KR20110037483A - Bone conduct vibrating device with mastoid and plastic sound diaphragm - Google Patents

Bone conduct vibrating device with mastoid and plastic sound diaphragm Download PDF

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Publication number
KR20110037483A
KR20110037483A KR1020090094952A KR20090094952A KR20110037483A KR 20110037483 A KR20110037483 A KR 20110037483A KR 1020090094952 A KR1020090094952 A KR 1020090094952A KR 20090094952 A KR20090094952 A KR 20090094952A KR 20110037483 A KR20110037483 A KR 20110037483A
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KR
South Korea
Prior art keywords
mastoid
magnet
housing
voice coil
acoustic diaphragm
Prior art date
Application number
KR1020090094952A
Other languages
Korean (ko)
Inventor
이대성
Original Assignee
주식회사 뉴지로
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Filing date
Publication date
Application filed by 주식회사 뉴지로 filed Critical 주식회사 뉴지로
Priority to KR1020090094952A priority Critical patent/KR20110037483A/en
Publication of KR20110037483A publication Critical patent/KR20110037483A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/025—Diaphragms comprising polymeric materials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

Abstract

PURPOSE: A bone conduct vibrating device with a mastoid and a plastic sound diaphragm is provided to prevent a trouble by preventing a short between a voice coil and a yoke. CONSTITUTION: A housing(100) has an opened top and predetermined internal space. A voice coil(300) is installed inside the housing in order to receive an electric signal. A magnet(400) is located in the bottom surface of the housing in order to generate interference between the voice coil and a repulsive force and an attractive force of the magnetic field. The magnet comprises a magnet plate(410) formed in the upper part of the magnet. A mastoid(500) comprises a coil frame(510) and one or more penetration hole(520) supporting the voice coil.

Description

Bone conduct vibrating device with mastoid and plastic sound diaphragm

The present invention relates to a bone conduction vibration device, in particular, by forming the mastoid and the vibration acoustic plate integrally, the acoustic vibration plate made of synthetic resin material integrally to the mastoid which can simplify the structure and further increase the vibration efficiency even at low power It relates to a bone conduction vibration device formed.

In general, the sound heard by the human ear is transmitted in the form of a wave, and the transmitted wave-type sound vibrates the air molecules to vibrate the ear's eardrum so that the human can hear the sound.

As the sound heard by the vibration of the air molecules is not transmitted well to the hearing impaired, the bone conduction vibration device that directly stimulates the auditory nerve through the bone conduction to listen to the sound by vibrating the head bone forming the skull. It is spreading recently.

Such a bone conduction vibration device does not cause sound damage to the surrounding people, and recently, it is spread to the general public as well as hearing impaired people.

In other words, the hearing impaired person who has impaired external and middle ear, which are the paths of air conduction sound, can use bone conduction hearing which can perceive voice signals through bone vibration. It is used to listen to a voice signal, but listening to sound using a normal human bone conduction vibration device is the same as a disabled person.

These bone conduction vibration devices are widely used in normal people as well as general people with disabilities. For example, when the helmet is worn for special purposes for extinguishing in areas where the noise is difficult to hear or underwater or in flames, it is widely used for communication. It is used.

On the other hand, a general bone conduction vibration device for people with hearing impairment is an acoustic diaphragm provided to be capable of vibrating in response to an acoustic signal, for example, a voice coil (Voice Coil) connected to the acoustic diaphragm and spaced apart from the voice coil It may include a magnet. The acoustic diaphragm may vibrate by a magnetic field change generated between the voice coil and the magnet, and the vibration of the acoustic diaphragm may be transmitted through the skull of a deaf person.

1 is a cross-sectional view showing a conventional bone conduction vibration device. Referring to FIG. 1, the conventional bone conduction vibration device includes a vibration coil 2 installed inside an outer frame 1 having an open upper portion to receive an electric signal, and attraction and repulsion of the vibration coil 2 and a magnetic field. Of the coil frame 5 and the coil frame 5 coupled to the vibrating coil 2 to support the vibrating coil 2 and the magnet 4 installed in the yoke 3 so that mutual interference occurs. It is composed of a mastoid (6) which is connected to the upper side and is in contact with the user's skin to transmit mechanical vibration.

In the middle of the coil frame 5 and the mastoid 6, a central axis is formed to be thin, and a through hole 8 is formed at the center to be coupled to the central axis. And the diaphragm 7 is located in a central axis.

In addition, the edge of the diaphragm 7 is fixedly coupled to the outer frame 1, so that the vibrating coil 2 is suspended from the diaphragm 7, and the AC signal to the vibrating coil 2 When the vibration coil (2) is applied to the up and down reciprocating motion with respect to the magnet (4), it is configured to transmit mechanical vibration to the mastoid (6).

However, when the vibration coil 2 reciprocates, the vibration plate 2 has a great influence on the sound source generation depending on how efficiently the kinetic energy of the vibration coil 2 is transmitted well.

In particular, the diaphragm 7 is highly dependent on the performance capable of transmitting sound efficiently according to its shape and mass.

Conventional bone conduction vibration device configured as described above is provided with the mastoid (6), the coil frame (5) and the diaphragm (7) separately each of the mastoid (6), the coil frame ( 5) and there is a problem in that the diaphragm 7 has to be assembled.

In addition, when assembling the respective mastoid (6), coil frame (5) and the diaphragm (7), it is difficult to mount the diaphragm (7) horizontally, and the diaphragm (7) to vibrate up and down while maintaining the horizontal There is a problem that can not obtain the uniform vibration of the diaphragm 7 can not perform the role of).

In addition, the diaphragm 7 is made of a metal material that is weak to external pressure. When the mastoid 6 is pressurized in the lower direction of the housing 1 during assembly, the voice coil 2 is closed. There is a problem in that a short occurs in contact with the yoke 3 made of the metal material, causing a failure.

The first task of the present invention devised to solve the above problems is to integrate the masto and the acoustic diaphragm, the material is made of synthetic resin to simplify the structure and increase the elastic force compared to the conventional acoustic diaphragm It is to provide a bone conduction vibration device formed integrally with the acoustic diaphragm made of synthetic resin.

In addition, a second object of the present invention is to provide a bone conduction vibration device in which an acoustic diaphragm made of a synthetic resin is integrally formed on a mastoid capable of preventing a failure by preventing the voice coil from contacting the yoke to prevent a short circuit.

In addition, a third object of the present invention is to provide a bone conduction vibration device in which the acoustic diaphragm made of synthetic resin is integrally formed on the mastoid which can increase the repulsive force of the mastoid even at low power by installing an auxiliary magnet on one side of the magnet. There is.

In order to achieve the above object, the present invention provides a cylindrical housing having an upper portion having a predetermined internal space, a voice coil installed inside the housing to receive an electric signal, and an attraction force between the voice coil and the magnetic field. A magnet having a magnet plate formed on the bottom of the housing and having a magnet plate formed thereon so as to cause mutual interference due to repulsive force, and the voice coil placed on the top of the magnet and applied with an electric sound signal to an outer diameter surface are wound. A support coil frame, and integrally formed with the coil frame, is connected to the upper side of the coil frame to transmit a mechanical vibration in contact with the user's skin and includes a synthetic resin mastoid formed at least one through hole However, by the interaction with the magnetic force generated in the voice coil The acoustic diaphragm of synthetic resin material that vibrates by the magnet to vibrate in the physical characterized in that integrally formed with an edge of the master toy DE.

The acoustic diaphragm is characterized in that the material is any one of polyethylene (PE), polypropylene (PP) and styrene (ABS) resin.

The acoustic diaphragm is characterized by having a plurality of spokes having an irregular width.

It further comprises a yoke of the metal accommodated in the housing and installed in close contact with the inner bottom of the housing.

A guide plate for preventing the voice coil from contacting the bottom surface of the yoke when the mastoid falls, is installed below the mastoid.

Located between the inside of the housing and the outside of the magnet, and characterized in that the auxiliary magnet is different from the magnet and the vertical polarity is installed.

The present invention integrates the masto and the acoustic diaphragm, and the material is made of synthetic resin to simplify the structure and increase the elastic force compared to the conventional acoustic diaphragm.

In addition, the present invention has the effect of reducing the manufacturing cost by preventing the failure by the voice coil is in contact with the yoke to prevent the short.

In addition, the present invention has an effect that can obtain a high vibration force by increasing the repulsive force of the mastoid even at low power by installing an auxiliary magnet on one side of the magnet.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the bone conduction vibration device in which the acoustic vibration plate made of synthetic resin material integrally to the mastoid according to the present invention.

2 is a cross-sectional view showing a bone conduction vibration device in which the acoustic diaphragm made of synthetic resin is integrally formed on the mastoid according to the first embodiment of the present invention, and FIG. 3 is a mastoid according to the first embodiment of the present invention. In the bone conduction vibration device in which the acoustic vibration plate made of synthetic resin is integrally formed, the acoustic vibration plate is integrally formed on the mastoid.

2 and 3, the bone conduction vibration device in which the acoustic diaphragm made of synthetic resin is integrally formed in the mastoid according to the first embodiment of the present invention, the housing 100, the voice coil 300, the magnet ( 400), the mastoid 500 and the acoustic diaphragm 600 comprises a component and will be described in detail as follows.

The housing 100 has a cylindrical shape having an upper portion thereof open to a predetermined internal space.

The voice coil 300 is installed inside the housing 100 to receive an electric signal, and is installed in a state wound around the outer diameter surface of the coil frame 510 to be described later.

The magnet 400 is located on the bottom surface of the housing 100 so that mutual interference due to attraction and repulsive force of the voice coil 300 and the magnetic field is provided, and the magnet plate 410 is provided on the upper portion thereof.

The mastoid 500 serves to transmit mechanical vibrations in contact with the skin of the user. The voice coil 300, which is positioned above the magnet 400 and receives an electrical acoustic signal on an outer diameter surface thereof, is wound up to be integrally formed with the coil frame 510 that supports the voice coil 300. The through hole 520 is formed.

The through hole 520 is formed in the mastoid 500 to reduce the surface area of the mastoid 500.

This is because the vibration sound is stagnated inside the housing 100, thereby the effect that can block the external outgoing sound generated due to the vibration that is to be transmitted to the mastoid 500 is transmitted to the outer surface of the housing 100. have.

The acoustic diaphragm 600 vibrates by the magnet 400 which is physically vibrated by interaction with a magnetic force generated by the voice coil 300. The acoustic diaphragm 600 is formed integrally at the edge of the mastoid 500, the material is a synthetic resin.

Here, the mastoid 500, the voice coil 300 is wound around the outer diameter surface of the coil frame 510 and the acoustic diaphragm 600 made of a synthetic resin material integrally formed on the edge of the mastoid 500 By being formed integrally, it is possible to simplify the structure to improve the production rate and to increase the elastic force compared to the conventional acoustic diaphragm 600 of the metal.

In addition, when the existing mastoid and the acoustic diaphragm are dualized, it is possible to solve the problem that the vertical vibration is not uniform, and further, the vibration sound is leaked to the outside of the housing 100 without passing through the mastoid 500. External spill is blocked.

On the other hand, the acoustic diaphragm 600 has a plurality of spokes 610 having an irregular width.

The acoustic diaphragm 600 is made of any one material of polyethylene (PE), polypropylene (PP), and styrene (Acrylonitrile Butadiene Styrene copolymer: ABS) resin.

The spoke 610 is also preferably the same as the material of the acoustic diaphragm 600, the existing mastoid, acoustic diaphragm and coil frame are individually configured to eliminate the hassle of having to assemble each of the mastoid By integrating the 500 and the acoustic diaphragm 600 and the coil frame 510 with the same material, it is possible to obtain the same elastic force as that of the conventional acoustic diaphragm 600 while simplifying the structure.

4 is a cross-sectional view of a bone conduction vibration device in which an acoustic vibration plate made of synthetic resin is integrally formed on a mastoid according to a second embodiment of the present invention.

Referring to FIG. 4, the bone conduction vibration device in which an acoustic diaphragm made of synthetic resin is integrally formed in the mastoid according to the second embodiment of the present invention is made of a metal material and is accommodated in the housing 100 and the housing 100. It may further include a yoke 200 which is installed in close contact with the inner bottom of the).

In addition, the guide plate 700 is installed below the mastoid 500 to prevent the voice coil 300 from contacting the bottom surface of the yoke 200 when the mastoid 500 falls. can do.

The guide plate 700 prevents a short that occurs when the voice coil 300 is in contact with the bottom surface of the yoke 200 when the mastoid 500 is pressurized in the direction of the housing 100. Do the mechanics.

5 and 6 are cross-sectional views showing a bone conduction vibration device in which an acoustic diaphragm made of synthetic resin is integrally formed on a mastoid according to a third embodiment of the present invention.

5 and 6, the bone conduction vibration device in which the acoustic diaphragm 600 made of synthetic resin is integrally formed in the mastoid according to the third embodiment of the present invention, the inside of the yoke 200 and the magnet An auxiliary magnet 800 having a magnet plate 810 located between the outside of the 400 and having different polarities from the upper and lower polarities may be further installed.

The auxiliary magnet 800 is positioned in the non-contact state on the outer circumferential surface of the magnet 400, mutually with the magnetic force generated in the voice coil 300 by being installed with a polarity opposite to the vertical polarity of the magnet 400 There is an effect that can maximize the vibration repulsive force of the mastoid 500 that is physically vibrated by the action.

That is, by installing the auxiliary magnet 800 having the opposite polarity of the magnet 400 up and down, even if low power is applied to the voice coil 300, a higher vibration force is output to the existing bone conduction vibration device.

Therefore, even if the mastoid 500 is only weakly in contact with the skin of the user's face, the sound generated by the bone conduction vibration device in which the acoustic diaphragm 600 made of synthetic resin is integrally formed on the mastoid of the present invention can be heard. Will be.

In the above, the present invention has been described based on the preferred embodiments, but the technical idea of the present invention is not limited thereto, and modifications or changes can be made within the scope of the claims. It will be apparent to those skilled in the art, and such modifications and variations will belong to the appended claims.

The following drawings, which are attached to this specification, illustrate preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be interpreted.

1 is a cross-sectional view showing a conventional bone conduction vibration device,

2 is a cross-sectional view showing a bone conduction vibration device in which the acoustic diaphragm made of synthetic resin is integrally formed on the mastoid according to the first embodiment of the present invention;

3 is a plan view showing that the acoustic diaphragm is integrally formed on the mastoid in the bone conduction vibration device in which the acoustic diaphragm of synthetic resin material is integrally formed on the mastoid according to the first embodiment of the present invention;

4 is a cross-sectional view showing a bone conduction vibration device in which the acoustic diaphragm made of synthetic resin is integrally formed on the mastoid according to the second embodiment of the present invention;

5 and 6 are cross-sectional views showing a bone conduction vibration device in which an acoustic diaphragm made of synthetic resin is integrally formed on a mastoid according to a third embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: housing 200: yoke

300: voice coil 400: magnet

410, 810: magnet plate 500: mastoid

510: coil frame 520: through hole

600: acoustic diaphragm 610: spoke

700: guide plate 800: auxiliary magnet

Claims (6)

A cylindrical housing having an upper portion open and having a predetermined internal space; A voice coil installed inside the housing to receive an electrical signal; A magnet having a magnet plate formed on the bottom of the housing and formed on the bottom of the housing such that mutual interference due to attraction and repulsive force of the voice coil and the magnetic field occurs; And The voice coil, which is located above the magnet and receives an electrical acoustic signal on an outer diameter surface, is wound around the coil frame supporting the voice coil, integrally formed with the coil frame, and connected to an upper side of the coil frame. It includes a mastoid made of synthetic resin material in contact with the skin to transmit mechanical vibrations and formed at least one through hole, An acoustic diaphragm made of a synthetic resin material vibrating by the magnet which is physically vibrated by the magnetic force generated by the voice coil is integrally formed at the edge of the mastoid. Bone conduction vibration device formed integrally with the acoustic diaphragm. The method of claim 1, The acoustic diaphragm is a bone conduction vibrator formed integrally with the acoustic diaphragm of synthetic resin material on the mastoid, characterized in that the material is any one of polyethylene (PE), polypropylene (PP) and styrene (ABS) resin. The method of claim 2, The acoustic diaphragm has a plurality of spokes having an irregular width, bone conduction vibrator formed integrally with the acoustic diaphragm made of synthetic resin material. The method of claim 1, And a yoke of metal accommodated in the housing and installed in close contact with the inner bottom of the housing, wherein the acoustic vibration plate made of synthetic resin is integrally formed on the mastoid. The method of claim 4, wherein A bone conduction vibration device in which an acoustic diaphragm made of synthetic resin is integrally formed on the mastoid, wherein a guide plate is installed below the mastoid to prevent the voice coil from contacting the bottom surface of the yoke when the mastoid falls. . 6. The method according to any one of claims 1 to 5, A bone conduction vibration device having an acoustic diaphragm made of a synthetic resin integrally formed on a mastoid, wherein an auxiliary magnet is disposed between an inner side of the housing and an outer side of the magnet, and an auxiliary magnet having a different polarity from the magnet is installed.
KR1020090094952A 2009-10-07 2009-10-07 Bone conduct vibrating device with mastoid and plastic sound diaphragm KR20110037483A (en)

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Cited By (21)

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Publication number Priority date Publication date Assignee Title
KR101297828B1 (en) * 2013-04-25 2013-08-19 주식회사 지티엠 Acoustic apparatus using bone-conduction speaker
WO2014035059A1 (en) * 2012-08-29 2014-03-06 (주)하이소닉 Touch motion switch
CN104901500A (en) * 2014-08-13 2015-09-09 深圳君泽电子有限公司 Vibration device
KR20200040117A (en) * 2018-10-08 2020-04-17 현대자동차주식회사 Virtual engine sound system for vehicle
CN113556640A (en) * 2021-02-07 2021-10-26 深圳朗凡创新科技有限公司 Bone conduction sound production device
KR20220021000A (en) * 2015-08-13 2022-02-21 션젼 복스테크 컴퍼니 리미티드 Bone conduction loudspeaker
US11528562B2 (en) 2011-12-23 2022-12-13 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11540057B2 (en) 2011-12-23 2022-12-27 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11575994B2 (en) 2011-12-23 2023-02-07 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11595760B2 (en) 2011-12-23 2023-02-28 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11601761B2 (en) 2011-12-23 2023-03-07 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11611834B2 (en) 2011-12-23 2023-03-21 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11611833B2 (en) 2011-12-23 2023-03-21 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11632637B2 (en) 2014-01-06 2023-04-18 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11632636B2 (en) 2014-01-06 2023-04-18 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11638099B2 (en) 2011-12-23 2023-04-25 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11641552B2 (en) 2011-12-23 2023-05-02 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
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US11659341B2 (en) 2014-01-06 2023-05-23 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11665482B2 (en) 2011-12-23 2023-05-30 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11716575B2 (en) 2011-12-23 2023-08-01 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof

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US11540057B2 (en) 2011-12-23 2022-12-27 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11575994B2 (en) 2011-12-23 2023-02-07 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11611833B2 (en) 2011-12-23 2023-03-21 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11716575B2 (en) 2011-12-23 2023-08-01 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11638099B2 (en) 2011-12-23 2023-04-25 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11659335B2 (en) 2011-12-23 2023-05-23 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11611834B2 (en) 2011-12-23 2023-03-21 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11641551B2 (en) 2011-12-23 2023-05-02 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11665482B2 (en) 2011-12-23 2023-05-30 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11641552B2 (en) 2011-12-23 2023-05-02 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11528562B2 (en) 2011-12-23 2022-12-13 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11595760B2 (en) 2011-12-23 2023-02-28 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11601761B2 (en) 2011-12-23 2023-03-07 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
WO2014035059A1 (en) * 2012-08-29 2014-03-06 (주)하이소닉 Touch motion switch
KR101378891B1 (en) * 2012-08-29 2014-03-28 주식회사 하이소닉 Touch motion switch
KR101297828B1 (en) * 2013-04-25 2013-08-19 주식회사 지티엠 Acoustic apparatus using bone-conduction speaker
US11638105B2 (en) 2014-01-06 2023-04-25 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11632636B2 (en) 2014-01-06 2023-04-18 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11632637B2 (en) 2014-01-06 2023-04-18 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11659341B2 (en) 2014-01-06 2023-05-23 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11917373B2 (en) 2014-01-06 2024-02-27 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
CN104901500A (en) * 2014-08-13 2015-09-09 深圳君泽电子有限公司 Vibration device
US11611837B2 (en) 2015-08-13 2023-03-21 Shenzhen Shokz Co., Ltd. Systems for bone conduction speaker
US11570560B2 (en) 2015-08-13 2023-01-31 Shenzhen Shokz Co., Ltd. Systems for bone conduction speaker
KR20220021000A (en) * 2015-08-13 2022-02-21 션젼 복스테크 컴퍼니 리미티드 Bone conduction loudspeaker
KR20200040117A (en) * 2018-10-08 2020-04-17 현대자동차주식회사 Virtual engine sound system for vehicle
CN113556640A (en) * 2021-02-07 2021-10-26 深圳朗凡创新科技有限公司 Bone conduction sound production device

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