CN203812011U - an installation where two people share music through physical contact - Google Patents

Abstract

The utility model discloses a device for two people to share music through body contact, which combines a radio modulation method to transmit a switch control signal through a human body as a conductor to control the on and off of audio frequency in an earphone/sound box. The utility model discloses a two sets of broadcasting devices, the music can be broadcast in real time to first broadcasting device A1, and first broadcasting device A1 is initiative, and second broadcasting device A2 is driven, through the health contact like hand in hand, or closely be close to or contact first broadcasting device A1 and second broadcasting device A2 each other to broadcast the music. The utility model provides a method of two people sharing music has drawn close the distance between the people, low distortion when having remain the sound source transmission to reach the effect that the audio frequency control switch can be opened in the physical contact and reach the music sharing.

Description

an installation where two people share music through physical contact

technical field

The utility model relates to a music device, in particular to a device for sharing music with wired or wireless earphones or sound boxes.

Background technique

The radio technologies currently used in wireless headsets include: Bluetooth, wifi, Zegbee, NFC, FM, GFSK, infrared, magnetic lines, and other wireless technologies. There are transmitters and receivers. The transmitting end is connected to the sound source, and after processing and modulation, it is transmitted into the air. After receiving it, one or more receiving ends demodulate and process the sound source to restore the sound source, and broadcast it through the speaker. The user receives the transmitter mode: ①, one transmitter to one receiver; or ②, broadcast reception, that is, one transmitter to multiple receivers.

The problem is: when A and B listen to the same music/song together, they generally use the wireless broadcast mode, that is, one transmitter can be equipped with multiple receivers, but when they listen to the music/song together, they want to simultaneously To share the same music/song of the other party, you need to exchange the other party's player or earphone with the other party, or connect an extra plug in parallel with the other party's player, so that the other party can hear the music/song. Very inconvenient. Research ① found that a group of transmitters is added to the receiver, and a new file is set as the master (MASTER)/slave (SLAVE) file for users to set the sharing mode. Example: Party A is set to master (MASTER), and Party B is set to slave (SLAVE) mode. The receiving end of Party A’s earphone receives the music/song from the player, and transmits it to Party B’s receiving end through Party A’s transmitting end to play the music/song. music/song. Research ② found that: the player transmits music to the master Party A (MASTER), and then Party A modulates the sound source and transmits the modulated signal through the human body, and through physical contact with Party B, such as holding hands, the signal is transmitted from Party A through the human body to Party B's earphones After demodulation and processing by the internal receiving end, the audio source is broadcast from the speaker. However, due to the noise and noise generated during the transmission from the human body, the noise and noise are not easy to solve. To solve this problem. From Party A to Party B through the human body, only the control music switch signal and the pairing code signal are transmitted. Music signals are not passed on. This solves the problem of noise during transfer. And music transmission is still transmitted from the air by radio.

Utility model content

Based on this, it is necessary to address the existing technical problems, provide a device for two people to share music through physical contact and a device for two people to share music through close proximity or contact, and propose an earphone or earphone for two people to share music Speakers, combined with radio modulation methods and through the human body as a conductor (or close proximity or contact) to transmit modulation switch signals, control the audio on and off in the earphones or speakers.

In order to solve the problems of the prior art, the utility model adopts the following technical solutions:

A device for two people to share music through physical contact, including a first broadcast device A1 and a second broadcast device A2, the first broadcast device A1 and the second broadcast device A2 have the same circuit, and the first broadcast device A1 contains an active "M" Mode or select the first mode control switch 109 of the slave "S" mode (the system default is "M"), the first mode control switch 109 is electrically connected to the control port of the first wireless transceiver module 100 (Wireless Transceiver Module) , the first mute control circuit in the first radio transceiver circuit module 100 is connected to the first mute control circuit 101 of the first audio power amplifier 103, the output end of the first radio transceiver circuit module 100 is connected to the first audio power amplifier 103 input end, the first audio frequency The output end of the power amplifier 103 is connected to the first wired input circuit 102, and the output end of the first wired input circuit 102 is connected to the first broadcast unit 104;

The second broadcasting device A2 contains a second mode control switch 209 that provides an active "M" mode or selects a slave "S" mode. The second mode control switch 209 is connected to the control port of the second radio transceiver module 200, and the second radio transceiver The second mute control circuit in the line module 200 is connected to the second mute control circuit 201 of the second audio power amplifier 203, the output end of the second radio transceiver line module 200 is connected to the input end of the second audio power amplifier 203, and the output end of the second audio power amplifier 203 is connected to The second wired input circuit 202 , the output end of the second wired input circuit 202 is connected to the second broadcasting unit 204 .

The port of the first microcomputer control unit 110 is connected to the first wireless transceiver module 100 (Wireless Transceiver Module), the input of the first mute control circuit 101 is connected to the first radio transceiver module 100, and the output of the first mute control circuit 101 is connected to the first audio The input terminal of the power amplifier 103, the output terminal of the first audio power amplifier 103 is connected to the input terminal of the first wired input circuit 102 (Line in), the output terminal of the first wired input circuit 102 (Line in) is connected to the first broadcast unit 104 (speaker), the first The port of the microcomputer control unit 110 (MCU) is connected to the first transmitting modulator 112 and the first receiving demodulator 114 , and the output terminals of the first transmitting modulator 112 and the first receiving demodulator 114 are connected to the first coupling antenna 111 .

A device for two people to share music through close proximity or contact. The device for sharing music includes a first broadcast device A1 and a second broadcast device A2. The first broadcast device A1 and the second broadcast device A2 have the same circuit. The first broadcast device A1 contains a first mode control switch 109 that provides active "M" mode or selects a slave "S" mode. The first mode control switch 109 is electrically connected to the control port of the first radio transceiver circuit module 100. The first radio transceiver circuit module The first mute control circuit in 100 is connected to the first mute control circuit 101 of the first audio power amplifier 103, the output end of the first radio transceiver circuit module 100 is connected to the input end of the first audio power amplifier 103, and the output end of the first audio power amplifier 103 is connected to the first A wired input circuit 102, the output end of the first wired input circuit 102 is connected to the first broadcast unit 104;

The second broadcasting device A2 has a second mode control switch 209 (the system default is "S") that provides the active "M" mode or selects the slave "S" mode. The second mode control switch 209 is electrically connected to the second radio transceiver The control port of the line module 200 (Wireless Transceiver Module), the second mute control circuit in the second radio transceiver circuit module 200 is connected to the second mute control circuit 201 of the second audio power amplifier 203, and the output terminal of the second radio transceiver circuit module 200 is connected to The input end of the second audio power amplifier 203 , the output end of the second audio power amplifier 203 are connected to the second wired input circuit 202 , and the output end of the second wired input circuit 202 is connected to the second broadcast unit 204 .

The port of the second microcomputer control unit 210 (MCU) is connected to the second wireless transceiver module 200 (Wireless Transceiver Module), the input end of the second mute control circuit 201 is connected to the second radio transceiver module 200, and the output end of the second mute control circuit 201 is connected to The input end of the second audio power amplifier 203, the output end of the second audio power amplifier 203 is connected to the input end of the second wired input circuit 202 (LINE IN), and the output end of the second wired input circuit 202 (Line in) is connected to the second broadcast unit 204 (speaker) , the port of the second microcomputer control unit 210 (MCU) is connected to the second transmitting modulator 212 and the second receiving demodulator 214, and the output terminals of the second transmitting modulator 212 and the second receiving demodulator 214 are connected to the second coupling antenna 211.

In some embodiments, the first broadcasting device A1 includes a first battery 113, and the first battery 113 is electrically connected to the first microcomputer control unit 110, the first radio transceiver circuit module 100, the first coupling antenna 111, the first audio Power amplifier 103, first wired input circuit 102;

The second broadcasting device A2 includes a second battery 213 connected to the second microcomputer control unit 210 , the second radio transceiver circuit module 200 , the second coupling antenna 211 , the second audio power amplifier 203 , and the second wired input circuit 202 .

In some embodiments, the ports of the first radio transceiver module 100 are respectively connected to the first mode control switch 109, the first power switch/pairing 108 (K1), the first volume adjustment button 106, and the first USB charging port 107, The port of the first radio transceiver circuit module 100 is also connected to the first display lamp 105, the first microphone 115, the first audio power amplifier 103, and the first mute control circuit 101;

The port of the second radio transceiver circuit module 200 is respectively connected to the second mode control switch 209, the second power switch/pairing 208 (K1), the second volume adjustment button 206, the second USB charging port 207, and the port of the second radio transceiver circuit module 200 The second display lamp 205, the second microphone 215, the second audio power amplifier 203, and the second mute control circuit 201 are also connected.

In some embodiments, the first radio transceiver module 100 is connected to the first antenna 131 , and the second radio transceiver module 200 is connected to the second antenna 231 .

In some embodiments, when the first mode control switch 109 is set to active "M" (Master), the first wireless transceiver module 100 (Wireless Transceiver Module) controls the mute port to output a level to control the first audio power amplifier 103 The first mute control circuit 101 of (Power AMP) makes the first audio power amplifier 103 a direct mode (BY PASS), so that the first audio power amplifier 103 pushes the first sound unit 104 (speaker) to emit music;

At the same time, when the second mode control switch 209 is set to slave "S" (Slave), the second radio transceiver module 200 (Wireless Transceiver Module) controls the mute port to output a level to control the second audio power amplifier 203 (Power AMP). The second mute control circuit 201 enables the second audio power amplifier 203 (Power AMP) to be in mute mode (Mute).

In some embodiments, the first microcomputer control unit 110 (MCU) generates a handle to control the switch of the music signal, modulates it through the first transmitting modulator 112 and transmits it to the first coupling antenna 111, and is transmitted by the first coupling antenna 111 Send the signal to the first radio transceiver circuit module 100;

The control signal (control signal of the first broadcasting device A1) transmitted via the first coupling antenna 111 is coupled to the first human body surface as a conductor to transmit the signal, and the second human body surface is used as a conductor to receive the signal, and then transmitted to the second coupling antenna 212 ( The second broadcasting device A2 receives the signal);

Through close proximity or contact between the first broadcasting device A1 (earphone or speaker) and the second broadcasting device A2 (earphone or speaker), the control signal emitted by the first coupling antenna 111 is transmitted to the second speaker of the second broadcasting device A2. Antenna 212 is coupled.

In some embodiments, the control signal generated by the first microcomputer control unit 110 (MCU) is demodulated by the second receiving demodulator 214, restored to a digital control signal, and transmitted to the second microcomputer control unit 210 (MCU ) for comparison, and after the signal is correct, notify the second radio transceiver circuit module 200 (Wireless Transceiver Module), and the second radio transceiver circuit module 200 (Wireless Transceiver Module) generates a level to control the second mute control circuit 201 to be in a conducting state ( Bypass), so that the music signal can enter the second audio power amplifier 203 to push the second broadcast unit 204 (speaker) to emit music sound.

In some embodiments, when the second broadcasting device A2 (earphone or speaker) is set to the active "M" mode by the second mode control switch 209, the first broadcasting device A1 is selected to be in the slave "S" mode. At this time, the second broadcasting device A2 will pair code with the first broadcasting device A1, so that the first wireless transceiver module 100 (Wireless Transceiver Module) of the first broadcasting device A1 can receive the second wireless transceiver module 200 of the second broadcasting device A2 (Wireless Transceiver Module) music signal, realize the reverse control of the first broadcast device A1 by the second broadcast device A2, so that the first broadcast device A1 and the second broadcast device A2 achieve an interactive effect.

In some embodiments, the frequency of the radio wave modulated by the switch control signal of the first coupling antenna 111 (Coupling Antenna) and the second coupling antenna 211 is between 1 MHz and 2450 MHz.

In some embodiments, the first battery 113 (Vcc) is connected to the first microcomputer control unit 110 (MCU), the first wireless transceiver circuit module 100 (Wireless Transceiver Module), the first transmit modulator 112 (Modulator), the first A receiving demodulator 114 (Demodulator), the first audio power amplifier 103, the port of the first microcomputer control unit 110 is connected to the first radio transceiver circuit module 100, the first transmitting modulator 112, the first receiving demodulator 114, the first radio The port of the transceiver line module 100 is connected to the first power switch/pairing 108 (K1), the first volume adjustment button 106, the first display light 105 (LED), the first audio power amplifier 103, the first mute control circuit 101, and the first USB charging port 107, first microphone 115 (mic) port;

The second battery 213 (Vcc) is connected to the second microcomputer control unit 210 (MCU), the second radio transceiver circuit module 200 (Wireless Transceiver Module), the second transmitting modulator 212 (Modulator), the second receiving demodulator 214, the second Two audio power amplifiers 203 (Power AMP), the second microcomputer control unit 210 port is connected to the second radio transceiver circuit module 200, the second transmit modulator 212, and the second receiver demodulator 214, and the second radio transceiver circuit module 200 port is connected to the second radio transceiver circuit module 200 Two power switch/pairing 208 (K1), the second volume adjustment button 206, the second display light 205 (LED), the second audio power amplifier 203, the second mute control circuit 201, the second USB charging port 207, and the second microphone 215 (mic) port.

In some embodiments, the first radio transceiver module 100 is connected to the first antenna 131 , and the second radio transceiver module 200 is connected to the second antenna 231 .

In some embodiments, the mute electronic switch in the first mute control circuit 101 is preset to a bypass mode (BY PASS), and the electronic switch in the second mute control circuit 201 is set to a mute branch (open circuit).

In some embodiments, the mute electronic switch in the first mute control circuit 101 is preset as a mute branch (open circuit), and the electronic switch in the second mute control circuit 201 is set to a bypass mode (BY PASS).

The utility model discloses a device for two people to share music through physical contact, which is combined with a radio modulation method to transmit a switch control signal through the human body as a conductor to control the on and off of the audio in the earphone/sound box. The utility model includes two sets of broadcasting devices: a music player (such as a mobile phone) is connected to the first broadcasting device A1 by radio (such as Bluetooth), and the first broadcasting device A1 can play music in real time. The first broadcasting device A1 is the master (MASTER) and the second broadcasting device A2 is the slave (SLAVE). The A1 and A2 broadcasting devices contain a wireless transceiver circuit module, and the A1 music signal passes through the wireless transceiver circuit module (Wireless) of the first broadcasting device. Transceiver Module) is modulated and transmitted from the air to the wireless transceiver module (Wireless TransceiverModule) of the second broadcasting device through the antenna, and then transmitted to the second audio power amplifier (Power AMP) after demodulation. At this time, the second power amplifier is in a mute state. The first radio transceiver line module is connected to the first microcomputer control unit, and the first microcomputer control unit generates a mute on (or off) control signal, which is connected to the first wireless transmission line transmission modulator (Modulator) through the port of the microcomputer control unit, and through physical contact Such as holding hands or putting the first broadcasting device A1 and the second broadcasting device A2 close to or touching each other, the on or off control signal of the audio power amplifier mute is transmitted to the wireless receiving circuit receiving demodulator of the second broadcasting device A2 ( Demodulator), connected to the mute control circuit of the second wireless transceiver module (WirelessTransceiver Module) through the port of the second microcomputer control unit, and controls the mute control circuit of the second audio power amplifier (Power AMP) circuit, so that the mute control is a direct mode, and the music Connect the speaker of the broadcasting unit through the output of the audio power amplifier (Power AMP) circuit, so as to play music. The utility model solves the method for two people to share music, shortens the distance between people, retains low distortion when the sound source is transmitted, and the audio control switch can be turned on by physical contact to achieve the effect of music sharing.

The utility model solves the problem that A and B share music. Assume that A (MASTER master) and B (SLAVE slave) each wear a wireless headset (the first broadcasting device A1 and the second broadcasting device A2) for sharing music, and A's wireless headset is connected to a mobile phone or a music player. Through two people holding hands or shaking hands or approaching or contacting at close range, the mute electronic switch signal of A is transmitted to the radio headset of B, and the mute switch of the audio power amplifier in the headset of B is turned on, so that B can hear the music song of A, so that two people can hear the music/song at the same time. Solve the problem that two people cannot share the same music/song at the same time. Likewise, A and B's radio headsets. You can change B to the active MASTER, and A to the slave SLAVE relationship. Also achieve the above-mentioned effect. Existing methods cannot achieve the effect of real-time control of Party B's music switch. This method can facilitate music sharing through physical contact or other physical contact such as close proximity or contact. The utility model shortens the distance between people, retains the low distortion when the sound source is transmitted, and the audio control switch can be turned on by physical contact to achieve the effect of music sharing.

Description of drawings

Fig. 1 is the schematic diagram of sharing the music earphone through physical contact of the utility model embodiment;

Fig. 2 is the schematic diagram of sharing the music speaker through physical contact in the embodiment of the present invention;

Fig. 3 is a schematic diagram of close proximity or contact with a shared music earphone according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of close proximity or contact with a shared music speaker according to an embodiment of the present invention;

Fig. 5 is the schematic diagram of the utility model embodiment;

Fig. 6 is the circuit diagram of the audio part of the utility model embodiment;

Fig. 7 is the circuit diagram of the carrier part of the utility model embodiment;

Fig. 8 is a block diagram of the circuit principle of the embodiment of the utility model.

The reference signs are explained as follows:

The first broadcasting device A1, the second broadcasting device A2, the first radio transceiver circuit module 100, the first mute control circuit 101, the first wired input circuit 102, the first audio power amplifier 103, the first broadcasting unit 104, and the first display light 105, the first volume adjustment button 106, the first power switch/pairing 108, the first mode control switch 109, the first microcomputer control unit 110, the first transmitting modulator 112, the first receiving demodulator 114, the first coupling antenna 111, the first battery 113, the first antenna 131; the second radio transceiver circuit module 200, the second mute control circuit 201, the second wired input circuit 202, the second audio power amplifier 203, the second broadcast unit 204, and the second display light 205, the second volume adjustment button 206, the second power switch/pairing 208, the second mode control switch 209, the second microcomputer control unit 210, the second transmitting modulator 212, the second receiving demodulator 214, and the second coupling antenna 211, the second battery 213, and the second antenna 231.

Detailed ways

In order to further understand the features, technical means, and specific objectives and functions of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

At first, accompanying drawing 5 is the schematic diagram of a specific embodiment, is divided into the first broadcasting device A1 (earphone or sound box) of two people of A and B, the second broadcasting device A2 (earphone or sound box), the first broadcasting device A1 and The principle diagram of the second broadcasting device A2 is the same, the music player is connected to the first broadcasting device A1 (headphone or speaker) through Bluetooth wireless transmission or wired connection, and the first broadcasting device A1 (headphone or speaker) equipped with A has the first radio transceiver line Module 100 (Wireless Transceiver Module), the first wireless transceiver circuit module 100 sends out modulated radio waves, which are transmitted to the second wireless transceiver circuit module 200 (Wireless Transceiver Module) in the second broadcasting device A2 (earphone or speaker) of the second equipment to receive , the second radio transceiver circuit module demodulates at the same time, restores the music signal, because the second mute control circuit 201 is set at the second broadcasting device A2, the music is muted until the first broadcasting device A1 The microcomputer control unit 110 (MCU) generates a mute control signal, which enters the "TXDATA" terminal of the first transmitting modulator 112 (Modulator). In this case, the modulated and high-frequency oscillators Q4, X2, and Q2 generate a 2.3MHZ carrier frequency signal. After being amplified by Q5 and Q6, it is transmitted by the first coupling antenna 111 (Coupling antenna) through U5SPDTSWITCH. The 2.3MHZ carrier signal is directly transmitted to the human body, and the signal is relatively weak. After the signal reaches the human body, the human body is a conductor antenna. The MHZ carrier signal crawls around along the surface of a human body, effectively receives the signal through any position on the surface of the second human body, and the signal is coupled into the second coupling antenna 211 at the receiving end of the second broadcasting device A2 of the second person to receive the signal. The contact can achieve the effect of coupling antenna directly from A1 to A2. The signal enters the Q1 mixing amplifier of the second receiving demodulator 214 (Demodulator) through U5SPDT SWITCH, and returns to the original output control signal RX_DATA after being demodulated by IC1 and enters the second microcomputer control unit 210 (MCU) MCU U3, and U3 checks the signal number After being correct, the output control level is notified to the second radio transceiver circuit module 200 via BT_RXD, and a level is output by the second radio transceiver circuit module 200 to open the SHDN pin of the second mute control circuit 201 (silence control system). The audio power amplifier 203 (Power AMP) drives the second broadcast unit 204 (speaker) to broadcast.

The device for sharing music includes the first broadcasting device A1, the second broadcasting device A2 (headphones or speakers), the first broadcasting device A1 (headphones or speakers) contains active "M" (MASTER) mode or slave "S" (SLAVE ) mode of the first mode control switch 109 (the system default is "M"), the first mode control switch 109 is electrically connected to the first radio transceiver circuit module 100, and the port of the first microcomputer control unit 110 (MCU) is connected to the first radio The transceiver circuit module 100, the first mute control circuit 101 input terminal is connected to the first radio transceiver circuit module 100, the output terminal of the first mute control circuit 101 is connected to the input terminal of the first audio power amplifier 103, and the output terminal of the first audio power amplifier 103 is connected to the first wired The input terminal of the input circuit 102 (Line in), the output terminal of the first wired input circuit 102 (Line in) is connected to the first broadcast unit 104 (speaker), and the port of the first microcomputer control unit 110 (MCU) is connected to the first transmitting modulator 112 and The output terminals of the first receiving demodulator 114 , the first transmitting modulator 112 and the first receiving demodulator 114 are connected to the first coupling antenna 111 .

The second broadcasting device A2 (earphone or speaker) contains a second mode control switch 209 (MODE) that provides an active "M" (MASTER) mode or a slave "S" (SLAVE) mode, and the default selection mode is set to "S", The second mode control switch 209 is electrically connected to the second wireless transceiver module 200 (Wireless Transceiver Module), the port of the second microcomputer control unit 210 (MCU) is connected to the second wireless transceiver module 200, and the input terminal of the second mute control circuit 201 is connected to The second radio transceiver circuit module 200, the output end of the second mute control circuit 201 is connected to the input end of the second audio amplifier 203, the output end of the second audio amplifier 203 is connected to the input end of the second wired input circuit 202 (Line in), and the second wired input The output end of the circuit 202 (Line in) is connected to the second broadcasting unit 204 (speaker), the port of the second microcomputer control unit 210 (MCU) is connected to the second transmitting modulator 212 and the second receiving demodulator 214, and the second transmitting modulator 214 The output terminals of the device 212 and the second receiving demodulator 214 are connected to the second coupling antenna 211 .

In one embodiment, the first battery 113 (Vcc) is connected to the first microcomputer control unit 110 (MCU), the first radio transceiver circuit module 100, the first transmitting modulator 112 (Modulator), and the first receiving demodulator 114 ( Demodulator), the first audio power amplifier 103 (Power AMP), the first microcomputer control unit 110 (MCU) port is connected to the first radio transceiver circuit module 100, the first transmitting modulator 112, the first receiving demodulator 114, the first radio The port of the transceiver line module 100 is connected to the first power switch/pairing 108 (K1), the first volume adjustment button 106, the first display light 105 (LED), the first audio power amplifier 103, the first mute control circuit 101, and the first USB charging Port 107, first microphone 115 (mic) port.

In one embodiment, the second battery 213 (Vcc) is connected to the second microcomputer control unit 210 (MCU), the second radio transceiver circuit module 200, the second transmitting modulator 212 (Modulator), the second receiving demodulator 214, The second audio power amplifier 203 (Power AMP), the second microcomputer control unit 210 (MCU) port is connected to the second radio transceiver circuit module 200, the second transmit modulator 212, the second receiver demodulator 214, the second radio transceiver circuit module Port 200 is connected to the second power switch/pairing 208 (K1), the second volume adjustment button 206, the second display light 205 (LED), the second audio power amplifier 203, the second mute control circuit 201, the second USB charging port 207, Second microphone 215 (mic) port.

The first wireless transceiver module 100 (Wireless Transceiver Module) is connected to the first antenna 131, and the second wireless transceiver module 200 (Wireless Transceiver Module) is connected to the second antenna 231.

In one embodiment, the electronic switch in the first mute control circuit 101 is preset to a mute pass-through mode (BY PASS), and the electronic switch in the second mute control circuit 201 is set to a mute branch (open circuit).

In one embodiment, a device for two people to share music through physical contact, see Figure 8 for sharing music, including a first broadcasting device A1 (earphones or speakers), a second broadcasting device A2 (earphones or speakers), The first broadcasting device A1 has the same circuit as the second broadcasting device A2. The first broadcasting device A1 contains a first mode control switch 109 that provides an active "M" (MASTER) mode or selects a slave "S" (SLAVE) mode. The mode control switch 109 (MODE) is electrically connected to the control port of the first radio transceiver circuit module 100, and the first mute control circuit in the first radio transceiver circuit module 100 is connected to the first mute control circuit 101 of the first audio power amplifier 103. The output end of a radio transceiver circuit module 100 is connected to the input end of the first audio power amplifier 103, the output end of the first audio power amplifier 103 is connected to the first wired input circuit 102 (Line in), and the output end of the first wired input circuit 102 is connected to the first broadcast unit 104 (trumpet).

The second broadcasting device A2 (headphone or speaker) contains a second mode control switch 209 that provides an active "M" (MASTER) mode or selects a slave "S" (SLAVE) mode, and the second mode control switch 209 is connected to the second radio transceiver The control port of the circuit module 200, the second mute control circuit in the second radio transceiver circuit module 200 is connected to the second mute control circuit 201 of the second audio power amplifier 203, and the output end of the second radio transceiver circuit module 200 is connected to the second audio power amplifier 203 The input end, the output end of the second audio power amplifier 203 is connected to the second wired input circuit 202 (Line in), and the output end of the second wired input circuit 202 is connected to the second broadcasting unit 204 (speaker).

In one embodiment, two devices for sharing music through close proximity or contact, the device for sharing music includes the first broadcasting device A1 (earphone or speaker), the second broadcasting device A2 (earphone or speaker), the first The broadcasting device A1 has the same circuit as the second broadcasting device A2. The first broadcasting device A1 contains a first mode control switch 109 that provides an active "M" (MASTER) mode or selects a slave "S" (SLAVE) mode. The first mode controls The switch 109 is electrically connected to the control port of the first wireless transceiver module 100, the first mute control circuit in the first wireless transceiver module 100 (Wireless TransceiverModule) is connected to the first mute control circuit 101 of the first audio power amplifier 103, the first The output end of the radio transceiver circuit module 100 is connected to the input end of the first audio power amplifier 103, the output end of the first audio power amplifier 103 is connected to the first wired input circuit 102 (Line in), and the output end of the first wired input circuit 102 is connected to the first broadcast unit 104 ( trumpet).

The second broadcasting device A2 (headphone or speaker) contains a second mode control switch 209 that provides an active "M" (MASTER) mode or selects a slave "S" (SLAVE) mode, and the second mode control switch 209 is connected to the second radio transceiver The control port of the circuit module 200, the second mute control circuit in the second wireless transceiver circuit module 200 (Wireless Transceiver Module) is connected to the second mute control circuit 201 of the second audio power amplifier 203, and the output terminal of the second radio transceiver circuit module 200 is connected to The input end of the second audio power amplifier 203, the output end of the second audio power amplifier 203 is connected to the second wired input circuit 202 (Line in), and the output end of the second wired input circuit 202 (Line in) is connected to the second broadcast unit 204 (speaker).

In one embodiment, the port of the first microcomputer control unit 110 (MCU) is connected to the first radio transceiver circuit module 100, and the port of the first microcomputer control unit 110 is connected to the first transmitting modulator 112 (Modulator) and the first receiving demodulator 114 (Demodulator), the output terminals of the first transmitting modulator 112 and the first receiving demodulator 114 are connected to the first coupling antenna 111 (Coupling Antenna); the port of the second microcomputer control unit 210 (MCU) is connected to the second radio transceiver circuit module 200 , the port of the second microcomputer control unit 210 is connected to the second transmitting modulator 212 (Modulator and connected to the second receiving demodulator 214 (Demodulator), the second transmitting modulator 212 and the second receiving demodulator 214 output end are connected to the second coupling Antenna 211 (Coupling Antenna).

In one embodiment, the first battery 113 (Vcc) is connected to the first microcomputer control unit 110 (MCU), the first radio transceiver circuit module 100, the first coupling antenna 111, the first audio power amplifier 103 (Power AMP), the first Wired input circuit 102 (Line in); the second battery 213 (Vcc) is connected to the second microcomputer control unit 210 (MCU), the second radio transceiver circuit module 200, the second coupling antenna 211, and the second audio power amplifier 203 (Power AMP) . The second wired input circuit 202 (Linein).

In one embodiment, the ports of the first radio transceiver module 100 are respectively connected to the first mode control switch 109, the first power switch/pairing 108 (K1), the first volume adjustment button 106, the first USB charging port 107, the first Display light 105, first microphone 115 (mic), first audio power amplifier 103, first mute control circuit 101; ports of second radio transceiver circuit module 200 are respectively connected to second mode control switch 209, second power switch/pairing 208 ( K1), the second volume adjustment button 206 , the second USB charging port 207 , the second display light 205 , the second microphone 215 (mic), the second audio power amplifier 203 , and the second mute control circuit 201 .

In one embodiment, when the first mode control switch 109 is set to active "M" (Master), the first radio transceiver circuit module 100 controls the mute port to output a level to control the first audio power amplifier 103 (Power AMP). The mute control circuit 101 makes the first audio power amplifier 103 in BY PASS mode, so that the first audio power amplifier 103 pushes the first broadcast unit 104 (speaker) to emit music. At the same time, the second mode control switch 209 is set to slave "S" (Slave), the second radio transceiver circuit module 200 controls the mute port to output a level to control the second mute control circuit 201 of the second audio power amplifier 203 (PowerAMP) , so that the second audio power amplifier 203 (Power AMP) is in mute mode (Mute).

The handle for controlling the music signal switch is generated by the first microcomputer control unit 110 (MCU), modulated by the first transmitting modulator 112 and transmitted to the first coupling antenna 111, and the first coupling antenna 111 transmits the signal. The control signal transmitted through the first coupling antenna 111 is coupled to the first human body surface 116 as a conductor to transmit the signal. The signal is received via the first human body as a conductor, and transmitted to the second coupling antenna 212 . The control signal emitted by the first coupling antenna 111 is transmitted to the second coupling antenna 212 of the second broadcasting device A2 through close proximity or contact between the first broadcasting device A1 (earphone or speaker) and the second earphone or speaker. After being demodulated by the second receiving demodulator 214, it is restored to a digital control signal, and connected to the second microcomputer control unit 210 (MCU) for comparison. After the signal is correct, the second radio transceiver circuit module 200 is notified to generate A level controls the second mute control circuit 201 to be in a conduction state (By pass). The music signal can enter the second audio power amplifier 203 to push the second broadcast unit 204 (speaker) to emit music sound.

In one embodiment, when the second broadcasting device A2 (earphone or speaker) is set to the active "M" (Master) by the second mode control switch 209, the first broadcasting device A1 is set to the slave "S" (SLAVE ) mode, at this time, it will be paired with the first broadcasting device A1, so that the first radio transceiver circuit module 100 of the first broadcasting device A1 can receive the music signal sent by the second radio transceiver circuit module 200 of the second broadcasting device A2.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (7)

1. a people shares the device of music by Body contact, comprise: the first public address system A1 and the second public address system A2, described the first public address system A1 is identical with the second public address system A2 circuit, it is characterized in that, described the first public address system A1 contains the first mode gauge tap (109) that active " M " pattern is provided or selects driven " S " pattern, described first mode gauge tap (109) is electrically connected the control port of the first transceiving line module (100), the first muting control circuit in described the first transceiving line module (100) connects first muting control circuit (101) of the first audio frequency power amplifier (103), described the first transceiving line module (100) output terminal connects the first audio frequency power amplifier (103) input end, described the first audio frequency power amplifier (103) output terminal connects first wired input circuit (102), described first wired input circuit (102) output terminal connects the first broadcasting unit (104), described the first transceiving line module (100) port connects the first microcomputer control unit (110),

Described the second public address system A2 contains the second mode control switch (209) that active " M " pattern is provided or selects driven " S " pattern, described the second mode control switch (209) connects the control port of the second transceiving line module (200), the second muting control circuit in described the second transceiving line module (200) connects second muting control circuit (201) of the second audio frequency power amplifier (203), described the second transceiving line module (200) output terminal connects the second audio frequency power amplifier (203) input end, described the second audio frequency power amplifier (203) output terminal connects second wired input circuit (202), described second wired input circuit (202) output terminal connects the second broadcasting unit (204), described the second transceiving line module (200) port connects the second microcomputer control unit (210).

2. a people is by closely coming close to or in contact with the device of sharing music, the device of described shared music comprises: the first public address system A1 and the second public address system A2, the first public address system A1 is identical with the second public address system A2 circuit, it is characterized in that, described the first public address system A1 contains the first mode gauge tap (109) that active " M " pattern is provided or selects driven " S " pattern, described first mode gauge tap (109) is electrically connected the control port of the first transceiving line module (100), the first muting control circuit in described the first transceiving line module (100) connects first muting control circuit (101) of the first audio frequency power amplifier (103), described the first transceiving line module (100) output terminal connects the first audio frequency power amplifier (103) input end, described the first audio frequency power amplifier (103) output terminal connects first wired input circuit (102), described first wired input circuit (102) output terminal connects the first broadcasting unit (104), described the first transceiving line module (100) port connects the first microcomputer control unit (110),

Described the second public address system A2 contains the second mode control switch (209) that active " M " pattern is provided or selects driven " S " pattern, described the second mode control switch (209) connects the control port of the second transceiving line module (200), the second muting control circuit in described the second transceiving line module (200) connects second muting control circuit (201) of the second audio frequency power amplifier (203), described the second transceiving line module (200) output terminal connects the second audio frequency power amplifier (203) input end, described the second audio frequency power amplifier (203) output terminal connects second wired input circuit (202), described second wired input circuit (202) output terminal connects the second broadcasting unit (204), described the second transceiving line module (200) port connects the second microcomputer control unit (210).

3. device according to claim 1 and 2, it is characterized in that, described the first microcomputer control unit (110) port connects the first transmit modulator (112) and the first receiving demodulation device (114), and described the first transmit modulator (112) and the first receiving demodulation device (114) output terminal connect the first coupled antenna (111);

Described the second microcomputer control unit (210) port connects the second transmit modulator (212) and the second receiving demodulation device (214), and described the second transmit modulator (212) and the second receiving demodulation device (214) output terminal connect the second coupled antenna (211).

4. device according to claim 3, it is characterized in that, described the first public address system A1 comprises the first battery (113), and described the first battery (113) is electrically connected the first microcomputer control unit (110), the first transceiving line module (100), the first coupled antenna (111), the first audio frequency power amplifier (103), first wired input circuit (102);

Described the second public address system A2 comprises the second battery (213), and described the second battery (213) connects the second microcomputer control unit (210), the second transceiving line module (200), the second coupled antenna (211), the second audio frequency power amplifier (203), second wired input circuit (202).

5. device according to claim 1 and 2, it is characterized in that, described the first transceiving line module (100) port connects respectively first mode gauge tap (109), first power switch/pairing (108), the first volume adjusting button (106), a USB charging port (107), and described the first transceiving line module (100) port also connects the first display lamp (105), the first microphone (115), the first audio frequency power amplifier (103), the first muting control circuit (101);

Described the second transceiving line module (200) port connects respectively the second mode control switch (209), second source switch/pairing (208), the second volume adjusting button (206), the 2nd USB charging port (207), and described the second transceiving line module (200) port also connects the second display lamp (205), second microphone (215), the second audio frequency power amplifier (203), the second muting control circuit (201).

6. device according to claim 1 and 2, is characterized in that, described the first transceiving line module (100) connects the first antenna (131), and the second transceiving line module (200) connects the second antenna (231).

7. device according to claim 3, is characterized in that, the radiobeam frequency of the switch charge signal modulation of described the first coupled antenna (111) and the second coupled antenna (211) is between 1MHz～2450MHz.