CN107770917A - Adjustable type LED based on audio signal - Google Patents
Adjustable type LED based on audio signal Download PDFInfo
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- CN107770917A CN107770917A CN201711162119.9A CN201711162119A CN107770917A CN 107770917 A CN107770917 A CN 107770917A CN 201711162119 A CN201711162119 A CN 201711162119A CN 107770917 A CN107770917 A CN 107770917A
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- 230000005236 sound signal Effects 0.000 title claims abstract description 55
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 7
- 230000001629 suppression Effects 0.000 claims description 7
- 230000001052 transient effect Effects 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 2
- 238000005286 illumination Methods 0.000 abstract description 17
- 230000008451 emotion Effects 0.000 abstract description 3
- 210000001328 optic nerve Anatomy 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 2
- 101000662518 Solanum tuberosum Sucrose synthase Proteins 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention provides a kind of adjustable type LED based on audio signal, and it includes：Decoder, controller and some LEDs controlled by the decoder and controller, the brightness and color that some LEDs illuminate under the control of the decoder and controller with the change synchronous change of external voice.The adjustable type LED based on audio signal of the present invention can gather and handle audio signal, it is allowed to form the signal that can be controlled the brightness of illumination and color of the adjustable type LED based on audio signal, the brightness of illumination and color for making the adjustable type LED based on audio signal synchronize change with external audio, enhance feeling way of the people to music, music is shown in a manner of vision, user's optic nerve is stimulated, plays a part of adjusting user emotion.
Description
Technical field
The present invention relates to a kind of LED, more particularly to a kind of adjustable type LED based on audio signal.
Background technology
At present, music lamp is the illumination production that a kind of brightness of illumination can enter line translation with the tone and volume of the sound of outside
Product, it can be applied to a variety of occasions such as family, decor, bar.Specifically, existing music lamp includes some LED illuminations
Device and the control chip that some LED illumination devices are controlled.However, the brightness of illumination of existing music lamp and
Color can not synchronize change according to the sound of outside.So as to which music can not be experienced well while music is appreciated
The visual enjoyment brought.Therefore, how voice signal is converted into controllable music lamp brightness of illumination and the electric current of color change
Signal, it is the technical problem that music lamp is badly in need of solving.In view of the above-mentioned problems, it is necessary to propose further solution.
The content of the invention
The present invention is intended to provide a kind of adjustable type LED based on audio signal, to overcome present in prior art not
Foot.
In order to solve the above technical problems, the technical scheme is that：
A kind of adjustable type LED based on audio signal, it includes：Decoder, controller and by the decoder and
Some LEDs of controller control, some LEDs are under the control of the decoder and controller with the change of external voice
Change brightness and the color of synchronous change illumination；
The controller includes：Control circuit and the current rectifying and wave filtering circuit being connected with the control circuit；
The control circuit includes audio signal sample circuit and the control being connected with the audio signal sample circuit
Circuit processed, the audio signal sample circuit include what is be sequentially connected：Input block, switch unit, volume control unit, current potential
Device, stopping direct current unit, electrical level shift units；The control circuit includes what is be sequentially connected：First single-chip microcomputer, serial port unit, prevent
Thunder protection location and signal output unit, the electrical level shift units are connected with first single-chip microcomputer；
The decoder includes：Signal receiving module, signal decoder module, signal drop-down module, constant-current driven module, institute
Signal receiving module is stated with the signal output unit to be connected；
The signal decoder module is connected with the signal receiving module, and the signal receiving module, which receives, to be needed to decode
Signal, and send it to the signal decoder module, the signal drop-down module is connected with the signal decoder module,
The signal drop-down module receives the pwm signal exported after the signal decoder module decoding, the constant-current driven module and institute
State signal drop-down module to be connected, the constant-current driven module receives the signal of the signal drop-down module output, the power supply
Powered for the signal decoder module.
As the improvement of the adjustable type LED based on audio signal of the present invention, the current rectifying and wave filtering circuit is included successively
Connection：Rectification unit, the first filter unit, voltage regulation unit and the second filter unit, the rectification unit include rectification two
Pole pipe, first filter unit include the first polar capacitor, and the voltage regulation unit includes voltage stabilizing triode, second filtering
Unit includes the second polar capacitor.
As the improvement of the adjustable type LED based on audio signal of the present invention, the input block includes audio input
Unit and microphone input unit, the volume control unit by the switch unit optionally with the audio input list
Member or microphone input unit are connected, and the audio input unit includes earphone socket, and the microphone input unit includes
Amplifier of microphone.
As the improvement of the adjustable type LED based on audio signal of the present invention, the volume control unit includes
Volume control chip, the stopping direct current unit include the 3rd polar capacitor, and the electrical level shift units include parallel with one another the
The second resistance that one resistance and quadripolarity electric capacity and the first resistor and quadripolarity electric capacity are in series.
As the improvement of the adjustable type LED based on audio signal of the present invention, the serial port unit includes serial line interface,
The lightning protection unit includes diode and fuse.
As the improvement of the adjustable type LED based on audio signal of the present invention, first single-chip microcomputer also indicates with LED
Lamp is connected with dot matrix signal output unit.
As the improvement of the adjustable type LED based on audio signal of the present invention, the signal receiving module includes：Transmitting-receiving
Chip, Transient Suppression Diode, DMX interfaces, Transient Suppression Diode and the DMX interface are connected with the transceiving chip respectively
Connect, the state suppresses to be additionally provided with fuse between diode and DMX interfaces and the transceiving chip.
As the improvement of the adjustable type LED based on audio signal of the present invention, the signal decoder module includes second
Single-chip microcomputer.
As the improvement of the adjustable type LED based on audio signal of the present invention, signal drop-down module include 4 tunnels or
The tunnel of person 9 signal pull-down circuit parallel with one another.
As the present invention the adjustable type LED based on audio signal improvement, the constant-current driven module include 4 tunnels or
The tunnel of person 9 constant-current drive circuit parallel with one another, constant-current drive circuit described in any road include：Driving chip, the driving chip
It is connected with the first pin being connected with metal-oxide-semiconductor, with signal pull-down circuit is connected all the way second pin, with the first electric capacity
The 3rd pin that connects, the 4th pin being connected with the second electric capacity, the 6th of the 5th pin being connected with resistance and ground connection the
Pin, the grid of the metal-oxide-semiconductor are connected with first pin, and source electrode is connected with the resistance, drain electrode with diode and
Inductor is connected.
Compared with prior art, the beneficial effects of the invention are as follows：The adjustable type LED energy based on audio signal of the present invention
Enough gather and handle audio signal, being allowed to be formed can be to the brightness of illumination and color of the adjustable type LED based on audio signal
The signal being controlled, the brightness of illumination and color for making the adjustable type LED based on audio signal synchronize with external audio
Change, enhances feeling way of the people to music, music is shown in a manner of vision, and user's optic nerve is pierced
Swash, play a part of adjusting user emotion.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that the module of the embodiment of controller one in the adjustable type LED based on audio signal of the invention is shown
It is intended to；
Fig. 2 is the circuit diagram of the part of module unit of controller in Fig. 1；
Fig. 3 is the circuit diagram of the part of module unit of controller in Fig. 1；
Fig. 4 is the circuit diagram of the part of module unit of controller in Fig. 1；
Fig. 5 is the circuit diagram of the part of module unit of controller in Fig. 1；
Fig. 6 is the circuit diagram of the part of module unit of controller in Fig. 1；
Fig. 7 is the circuit diagram of the part of module unit of controller in Fig. 1；
Fig. 8 is that the module of the embodiment of decoder one in the adjustable type LED based on audio signal of the invention is shown
It is intended to；
Fig. 9 is the circuit diagram of the signal receiving module of decoder in Fig. 8；
Figure 10 is the circuit diagram of the signal decoder module of decoder in Fig. 8；
Figure 11 is that the signal of decoder in Fig. 8 pulls down the circuit diagram of module；
Figure 12 is the circuit diagram of the constant-current driven module of decoder in Fig. 8；
Figure 13 is the circuit diagram of the power supply of decoder in Fig. 8.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The adjustable type LED based on audio signal of the present invention includes：Decoder, controller and by the decoder and
Some LEDs of controller control, some LEDs are under the control of the decoder and controller with the change of external voice
Change brightness and the color of synchronous change illumination.
As shown in Fig. 1 to 7, the controller includes：Control circuit and the rectifying and wave-filtering being connected with the control circuit
Circuit
The electric current that the current rectifying and wave filtering circuit is used to provide the power supply of the controller carries out rectification, filtering, thinks institute
State the electric current that control circuit provides stable output.Specifically, the current rectifying and wave filtering circuit includes what is be sequentially connected：Rectification unit 1,
First filter unit 2, the filter unit 4 of voltage regulation unit 3 and second.
Wherein, the rectification unit 1 includes commutation diode, and first filter unit 2 includes the first polar capacitor, institute
Stating voltage regulation unit 3 includes voltage stabilizing triode, and second filter unit 4 includes the second polar capacitor.In one embodiment,
The model AMS1117 of the voltage stabilizing triode.First polar capacitor is 100 μ F/25V, and the second polar capacitor is 470 μ
F/10V。
The control circuit includes audio signal sample circuit and the control being connected with the audio signal sample circuit
Circuit processed.Specifically, the audio signal sample circuit is used to gather and handle audio signal, and it includes what is be sequentially connected：It is defeated
Enter unit, switch unit 7, volume control unit 8, potentiometer 9, stopping direct current unit 10, electrical level shift units 11.
Wherein, the input block includes audio input unit 5 and microphone input unit 6.The volume control unit 8
Optionally it is connected by the switch unit 7 with the audio input unit 5 or microphone input unit 6.The audio
Input block 5 includes earphone socket, and the microphone input unit 6 includes amplifier of microphone, and the switch unit 7 can be
Single-pole double-throw switch (SPDT).In one embodiment, the model MAX9812 of the amplifier of microphone.
The volume control unit 8 is used to be controlled the volume of the voice signal of collection, the volume control unit 8
Including including volume control chip.In one embodiment, the model M62429L of the volume control chip.
Voice signal after the volume control unit 8 processing moves through the potentiometer 9, stopping direct current unit 10, level
Bit location 11, transmit to the control circuit.The stopping direct current unit 10 includes the 3rd polar capacitor.The level shift
Unit 11 includes first resistor and quadripolarity electric capacity parallel with one another, is in series with the first resistor and quadripolarity electric capacity
Second resistance.Wherein, the 3rd polar capacitor is 10 μ F/50V, and quadripolarity electric capacity is 100 μ F/16V.
The control circuit includes what is be sequentially connected：First single-chip microcomputer 12, serial port unit 13, lightning protection unit 14 and
Signal output unit 15, the electrical level shift units 11 are connected with first single-chip microcomputer 12.
Wherein, first single-chip microcomputer 12 receives and handled the signal that the electrical level shift units 11 are sent.Through described
One single-chip microcomputer 12 processing signal successively through the serial port unit 13, lightning protection unit 14 and signal output unit 15 according to
DMX agreements export, so that the brightness of illumination to the adjustable type LED based on audio signal and color are controlled.In a reality
Apply in mode, the model STM32F103C8T6 of first single-chip microcomputer 12.In addition, first single-chip microcomputer 12 also refers to LED
Show that lamp 16 is connected with dot matrix signal output unit 17.The serial port unit 13 includes serial line interface, the lightning protection unit
14 include diode and fuse.
As shown in Fig. 8 to 13, the decoder includes：Drawing-die under signal receiving module 18, signal decoder module 19, signal
Block 20, constant-current driven module 21, the signal receiving module 18 are connected with the signal output unit 15, the constant current driving
The control signal of some LEDs described in the output control of module 21.
As shown in figure 9, the signal receiving module 18 is connected with the signal decoder module 19, it is used for received from institute
State the signal that the signal output unit 15 is sent.Specifically, the signal receiving module 18 includes：Transceiving chip 181, transient state
Suppress diode 182, DMX interfaces 183.Wherein, the Transient Suppression Diode 182 and DMX interfaces 183 respectively with the transmitting-receiving
Chip 181 is connected, and is additionally provided between the state suppression diode 182 and DMX interfaces 183 and the transceiving chip 181 molten
Disconnected device.In one embodiment, the model SP3485 of the transceiving chip, the model of the Transient Suppression Diode
PSM712。
As shown in Figure 10, the signal decoder module 19 is connected with signal drop-down module 20, and it is used for receiving
Signal carry out decoding process.Specifically, the signal decoder module 19 includes second singlechip, wherein, second monolithic
Machine has the input pin being connected with the transceiving chip 11, and draws with the output that signal drop-down module 20 is connected
Pin.So as to which the signal that the needs of input decode is received through the input pin by the second singlechip, through second monolithic
After machine decoding the output pwm signal of module 20 is pulled down from the output pin to the signal.In one embodiment, described
The model STC15L2K08S2 of two single-chip microcomputers, the second singlechip of the model have 9 pwm signal output pins.
As shown in figure 11, the signal drop-down module 20 is connected with the constant-current driven module 21, and it is used to prevent out
High level during machine.In one embodiment, the signal drop-down module is including under the signal parallel with one another of 4 tunnels or 9 tunnels
Puller circuit, any of which road signal pull-down circuit include two resistors parallel with one another, and one of resistance-grounded system connects,
Another resistor is connected with the constant-current driven module 21.
As shown in figure 12, the constant-current driven module 21 receives the signal that the signal drop-down module 20 exports.Specifically,
The constant-current driven module 21 includes 4 tunnels or 9 tunnels constant-current drive circuit parallel with one another.
Constant-current drive circuit described in any road includes：Driving chip 41, the driving chip 41 has to be connected with metal-oxide-semiconductor 42
The first pin for connecing, with signal pull-down circuit is connected all the way second pin, the 3rd pin being connected with the first electric capacity 43,
6th pin of the 4th pin that is connected with the second electric capacity 44, the 5th pin being connected with resistance 45 and ground connection.
Wherein, the grid of the metal-oxide-semiconductor 42 is connected with first pin, and source electrode is connected with the resistance 45, leakage
Pole is connected with diode 46 and inductor 47.In one embodiment, the signal of the driving chip 41 is QX9920, institute
The signal for stating metal-oxide-semiconductor 42 is CJ2310, and first electric capacity 43 is 120pF, and second electric capacity 44 is 22pF, the diode
46 model SS16.
As shown in figure 13, the decoder also includes the power supply 22 for the signal decoder module 19 power supply.
In order to establish the relation between the brightness of illumination of LED and the illuminating color and external audio intensity.The control
Audio signal sample circuit in device processed gathers audio signal, and control circuit passes through to audio signal analysis in controller, calculates
Go out the frequency and amplitude of present video, amplitude is sent in the Color Channel of this corresponding frequency.Wherein, calculated by the controller
To data be transmitted by the form of packet.9 data are comprised preferably in the packet, 9 data are right respectively
Answer the brightness of 9 kinds of colors.When the packet is sent, sent to decoder and carried out further by each self-corresponding Color Channel
Processing.
The signal receiving module of the decoder receives whole packet, and signal decoder module reads the width of the wherein color
Value, constant-current driven module is driven by PWM duty cycle size, controls LED luminance.When including 9 data in the packet
When, the signal decoder module of the decoder reads the color that data control 9 lamps respectively, realizes brightness of illumination and color with outer
Portion's audio signal synchronizes change.
In addition, the controller can not only control current decoder, moreover it is possible to control standard DMX512 decoders, current solution
Code device is also standard DMX512 decoders, can receive the control signal of standard DMX512 control platforms.
In summary, the adjustable type LED of the invention based on audio signal can gather and handle audio signal, be allowed to
The signal that can be controlled to the brightness of illumination and color of the adjustable type LED based on audio signal is formed, makes to be based on audio
The brightness of illumination and color of the adjustable type LED of signal synchronize change with external audio, enhance sense of the people to music
By mode, music is shown in a manner of vision, user's optic nerve is stimulated, plays a part of adjusting user emotion.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (10)
- A kind of 1. adjustable type LED based on audio signal, it is characterised in that the adjustable type LED based on audio signal Including：Decoder, controller and some LEDs controlled by the decoder and controller, some LEDs are described The brightness illuminated under the control of decoder and controller with the change synchronous change of external voice and color；The controller includes：Control circuit and the current rectifying and wave filtering circuit being connected with the control circuit；The control circuit includes audio signal sample circuit and the control being connected with audio signal sample circuit electricity Road, the audio signal sample circuit include what is be sequentially connected：Input block, switch unit, volume control unit, potentiometer, Stopping direct current unit, electrical level shift units；The control circuit includes what is be sequentially connected：First single-chip microcomputer, serial port unit, lightning protection are protected Shield unit and signal output unit, the electrical level shift units are connected with first single-chip microcomputer；The decoder includes：Signal receiving module, signal decoder module, signal drop-down module, constant-current driven module, the letter Number receiving module is connected with the signal output unit, the control of some LEDs described in the constant-current driven module output control Signal processed；The signal decoder module is connected with the signal receiving module, and the signal receiving module receives the letter for needing to decode Number, and the signal decoder module is sent it to, the signal drop-down module is connected with the signal decoder module, described Signal drop-down module receives the pwm signal exported after the signal decoder module decoding, the constant-current driven module and the letter Number drop-down module is connected, and the constant-current driven module receives the signal of the signal drop-down module output, and the power supply is institute State the power supply of signal decoder module.
- 2. the adjustable type LED according to claim 1 based on audio signal, it is characterised in that the rectifying and wave-filtering electricity Road includes what is be sequentially connected：Rectification unit, the first filter unit, voltage regulation unit and the second filter unit, the rectification unit Including commutation diode, first filter unit includes the first polar capacitor, and the voltage regulation unit includes voltage stabilizing triode, institute Stating the second filter unit includes the second polar capacitor.
- 3. the adjustable type LED according to claim 1 based on audio signal, it is characterised in that the input block bag Include audio input unit and microphone input unit, the volume control unit by the switch unit optionally with it is described Audio input unit or microphone input unit are connected, and the audio input unit includes earphone socket, and the microphone is defeated Entering unit includes amplifier of microphone.
- 4. the adjustable type LED according to claim 1 based on audio signal, it is characterised in that the volume control is single Member includes volume control chip, and the stopping direct current unit includes the 3rd polar capacitor, and the electrical level shift units include phase The second resistance that mutually first resistor in parallel and quadripolarity electric capacity and the first resistor and quadripolarity electric capacity are in series.
- 5. the adjustable type LED according to claim 1 based on audio signal, it is characterised in that the serial port unit bag Serial line interface is included, the lightning protection unit includes diode and fuse.
- 6. the adjustable type LED according to claim 1 based on audio signal, it is characterised in that first single-chip microcomputer Also it is connected with LED light and dot matrix signal output unit.
- 7. the adjustable type LED according to claim 1 based on audio signal, it is characterised in that the signal receives mould Block includes：Transceiving chip, Transient Suppression Diode, DMX interfaces, Transient Suppression Diode and the DMX interface respectively with it is described Transceiving chip is connected, and the state suppresses to be additionally provided with fuse between diode and DMX interfaces and the transceiving chip.
- 8. the adjustable type LED according to claim 1 based on audio signal, it is characterised in that the signal decodes mould Block includes second singlechip.
- 9. the adjustable type LED according to claim 1 based on audio signal, it is characterised in that drawing-die under the signal Block includes 4 tunnels or 9 tunnels signal pull-down circuit parallel with one another.
- 10. the adjustable type LED according to claim 9 based on audio signal, it is characterised in that the constant current drives mould Including 4 tunnels or 9 tunnels constant-current drive circuit parallel with one another, constant-current drive circuit described in any road includes block：Driving chip, institute State driving chip have be connected with metal-oxide-semiconductor the first pin, with signal pull-down circuit is connected all the way second pin and the The 3rd pin that one electric capacity is connected, the 4th pin being connected with the second electric capacity, the 5th pin being connected with resistance and 6th pin of ground connection, the grid of the metal-oxide-semiconductor are connected with first pin, and source electrode is connected with the resistance, drain electrode It is connected with diode and inductor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711162119.9A CN107770917A (en) | 2017-11-21 | 2017-11-21 | Adjustable type LED based on audio signal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711162119.9A CN107770917A (en) | 2017-11-21 | 2017-11-21 | Adjustable type LED based on audio signal |
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| CN111182683A (en) * | 2019-11-26 | 2020-05-19 | 深圳市酷客智能科技有限公司 | Intelligent lamp belt and control method thereof |
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