Multi-mode noise reduction earphone and noise reduction method thereof

Abstract

The invention discloses a multi-mode noise reduction earphone and a noise reduction method thereof, and relates to the technical field of earphones, the earphone comprises a head-mounted assembly, two earmuffs, two rotary mounting structures, a controller and a PTT control box, the head-mounted assembly comprises a head ring part, a neck ring part and a helmet part; the two earmuffs are symmetrically arranged at the two ends of the head-mounted assembly respectively and used for being worn on ears and isolating environmental noise. The two rotary installation structures are installed on the two earmuffs respectively. Each rotary installation structure comprises an installation support, a first limiting column and a second limiting column, wherein the first limiting column and the second limiting column are fixedly connected to the earmuffs. Any one of the head ring part, the neck ring part and the helmet part is detachably connected to a first limiting column and a second limiting column of the rotary mounting structure; the controller is arranged in the earmuff; the PTT control box is arranged in the earmuff, and the PTT control box is electrically connected with the controller. The earphone can be switched to be used in different environment scenes, and has the functions of environment sound interception, active noise reduction, volume adjustment and the like under the condition that wearing comfort is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of earphone technology, and more particularly to a multi-mode noise reduction earphone and a noise reduction method thereof. Background Art

[0002] Among various types of headphones, on-ear headphones have become the preferred type of headphones by users due to their comfortable wearing feeling and excellent sound quality.

[0003] Since users have different requirements for wearing methods and noise reduction effects in different occasions, most of the existing noise-cancelling headphones are head-mounted earmuff-type noise-cancelling headphones, and the headband and earmuffs of the noise-cancelling headphones are fixed together and cannot be separated. Therefore, they cannot be worn in some special scenarios where a helmet is required for protection. The head-mounted function of this type of headphones is single, and the head-mounted components cannot be adjusted according to different occasions and environments. The adaptability is poor, which limits the scope of use of the noise-cancelling headphones.

[0004] In addition, existing noise-cancelling headphones have functions such as active noise reduction, passive noise reduction, ambient sound monitoring, voice transmission noise reduction, and bone conduction voice transmission, but the headphones currently on sale only have some of the above functions, so consumers need to wear multiple headphones of different shapes to meet the needs of different usage environments.

[0005] Finally, noise-canceling headphones do not have a sound-isolating effect. When encountering a noisy external environment, the volume needs to be increased to cover up the surrounding noise. If the headphones are used at a high volume for a long time, it will cause harm to the user. Based on this, noise-canceling technology is gradually applied to headphones. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a multi-mode noise reduction headset and a noise reduction method thereof, so as to solve the technical problems that the existing headset has a single structure and form, is not convenient for switching scenes, and has a single function.

[0007] To achieve the above objectives, a first objective of the present invention is to provide a multi-mode noise reduction headset, comprising: A headgear assembly, including a head ring component, a neck ring component and a helmet component; Two earmuffs are symmetrically arranged at two ends of the head-mounted assembly, and are used to be worn on the ears and isolate environmental noise; Two rotating mounting structures are respectively mounted on the two earmuffs, the rotating mounting structures include a mounting bracket spanning both sides of the outer side of the earmuff and a first limiting column and a second limiting column respectively inserted and connected to both ends of the mounting bracket, the first limiting column and the second limiting column are fixedly connected to the earmuff at one side close to the earmuff, and a ball joint mounting groove is also provided in the middle of the mounting bracket; Any one of the head ring component, the neck ring component and the helmet component is detachably connected to the first limiting column and the second limiting column of the rotating mounting structure; A controller, disposed in the earmuff; The PTT control box is arranged in the earmuff, and the PTT control box is electrically connected to the controller.

[0008] Preferably, it also includes: A microphone, arranged on one of the earmuffs, for converting the acoustic signal in the speech communication into an electrical signal; Two receivers, respectively disposed in the inner cavities of the two earmuffs, for converting the electrical signals in the speech communication into acoustic signals; The conductor cable is arranged on the other earmuff and is used for electrical connection with an external electrical appliance.

[0009] Preferably, the headband component includes a headband, two U-shaped brackets inserted through the ends of the headband, and a mounting frame rotatably connected to the inner side of the opening corresponding to the U-shaped bracket, the two ends of the mounting frame are respectively suitable for being sleeved on the first limiting column and the second limiting column, and the mounting frame and the U-shaped bracket are suitable for respectively spanning across the two sides of the earmuff.

[0010] Preferably, the neck ring component includes a neck ring band, two U-shaped iron rings inserted through the ends of the neck ring band, and clamping blocks sleeved on both ends of the U-shaped iron rings, and the clamping blocks are suitable for connecting to the outer surface of the mounting bracket.

[0011] Preferably, the helmet component includes a helmet and two switching arms, and mounting ridges are opened on both sides of the helmet. One end of each switching arm is hinged in the ball joint mounting groove of the mounting bracket, and the other end is slidably connected to the clamping block on the corresponding side.

[0012] Preferably, the switching arm includes an arm frame, a support arm slidably arranged at one end of the arm frame, and a slide groove structure connected to the support arm at an end away from the arm frame. A spherical structure is provided at the end of the arm frame away from the slide groove structure, and the spherical structure is suitable for being rotatably engaged in the ball joint mounting groove, and the slide groove structure is suitable for being slidably connected to the mounting protrusion.

[0013] Preferably, the PTT control box includes a control box body, a power button and a volume control button installed on the earmuff, and a PTT button, a listening button and a noise reduction button installed on the control box body. The control box body is electrically connected to the controller through the wire cable, and the power button, the volume control button, the PTT button, the listening button and the noise reduction button are all electrically connected to the controller.

[0014] Preferably, the earmuff includes a contoured shell, an earphone speaker arranged in the contoured shell, a cover plate arranged on one side of the opening of the contoured shell, and a foam component fixedly connected to the cover plate on a side away from the contoured shell, and the foam component is suitable for accommodating a human ear, and the rotating mounting structure is provided on a side of the contoured shell away from the foam component.

[0015] Preferably, the receiver comprises: A feedback microphone, embedded on the cover plate and located inside the foam component, the feedback microphone is connected to the earphone speaker, so that the feedback microphone collects the sound inside the space between the earphone and the human ear, and transmits it to the controller through the earphone speaker; The environmental microphone is embedded on the side wall of the outer contour shell, and the environmental microphone is electrically connected to the controller.

[0016] A second object of the present invention is to provide a noise reduction method for a multi-mode noise reduction headset, which reduces noise for the multi-mode noise reduction headset as described above, and the noise reduction method comprises: Step S 100 : The feedback microphone picks up the sound signal inside the human ear and converts it into a first electronic signal, and transmits the first electronic signal to the controller for processing; Step S 200 : The environmental microphone collects the environmental noise outside the headset and converts it into a second electronic signal, and transmits the second electronic signal to the controller for amplification and filtering to obtain a third electronic signal that is sensitive to noise; Step S 300 : The controller compares the first electronic signal and the third electronic signal, decouples and restores to calculate the phase and amplitude adjustment coefficients, and generates a voice signal with a reverse phase; Step S 400 : The voice signal is restored and pronounced through the headphone speaker and the microphone.

[0017] Compared with the prior art, the present invention has the following advantages and effects: 1. The multi-mode noise-cancelling headset in the present invention is composed of a head-mounted assembly, two earmuffs, two rotating mounting structures, a controller and a PTT control box, wherein the head-mounted assembly is composed of a head ring component, a neck ring component and a helmet component. The head ring component, as the main supporting structure of the headset, can adapt to different head shapes and includes an adjustable telescopic or rotating structure to adapt to the head sizes of different users; the neck ring component is used to share the weight of the headset and reduce the pressure on the head, while providing additional stability, which contributes to comfort when worn for a long time and makes the headset easier to store and carry when not in use; the helmet component is used to completely cover the ears. In some special scenarios where a protective mask needs to be worn and the mouth cannot be exposed, the user cannot wear the head-mounted noise-cancelling headset to send voice to the outside. At this time, the noise-cancelling headset with a helmet component can realize the call function. In order to reduce the intrusion of external noise, the two earmuffs are symmetrically arranged at the two ends of the head-mounted assembly, which are used to be worn on the ears and isolate environmental noise, and provide basic passive noise reduction effects through physical isolation. The two rotating mounting structures are used for mounting and supporting the earmuffs and the human head to adjust the fit between the earmuffs and the head, and optimize the wearing comfort and noise reduction effect. The rotating mounting structure consists of a mounting bracket, a first limiting column and a second limiting column, wherein the mounting bracket spans across the outer sides of the earmuff, the first limiting column and the second limiting column are respectively inserted and connected to the two ends of the mounting bracket, and the first limiting column and the second limiting column are fixedly connected to the earmuff on one side close to the earmuff, and a ball joint mounting groove is also provided in the middle of the mounting bracket, so that it can be fine-tuned according to the user's head shape and wearing habits, thereby improving the personalization and comfort of wearing. In addition, the ball joint mounting groove allows the earmuffs to rotate at multiple angles, further adapting to the ear shapes and wearing preferences of different users.

[0018] 2. Any one of the headband component, neckband component and helmet component in the present invention can be detachably connected to the first limiting column and the second limiting column of the rotating mounting structure. The first limiting column and the second limiting column play a key positioning role in the rotating mounting structure, which can ensure the stability and accuracy of the earmuffs when rotating, and also provide a stable connection point for the headband component, the neckband component and the helmet component. By designing the headband component, the neckband component and the helmet component to be detachably connected to the first limiting column and the second limiting column of the rotating mounting structure, a modular design is achieved, and each component can be quickly replaced or upgraded as needed, thereby improving the flexibility and service life of the product. For example, users can easily replace various components of the headset according to personal preferences or specific needs, such as replacing headband components with different materials or styles, or replacing neckband components according to different seasons, thereby improving user experience and satisfaction. In addition, the detachable design makes the maintenance and repair of the headset more convenient and quick. For example, when a component is damaged, the user can replace the component alone without replacing the entire headset, thereby reducing maintenance costs.

[0019] 3. The controller in the present invention is integrated in the earmuff, which contributes to the simplicity and aesthetics of the overall design of the headset, while also reducing external control components and reducing the risk of external damage; in addition, the user can directly control operations through the controller on the earmuff, such as adjusting the volume, answering calls, etc., which improves the convenience of use.

[0020] 4. The PTT control box in the present invention is arranged in the earmuff, and the PTT control box is electrically connected to the controller, which allows the user to control the sending and receiving status of the communication device by pressing the PTT button on the one hand; on the other hand, this can not only realize the wireless PTT control mode, but also make the PTT control button flexibly moveable and adapt to various installation and fixing requirements, effectively improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the assembly structure of the multi-mode noise reduction headset in an embodiment of the present invention; Figure 2 Schematic diagram of the exploded structure of the multi-mode noise reduction headset in an embodiment of the present invention; Figure 3 is a schematic diagram of the structure of an earmuff in an embodiment of the present invention; Figure 4 Schematic diagram of the assembly structure of the headband component and the earmuffs in an embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the headband component in an embodiment of the present invention; Figure 6 Schematic diagram of the assembly structure of the neck ring component and the earmuff in an embodiment of the present invention; Figure 7 Schematic diagram of the assembly structure of the helmet component and the earmuffs in an embodiment of the present invention; Figure 8 It is a schematic diagram of the assembly structure of the switching arm and the earmuff in an embodiment of the present invention; Fig. 9 It is a structural schematic diagram of a switching arm in an embodiment of the present invention; Fig.10 Schematic diagram of the structure of the PTT control box in an embodiment of the present invention.

[0022] Fig.11 Schematic diagram of the process of the noise reduction method of the multi-mode noise reduction headset in an embodiment of the present invention.

[0023] Description of reference numerals: 1-Headband assembly; 11-head ring component; 111-head ring belt; 112-U-shaped bracket; 113-mounting bracket; 12-neck ring component; 121-neck ring belt; 122-U-shaped iron ring; 123-clamping block; 13-helmet component; 131-helmet; 1311-mounting convex strip; 132-switching arm; 1321-arm frame; 1322-support arm; 1323-slideway structure; 2-Earmuffs; 21-contact shell; 22-earphone speaker; 23-cover plate; 24-foam component; 3-rotational mounting structure; 31-mounting bracket; 311-ball joint mounting slot; 32-first limiting column; 33-second limiting column; 4- Controller; 5-PTT control box; 51-control box body; 52-power button; 53-volume control button; 54-PTT button; 55-listen button; 56-noise reduction button; 57-external connection plug; 6-transmitter; 7-receiver; 71-feedback microphone; 72-ambient microphone; 8-conductor cable. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-10 As shown, an embodiment of the present invention provides a multi-mode noise reduction headset, which includes a head-mounted component 1, two earmuffs 2, two rotating mounting structures 3, a controller 4 and a PTT control box 5, wherein: In order to enhance the wearing experience of the user and ensure that the earphones remain stable during various activities, as a preferred method of this embodiment, the head-mounted assembly 1 includes a headband component 11, a neckband component 12 and a helmet component 13, wherein the headband component 11 serves as the main supporting structure of the earphone. The headband component 11 in this embodiment is designed to adapt to different head shapes and includes an adjustable telescopic or rotating structure to adapt to the head sizes of different users; the neckband component 12 is used to share the weight of the earphone, reduce the pressure on the head, and provide additional stability. This wearing method contributes to comfort when worn for a long time, and makes the earphones easier to store and carry when not in use; the helmet component 13 is used to completely cover the ears. In some special scenarios where a protective mask needs to be worn and the mouth cannot be exposed, the user cannot wear the head-mounted noise-cancelling earphones to send voice to the outside. At this time, the noise-cancelling earphones with the helmet component 13 can realize the call function.

[0026] In order to reduce the intrusion of external noise, the two earmuffs 2 are symmetrically arranged at the two ends of the head-mounted assembly 1, which are used to be worn on the ears and isolate the environmental noise, and provide basic passive noise reduction effect through physical isolation. The two rotating mounting structures 3 are respectively installed on the two earmuffs 2, which are used for mounting and supporting the earmuffs 2 and the human head, so as to adjust the fit between the earmuffs and the head and optimize the wearing comfort and noise reduction effect.

[0027] Preferably, the rotating mounting structure 3 in this embodiment includes a mounting bracket 31, a first limiting column 32 and a second limiting column 33, wherein the mounting bracket 31 spans across the outer sides of the earmuff 2, the first limiting column 32 and the second limiting column 33 are respectively inserted and connected to the two ends of the mounting bracket 31, and the first limiting column 32 and the second limiting column 33 are fixedly connected to the earmuff 2 on one side close to the earmuff 2, and a ball joint mounting groove 311 is also provided in the middle of the mounting bracket 31, so that fine-tuning can be performed according to the user's head shape and wearing habits, thereby improving the personalization and comfort of wearing. In addition, the ball joint mounting groove 311 allows the earmuff to rotate at multiple angles, further adapting to the ear shapes and wearing preferences of different users.

[0028] Any one of the headband component 11, the neckband component 12 and the helmet component 13 is detachably connected to the first limiting column 32 and the second limiting column 33 of the rotating mounting structure 3. The first limiting column 32 and the second limiting column 33 play a key positioning role in the rotating mounting structure 3, which can ensure the stability and accuracy of the earmuffs 2 when rotating, and also provide a stable connection point for the headband component 11, the neckband component 12 and the helmet component 13. The advantage of this design is that by designing the headband component 11, the neckband component 12 and the helmet component 13 to be detachably connected to the first limiting column 32 and the second limiting column 33 of the rotating mounting structure 3, a modular design is achieved, and each component is allowed to be quickly replaced or upgraded as needed, thereby improving the flexibility and service life of the product. For example, users can easily replace various components of the headset according to personal preferences or specific needs, such as replacing the headband component 11 with a different material or style, or replacing the neckband component 12 according to different seasons, thereby improving user experience and satisfaction.

[0029] In addition, the detachable design makes the maintenance and repair of the headset more convenient and quick. For example, when a component (headband component 11, neckband component 12, helmet component 13, etc.) is damaged, the user can replace the component alone without replacing the entire headset, thereby reducing maintenance costs.

[0030] The controller 4 is integrated in the earmuff 2, which contributes to the simplicity and aesthetics of the overall design of the headset, while also reducing external control elements and reducing the risk of external damage; in addition, the user can directly perform control operations through the controller 4 on the earmuff 2, such as adjusting the volume, answering calls, etc., which improves the convenience of use.

[0031] The PTT control box 5 is arranged in the earmuff 2, and the PTT control box 5 is electrically connected to the controller 4, which allows the user to control the sending and receiving status of the communication device by pressing the PTT button on the one hand; on the other hand, this can not only realize the wireless PTT control method, but also make the PTT control button flexibly moveable and adapt to various installation and fixing requirements, effectively improving the convenience of operation.

[0032] For further information, see Figure 1 , 2 As shown, the multi-mode noise reduction headset also includes a microphone 6, two receivers 7 and a wire cable 8, wherein: A microphone 6 is provided on one of the earmuffs 2 for converting the acoustic signal in speech communication into an electrical signal; two receivers 7 are respectively provided in the inner cavities of the two earmuffs 2 for converting the electrical signal in speech communication into acoustic signal; a wire cable 8 is provided on the other earmuff 2 for electrically connecting to an external electrical appliance.

[0033] Specifically in this embodiment, the sound waves captured by the transmitter 6 are converted into electrical signals through the microphone inside it, and this process involves the capture of sound waves and the generation of electrical signals; after receiving the electrical signals, the receiver 7 converts them into sound waves, and this process involves the reception of electrical signals and the generation of sound waves. The structure of the receiver 7 is also equipped with front and rear sound cavities and acoustic damping to adjust the audio characteristics; the wire cable 8 ensures the transmission of electrical signals from the transmitter 6 to the external device and from the external device to the receiver 7. This process requires the cable to have good conductivity and anti-interference properties to ensure clear and stable transmission of signals.

[0034] For further information, see Figure 4 , 5 As shown, the headband component 11 includes a headband 111, two U-shaped brackets 112 and a mounting bracket 113, wherein: Two U-shaped brackets 112 are passed through the ends of the headband 111, and the mounting bracket 113 is rotatably connected to the inner side of the opening of the corresponding U-shaped bracket 112. The two ends of the mounting bracket 113 are respectively suitable for being sleeved on the first limiting column 32 and the second limiting column 33, and the mounting bracket 113 and the U-shaped bracket 112 are respectively suitable for spanning the two sides of the earmuff 2.

[0035] Specifically in this embodiment, the headband component 11 is composed of a headband strap 111, two U-shaped brackets 112 and a mounting frame 113, which provides a stable support structure for fixing the earmuffs 2, while allowing the earmuffs 2 to be flexibly adjusted on both sides of the head to adapt to the head shapes and wearing habits of different users, thereby improving wearing comfort.

[0036] In addition, with the provision of the U-shaped bracket 112 and the mounting bracket 113, the user can easily adjust the position of the earmuff 2 as needed, thereby achieving quick wearing and removal, and improving the convenience of use; the mounting bracket 113 allows the earmuff 2 to rotate relative to the headband 111 to adapt to the head shape and wearing angle of different users, and is convenient for installation on the first limiting column 32 and the second limiting column 33.

[0037] For further information, see Figure 4 , 5 As shown, the neck ring component 12 includes a neck ring belt 121, two U-shaped iron rings 122 and a clamping block 123, wherein: Two U-shaped iron rings 122 are passed through the ends of the neck ring 121 , and the clamping blocks 123 are sleeved on both ends of the U-shaped iron ring 122 , and the clamping blocks 123 are suitable for being connected to the outer surface of the mounting bracket 31 .

[0038] Therefore, the neck ring component 12 not only provides a stable support structure through the arrangement of the neck ring band 121, two U-shaped iron rings 122 and the clamping block 123, but also allows the neck ring band 121 to be flexibly adjusted on the neck to adapt to the neck circumference and wearing habits of different users, thereby improving the wearing comfort and stability. Two U-shaped iron rings 122 are passed through the ends of the neck ring band 121. This design allows the neck ring band 121 to be compactly folded when not in use and easily unfolded when in use, providing a flexible adjustment space; the clamping block 123 is suitable for connecting to the outer surface of the mounting bracket 31. This layout provides better balance and support, so that the weight of the earphone is evenly distributed, reducing the pressure on the neck.

[0039] For further information, see Figure 4 , 5 As shown, the helmet component 13 includes a helmet 131 and two switching arms 132. Mounting ridges 1311 are provided on both sides of the helmet 131. One end of each switching arm 132 is hinged in a ball joint mounting groove 311 of the mounting bracket 31, and the other end is slidably connected to the clamping block 123 on the corresponding side.

[0040] Specifically, one end of the switching arm 132 is hinged in the ball joint mounting groove 311 of the mounting bracket 31. This hinged design allows a certain degree of rotation, while the sliding connection at the other end provides the ability to slide along the clamping block 123. This design combines the two modes of movement, rotation and sliding, so that the helmet component 13 can adapt to different head shapes and movement requirements; mounting ridges 1311 are opened on both sides of the helmet 131, and the ridges 1311 can be connected to the switching arm 132 or other components, providing a stable fixing point to ensure the stability of the helmet during wearing.

[0041] Therefore, by combining the hinged and sliding connections, not only the stability and durability of the earphones are improved, but also the wearing comfort and assembly flexibility are optimized, making the earphones more adaptable to changing usage environments and user needs.

[0042] For further information, see Figure 8 , 9 As shown, in order to enable the switching arm 132 to work stably at different positions and angles and adapt to different usage scenarios and requirements, the switching arm 132 in this embodiment includes an arm frame 1321, a support arm 1322 and a slide groove structure 1323, wherein: The support arm 1322 is slidably disposed at one end of the arm frame 1321, allowing the support arm 1322 to slide freely on the arm frame 1321 to adapt to different position requirements. The slide groove structure 1323 is connected to the end of the support arm 1322 away from the arm frame 1321, so that the support arm 1322 can slide along the slide groove structure 1323 to achieve precise position adjustment. The end of the arm frame 1321 away from the slide groove structure 1323 is provided with a spherical structure, and the spherical structure is suitable for rotating and clamping in the ball joint mounting groove 311. This spherical structure is suitable for rotating and clamping in the ball joint mounting groove 311, thereby allowing the switching arm 132 to rotate freely within a certain angle range, providing more operational freedom. The slide groove structure 1323 is suitable for sliding connection on the mounting ridge 1311 to achieve quick connection and release, thereby improving the efficiency and convenience of operation.

[0043] It can be understood that the configuration of the switching arm 132 also allows for quick replacement and maintenance. Through quick replacement, the replacement time can be significantly reduced and the overall work efficiency can be improved.

[0044] For further information, see Figure 1 , 3 As shown in FIG. 10 , the PTT control box 5 includes a control box body 51, a power button 52, a volume control button 53, a PTT button 54, a listening button 55 and a noise reduction button 56, wherein: The power button 52 and the volume control button 53 are installed on the earmuff 2, and the PTT button 54, the listening button 55 and the noise reduction button 56 are installed on the control box body 51. The control box body 51 is electrically connected to the controller 4 through the wire cable 8, and the power button 52, the volume control button 53, the PTT button 54, the listening button 55 and the noise reduction button 56 are all electrically connected to the controller 4.

[0045] Specifically in this embodiment, the control box body 51 integrates multiple function buttons, including a PTT button 54, a listening button 55 and a noise reduction button 56, so that the user can conveniently control these functions in a wired manner, thereby improving the convenience of operation. The power button 52 and the volume control button 53 are installed on the earmuff 2 and are electrically connected to the controller 4, so that they can be controlled wirelessly.

[0046] An external connection plug 57 is also provided on a side of the control box body 51 away from the earmuff 2 for connecting with other external components.

[0047] It is understandable that all buttons are electrically connected to the controller 4, so that the user can control the headset regardless of whether the user operates on the control box body 51 or the earmuff 2, which increases the diversity of operations. In addition, the power button 52 and the volume control button 53 are placed on the earmuff 2. On the one hand, considering that these operations are most frequent when the user wears the headset, placing them on the earmuff 2 can reduce the number of times the user needs to move his hand to control the box body 51, thereby improving the user experience.

[0048] For further information, see Figure 1 , 2 As shown, the earmuff 2 includes a contoured shell 21, an earphone speaker 22, a cover plate 23 and a foam component 24, wherein: The earphone speaker 22 is arranged in the contoured shell 21, the cover 23 is covered on the opening side of the contoured shell 21, the foam component 24 is fixedly connected to the side of the cover 23 away from the contoured shell 21, and the foam component 24 is suitable for accommodating a human ear, and a rotating mounting structure 3 is provided on the side of the contoured shell 21 away from the foam component 24.

[0049] Specifically in this embodiment, the design of the earmuff 2 takes ergonomics into consideration, and in particular, the foam component 24 is suitable for accommodating human ears, so that the earmuff 2 can better adapt to the ear shapes of different users and provide a comfortable wearing experience. The contoured shell 21 provides the structural basis of the earmuff 2, the earphone speaker 22 is arranged therein, and the cover plate 23 is arranged on one side of the opening. Such a structural design helps to protect the earphone speaker and prevent the intrusion of dust and moisture, while providing stable support. The earphone speaker 22 is arranged in the contoured shell 21. This design helps to concentrate the sound, reduce the leakage of the sound, improve the directness and clarity of the sound, and thus improve the sound quality. The side of the contoured shell 21 away from the foam component 24 is provided with a rotating mounting structure 3, so that the earmuff 2 can be rotated and adjusted at a certain angle relative to the user's head to adapt to the head shape and wearing habits of different users.

[0050] For further information, see Figure 2 As shown, the receiver 7 includes a feedback microphone 71 and an ambient microphone 72, wherein: The feedback microphone 71 is embedded in the cover plate 23 and is located inside the foam component 24. This arrangement enables the feedback microphone 71 to directly collect the sound inside the space between the earphone and the human ear, and transmit the sound to the controller 4 through the earphone speaker 22, so as to realize real-time monitoring and feedback control of the sound, and reduce or eliminate the recovery and distortion of the sound; the earphone speaker 22 is connected to the internal space formed by the contoured shell 21 and the cover plate 23, which helps to concentrate the sound, reduce the leakage of the sound, improve the directness and clarity of the sound, and thus improve the sound quality; the earphone speaker 22 is connected to the feedback microphone 71, so that the feedback microphone 71 collects the sound inside the space between the earphone and the human ear, and transmits it to the controller 4 through the earphone speaker 22; the environmental microphone 72 is embedded in the side wall of the outer contoured shell 21, and the environmental microphone 72 is electrically connected to the controller 4, so that the environmental microphone 72 can capture the sound of the external environment, and the controller 4 can use noise reduction technology to reduce background noise and improve the clarity of the call, which can help users who use the device in a noisy environment perceive the surrounding environment and improve the security and efficiency of communication.

[0051] In this embodiment, the receiver 7 is composed of a feedback microphone 71 and an ambient microphone 72. This multi-microphone system can provide more comprehensive sound capture and enhance the flexibility and accuracy of sound processing.

[0052] See also Fig.11 As shown, an embodiment of the present invention further provides a noise reduction method for a multi-mode noise reduction headset, which performs noise reduction on the multi-mode noise reduction headset described above, and the noise reduction method includes: Step S 100 : The feedback microphone 71 picks up the sound signal inside the human ear and converts it into a first electronic signal, and transmits the first electronic signal to the controller 4 for processing.

[0053] This step is fundamental to the noise reduction process, as the feedback microphone 71 is able to capture the sounds inside the ear, including the user's voice and possible echoes.

[0054] Step S 200 : The environmental microphone 72 collects the environmental noise outside the earphone and converts it into a second electronic signal, and transmits the second electronic signal to the controller 4 for amplification and filtering to obtain a third electronic signal that is sensitive to noise.

[0055] This step enhances the characteristics of the ambient noise through amplification and filtering, providing an accurate noise signal for subsequent noise reduction processing.

[0056] Step S 300 : The controller 4 compares the first electronic signal and the third electronic signal, decouples and restores to calculate the phase and amplitude adjustment coefficients, and generates a voice signal with a reverse phase; Through precise signal processing technology, the controller 4 can identify and calculate the phase and amplitude adjustment coefficients required to eliminate noise, thereby generating a reverse phase speech signal that can cancel the noise.

[0057] Step S 400 : The voice signal is restored and pronounced through the earphone speaker 22 and the microphone 6.

[0058] This step achieves noise elimination by playing a voice signal with a reverse phase, which cancels out the original noise signal and achieves the effect of noise reduction.

[0059] As a result, by eliminating environmental noise, the clarity of voice is improved, and the quality of calls and audio playback is improved; users can enjoy a clear audio experience even in noisy environments, enhancing the user experience of the product; by reducing noise exposure, it helps to protect the user's hearing health; combined with advanced signal processing technology, effective noise elimination is achieved, improving the performance and user experience of audio equipment in various environments.

[0060] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A multi-mode noise reduction headset, characterized in that: include: A headgear assembly (1) comprising a head ring component (11), a neck ring component (12) and a helmet component (13); Two earmuffs (2) are symmetrically arranged at two ends of the head-mounted assembly (1) and are used to be worn on the ears and isolate environmental noise; Two rotating mounting structures (3) are respectively mounted on the two earmuffs (2), the rotating mounting structures (3) comprising a mounting bracket (31) spanning across two sides of the outside of the earmuffs (2), and a first limiting column (32) and a second limiting column (33) respectively inserted and connected to two ends of the mounting bracket (31), the first limiting column (32) and the second limiting column (33) being fixedly connected to the earmuffs (2) at one side close to the earmuffs (2), and a ball joint mounting groove (311) is also provided in the middle of the mounting bracket (31); Any one of the head ring component (11), the neck ring component (12) and the helmet component (13) is detachably connected to the first limiting column (32) and the second limiting column (33) of the rotating mounting structure (3); A controller (4) disposed inside the earmuff (2); A PTT control box (5) is arranged in the earmuff (2), and the PTT control box (5) is electrically connected to the controller (4).

2. The multi-mode noise-cancelling headset according to claim 1, characterized in that: Also includes: A microphone (6) is arranged on one of the earmuffs (2) and is used to convert the acoustic signal in the language communication into an electrical signal; Two receivers (7), respectively disposed in the inner cavities of the two earmuffs (2), and used for converting electrical signals in language communication into acoustic signals; A conductor cable (8) is arranged on the other earmuff (2) and is used for electrical connection with an external electrical appliance.

3. The multi-mode noise-cancelling headset according to claim 2, characterized in that: The headband component (11) comprises a headband (111), two U-shaped brackets (112) inserted through the ends of the headband (111), and a mounting frame (113) rotatably connected to the inner side of an opening corresponding to the U-shaped bracket (112), the two ends of the mounting frame (113) being respectively adapted to be sleeved on the first limiting column (32) and the second limiting column (33), and the mounting frame (113) and the U-shaped bracket (112) being respectively adapted to span across the two sides of the earmuff (2).

4. The multi-mode noise-cancelling headset according to claim 3, characterized in that: The neck ring component (12) comprises a neck ring band (121), two U-shaped iron rings (122) inserted through the ends of the neck ring band (121), and a clamping block (123) sleeved on both ends of the U-shaped iron ring (122), and the clamping block (123) is suitable for being connected to the outer surface of the mounting bracket (31).

5. The multi-mode noise-cancelling headset according to claim 4, characterized in that: The helmet component (13) comprises a helmet (131) and two switching arms (132). Both sides of the helmet (131) are provided with mounting convex strips (1311). One end of each of the switching arms (132) is hinged in a ball joint mounting groove (311) of the mounting bracket (31), and the other end is slidably connected to the clamping block (123) on the corresponding side.

6. The multi-mode noise-cancelling headset according to claim 5, characterized in that: The switching arm (132) comprises an arm frame (1321), a support arm (1322) slidably arranged at one end of the arm frame (1321), and a slide groove structure (1323) connected to an end of the support arm (1322) away from the arm frame (1321); a spherical structure is provided at one end of the arm frame (1321) away from the slide groove structure (1323), and the spherical structure is suitable for being rotatably engaged in the ball joint mounting groove (311); and the slide groove structure (1323) is suitable for being slidably connected to the mounting convex strip (1311).

7. The multi-mode noise-cancelling headset according to claim 5, characterized in that: The PTT control box (5) comprises a control box body (51), a power button (52) and a volume control button (53) mounted on the earmuff (2), and a PTT button (54), a listening button (55) and a noise reduction button (56) mounted on the control box body (51); the control box body (51) is electrically connected to the controller (4) via the wire cable (8), and the power button (52), the volume control button (53), the PTT button (54), the listening button (55) and the noise reduction button (56) are all electrically connected to the controller (4).

8. The multi-mode noise-cancelling headset according to claim 5, characterized in that: The earmuff (2) comprises a contoured shell (21), an earphone speaker (22) arranged in the contoured shell (21), a cover plate (23) arranged on one side of an opening of the contoured shell (21), and a foam component (24) fixedly connected to a side of the cover plate (23) away from the contoured shell (21), wherein the foam component (24) is suitable for accommodating a human ear, and the rotating mounting structure (3) is provided on a side of the contoured shell (21) away from the foam component (24).

9. The multi-mode noise-cancelling headset according to claim 8, characterized in that: The receiver (7) comprises: a feedback microphone (71), embedded in the cover plate (23) and located inside the foam component (24), the feedback microphone (71) being connected to the headphone speaker (22) so that the feedback microphone (71) collects sound inside the space between the headphone and the human ear, and transmits the sound to the controller (4) via the headphone speaker (22); An environmental microphone (72) is embedded in the side wall of the contoured housing (21), and the environmental microphone (72) is electrically connected to the controller (4).

10. A noise reduction method for a multi-mode noise reduction headset, based on the multi-mode noise reduction headset according to claim 9, characterized in that: The noise reduction method comprises: Step S 100 : The feedback microphone (71) picks up the sound signal inside the human ear and converts it into a first electronic signal, and transmits the first electronic signal to the controller (4) for processing; Step S 200 : The environmental microphone (72) collects environmental noise outside the earphone and converts it into a second electronic signal, and transmits the second electronic signal to the controller (4) for amplification and filtering to obtain a third electronic signal that is sensitive to noise; Step S 300 : The controller (4) compares the first electronic signal and the third electronic signal, decouples and restores to calculate the phase and amplitude adjustment coefficients, and generates a speech signal with a reverse phase; Step S 400 : The voice signal is restored and pronounced through the earphone speaker (22) and the microphone (6).

Images