CN210225392U - Wireless transmitter and wireless receiving device matched with same - Google Patents
Wireless transmitter and wireless receiving device matched with same Download PDFInfo
- Publication number
- CN210225392U CN210225392U CN201921321758.XU CN201921321758U CN210225392U CN 210225392 U CN210225392 U CN 210225392U CN 201921321758 U CN201921321758 U CN 201921321758U CN 210225392 U CN210225392 U CN 210225392U
- Authority
- CN
- China
- Prior art keywords
- module
- audio
- circuit
- control signal
- wireless transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Transmitters (AREA)
Abstract
The utility model provides a wireless transmitter and wireless receiving device who matches with wireless transmitter belongs to the communication field. The utility model discloses wireless transmitter includes the casing, sets up the wireless transmitter circuit in the casing and the power module for the wireless transmitter power supply, be equipped with audio input interface, the transmitting antenna who links to each other with the wireless transmitter circuit respectively on the casing, wireless transmitter still includes the control signal input structure that links to each other with the wireless transmitter circuit, the sound source audio signal and the control signal that the wireless transmitter circuit will receive synthesize into modulation signal, then launch through transmitting antenna. The utility model has the advantages that: the audio frequency, light display and receiving channel of the wireless receiving device can be controlled simultaneously.
Description
Technical Field
The utility model relates to the field of communication, especially, relate to a wireless transmitter, still relate to a wireless receiving device who matches with wireless transmitter.
Background
The earphone is used as a signal conversion device to receive electric signals generated by the media player or the receiver, converts the electric signals into sound waves by the loudspeaker to be transmitted to human ears, and also comprises an earphone for collecting audio, and then transmits the collected audio to the media player or the receiver for information interaction.
The existing earphones are generally used independently or are externally connected with a sound source through signal lines, some earphones are internally provided with the sound source for playing, even some earphones are provided with receiving antennas, the earphones are only used as audio playing equipment, have no control effect and cannot be linked with lamplight simultaneously.
SUMMERY OF THE UTILITY MODEL
For solving the problem among the prior art, the utility model provides a wireless transmitter still relates to a wireless receiving earphone who matches with wireless transmitter.
The utility model discloses wireless transmitter includes the casing, sets up the wireless transmitter circuit in the casing and the power module for the wireless transmitter power supply, be equipped with audio input interface, the transmitting antenna who links to each other with the wireless transmitter circuit respectively on the casing, wireless transmitter still includes the control signal input structure that links to each other with the wireless transmitter circuit, the sound source audio signal and the control signal that the wireless transmitter circuit will receive synthesize into modulation signal, then launch through transmitting antenna.
The utility model discloses make further improvement, control signal input structure includes through external keyboard, computer, IPAD, the cell-phone of interface, the external equipment that has sound source signal and can convert sound into sound source signal of audio input interface.
The utility model discloses make further improvement, the wireless transmitter circuit includes sound source audio input module, audio compression amplifier module, stereo and control signal modulation module, high frequency amplifier module, single chip module and control signal input interface module, sound source audio input module output links to each other with audio compression amplifier module input, and audio compression amplifier module output links to each other with stereo and control signal modulation module input, stereo and control signal modulation module output links to each other with high frequency amplifier module input, and high frequency amplifier module output links to each other with transmitting antenna, control signal input interface module input links to each other with control signal input device, and the output links to each other with the single chip module input, singlechip and stereo and control signal modulation module both way junction.
The utility model discloses do further improvement, still include the high frequency lock module of frequently, the high frequency lock module input of frequently links to each other with the single chip module output, the high frequency lock module output of frequently links to each other with the high frequency amplification module input.
The utility model discloses make further improvement, high frequency locking module includes high frequency locking chip IC5, pin 1 of high frequency locking chip IC5 connects pin 1 to connect the interface of high frequency amplification module TP5, and pin 2 passes through electric capacity C41 ground connection, and pin 3 passes through resistance R70 and links to each other with resistance R93, R71, electric capacity C51's one end respectively, the resistance R93 other end links to each other with high frequency amplification input and grounded capacitance C32 respectively, and the resistance R71 other end links to each other with grounded capacitance C11, and electric capacity C51 other end ground connection, pin 4 and pin 13 ground connection of high frequency locking chip IC5, pin 5, pin 9, pin 10, pin 12, pin 14 and pin 16 are suspended, and pin 6-8 respectively with the different PB pins of singlechip, pin 11 of high frequency locking chip IC5 passes through electric capacity C50 and links to each other with grounded capacitance C53 and the oscillator of singlechip module, pin 15 of singlechip frequency locking chip IC5 connects V5V through power supply resistor R39, and is connected to a ground capacitor C28.
The utility model discloses do further improvement, stereo and control signal modulation module include modulation chip IC9, modulation chip IC 9 's pin 9, 10 connect the left sound track and the right sound track audio signal of sound source audio input module output respectively, and pin 2 connects the control signal of singlechip output, and pin 5 outputs the modulation signal after the synthesis, and pin 3 connects the power.
The utility model provides a with wireless receiving arrangement that wireless transmitter matches, including the device body, set up receiving antenna, processing circuit, audio playback structure, channel selection structure and the power on the device body, the modulation signal that processing circuit sent through the wireless transmitter that receiving antenna received separates for audio signal and control signal, and audio signal passes through audio playback structure broadcast audio frequency, and control signal is used for controlling the device.
The utility model discloses do further improvement, audio frequency extension and amplifier circuit output link to each other with earphone loudspeaker, the output of singlechip links to each other with intermediate frequency demodulation circuit input and PLL phase-locked circuit input respectively, PLL phase-locked circuit output links to each other with local oscillator circuit input, local oscillator circuit output links to each other with high frequency amplification frequency conversion circuit input.
The utility model discloses do further improvement, still be equipped with light-emitting structure on the device body, processing circuit still includes the light display circuit who links to each other with light-emitting structure mesoscopic light module group, light display circuit's input links to each other with the singlechip output, control signal includes luminous control signal and/or channel control signal.
The utility model discloses make further improvement, wireless receiving arrangement is wireless receiving earphone, wireless receiving earphone includes the bandeau and sets up the audio playback structure that is used for playing the audio frequency at bandeau both ends, and earphone loudspeaker set up in audio playback structure, audio playback structure one side outwards is equipped with light-emitting structure, light-emitting structure is including setting up the base on sound production module and setting up the clear cover plate in the base top, still including the PCB board that is equipped with light display circuit and the light source of setting on the PCB board, PCB board and light source are fixed in base and clear cover plate enclose synthetic cavity, clear cover plate includes the lid and sets up at lid middle part and the holding tank of protrusion lid take the altitude
Compared with the prior art, the beneficial effects of the utility model are that: can send simultaneously and contain audio frequency and control signal, realize wireless receiving device audio playback and channel and light joint control, be particularly useful for dance floor, a plurality of earphone occasions such as meeting are put together, can establish comparatively dazzling light atmosphere, and the range of application is wider. The side surface and the top surface of the wireless receiving earphone can emit light, so that the wireless receiving earphone is safer and uniform in light emission at night and can be used as a small night lamp; through channel control, the equipment works in one or more set channels, and the use is more convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a block diagram of a wireless transmitter architecture;
FIG. 3 is a schematic diagram of a wireless transmitter circuit;
fig. 4-9 are partial enlarged views of fig. 3, wherein fig. 4 is a schematic diagram of a circuit of an audio source audio input module and an audio voltage scaling module, fig. 5 is a schematic diagram of a circuit of a stereo and control signal modulation module, fig. 6 and 7 are schematic diagrams of a circuit of a single chip microcomputer module, fig. 8 is a schematic diagram of a circuit of a high frequency locking module, and fig. 9 is a schematic diagram of a circuit of a power supply module;
fig. 10 is a block diagram of a wireless receiving headset;
FIG. 11 is a schematic diagram of the headset circuit;
FIG. 12 is a schematic structural view of the present invention;
FIG. 13 is a schematic side-view exploded view of a light-emitting structure;
FIG. 14 is a front view of the transparent cover plate;
fig. 15 is a schematic view of the structure of the back side of the transparent cover plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the utility model discloses wireless transmitter A includes casing A1, sets up the wireless transmitter circuit in casing A1 and the power module for wireless transmitter A power supply, be equipped with audio input interface A3, the transmitting antenna A2 that links to each other with the wireless transmitter circuit respectively on the casing A1, wireless transmitter A still includes the control signal input structure A4 that links to each other with the wireless transmitter circuit, the wireless transmitter circuit synthesizes the sound source audio signal and the control signal of receiving into modulation signal, then launches through transmitting antenna A2.
As an embodiment of the present invention, the control signal input structure a4 of the present embodiment is a keyboard externally connected through an interface, and the control signal input structure a4 of the present embodiment may also be a computer, an IPAD, a mobile phone, or other devices capable of freely and subjectively inputting. The control signal input structure a4 of this example may be a channel setting control signal in addition to a light control signal that controls the illusive effect of light. Such as: the wireless receiver can receive ten channels originally, but after the wireless receiver is set, the wireless receiver can shield other channels, only the channel set by the transmitter is adopted to receive data, the trouble of adjusting the channels is reduced, and the use is more humanized.
The control signal can be defined as other control signals, and the utility model discloses can make audio signal and control signal synchronous transmission, synchronous demodulation, can not receive the influence each other moreover, neither can influence audio signal's tone quality nor can influence control signal's disorder.
As shown in fig. 2, the utility model discloses wireless transmitter circuit includes sound source audio input module, audio compression amplifier module, stereo and control signal modulation module, high frequency amplifier module, single chip module and control signal input interface module, sound source audio input module output links to each other with audio compression amplifier module input, and audio compression amplifier module output links to each other with stereo and control signal modulation module input, stereo and control signal modulation module output links to each other with high frequency amplifier module input, and high frequency amplifier module output links to each other with transmitting antenna, control signal input interface module input links to each other with control signal input device, and the output links to each other with single chip module input, singlechip and stereo and control signal modulation module both way junction.
The high-frequency locking device is characterized by further comprising a high-frequency locking module, wherein the input end of the high-frequency locking module is connected with the output end of the single chip microcomputer module, and the output end of the high-frequency locking module is connected with the input end of the high-frequency amplification module. The specific radio transmitter circuit of this example is shown in fig. 3-9.
As shown in fig. 5, the stereo and control signal modulation module of this embodiment uses, but is not limited to, the following circuits, and specifically, the stereo and control signal modulation module of this embodiment includes a modulation chip IC9, pins 9 and 10 of the modulation chip IC9 respectively receive the left channel audio signal and the right channel audio signal output by the audio input module of the sound source, pin 2 receives the control signal output by the audio chip, pin 5 outputs the synthesized modulation signal, and pin 3 receives the power supply.
As shown in fig. 8, the high frequency locking module is suitable for a current general circuit, and this example uses but is not limited to a circuit that includes a high frequency locking chip IC5, a pin 1 of the high frequency locking chip IC5 is connected to a pin 1 of a high frequency amplification module TP5 interface, a pin 2 is grounded through a capacitor C41, a pin 3 is connected to one end of a resistor R93, a resistor R71, and a capacitor C51 through a resistor R70, the other end of the resistor R93 is connected to a high frequency amplification input terminal and a grounded capacitor C32, the other end of the resistor R71 is connected to a grounded capacitor C11, the other end of the capacitor C51 is grounded, a pin 4 and a pin 13 of the high frequency locking chip IC5 are grounded, a pin 5, a pin 9, a pin 10, a pin 12, a pin 14, and a pin 16 are suspended, pins 6-8 are connected to different pins PB of a single chip microcomputer module through a capacitor C50, a pin 11 of the high frequency locking chip IC5 is connected to a grounded capacitor C53, and a pin 15 of the high-frequency-locking chip IC5 is connected with a 5V power supply through a resistor R39 and is connected with a grounding capacitor C28.
The working principle of the wireless transmitter A is as follows:
the audio signal is amplified and automatically level-controlled from the sound source input part, then enters the audio compression module for compression, the control signal input by the control signal keyboard is processed by the singlechip module, then enters the stereo and control signal modulation module, the stereo audio signal and the control signal which are compressed are synthesized, then enters the high-frequency amplification module for frequency conversion and amplification, and finally the signal is transmitted through the transmitting antenna.
The high-frequency locking module is controlled by the singlechip module and is used for carrying out frequency locking and frequency switching on the high-frequency oscillation signal so as to change the carrier frequency of the transmission signal. The power supply module of this example provides the required supply voltage for each of the functional modules.
As shown in fig. 1, as an embodiment of the present invention, the present invention further provides a wireless receiving earphone B matched with the wireless transmitter a, which can also be other wireless receivers for audio playing, and the signal broadcasted by the wireless transmitter a of this embodiment can be received by a plurality of wireless receiving earphones B and/or wireless receivers.
The wireless receiving earphone B comprises an earphone body, a receiving antenna, a processing circuit, an audio playing structure, a channel selection structure and a power supply, wherein the receiving antenna, the processing circuit, the audio playing structure, the channel selection structure and the power supply are arranged on the earphone body, the processing circuit separates a modulation signal sent by a wireless transmitter received by the receiving antenna into an audio signal and a control signal, the audio signal plays audio through the audio playing structure, and the control signal is used for controlling the device.
As shown in fig. 10 and fig. 11, the earphone processing circuit of this embodiment includes a high-frequency amplification frequency conversion circuit B1, an intermediate-frequency demodulation circuit B3, an audio expansion and amplification circuit B8, a single-chip microcomputer B6, and a lighting display circuit B7, wherein an input terminal of the high-frequency amplification frequency conversion circuit B1 is connected to the receiving antenna B2, an output terminal of the high-frequency amplification frequency conversion circuit B1 is connected to an input terminal of the intermediate-frequency demodulation circuit B3, an output terminal of the intermediate-frequency demodulation circuit B3 is connected to an input terminal of the audio expansion and amplification circuit B8, an output terminal of the audio expansion and amplification circuit B8 is connected to an earphone speaker, and an output terminal of the single-chip microcomputer B6. Also included is a battery charging and stabilizing circuit B9 for charging the battery in the headset.
The utility model discloses still include PLL phase-locked circuit B5 and local oscillator circuit B4, PLL phase-locked circuit B5 input links to each other with singlechip B6 output, PLL phase-locked circuit B5 output links to each other with local oscillator circuit B4 input, local oscillator circuit B4 output links to each other with high frequency amplification inverter circuit B1 input. The single chip microcomputer of the embodiment also controls the local oscillation circuit through the PLL phase locking circuit so as to select the frequency of the signal to be received.
As an embodiment of the present invention, the control signal of this embodiment is a channel setting control signal, the wireless transmitter sets a channel control signal through a device capable of freely and subjectively inputting such as a keyboard, a computer, an IPAD, a mobile phone, etc., and the free control of the number of receivable channels and the number of received channels of the receiver is realized. The single chip microcomputer processes the separated channel setting control signal and sends the signal to the PLL phase locking circuit to complete channel locking, so that only a plurality of set channels can be selected through a channel selection structure such as a channel selection knob.
For example, a wireless receiver may be originally capable of receiving 20 or 50 or 60 frequency channels, and upon receiving a control signal from a wireless transmitter, only receive the frequency channel specified by the transmitter programming signal. Such as receiving only 1 channel, or receiving only 1,3,8 channels, or receiving only 2,9,16,17,20 channels of content. Compared with the method that the listening needs to be selected in 20 or more channels, after the channels are locked, only the channels need to be selected in the set several channels, the operation is more convenient, and the use is more humanized.
As another embodiment of the present invention, the control signal of this embodiment is a light control signal, the earphone body is further provided with a light emitting structure, and the light display circuit of the earphone processing circuit is connected to the light emitting module in the light emitting structure.
The working principle of the earphone circuit in the embodiment is as follows:
the wireless earphone receives the radio frequency signal in the air transmitted by the wireless transmitter through the receiving antenna, then the radio frequency signal is mixed with the local oscillator, the frequency is changed into an intermediate frequency signal, then the intermediate frequency signal is demodulated by the intermediate frequency demodulation circuit, the demodulated stereo audio signal is sent to the audio expansion and amplification circuit, and finally the left loudspeaker and the right loudspeaker of the earphone are driven to make sound.
Meanwhile, the demodulated light control signal is read by the single chip microcomputer, the light display circuit module is controlled to display the corresponding light effect according to the light control signal, the demodulated channel control signal is read by the single chip microcomputer, and the corresponding channel is controlled according to the channel control signal. The battery charging and voltage stabilizing circuit controls the charging of the lithium battery and provides proper voltage for each functional module of the earphone.
As shown in fig. 12-15, the wireless receiving earphone of this embodiment is a headphone, the earphone body of this embodiment includes a headband 7 and a headphone 8 for listening to audio, the headphone 8 is disposed at two ends of the headband 7 and connected by a connecting member 9, a light-emitting structure is disposed on an outward surface of the headphone 8, the light-emitting structure includes a base 1 disposed on the headphone 8, a transparent cover 4 disposed above the base 1, a PCB 2 having a light display circuit, and a light source 3 disposed on the PCB 2, the light source 3 includes more than 1 LED lamp bead, and the PCB 2 and the light source 3 are fixed in a cavity surrounded by the base 1 and the transparent cover 4 and powered by a power supply of the earphone body. The transparent cover 4 of this example is hat-shaped as a whole, and includes a cover 41 as a brim and a receiving groove 42 provided in the middle of the cover 41 and protruding from the cover 41 by a certain height. Preferably, the single chip microcomputer of the embodiment is also arranged on the PCB 2, and other circuit modules and power supply modules are arranged in the earphone body, so that the function of the earphone is similar to that of the existing earphone.
The size of the accommodating groove 42 corresponds to the size of the top of the base 1 and the surface of the transparent cover plate 4 matched with the top of the base, the cover body 41 on the periphery of the accommodating groove 42 extends to the periphery of the base 4, the LED lamp beads are embedded in the accommodating groove of the transparent cover plate 4, the light-emitting parts of the LED lamp beads are tightly attached to the side wall of the transparent cover plate 4, and the light-emitting direction of the LED lamp beads faces the side wall of the accommodating groove 42 and is parallel to the cover body 41 of the. The light efficiency is projected to the transparent cover plate 4 at a zero distance, so that the transparent cover plate 4 emits light brightest, and the light efficiency is utilized to the maximum extent.
The light emitting structure of the present example is also applicable to bone conduction earphones, in-ear earphones, and the like. The utility model discloses side and top surface all can be luminous, all can see all around, and warning effect is better when the night walk, and is luminous even, and the earphone is whole more pleasing to the eye, also can regard as little night-light use, and the range of application is wider.
The utility model discloses also be particularly useful for a plurality of earphones of group such as dance floor, square dance use together, for example the square dance because of the square dance generally in open air occasion, district or road side etc. after dancer wears, has both avoided disturbing residents, improves the security of wearing the person, can also establish comparatively cool light atmosphere. For example, in a conference occasion, a wearer can clearly hear conference content and control light to create a light atmosphere consistent with the conference content.
The transparent cover plate 4 of this example is fillet square, therefore, the quantity of the LED lamp pearl of this example is 4, sets up respectively in the four corners of holding tank 42, to four directions luminous to make transparent lid 4 even luminous. Of course, the transparent cover plate and the corresponding upper part of the base can be in other shapes such as a circle, an ellipse, a triangle and a polygon, and the number of the LED lamp beads can be increased or decreased according to the requirement. Preferably, in order to make the cover 41 emit light more uniformly, the back surface of the cover 41 in this embodiment is further provided with refraction grains 411, and light is refracted through the refraction grains 411, so that the overall light emission is softer and more uniform. Refraction pattern 411 in this example may be annular, radial, or other pattern.
In this embodiment, the base is provided with a control switch for switching the light-emitting structure, and in order to facilitate the operation of the control switch, the cover 41 is provided with a notch 412 at a position corresponding to the control switch.
Three studs 11 are uniformly arranged on the periphery of the base 1, screw mounting holes 43 are formed in the positions, corresponding to the studs 11, of the transparent cover plate 4, and the transparent cover plate 4 is fixed on the base 1 through screws 6 and the studs 11.
For the convenience of carrying, the connecting part 1 and the head band 7 of this example are foldable, and the other end is hinged on the two sides of the base 1.
The light-emitting structure of this example still includes the leaded light lid 5 of setting at holding tank 42 upper surface, be equipped with printing opacity district and shading area on the leaded light lid 5 printing opacity district can design for characters, pattern etc. to make the earphone whole more pleasing to the eye, the perception is better, and this example is in printing opacity district below can also be equipped with the light-emitting direction orientation the LED lamp pearl in printing opacity district makes its luminous effect better.
The light guide cover 5 of this example is the glue dripping of taking the luminous zone of LOGO, 4 tops of transparent cover plate are a plane, the gluing of the glue dripping LOGO of being convenient for, in order to make the glue dripping LOGO bonding position controllable, this example is equipped with recess 44 on the upper surface of holding tank 42, make the glue dripping LOGO tile with whole recess 44 in.
The light of transparent cover plate 4 can shine each position of glue dripping, is convenient for at the different LOGO of any place silk screen printing of glue dripping. The glue is an opaque black carrier, and the light-transmitting LOGO can be silkscreened on any part of the glue.
The utility model discloses can send the modulation signal who contains audio frequency and control signal simultaneously, realize the joint control of wireless reception earphone light and audio frequency and channel, of course, synchronous sending, transmission and the receipt of also can multiple signal, the time is synchronous completely, and the jet lag is better, and the linkage effect is particularly useful for the dance floor, and a plurality of earphone occasions together such as meeting can establish the more cool light atmosphere, and the range of application is wider.
The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the present invention are within the protection scope of the present invention.
Claims (10)
1. A wireless transmitter, characterized by: including casing, the wireless transmitter circuit of setting in the casing and the power module for the wireless transmitter power supply, be equipped with audio input interface, the transmitting antenna who links to each other with the wireless transmitter circuit respectively on the casing, wireless transmitter still includes the control signal input structure who links to each other with the wireless transmitter circuit, the wireless transmitter circuit synthesizes the sound source audio signal and the control signal who receives into modulated signal, then launches through transmitting antenna.
2. The wireless transmitter of claim 1, wherein: the control signal input structure comprises a keyboard, a computer, an IPAD and a mobile phone which are externally connected through an interface, wherein the audio input interface is externally connected with a sound source signal and equipment capable of converting sound into the sound source signal.
3. The wireless transmitter of claim 1, wherein: the wireless transmitter circuit comprises a sound source audio input module, an audio compression and amplification module, a stereo and control signal modulation module, a high-frequency amplification module, a single chip microcomputer module and a control signal input interface module, wherein the output end of the sound source audio input module is connected with the input end of the audio compression and amplification module, the output end of the audio compression and amplification module is connected with the input end of the stereo and control signal modulation module, the output end of the stereo and control signal modulation module is connected with the input end of the high-frequency amplification module, the output end of the high-frequency amplification module is connected with a transmitting antenna, the input end of the control signal input interface module is connected with a control signal input device, the output end of the control signal input interface module is connected with.
4. The wireless transmitter of claim 3, wherein: the high-frequency locking device is characterized by further comprising a high-frequency locking module, wherein the input end of the high-frequency locking module is connected with the output end of the single chip microcomputer module, and the output end of the high-frequency locking module is connected with the input end of the high-frequency amplification module.
5. The wireless transmitter of claim 4, wherein: the high-frequency locking module comprises a high-frequency locking chip IC5, a pin 1 of the high-frequency locking chip IC5 is connected with a TP5 interface of the high-frequency amplification module, a pin 2 is grounded through a capacitor C41, a pin 3 is respectively connected with one end of a resistor R93, a resistor R71 and a capacitor C51 through a resistor R70, the other end of the resistor R93 is respectively connected with a high-frequency amplification input end and a grounded capacitor C32, the other end of the resistor R71 is connected with a grounded capacitor C11, the other end of the capacitor C51 is grounded, a pin 4 and a pin 13 of the high-frequency locking chip IC5 are grounded, a pin 5, a pin 9, a pin 10, a pin 12, a pin 14 and a pin 16 are suspended, pins 6-8 are respectively connected with different PB pins of the singlechip, a pin 11 of the high-frequency locking chip IC5 is respectively connected with a grounded capacitor C53 and an oscillator of the singlechip module through a capacitor C50, a pin 15, and is connected to a ground capacitor C28.
6. The wireless transmitter of claim 3, wherein: the stereo and control signal modulation module comprises a modulation chip IC9, wherein pins 9 and 10 of the modulation chip IC9 are respectively connected with a left channel audio signal and a right channel audio signal output by the audio source audio input module, pin 2 is connected with a control signal output by the singlechip, pin 5 is used for outputting a synthesized modulation signal, and pin 3 is connected with a power supply.
7. A wireless receiving device matched with the wireless transmitter of any one of claims 1-6, wherein: the device comprises a device body, a receiving antenna, a processing circuit, an audio playing structure, a channel selection structure and a power supply, wherein the receiving antenna, the processing circuit and the audio playing structure are arranged on the device body, the processing circuit separates a modulation signal sent by a wireless transmitter received by the receiving antenna into an audio signal and a control signal, the audio signal plays music through the audio playing structure, and the control signal is used for controlling the device.
8. The wireless receiving apparatus according to claim 7, wherein: the processing circuit comprises a high-frequency amplification frequency conversion circuit, an intermediate frequency demodulation circuit, an audio expansion and amplification circuit, a single chip microcomputer, a PLL phase-locked circuit and a local oscillator circuit, wherein the input end of the high-frequency amplification frequency conversion circuit is connected with a receiving antenna, the output end of the high-frequency amplification frequency conversion circuit is connected with the input end of the intermediate frequency demodulation circuit, the output end of the intermediate frequency demodulation circuit is connected with the input end of the audio expansion and amplification circuit, the output end of the audio expansion and amplification circuit is connected with an earphone loudspeaker, the output end of the single chip microcomputer is connected with the input end of the intermediate frequency demodulation circuit and the input end of the PLL phase-locked circuit respectively, the output end of the PLL.
9. The wireless receiving apparatus according to claim 8, wherein: the device body is further provided with a light-emitting structure, the processing circuit further comprises a lamplight display circuit connected with a light-emitting module in the light-emitting structure, the input end of the lamplight display circuit is connected with the output end of the single chip microcomputer, and the control signal comprises a light-emitting control signal and/or a channel control signal.
10. The wireless receiving apparatus according to claim 9, wherein: wireless receiving arrangement is wireless receiving earphone, wireless receiving earphone includes the bandeau and sets up the audio playback structure that is used for playing the audio frequency at bandeau both ends, and earphone loudspeaker set up in the audio playback structure, audio playback structure one side outwards is equipped with light-emitting structure, light-emitting structure is including setting up the base on sound production module and setting up the clear cover above the base, still including the PCB board that is equipped with light display circuit and the light source of setting on the PCB board, PCB board and light source are fixed in base and clear cover enclose synthetic cavity, the clear cover includes the lid and sets up at lid middle part and the holding tank of protrusion lid take the altitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921321758.XU CN210225392U (en) | 2019-08-14 | 2019-08-14 | Wireless transmitter and wireless receiving device matched with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921321758.XU CN210225392U (en) | 2019-08-14 | 2019-08-14 | Wireless transmitter and wireless receiving device matched with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210225392U true CN210225392U (en) | 2020-03-31 |
Family
ID=69918555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921321758.XU Active CN210225392U (en) | 2019-08-14 | 2019-08-14 | Wireless transmitter and wireless receiving device matched with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210225392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116820254A (en) * | 2023-07-03 | 2023-09-29 | 深圳市高昂电子有限公司 | Keyboard control device applied to earphone with interactive display screen |
-
2019
- 2019-08-14 CN CN201921321758.XU patent/CN210225392U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116820254A (en) * | 2023-07-03 | 2023-09-29 | 深圳市高昂电子有限公司 | Keyboard control device applied to earphone with interactive display screen |
| CN116820254B (en) * | 2023-07-03 | 2024-03-08 | 深圳市高昂电子有限公司 | Keyboard control device applied to earphone with interactive display screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20030100331A1 (en) | Personal, self-programming, short-range transceiver system | |
| US20050260953A1 (en) | Wireless aviation headset | |
| US20140083278A1 (en) | Direct vocal and instrument monitor | |
| US20090262967A1 (en) | Wearable speaker vest/jacket | |
| CN210225392U (en) | Wireless transmitter and wireless receiving device matched with same | |
| JP2770389B2 (en) | Wireless headphone system | |
| CN202395970U (en) | Intelligent remote-control wireless light and sound device | |
| KR20100001534A (en) | Multi-functional spectacles for leisure use | |
| CN206117978U (en) | Portable sound box | |
| CN205227188U (en) | Intelligence music rhythm flashing lamp | |
| CN201097667Y (en) | Cap with loudspeaker | |
| CN220935196U (en) | Display system based on broadcast audio frequency is controllable | |
| US20080192951A1 (en) | Spectator broadcast system with an ear mounted receiver | |
| CN209949382U (en) | Earphone with luminous structure | |
| CN209448872U (en) | Mike's air horn integrated equipment | |
| CN109218907A (en) | Speaker | |
| CN210958685U (en) | Take bluetooth speaker of light | |
| CN207990452U (en) | A kind of barn lantern bluetooth-capable | |
| CN219842805U (en) | Multifunctional vehicle-mounted wireless K song device | |
| CN209448737U (en) | A kind of portable communications wireless intercom device | |
| CN203261319U (en) | Vehicle-mounted frequency modulation (FM) transmitter | |
| CN208462058U (en) | Bluetooth transmitters | |
| CN213462241U (en) | Multifunctional headset with display pixel interface forming pattern | |
| CN209234019U (en) | A kind of Baffle Box of Bluetooth earphone | |
| JPH09214430A (en) | Infrared ray transmitter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |