WO2017197871A1 - 低噪音骨传导助听器 - Google Patents

低噪音骨传导助听器 Download PDF

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Publication number
WO2017197871A1
WO2017197871A1 PCT/CN2016/108816 CN2016108816W WO2017197871A1 WO 2017197871 A1 WO2017197871 A1 WO 2017197871A1 CN 2016108816 W CN2016108816 W CN 2016108816W WO 2017197871 A1 WO2017197871 A1 WO 2017197871A1
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Prior art keywords
signal
noise
bone conduction
hearing aid
low
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PCT/CN2016/108816
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English (en)
French (fr)
Inventor
张贯京
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深圳市易特科信息技术有限公司
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Publication of WO2017197871A1 publication Critical patent/WO2017197871A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception

Definitions

  • the present invention relates to the field of medical devices, and in particular to a low-noise bone conduction hearing aid.
  • Sound waves are present in the air as intangible energy, collected through the ear shell, transmitted to the outer ear, passed through the middle ear to the inner ear, and finally transmitted to the brain so that the user can hear the outside world. Therefore, when there are lesions in any part of the outer ear, middle ear, inner auditory nerve and brain auditory center, it will cause hearing loss, and even form deafness and loss of hearing. Once hearing loss is found, the patient needs to wear a hearing aid as soon as possible to protect the residual hearing.
  • the hearing aid is a micro-small sound reinforcement device that amplifies the external sound to the extent that the hearing loss patient needs, and uses the patient's residual hearing compensation to reduce the hearing, so that the patient can hear the same sound as the normal person. The most effective tool for improving your hearing.
  • hearing aids appearing on the market mainly include microphones, amplifiers, earpieces, power supplies and the like.
  • the microphone receives the external acoustic signal and converts it into an electrical signal, and the amplifier amplifies the electrical signal, and then converts the amplified electrical signal into an acoustic signal through the earpiece to be sent to the ear canal of the user, so that the user can hear the outside world.
  • hearing aids currently do not recognize noise, reduce or eliminate noise. Therefore, when there is noise such as a car horn, the noise may interfere with the sound wave signal generated by the hearing aid, so that the sound wave signal emitted by the hearing aid is greatly deviated from the effective sound, causing the voice and distortion of the sound heard by the patient.
  • the main object of the present invention is to provide a low-noise bone conduction hearing aid, which aims to solve the problem that the existing hearing aid cannot separate noise from outside sound and eliminate noise.
  • the present invention provides a low-noise bone conduction hearing aid, comprising a head-mounted bracket, and two ends of the head-mounted bracket are provided with an earpiece, and each earpiece is provided with a microphone and a bone conduction vibration.
  • the head mount includes a signal coupler, a noise canceling device, a signal amplifier, and a signal distribution
  • the noise canceling device includes a noise separator, a signal generator, and a signal mixer, wherein:
  • Each of the microphones is coupled to the signal coupler for receiving an external sound signal and converting the sound signal into an audio signal;
  • the signal coupler is connected to the noise separator, and is configured to signal-couple the audio signal output by each of the microphones to obtain a coupled signal;
  • the noise separator is coupled to the signal mixer for separating a noise signal and an acoustic wave signal from the signal coupling, and outputting the noise signal and the acoustic wave signal to the signal mixer;
  • the signal generator is coupled to the signal mixer for generating an inverted signal having the same amplitude and opposite phase as the noise signal, and outputting the inverted signal to the signal mixer;
  • the signal mixer is coupled to the signal amplifier for canceling the noise signal and the inverted signal, and outputting the sound wave signal to the signal amplifier;
  • the signal amplifier is connected to the signal distributor for amplifying the sound wave signal and outputting the amplified sound wave signal to the signal distributor;
  • the signal distributor is coupled to each of the bone conduction vibrators for distributing the amplified acoustic wave signals to each of the bone conduction vibrators;
  • Each of the bone conduction vibrators is configured to generate a vibration signal according to the amplified acoustic wave signal, and transmit the vibration signal to the human auditory nerve through the human brain bone to form an auditory sense.
  • the head mount is provided as a sheet structure for wearing on the top of the human body, or a sheet structure for clamping behind the head of the human body.
  • the earpiece has a concave structure.
  • the bone conduction vibrator has a protrusion shape and is disposed on an inner surface of the concave surface of the earpiece.
  • the outer surface of the concave surface of the earpiece is provided with a volume adjustment knob, and the volume adjustment knob is connected to the bone conduction vibrator.
  • the microphone is disposed at an upper portion of the concave body of the earpiece.
  • connection between the head mount and the earpiece is provided with a telescopic component.
  • the head mount is further provided with a power supply device, and the power supply device includes a micro battery, a power switch, and a charging port.
  • the power supply device includes a micro battery, a power switch, and a charging port.
  • the micro battery is electrically connected to the power switch, and the micro battery is rechargeable lithium. Battery or button battery.
  • the charging port is electrically connected to the micro battery, and the charging port is used for plugging an external power source to charge the micro battery.
  • the low-noise bone conduction hearing aid of the present invention adopts the above technical solution, and achieves the following technical effects:
  • the low-noise bone conduction hearing aid of the present invention adopts a noise cancellation device not only from external sounds
  • the noise is separated and the noise is eliminated, so that the user can not only hear the outside sound, but also improve the clarity of the sound.
  • FIG. 1 is a schematic view showing the external structure of a preferred embodiment of the low-noise bone conduction hearing aid of the present invention
  • FIG. 2 is a block diagram showing the internal structure of a preferred embodiment of the low noise bone conduction hearing aid of the present invention.
  • FIG. 1 is a schematic diagram showing the external structure of a preferred embodiment of the low-noise bone conduction hearing aid of the present invention.
  • the low-noise bone conduction hearing aid includes, but is not limited to, a head mount 1 and an earpiece 2 disposed on both ends of the head mount 1, and each earpiece 2 is provided with a microphone 3.
  • the headgear 1 may be provided as a sheet-like structure worn on the top of the human head, or may be provided as a sheet-like structure that is clamped behind the head of the human body (ie, the back of the head).
  • the head-mounted bracket 1 can be selected from a sheet-like structure made of metal or plastic, and has certain elasticity, can adapt to the size of an adult head, or fits a ruler of a child's head. Inch size.
  • the joint of the headgear 1 and the earpiece 2 is provided with a telescopic member 10 for adjusting the length of the head mount 1 to adapt the head mount 1 to the size of the human head, thereby the head mount 1 Fixed to the head of the human body.
  • the number of the earpieces 2 is two (ie, left and right earpieces 2), respectively disposed at both ends of the headgear 1 to be worn on the head of the headgear 1 Or snap it behind the head, the handset 2 is just at the position of the user's two ears (left and right ears).
  • the earpiece 2 has a concave structure to wrap the human ear to prevent external noise from directly entering the ear.
  • the outer surface of the concave surface of each of the earpieces 2 is provided with a bone conduction vibrator 21, and each of the bone conduction vibrators 21 has a protrusion shape.
  • each earpiece 2 The outer surface of the concave surface of each earpiece 2 is provided with a volume adjustment knob 22 for adjusting the volume of the sound output by each earpiece 2, and the user can manually adjust the output of the respective earpiece 2 through the corresponding volume adjustment knob 22 according to the hearing requirements of the left and right ears.
  • the volume of the sound is provided with a volume adjustment knob 22 for adjusting the volume of the sound output by each earpiece 2, and the user can manually adjust the output of the respective earpiece 2 through the corresponding volume adjustment knob 22 according to the hearing requirements of the left and right ears. The volume of the sound.
  • the number of the microphones 3 is two, and a microphone 3 is disposed on the upper portion of the concave body of each of the earpieces 2.
  • the microphone 3 can be a directional microphone, which is characterized by different sensitivity to sound sources in different directions, or sensitivity to a sound source in a specific direction, so that it can receive sound waves in a fixed direction, which can improve the authenticity of the sound and improve the sound. With the processing effect of the acoustic signal, the user can not only hear the external sound, but also improve the clarity of the sound.
  • FIG. 2 is a block diagram showing the internal structure of a preferred embodiment of the low-noise bone conduction hearing aid of the present invention.
  • the interior of the head mount 1 includes, but is not limited to, a signal coupler 11, a noise canceling device 12, a signal amplifier 13, and a signal distributor 14.
  • the noise canceling device 12 includes a noise separator 121, a signal generator 122, and a signal mixer 123.
  • the signal coupler 11 is connected to the noise separator 121 via a signal line
  • the signal generator 122 is connected to the noise separator 121 through a signal line.
  • the noise separator 121 and the signal generator 122 are both connected to the signal mixer 123 by signal lines.
  • the signal mixer 123 is connected to the signal amplifier 13 via a signal line, which is connected to the signal distributor 14 via a signal line.
  • Each of the earpieces 2 includes, but is not limited to, a bone conduction vibrator 21 and a volume adjustment knob 22.
  • the signal distributor 14 is connected to each of the bone conduction vibrators 21 by signal lines, and each of the volume adjustment knobs 22 is connected to the bone conduction vibrator 21 by a signal line. In Fig. 2, the signal line is indicated by "”.
  • each microphone 3 is connected to the signal coupler 11 through a signal line for receiving an external sound signal and converting the sound signal into an audio signal, and outputting the audio signal to On the signal coupler 11.
  • the signal coupler 11 is configured to signal-couple the audio signal output from each of the microphones 3 to obtain a coupled signal, and transmit the audio signal to the noise separator 121.
  • the noise separator 121 is configured to separate a noise signal and an acoustic wave signal from the signal coupling, and output the noise signal and the acoustic wave signal to the signal mixer 123.
  • the sound signal is usually propagated only to the microphone 3 in a fixed direction, so that the direction of the effective sound signal received by the microphone 3 is substantially derived from one direction, and the sound signal propagated in other directions can be regarded as noise.
  • the noise separator 121 separates the noise signal and the sound wave signal from the audio signal in accordance with the direction of the sound signal received by the microphone 3.
  • the signal generator 122 is configured to generate an anti-trust signal having the same amplitude and opposite phase as the noise signal, and output the inverted signal to the signal mixer 123.
  • the signal mixer 123 is configured to cancel the noise signal and the inverted signal, and output the sound wave signal to the signal amplifier 13. Since the amplitudes of the noise signal and the inverted signal are the same and the phases are opposite, the two phases cancel each other and cancel each other, thereby outputting a noise-free sound wave signal to achieve the purpose of eliminating noise.
  • the signal amplifier 13 is for amplifying the sound wave signal and outputting the amplified sound wave signal to the signal distributor 14, the signal distributor 14 distributing the sound wave signal to each bone Conducted on the vibrator 21.
  • the bone conduction vibrator 21 is configured to generate a vibration signal according to the sound wave signal and pass the bone of the human brain
  • the bone conduction vibrator 21 is in the shape of a protrusion and is disposed on the concave surface of the earpiece 2 (as shown in FIG. 1), which is advantageous for transmitting a vibration signal to the human auditory nerve to form an auditory sense.
  • the volume of the output sound of each earpiece 2 can be adjusted according to the hearing needs of the user's left and right ears.
  • a volume adjustment knob 22 is provided on the outer surface of each of the earpieces 2 (as shown in FIG. 1). ). The user can manually adjust the size of the vibration signal through each of the volume adjustment knobs 22, thereby adjusting the volume of the sound outputted by each of the earpieces 2.
  • the head mount 1 is further provided with a power supply device 4, which includes a micro battery 41, a power switch 42 and a charging port 43.
  • the microbattery 41 is a rechargeable lithium battery or button battery, and the micro battery 41 is electrically connected to the power switch 42, which is used to provide operating power for the low noise bone conduction hearing aid.
  • the power switch 42 is electrically connected to the microphone 3, the signal coupler 11, the noise canceling device 12, the signal amplifier 13, the signal distributor 14, and the bone conduction vibrator 21 for controlling the Low-noise bone conduction hearing aids are turned on or off.
  • the charging port 43 is electrically connected to the micro battery 41 for charging an external power source to charge the micro battery 41. In Fig. 2, the electrical connection is indicated by a conductive line "".
  • the low-noise bone conduction hearing aid of the present invention uses a noise canceling device to not only separate noise from external sounds, but also eliminate noise, so that the user can not only hear the external sound, but also improve the clarity of the sound. degree.
  • the low-cost bone conduction hearing aid of the present invention adopts the above technical solution, and achieves the following technical effects:
  • the low-noise bone conduction hearing aid of the present invention adopts a noise cancellation device not only from external sounds The noise is separated and the noise is eliminated, so that the user can not only hear the outside sound, but also improve the clarity of the sound.

Abstract

本实用新型公开一种低噪音骨传导助听器，包括头戴支架，该头戴支架的两端均设置有听筒，每一听筒设置有麦克风及骨传导振动器，头戴支架包括信号耦合器、噪音消除装置、信号放大器及信号分发器，噪音消除装置包括噪音分离器、信号产生器及信号混合器。每一麦克风连接至信号耦合器，信号耦合器连接至噪音分离器，噪音分离器和信号产生器连接至信号混合器，信号混合器将噪音信号和反相信号相互抵消并输出声波信号至信号放大器。信号放大器连接至信号分发器，信号分发器连接至每一骨传导振动器，骨传导振动器根据声波信号产生振动信号并通过脑部骨头传递至听神经形成听觉。本实用新型不仅能够从外界声音中分离噪音，而且还能够消除噪音。

Description

说明书 发明名称： 氐噪音骨传导助听器
技术领域
[0001] 本实用新型涉及医疗器械领域， 尤其涉及一种低噪音骨传导助听器。
背景技术
[0002] 声波是以无形的能量存在于空气中， 经耳壳收集， 传递至外耳后， 经中耳再至 内耳， 最后传至大脑使得使用者能够听到外界的声音。 所以， 当外耳、 中耳、 内耳听神经及脑听觉中枢的任何部位有病变吋， 均会造成听力障碍， 甚至形成 耳聋而使听力丧失。 一旦发现听力有所下降， 患者需尽快配戴助听器， 保护残 余听力。 助听器是一种微小型扩声设备， 将外界的声音放大到听力损失患者需 要的程度， 利用患者的残余听力补偿听力不足， 使患者能和正常人一样能听到 声音， 是目前帮助听力障碍患者改善听力的最有效工具。
[0003] 目前， 市场上出现的助听器主要都包括麦克风、 放大器、 听筒、 电源等器件。
其中， 麦克风接收外界的声波信号并转换为电信号， 放大器将电信号进行放大 ， 再将放大后的电信号通过听筒转换为声波信号送至使用者的耳道中， 从而使 得使用者能够听到外界的声音。 然而， 目前助听器无法识别噪音、 降低或消除 噪音。 因此， 当周围有汽车喇叭声等噪音吋， 这些噪音会干扰助听器产生的声 波信号， 从而使助听器发出的声波信号与有效声音存在很大的偏差， 造成患者 听到的声音变调、 失真。
技术问题
[0004] 本实用新型的主要目的在于提供一种低噪音骨传导助听器， 旨在解决现有的助 听器无法从外界声音中分离噪音并消除噪音的问题。
问题的解决方案
技术解决方案
[0005] 为实现上述目的， 本实用新型提供了一种低噪音骨传导助听器， 包括头戴支架 ， 所述头戴支架的两端均设置有听筒， 每一个听筒上设置有麦克风及骨传导振 动器， 所述头戴支架包括信号耦合器、 噪音消除装置、 信号放大器及信号分发 器， 所述噪音消除装置包括噪音分离器、 信号产生器及信号混合器， 其中：
[0006] 所述每一个麦克风均连接至所述信号耦合器， 用于接收外界的声音信号并将所 述声音信号转换为音频信号；
[0007] 所述信号耦合器连接至所述噪音分离器， 用于将所述每一个麦克风输出的音频 信号进行信号耦合得到耦合信号；
[0008] 所述噪音分离器连接至所述信号混合器， 用于从所述信号耦合中分离噪音信号 和声波信号， 并将所述噪音信号和声波信号输出至所述信号混合器；
[0009] 所述信号产生器连接至所述信号混合器， 用于产生与所述噪音信号的振幅相同 且相位相反的反相信号， 并将所述反相信号输出至所述信号混合器；
[0010] 所述信号混合器连接至所述信号放大器， 用于将所述噪音信号和反相信号相互 抵消， 并输出所述声波信号至所述信号放大器；
[0011] 所述信号放大器连接至所述信号分发器， 用于将所述声波信号进行放大并将放 大后的声波信号输出至所述信号分发器；
[0012] 所述信号分发器连接至每一个骨传导振动器， 用于将所述放大后的声波信号分 发到每一个骨传导振动器；
[0013] 所述每一个骨传导振动器用于根据所述放大后的声波信号产生振动信号， 并将 所述振动信号通过人体脑部骨头传递至人体听神经形成听觉。
[0014] 优选的， 所述头戴支架设置为一种用于戴在人体头顶的片状结构， 或者为一种 用于卡紧在人体头部后方的片状结构。
[0015] 优选的， 所述听筒呈凹体状结构。
[0016] 优选的， 所述骨传导振动器呈突起状并设置在所述听筒的凹体内表面。
[0017] 优选的， 所述听筒的凹体外表面设置有音量调节旋钮， 所述音量调节旋钮连接 至所述骨传导振动器上。
[0018] 优选的， 所述麦克风设置在所述听筒的凹体上部。
[0019] 优选的， 所述头戴支架与听筒的连接处设置有可伸缩部件。
[0020] 优选的， 所述头戴支架还设置有电源装置， 所述电源装置包括微型电池、 电源 幵关以及充电端口。
[0021] 优选的， 所述微型电池电连接至所述电源幵关上， 所述微型电池为可充电的锂 电池或纽扣电池。
[0022] 优选的， 所述充电端口电连接至所述微型电池上， 所述充电端口用于接插外部 电源为所述微型电池进行充电。
发明的有益效果
有益效果
[0023] 相较于现有技术， 本实用新型所述低噪音骨传导助听器采用上述技术方案， 达 到了如下技术效果： 本实用新型所述低噪音骨传导助听器采用噪音消除装置不 仅能够从外界声音中分离出噪音， 而且还能够消除噪音， 从而让使用者不仅能 够听清楚外界声音， 还能提高声音的清晰度。
对附图的简要说明
附图说明
[0024] 图 1是本实用新型低噪音骨传导助听器较佳实施例的外部结构示意图；
[0025] 图 2是本实用新型低噪音骨传导助听器较佳实施例的内部结构方框示意图。
[0026] 本实用新型目的的实现、 功能特点及优点将结合实施例， 参照附图做进一步说 明。
实施该发明的最佳实施例
本发明的最佳实施方式
[0027] 为更进一步阐述本实用新型为达成上述目的所采取的技术手段及功效， 以下结 合附图及较佳实施例， 对本实用新型的具体实施方式、 结构、 特征及其功效进 行详细说明。 应当理解， 此处所描述的具体实施例仅仅用以解释本实用新型， 并不用于限定本实用新型。
[0028] 参考图 1所示， 图 1是本实用新型低噪音骨传导助听器较佳实施例的外部结构示 意图。 在本实施例中， 所述低噪音骨传导助听器包括， 但不仅限于， 头戴支架 1 以及设置在头戴支架 1两端上的听筒 2， 每一听筒 2上设置有麦克风 3。 所述头戴 支架 1可以设置为戴在人体头顶的片状结构， 也可以设置为卡紧在人体头部后方 (即后脑勺） 的片状结构。 所述头戴支架 1具体可以选用金属或塑料制成的片状 结构， 且具有一定弹性， 能够适应成人头部的尺寸大小， 或适应儿童头部的尺 寸大小。 所述头戴支架 1与听筒 2的连接处设置有可伸缩部件 10， 用于调节头戴 支架 1的长度使所述头戴支架 1适应人体头部的尺寸大小， 从而将所述头戴支架 1 固定在人体头部。
[0029] 在本实例中， 所述听筒 2的数量为两个 （即左、 右听筒 2) ， 分别设置在所述头 戴支架 1的两端， 以在所述头戴支架 1戴在头顶或卡紧在头部后方吋， 听筒 2正好 处于使用者两只耳朵 （左、 右耳朵） 的位置处。 所述听筒 2呈凹体状结构以包裹 住人体耳朵防止外界噪音直接进入耳朵内。 每一个听筒 2的凹体外表面设置有骨 传导振动器 21， 每一个骨传导振动器 21呈突起状。 每一个听筒 2的凹体外表面设 置有音量调节旋钮 22， 用于调节每一个听筒 2输出声音的音量大小， 使用者可以 根据左右耳的听力需求通过对应的音量调节旋钮 22手动调节各自听筒 2输出声音 的音量大小。
[0030] 所述麦克风 3的数量为两个， 每一个听筒 2的凹体上部设置一个麦克风 3。 所述 麦克风 3可以为指向性麦克风， 其特点是对不同方向声源的敏感程度不同， 或者 对特定方向的声源具有敏感性， 因此能够接收固定方向的声波， 能够提高声音 的真实性， 提高声波信号的处理效果， 使用者不仅能够听清楚外界声音， 还能 提高声音的清晰度。
[0031]
[0032] 参考图 2所示， 图 2是本实用新型低噪音骨传导助听器较佳实施例的内部结构方 框示意图。 在本实施例中， 所述头戴支架 1的内部包括， 但不仅限于， 信号耦合 器 11、 噪音消除装置 12、 信号放大器 13以及信号分发器 14。 所述噪音消除装置 1 2包括噪音分离器 121、 信号产生器 122以及信号混合器 123。 其中， 所述信号耦 合器 11通过信号线连接至所述噪音分离器 121上， 所述信号产生器 122通过信号 线连接至所述噪音分离器 121上。 所述噪音分离器 121和信号产生器 122均通过信 号线连接至所述信号混合器 123上。 所述信号混合器 123通过信号线连接至所述 信号放大器 13上， 该信号放大器 13通过信号线连接至所述信号分发器 14上。 每 一个听筒 2包括， 但不仅限于， 骨传导振动器 21以及音量调节旋钮 22。 所述信号 分发器 14通过信号线连接至每一个骨传导振动器 21上， 每一个音量调节旋钮 22 通过信号线连接至所述骨传导振动器 21上。 在图 2中， 所述信号线用" "标示。 [0033] 在本实施例中， 每一个麦克风 3通过信号线连接至所述信号耦合器 11上， 用于 接收外界的声音信号并将所述声音信号转换为音频信号， 并将音频信号输出至 信号耦合器 11上。 所述信号耦合器 11用于将每一个麦克风 3输出的音频信号进行 信号耦合得到耦合信号， 并将所述音频信号发送至所述噪音分离器 121上。
[0034] 所述噪音分离器 121用于从所述信号耦合中分离出噪音信号和声波信号， 并将 所述噪音信号和声波信号输出至所述信号混合器 123上。 本领域技术人员可以理 解的是， 由于使用者与旁人交流的过程中， 往往是正面交谈或者是相对位置基 本固定， 也就是说， 旁人通常固定地位于使用者的某个方向， 旁人说话发出的 声音信号通常也只沿固定的方向传播给麦克风 3， 因此所述麦克风 3接收到的有 效声音信号的方向基本是来源于一个方向的， 而其它方向传播来的声音信号可 以视为噪音。 所述噪音分离器 121根据所述麦克风 3接收到的声音信号方向即可 从音频信号中分离噪音信号和声波信号。
[0035] 所述信号产生器 122用于产生与所述噪音信号的振幅相同且相位相反的反相信 号， 并将该反相信号输出至所述信号混合器 123上。
[0036] 所述信号混合器 123用于将所述噪音信号和反相信号相互抵消， 并输出所述声 波信号至所述信号放大器 13中。 由于噪音信号和反相信号的振幅相同且相位相 反， 因此两者相混合后就会相互抵消， 从而输出无噪音的声波信号， 到达消除 噪音的目的。
[0037] 所述信号放大器 13用于将所述声波信号进行放大并将放大后的声波信号输出至 所述信号分发器 14上， 所述信号分发器 14将所述声波信号分发到每一个骨传导 振动器 21上。
[0038] 所述骨传导振动器 21用于根据所述声波信号产生振动信号并通过人体脑部骨头
(例如头部颅骨或面部颊骨） 传递至人体听神经， 随后听神经产生神经冲动呈 递给听觉中枢， 大脑皮层综合分析后形成听觉， 最终"听到"声音。 所述骨传导振 动器 21呈突起状并设置在听筒 2的凹体内表面 （如图 1所示） ， 有利于将振动信 号传递至人体听神经形成听觉。 每一个听筒 2输出声音的音量大小可以根据使用 者的左右耳朵听力需求进行调节。 为了让使用者可以调节每一个听筒 2输出声音 的音量大小， 每一个听筒 2的凹体外表面设置一个音量调节旋钮 22 (如图 1所示 ) 。 使用者可以通过每一个音量调节旋钮 22手动调节振动信号的大小， 从而调 节每一个听筒 2输出声音的音量大小。
[0039] 在本实施例中， 所述头戴支架 1上还设置有电源装置 4， 该电源装置 4包括微型 电池 41、 电源幵关 42以及充电端口 43。 所述微型电池 41为可充电的锂电池或纽 扣电池， 所述微型电池 41电连接至所述电源幵关 42上， 该微型电池 41用于为所 述低噪音骨传导助听器提供工作电源。 所述电源幵关 42电连接至所述麦克风 3、 信号耦合器 11、 噪音消除装置 12、 信号放大器 13、 信号分发器 14以及骨传导振 动器 21上， 该电源幵关 42用于控制所述低噪音骨传导助听器的幵启或关闭。 所 述充电端口 43电连接至所述微型电池 41上， 该充电端口 43用于接插外部电源为 所述微型电池 41进行充电。 在图 2中， 所述电连接用导电线" "标示。
[0040] 本实用新型所述低噪音骨传导助听器采用噪音消除装置不仅能够从外界声音中 分离出噪音， 而且还能够消除噪音， 从而让使用者不仅能够听清楚外界声音， 还能提高声音的清晰度。
[0041] 以上仅为本实用新型的优选实施例， 并非因此限制本实用新型的专利范围， 凡 是利用本实用新型说明书及附图内容所作的等效结构或等效功能变换， 或直接 或间接运用在其他相关的技术领域， 均同理包括在本实用新型的专利保护范围 内。
工业实用性
[0042] 相较于现有技术， 本实用新型所述低噪音骨传导助听器采用上述技术方案， 达 到了如下技术效果： 本实用新型所述低噪音骨传导助听器采用噪音消除装置不 仅能够从外界声音中分离出噪音， 而且还能够消除噪音， 从而让使用者不仅能 够听清楚外界声音， 还能提高声音的清晰度。
[0043]

Claims

权利要求书 一种低噪音骨传导助听器， 包括头戴支架， 其特征在于， 所述头戴支 架的两端均设置有一个听筒， 每一个听筒上设置有麦克风及骨传导振 动器， 所述头戴支架包括信号耦合器、 噪音消除装置、 信号放大器及 信号分发器， 所述噪音消除装置包括噪音分离器、 信号产生器及信号 混合器， 其中： 所述每一个麦克风均连接至所述信号耦合器， 用于接 收外界的声音信号并将所述声音信号转换为音频信号； 所述信号耦合 器连接至所述噪音分离器， 用于将所述每一个麦克风输出的音频信号 进行信号耦合得到耦合信号； 所述噪音分离器连接至所述信号混合器 ， 用于从所述信号耦合中分离噪音信号和声波信号， 并将所述噪音信 号和声波信号输出至所述信号混合器； 所述信号产生器连接至所述信 号混合器， 用于产生与所述噪音信号的振幅相同且相位相反的反相信 号， 并将所述反相信号输出至所述信号混合器； 所述信号混合器连接 至所述信号放大器， 用于将所述噪音信号和反相信号相互抵消， 并输 出所述声波信号至所述信号放大器； 所述信号放大器连接至所述信号 分发器， 用于将所述声波信号进行放大并将放大后的声波信号输出至 所述信号分发器； 所述信号分发器连接至每一个骨传导振动器， 用于 将所述放大后的声波信号分发到每一个骨传导振动器； 所述每一个骨 传导振动器用于根据所述放大后的声波信号产生振动信号， 并将所述 振动信号通过人体脑部骨头传递至人体听神经形成听觉。
如权利要求 1所述的低噪音骨传导助听器， 其特征在于， 所述头戴支 架设置为一种用于戴在人体头顶的片状结构， 或者为一种用于卡紧在 人体头部后方的片状结构。
如权利要求 1所述的低噪音骨传导助听器， 其特征在于， 所述听筒呈 凹体状结构。
如权利要求 3所述的低噪音骨传导助听器， 其特征在于， 所述骨传导 振动器呈突起状并设置在所述听筒的凹体内表面。
如权利要求 4所述的低噪音骨传导助听器， 其特征在于， 所述听筒的 凹体外表面设置有音量调节旋钮， 所述音量调节旋钮连接至所述骨传 导振动器上。
[权利要求 6] 如权利要求 3所述的低噪音骨传导助听器， 其特征在于， 所述麦克风 设置在所述听筒的凹体上部。
[权利要求 7] 如权利要求 1所述的低噪音骨传导助听器， 其特征在于， 所述头戴支 架与听筒的连接处设置有可伸缩部件。
[权利要求 8] 如权利要求 1至 7任一项所述的低噪音骨传导助听器， 其特征在于， 所 述头戴支架还设置有电源装置， 所述电源装置包括微型电池、 电源幵 关以及充电端口。
[权利要求 9] 如权利要求 8所述的低噪音骨传导助听器， 其特征在于， 所述微型电 池电连接至所述电源幵关上， 所述微型电池为可充电的锂电池或纽扣 电池。
[权利要求 10] 如权利要求 9所述的低噪音骨传导助听器， 其特征在于， 所述充电端 口电连接至所述微型电池上， 所述充电端口用于接插外部电源为所述 微型电池进行充电。
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