Bluetooth system and electronic device integrating microphone and selfie

Abstract

The application discloses a kind of integrated microphone and selfie Bluetooth system and electronic equipment, it is related to electronic circuit technical field, the device includes: slave module, slave module includes slave power unit, pickup unit, slave control unit, function button unit and wireless transmitting unit;Host module, host module includes host power unit, host control unit, selfie operation unit and wireless receiving and transmitting unit;Wherein, slave module and host module are communicated by Bluetooth, slave module is configured to collect sound source, and convert into electrical signal by first Bluetooth protocol transmission to host module;Host module is configured to receive electrical signal, and by second Bluetooth protocol or data line transmission to user end;Selfie operation unit is configured to interact with the camera system of user end by third Bluetooth protocol.The function of sound acquisition and selfie is integrated by combining slave, host module, and using different Bluetooth communication protocols between them to complete data transmission.

Description

Technical Field

[0001] This application relates to the field of electronic circuit technology, and in particular to a Bluetooth system and electronic device that integrates a microphone and a selfie camera. Background Technology

[0002] With the rapid development of the mobile internet and new media industry, content creation forms such as short video shooting, mobile live streaming, and personal self-media are becoming increasingly popular. Wireless microphones and selfie sticks have become common auxiliary devices in mobile shooting scenarios. Among them, wireless microphones can eliminate the constraints of wires, achieve long-distance, high-quality audio acquisition, and effectively improve the recording effect; selfie sticks can achieve multi-angle support for mobile phones and long-distance shooting control, meeting users' needs for daily recording, outdoor framing, and impromptu interviews.

[0003] Currently, most wireless microphones and selfie sticks on the market are designed as independent structures, requiring separate assembly and combination to achieve their respective functions. In actual use, the phone needs to be fixed to the selfie stick clamp, and then the wireless microphone needs to be separately installed and secured, forming a shooting combination through multiple device assembly. This method is not only cumbersome to assemble, but also results in a large and heavy overall size after stacking multiple devices, lacking a lightweight feel and making it inconvenient to carry and store. Furthermore, the wires between the independent devices are prone to tangling, leading to poor operational coordination and fatigue during prolonged handheld use, causing significant inconvenience to the user and failing to meet the needs for lightweight and convenient mobile shooting. Summary of the Invention

[0004] The main purpose of this application is to propose a Bluetooth system and electronic device that integrates a microphone and a selfie camera, aiming to solve the problems of large size, concentrated weight, cumbersome assembly, poor portability and inconvenience of use that exist in the prior art where the wireless microphone and selfie camera are used independently and separately.

[0005] To achieve the above objectives, this application proposes a Bluetooth system integrating a microphone and selfie function. This integrated microphone and selfie Bluetooth system includes: a slave module, comprising a slave power supply unit, a microphone pickup unit, a slave control unit, a function button unit, and a wireless transmission unit; the slave power supply unit is coupled to the microphone pickup unit and the slave control unit, and the slave control unit is coupled to the microphone pickup unit, the function button unit, and the wireless transmission unit; and a master module, comprising a master power supply unit, a master control unit, a selfie operation unit, and a wireless transmission unit; the master control unit is coupled to the master power supply unit, the selfie operation unit, and the wireless transmission unit. The slave module and the master module communicate via Bluetooth. The slave module is configured to acquire sound sources and convert them into electrical signals, which are then transmitted to the master module via a first Bluetooth protocol. The master module is configured to receive electrical signals and transmit them to the user terminal via a second Bluetooth protocol or a data cable. The selfie operation unit is configured to interact with the user terminal's camera system via a third Bluetooth protocol.

[0006] In one embodiment, the slave power supply unit includes: an external interface coupled to a slave control unit; a protection device, a first terminal of which is coupled to the external interface, a second terminal of which is coupled to a voltage source, and a third terminal of which is grounded; and a power supply group, a first terminal of which is coupled to the slave control unit, a second terminal of which is coupled to a voltage source, and a third terminal of which is grounded.

[0007] In one embodiment, the power supply group includes: a voltage regulator, a first terminal of which is coupled to a slave control unit, a second terminal of which is coupled to a voltage source, and a third terminal of which is grounded; a first power supply group resistor, which is coupled to a fourth terminal of the voltage regulator, and a second terminal of which is coupled to a first terminal of the voltage regulator; a first power supply group capacitor, whose first terminal is coupled to a first terminal of the voltage regulator, and a second terminal of which is grounded; and a second power supply group capacitor, whose first terminal is coupled to a second terminal of the voltage regulator, and a second terminal of which is grounded.

[0008] In one embodiment, the pickup unit includes: a microphone group, a first end of which is coupled to a slave control unit; and an amplifier group, a first end of which is coupled to a second end of the microphone group, and the second end of which is coupled to the slave control unit.

[0009] In one embodiment, the microphone assembly includes: a microphone; a first component, a first terminal of which is coupled to a first terminal of the microphone, and a second terminal of which is grounded; a protection diode, a first terminal of which is coupled to a second terminal of the microphone, and which is grounded; a first capacitor, a first terminal of which is coupled to a second terminal of the microphone, and which is grounded; a first inductor, a first terminal of which is coupled to a second terminal of the microphone; a second capacitor, a first terminal of which is coupled to a second terminal of the first inductor, and which is grounded; a second component, a first terminal of which is coupled to a second terminal of the first inductor; a third capacitor, a first terminal of which is coupled to a second terminal of the second component, and which is grounded; a first resistor, a first terminal of which is coupled to a second terminal of the second component; a fourth capacitor, a first terminal of which is coupled to a second terminal of the first resistor, and which is grounded; a second resistor, a first terminal of which is coupled to a first terminal of the fourth capacitor, and the second terminal of the second resistor is coupled to a slave control unit; and a fifth capacitor, a first terminal of which is coupled to a second terminal of the second component, and the second terminal of the fifth capacitor is coupled to an amplifier assembly.

[0010] In one embodiment, the amplification group includes: a third resistor, the first end of which is coupled to a microphone group; a sixth capacitor, the first end of which is coupled to a second end of the third resistor; a fourth resistor, the first end of which is coupled to a second end of the third resistor, and the second end of which is coupled to a second end of the sixth capacitor; an amplifier, the first input terminal of which is coupled to a second end of the third resistor, and the output terminal of which is coupled to a second end of the fourth resistor; a seventh capacitor, the first end of which is coupled to the output terminal of the amplifier, and the second end of which is coupled to a slave control unit; a fifth resistor, the first end of which is coupled to a second end of the seventh capacitor, and the second end of which is grounded; an eighth capacitor, the first end of which is coupled to a second input terminal of the amplifier, and the second end of which is grounded; a sixth resistor, the first end of which is coupled to a second input terminal of the amplifier, and the second end of which is grounded; a seventh resistor, the first end of which is coupled to a second input terminal of the amplifier, and the second end of which is coupled to a voltage source; a ninth capacitor, the first end of which is coupled to a voltage source, and the second end of which is grounded; and a tenth capacitor, the first end of which is coupled to a voltage source, and the second end of which is grounded.

[0011] In one embodiment, the slave control unit includes: a control chip; an antenna group, a first end of which is coupled to a first end of the control chip, and a second end of which is grounded; and a crystal oscillator group, which is coupled to a second end of the control chip.

[0012] In one embodiment, the host control unit and the slave control unit have the same structure.

[0013] In one embodiment, the selfie operation unit includes: a first button, coupled to the host control unit, configured to switch between the user's front and rear cameras; a second button, coupled to the host control unit, configured to control the power supply of the device; and a dial button, coupled to the host control unit, configured to perform photo / video / focus functions.

[0014] This application also proposes an electronic device comprising: a Bluetooth system integrating a microphone and a selfie camera; a magnetic component coupled to a host module in the Bluetooth system integrating a microphone and a selfie camera; and a lavalier component coupled to a slave module in the Bluetooth system integrating a microphone and a selfie camera; wherein the Bluetooth system integrating a microphone and a selfie camera is the Bluetooth system integrating a microphone and a selfie camera as described in any of the embodiments above.

[0015] The technical solution of this application integrates slave and master modules, with the self-portrait function integrated on the master module and the audio pickup function integrated on the slave module. Data transmission is completed using different Bluetooth communication protocols between them, thus integrating sound acquisition and self-portrait functions. These functions can be used separately or in combination. This integration method improves the portability of the device and enhances the convenience of shooting, recording and other scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an embodiment of the Bluetooth system integrating a microphone and selfie function provided in this application.

[0018] Figure 2 This is a schematic diagram of the structure of an embodiment of the slave module provided in this application.

[0019] Figure 3 This is a schematic diagram of the structure of an embodiment of the host module provided in this application.

[0020] Figure 4 This is a schematic diagram of the first embodiment of the slave power supply unit provided in this application.

[0021] Figure 5 This is a schematic diagram of the second embodiment of the slave power supply unit provided in this application.

[0022] Figure 6 This is a schematic diagram of the structure of the first embodiment of the pickup unit provided in this application.

[0023] Figure 7 This is a schematic diagram of the structure of the second embodiment of the pickup unit provided in this application.

[0024] Figure 8 This is a schematic diagram of the first embodiment of the slave control unit provided in this application.

[0025] Figure 9 This is a schematic diagram of the second embodiment of the slave control unit provided in this application.

[0026] Figure 10 This is a schematic diagram of an embodiment of the host control unit provided in this application.

[0027] Figure 11 This is a schematic diagram of the structure of an embodiment of the selfie operation unit provided in this application.

[0028] Figure 12 This is a schematic diagram of the structure of an embodiment of the electronic device provided in this application.

[0029] Explanation of icon numbers: 100. Bluetooth system integrating microphone and selfie function; 1. Slave module; 2. Master module; 11. Slave power supply unit; 12. Sound pickup unit; 13. Slave control unit; 14. Function button unit; 15. Wireless transmission unit; 21. Master power supply unit; 22. Master control unit; 23. Selfie operation unit; 24. Wireless receiving and transmitting unit; 111. External interface; 112. Protection device; 113. Power supply group; 121. Microphone group; 122. Amplifier group; 131. Control chip; 132. Antenna group; 133. Crystal oscillator group; 231. First button; 232. Second button; 233. Shift wheel button.

[0030] 200. Electronic equipment; 210. Magnetic assemblies; 220. Lavalier clip assemblies.

[0031] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0035] In recent years, short video platforms, mobile live streaming, and the personal media industry have rapidly gained popularity. The number of ordinary users, content creators, restaurant bloggers, and outdoor filmmakers has been increasing daily, significantly boosting the demand for lightweight and portable mobile shooting and audio capture equipment. Wireless microphones, free from the constraints of wires, offering clear sound pickup and adaptability to various scenarios, have become a standard accessory for content creation. Selfie sticks (selfie frames / handheld tripods) enable long-distance framing, stable holding, and multi-angle shooting; together, they constitute the core auxiliary tools for mobile shooting.

[0036] Currently, wireless microphones and selfie sticks are generally separate products on the market. Users need to purchase, carry, and operate them separately, requiring multiple devices to be assembled and coordinated to complete shooting and audio recording. This separate solution has a series of inherent drawbacks, seriously affecting the user experience.

[0037] To address these issues, this application proposes a Bluetooth system integrating a microphone and a selfie camera.

[0038] Please see Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 This is a schematic diagram of the structure of an embodiment of the Bluetooth system integrating a microphone and selfie function provided in this application; Figure 2 This is a schematic diagram of the structure of an embodiment of the slave module provided in this application; Figure 3This is a schematic diagram of the structure of an embodiment of the host module provided in this application; in one embodiment of this application, the Bluetooth system 100 integrating microphone and selfie function includes: a slave module 1, which includes a slave power supply unit 11, a pickup unit 12, a slave control unit 13, a function button unit 14, and a wireless transmission unit 15; the slave power supply unit 11 is coupled to the pickup unit 12 and the slave control unit 13, and the slave control unit 13 is coupled to the pickup unit 12, the function button unit 14, and the wireless transmission unit 15; and a host module 2, which includes a host power supply unit 21 and a host control unit. 22. Self-portrait operation unit 23 and wireless transmission and reception unit 24; host control unit 22 is coupled to host power unit 21, self-portrait operation unit 23 and wireless transmission and reception unit 24 respectively; wherein, slave module 1 and host module 2 communicate via Bluetooth, slave module 1 is configured to collect sound source and convert it into electrical signal and transmit it to host module 2 via first Bluetooth protocol; host module 2 is configured to receive electrical signal and transmit it to user end (i.e., device terminal) via second Bluetooth protocol or data cable; self-portrait operation unit 23 is configured to interact with the camera system of user end via third Bluetooth protocol.

[0039] Understandably, in order to more conveniently realize the functions of recording and taking pictures, such as recording audio from a distance with a mobile phone while taking pictures or videos, this application integrates the wireless Bluetooth microphone and wireless Bluetooth selfie camera functions into one system and adopts an independent setting method so that users can simultaneously take selfies, record audio, and record video.

[0040] In traditional solutions, selfie sticks only have a selfie button and lack microphone voice capture functionality. This application, by employing the method described above, enables the slave module 1 to receive the audio signal captured by the pickup unit 12, which is then received and transmitted to the mobile phone via the host module 2, achieving video synchronization with the phone and thus forming a live streaming function. For example, when the person is far from the mobile phone (device terminal), directly using the phone for live streaming will weaken the phone's voice acquisition function, resulting in low volume or easy interference. By using the slave module 1 to capture the audio signal (e.g., a microphone TX collar microphone hung close to the user's collar) and completing voice interaction with the host module 2 (e.g., the host module 2 integrated into the handle), these problems can be mitigated.

[0041] The slave module 1 is used for real-time sound source acquisition, converting sound signals into electrical signals, then into digital signals, and then transmitting the data to the host module 2 via a special Bluetooth protocol. The host module 2 integrates a photo-taking function, receiving wireless Bluetooth protocol data from the slave module 1 and transmitting it to the mobile phone terminal's Bluetooth system via a special Bluetooth protocol for recording. The selfie operation unit 23 interacts with the mobile phone's camera system through a special Bluetooth protocol via the HID protocol interface, enabling the mobile phone's Bluetooth system to control functions such as focusing, taking photos, and recording videos.

[0042] The technical solution of this application integrates a slave module and a master module 2, respectively integrating a self-portrait function on the master module 2 and a sound pickup function on the slave module 1, and using different Bluetooth communication protocols to complete data transmission, thereby integrating sound acquisition and self-portrait functions. It can be used separately or in combination. This integration method is beneficial to the portability of the device and improves the convenience of shooting, recording and other scenarios.

[0043] In one embodiment, such as Figure 4 As shown, Figure 4 This is a schematic diagram of the first embodiment of the slave power supply unit provided in this application; the slave power supply unit 11 includes: an external interface 111, which is coupled to the slave control unit 13; a protection device 112, the first end of which is coupled to the external interface 111, the second end of which is coupled to a voltage source, and the third end of which is grounded; and a power supply group 113, the first end of which is coupled to the slave control unit 13, the second end of which is coupled to a voltage source, and the third end of which is grounded.

[0044] In one embodiment, the power supply group 113 includes: a voltage regulator W1, the first terminal of which is coupled to the slave control unit 13, the second terminal of which is coupled to a voltage source, and the third terminal of which is grounded; a first power supply group resistor GR1, the first power supply group resistor GR1 being coupled to the fourth terminal of the voltage regulator W1, and the second terminal of which is coupled to the first terminal of the voltage regulator W1; a first power supply group capacitor GC1, the first terminal of which is coupled to the first terminal of the voltage regulator W1, and the second terminal of which is grounded; and a second power supply group capacitor GC2, the first terminal of which is coupled to the second terminal of the voltage regulator W1, and the second terminal of which is grounded.

[0045] In conjunction with the above embodiments, such as Figure 5 As shown, Figure 5This is a schematic diagram of the structure of the second embodiment of the slave power supply unit provided in this application; it can be understood that in this embodiment, the solution is a solution of a specific embodiment of the slave power supply unit 11, wherein, Figure 5 The content can be referred to Figure 4 By making a comparison, it is possible to... Figure 5 The structural diagram in the image can help to better understand the solution in this application.

[0046] In one embodiment, such as Figure 6 As shown, Figure 6 This is a schematic diagram of the structure of the first embodiment of the pickup unit provided in this application; the pickup unit 12 includes: a microphone group 121, the first end of which is coupled to the slave control unit 13; an amplifier group 122, the first end of which is coupled to the second end of the microphone group 121, and the second end of which is coupled to the slave control unit 13.

[0047] In one embodiment, such as Figure 6 As shown, the microphone assembly 121 includes: a microphone M1; a first component B1, the first end of which is coupled to the first end of the microphone M1, and the second end of the first component B1 is grounded; a protection diode TVS, the first end of which is coupled to the second end of the microphone M1, and the protection diode TVS is grounded; a first capacitor C1, the first end of which is coupled to the second end of the microphone M1, and the second end of the first capacitor C1 is grounded; a first inductor L1, the first end of which is coupled to the second end of the microphone M1; a second capacitor C2, the first end of which is coupled to the second end of the first inductor L1, and the second end of the second capacitor C2 is grounded; and a second component B2. The first terminal is coupled to the second terminal of the first inductor L1; the third capacitor C3, the first terminal of the third capacitor C3 is coupled to the second terminal of the second component B2, and the second terminal of the third capacitor C3 is grounded; the first resistor R1, the first terminal of the first resistor R1 is coupled to the second terminal of the second component B2; the fourth capacitor C4, the first terminal of the fourth capacitor C4 is coupled to the second terminal of the first resistor R1, and the second terminal of the fourth capacitor C4 is grounded; the second resistor R2, the first terminal of the second resistor R2 is coupled to the first terminal of the fourth capacitor C4, and the second terminal of the second resistor R2 is coupled to the slave control unit 13; the fifth capacitor C5, the first terminal of the fifth capacitor C5 is coupled to the second terminal of the second component B2, and the second terminal of the fifth capacitor C5 is coupled to the amplifier group 122.

[0048] Understandably, the first component B1 is set as a resistor, and the second component B2 is set as an interference suppression device, such as a ferrite bead.

[0049] In one embodiment, such as Figure 6As shown, the amplifier group 122 includes: a third resistor R3, the first end of which is coupled to the microphone group 121; a sixth capacitor C6, the first end of which is coupled to the second end of the third resistor R3; a fourth resistor R4, the first end of which is coupled to the second end of the third resistor R3, and the second end of which is coupled to the second end of the sixth capacitor C6; an amplifier OP1, the first input terminal of which is coupled to the second end of the third resistor R3, and the output terminal of which is coupled to the second end of the fourth resistor R4; a seventh capacitor C7, the first end of which is coupled to the output terminal of the amplifier OP1, and the second end of which is coupled to the slave control unit 13; and a fifth resistor R5. The first terminal is coupled to the second terminal of the seventh capacitor C7, and the second terminal of the fifth resistor R5 is grounded; the eighth capacitor C8, the first terminal of the eighth capacitor C8 is coupled to the second input terminal of the amplifier OP1, and the second terminal of the eighth capacitor C8 is grounded; the sixth resistor R6, the first terminal of the sixth resistor R6 is coupled to the second input terminal of the amplifier OP1, and the second terminal of the sixth resistor R6 is grounded; the seventh resistor R7, the first terminal of the seventh resistor R7 is coupled to the second input terminal of the amplifier OP1, and the second terminal of the seventh resistor R7 is coupled to a voltage source; the ninth capacitor C9, the first terminal of the ninth capacitor C9 is coupled to a voltage source, and the second terminal of the ninth capacitor C9 is grounded; the tenth capacitor C10, the first terminal of the tenth capacitor C10 is coupled to a voltage source, and the second terminal of the tenth capacitor C10 is grounded.

[0050] Understandably, referring to the above embodiment of the pickup unit 12, see... Figure 7 As shown, Figure 7 This is a schematic diagram of the structure of the second embodiment of the pickup unit provided in this application; wherein, this embodiment is a schematic diagram of a specific implementation of the pickup unit 12, and... Figure 6 The comparison is used to better understand the functional implementation of the solution in this application.

[0051] In one embodiment, such as Figure 8 As shown, Figure 8 This is a schematic diagram of the first embodiment of the slave control unit provided in this application; the slave control unit 13 includes: a control chip 131; an antenna group 132, the first end of the antenna group 132 being coupled to the first end of the control chip 131, and the second end of the antenna group 132 being grounded; and a crystal oscillator group 133, the crystal oscillator group 133 being coupled to the second end of the control chip 131.

[0052] In one embodiment, the host control unit 22 and the slave control unit 13 have the same structure.

[0053] Specifically, in this embodiment, the main difference lies in the coupling relationship between the host control unit 22 and the slave control unit 13, but the structures are the same.

[0054] Understandable, please refer to Figure 9 and Figure 10 As shown, Figure 9 This is a schematic diagram of the second embodiment of the slave control unit provided in this application; Figure 10 This is a schematic diagram of the structure of an embodiment of the host control unit provided in this application; wherein Figure 9 and Figure 10 This is a schematic diagram of a specific embodiment of the slave control unit 13 and the master control unit 22, respectively. Figure 8 Corresponding. In this embodiment, it can be seen that, in Figure 9 and Figure 10 In this design, the slave control unit 13 and the master control unit 22 have largely the same structural configuration, differing only in their coupling configuration and some components. See [link to documentation] for details. Figure 9 and Figure 10 As shown.

[0055] In one embodiment, such as Figure 11 As shown, Figure 11 This is a schematic diagram of the structure of an embodiment of the selfie operation unit provided in this application; the selfie operation unit 23 includes: a first button 231, which is coupled to the host control unit 22 and is configured to switch between the front and rear cameras of the user terminal; a second button 232, which is coupled to the host control unit 22 and is configured to control the power supply of the device; and a dial button 233, which is coupled to the host control unit 22 and is configured to perform photo / video / focusing functions.

[0056] This application also proposes an electronic device 200, such as... Figure 12 As shown, Figure 12 This is a schematic diagram of an embodiment of the electronic device provided in this application; the electronic device 200 includes: a Bluetooth system 100 integrating a microphone and selfie function; a magnetic component 210, which is coupled to a host module 2 in the Bluetooth system 100; and a lapel clip component 220, which is coupled to a slave module 1 in the Bluetooth system 100; wherein, the Bluetooth system 100 integrating a microphone and selfie function is the Bluetooth system 100 integrating a microphone and selfie function as described in any of the above embodiments. The specific structure of the Bluetooth system 100 integrating a microphone and selfie function is the same as described in the above embodiments. Since the electronic device 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0057] In one embodiment, the outer shell of the magnetic attachment 210 can be shaped like a mobile phone selfie handle, with the main module 2 built into the shell. The shell can fix the mobile phone using magnets or a phone clip, allowing the user to hold the handle for live streaming. The outer shell of the collar clip 220 is designed as a collar microphone, which the user clips onto their collar for recording. The pickup unit 12 picks up the voice and converts it into an electrical signal. The wireless transmission unit 15 transmits the electrical signal to the main module 2. The receiving module in the wireless receiving and transmitting unit 24 of the main module 2 receives the electrical signal and transmits it to the mobile phone via a Type-C data cable, a 3.5mm TRS connection cable, or a second Bluetooth protocol. Additionally, when it is necessary to drive the mobile phone to take a picture, the button on the handle is activated, such as pressing a button, to activate the selfie operation unit. The transmitting module of the wireless receiving and transmitting unit 24 of the main module 2 sends a photo-taking command to the mobile phone via a third Bluetooth protocol, thereby driving the mobile phone to take a picture.

[0058] The technical solution of this application integrates a slave module and a master module 2, respectively integrating a self-portrait function on the master module 2 and a sound pickup function on the slave module 1, and using different Bluetooth communication protocols to complete data transmission, thereby integrating sound acquisition and self-portrait functions. It can be used separately or in combination. This integration method is beneficial to the portability of the device and improves the convenience of shooting, recording and other scenarios.

[0059] The above are merely exemplary embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A Bluetooth system integrating a microphone and selfie function, characterized in that, The Bluetooth system integrating a microphone and selfie function includes: The slave module includes a slave power supply unit, a microphone unit, a slave control unit, and a wireless transmission unit; the slave power supply unit is coupled to the microphone unit and the slave control unit, and the slave control unit is coupled to the microphone unit and the wireless transmission unit. The host module includes a host power supply unit, a host control unit, a selfie operation unit, and a wireless transmission and reception unit; the host control unit is coupled to the host power supply unit, the selfie operation unit, and the wireless transmission and reception unit respectively. The slave module and the host module communicate via Bluetooth. The slave module is configured to collect sound sources and convert them into electrical signals, which are then transmitted to the host module via a first Bluetooth protocol. The host module is configured to receive the electrical signals and transmit them to the user terminal via a second Bluetooth protocol or a data cable. The selfie operation unit is configured to interact with the user terminal's camera system via a third Bluetooth protocol.

2. The Bluetooth system integrating a microphone and selfie function as described in claim 1, characterized in that, The slave power supply unit includes: An external interface, which is coupled to the slave control unit; A protection device, wherein a first terminal of the protection device is coupled to the external interface, a second terminal of the protection device is coupled to a voltage source, and a third terminal of the protection device is grounded; A power supply group, wherein the first terminal of the power supply group is coupled to the slave control unit, the second terminal of the power supply group is coupled to a voltage source, and the third terminal of the power supply group is grounded.

3. The Bluetooth system integrating a microphone and selfie function as described in claim 2, characterized in that, The power supply group includes: A voltage regulator, wherein a first terminal of the voltage regulator is coupled to the slave control unit, a second terminal of the voltage regulator is coupled to a voltage source, and a third terminal of the voltage regulator is grounded; The first power supply group resistor is coupled to the fourth terminal of the voltage regulator, and the second terminal of the first power supply group resistor is coupled to the first terminal of the voltage regulator. The first power supply group capacitor has a first terminal coupled to the first terminal of the voltage regulator device, and the second terminal of the first power supply group capacitor is grounded. The second power supply capacitor has its first terminal coupled to the second terminal of the voltage regulator, and its second terminal grounded.

4. The Bluetooth system integrating a microphone and selfie function as described in claim 1, characterized in that, The pickup unit includes: A microphone assembly, the first end of which is coupled to the slave control unit; An amplifier group, the first end of which is coupled to the second end of the microphone group, and the second end of which is coupled to the slave control unit.

5. The Bluetooth system integrating a microphone and selfie function as described in claim 4, characterized in that, The microphone assembly includes: microphone; A first component, wherein a first end of the first component is coupled to a first end of the microphone, and a second end of the first component is grounded; A protection diode, wherein a first terminal of the protection diode is coupled to a second terminal of the microphone, and the protection diode is grounded; A first capacitor, a first terminal of which is coupled to a second terminal of the microphone, and a second terminal of which is grounded; A first inductor, wherein a first end of the first inductor is coupled to a second end of the microphone; The second capacitor has a first terminal coupled to the second terminal of the first inductor and a second terminal grounded. The second component, wherein the first end of the second component is coupled to the second end of the first inductor; The third capacitor has a first terminal coupled to the second terminal of the second component, and the second terminal of the third capacitor is grounded. A first resistor, wherein a first end of the first resistor is coupled to a second end of the second component; A fourth capacitor, wherein the first terminal of the fourth capacitor is coupled to the second terminal of the first resistor, and the second terminal of the fourth capacitor is grounded; The second resistor has its first end coupled to the first end of the fourth capacitor and its second end coupled to the slave control unit. The fifth capacitor has its first terminal coupled to the second terminal of the second component, and its second terminal coupled to the amplification group.

6. The Bluetooth system integrating a microphone and selfie function as described in claim 4, characterized in that, The amplification group includes: A third resistor, the first end of which is coupled to the microphone assembly; A sixth capacitor, the first terminal of which is coupled to the second terminal of the third resistor; A fourth resistor, the first end of which is coupled to the second end of the third resistor, and the second end of the fourth resistor is coupled to the second end of the sixth capacitor; An amplifier, wherein the first input terminal of the amplifier is coupled to the second terminal of the third resistor, and the output terminal of the amplifier is coupled to the second terminal of the fourth resistor; A seventh capacitor, the first end of which is coupled to the output terminal of the amplifier, and the second end of which is coupled to the slave control unit; The fifth resistor has its first end coupled to the second end of the seventh capacitor, and its second end is grounded. The eighth capacitor has its first terminal coupled to the second input terminal of the amplifier, and its second terminal grounded. The sixth resistor has its first end coupled to the second input terminal of the amplifier, and its second end grounded. The seventh resistor has its first end coupled to the second input terminal of the amplifier and its second end coupled to a voltage source. The ninth capacitor has its first terminal coupled to a voltage source and its second terminal grounded. The tenth capacitor has its first terminal coupled to a voltage source and its second terminal grounded.

7. The Bluetooth system integrating a microphone and selfie function as described in claim 1, characterized in that, The slave control unit includes: Control chip; An antenna group, wherein a first end of the antenna group is coupled to a first end of the control chip, and a second end of the antenna group is grounded; A crystal oscillator group, which is coupled to the second terminal of the control chip.

8. The Bluetooth system integrating a microphone and selfie function as described in claim 1, characterized in that, The host control unit and the slave control unit have the same structure.

9. The Bluetooth system integrating a microphone and selfie function as described in claim 1, characterized in that, The selfie operation unit includes: A first button, coupled to the host control unit, is configured to switch between the user's front and rear cameras; A second button is coupled to the host control unit and is configured to control the power supply of the device. A rotary dial button, coupled to the main control unit, is configured to perform photo / video / focus functions.

10. An electronic device, characterized in that, The electronic device includes: A Bluetooth system integrating a microphone and selfie function; A magnetic attachment component, which is coupled to the host module in the Bluetooth system integrating a microphone and selfie camera; A lapel clip assembly, which is coupled to a slave module in the Bluetooth system with integrated microphone and selfie function; The integrated microphone and selfie Bluetooth system is the integrated microphone and selfie Bluetooth system as described in any one of claims 1-9.

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