistance, an end of described the 5th resistance connects the other end of the 3rd resistance, and the other end of the 5th resistance connects the source electrode of feeder ear and field effect transistor.
6. according to claim 2ly it is characterized in that for the 3D signal being modulated to the modulating apparatus of power end, described the first triode is the NPN triode.
7. according to claim 3ly it is characterized in that for the 3D signal being modulated to the modulating apparatus of power end, described the second triode is the NPN triode.
8. according to claim 4ly it is characterized in that for the 3D signal being modulated to the modulating apparatus of power end, described field effect transistor is the PMOS pipe.
9. according to claim 1ly it is characterized in that for the 3D signal being modulated to the modulating apparatus of power end, also comprise magnetic bead; One end of described magnetic bead connects feeder ear, the 2nd end of the other end connecting valve module of magnetic bead and the output of signal input module.
10. according to claim 1ly it is characterized in that for the 3D signal being modulated to the modulating apparatus of power end, also comprise the first diode and the second diode; The negative pole of described the first diode connects feeder ear, and the positive pole of the first diode connects the negative pole of the second diode, the 3rd end and the power end of switch module, the plus earth of the second diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585499 CN202931492U (en) | 2012-11-08 | 2012-11-08 | Signal modulation apparatus for modulating 3D signal to power supply terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585499 CN202931492U (en) | 2012-11-08 | 2012-11-08 | Signal modulation apparatus for modulating 3D signal to power supply terminal |
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| CN202931492U true CN202931492U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220585499 Expired - Fee Related CN202931492U (en) | 2012-11-08 | 2012-11-08 | Signal modulation apparatus for modulating 3D signal to power supply terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104469339A (en) * | 2014-11-19 | 2015-03-25 | 江苏亿成光电科技有限公司 | 3D eye control circuit |
| CN105357424A (en) * | 2015-11-13 | 2016-02-24 | 来安县信隆机械科技有限公司 | Camera controlled circuit and camera |
-
2012
- 2012-11-08 CN CN 201220585499 patent/CN202931492U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104469339A (en) * | 2014-11-19 | 2015-03-25 | 江苏亿成光电科技有限公司 | 3D eye control circuit |
| CN105357424A (en) * | 2015-11-13 | 2016-02-24 | 来安县信隆机械科技有限公司 | Camera controlled circuit and camera |
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Granted publication date: 20130508 Termination date: 20171108 |