WO2017197872A1 - 低噪音气导助听器 - Google Patents

低噪音气导助听器 Download PDF

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Publication number
WO2017197872A1
WO2017197872A1 PCT/CN2016/108817 CN2016108817W WO2017197872A1 WO 2017197872 A1 WO2017197872 A1 WO 2017197872A1 CN 2016108817 W CN2016108817 W CN 2016108817W WO 2017197872 A1 WO2017197872 A1 WO 2017197872A1
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Prior art keywords
signal
noise
hearing aid
air conduction
sound
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PCT/CN2016/108817
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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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Application filed by 深圳市易特科信息技术有限公司 filed Critical 深圳市易特科信息技术有限公司
Publication of WO2017197872A1 publication Critical patent/WO2017197872A1/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 utility model relates to the field of medical instruments, in particular to a low noise air conduction hearing aid.
  • Sound waves are present in the air as invisible energy, collected through the ear shell, transmitted to the outer ear, passed through the middle ear to the inner ear, and finally passed to the brain so that the patient 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, hearing impairment may occur, and even hearing loss may occur. 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, receivers, power supplies and the like.
  • the microphone receives the external acoustic signal and converts it into an electrical signal
  • the amplifier amplifies the electrical signal, and then converts the amplified electrical signal into a sound wave signal through the receiver to be sent to the ear canal of the human body, so that the patient can hear the external sound.
  • hearing aids currently do not recognize noise, reduce or eliminate noise. Therefore, when there are noises such as car horns, these noises may interfere with the sound waves generated by the hearing aids, so that the sound signals emitted by the hearing aids are greatly deviated from the effective sounds, causing the voices of the patient to be tuned and distorted.
  • the main object of the present invention is to provide a low-noise air 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 air conduction hearing aid, including a head-mounted bracket, a microphone is disposed on the head-mounted bracket, and an earpiece is disposed at both ends of the head-mounted bracket.
  • Each earpiece is provided with a speaker
  • the head mount includes a noise canceling device, a signal amplifier and a signal a distributor
  • the noise canceling device includes a noise separator, a signal generator, and a signal mixer, wherein
  • the microphone is connected to the noise separator for receiving an external sound signal and converting the sound signal into an audio signal, and outputting the audio signal to the noise separator;
  • the noise separator is coupled to the signal mixer for separating a noise signal and an acoustic wave signal from the audio signal, 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 connected to each speaker for distributing the amplified sound wave signal to each speaker;
  • Each of the speakers is configured to play a sound according to the amplified sound wave signal and transmit it to the human ear canal to form an auditory sound.
  • 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 speaker is a directional microphone and is disposed on the concave surface of the earpiece.
  • an upper portion of the concave body of the earpiece is provided with a volume adjustment knob, and the volume adjustment knob is connected to the speaker.
  • 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 comprises a micro battery, a power switch and a charging port.
  • the power supply device comprises a micro battery, a power switch and a charging port.
  • the micro battery is electrically connected to the power switch, and the power switch is electrically connected to the microphone, the noise canceling device, the signal amplifier, the signal distributor and the speaker.
  • the micro battery is a rechargeable lithium battery or a 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 air conduction hearing aid of the present invention adopts the above technical solution, and achieves the following technical effects:
  • the low-noise air conduction hearing aid of the present invention adopts a noise cancellation device not only from external sounds It separates the noise and also eliminates the noise, so that the patient 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 air 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 air 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 air conduction hearing aid of the present invention.
  • the low-noise air 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 the head mount 1 is further 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 headgear 1 can be selected from a sheet-like structure made of metal or plastic, and has a certain elasticity, can adapt to the size of the adult head, or adapt to the size of the child's head.
  • the joint of the headgear 1 and the earpiece 2 is provided with a telescopic member 10 for adjusting The length of the head-mounted bracket 1 adapts the head-mounted bracket 1 to the size of the human head, thereby fixing the head-mounted bracket 1 to the head of the human body.
  • the number of the earpieces 2 is two (ie, left and right earpieces), respectively disposed at both ends of the headgear 1 to be worn on the head of the headgear 1 or clamped to the head.
  • the handset 2 is located at the position of the patient'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.
  • a speaker 21 is provided on the outer surface of the concave surface of each of the earpieces 2.
  • the upper portion of the concave body of each earpiece 2 is provided with a volume adjustment knob 22 for adjusting the volume of the sound outputted by the speaker 21.
  • the patient can manually adjust the speaker 21 on the corresponding earpiece 2 through the volume adjustment knob 22 according to the hearing requirements of the left and right ears.
  • the volume of the output sound is provided.
  • the microphone 3 is 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, and thus can receive sound in a fixed direction, and can Improve the authenticity of the sound and improve the processing effect of the sound wave signal. The patient 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 air conduction hearing aid of the present invention.
  • the inside of the head mount 1 includes, but is not limited to, the noise canceling device 11, the signal amplifier 12, and the signal distributor 13.
  • the noise canceling device 11 includes a noise separator 1 11 , a signal generator 112, and a signal mixer 113.
  • the microphone 3 is connected to the noise separator 111 via a signal line, and the noise separator 111 is connected to the signal generator 112 via a signal line.
  • the noise separator 111 and the signal generator 112 are both connected to the signal mixer 113 through signal lines.
  • the signal mixer 113 is connected to the signal amplifier 12 via a signal line, which is connected to the signal distributor 13 via a signal line.
  • Each earpiece 2 includes, but is not limited to, a speaker 21 and a volume adjustment knob 22.
  • the signal distributor 13 is connected to each of the speakers 21 through a signal line, and each of the volume adjustment knobs 22 is connected to the speaker 21 through a signal line. In Fig. 2, the signal line is indicated by "".
  • the microphone 3 is for receiving an external sound signal and converting the sound signal into an audio signal, and outputs the audio signal to the noise separator 111.
  • the noise separator 111 is configured to separate a noise signal and an acoustic signal from the audio signal, and The noise signal and the acoustic signal are output to the signal mixer 113. It can be understood by those skilled in the art that, because the patient communicates with others, the front talk is often a positive conversation or the relative position is basically fixed, that is, the voices of the others are usually fixedly located in a certain direction of the patient. Usually, it is also 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 basically derived from one direction, and the sound signal propagated in other directions can be regarded as noise. The noise separator 111 can separate the noise signal and the sound wave signal from the audio signal according to the direction of the sound signal received by the microphone 3.
  • the signal generator 112 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 113.
  • the signal mixer 113 is configured to cancel the noise signal and the inverted signal and output the sound wave signal to the signal amplifier 12. 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 12 is for amplifying the sound wave signal and outputting the amplified sound wave signal to the signal distributor 13, and the signal distributor 13 distributes the sound wave signal to each speaker 2 1 on.
  • the speaker 21 is configured to play a sound according to the sound wave signal and transmit it to the ear canal of the human body to form a hearing, and finally let the patient "hear” the sound.
  • the speaker 21 is disposed on the concave surface of the earpiece 2 (as shown in Fig. 1), and is beneficial for transmitting sound to the human ear canal (outer ear, middle ear, inner ear) for the patient to "hear” the sound.
  • the volume of the output sound of each earpiece 2 can be adjusted according to the patient's left and right ear hearing needs.
  • a volume adjustment knob 22 (shown in Fig. 1) is provided on the upper portion of each of the receiver 2's concave bodies. The patient can manually adjust the volume of the output sound of the speaker 21 on the corresponding earpiece 2 by the volume adjustment knob 22 according to the hearing needs of the left and right ears.
  • 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 for supplying working power to the low noise air conduction hearing aid.
  • the power switch 42 is electrically connected to the microphone 3, noise
  • the canceling device 11, the signal amplifier 12, the signal distributor 13, and the speaker 21 are used to control the turning on or off of the low noise air conduction hearing aid.
  • the charging port 43 is electrically connected to the micro battery 4 1 for plugging 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 air 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 patient can not only hear the external sound, but also improve the clarity of the sound. .
  • the low-noise air conduction hearing aid of the present invention adopts the above technical solution, and achieves the following technical effects:
  • the low-noise air conduction hearing aid of the present invention adopts a noise cancellation device not only from external sounds It separates the noise and also eliminates the noise, so that the patient can not only hear the outside sound, but also improve the clarity of the sound.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

本实用新型公开一种低噪音气导助听器，包括头戴支架，该头戴支架上设置麦克风，该头戴支架的两端均设置听筒，每一个听筒上设置扬声器，该头戴支架包括噪音消除装置、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。麦克风连接至噪音分离器，该噪音分离器从音频信号分离出噪音信号。噪音分离器和信号产生器连接至信号混合器，信号产生器产生噪音信号的反相信号。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。信号放大器连接至信号分发器，信号分发器连接至每一个扬声器，扬声器将声波信号进行播放出声音并传递到人体耳道。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： 氐噪音气导助听器
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气导助听器。
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， 最后传至大脑使得患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、 受话器、 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受话器转换为声波信号送至人体耳道中， 从而使 得患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气导助听器， 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气导助听器， 包括头戴支架， 所述头戴支架上设置有麦克风， 所述头戴支架的两端均设置有一个听筒， 每一 个听筒上设置有扬声器， 所述头戴支架包括噪音消除装置、 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] 所述麦克风连接至所述噪音分离器， 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， 并将所述音频信号输出至所述噪音分离器；
[0007] 所述噪音分离器连接至所述信号混合器， 用于从所述音频信号中分离噪音信号 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；
[0008] 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；
[0009] 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；
[0010] 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；
[0011] 所述信号分发器连接至每一个扬声器， 用于将所述放大后的声波信号分发到每 一个扬声器；
[0012] 所述每一个扬声器用于根据所述放大后的声波信号进行播放出声音并传递到人 体耳道中形成听觉。
[0013] 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。
[0014] 优选的， 所述听筒呈凹体状结构。
[0015] 优选的， 所述扬声器为指向性麦克风并设置在所述听筒的凹体内表面。
[0016] 优选的， 所述听筒的凹体上部设置有音量调节旋钮， 所述音量调节旋钮连接至 所述扬声器上。
[0017] 优选的， 所述头戴支架与听筒的连接处设置有可伸缩部件。
[0018] 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。
[0019] 优选的， 所述微型电池电连接至所述电源幵关上， 该电源幵关电连接至所述麦 克风、 噪音消除装置、 信号放大器、 信号分发器以及扬声器上。
[0020] 优选的， 所述微型电池为可充电的锂电池或纽扣电池。 [0021] 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
[0022] 相较于现有技术， 本实用新型所述低噪音气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气导助听器采用噪音消除装置不仅能 够从外界声音中分离噪音， 而且还能够消除噪音， 从而让患者不仅能够听清楚 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
[0023] 图 1是本实用新型低噪音气导助听器较佳实施例的外部结构示意图；
[0024] 图 2是本实用新型低噪音气导助听器较佳实施例的内部结构方框示意图。
[0025] 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
[0026] 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。
[0027] 参考图 1所示， 图 1是本实用新型低噪音气导助听器较佳实施例的外部结构示意 图。 在本实施例中， 所述低噪音气导助听器包括， 但不仅限于， 头戴支架 1以及 设置在所述头戴支架 1两端上的听筒 2， 所述头戴支架 1上还设置有麦克风 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。
[0028] 在本实例中， 所述听筒 2的数量为两个 （即左、 右听筒） ， 分别设置在头戴支 架 1的两端， 以在头戴支架 1戴在头顶或卡紧在头部后方吋， 听筒 2正好处于患者 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扬声器 21。 每 一个听筒 2的凹体上部设置有音量调节旋钮 22， 用于调节扬声器 21输出声音的音 量大小， 患者可以根据左右耳的听力需求通过音量调节旋钮 22手动调节各自对 应的听筒 2上的扬声器 21输出声音的音量大小。
[0029] 在本实例中， 所述麦克风 3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音 ， 能够提高声音的真实性， 提高声波信号的处理效果， 患者不仅能够听清楚外 界声音， 还能提高声音的清晰度。
[0030]
[0031] 参考图 2所示， 图 2是本实用新型低噪音气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， 噪音消除装 置 11、 信号放大器 12以及信号分发器 13。 所述噪音消除装置 11包括噪音分离器 1 11、 信号产生器 112以及信号混合器 113。 其中， 所述麦克风 3通过信号线连接至 所述噪音分离器 111上， 该噪音分离器 111通过信号线连接至信号产生器 112上。 所述噪音分离器 111和信号产生器 112均通过信号线连接至信号混合器 113上。 该 信号混合器 113通过信号线连接至所述信号放大器 12上， 该信号放大器 12通过信 号线连接至所述信号分发器 13上。 每一个听筒 2包括， 但不仅限于， 扬声器 21以 及音量调节旋钮 22。 所述信号分发器 13通过信号线连接至每一个扬声器 21上， 每一个音量调节旋钮 22通过信号线连接至所述扬声器 21上。 在图 2中， 所述信号 线用" "标示。
[0032] 所述麦克风 3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 将所述音频信号输出至噪音分离器 111上。
[0033] 所述噪音分离器 111用于从所述音频信号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 113上。 本领域技术人员可以理 解的是， 由于患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患者的某个方向， 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 111根据麦克风 3接收到的声音信号方向即可从所述音 频信号中分离噪音信号和声波信号。
[0034] 所述信号产生器 112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 113上。
[0035] 所述信号混合器 113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 12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。
[0036] 所述信号放大器 12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 13上， 所述信号分发器 13将所述声波信号分发到每一个扬声器 2 1上。
[0037] 所述扬声器 21用于根据所述声波信号进行播放出声音并传递到人体耳道中形成 听觉， 最终让患者"听到"声音。 所述扬声器 21设置在听筒 2的凹体内表面 （如图 1 所示） ， 有利于将声音传递至人体耳道 （外耳、 中耳、 内耳） 让患者 "听到 "声音 。 每一个听筒 2输出声音的音量大小可以根据患者的左、 右耳朵听力需求进行调 节。 为了让患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 体上部设置一个音量调节旋钮 22 (如图 1所示） 。 患者可以根据左右耳的听力需 求通过音量调节旋钮 22手动调节各自对应的听筒 2上的扬声器 21输出声音的音量 大小。
[0038] 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 低噪音气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、 噪音 消除装置 11、 信号放大器 12、 信号分发器 13及扬声器 21上， 该电源幵关 42用于 控制所述低噪音气导助听器的幵启或关闭。 所述充电端口 43电连接至微型电池 4 1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。
[0039] 本实用新型所述低噪音气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， 从而让患者不仅能够听清楚外界声音， 还能 提高声音的清晰度。
[0040] 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
[0041] 相较于现有技术， 本实用新型所述低噪音气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气导助听器采用噪音消除装置不仅能 够从外界声音中分离噪音， 而且还能够消除噪音， 从而让患者不仅能够听清楚 外界声音， 还能提高声音的清晰度。

Claims

权利要求书
[权利要求 1] 一种低噪音气导助听器， 包括头戴支架， 其特征在于， 所述头戴支架 上设置有麦克风， 所述头戴支架的两端均设置有一个听筒， 每一个听 筒上设置有扬声器， 所述头戴支架包括噪音消除装置、 信号放大器以 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： 所述麦克风连接至所述噪音分离器， 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， 并将所述音频信号输 出至所述噪音分离器； 所述噪音分离器连接至所述信号混合器， 用于 从所述音频信号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扬声器， 用于将所述放大后 的声波信号分发到每一个扬声器； 所述每一个扬声器用于根据所述放 大后的声波信号进行播放出声音并传递到人体耳道中形成听觉。
[权利要求 2] 如权利要求 1所述的低噪音气导助听器， 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。
[权利要求 3] 如权利要求 1所述的低噪音气导助听器， 其特征在于， 所述听筒呈凹 体状结构。
[权利要求 4] 如权利要求 3所述的低噪音气导助听器， 其特征在于， 所述扬声器为 指向性麦克风并设置在所述听筒的凹体内表面。
[权利要求 5] 如权利要求 4所述的低噪音气导助听器， 其特征在于， 所述听筒的凹 体上部设置有音量调节旋钮， 所述音量调节旋钮连接至所述扬声器上
[权利要求 6] 如权利要求 1所述的低噪音气导助听器， 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 7] 如权利要求 1至 6任一项所述的低噪音气导助听器， 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 8] 如权利要求 7所述的低噪音气导助听器， 其特征在于， 所述微型电池 电连接至所述电源幵关上， 该电源幵关电连接至所述麦克风、 噪音消 除装置、 信号放大器、 信号分发器以及扬声器上。
[权利要求 9] 如权利要求 7所述的低噪音气导助听器， 其特征在于， 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 7所述的低噪音气导助听器， 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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