KR20180135553A - Earset with bone conduction speaker - Google Patents

Earset with bone conduction speaker Download PDF

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Publication number
KR20180135553A
KR20180135553A KR1020170073682A KR20170073682A KR20180135553A KR 20180135553 A KR20180135553 A KR 20180135553A KR 1020170073682 A KR1020170073682 A KR 1020170073682A KR 20170073682 A KR20170073682 A KR 20170073682A KR 20180135553 A KR20180135553 A KR 20180135553A
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KR
South Korea
Prior art keywords
bone conduction
conduction speaker
unit
speaker unit
user
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KR1020170073682A
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Korean (ko)
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KR101937032B1 (en
Inventor
최남식
최광현
최광규
이윤재
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최남식
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Priority to KR1020170073682A priority Critical patent/KR101937032B1/en
Priority to PCT/KR2018/006456 priority patent/WO2018230880A1/en
Publication of KR20180135553A publication Critical patent/KR20180135553A/en
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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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016—Earpieces of the intra-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • 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

The present invention relates to an earset having a bone conduction speaker embedded therein which comprises: a first bone conduction speaker unit (110) having a first reproduction frequency band; a second bone conduction speaker unit (120) having a second reproduction frequency band; and a main body unit (100) having the first and second bone conduction speaker units (110, 120) embedded therein, and transferring vibration generated from the first and second bone conduction speaker units to an inner ear of a user through a part of a human body of the user. The second reproduction frequency band is a higher frequency band than the first reproduction frequency band. Therefore, the transferred sound quality can be improved by removing a transferred external noise or an accident can be prevented by receiving an external sound.

Description

Earset with bone conduction speaker < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an earset, and more particularly, to an earset incorporating a bone conduction speaker.

In general, there are two ways in which people can hear sound: air conduction method and bone conduction method. Among them, air conduction method is a method in which vibration of sound transmitted to the air is transmitted to the eardrum And the vibration of the eardrum is transmitted to the screw-shaped cochlea through the ossicles of three bones in the eardrum. The wow is filled with a liquid called lymphatic fluid. To the auditory nerve and the human brain recognizes the sound.

Bone conduction method can transmit the sound through the bone conduction even if there is abnormality in the tympanic membrane or the ossicular bone by sending the vibration of the sound to the wow directly through the skull since the vibration in the sound recognition mechanism omits the process of passing through the tympanic membrane and the ossicular bone. A bone conduction speaker is used.

Various types and forms of bone conduction loudspeakers have been developed. Most bone conduction loudspeakers include a frame that forms an appearance, a voice coil which is installed inside the frame and forms a magnetic field when an electrical signal is applied, At least one magnet that vibrates at a predetermined frequency while interacting with the magnet, and a vibrating body that transmits the vibration of the magnet to the human body. Accordingly, when an electrical signal is applied to the voice coil, A magnetic field proportional to the intensity of an electrical signal is formed in the coil, and the magnet interacts with the magnet so that the magnet oscillates with a predetermined frequency in the vertical direction. These vibrations are outputted through the vibrating body and transmitted to the human body, so that the human body recognizes a predetermined acoustic signal.

The advantage of such a bone conduction speaker is that it is easy to hear even if it is used for a long time, and it can listen to the external sound through the airway hearing and the sound through bone conduction at the same time, thereby coping with the sudden danger of the surroundings. Also, it is possible to communicate more precisely in a noisy environment than a method using a general speaker. Applications of such bone conduction speakers are widely used for communication devices for the hearing impaired, multimedia home appliances, internet phones, Bluetooth headsets for mobile phones and military, and bone conduction speakers including earphone or earphone can be implemented. .

In bone conduction earphone or earset, bone conduction speaker is proposed as an alternative speaker system to prevent or reduce noise-induced hearing loss because it can be easily audible even after prolonged use, and external sound and bone conduction And the bone conduction system can be used in a large external environment such as a motorcycle driver or a bicycle driver in a vibration environment in which the vibration of the sound is directly transmitted through the skull to the wah To reduce the influence of external noise while preventing the external noise from being transmitted, and is being commercialized as an alternative to enable more accurate communication in the case of using a general speaker.

On the other hand, in a conventional hands-free device or ear-set, a microphone that receives a user's call voice is exposed to the outside and is distant from the mouth of the user, so that external noise other than the call voice is received to deteriorate the call quality, There is a problem that it is liable to be contaminated. Accordingly, there has been attempted to develop and commercialize a hands-free device or earset incorporating an In Ear MIC in which a microphone is inserted into the ear canal of a user and a voice of a user transmitted through the ear drum is received .

However, even though the bone conduction system has the advantages described above, since the frequency bandwidth of the sound transmitted through the bone conduction speaker to the earphone is narrower in the earphone or earset, the sound quality and the volume are lowered, In the case where the earphone or earset to be applied is not generalized and the earphone or earset of the ear canal is configured to reduce the leakage noise, the low frequency sound is interfered with the reinforcement in the space in the ear connector, When used in bone and skin tissues, the used frequency components are attenuated and have a limitation in achieving a high sound quality.

Korean Patent Registration No. 10-1039107 (Hiriya Co., Ltd.) 2011. 05. 30.

Accordingly, the present invention provides a bone conduction speaker unit that vibrates in a normal vibration frequency band and a bone conduction speaker unit that vibrates in a high vibration frequency band in constructing an earphone or earset of a bone conduction type, And an object of the present invention is to provide an earset incorporating a bone conduction speaker in which sound quality to be delivered to a user is improved.

In addition, according to one embodiment of the present invention, in addition to selectively shielding an external sound according to a user's selection according to an external environment, external noise is removed to improve sound quality, The present invention provides an earset including a bone conduction speaker capable of preventing bone conduction.

Further, in one embodiment of the present invention, an earset including a bone conduction speaker, which includes an in-ear microphone, solves the problem that the external noise is received in addition to the user's call voice in a noisy environment, .

The present invention relates to an earphone incorporating a bone conduction speaker, comprising: a first bone conduction speaker unit (110) having a first reproduction frequency band; a second bone conduction speaker unit (120) having a second reproduction frequency band; And a body unit 100 which includes a first bone conduction speaker unit 110 and a second bone conduction speaker unit 120 and transmits vibrations generated from the first bone conduction speaker unit 110 and the second bone conduction speaker unit 120 to a user's ear through a part of the user's body And the second reproduction frequency band is higher than the first reproduction frequency band.

Preferably, the second bone conduction speaker unit 120 having the second reproduction frequency band is installed in front of the first bone conduction speaker unit 110 having the first reproduction frequency band in the eardrum direction to the wow direction do.

In addition, preferably, the main body 100 fixes the first bone conduction speaker unit 110 and the second bone conduction speaker unit inside, and transmits the vibration from each bone conduction speaker unit The vibration transmitting housing 170 includes a vibration transmitting housing 170 and a first vibration transmitting body 170 protruding toward the auricle of the entrance of the ear canal when the first bone conduction speaker unit 110 is fixed inside and transmits vibration, When the second bone conduction speaker unit 120 and the second bone conduction speaker unit 120 are worn to transmit vibration, a second vibration transmission body 172, which is in contact with the entrance of the external auditory canal and a portion of which is in contact with the inner wall of the external auditory canal, The first bone conduction speaker unit 110 having the first reproduction frequency band is installed inside the first vibration transmission body 171 and the second bone conduction speaker unit 120 having the second reproduction frequency band ) Is a second oscillation And is disposed inside the transfer body 172.

Further, preferably, the main body 100 includes a microphone unit 130 that receives a voice of a user's ear and converts the voice into an electric signal, and is inserted into a user's ear, And is installed at a position located in front of the bone conduction speaker unit 120 in the ear of the user.

Preferably, the main body 100 includes a controller 140 for processing an acoustic signal input from an external device and supplying the processed signals to the first bone conduction speaker unit 110 and the second bone conduction speaker unit, respectively, The control unit 140 receives and processes a user's setting and operation input through a user input interface (I / F), receives and processes an acoustic signal to be reproduced by an external device through an external device input / output interface (I / F) An input / output control unit 141 for processing an acoustic signal corresponding to a user's ear voice signal and outputting the processed acoustic signal to an external device, an audio signal output unit for outputting the acoustic signal received from the external device to the first bone conduction speaker unit 110 according to a predetermined method, A first output signal processing unit 142 for processing and outputting a sound signal to be output to the second bone conduction speaker unit and outputting it as an acoustic signal to be output to the second bone conduction speaker unit according to a predetermined method An input signal processing unit 144 for processing and outputting acoustic signals corresponding to a user's ear voice received through the microphone unit 130 according to a predetermined method and outputting the first output signal 144, The first output signal amplifying unit 145 amplifies the sound signal output from the processing unit 142 and outputs the amplified sound signal to the first bone conduction speaker unit 110. The second output signal amplifying unit 145 amplifies the sound signal output from the second output signal processing unit 143 A second output signal amplifying unit 146 for outputting the amplified sound signal to the second bone conduction speaker unit 120 and an input signal amplifying unit 147 for amplifying and outputting the acoustic signal inputted from the microphone unit 130.

Here, the main body 100 is formed with an external sound transmission passage 150 for connecting the external auditory canal of the user to the outside to transmit external sound to the eardrum, and a hole for connecting the external sound transmission passage 150 to the outside is formed , And it is preferable to open and close the external sound transmission passage 150 by opening and closing the hole according to the user's selection.

Preferably, the external sound shielding switching unit 150 is movably coupled along the outer surface of the main body 100 and is operated by a user's operation to selectively open / close the external sound transmission path 150, (200).

A plurality of shielding protrusions 180 are formed on an outer surface of the main body 100 and the external sound shield switching unit 200 surrounds the upper surface of the main body 100, A plurality of shielding protrusions 180 formed on the outer surface of the main body 100 and a shielding protrusion 211 selectively engaged with the holes of the external sound transmission path 150 are formed The shielding switching body 210 and the elastic body 220 disposed between the main body 100 and the shielding switching body 210 to apply an elastic force to the shielding switching body 210. [

According to the present invention, a bone conduction speaker unit that vibrates in a vibration frequency band and a bone conduction speaker unit that vibrates in a high vibration frequency band in constituting the earphone or earset of the bone conduction system can be constructed, The present invention solves the problem that the sound bandwidth is limited or the sound quality is deteriorated due to limitation of the sound bandwidth in the earphone or earset of the existing bone conduction system and the bone conduction speaker It is possible to provide an earset.

In addition, according to an embodiment of the present invention, in addition to the above, in an earset incorporating a bone conduction speaker, an external sound is selectively shielded according to a user's selection according to an external environment, It has the effect of preventing the safety accident by improving or receiving the external sound.

In addition, according to an embodiment of the present invention, an earphone including an in-ear microphone having a bone conduction speaker is further included to solve the problem that the external noise is received in addition to the voice call of the user in a noisy environment, Effect.

1 is a conceptual diagram of a main configuration of an earset incorporating a bone conduction speaker according to an embodiment of the present invention.
2 is a view showing an appearance of an earset incorporating a bone conduction speaker according to an embodiment of the present invention.
3 is an exploded perspective view of an earset incorporating a bone conduction speaker according to an embodiment of the present invention.
4 is a cross-sectional view of an earset incorporating a bone conduction speaker according to an embodiment of the present invention.
5 is a sectional view showing that the shielding switching body shown in FIG. 4 is lowered and the external sound transmission passage is cut off.
6 is a block diagram of a control unit of an earset incorporating a bone conduction speaker according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which the claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Unless defined otherwise, all terms (including technical and scientific terms) used herein are to be construed in a manner that is commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not to be interpreted ideally or excessively unless explicitly defined otherwise.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention. Like reference symbols in the drawings denote like elements.

FIG. 1 is a conceptual diagram of a main configuration of an earset incorporating a bone conduction speaker according to an embodiment of the present invention, and FIG. 2 is an external view of an earset incorporating a bone conduction speaker according to an embodiment of the present invention.

Referring to FIG. 1, an earset incorporating a bone conduction speaker of the present invention includes a first bone conduction speaker unit 110, a second bone conduction speaker unit 120, And a bone conduction speaker unit having different reaction frequency bands, wherein the second reproduction frequency band is higher than the first reproduction frequency band. In the present embodiment, the microphone unit 130 and the control unit 140 are incorporated together.

The main body 100 includes the first bone conduction speaker unit 110 and the second bone conduction speaker unit 120 so that vibrations generated therefrom are transmitted to a part of the user's body such as a cranial bone and / Or inner ear bone to the ear of the user.

The first bone conduction speaker unit 110 may have a first reproduction frequency band, for example, the first reproduction frequency band may have a mid and low frequency band of approximately 400 to 800 Hz, And a reproduction frequency band of 800 to 1.5 kHz called a second reproduction frequency band higher than the first reproduction frequency band, for example, a high frequency band.

Here, the reproduction frequency band refers to a band from the lowest resonance frequency to the higher limit frequency.

For this purpose, the first bone conduction speaker unit 110 of the present embodiment is composed of a vibrator having a size of about 10 pi and the second bone conduction speaker unit 120 is composed of a vibrator having a size of about 7 pi.

Accordingly, the first bone conduction speaker unit 110 functions as a woofer for transmitting vibrations to the middle and the lower bones, and the second bone conduction speaker unit 120 functions as a tweeter for transmitting vibrations to high frequencies. So that it is possible to separately transmit the bass part and the treble part in the earphone or earset of the bone conduction type, thereby improving the sound quality delivered to the user.

The main body 100 includes a vibration transmission housing 170 for fixing the first bone conduction speaker unit 110 and the second bone conduction speaker unit inside and for transmitting vibration from each bone conduction speaker unit, 3, the vibration transmitting housing 170 includes a first vibration transmitting body 170 protruding toward the auricle of the entrance of the ear canal when the first bone conduction speaker unit 110 is fixed inside and transmits vibration, When the second bone conduction speaker unit 120 and the second bone conduction speaker unit 120 are worn to transmit vibration, a second vibration transmission body 172, which is in contact with the entrance of the external auditory canal and a portion of which is in contact with the inner wall of the external auditory canal, And can be structured and separated.

In this case, the second bone conduction speaker unit 120 having the second reproduction frequency band may be installed in front of the first bone conduction speaker unit 110 having the first reproduction frequency band in the eardrum direction to the wow direction 3, the first bone conduction speaker unit 110 and the second bone conduction speaker unit 120 are mounted on the vibration transmitting housing 170, and the first bone conduction speaker unit 110 is attached to the first bone conduction speaker unit 110, And the second bone conduction speaker unit 120 is disposed on the inner side of the ear canal of the ear canal when a part of the second bone conduction speaker unit 120 is worn. And is disposed inside the second vibration transmission body 172 which is in contact with the second vibration transmission body 172.

Accordingly, the second bone conduction speaker unit 120 is disposed in front of the first bone conduction speaker unit 110 in the direction of the tympanic membrane to the woW direction, so that the high-tone part having a relatively low transmission rate can be transmitted to the woW more efficiently . In addition, when the earphone incorporating the bone conduction speaker of the present embodiment is incorporated, it is easy to combine the components to improve workability. As described later, the first vibration transmission body 171 and the second vibration transmission body The first bone conduction speaker unit 110 and the second bone conduction speaker unit 120 are separately installed in the body 172 and are coupled in various coupling schemes so that the vibrations conducted according to the coupling scheme are separated and adjusted It has a possible effect.

The microphone unit 130 receives the voice of the user's ear and converts it into an electrical signal, inserts the voice into the user's ear to block external noise, and has the effect of transmitting only the user's voice to the caller during a voice call.

For this purpose, the second vibration transmission body 171 of FIG. 3, which will be described later, is installed near the eardrum of the second vibration transmission body 171 to efficiently receive voice of the user's ears, that is, the external ear canal. , And microelectromechanical systems (MEMS), may be used. If necessary, the eartip 300 of the present embodiment is used for efficient noise shielding.

In this embodiment, the microphone unit 130 has a mounting position located in front of the second bone conduction speaker unit 120 in the user's ear. As shown in FIG. 3, the microphone unit 130 includes a second bone conduction speaker unit 120, (150) in the inner surface of the second vibration transmission body (172) in front of the sound transmission passage (120).

The control unit 140 processes sound signals input from an external device such as a smart phone and supplies the first bone conduction speaker unit 110 and the second bone conduction speaker unit to the first and second bone conduction speaker units 110 and 120, respectively. The processing method of the supplied sound signal is predetermined and stored in a program form according to the characteristics of the first bone conduction speaker unit 110 and the second bone conduction speaker unit 120 to be implemented.

Referring to FIG. 2, the earset incorporating the bone conduction speaker of the present embodiment includes a main body 100, an external sound shield switching unit 200, and an ear tip 300.

The main body 100 includes the first bone conduction speaker unit 110 and the second bone conduction speaker unit 120. The body unit 100 includes the first bone conduction speaker unit 110 ) And the second bone conduction speaker unit are internally fixed and the vibration from each bone conduction speaker unit is transmitted to the wah through a part of the user's body. In this embodiment, An external sound transmission path 150 for connecting the external sound transmission path 150 to the outside and transmitting external sound to the eardrum is formed and a hole for connecting the external sound transmission path 150 to the outside is formed, Thereby opening and closing the external sound transmission path 150.

In the present embodiment, in order to open and close the external sound transmission path 150, the external sound transmission path 150 is movably coupled along the outer surface of the main body 100, And an external sound shield switching unit 200 performing a function of turning on /

When the ear tip 300 is worn, the earset incorporating the bone conduction speaker of the present embodiment is tightly fixed to the inside of the outer ear of the user and transmits vibration in the first bone conduction speaker unit 110 and the second bone conduction speaker unit, And the sound transmission passage 150 is extended to transmit the external sound.

FIG. 3 is an exploded perspective view of an earset incorporating a bone conduction speaker according to an embodiment of the present invention, FIG. 4 is a sectional view of an earset incorporating a bone conduction speaker according to an embodiment of the present invention, and FIG. Sectional view showing that the shielded switching body is lowered and the external sound transmission passage is cut off.

3 and 4, the main body 100 of the earset incorporating the bone conduction speaker of the present embodiment includes the first bone conduction speaker unit 110, the second bone conduction speaker unit 120, A guide groove 160 for guiding the opening and closing operation of the external sound shield switching unit 200 for selectively shielding the external sound transmission path 150, And a vibration transmission housing 170 for fixing the one bone conduction speaker unit 110 and the second bone conduction speaker unit inside and for transmitting the vibration from each bone conduction speaker unit.

In this embodiment, the vibration transmitting housing 170 includes a first vibration transmitting body 171 and a second bone conduction speaker unit 120 for transmitting vibration by fixing the first bone conduction speaker unit 110 inside, And a second vibration transmission body 172 which is fixed inside and transmits vibration. Accordingly, when the earphone incorporating the bone conduction speaker of the present embodiment is implemented, it is possible to easily combine the components and improve the workability. As described later, the first vibration transmission body 171 and the second vibration transmission body The first bone conduction speaker unit 110 and the second bone conduction speaker unit 120 are separately provided in the first and second bone conduction speaker units 172 and 172, respectively.

A coupling portion is formed in the first vibration transmission body 171 so that the first bone conduction speaker unit 110 and the control unit 140 are installed through the coupling unit.

The second vibration transmission body 172 of the main body 100 has an external sound transmission path 150 formed therein and a hole for opening and closing the external sound transmission path 150 is formed on one side thereof, A second bone conduction speaker unit 120 and a microphone unit 130 are provided inside the guide groove 160 and a plurality of shielding protrusions 180 to be described later And has a structure in which an engaging groove 190 is formed in which the engaging projection 310 of the ear tip 300 is engaged.

As described above, the first bone conduction speaker unit 110 is installed inside the first vibration transmission body 171 and is positioned at a portion protruding toward the auricle of the entrance of the ear canal when the earset is worn. The body 120 is provided on the inner side of the second vibration transmission body 172 and a part of the body 120 is in contact with the entrance of the ear canal and part of it is in contact with the inner wall of the ear canal to transmit the vibration, By providing the bone conduction speaker unit 120 in front of the first bone conduction speaker unit 110 in the direction of the eardrum or the wow direction, the high-sounding portion having a relatively low transmission rate is more efficiently transmitted to the wow.

The microphone unit 130 is connected to the second bone conduction speaker unit 120 so that the microphone unit 130 is inserted into the ear of the user so as to have the effect of blocking external noise and transmitting only the user's voice to the caller during voice communication. And is disposed in the outer sound transmission path on the inner side of the second vibration transmission body 172 in front.

The external sound shield switching unit 200 is provided to surround the outer surface of the upper portion of the main body 100 and is lifted and raised in the height direction of the main body 100 and connected to the outer surface of the main body 100 to the second vibration transmission body 172 A shielding switching body 210 in which a plurality of shielding protrusions 180 are formed and shielding protrusions 211 selectively engaged with holes of the external sound transmission path 150 are formed, 210 for applying an elastic force to the shielding switching body 210. The shielding switching body 210 is provided with an elastic body 220,

3, the guide groove 160 of the main body 100 is formed at a depth lower than that of the plurality of shielding protrusions 180. The guide groove 160 of the shielding switching body 210 is formed in accordance with the user's pressing operation on the shielding switching body 210 The shielding switching body 210 moves along the outer circumferential surface of the main body 100 so that the shielding protrusion 211 protrudes from the upper shielding protrusion groove 180 or the lower shielding protrusion groove 180, And is selectively engaged with the hole of the sound transmission passage 150.

Referring to FIGS. 4 and 5, first, the external sound transmission path 150 is opened in FIG. 4 as the shield switching body 210 is raised. 5, when the shielding switching body 210 is lowered, the elastic body 220 is contracted, and the shielding protrusion 211 covers the hole of the external sound transmission path 150, The external sound shield switching unit 200 is operated in such a manner that the external sound shielding switching unit 200 can not enter the inside of the body 100 and it is necessary to simultaneously listen to the external sound and the sound through the bone conduction according to the user's selection In a situation where the external sound transmission path 150 is opened and the external sound transmission path 150 is closed and the external sound is not needed or the sound through the bone conduction is concentrated, Lt; / RTI >

In addition to the effects of the present invention described above, the structure of this embodiment minimizes the change of the basic design structure of the conventional earphone housing, thereby reducing the cost of further development, and realizing an earset incorporating a bone conduction speaker having a shielded switching structure .

6 is a block diagram of a control unit of an earset incorporating a bone conduction speaker according to an embodiment of the present invention.

Referring to FIG. 6, the control unit 140 of the ear-picker incorporating the bone conduction speaker processes sound signals input from an external device such as a smart phone and outputs the processed signals to the first bone conduction speaker unit 110 and the second bone conduction speaker unit And processes the sound signal corresponding to the user's ear voice received by the microphone unit 130 and outputs the processed sound signal to an external device such as a smart phone.

To this end, the control unit 140 receives and processes a user's setting and operation input through a user input interface (I / F), receives an acoustic signal to be reproduced by an external device through an external device input / output interface (I / F) An input / output control unit 141 for processing the sound signal of the user's ear and outputting the processed sound signal to an external device, and a control unit 141 for controlling the first bone conduction speaker unit 110 according to a predetermined method, A first output signal processor 142 for processing and outputting an acoustic signal received from an external device into an acoustic signal to be output to a second bone conduction speaker unit according to a predetermined method, 2 output signal processing unit 143 and an input signal processing unit 144 for processing and outputting acoustic signals for the ear sound of the user received through the microphone unit 130 according to a predetermined method A first output signal amplifying unit 145 amplifying the sound signal outputted from the first output signal processing unit 142 and outputting the amplified sound signal to the first bone conduction speaker unit 110, A second output signal amplifying unit 146 for amplifying the sound signal to be output to the second bone conduction speaker unit 120 and an input signal amplifying unit 147 for amplifying and outputting the sound signal inputted from the microphone unit 130 ). ≪ / RTI >

The control unit 140 receives and stores sound settings such as user's tone control through a user input interface (I / F) and receives operation inputs such as on / off, telephone conversation, call conversation, volume control, The first output signal processing unit 142, the second output signal processing unit 143, the input signal processing unit 144, the first output signal amplifying unit 145, the second output signal processing unit 144, The output signal amplifying unit 146, and the input signal amplifying unit 147 can be controlled.

The first output signal processing unit 142, the second output signal processing unit 143, the input signal processing unit 144, the first output signal amplifying unit 145, the second output signal amplifying unit 146, The sound setting and operation input for controlling the setting and setting of the unit 147 and the operation thereof can be inputted from the external device through the input / output control unit 141, and according to the embodiment, the user input interface (I / F) of the user and the related setting and operation of the connected external device according to the operation input.

As described above, the present invention comprises a bone conduction speaker unit that vibrates in a vibration frequency band and a bone conduction speaker unit that vibrates in a high vibration frequency band in constituting an earphone or earset of a bone conduction type, It is possible to separate and transmit the treble part, thereby solving the problem that the sound bandwidth is limited or the sound quality is not deteriorated in the conventional bone conduction earphone or earset so that the sound quality of the bone conduction speaker In addition, according to one embodiment of the present invention, in an earset incorporating a bone conduction speaker, an external sound is selectively shielded according to a user's selection according to the external environment, To improve sound quality by removing noise or to receive external sound, In addition, in one embodiment, the earset including the bone conduction speaker may include an in-ear microphone, so that external noise other than the user's voice voice is received in a noisy environment, And the effect of solving the problem has been explained through the embodiments.

In addition, it has been described that the embodiment of the present invention can be implemented while minimizing the change of the basic structure of the conventional earphone housing.

As described above, the present invention has been described herein with reference to specific details such as specific components and the like, and various various embodiments and drawings. However, it should be understood that the present invention is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the scope of the present invention. Modifications and modifications are possible.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

1: Earset
100: main body 200: external sound shield switching unit 300: ear tip
110: first bone conduction speaker unit
120: second bone conduction speaker unit
130: Microphone unit
140:
150: External sound transmission passage
160: Guide groove
170: vibration transmitting housing
180: shielding projection groove
190: Coupling groove

Claims (8)

In an earset incorporating a bone conduction speaker,
A first bone conduction speaker unit 110 having a first reproduction frequency band,
A second bone conduction speaker unit 120 having a second reproduction frequency band, and
The body unit 100 includes the first bone conduction speaker unit 110 and the second bone conduction speaker unit 120 and transmits vibrations generated from the first bone conduction speaker unit 110 and the second bone conduction speaker unit 120 to a user's ear through a part of the user's body including,
Wherein the second reproduction frequency band is a frequency band higher than the first reproduction frequency band. The method according to claim 1,
The second bone conduction speaker unit 120 having the second reproduction frequency band is installed in front of the first bone conduction speaker unit 110 having the first reproduction frequency band in the eardrum direction to the wow direction Earphone with built-in bone conduction speaker. The method according to claim 1,
The main body 100 includes a vibration transmission housing 170 for fixing the first bone conduction speaker unit 110 and the second bone conduction speaker unit inside and for transmitting vibration from each bone conduction speaker unit, , The vibration transmission housing 170 includes a first vibration transmission body 171 that protrudes toward the auricle of the entrance of the ear canal when the first bone conduction speaker unit 110 is fixed inside and transmits vibration, And a second vibration transmitting body 172 which is partly in contact with the entrance of the external auditory canal and in contact with the inner wall of the external auditory canal when the two-bone conduction speaker unit 120 is fixed inside and transmits vibration, The first bone conduction speaker unit 110 having the first reproduction frequency band is installed inside the first vibration transmission body 171 and the second bone conduction speaker unit 120 having the second reproduction frequency band has the second vibration Inside the transfer body 172 Bone conduction, characterized in that provided in the block diagram earset internal speaker. The method according to claim 1,
The main body 100 includes a microphone unit 130 that receives a voice of the user's ear and converts the voice into an electrical signal and is inserted into a user's ear,
Wherein the microphone unit (130) is installed at a position located in front of the second bone conduction speaker unit (120) in the ear of a user. The method according to claim 1,
The main body 100 includes a controller 140 for processing an acoustic signal input from an external device and supplying the first and second bone conduction speaker units 110 and 2 to the second bone conduction speaker unit,
The control unit 140 receives and processes a user's setting and operation input through a user input interface (I / F), receives and processes an acoustic signal to be reproduced by an external device through an external device input / output interface (I / F) An input / output control unit 141 for processing an acoustic signal corresponding to a user's ear voice signal and outputting the processed acoustic signal to an external device, an audio signal output unit for outputting the acoustic signal received from the external device to the first bone conduction speaker unit 110 according to a predetermined method, A second output signal processing unit 142 for processing the sound signal received from the external device into an acoustic signal to be output to the second bone conduction speaker unit according to a predetermined method and outputting the processed sound signal; An input signal processing unit 144 for processing and outputting an acoustic signal corresponding to a user's ear voice received through the signal processing unit 143 and the microphone unit 130 according to a predetermined method, A first output signal amplifying unit 145 amplifying the sound signal output from the output signal processing unit 142 and outputting the amplified sound signal to the first bone conduction speaker unit 110, A second output signal amplifying unit 146 amplifying and outputting the amplified sound signal to the second bone conduction speaker unit 120 and an input signal amplifying unit 147 amplifying and outputting the sound signal inputted from the microphone unit 130 And an earphone incorporating a bone conduction speaker. The method according to any one of claims 1 to 5,
The main body 100 is formed with an external sound transmission path 150 for connecting an external auditory canal of a user to the outside to transmit external sound to the eardrum and a hole for connecting the external sound transmission path 150 to the outside, Wherein the external sound transmission path (150) is opened or closed by opening and closing the hole according to the selection of the external sound transmission path (150). The method of claim 6,
An external sound shield switching part 200 which is movably coupled along the outer surface of the main body part 100 and performs a function of selectively opening and closing the external sound transmission path 150 or its hole by movement by the user Wherein the bone conduction speaker has a built-in bone conduction speaker. The method of claim 7,
A plurality of shielding protrusions 180 are formed on the outer surface of the main body 100,
The external sound shield switching unit 200 is provided so as to surround the outer surface of the upper portion of the main body 100 and is lifted and raised in the height direction of the main body 100 and includes a plurality of shielding protrusions A shielding switching body 210 having a shielding protrusion 211 selectively engaged with a hole of the groove 180 and the external sound transmission path 150 and a shielding switching body 210 having a shielding switching body 210 between the main body 100 and the shielding switching body 210 And an elastic body (220) disposed on the shielding switching body (210) and applying an elastic force to the shielding switching body (210).
KR1020170073682A 2017-06-13 2017-06-13 Earset with bone conduction speaker KR101937032B1 (en)

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KR102315063B1 (en) 2019-05-28 2021-10-20 주식회사 이엠텍 Semi-canal type wireless earset
KR102357809B1 (en) 2019-11-26 2022-01-28 최남식 Vibration like chair system using vibrator speaker mechanism

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