A wireless microphone system

Abstract

The application relates to the technical field of microphones, and discloses a wireless microphone system, wherein the microphone system of the application comprises a receiver and a handheld transmitting microphone; the receiver is detachably connected with an external device; the receiver is internally provided with a sector antenna; and the receiver is wirelessly connected with the handheld transmitting microphone through the sector antenna. According to the scheme, the traditional external columnar antenna is arranged as an internal sector antenna, and the detachable connection design of the receiver and the external device is combined, so that the wireless microphone system is synergistically improved in signal stability, anti-interference capability and use flexibility.

Description

Technical Field

[0001] This application relates to the field of microphone technology, and more particularly to a wireless microphone system. Background Technology

[0002] With the rapid development of wireless communication technology, wireless microphone systems are widely used in various scenarios such as conferences, performances, and education due to their convenience and flexibility. A wireless microphone system typically consists of a handheld microphone and a receiver, where the receiver is responsible for receiving the ultra-high frequency (UHF) radio frequency signals emitted by the microphone and converting them into audio signals.

[0003] In existing technologies, traditional receivers mostly use external cylindrical antennas for signal reception. This antenna design has several shortcomings in practical applications: First, external antennas require additional installation space, making installation in densely packed equipment racks inconvenient; second, the cylindrical antenna protrudes from the outside of the equipment, making it susceptible to damage from collisions or accidental stress during daily use; furthermore, due to the poor directivity of the antenna and the difficulty in adjusting the angle after installation, it is often impossible to maintain the optimal signal reception position with the handheld microphone, resulting in unstable signal reception quality and affecting sound performance. Utility Model Content

[0004] In view of this, the present application provides a wireless microphone system that can effectively solve the problems in the prior art, such as the inconvenience of installation caused by the use of an external cylindrical antenna for the receiver, the susceptibility to damage due to collision or accidental force, and the unstable signal reception quality.

[0005] In a first aspect, embodiments of this application provide a wireless microphone system, including: a receiver and a handheld transmitting microphone, wherein the receiver is detachably connected to an external device, the receiver has a built-in fan-shaped antenna, and the receiver establishes a wireless communication connection with the handheld transmitting microphone through the fan-shaped antenna.

[0006] In some embodiments, the fan-shaped antenna is a hollowed-out wing-shaped metal plate.

[0007] In some embodiments, the top of the skeleton of the hollowed-out wing-shaped metal plate has a notch.

[0008] In some embodiments, a magnetic attachment assembly is provided on one side of the receiver, which is used to magnetically attach the receiver to the metal sidewall of the external device.

[0009] In some embodiments, a mounting structure is provided on one side of the receiver.

[0010] In some embodiments, the receiver is provided with an optical fiber audio output interface and a built-in optical fiber audio transmission module. The optical fiber audio transmission module is configured to convert analog audio signals into digital optical signals and transmit them to a pre-amplifier audio processing device through the optical fiber audio output interface.

[0011] In some embodiments, the receiver is provided with an infrared two-way communication module, and the handheld transmitter microphone is provided with an infrared communication port.

[0012] In some embodiments, the handheld transmitter microphone includes an upper tube and a lower tube arranged coaxially. The lower tube moves axially relative to the upper tube via a sliding mechanism. The top of the lower tube is provided with an infrared communication window corresponding to the infrared communication port. When the lower tube is pulled down, the infrared communication window is exposed.

[0013] In some embodiments, the lower tube is connected to an elastic reset element. When the external force applied to the lower tube is removed, the elastic reset element drives the lower tube to automatically reset and re-cover the infrared communication window.

[0014] In some embodiments, the sliding mechanism is a damped sliding mechanism.

[0015] The embodiments of this application have the following beneficial effects: The microphone system disclosed in this application includes a receiver and a handheld transmitting microphone. The receiver is detachably connected to an external device. The receiver has a built-in fan-shaped antenna, which establishes a wireless communication connection with the handheld transmitting microphone. This solution achieves a synergistic improvement in signal stability, anti-interference capability, and usage flexibility by replacing the traditional external cylindrical antenna with a built-in fan-shaped antenna and combining this with the detachable connection design between the receiver and the external device. The built-in fan-shaped antenna not only optimizes the product's appearance and enhances durability but also, with its unique horizontal directional gain, focuses and strengthens signal reception in target areas such as the stage, effectively suppressing multipath interference and noise from non-target directions. Simultaneously, the receiver can be flexibly disassembled and deployed in the optimal installation location, avoiding limitations imposed by cabinet space. This allows it to be kept away from interference sources and always maintains the antenna facing the user, fully utilizing the spatial directional advantage of the fan-shaped antenna. This significantly reduces anomalies such as dropouts and crosstalk, improving the reliability of wireless communication and audio transmission quality, meeting the stringent requirements of stable, high-definition voice acquisition in professional settings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A first structural schematic diagram of a wireless microphone system according to an embodiment of this application is shown; Figure 2 A schematic diagram of the structure of the sector antenna according to an embodiment of this application is shown; Figure 3 A schematic diagram of the receiver structure according to an embodiment of this application is shown; Figure 4 A first structural schematic diagram of a handheld transmitting microphone according to an embodiment of this application is shown; Figure 5 A second structural schematic diagram of a handheld transmitting microphone according to an embodiment of this application is shown.

[0018] Explanation of key component symbols: 10: Receiver; 11: Fan-shaped antenna; 12: Fiber optic audio transmission module; 13: Fiber optic audio output interface; 14: Infrared two-way communication module; 20: Handheld transmitter microphone; 21: Upper tube body; 22: Lower tube body; 23: Infrared communication window; 30: Pre-amplifier audio processing equipment. Detailed Implementation The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0019] The components of the embodiments of this application described and illustrated in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] In the following text, the terms "comprising," "having," and their cognates, which may be used in various embodiments of this application, are intended only to indicate a particular feature, number, step, operation, element, component, or combination thereof, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more combinations thereof. Furthermore, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0021] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this application pertain. Terms (such as those defined in commonly used dictionaries) shall be interpreted as having the same meaning as in their contextual meaning in the relevant technical field and shall not be construed as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this application.

[0022] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0023] Traditional wireless microphone systems face key technical challenges in practical applications, including limited receiver installation and susceptibility to electromagnetic interference, fragile external antennas and unstable signal reception, and low system integration leading to inflexible deployment. These issues severely impact the reliability of audio transmission and user experience. This application addresses these challenges by designing the receiver 10 with a detachable connection structure and incorporating a built-in fan-shaped antenna 11. This effectively overcomes the space limitations of rack-mounted installation, allowing the receiver 10 to be deployed in locations far from interference sources and with superior signal reception. Simultaneously, the built-in fan-shaped antenna 11 not only enhances the product's aesthetics and damage resistance but also improves signal capture in target areas such as stages due to its excellent horizontal directionality, suppressing multipath effects and external noise interference. The overall solution significantly improves the system's anti-interference capability, signal stability, and deployment flexibility, resolving issues such as sound dropouts, high noise levels, and inconvenient installation in traditional systems under complex electromagnetic environments. This meets the diverse application scenarios' demands for high-performance wireless audio transmission.

[0024] The wireless microphone system will be described below with reference to some specific embodiments.

[0025] Figure 1A schematic diagram of a wireless microphone system according to an embodiment of this application is shown. Exemplarily, the microphone system includes a receiver 10 and a handheld transmitting microphone 20. The receiver 10 is detachably connected to external devices, allowing it to be flexibly installed in different locations according to actual application scenarios, overcoming the limitations of traditional fixed cabinet installations. The receiver 10 has a built-in fan-shaped antenna 11.

[0026] To achieve convenient and stable installation, the receiver 10 can be configured according to the actual application. A magnetic component or a hanging structure can be installed on one side of the receiver 10 to adapt to diverse usage environments.

[0027] In one embodiment, a magnetic attachment assembly is provided on one side of the receiver 10. This assembly is used to magnetically attach the receiver 10 to the metal sidewall of an external device. The external device can be a metal chassis, bracket, or audio equipment, allowing for quick mounting and dismounting. By using the magnetic attachment assembly, the ease of installation and flexibility of position adjustment of the receiver 10 are significantly improved. It also ensures that its antenna always faces the optimal signal reception direction, avoiding signal attenuation due to obstruction or angular deviation. Furthermore, it effectively avoids electromagnetic interference sources within the enclosed cabinet, thereby enhancing wireless communication stability and improving the overall anti-interference capability and reliability of the system.

[0028] As another implementation, a mounting structure is provided on one side of the receiver 10. This structure is used to suspend the receiver 10 on an external support structure, thereby achieving flexible and stable deployment. The mounting structure can be a mounting hole, such as a circular, elliptical, or strip-shaped hole, formed on the receiver 10 housing; it can also be a snap-on hook integrated into the side of the receiver; or a foldable metal lug; or a threaded interface compatible with standard brackets. These structures can be used with existing hooks, rails, speaker top mounts, or wall mounts, allowing the receiver 10 to be easily suspended from the back of a speaker, a stage side bracket, the edge of a conference table, or a mobile device trolley.

[0029] Through the design of the mounting structure, users can freely choose the optimal installation height and angle according to the actual environment, ensuring that the built-in fan-shaped antenna 11 is directly facing the usage area of ​​the handheld transmitter microphone 20, optimizing the signal reception path and avoiding obstruction and interference. At the same time, combined with the aforementioned magnetic component, the versatility and adaptability of the receiver 10's installation methods are further enhanced.

[0030] The receiver 10 establishes a wireless communication connection with the handheld transmitter microphone 20 via a built-in fan-shaped antenna 11. This fan-shaped antenna 11 can be structurally optimized to meet specific application requirements. Exemplarily, Figure 2A schematic diagram of a sector antenna 11 according to an embodiment of this application is shown. The sector antenna 11 is a hollowed-out wing-shaped metal plate with a streamlined overall shape. It mainly includes a supporting frame and a radiating metal conductor, wherein the metal conductor is the antenna body, formed on the surface of the insulating frame by printed circuit, etching or metal deposition processes, or directly formed from conductive metal sheet by stamping, bending and hollowing. This radiating structure is usually set inside the receiver 10 housing on the side facing the signal receiving direction, so that the main lobe of the antenna faces the stage or user area to ensure optimal reception coverage. The hollow design reduces the overall weight and material cost while ensuring the electrical performance of the antenna, and reduces wind resistance and electromagnetic reflection interference; while the wing-shaped contour helps to achieve wideband response and good directional gain characteristics, and concentrates to enhance the signal reception capability in the horizontal plane.

[0031] By designing the fan-shaped antenna 11 as a hollowed-out wing-shaped metal plate structure, not only is the space utilization and structural compactness of the antenna improved, but the receiver 10's ability to capture signals in the target direction and its anti-multipath interference performance are also significantly enhanced. At the same time, it takes into account both aesthetics and manufacturability, which is conducive to realizing a high-performance, miniaturized, and highly reliable wireless microphone system.

[0032] Furthermore, there is a notch at the top of the skeleton of the hollowed-out wing-shaped metal plate. This notch is located at the top center of the overall structure of the fan-shaped antenna 11. As part of the antenna's physical structure, it can adjust the local current path and optimize impedance matching without affecting the electrical performance of the main radiation area. At the same time, this notch design helps to reduce the weight of the antenna front end and improve the structural balance.

[0033] From an aesthetic perspective, the notch at the top forms a unique visual identifier, enhancing the antenna's recognizability and modern feel, and making the overall design more technologically advanced and aesthetically pleasing. This notch not only helps improve the antenna's electromagnetic performance to some extent, but also significantly enhances the product's industrial design aesthetics and overall quality, reinforcing the device's high-end image and user acceptance in professional settings.

[0034] As an alternative solution, Figure 3 A schematic diagram of a receiver 10 according to an embodiment of this application is shown.

[0035] In one embodiment, based on the above embodiments, such as Figure 3As shown, the receiver 10 is equipped with an optical fiber audio output interface 13 and a built-in optical fiber audio transmission module 12. The optical fiber audio transmission module 12 is configured to convert analog audio signals into digital optical signals and transmit them to the pre-amplifier audio processing device 30 through the optical fiber audio output interface 13. Specifically, the optical fiber audio transmission module 12 is responsible for first performing analog-to-digital conversion on the analog audio signal from the handheld transmitter microphone 20 after wireless reception and demodulation, and then converting it into a digital optical signal through electro-optical conversion technology. The signal is then transmitted in the form of an optical signal to a mixing console, power amplifier, or recording equipment, etc., via the optical fiber audio output interface 13.

[0036] Because optical signal transmission possesses strong resistance to electromagnetic interference, no ground loop noise, low signal attenuation, and high bandwidth, it can effectively overcome the problems of noise, popping, or signal degradation caused by interference in complex electromagnetic environments such as stage lighting and areas with dense power supply equipment. This not only improves the integrity and fidelity of audio signals during long-distance transmission but also enhances the system's interoperability with professional-grade digital audio equipment, achieving cleaner, more stable, and lower-latency high-quality audio output.

[0037] In one embodiment, based on the above embodiments, such as Figure 3 As shown, the receiver 10 is equipped with an infrared two-way communication module 14, and the handheld transmitter microphone 20 is equipped with a corresponding infrared communication port. It can be understood that the infrared communication port can be set at the tail end or middle of the microphone, etc., to adapt to the signal transmission and reception angles and user holding postures in different human-computer interaction scenarios, so as to ensure stable transmission of infrared signals within the line of sight.

[0038] The infrared two-way communication module 14 not only supports device frequency pairing communication between the handheld transmitter microphone 20 and the receiver 10, but also supports wireless command interaction between an external infrared remote control and the receiver 10. Specifically, users can send control commands to the receiver 10 from a relatively long physical distance using a dedicated infrared remote control, enter its system menu, and complete frequency settings, volume adjustments, and other function parameter configurations, thereby achieving non-contact remote control of the receiver and significantly improving the ease of operation and flexibility of use of the device.

[0039] Meanwhile, by establishing an infrared two-way communication link between the handheld transmitter microphone 20 and the receiver 10, two-way exchange of low-rate data such as device identification, frequency matching request, frequency synchronization, and status feedback can be realized.

[0040] Exemplary, Figure 4 This paper shows a schematic diagram of a handheld transmitter microphone 20 according to an embodiment of this application. Figure 5 This paper shows another structural schematic diagram of the handheld transmitter microphone 20 according to an embodiment of the present application.

[0041] The handheld transmitter microphone 20 has an upper tube 21 and a lower tube 22 arranged coaxially. The lower tube 22 moves axially relative to the upper tube 21 through a sliding mechanism to achieve a telescopic structure design. The top of the lower tube 22 is provided with an infrared communication window 23 corresponding to the infrared communication port. When the microphone is in the normal retracted state, the window is completely blocked by the lower tube 22, which not only prevents unexpected frequency pairing caused by external light or accidental touch, but also effectively blocks dust, sweat and other contaminants from entering the optical interface and protects the communication components.

[0042] When the lower tube 22 is pulled down, the infrared communication window 23 is exposed. When the user needs to perform frequency pairing, they only need to pull the lower tube 22 down to expose the infrared communication window 23 and point it towards the receiver 10. At this time, the infrared communication link is activated, and the system automatically starts the pairing process. Furthermore, the lower tube 22 is connected to an elastic reset element, such as a spring or a spring sheet. When the user applies external force to pull the lower tube 22 down to expose the infrared communication window 23, the elastic reset element deforms and stores elastic potential energy. When the external force applied to the lower tube 22 is removed, the elastic reset element drives the lower tube 22 to automatically reset and re-cover the infrared communication window 23. Specifically, the elastic reset element releases energy, driving the lower tube 22 to automatically retract axially to its initial position, causing the upper tube 21 to re-cover the infrared communication window 23, and resetting the lower tube 22 restores its clean appearance. By linking the activation of the infrared communication function with the mechanical extension and retraction action, an organic combination of on-demand opening of the communication interface and physical protection is achieved.

[0043] In one embodiment, the sliding mechanism is a damping sliding mechanism. This mechanism, through a built-in friction component or fluid damping structure, provides stable and controllable resistance during the axial sliding of the lower tube 22, making the sliding process smooth and less prone to wobbling or free slippage. The damping sliding mechanism not only achieves stepless adjustment and positioning of the telescopic movement but also improves the feel and texture of the operation, providing users with a good force feedback experience when pulling out or retracting the lower tube 22. This effectively enhances the stability and operational precision of the telescopic structure of the handheld transmitter microphone 20.

[0044] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that, in alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0045] In addition, the functional modules or units in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0046] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a smartphone, personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0047] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A wireless microphone system, characterized in that, include: The receiver and the handheld transmitter microphone are included. The receiver is detachably connected to an external device. The receiver has a built-in fan-shaped antenna and establishes a wireless communication connection with the handheld transmitter microphone through the fan-shaped antenna.

2. The wireless microphone system according to claim 1, characterized in that, The fan-shaped antenna is a hollowed-out wing-shaped metal plate.

3. The wireless microphone system according to claim 2, characterized in that, The hollowed-out wing-shaped metal plate has a notch at the top of its frame.

4. The wireless microphone system according to claim 1, characterized in that, A magnetic suction assembly is provided on one side of the receiver, which is used to magnetically attach the receiver to the metal sidewall of the external device.

5. The wireless microphone system according to claim 1, characterized in that, A mounting structure is provided on one side of the receiver.

6. The wireless microphone system according to claim 1, characterized in that, The receiver is equipped with an optical fiber audio output interface and a built-in optical fiber audio transmission module. The optical fiber audio transmission module is configured to convert analog audio signals into digital optical signals and transmit them to the front-end audio processing equipment through the optical fiber audio output interface.

7. The wireless microphone system according to claim 1, characterized in that, The receiver is equipped with an infrared two-way communication module, and the handheld transmitter microphone is equipped with a corresponding infrared communication port.

8. The wireless microphone system according to claim 7, characterized in that, The handheld transmitter microphone has an upper tube and a lower tube arranged coaxially. The lower tube moves axially relative to the upper tube via a sliding mechanism. The top of the lower tube has an infrared communication window corresponding to the infrared communication port. When the lower tube is pulled down, the infrared communication window is exposed.

9. The wireless microphone system according to claim 8, characterized in that, The lower tube is connected to an elastic reset element. When the external force applied to the lower tube is removed, the elastic reset element drives the lower tube to automatically reset and re-block the infrared communication window.

10. The wireless microphone system according to claim 8, characterized in that, The sliding mechanism is a damping sliding mechanism.

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