KR20210018001A - Bone conduction device - Google Patents

Abstract

Provided is a bone conduction device with improved efficiency. The bone conduction device is disclosed in one embodiment of the present disclosure to achieve the above-described objective. The bone conduction device includes: a housing including an upper case in which at least a part of one upper end surface is opened, and a lower case coupled to one portion of the upper case; a magnetic unit including one or more magnets to form a magnetic field; a first voice coil for generating a vibration by reacting with the magnetic field of the magnetic unit; a vibration transmission unit for transmitting the vibration generated by the first voice coil to a user in a bone conduction scheme; and a sound transmission unit configured as one or more perforations formed in at least a part of the housing, and configured to transmit a sound generated by the vibration inside the housing to the user in an air conduction scheme.

Description

Bone conduction device {BONE CONDUCTION DEVICE}

The present disclosure relates to a bone conduction device, and more particularly, to a bone conduction device with improved efficiency.

With the remarkable advances in the technology related to digital sound equipment, millions of people can listen to the music they want anytime, anywhere. Most of the output methods of these digital sound devices are earphones or headphones through an air conduction method.

However, in the case of air-conducting earphones and headphones, the problem of safety accidents has steadily emerged because the surrounding sound is blocked by using the earphones and headphones. Accordingly, some developed countries legally regulate the prohibition of listening to music on the road while wearing air-conducting earphones and headphones that cover ears.

Therefore, research on a sound output device that can prevent safety accidents by listening to the surrounding noise sufficiently while simultaneously receiving sound through an acoustic device is underway. Representative examples of such sound output devices include bone conduction headphones or bone conduction earphones.

In addition, the general sound output method transmits sound by transmitting vibrations of air to the cochlea through the eardrum, whereas bone conduction transmits vibrations directly from the bone to the cochlea. For this reason, even if there is a disorder in the eardrum, etc., if the cochlea and the auditory nerve are normal, sound can be heard through bone conduction headphones or bone conduction earphones.

However, the bone conduction headphones or bone conduction earphones have a disadvantage in that the output of the low-pitched range is weak because attenuation of vibration occurs in the process of transmitting sound compared to a general sound output method.

Accordingly, there is a demand for a sound output means having the advantages of a general sound output method and a sound output method using bone conduction at the same time.

Republic of Korea Patent Publication 10-2018-0090229

The present disclosure has been devised in response to the above-described background technology, and is to provide a bone conduction device with improved efficiency.

In one embodiment of the present disclosure for solving the above-described problem, a bone conduction device is disclosed. The bone conduction device includes a housing formed through an upper case in which at least a part of an upper end surface is open and a lower case coupled to a portion of the upper case, a magnetic portion forming a magnetic field including at least one magnet, and the magnetism A first voice coil that generates vibration in response to a negative magnetic field, a vibration transmission unit for transmitting vibration generated by the first voice coil to a user in a bone conduction method, and one or more perforations formed in at least a part of the housing, A sound transmission unit for transmitting sound generated by vibration inside the housing to the user in an air conduction method may be included.

Alternatively, the vibration transmitting unit transmits the vibration generated by the contact unit and the first voice coil to the contact unit for transmitting the vibration to the user in a bone conduction method through contact with the user's body, and to the housing. It may include a mounted diaphragm.

Alternatively, the one or more perforations may be provided in a shape such that sound generated through vibration inside the housing has directivity.

Alternatively, the one or more perforations include a central perforation located at a center of the one or more perforations and an outer perforation positioned at an outer edge of the one or more perforations, and the outer perforation may be provided with a cross-sectional area smaller than the central perforation. I can.

Alternatively, it is provided in the housing, it may further include an adjustment mechanism for adjusting the direction and size of the sound transmitted through the sound transmission unit.

Alternatively, the adjustment mechanism allows rotation within a predetermined angle with respect to at least one of the upper case and the lower case forming the housing, and restricts rotation formed in at least one of the upper case and the lower case. Rotation other than the predetermined angle may be restricted through the unit.

Alternatively, the adjustment mechanism includes a blocking portion for blocking sound transmitted to one or more perforations formed in at least one of the upper case and the lower case, and the blocking portion includes an area corresponding to the one or more perforations. And can be formed within the predetermined angle.

Alternatively, it further comprises a detachable mechanism provided in the housing and detachable from the wearable device, and when the housing is coupled to the wearable device through the detachment mechanism, the vibration transmitting unit is brought into contact with the user's temporal bone and The sound is transmitted in a road manner, and the sound transmission unit may be positioned in a direction opposite to the user's ear canal to transmit the sound through the air conduction method.

Alternatively, it further comprises a first mount unit for mounting the magnetic part to the housing, the first mount unit, extending in the direction of the center of the bone conduction device, the shortest distance direction and a predetermined angle to the center It includes at least one rod having a, and is mounted with the magnetic portion through the at least one rod, it is possible to reduce the lateral vibration of the magnetic portion.

Alternatively, the magnetic unit vibrates the first voice coil in response to the magnetic field of the first voice coil, and vibrates by a reaction of the vibration of the first voice coil, thereby generating a movement of air inside the housing. I can make it.

Alternatively, the movement of the air inside the housing may reduce the leakage sound generated by the bone conduction device, or may amplify the sound transmitted to the sound transmission unit and air conduction from the sound transmission unit to the user.

Alternatively, it may further include a second voice coil positioned under the magnetic portion to generate vibration by reacting with a magnetic field of the magnetic portion, and a second mounting unit for mounting the second voice coil.

Alternatively, the magnetic unit includes a first magnetic unit for interacting with the first voice coil, a second magnetic unit for interacting with the second voice coil, and the first magnetic unit and the second magnetic unit. It may include an intermediate plate for mounting.

Alternatively, a network unit for receiving a control signal for controlling the equalizer of the bone conduction device from a user terminal, and a processor for controlling vibrations generated in the first and second voice coils in response to the control signal Further, and the control signal may include selection information on a method to perform equalizer adjustment for at least one of the bone conduction method and the air conduction method.

Alternatively, further comprising a sound receiver provided on the outside of the housing to receive the ambient sound, and the processor, when the size of the ambient sound is less than a predetermined threshold, the first generated in the first voice coil A third vibration generated in the second voice coil may be controlled such that the vibration is amplified and the second vibration related to the movement of the air inside the housing is attenuated.

The present disclosure can provide a bone conduction device with improved efficiency.

Various aspects are now described with reference to the drawings, wherein like reference numbers are used collectively to refer to like elements. In the examples that follow, for illustrative purposes, a number of specific details are presented to provide a thorough understanding of one or more aspects. However, it will be apparent that such aspect(s) may be practiced without these specific details.
1 shows a three-dimensional perspective view of a bone conduction device according to an embodiment of the present disclosure.
2 is an exploded view illustrating a detailed configuration of a bone conduction apparatus according to an embodiment of the present disclosure.
3 is a side cross-sectional view of a bone conduction device according to an embodiment of the present disclosure.
4 is an exploded view for explaining a detailed configuration of a bone conduction apparatus according to another embodiment of the present disclosure.
5 is a side cross-sectional view of a bone conduction device related to another embodiment of the present disclosure.
6 shows an exemplary diagram for a mount unit related to an embodiment of the present disclosure.
7 shows an exemplary diagram of a diaphragm according to an embodiment of the present disclosure.
8 shows an exemplary diagram for a contact unit related to an embodiment of the present disclosure.
9A illustrates an exemplary view for explaining a vibration transmission process of a bone conduction device according to an embodiment of the present disclosure.
9B is a diagram illustrating an example for explaining a sound transmission process of the bone conduction device according to an embodiment of the present disclosure.
10 illustrates an exemplary view of a bone conduction apparatus coupled to a wearable device according to an embodiment of the present disclosure.
11 shows an exemplary view for explaining the structural features of the bone conduction device according to an embodiment of the present disclosure.
12 is a conceptual diagram of a system for providing sound through a bone conduction device according to an embodiment of the present disclosure.
13 is a block diagram of a bone conduction device according to an embodiment of the present disclosure.
14 is a flowchart illustrating a method for providing sound to a user through a bone conduction device according to an embodiment of the present disclosure.
15 illustrates a module for implementing a method for providing sound to a user through a bone conduction device according to an embodiment of the present disclosure.
16 shows a simplified and general schematic diagram of an exemplary computing environment in which embodiments of the present disclosure may be implemented in relation to an embodiment of the present disclosure.

Various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for illustrative purposes, a number of specific details are disclosed to aid in an overall understanding of one or more aspects. However, it will also be appreciated by those of ordinary skill in the art that this aspect(s) may be practiced without these specific details. The following description and the annexed drawings set forth in detail certain illustrative aspects of one or more aspects. However, these aspects are exemplary and some of the various methods in the principles of the various aspects may be used, and the descriptions described are intended to include all such aspects and their equivalents. Specifically, as used herein, "an embodiment", "example", "aspect", "example" and the like are not construed as having any aspect or design being better or advantageous than other aspects or designs. May not.

Hereinafter, the same or similar components are assigned the same reference numerals regardless of the reference numerals, and redundant descriptions thereof will be omitted. In addition, in describing the embodiments disclosed in the present specification, when it is determined that detailed descriptions of related known technologies may obscure the subject matter of the embodiments disclosed in the present specification, detailed descriptions thereof will be omitted. In addition, the accompanying drawings are for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed in the present specification is not limited by the accompanying drawings.

Although the first, second, and the like are used to describe various devices or components, it goes without saying that these devices or components are not limited by these terms. These terms are only used to distinguish one device or component from another device or component. Therefore, it goes without saying that the first element or element mentioned below may be a second element or element within the technical idea of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

In addition, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or”. That is, unless specified otherwise or is not clear from the context, "X employs A or B" is intended to mean one of the natural inclusive substitutions. That is, X uses A; X uses B; Or, when X uses both A and B, “X uses A or B” can be applied to either of these cases. In addition, the term "and/or" as used herein should be understood to refer to and include all possible combinations of one or more of the listed related items.

In addition, the terms "comprising" and/or "comprising" mean that the corresponding feature and/or element is present, but excludes the presence or addition of one or more other features, elements and/or groups thereof. It should be understood as not. In addition, unless otherwise specified or when the context is not clear as indicating a singular form, the singular in the specification and claims should be interpreted as meaning "one or more" in general.

When a component is referred to as being “connected” or “connected” to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being “directly connected” or “directly connected” to another component, it should be understood that there is no other component in the middle.

The suffixes “module” and “unit” for constituent elements used in the following description are given or used interchangeably in consideration of only the ease of preparation of the specification, and do not have distinct meanings or roles by themselves.

When an element or layer is referred to as “on” or “on” of another element or layer, it is not only above the other element or layer, but also the other layer or other element in the middle. Includes all intervening cases. On the other hand, when a component is referred to as "directly on" or "directly on", it means that no other component or layer is interposed therebetween.

Spatially relative terms "below", "beneath", "lower", "above", "upper", etc., as shown in the figure It can be used to easily describe a component or a correlation with other components. Spatially relative terms should be understood as terms including different directions of the device during use or operation in addition to the directions shown in the drawings.

For example, if a component shown in a drawing is turned over, a component described as "below" or "beneath" of another component will be placed "above" the other component. I can. Accordingly, the exemplary term “below” may include both directions below and above. Components may be oriented in other directions, and thus spatially relative terms may be interpreted according to the orientation.

Objects and effects of the present disclosure, and technical configurations for achieving them will become apparent with reference to embodiments described in detail later with reference to the accompanying drawings. In describing the present disclosure, when it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the subject matter of the present disclosure, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present disclosure and may vary according to the intention or custom of users or operators.

However, the present disclosure is not limited to the embodiments disclosed below, and may be implemented in various different forms. The present embodiments are provided only to make the present disclosure complete, and to completely inform the scope of the disclosure to those of ordinary skill in the art to which the present disclosure belongs, and the present disclosure is only defined by the scope of the claims. . Therefore, the definition should be made based on the contents throughout this specification.

1 shows a three-dimensional perspective view of a bone conduction device according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, the bone conduction apparatus 1000 may provide sound through a bone conduction method, and provide sound through an air conduction method through air. Complementing this can provide high-efficiency sound to the user, thereby giving high satisfaction to sound listening. Specifically, a speaker device for providing sound to a user needs to output sound in a low, mid, and high frequency range in a balanced manner. However, a general bone conduction speaker device that provides sound through bone conduction may attenuate vibration due to its characteristics, so that the sound characteristics of a low frequency range may be somewhat insufficient.

The bone conduction apparatus 1000 of the present disclosure generates vibration, and transmits sound in a bone conduction manner through the contact unit 110 in which the vibration generated by contacting the user's body in an integrated contact with the user's body, Alternatively, sound generated by vibration may be transmitted to the user through an air conduction method through the sound transmission unit 1100. In other words, it is possible to supplement the sound in the low-pitched range, which is somewhat insufficient in the bone conduction sound transmission, through the air conduction sound transmission. Accordingly, it is possible to provide a richer sound to the user by supplementing the bass sound and the leakage sound.

Hereinafter, a detailed configuration of components included in the bone conduction apparatus 1000 of the present disclosure and effects thereof will be described in more detail through the drawings attached to the present disclosure.

2 is an exploded view illustrating a detailed configuration of a bone conduction apparatus according to an embodiment of the present disclosure.

As shown in FIG. 2, the bone conduction device 1000 includes a housing 500, a vibration transmission unit 100, a vibration control member 600, a first voice coil 210, a first magnetic unit 310, and A first mount unit 400 and a sound transmission unit 1100 may be included. As shown in FIG. 2, components of the bone conduction apparatus 1000 are exemplary, and only some of the components may constitute the bone conduction apparatus 1000. In addition, additional component(s) in addition to the components may be included in the bone conduction apparatus 1000.

According to an embodiment of the present disclosure, the housing 500 may be formed to include an upper case 510 and a lower case 520. Specifically, a housing 500 including an inner space may be formed through an upper case 510 having an open upper end and a lower case 520 that can be coupled with a portion of the upper case 510. have. In this case, the upper case 510 and the lower case 520 may be provided in a shape corresponding to each other in order to form the housing 500 including the inner space when combined. For example, when the upper case 510 has a cylindrical shape having a diameter of 1 cm, the lower case 520 is provided in a shape that can be combined with a cylindrical shape having a diameter of 1 cm corresponding to the shape of the upper case 510 Can be. The description of specific values of the above-described upper case and lower case is only an example, and the present disclosure is not limited thereto.

In addition, vibration related to driving of the bone conduction device 1000 may be generated in the inner space of the housing 500. Specifically, components for driving the bone conduction apparatus 1000 may be located in the inner space of the housing 500. Vibration may be generated through the interaction of components in the inner space of the housing 500, and the generated vibration is transmitted in contact with the user's body or in a non-contact manner so that the user can hear the sound. I can. In this case, the positions at which the components are provided for interaction for generating vibration inside the housing 500 are as shown in FIG. 2, the vibration transmission unit 100, the vibration control member 600, and the first The voice coil 210, the first magnetic unit 310, and the first mount unit 400 may be in this order.

In addition, the housing 500 may include an inner region in which air flow can occur. In addition, vibration generated by the interaction of components in the inner space of the housing 500 may be canceled or amplified by the flow of air generated in response to the vibration in the inner area. Accordingly, leakage sound is removed by vibration generated inside the housing 500 or sound is amplified, so that better sound quality and rich sound can be provided to the user.

According to an embodiment of the present disclosure, the vibration transmission unit 100 may include a contact unit 110 and a diaphragm 130. Specifically, the vibration transmission unit 100 is a contact unit 110 and a contact unit that transmits the vibration generated by the interaction of components in the interior space of the housing 500 to the user in a bone conduction method through contact with the user's body. It may include a diaphragm 130 positioned in the lower direction of 110 and transmitting the vibration generated in the first voice coil 210 to the contact unit 110.

The contact unit 110 may be provided at the top of the bone conduction device 1000 in order to directly contact at least a portion of the user's body and transmit the vibration generated through the bone conduction device 1000. That is, the uppermost end of the bone conduction apparatus 1000 illustrated in FIG. 2 may be a part that contacts a user's body part. For example, the user's body that the contact unit 110 contacts to transmit sound to the user in a bone conduction method may be a portion of the user's temporal bone. That is, the contact unit 110 may contact the temporal bone, which is the bone closest to the user's inner ear, to deliver sound through direct vibration of the bone conduction method to the cochlea, which is a hearing organ, so that users with conductive hearing loss can also hear the sound. Can be set. Specifically, the contact unit 110 may receive vibration generated through the first voice coil 210 through the diaphragm 130, and directly contact the user's body part through a bone conduction method. Sound can be provided to the user.

In addition, the contact unit 110 may include one or more protrusions for concentrating the transmitted vibration and transmitting it to the user. The contact unit 110 may be made of a material having elasticity in order to more easily contact a part of the user's body (eg, the user's temporal bone). Further, a vibration transmission member 120 for transmitting vibration generated by the voice coil 210 may be provided on a lower surface adjacent to the contact unit 110. For example, the vibration transmission member 120 may be made of a material such as polyetherimide (PEI), polyphenylen sulfide (PPS), polyethylene terephthalate (PET), or polyethylene naphthalate (PEN). Specific descriptions of the material constituting the above-described vibration control member 600 are only examples, and the present disclosure is not limited thereto.

The contact unit 110 may be formed of, for example, at least one of silicone, rubber, and urethane. However, the contact unit is not limited to the above-described materials, and the material of the contact unit may include various materials capable of more closely contacting the user's body through a preset elastic modulus.

Specifically, referring to FIG. 8, the contact unit 110 may include a protrusion including one or more block regions 112 and one or more concave regions 111. In general, a bone conduction device for transmitting vibration to a user through a bone conduction method may contact the user's temporal bone vicinity. In this case, the vicinity of the user's temporal bone may have a non-uniform skin surface. Accordingly, there is a fear that the vibration provided through the speaker device may not be uniform because the speaker device that provides sound to the user through the bone conduction method cannot completely and uniformly contact a part of the user's body. Can obscure the transmission of the sound of The bone conduction apparatus 1000 of the present disclosure includes a contact unit 110 including a protrusion, and when one of the protrusions contacts a user, the vibration of the voice coil can be efficiently transmitted, thereby providing sound transmission performance to the user. You can increase it. The bone conduction apparatus 1000 of the present disclosure may contact the contact unit 110 including non-uniform protrusions with respect to an area that directly contacts the user's skin, so that the convexity of the contact unit 110 is primarily The part can directly contact the skin and transmit the vibration. In addition, it is possible to transmit the resonance (low frequency band) sound secondary indirectly through the concave portion of the contact unit 110 of the bone conduction apparatus 1000. That is, as the one or more block regions 112 and one or more concave regions 111 of the contact unit 110 are made of a material having an elastic force, they may more closely contact a part of the user's body, and the contact unit ( 110) By transmitting sound through resonance in the non-contact part of the user's body part, the user can receive rich sound in various sound ranges.

According to an embodiment of the present disclosure, the diaphragm 130 included in the vibration transmission unit 100 may be mounted on the housing 500. Specifically, the diaphragm 130 may be provided in a shape corresponding to the upper case 510 forming the housing 500, and may be exposed to the outside through an open upper end surface of the upper case 510. . That is, a part of the diaphragm 130 (for example, when the diaphragm has a cylindrical shape, the end of the outer circumferential surface of the cylinder) is fixedly coupled to a part of the upper case so that the diaphragm 130 may be mounted on the housing 500. . In addition, when the diaphragm 130 is mounted on the housing 500, the contact unit 110 may be provided in contact with the upper surface of the diaphragm 130. That is, the contact unit 110 may be mounted on the housing 500 by being fixed to the diaphragm 130.

In addition, the vibration control member 600 may be located on at least a part of the lower surface of the diaphragm 130, and the first voice coil 210 may be located on at least a part of the lower surface of the vibration control member 600. That is, the first voice coil 210 may be fixed to and positioned on the vibration control member 600, and the vibration control member 600 may be fixed to and positioned on the lower surface of the diaphragm 130.

According to an embodiment of the present disclosure, the diaphragm 130 may be positioned at the lower side of the contact unit 110 to transmit vibrations generated inside the housing 500 to the contact unit 110. Specifically, the diaphragm 130 is a first voice coil that is mounted on the housing 500 and generates a first vibration by vertical motion through interaction with the first magnetic unit 310 in the inner space of the housing 500 By being provided adjacent to 210, the first vibration generated through the first voice coil 210 may be transmitted to the contact unit 110. The first vibration may be a vibration generated by the first voice coil 210. In addition, as shown in FIG. 7 of the diaphragm 130, at least a portion may be provided in a shape having a bent portion 131. The bent portion 131 of the diaphragm 130 may prevent deterioration of the performance of the device in the process of transmitting the vibration generated from the first voice coil 210 to the contact unit 110. Specifically, the diaphragm 130 may be mounted on the upper case 510, and continuous vibration to the upper case 510 in the process of transmitting the first vibration generated from the first voice coil 210 to the contact unit 110 Can be authorized. When such vibration is continuously transmitted to the upper case 510, there is a concern that performance deterioration of the device may occur due to the vibration. As at least a part of the diaphragm 130 includes the bent portion 131, vibration transmitted to the upper case 510 on which the diaphragm 130 is mounted may be minimized. That is, the diaphragm 130 minimizes the lateral vibration transmitted from the lower side of the diaphragm 130 through the bent portion 131 in the vertical direction transmitted to the upper case 510 in the horizontal position, It is possible to prevent deterioration of the device performance due to exposure to continuous vibration.

That is, the diaphragm 130 may be positioned at the lower side of the contact unit 110 located at the top of the bone conduction apparatus 1000 to transmit the vibration generated in the housing 500 to the contact unit 110. In this case, the contact unit 110 may provide sound to the user in a bone conduction method as the contact unit 110 provides the vibration received through the diaphragm 130 adjacent to a part of the user's body.

According to an embodiment of the present disclosure, the first voice coil 210 may be mounted on the lower side of the diaphragm 130. Specifically, the vibration control member 600 may be coupled and fixed to at least a portion of the lower surface of the diaphragm 130, and the first voice coil 210 may be coupled and fixed to at least a portion of the lower surface of the vibration adjustment member 600. I can. That is, the first vibration generated through the first voice coil 210 may be transmitted from the first voice coil 210 to the diaphragm 130 through the vibration control member 600.

In addition, the first voice coil 210 may be configured in a cylindrical shape with open upper and lower surfaces, and may have conductivity. Here, the conductivity may mean a property that current flows easily. Specifically, the first voice coil 210 may include a cylindrical plate and a coil surrounding the outer circumferential surface of the plate. The coil surrounding the plate may be made of at least one of materials such as copper, aluminum, silver, gold, or alloy. However, it is not limited thereto.

In addition, the first voice coil 210 may receive an external electric signal (eg, an AC signal). In addition, when receiving an electric signal, the first voice coil 210 may generate first vibration by interacting with the first magnetic unit 310 according to the direction, strength, and frequency of the received electric signal. Specifically, the first voice coil 210 may be located between the first inner magnet 311 and the first outer magnet 312 of the first magnetic unit 310, and when receiving an electrical signal from the outside , The first vibration may be generated as it moves up and down through the interaction with the magnetic field generated by the first inner magnet 311 and the first outer magnet 312.

That is, the first voice coil 210 may generate the first vibration by vertical motion through interaction with the first magnetic unit 310 based on the received electric signal.

In addition, the first vibration generated through the interaction of the first voice coil 210 with the first magnetic unit 310 is the contact unit of the vibration transmission unit 610 through the vibration control member 600 and the diaphragm 130 It may be transmitted to 110, and the contact unit 110 may contact a part of the user's body and transmit sound to the user through a bone conduction method.

According to an exemplary embodiment of the present disclosure, the first magnetic unit 310 may be mounted in at least one area of the inner space of the housing 500. Specifically, the first magnetic unit 310 may be fixed to the upper surface of the first mounting unit 400 and mounted in at least one area of the inner space of the housing 500. In this case, the first mount unit 400 may be fixed to the lower case 520 forming the housing 500, and is centered on the upper surface of the first mount unit 400 fixed to the lower case 520 The lower plate 440 may be fixed through the shaft 420. That is, the first magnetic unit 310 may be positioned on the upper surface of the lower plate 440 and fixed to a portion of the inner space of the housing 500. Accordingly, the first magnetic unit 310 is in a region of the housing 500 through the first mount unit 400 located at the lower side of the first magnetic unit 310 in the inner space of the housing 500. Mounted, it is possible to interact with the first voice coil 210 to generate the first vibration.

In addition, the first magnetic unit 310 includes a first outer magnet 312 including a first inner magnet 311 in the form of a cylinder or a polygonal column and an accommodation space for accommodating the first inner magnet 311 Can include. In addition, the first magnetic unit 310 may be formed such that the first voice coil 210 is positioned in a space between the first inner magnet 311 and the first outer magnet 312. That is, when the first magnetic unit 310 and the first voice coil are provided in the inner space of the housing 500, the first voice coil 210 may have a shape surrounding the outer circumferential surface of the first internal magnet 311, and , A first external magnet 312 may surround the outer peripheral surface of the first voice coil 210.

In addition, the first magnetic unit 310 may be provided inside the housing 500 to form a magnetic field. Specifically, the first magnetic unit 310 may be composed of a material having a magnetic force, for example, Neodymium (Neodymium) magnet, ferrite (Ferrite) magnet, samarium cobalt (Samariun cobalt) magnet, Aliko (AINICo) It may include magnets and rubber magnets. However, it is not limited thereto.

In addition, the first magnetic unit 310 may generate a first vibration through interaction with the first voice coil 210. In detail, in the inner space of the housing 500, the first inner magnet 311 and the first outer magnet 312 may be provided so that the first voice coil 210 is positioned therebetween, and the first voice coil ( When 210) receives an electrical signal (eg, an AC signal) from the outside, it occurs in the first inner magnet 311 and the first outer magnet 312 located inside and outside the first voice coil 210, respectively. The first vibration may be generated through the magnetic field.

In addition, the first internal magnet 311 and the first external magnet 312 of the first magnetic unit 310 react with the first voice coil 210 to vibrate the first voice coil 210 through a magnetic field. , Movement of air inside the housing 500 may be generated by a reaction of the vibration of the first voice coil 210. In this case, sound may be generated through the second vibration related to the movement of air inside the housing 500, and the generated sound may be transmitted to the user through the sound transmission unit 1100 in an air conduction manner.

That is, the sound generated through the second vibration generated as the first magnetic unit 310 interacts with the first voice coil 210 may be transmitted to the user in a non-contact manner through the sound transmission unit 1100. .

According to an exemplary embodiment of the present disclosure, the vibration adjusting member 600 may reduce the first vibration generated from the first voice coil 210 located at the lower side of the vibration adjusting member 600 to the upper part of the vibration adjusting member 600. It can be transmitted to the diaphragm 130 located on the side. In addition, the vibration adjusting member 600 may be positioned between the first voice coil 210 and the diaphragm 130 to adjust the first vibration generated in the first voice coil 210.

In addition, the vibration control member 600 may control the characteristics of the first vibration generated from the first voice coil 210 and transmit it to the diaphragm 130. In addition, the vibration control member 600 may adjust the characteristics of the first vibration generated from the first voice coil 210 and transmitted to the diaphragm corresponding to the provided area. The first vibration characteristic of the diaphragm 130 may be adjusted according to the area of the vibration control member 600. For example, a specific sound range of the first vibration transmitted to the diaphragm 130 may be emphasized according to the area of the vibration control member 600. That is, it is possible to adjust the characteristics of the sound provided to the user through the bone conduction method according to the area in which the vibration control member 600 is provided.

According to an exemplary embodiment of the present disclosure, the first mount unit 400 is located on the lower side of the first magnetic unit 310 in the inner space of the housing 500 to mount the first magnetic unit 310. I can. Specifically, the first magnetic unit 310 includes a first inner magnet 311 having a cylindrical or polygonal column shape and a first outer magnet 312 including an accommodation space for accommodating the first inner magnet 311. The first mounting unit 400 may include the first magnetic unit 310 adjacent to the lower surface of the first inner magnet 311 and the first outer magnet 312 and the housing 500 It can be mounted in one area of the interior space. In this case, a lower plate 410 may be provided between the first magnetic unit 310 and the first mount unit 400, and the first mount unit 400 and the lower plate 410 may be provided with a central axis 420 ) Can be fixedly coupled.

In addition, the first mount unit 400 extends in the direction of the center of the bone conduction apparatus 1000 and may include one or more rods having a direction of a shortest distance to the center and a predetermined angle. In addition, the first mount unit 400 may be mounted with the first magnetic unit 310 through one or more rods to reduce lateral vibration of the first magnetic unit.

More specifically, referring to FIG. 6, the first mount unit 400 may include one or more rods 402 having a predetermined angle in the direction of the center of the bone conduction device. 1 The magnetic unit 310 can be mounted. Accordingly, when vibration is generated in the housing 500 as the first magnetic unit 310 interacts with the first voice coil 210, the vibration in the lateral direction of the first magnetic unit 310 is prevented. Can be reduced. That is, the lateral vibration of the vibration generated inside the housing 500 can be reduced through the first mount unit 400, and thus, in the case of attempting to provide sound through a bone conduction method through vibration, leakage is blocked. Clear sound can be provided.

According to an embodiment of the present disclosure, the lower plate 410 may be formed to include a perforated hole 411, and may be fixed to the first mount unit 400 by a central axis 420 penetrating the perforated hole. have. In this case, the perforated hole 411 of the lower plate 410 may be formed at a position corresponding to the perforated hole 401 of the first mount unit 400. In addition, the lower plate 410 is located between the first magnetic unit 310 and the first mount unit 400, and is generated as the first magnetic unit 310 and the first voice coil 210 interact. The resulting vibration may be transmitted to the first mount unit 400.

According to an embodiment of the present disclosure, the central axis 420 may couple and fix the first mount unit 400 and the lower plate 410. Specifically, the central axis 420 passes through the perforations formed in the center of the first mount unit 400 and the perforations formed in the center of the lower plate 410, and the first mount unit 400 and the lower plate 410 Can be fixed. Accordingly, when the first mount unit 400 is fixed to at least a portion of the lower case 520 forming the housing 500, the lower plate 410 and the first mounting unit 400 are mounted on the upper surface of the first mount unit 400. 1 The magnetic unit 310 may be mounted.

According to an embodiment of the present disclosure, the bone conduction apparatus 1000 may include a wearable device 1400 and a detachable detachable mechanism 1300 provided in the housing 500. The detachment mechanism 1300 may be provided on at least one surface of the housing 500 to couple and separate the wearable device 1400 and the housing 500. The detachment mechanism 1300 fixes and separates the bone conduction device 1000 to the outer surface of the wearable device 1400 through at least one of a clip detachment method, a magnet detachment method, a band detachment method, or an adsorption detachment method. I can make it. A specific description of the above-described detachment mechanism is merely an example, and the present disclosure may include various types of detachment methods capable of coupling and separating the bone conduction apparatus 1000 to the wearable device 1400. The wearable device 1400 may be worn on a user's body and may refer to an electronic device capable of performing some functions of a computing device. The wearable device 1400 may refer to an electronic device that can be worn on the user's body or clothing so that the user can freely use it while moving or performing. The wearable device 1400 may be, for example, a device in the shape of glasses, a hair band, or a helmet. The wearable device 1400 may be coupled to the bone conduction device 1000 through the detachment mechanism 1300 of the bone conduction device 1000, and may be combined with the bone conduction device 1000 to the user's body or clothing. When worn, the bone conduction device 1000 may be positioned adjacent to the user's temporal bone. That is, when the bone conduction apparatus 1000 is coupled to the wearable device 1400 through the detachment mechanism 1300, the contact unit 110 may contact the user's temporal bone and transmit sound to the user through a bone conduction method. In addition, the sound transmission unit 1100 may be positioned in a direction facing the user's ear canal and may transmit sound through an air conduction method.

For a specific example, as illustrated in FIG. 10, the wearable device 1400 may be a device in the shape of glasses. The bone conduction apparatus 1000 may be coupled to the wearable device 1400 through a detachment mechanism 1300 provided on at least a part of the outer surface of the housing 500. In addition, the glasses-shaped wearable device 1400 may be worn on the user's body while being coupled to the bone conduction apparatus 1000. When the wearable device 1400 is worn on the user's body while being coupled to the bone conduction apparatus 1000, the bone conduction apparatus 1000 may be located on the user's temporal bone. That is, the contact unit 110 of the bone conduction apparatus 1000 may contact the user's temporal bone. In addition, when the bone conduction apparatus 1000 is positioned on the user's temporal bone, the sound transmission unit 1100 may be positioned in a direction opposite to the user's external intention.

In other words, the bone conduction apparatus 1000 is located on the user's temporal bone through the connection with the wearable device 1400 through the detachment mechanism 1300, and directly contacts the user's temporal bone with the bone conduction method. Sound may be transmitted, and at the same time, sound may be transmitted in a non-contact sound conduction method through the sound transmission unit 1100 positioned in a direction opposite to the user's ear canal.

According to an embodiment of the present disclosure, the sound transmission unit 1100 may be provided on at least a part of the housing 500. The sound transmission unit 1100 may be formed with one or more perforations in at least one of the upper case 510 and the lower case 520 forming the housing 500. The sound transmission unit 1100 formed of one or more perforations may transmit sound generated through vibrations related to the movement of air inside the housing 500 to a user in an air conduction manner.

One or more perforations may be provided in a shape such that sound generated through vibration inside the housing 500 has directivity. Specifically, one or more perforations may be provided in a shape in which a cross-sectional area is reduced from an inner direction to an outer direction of the housing 500 in order to concentrate sound generated inside the housing 500. The inner direction of the housing 500 may refer to the inside of the bone conduction apparatus 1000, and the outer direction may refer to a direction in which a user to which sound is transmitted is located. For example, one or more perforations may be a cylinder having a structure in which the cross-sectional area forming a circle is narrowed in the outer direction of the bone conduction device 1000, and the structure in which the cross-sectional area forming a diamond is narrowed in the outer direction of the bone conduction device 1000 It may be a hexahedron of The specific description of the shape of one or more perforations described above is merely an example, and the present disclosure is not limited thereto.

In addition, the one or more perforations may include a central perforation positioned at a center of the one or more perforations and an outer perforation positioned at an outer shell of the one or more perforations. In addition, the outer perforation may be provided with a cross-sectional area smaller than the central perforation. For a specific example, as shown in FIG. 11, one or more perforations included in the sound transmission unit 1100 may be provided with five perforations, and among the five perforations, the central perforation 1101 located in the center and the outer shell It may include two outer perforated holes 1102 located. In this case, the outer perforation 1102 may be provided with a smaller cross-sectional area than the central perforation 1101. That is, as the outer perforated hole 1102 is provided with a smaller cross-sectional area than the central perforated hole 1101, the sound generated inside the housing 500 and transmitted to the user through an air delivery method can be minimized from spreading to the outside and has directivity. Can be delivered to have.

That is, the sound generated based on the vibration related to the movement of the air inside the housing 500 (that is, the second vibration related to the reaction to the first vibration) may be concentrated and transmitted to the user through an air delivery method. In other words, the sound that spreads to the outside is minimized through the structure of one or more perforations as described above (i.e., a structure in which the cross-sectional area decreases toward the outside and a structure in which the outer perforation is formed with a smaller cross-sectional area than the central perforation) As the sound can be concentrated, the efficiency of sound transmission can be increased.

According to an embodiment of the present disclosure, the bone conduction apparatus 1000 may include an adjustment mechanism 1200. The adjustment mechanism is provided in the housing 500 and may include an adjustment mechanism for adjusting the direction and size of the sound transmitted through the sound transmission unit 1100. More specifically, the adjustment mechanism 1200 may adjust the sound transmission direction and size of the sound transmission unit 1100 through mechanical coupling between the upper case 510 and the lower case 520 forming the housing 500.

The bone conduction apparatus 1000 of the present disclosure is located in the user's temporal bone to provide sound by transmitting the vibration to the cochlea through a bone conduction method for the first vibration, and transmits the sound generated based on the second vibration in an air conduction method It can be transmitted in the direction of the user's external ear canal. In this case, as the physical condition of each of the plurality of users is different, or the detailed location that each user prefers to receive the vibration of the bone conduction method is slightly different, the sound transmission unit 1100 for transmitting sound through the air conduction method. ) May require fine adjustments regarding the direction of sound output. That is, the adjustment mechanism 1200 enables fine adjustment of the output direction of the sound transmitted through the air conduction method, thereby increasing the efficiency of sound transmission. In addition, the adjustment mechanism 1200 may be utilized to block air-conducting sound according to inevitable surrounding conditions (eg, a space such as a library in which noise exposure should be minimized).

In more detail, the adjustment mechanism 1200 may allow rotation within a predetermined angle with respect to at least one of the upper case 510 and the lower case forming the housing 500. Further, the adjustment mechanism 1200 may restrict rotation other than a predetermined angle through a rotation limiting portion formed on at least one of the upper case 510 and the lower case 520.

For example, as shown in FIG. 11, when the sound transmission unit 1100 is formed in the upper case 510, the adjustment mechanism 1200 for the upper case 510 is centered on the lower case 520 It can allow rotation within a predetermined angle. In this case, a rotation limiting part for limiting rotation of the upper case 510 other than a predetermined angle may be provided in one area of the lower case 520. A detailed description of the position where the above-described sound transmission unit and the rotation limiting unit are provided is only an example, and the present disclosure is not limited thereto.

In addition, the adjustment mechanism 1200 may include a blocking unit for blocking sound transmitted to one or more perforations formed in at least one of the upper case 510 and the lower case 520. The blocking portion has an area corresponding to one or more perforations, and may be formed within a predetermined angle.

For a specific example, when the sound transmission unit 1100 including one or more perforations is formed in the lower case 520, the adjustment mechanism 1200 is a dictionary for the lower case 520 based on the upper case 510. It can allow rotation within a determined angle. In this case, a blocking portion having an area corresponding to one or more perforations formed in the lower case 520 may be positioned in one area of the upper case 510. A detailed description of the position where the above-described sound transmission unit and the rotation limiting unit are provided is only an example, and the present disclosure is not limited thereto.

That is, when the direction of the sound output of the lower case 520 is adjusted through the adjustment mechanism 1200, the blocking unit located within a predetermined angle prevents one or more perforations of the sound transmission unit 1100 provided in the lower case 520. By blocking it, it is possible to block the transmission of sound through the air conduction method. In other words, the user can adjust the sound output direction of the sound conduction method through rotation through the adjustment mechanism to receive clearer sound. In addition, the user may allow only bone conduction sound transmission by blocking the sound conduction method through rotation through the adjustment mechanism 1200 for convenience.

According to an embodiment of the present disclosure, the bone conduction apparatus 1000 may include a sound receiver that receives ambient sound. Specifically, the sound receiving unit may be provided outside the housing 500 to receive ambient sound (eg, ambient noise). In this case, the bone conduction apparatus 1000 may adjust the size of the sound output through the air conduction method in response to the recognized sound size. In detail, the bone conduction apparatus 1000 controls to amplify the first vibration generated in the first voice coil 210 when the size of the ambient sound is less than a predetermined threshold, and air inside the housing 500 The third vibration generated in the second voice coil 220 may be controlled to attenuate the second vibration related to the movement of. That is, the bone conduction apparatus 1000 acquires the ambient sound acquired through the sound receiving unit, and when the size of the ambient sound is less than a predetermined threshold, amplifies the first vibration and transmits the sound through the bone conduction method. It is possible to increase the size of the sound and attenuate the second vibration to reduce the size of sound transmitted through the air conduction method. In other words, in response to an environment with low ambient noise, the volume of sound transmitted by the air conduction method output to the outside may be adjusted to a relatively small amount, and the size of sound transmitted by the bone conduction method may be relatively large.

In other words, by minimizing the size of the sound (i.e., sound that provides noise to the outside) transmitted in an air conduction method that can affect others without separate manipulation of the user in an environment with low noise (eg, a library) , Can provide convenience to users. At the same time, it is possible to increase the size of the sound transmitted by the bone conduction method (that is, the sound that does not provide noise to the outside) while listening to the sound having the same size as before.

3 is a side cross-sectional view of a bone conduction device according to an embodiment of the present disclosure. For features that overlap with the features described above with respect to FIG. 2 among the features of the content illustrated in FIG. 3, the content described in FIG. 2 is referred to, and a description thereof will be omitted here.

According to an embodiment of the present disclosure, the first voice coil 210 may receive an electric signal from the outside. In addition, when receiving an electric signal, the first voice coil 210 is positioned between the first inner magnet 311 and the first outer magnet 312 of the first magnetic unit 310 to provide the first inner magnet. By interacting with 311 and the magnetic field generated from the first external magnet 312, vibration may be generated in the inner space of the housing 500. That is, by the interaction with the magnetic field generated by the first voice coil 210 and the first magnetic unit 310, the first vibration for vertical motion is generated with respect to the first voice coil 210, and the generated The first vibration may be transmitted to the vibration control member 600 adjacent to the first voice coil 210. In this case, the vibration control member 600 may adjust the first vibration generated in the first voice coil 210 and transmit it to the vibration transmission unit 100. In addition, the vibration transmission unit 100 may directly contact a part of the user's body to provide vibration for the first voice coil 210 received through the vibration control member 600 to the user in a bone conduction method. .

That is, by directly contacting and transmitting the vibration generated in the first voice coil 210 to a part of the user's body (eg, temporal bone), the first vibration may be transmitted to the user in a bone conduction method. Accordingly, the user may receive sound through vibration of the bone conduction method.

According to an embodiment of the present disclosure, when receiving an electric signal, the first voice coil 210 is between the first inner magnet 311 and the first outer magnet 312 of the first magnetic unit 310. As it is positioned and interacts, vibration may be generated in the inner space of the housing 500. Specifically, first vibration for vertical motion is generated with respect to the first voice coil 210 by the interaction of the first voice coil 210 and the first magnetic unit 310, and the first voice coil ( The second vibration may occur due to the movement of air in the inner space of the housing 500 due to a reaction against the first vibration of 210). The second vibration related to the movement of air generated in the inner space of the housing 500 reduces the vibration generated in the inner space of the housing 500 or occurs in the first voice coil 210 and thus the diaphragm 130 ) Can amplify the vibration transmitted. Accordingly, leakage sound due to vibration can be reduced, and since the first vibration of the first voice coil 210 is amplified and transmitted to the user, a clearer sound can be provided.

In addition, a sound corresponding to the second vibration may be generated as the air movement occurs in the inner space of the housing 500, and the generated sound is transmitted to the user through the sound transmission unit 1100 including one or more perforations. It can be delivered by air conduction.

That is, when the bone conduction apparatus 1000 according to an embodiment of the present disclosure provides sound to a user through a bone conduction method that vibrates by contacting a part of the user's body, the characteristics of the sound in the low-pitched range according to the attenuation of the vibration This may eliminate concerns that may be somewhat lacking. In other words, the leakage sound is reduced through the second vibration related to the flow of air in the inner space of the housing 500 generated in response to the reaction of the first vibration of the first voice coil 210, or the first voice coil By amplifying the magnitude of the vibration of 210, it is possible to provide a richer sound to the user by supplementing low-frequency acoustic characteristics and sound leakage.

4 is an exploded view for explaining a detailed configuration of a bone conduction apparatus according to another embodiment of the present disclosure. For features that overlap with the features described above with respect to FIGS. 2 and 3 among the features of the content illustrated in FIG. 4, the content described in FIG. 2 is referred to, and a description thereof will be omitted here.

As shown in Figure 4, the bone conduction device 1000 related to another embodiment of the present disclosure includes a housing 500, a vibration transmission unit 100, a vibration control member 600, a first voice coil 210, It may include a first magnetic unit 310, a second magnetic unit 320, a second voice coil 220, a second mount unit 400, and a sound transmission unit 1100. Components of the bone conduction apparatus 1000 illustrated in FIG. 4 are exemplary, and only some of the components may constitute the bone conduction apparatus 1000. In addition, additional component(s) in addition to the components may be included in the bone conduction apparatus 1000.

According to an embodiment of the present disclosure, the magnetic unit 300 may include a first magnetic unit 310 and a second magnetic unit 320. In addition, when the magnetic unit 300 is provided including the first magnetic unit 310 and the second magnetic unit 320, it is for mounting the first magnetic unit 310 and the second magnetic unit 320 It may include an intermediate plate 800. In this case, the first magnetic unit 310 may include a first inner magnet 311 and a first outer magnet 312, and the second magnetic unit 320 may include a second inner magnet 321 and a second It may include an external magnet 322.

In addition, in the space between the first inner magnet 311 and the first outer magnet 312 and the second inner magnet 321 and the second outer magnet 322, the first voice coil 210 and the second voice coil Each of the 220 can be located.

In addition, the first magnetic unit 310 may generate a first vibration through interaction with the first voice coil 210. In detail, the first voice coil 210 may be positioned between the first inner magnet 311 and the second outer magnet 322 provided in the inner space of the housing 500, and the first voice coil ( When 210) receives an electrical signal (eg, an AC signal) from the outside, it occurs in the first inner magnet 311 and the first outer magnet 312 located inside and outside the first voice coil 210, respectively. The first vibration may be generated through the magnetic field. That is, the first vibration in the vertical direction may be generated in the first voice coil 210. In this case, the first vibration may be transmitted to the vibration adjusting member 600 located adjacent to the upper surface of the first voice coil 210, and the vibration adjusting member 600 may occur in the first voice coil 210. The first vibration may be transmitted to the vibration transmission unit 100.

In addition, the first internal magnet 311 and the first external magnet 312 of the first magnetic unit 310 react with the first voice coil 210 to give the first voice coil 210 to the first voice coil 210 through a magnetic field. A second vibration related to the movement of air in the interior space of the housing 500 by the movement of the first magnetic unit 310 corresponding to the reaction of the first vibration of the first voice coil 210 and generating vibration Can occur. In addition, vibration may occur in the intermediate plate 800.

In addition, the second inner magnet 321 and the second outer magnet 322 of the second magnetic unit 320 reacts with the second voice coil 220 to thirdly affect the second voice coil 220 through a magnetic field. Vibration is generated, and the vibration of the second voice coil 220 may affect the second vibration related to the flow of air in the inner space of the housing 500. In this case, the second voice coil 220 may be mounted in an area of the inner space of the housing 500 through the second mount unit 400.

That is, each of the first magnetic unit 310 and the second magnetic unit 320 interacts with each of the first and second voice coils 210 and 220 to prevent the movement of air in the interior space of the housing 500. The first magnetic unit 310 and the intermediate plate 800 that mounts the second magnetic unit 320 are vibrated, thereby controlling the movement of air in the inner space of the housing 500 more precisely. can do.

Specifically, the first electric signal and the second electric signal supplied to each of the first voice coil 210 and the second voice coil 220 may have different current magnitudes, frequencies, and operation times. The movement of air in the inner space of the housing 500 may be more precisely controlled through the difference in characteristics between the electric signals supplied to each of the first voice coil 210 and the second voice coil 220.

In detail, the first electric signal and the second electric signal supplied to each of the first voice coil 210 and the second voice coil 220 to generate vibration in the housing 500 are the first magnetic unit. 310 and the second magnetic unit 320 may be generated to have different magnitudes of currents, different frequencies, and different operating times so as to generate different vibrations through interactions with each of them.

For example, with respect to the second vibration related to the air vibration in the housing, the third vibration may be for reducing or amplifying the second vibration.

Therefore, by controlling the third vibration by the second voice coil 220 to affect the second vibration related to the air flow in the housing, it is possible to provide higher quality sound by supplementing the leakage sound and the sound in a specific sound range. .

For another example, operation times of the first electric signal supplied to the first voice coil 210 and the second electric signal supplied to the second voice coil 220 may be set differently. The second electrical signal supplied to the second voice coil 220 may reduce vibration of the magnetic unit generated by the interaction between the first voice coil 210 and the magnetic unit.

Also, in another example, the operation time of the first electric signal supplied to the first voice coil 210 may be set longer than the operation time of the second electric signal supplied to the second voice coil 220. In this case, the first voice coil 210 may receive a first electric signal and interact with the first magnetic unit 310 to generate a first vibration for the first voice coil 210, and the first voice In response to the first vibration of the coil 210, the movement of the first magnetic unit 310 may generate a second vibration related to the movement of the air inside the housing 500. In addition, by receiving a second electric signal from the second voice coil 220 and interacting with the second magnetic unit 320, a third vibration may be generated for the second voice coil 220, and the third vibration is the housing. (500) It can cause the movement of air inside. However, since the operation time of the first electric signal is set longer than the operation time of the second electric signal, the supply of the second electric signal to the second voice coil 220 is preferentially stopped. The flow of air may be more affected by the vibration generated through the first voice coil 210. That is, the flow of air inside the housing 500 may be controlled by differently determining the operating times of the electric signals supplied to each voice coil. By controlling the flow of air in the inner space of the housing 500, it is possible to control the leakage sound that may occur inside the housing 500, and provide a richer sound by amplifying the size of the sound corresponding to vibration and vibration. I can. The above-described specific descriptions of the electric signal are only examples, and the present disclosure is not limited thereto.

In addition, when the first voice coil 210 and the second voice coil 220 interact with each of the first magnetic unit 310 and the second magnetic unit 320, it will be provided to generate vibrations of different magnitudes. I can. Specifically, each of the first voice coil 210 and the second voice coil 220 may include a plate having a cylindrical shape and a coil surrounding an outer circumferential surface of the plate. In this case, each of the first voice coil 210 and the second voice coil 220 may have different rotational numbers of coils wound around each plate in order to generate different vibrations in response to an electric signal. When the number of rotations of each coil constituting the first voice coil 210 and the second voice coil 220 is different, when an electric signal is provided, the first magnetic unit 310 and the second magnetic unit 320 are mutually Can act to produce vibrations of different magnitudes.

For example, the number of revolutions of the coil wound around the plate of the first voice coil 210 is 1000 times, the number of revolutions of the coil wound around the plate of the second voice coil 220 is 500 times, and the first voice coil 210 and When the second voice coil 220 interacts with each of the first magnetic unit 310 and the second magnetic unit 320 to generate vibration, the magnitude of the vibration generated in the first voice coil 210 is second It may be greater than the magnitude of vibration generated in the voice coil 220. A detailed description of the number of rotations of the coils wound around each voice coil described above is merely an example, and the present disclosure is not limited thereto.

According to an embodiment of the present disclosure, the second mount unit 400 may mount the second voice coil 220 inside the bone conduction apparatus 1000. Specifically, the second mount unit 400 may be positioned at the lower end of the second voice coil 220 on the inner space of the housing 500 to mount the second voice coil 220. In this case, a lower plate 900 may be provided between the second voice coil 220 and the second mount unit 400, and the second mount unit 400 and the lower plate 900 may be provided with a central axis 420 ) Can be fixedly coupled.

In addition, the second mount unit 400 extends in the direction of the center of the bone conduction device, and may include one or more rods having a direction of the shortest distance to the center and a predetermined angle. In addition, the second mount unit 400 may be mounted with the magnetic portion through one or more rods to reduce lateral vibration of the magnetic portion.

5 is a side cross-sectional view of a bone conduction device related to another embodiment of the present disclosure. For features that overlap with the features described above with respect to FIGS. 2 to 5 among the features of the content illustrated in FIG. 5, the content described in FIG. 2 is referred to, and a description thereof will be omitted here.

According to an embodiment of the present disclosure, each of the first voice coil 210 and the second voice coil 220 may receive an electric signal from the outside. In addition, when the first voice coil 210 and the second voice coil receive an electric signal, the first magnetic unit 310 between the first inner magnet 311 and the first outer magnet 312 and the second As it is located between the second inner magnet 321 and the second outer magnet 322 of the magnetic unit 320 and interacts with the magnetic field generated from each inner magnet and the outer magnet, the inner space of the housing 500 Can generate vibration.

The first voice coil 210 interacts with the magnetic field generated in the first magnetic unit 310 to generate a first vibration for vertical motion with respect to the first voice coil 210, and the generated first vibration Silver may be transmitted to the vibration control member 600 adjacent to the first voice coil 210. In addition, the vibration transmission unit 100 may directly contact a part of the user's body and provide the first vibration for the first voice coil 210 received through the vibration control member 600 to the user in a bone conduction method. I can.

That is, by directly contacting and transmitting the vibration generated in the first voice coil 210 to a part of the user's body (eg, temporal bone), the vibration may be transmitted to the user in a bone conduction method. Accordingly, the user may receive sound through vibration of the bone conduction method.

In addition, when vibration occurs in the first voice coil 210, a second vibration related to the movement of air may occur in the inner space of the housing 500 due to a reaction against the vibration of the first voice coil 210. have. The movement of air generated in the inner space of the housing 500 may reduce vibrations generated in the inner space of the housing 500 or may amplify the vibrations generated in the first voice coil 210. Accordingly. Leakage due to vibration can be reduced, and since the vibration of the first voice coil 210 is amplified and transmitted to the user, a clearer sound can be provided.

In addition, the second voice coil 220 may generate a third vibration for vertical motion with respect to the second voice coil 220 by the interaction with the magnetic field generated in the second magnetic unit 320. In addition, air movement may occur in the inner space of the housing 500 due to a reaction of the third vibration to the second voice coil 220. In this case, the movement of the air inside the housing 500 generated by the third vibration with respect to the second voice coil 220 is the housing 500 generated by a reaction of the first vibration with respect to the first voice coil 210. ) It can correspond to the movement of the air inside. That is, the movement of air inside the housing generated by the second voice coil 220 attenuates the leakage sound caused by the first vibration by the first voice coil 210 or the first vibration of the first voice coil 210 Can be amplified. Specifically, the first voice coil 210 is mounted through the diaphragm 130 and may be provided in the direction of the central axis from the upper end of the housing 500, and the second voice coil 220 is a second mounting unit 400 ), and may be provided in the direction of the central axis from the lower end of the housing 500. That is, when an electric signal is supplied to each voice coil as the direction in which each voice coil is provided is different, air generated by a reaction reaction of vibration to each of the first voice coil 210 and the second voice coil 220 The flow of can be created in opposite directions.

In addition, the electric signals (ie, the first electric signal and the second electric signal) provided to each voice coil may be different, or the number of rotations of the sensing coil may be different on the plates of the voice coils 210 and 220. That is, the first voice coil 210 and the second voice coil 220 are differently provided to each of the electric signals, or through the different number of rotations of the coils wound around the plate of each voice coil. The flow may be induced more precisely, and accordingly, vibration transmitted through the bone conduction method may be amplified or leakage sound may be reduced to provide high quality sound. FIG. 9A is an exemplary embodiment of the present disclosure. It shows an exemplary diagram for explaining the vibration transmission process of the bone conduction device related to.

According to an embodiment of the present disclosure, the first voice coil 210 may receive an electric signal from the outside. In addition, when receiving an electric signal, the first voice coil 210 is positioned between the first inner magnet 311 and the first outer magnet 312 of the first magnetic unit 310 to provide the first inner magnet. As 311 interacts with the magnetic field generated from the external magnet 312, a first vibration may be generated 30 in the first voice coil 210. That is, by the interaction with the magnetic field generated by the first voice coil 210 and the first magnetic unit 310, the first vibration for vertical motion is generated with respect to the first voice coil 210 (30), The generated first vibration may be transmitted to the vibration control member 600 adjacent to the first voice coil 210. In this case, the vibration control member 600 may reduce at least some of the vibration generated in the first voice coil 210 and transmit it to the vibration transmission unit 100. In addition, the vibration transmission unit 100 directly contacts a part of the user's body and provides the first vibration for the first voice coil 210 received through the vibration control member 600 to the user in a bone conduction method ( 20) You can.

That is, by directly contacting and transmitting the first vibration generated in the first voice coil 210 to a part of the user's body (eg, temporal bone), the vibration may be transmitted to the user in a bone conduction method. Accordingly, the user may receive sound through vibration of the bone conduction method.

9B is a diagram illustrating an example for explaining a sound transmission process of the bone conduction device according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, when receiving an electric signal, the first voice coil 210 is between the first inner magnet 311 and the first outer magnet 312 of the first magnetic unit 310. As it is positioned and interacts, vibration may be generated in the inner space of the housing 500. Specifically, first vibration for vertical motion is generated with respect to the first voice coil 210 by the interaction of the first voice coil 210 and the first magnetic unit 310, and the first voice coil ( A second vibration related to the movement of air may be generated in the inner space of the housing 500 by the movement of the magnetic portion corresponding to the reaction of the first magnetic unit 310 to the first vibration of 210). The second vibration related to the movement of the air generated in the inner space of the housing 500 reduces the vibration generated in the inner space of the housing 500 or reduces the first vibration generated in the first voice coil 210. Can be amplified. Accordingly, leakage of vibration due to vibration may be reduced, and since the vibration of the first voice coil 210 is amplified and transmitted to the user, a clearer sound may be provided.

In addition, as the air movement occurs in the interior space of the housing 500, a sound corresponding to the second vibration 50 may be generated, and the generated sound is transmitted to the user through at least one perforation of the sound transmission unit 1100. It can be delivered 40 in an air conduction manner.

That is, the bone conduction apparatus 1000 may transmit sound to the user through the bone conduction method described with reference to FIG. 9A and the air conduction method described with reference to FIG. 9B.

Accordingly, in the case of providing sound to a user through a bone conduction method in which a part of the user's body is vibrated by contacting a part of the user's body, it is possible to eliminate a concern that the characteristics of low-pitched sound may be somewhat insufficient due to attenuation of the vibration. In other words, the leakage noise is reduced through the flow of air in the inner space of the housing 500 generated in response to the reaction of the vibration of the first voice coil 210, or the magnitude of the vibration of the first voice coil 210 By amplifying, it is possible to provide a richer sound to a user by supplementing low-frequency acoustic characteristics and sound leakage. Additionally, richer sound may be provided to the user through sound transmission through the bone conduction method and the air conduction method.

12 is a conceptual diagram of a system for providing sound through a bone conduction device according to an embodiment of the present disclosure.

A system according to an embodiment of the present disclosure may include a user terminal 10, a network, and a bone conduction apparatus 1000. The user terminal 10 and the bone conduction apparatus 1000 according to the embodiments of the present disclosure may mutually transmit and receive data for the system according to the exemplary embodiments of the present disclosure through a network. Components illustrated in FIG. 12 are exemplary, and additional components may be present or some of the components illustrated in FIG. 12 may be omitted.

Networks according to embodiments of the present disclosure include Public Switched Telephone Network (PSTN), x Digital Subscriber Line (xDSL), Rate Adaptive DSL (RADSL), Multi Rate DSL (MDSL), and Very High Speed DSL (VDSL). ), UADSL (Universal Asymmetric DSL), HDSL (High Bit Rate DSL), and local area network (LAN).

In addition, the network presented here is CDMA (Code Division Multi Access), TDMA (Time Division Multi Access), FDMA (Frequency Division Multi Access), OFDMA (Orthogonal Frequency Division Multi Access), SC-FDMA (Single Carrier-FDMA) and Various wireless communication systems such as other systems can be used.

The network according to the embodiments of the present disclosure may be configured regardless of its communication mode, such as wired and wireless, and is composed of various communication networks such as a personal area network (PAN) and a wide area network (WAN). Can be. In addition, the network may be a known World Wide Web (WWW), and may use a wireless transmission technology used for short-range communication such as infrared (IrDA: Infrared Data Association) or Bluetooth (Bluetooth). The techniques described herein may be used not only in the networks mentioned above, but also in other networks.

According to an exemplary embodiment of the present disclosure, the user terminal 10 may access the bone conduction apparatus 1000 through an application to perform operations related to a service provided by the bone conduction apparatus 1000. The user terminal 10 may be at least one terminal that allows the user to select a sound reproducible through the bone conduction apparatus 1000. Also, the user terminal 10 may display a service screen based on a signal transmitted from the bone conduction apparatus 1000.

The user terminal 10 may refer to any type of entity(s) in a system having a mechanism for communication with the bone conduction apparatus 1000. For example, such a user terminal 10 is a personal computer (PC), a notebook (note book), a mobile terminal (mobile terminal), a smart phone (smart phone), a tablet PC (tablet PC), and a wearable device (wearable device). And the like, and may include all types of terminals that can access wired/wireless networks. In addition, the user terminal 10 may include an arbitrary server implemented by at least one of an agent, an application programming interface (API), and a plug-in. In addition, the user terminal 10 may include an application source and/or a client application.

Since the user terminal 10 has a display, it may receive a user's input related to a service provided by the bone conduction apparatus 1000 and provide an arbitrary form of output to the user.

The bone conduction apparatus 1000 may be connected to the user terminal 10 through a network, and may generate vibrations related to sound in response to a user's selection input to the user terminal 10 and provide it to the user. A more detailed description of a method of providing sound to a user through a bone conduction device will be described later with reference to the following drawings.

13 is a block diagram of a bone conduction device according to an embodiment of the present disclosure.

13, the bone conduction apparatus 1000 may include a network unit 1010, a memory 1020, and a processor 1030. The above-described components are exemplary, and the scope of the present disclosure is not limited to the above-described components. That is, additional components may be included or some of the above-described components may be omitted according to implementation aspects of the embodiments in the present disclosure.

According to an embodiment of the present disclosure, the bone conduction apparatus 1000 may include a network unit 1010 that transmits and receives data related to an audio output service from the user terminal 10.

In the present disclosure, the network unit 1010 may be configured regardless of its communication mode such as wired or wireless, and may be configured with various communication networks such as a short-range communication network (PAN) and a local area network (WAN). I can. In addition, the network may be a known World Wide Web (WWW), and may use a wireless transmission technology used for short-range communication such as infrared (IrDA) or Bluetooth.

The techniques described herein may be used not only in the networks mentioned above, but also in other networks.

According to an embodiment of the present disclosure, the memory 1020 may store information in any form generated or determined by the processor 1030 and information in any form received by the network unit 1010.

According to an embodiment of the present disclosure, the memory 1020 is a flash memory type, a hard disk type, a multimedia card micro type, and a card type memory (for example, SD or XD memory, etc.), RAM (Random Access Memory, RAM), SRAM (Static Random Access Memory), ROM (Read-Only Memory, ROM), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read) -Only Memory), a magnetic memory, a magnetic disk, and an optical disk. The bone conduction apparatus 1000 may operate in connection with a web storage that performs a storage function of the memory 1020 on the Internet. The description of the above-described memory is merely an example, and the present disclosure is not limited thereto.

The processor 1030 may control the bone conduction apparatus 1000 to output a sound related to a service according to an embodiment of the present disclosure by reading a computer program stored in the memory 1020.

According to an embodiment of the present disclosure, the processor 1030 may generally process the overall operation of the bone conduction apparatus 1000. The processor 1030 may provide or process appropriate information or functions to a user by processing signals, data, information, etc. that are input or output through the above-described components or by driving an application program stored in the memory 1020. .

According to an embodiment of the present disclosure, the processor 1030 may receive a control signal from a user terminal, and may control the bone conduction apparatus 1000 to output a sound corresponding to the control signal.

According to an embodiment of the present disclosure, the processor 1030 may generate the first vibration and the second vibration in the inner space of the bone conduction apparatus 1000 by providing a first electrical signal to the first voice coil 210. have. More specifically. The processor 1030 provides a first electrical signal to the first voice coil 210 to induce an interaction between the first voice coil 210 and the first magnetic unit 310, and the first voice coil 210 A first vibration may be generated in the contacted vibration transmission unit 100, and a second vibration may be generated.

Here, the second vibration is generated by the movement of the first magnetic unit 310 corresponding to the reaction of the first vibration, and may be related to the movement of air inside the housing 500. In detail, when the processor 1030 determines to provide an electrical signal to the first voice coil 210, the first voice coil 210 and the first magnetic unit 310 interact The first vibration for vertical motion is generated with respect to the voice coil 210, and the second vibration according to the flow of air in the inner space of the housing 500 by a reaction against the first vibration of the first voice coil 210 Can be generated.

In the first embodiment of the present disclosure, that is, the processor 1030 determines to provide the first electrical signal to the first voice coil 210 to transmit sound to the inner space of the housing 500 in a bone conduction manner. The first vibration and the second vibration related to the movement of air inside the housing 500 may be generated.

According to an embodiment of the present disclosure, the processor 1030 may control the first vibration to be transmitted to the user through the contact unit 110 in a bone conduction manner. Specifically, the processor 1030 may generate a first vibration in the first voice coil 210 by providing a first electrical signal to the first voice coil 210. In this case, the first vibration generated in the first voice coil 210 may be transmitted to the vibration control member 600 adjacent to the first voice coil 210, and the vibration control member 600 includes a first voice coil ( The first vibration generated in 210 may be transmitted to the contact unit 110. In addition, the contact unit 110 may provide the first vibration transmitted through the vibration control member 600 to the user in a bone conduction manner.

That is, the processor 1030 can control the first vibration to be transmitted to the user through the contact unit 110 in a bone conduction method, and by controlling the first voice coil 210 through the first vibration adjustment signal, The first vibration may be adjusted to adjust the sound provided to the user in a bone conduction method.

According to an exemplary embodiment of the present disclosure, the processor 1030 includes air in the housing 500 of the bone conduction device 1000 generated by the interaction between the first voice coil 210 and the first magnetic unit 310. A second vibration, which is vibration, may be generated, and the second vibration may be controlled to be transmitted to the user through the sound transmission unit 1100 in an air conduction method. Specifically, the processor 1030 determines to provide a first electrical signal to the first voice coil 210, and the first vibration and housing 500 for transmitting sound to the inner space of the housing 500 in a bone conduction manner. ) Can generate a second vibration related to the movement of the air inside.

In this case, sound may be generated in the inner space of the housing 500 through the second vibration according to the flow of air inside the housing 500, and the corresponding sound may be provided to the user through the sound transmission unit 1100. I can. That is, the sound corresponding to the second vibration generated inside the housing 500 may be transmitted to the user through one or more perforations of the sound transmission unit 1100 in an air conduction method (ie, a non-contact method).

According to an embodiment of the present disclosure, the processor 1030 may receive a control signal for controlling the equalizer of the bone conduction apparatus 1000 through the network unit 1010. The control signal may be generated based on a user's selection input to the user terminal 10. In addition, the control signal may be generated based on predetermined sound information on sound related to reproduction.

The control signal may be generated based on a user's selection input through the user terminal 10 and may include information for emphasizing or reducing a specific frequency band. For example, the control signal may include information for emphasizing the 60Hz band so that a sense of space and fullness in sound are maximized in response to a user's selection input. For another example, the control signal may include information for emphasizing a 1K ~ 3KHz band so that clarity or clarity in sound or a human voice is emphasized in the user's selection input. The detailed description of the above-described control signal is only an example, and the present disclosure is not limited thereto.

In addition, the control signal may be generated based on sound information related to a reproduced sound, and may include information for emphasizing or reducing a specific frequency band. The sound information related to sound may be pre-recorded in a provided sound related file. For example, when the user wants to listen to the sound information for the sound includes genre information that the classical music, the control signal may include information for emphasizing the frequency of the 2KHz band so that the magnificent bass and clarity of the music are relatively high. have. For another example, if the sound information about the sound that the user wants to listen to includes genre information called rock, the control signal and information for emphasizing the frequency of the 3.2K band so that the voice of the vocalist can be heard clearly and clearly. It may include. The detailed description of the above-described control signal is only an example, and the present disclosure is not limited thereto.

That is, the processor 1030 may receive a control signal generated in response to a user's selection input input through the user terminal 10 or generated based on sound information related to a reproduced sound.

According to an embodiment of the present disclosure, the processor 1030 may adjust the equalizer in response to a control signal received from the user terminal 10. Specifically, the processor 1030 may perform equalizer adjustment on a control signal transmitted to the first voice coil or the second voice coil based on the control signal received from the user terminal 10. In this case, the processor 1030 may perform equalizer adjustment for both the first vibration and the third vibration in response to the control signal, or may perform equalizer adjustment for at least one of the first vibration and the third vibration. In this case, the control signal may include selection information on a method to perform equalizer adjustment among the bone conduction method and the air conduction method.

In detail, the processor 1030 may receive a control signal for adjusting the sound equalizer from the user terminal 10. In addition, when receiving a control signal, the processor 1030 may determine whether to perform a bone conduction-based equalizer adjustment or an air conduction-based equalizer adjustment based on the control signal.

According to an embodiment of the present disclosure, when the processor 1030 determines to perform the bone conduction-based equalizer adjustment based on a control signal, the processor 1030 generates the first voice coil based on the control signal. The first vibration can be adjusted. Specifically, the processor 1030 may adjust the first vibration by controlling the magnitude, frequency, and operation time of the current provided to the first voice coil 210 in response to the control signal.

For example, if the control signal includes information for increasing the loudness of the sound, the processor 1030 increases the amount of the current provided to the first voice coil 210 to the first voice coil 210. The magnitude of the first vibration can be increased. For another example, when the control signal includes information for emphasizing the frequency of the 60 Hz band, the processor 1030 may use the first voice coil so that the corresponding frequency band is emphasized in the electric signal provided to the first voice coil 210. The frequency of the electric signal braking at 210 may be adjusted. The detailed description of the above-described control signal is only an example, and the present disclosure is not limited thereto.

In addition, when the processor 1030 determines to perform an air conduction equalizer adjustment based on the control signal, the processor 1030 adjusts the second vibration generated inside the housing 500 based on the control signal. I can. Specifically, the processor 1030 may amplify or cancel the second vibration in response to the control signal. To this end, the processor 1030 controls the magnitude, frequency, and operation time of the current provided to the first voice coil 210 in response to the control signal, thereby controlling the second vibration related to the flow of air in the inner space of the housing 500. Can be adjusted.

For example, when the control signal includes information for reducing the loudness of the sound, the processor 1030 reduces the amount of the current provided to the first voice coil 210 to the first voice coil 210. It is possible to reduce the magnitude of the first vibration. Accordingly, the second vibration related to the flow of air in the housing 500 generated in response to a reaction to the first vibration may be reduced. That is, the processor 1030 may control the second vibration related to the flow of air inside the housing 500 to be adjusted by adjusting the electrical signal provided to the first voice coil 210. The detailed description of the above-described control signal is only an example, and the present disclosure is not limited thereto.

According to an embodiment of the present disclosure, when the control signal received from the user terminal 10 includes user-customized sound information, the processor 1030 may identify equalizer setting information pre-mapped to the customized sound information. . The customized sound information may be information on a preferred sound output method when the user of the user terminal 10 listens to sound.

Specifically, the processor 1030 may receive a selection input for the equalizer setting from the user through the user terminal 10, and equalizer setting information related to the user's selection input in the customized sound information of the user terminal 10 Can be pre-mapped and saved. The equalizer setting information may include, for example, information for emphasizing a 1K ~ 3KHz band in sound and reducing a 60Hz band. The above-described equalizer setting information is only an example for understanding the description, and the present disclosure is not limited thereto. Also, the processor 1030 may adjust the equalizer for the bone conduction device based on the pre-mapped equalizer setting information.

That is, when receiving a control signal including user-customized sound information, the processor 1030 identifies equalizer setting information pre-mapped to the customized sound information, and controls the sound corresponding to the equalizer preset by the user to be output. I can. Accordingly, when a user of the user terminal 10 listens to a sound, the user of the user terminal 10 may pre-register his or her preferred setting and receive a sound effect based on a preset equalizer for the corresponding sound, so that convenience may be increased.

Bone conduction device 1000 related to another embodiment of the present disclosure includes a housing 500, a vibration transmission unit 100, a vibration control member 600, a first voice coil 210, a first magnetic unit 310, It may include a second magnetic unit 320, a second voice coil 220 and a second mount unit 400.

The magnetic unit may include a first magnetic unit 310 and a second magnetic unit 320. In addition, when the magnetic unit includes the first magnetic unit 310 and the second magnetic unit 320, the intermediate plate 800 for mounting the first magnetic unit 310 and the second magnetic unit 320 ) Can be included. In this case, the first magnetic unit 310 may include a first inner magnet 311 and a first outer magnet 312, and the second magnetic unit 320 may include a second inner magnet 321 and a second It may include an external magnet 322.

In addition, in the space between the first inner magnet 311 and the first outer magnet 312 and the second inner magnet 321 and the second outer magnet 322, the first voice coil 210 and the second voice coil Each of the 220 can be located.

In addition, the first magnetic unit 310 may generate a first vibration through interaction with the first voice coil 210. In detail, the first voice coil 210 may be positioned between the first inner magnet 311 and the second outer magnet 322 provided in the inner space of the housing 500, and the first voice coil ( When 210) receives an electrical signal (eg, an AC signal) from the outside, it occurs in the first inner magnet 311 and the first outer magnet 312 located inside and outside the first voice coil 210, respectively. The first vibration may be generated through the magnetic field. That is, the first vibration in the vertical direction may be generated in the first voice coil 210. In this case, the first vibration may be transmitted to the vibration adjusting member 600 located adjacent to the upper surface of the first voice coil 210, and the vibration adjusting member 600 may occur in the first voice coil 210. Vibration may be transmitted to the vibration transmission unit 100.

In addition, the first internal magnet 311 and the first external magnet 312 of the first magnetic unit 310 react with the first voice coil 210 to give the first voice coil 210 to the first voice coil 210 through a magnetic field. Generates vibration, and generates a second vibration related to the movement of air in the inner space of the housing 500 by a reaction of the first magnetic unit 310 corresponding to the reaction of the vibration of the first voice coil 210 I can make it. In addition, vibration may occur in the intermediate plate 800.

In addition, the second inner magnet 321 and the second outer magnet 322 of the second magnetic unit 320 reacts with the second voice coil 220 to thirdly affect the second voice coil 220 through a magnetic field. It generates vibration, and may affect the second vibration through a reaction through the third vibration. In this case, the second voice coil 220 may be mounted in an area of the inner space of the housing 500 through the second mount unit 400.

That is, each of the first magnetic unit 310 and the second magnetic unit 320 interacts with each of the first and second voice coils 210 and 220 to prevent the movement of air in the interior space of the housing 500. The first magnetic unit 310 and the intermediate plate 800 that mounts the second magnetic unit 320 are vibrated, thereby controlling the movement of air in the inner space of the housing 500 more precisely. can do.

Specifically, the processor 1030 provides a second electrical signal to the second voice coil 220 to induce interaction between the second voice coil and the magnetic unit, thereby generating a third vibration based on the vibration of the second voice coil 220. Can occur. In addition, the processor 1030 controls the second voice coil 220 through the third vibration generated in the second voice coil 220 as the second voice coil 220 interacts with the second magnetic unit 320 in response to the second electrical signal. 2 Vibration can be controlled. That is, the third vibration may reduce or amplify the second vibration through interference with the second vibration.

In this case, the first electric signal and the second electric signal supplied to each of the first voice coil 210 and the second voice coil 220 may have different current magnitudes, frequencies, and operation times. The movement of air in the inner space of the housing 500 may be more precisely controlled through the difference in characteristics between the electric signals supplied to each of the first voice coil 210 and the second voice coil 220.

In detail, the first electric signal and the second electric signal supplied to each of the first voice coil 210 and the second voice coil 220 to generate vibration in the housing 500 are the first magnetic unit. 310 and the second magnetic unit 320 may be generated to have different magnitudes of currents, different frequencies, and different operating times so as to generate different vibrations through interactions with each of them.

For example, when the current level of the first electric signal supplied to the first voice coil 210 is greater than the current level of the second electric signal supplied to the second voice coil 220, the first voice coil 210 The magnitude of the vibration generated by the interaction between the first magnetic unit 310 and the second voice coil 220 may be greater than the magnitude of the vibration generated by the interaction between the second voice coil 220 and the second magnetic unit 320. That is, the second vibration related to the flow of air generated by the reaction of the vibration to the first voice coil 210 may have a greater influence than the third vibration generated from the second voice coil 220.

That is, the processor 1030 differently determines the current magnitudes of each of the first and second electrical signals supplied to the first voice coil 210 and the second voice coil 220, thereby reducing the voltage through the third vibration. 2 Vibration can be controlled.

In other words, through the third vibration related to the air flow generated by the reaction of the vibration against the second voice coil 220, the second related to the air flow generated by the reaction of the vibration to the first voice coil 210 By controlling the vibration, the flow of air in the inner space of the housing 500 may be precisely controlled to remove leakage, or a first vibration for providing a bone conduction type sound may be amplified to provide high-quality sound. In addition, as the sound generated according to the second vibration is more precisely controlled by the third vibration, the quality of the sound provided through the air conduction method may also be improved.

For another example, the operation time of the first electric signal supplied to the first voice coil 210 may be set longer than the operation time of the second electric signal supplied to the second voice coil 220. In this case, the first voice coil 210 may receive a first electric signal and interact with the first magnetic unit 310 to generate a first vibration for the first voice coil 210, and the first voice A second vibration related to the movement of air in the housing 500 may be generated by a reaction of the first vibration of the coil 210. In addition, the second voice coil 220 may receive a second electric signal and interact with the second magnetic unit 320 to generate vibration for the second voice coil 220, and the second voice coil 220 A third vibration related to the movement of air inside the housing 500 may be generated by a reaction of the vibration of ). However, since the operation time of the first electric signal is set longer than the operation time of the second electric signal, the supply of the second electric signal to the second voice coil 220 is preferentially stopped. The flow of air may be more affected by the second vibration generated through the first voice coil 210. That is, the flow of air inside the housing 500 may be controlled by differently determining the operating times of the electric signals supplied to each voice coil. By controlling the flow of air in the inner space of the housing 500, it is possible to control the leakage sound that may occur inside the housing 500, and provide a richer sound by amplifying the size of the sound corresponding to vibration and vibration. I can. The above-described specific descriptions of the electric signal are only examples, and the present disclosure is not limited thereto.

In addition, when the first voice coil 210 and the second voice coil 220 interact with each of the first magnetic unit 310 and the second magnetic unit 320, it will be provided to generate vibrations of different magnitudes. I can. Specifically, each of the first voice coil 210 and the second voice coil 220 may include a plate having a cylindrical shape and a coil surrounding an outer circumferential surface of the plate. In this case, each of the first voice coil 210 and the second voice coil 220 may have different rotational numbers of coils wound around each plate in order to generate different vibrations in response to an electric signal. When the number of rotations of each coil constituting the first voice coil 210 and the second voice coil 220 is different, when an electric signal is provided, the first magnetic unit 310 and the second magnetic unit 320 are mutually Can act to produce vibrations of different magnitudes.

For example, the number of revolutions of the coil wound around the plate of the first voice coil 210 is 1000 times, the number of revolutions of the coil wound around the plate of the second voice coil 220 is 500 times, and the first voice coil 210 and When the second voice coil 220 interacts with each of the first magnetic unit 310 and the second magnetic unit 320 to generate vibration, the magnitude of the vibration generated in the first voice coil 210 is second It may be greater than the magnitude of vibration generated in the voice coil 220. A detailed description of the number of rotations of the coils wound around each voice coil described above is merely an example, and the present disclosure is not limited thereto.

In other words, the processor 1030 may generate the first vibration, the second vibration and the third vibration by applying an electric signal to each of the first voice coil 210 and the second voice coil 220, and each voice By differently determining the electric signal applied to the coil, the output sound can be finely adjusted. Accordingly, it is possible to precisely control the flow of the air inside the housing 500, it is possible to more precisely control the sound transmitted to the user through the bone conduction method and the air conduction method.

According to an embodiment of the present disclosure, the processor 1030 may adjust the size of the sound output through the air conduction method in response to the size of the sound received through the sound receiver. In detail, the processor 1030 controls the first vibration generated in the first voice coil 210 to amplify when the size of the ambient sound is less than a predetermined threshold, and the movement of air inside the housing 500 The third vibration generated in the second voice coil 220 may be controlled so that the second vibration related to is attenuated. That is, the processor 1030 acquires the ambient sound acquired through the sound receiver, and when the size of the ambient sound is less than or equal to a predetermined threshold, amplifies the first vibration to amplify the amount of sound transmitted through the bone conduction method. And attenuating the second vibration to reduce the amount of sound transmitted through the air conduction method. In other words, in response to an environment with low ambient noise, the volume of sound transmitted by the air conduction method output to the outside may be adjusted to a relatively small amount, and the size of sound transmitted by the bone conduction method may be relatively large.

That is, the processor 1030 is a sound that is transmitted in an air conduction method that can affect others without a separate manipulation of the user in an environment with low noise (eg, a library) in the surrounding area (ie, sound that provides noise to the outside). By minimizing the size of, it is possible to provide convenience to the user. At the same time, the processor 1030 may increase the size of the sound transmitted through the bone conduction method (ie, sound that does not provide external noise), while allowing the same size of sound to be heard as before.

14 is a flowchart illustrating a method of providing sound through a bone conduction device according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, the bone conduction device provides a first electric signal to the first voice coil 210 to induce an interaction between the first voice coil and the magnetic unit to transmit vibration in contact with the first voice coil. A first vibration may be generated in the unit, and a second vibration may be generated (1410).

According to an exemplary embodiment of the present disclosure, the bone conduction device may control the first vibration to be transmitted to the user in a bone conduction manner through the contact unit (1420).

According to an exemplary embodiment of the present disclosure, the bone conduction device may control the second vibration to be transmitted to the user in an air conduction manner through the sound transmission unit (1430).

The order of the steps shown in FIG. 14 may be changed as needed, and at least one or more steps may be omitted or added. That is, the above-described steps are only one embodiment of the present disclosure, and the scope of the present disclosure is not limited thereto.

15 illustrates a module for implementing a method of providing sound through a bone conduction device according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, the bone conduction device may be implemented by the following modules.

According to an embodiment of the present disclosure, the bone conduction device provides a first electric signal to the first voice coil to induce an interaction between the first voice coil and the magnetic unit, thereby contacting the first voice coil. A module 1510 for generating a first vibration and generating a second vibration, a module 1520 for controlling the first vibration to be transmitted to the user through a contact unit in a bone conduction method, and a second vibration It may include a module 1530 for controlling to be transmitted to a user through an air conduction method through the sound transmission unit.

Alternatively, the second vibration may move the air inside the housing generated by the movement of the magnetic unit corresponding to the reaction of the first vibration.

Alternatively, it may further include a module for receiving a control signal for controlling the equalizer of the bone conduction device through the network unit, and a module for adjusting the equalizer of the bone conduction device in response to the received control signal. .

Alternatively, the control signal may be generated based on a user's selection input to the user terminal, or may be generated based on predetermined sound information on sound related to reproduction.

Alternatively, the module for adjusting the equalizer in response to the received control signal comprises: a module for adjusting vibration provided to the user through the contact unit based on the received control signal, and the received control signal It may include a module for amplifying or canceling the second vibration based on.

Alternatively, a module for adjusting an equalizer in response to the received control signal comprises: a module for adjusting a current magnitude of the first electric signal based on the received control signal, based on the received control signal It may include at least one of a module for adjusting a frequency of the first electrical signal and a module for adjusting an operation time of the first electrical signal based on the received control signal.

Alternatively, the module for adjusting the equalizer in response to the received control signal, when the control signal includes customized sound information of the user, for identifying equalizer setting information pre-mapped to the customized sound information It may include a module and a module for adjusting the equalizer for the bone conduction device based on the pre-mapped equalizer setting information.

Alternatively, a module for generating a third vibration based on the vibration of the second voice coil by providing a second electric signal to the second voice coil to induce interaction between the second voice coil and the magnetic unit may be further included. I can.

Alternatively, the magnetic unit includes a first magnetic unit and a second magnetic unit, and provides a second electric signal to the second voice coil to induce an interaction between the second voice coil and the magnetic unit. 3 The module for generating vibration may generate the second vibration through third vibration generated in the second voice coil as the second voice coil interacts with the second magnetic unit in response to the second electrical signal. It may include a module for controlling.

Alternatively, the third vibration may reduce or amplify the second vibration through interference with the second vibration.

Alternatively, the first electrical signal and the second electrical signal may be generated to have different current signals, different frequencies and different operating times.

According to another embodiment of the present disclosure, a module for implementing a bone conduction device may be implemented by logic, circuitry or means for implementing the bone conduction device.

Those of skill in the art would further describe the various illustrative logical blocks, configurations, modules, circuits, means, logics and algorithm steps described in connection with the embodiments disclosed herein, in electronic hardware, computer software, or combinations of both. It should be recognized that it can be implemented as To clearly illustrate the interchangeability of hardware and software, various illustrative components, blocks, configurations, means, logics, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented in hardware or as software depends on the specific application and design restrictions imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

16 shows a simplified and general schematic diagram of an exemplary computing environment in which embodiments of the present disclosure may be implemented.

While the present disclosure has generally been described above with respect to computer-executable instructions that can be executed on one or more computers, those skilled in the art will appreciate that the present disclosure may be implemented in combination with other program modules and/or as a combination of hardware and software. will be.

Generally, program modules include routines, programs, components, data structures, etc. that perform particular tasks or implement particular abstract data types. Further, to those skilled in the art, the method of the present disclosure is not limited to single-processor or multiprocessor computer systems, minicomputers, mainframe computers, as well as personal computers, handheld computing devices, microprocessor-based or programmable household appliances, and the like (each of which It will be appreciated that it may be implemented with other computer system configurations, including one or more associated devices).

The described embodiments of the present disclosure may also be practiced in a distributed computing environment where certain tasks are performed by remote processing devices that are connected through a communication network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.

Computers typically include a variety of computer-readable media. Computer-readable media can be any computer-readable media, including volatile and non-volatile media, transitory and non-transitory media, removable and non-transitory media. Includes removable media. By way of example, and not limitation, computer-readable media may include computer-readable storage media and computer-readable transmission media. Computer-readable storage media include volatile and nonvolatile media, transitory and non-transitory media, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules or other data. Includes the medium. Computer storage media include RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital video disk (DVD) or other optical disk storage device, magnetic cassette, magnetic tape, magnetic disk storage device, or other magnetic storage device, Or any other medium that can be accessed by a computer and used to store desired information.

Computer-readable transmission media typically implement computer-readable instructions, data structures, program modules or other data on a modulated data signal such as a carrier wave or other transport mechanism. Includes all information transmission media. The term modulated data signal refers to a signal in which one or more of the characteristics of the signal is set or changed to encode information in the signal. By way of example, and not limitation, computer-readable transmission media include wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared, and other wireless media. Combinations of any of the above-described media are also intended to be included within the scope of computer-readable transmission media.

An exemplary environment 2100 is shown that implements various aspects of the present disclosure, including a computer 2102, which includes a processing device 2104, a system memory 2106, and a system bus 2108. do. System bus 2108 couples system components, including but not limited to, system memory 2106 to processing unit 2104. The processing unit 2104 may be any of a variety of commercially available processors. Dual processors and other multiprocessor architectures may also be used as processing unit 2104.

The system bus 2108 may be any of several types of bus structures that may be additionally interconnected to a memory bus, a peripheral bus, and a local bus using any of a variety of commercial bus architectures. System memory 2106 includes read-only memory (ROM) 2110 and random access memory (RAM) 2112. The basic input/output system (BIOS) is stored in nonvolatile memory 2110 such as ROM, EPROM, EEPROM, etc. This BIOS is a basic input/output system that helps transfer information between components in the computer 2102, such as during startup. Includes routines. RAM 2112 may also include high speed RAM, such as static RAM, for caching data.

The computer 2102 also has an internal hard disk drive (HDD) 2114 (e.g., EIDE, SATA) and the internal hard disk drive 2114 can also be configured for external use within a suitable chassis (not shown). ), magnetic floppy disk drive (FDD) 2116 (for example, to read from or write to removable diskette 2118), and optical disk drive 2120 (e.g., a CD-ROM disk (2122) for reading or reading from or writing to other high-capacity optical media such as DVD). The hard disk drive 2114, the magnetic disk drive 2116 and the optical disk drive 2120 are each connected to the system bus 2108 by a hard disk drive interface 2124, a magnetic disk drive interface 2126 and an optical drive interface 2128. ) Can be connected. The interface 2124 for implementing an external drive includes at least one or both of USB (Universal Serial Bus) and IEEE 1394 interface technologies.

These drives and their associated computer readable media provide non-volatile storage of data, data structures, computer executable instructions, and the like. In the case of computer 2102, drives and media correspond to storing any data in a suitable digital format. Although the description of the computer-readable medium above refers to a removable optical medium such as a HDD, a removable magnetic disk, and a CD or DVD, those skilled in the art may use a zip drive, a magnetic cassette, a flash memory card, a cartridge, etc. It will be appreciated that other types of computer-readable media, such as the like, may also be used in the exemplary operating environment, and that any such media may contain computer-executable instructions for performing the methods of the present disclosure.

A number of program modules, including an operating system 2130, one or more application programs 2132, other program modules 2134, and program data 2136, may be stored in the drive and RAM 2112. All or part of the operating system, applications, modules, and/or data may also be cached in RAM 2112. It will be appreciated that the present disclosure may be implemented in a number of commercially available operating systems or combinations of operating systems.

A user may enter commands and information into the computer 2102 through one or more wired/wireless input devices, for example, a pointing device such as a keyboard 2138 and a mouse 2140. Other input devices (not shown) may include a microphone, IR remote control, joystick, game pad, stylus pen, touch screen, and the like. These and other input devices are often connected to the processing unit 2104 through the input device interface 2142, which is connected to the system bus 2108, but the parallel port, IEEE 1394 serial port, game port, USB port, IR interface, It can be connected by other interfaces such as etc.

A monitor 2144 or other type of display device is also connected to the system bus 2108 via an interface such as a video adapter 2146. In addition to the monitor 2144, the computer generally includes other peripheral output devices (not shown) such as speakers, printers, etc.

Computer 2102 may operate in a networked environment using logical connections to one or more remote computers, such as remote computer(s) 2148, via wired and/or wireless communication. The remote computer(s) 2148 may be a workstation, computing device computer, router, personal computer, portable computer, microprocessor-based entertainment device, peer device, or other common network node, and is generally connected to the computer 2102. It includes many or all of the components described for, but for brevity, only memory storage device 2150 is shown. The logical connections shown include wired/wireless connections to a local area network (LAN) 2152 and/or to a larger network, eg, a wide area network (WAN) 2154. Such LAN and WAN networking environments are common in offices and companies, and facilitate an enterprise-wide computer network such as an intranet, all of which can be connected to a worldwide computer network, for example the Internet.

When used in a LAN networking environment, the computer 2102 is connected to the local network 2152 via a wired and/or wireless communication network interface or adapter 2156. Adapter 2156 may facilitate wired or wireless communication to LAN 2152, which also includes a wireless access point installed therein to communicate with wireless adapter 2156. When used in a WAN networking environment, the computer 2102 may include a modem 2158, connected to a communications computing device on the WAN 2154, or through the Internet, to establish communications over the WAN 2154. Have other means. Modem 2158, which may be an internal or external and a wired or wireless device, is connected to the system bus 2108 through a serial port interface 2142. In a networked environment, program modules described for the computer 2102 or portions thereof may be stored in the remote memory/storage device 2150. It will be appreciated that the network connections shown are exemplary and other means of establishing communication links between computers may be used.

Computer 2102 is associated with any wireless device or entity deployed and operated in wireless communication, e.g., a printer, scanner, desktop and/or portable computer, portable data assistant (PDA), communication satellite, wireless detectable tag. It operates to communicate with any equipment or place and phone. This includes at least Wi-Fi and Bluetooth wireless technologies. Thus, the communication may be a predefined structure as in a conventional network or may simply be ad hoc communication between at least two devices.

Wi-Fi (Wireless Fidelity) allows you to connect to the Internet, etc. without wires. Wi-Fi is a wireless technology such as a cell phone that allows such devices, for example computers, to transmit and receive data indoors and outdoors, ie anywhere within the coverage area of a base station. Wi-Fi networks use a wireless technology called IEEE 802.11 (a, b, g, etc.) to provide a secure, reliable and high-speed wireless connection. Wi-Fi can be used to connect computers to each other, to the Internet, and to a wired network (using IEEE 802.3 or Ethernet). Wi-Fi networks can operate in unlicensed 2.4 and 5 GHz radio bands, for example at 11 Mbps (802.11a) or 54 Mbps (802.11b) data rates, or in products that include both bands (dual band). have.

Those of ordinary skill in the art of this disclosure will understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that may be referenced in the above description are voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields. Or particles, or any combination thereof.

A person of ordinary skill in the art of the present disclosure includes various exemplary logical blocks, modules, processors, means, circuits and algorithm steps described in connection with the embodiments disclosed herein, electronic hardware, (convenience). For the sake of clarity, it will be appreciated that it may be implemented by various forms of program or design code or a combination of both (referred to herein as "software"). To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the particular application and design constraints imposed on the overall system. A person of ordinary skill in the art of the present disclosure may implement the described functions in various ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The various embodiments presented herein may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term “article of manufacture” includes a computer program, carrier, or media accessible from any computer-readable device. For example, computer-readable media include magnetic storage devices (e.g., hard disks, floppy disks, magnetic strips, etc.), optical disks (e.g., CD, DVD, etc.), smart cards, and flash memory. Devices (eg, EEPROM, card, stick, key drive, etc.), but is not limited to these. In addition, the various storage media presented herein include one or more devices and/or other machine-readable media for storing information.

It is to be understood that the specific order or hierarchy of steps in the presented processes is an example of exemplary approaches. Based on the design priorities, it is to be understood that within the scope of the present disclosure a specific order or hierarchy of steps in processes may be rearranged. The appended method claims provide elements of the various steps in a sample order, but are not meant to be limited to the specific order or hierarchy presented.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these embodiments will be apparent to those of ordinary skill in the art, and general principles defined herein may be applied to other embodiments without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the embodiments presented herein, but is to be interpreted in the widest scope consistent with the principles and novel features presented herein.

Claims (15)

As a bone conduction device,
A housing formed through an upper case in which at least a portion of an upper end surface is opened and a lower case coupled to a portion of the upper case;
A magnetic portion including at least one magnet to form a magnetic field;
A first voice coil reacting with a magnetic field of the magnetic portion to generate vibration;
A vibration transmission unit for transmitting the vibration generated by the first voice coil to a user in a bone conduction method; And
A sound transmission unit formed by one or more perforations in at least a part of the housing and configured to transmit sound generated by vibrations inside the housing to the user through an air conduction method;
Containing,
Bone conduction device.
The method of claim 1,
The vibration transmission unit,
A contact unit for transmitting the vibration to the user in a bone conduction manner through contact with the user's body; And
A diaphragm that transmits the vibration generated by the first voice coil to the contact unit and is mounted on the housing;
Containing,
Bone conduction device.
The method of claim 1,
The one or more perforations,
It is provided in a shape such that the sound generated through the vibration inside the housing has directivity,
Bone conduction device.
The method of claim 1,
The one or more perforations,
And a central perforation positioned at a center of the one or more perforations and an outer perforation positioned at an outer surface of the one or more perforations
The outer perforation is provided with a cross-sectional area smaller than the central perforation,
Bone conduction device.
The method of claim 1,
An adjustment mechanism provided in the housing and configured to adjust the direction and size of sound transmitted through the sound transmission unit;
Further comprising,
Bone conduction device.
The method of claim 5,
The adjustment mechanism,
Allows rotation within a predetermined angle with respect to at least one of the upper case and the lower case forming the housing, and rotation other than the predetermined angle through a rotation limiting portion formed on at least one of the upper case and the lower case To limit,
Bone conduction device.
The method of claim 6,
The adjustment mechanism,
And a blocking part for blocking sound transmitted to one or more perforations formed in at least one of the upper case and the lower case,
The blocking unit,
Has an area corresponding to the one or more perforations and is formed within the predetermined angle,
Bone conduction device.
The method of claim 1,
A detachable mechanism provided in the housing and detachable from the wearable device;
It further includes,
When the housing is coupled to the wearable device through the detachment mechanism, the vibration transmission unit contacts the temporal bone of the user to transmit sound through the bone conduction method, and the sound transmission unit faces the external ear canal of the user. To transmit the sound in the air conduction manner,
Bone conduction device.
The method of claim 1,
A first mount unit for mounting the magnetic part to the housing;
It further includes,
The first mount unit,
It extends in the direction of the center of the bone conduction device, includes at least one rod having a shortest distance direction to the center and a predetermined angle, and is mounted with the magnetic portion through the at least one rod to prevent lateral vibration of the magnetic portion Reducing,
Bone conduction device.
The method of claim 1,
The magnetic part,
Vibrating the first voice coil in response to a magnetic field of the first voice coil, and vibrating by a reaction of the vibration of the first voice coil, thereby generating a movement of air inside the housing,
Bone conduction device.
The method of claim 10,
The movement of the air inside the housing reduces leakage noise generated by the bone conduction device, or is transmitted to the sound transmission unit to amplify the sound transmitted to the user from the sound transmission unit,
Bone conduction device.
The method of claim 1,
A second voice coil positioned under the magnetic portion and reacting with a magnetic field of the magnetic portion to generate vibration; And
A second mount unit for mounting the second voice coil;
Further comprising,
Bone conduction device.
The method of claim 12,
The magnetic part,
A first magnetic unit for interacting with the first voice coil;
A second magnetic unit for interacting with the second voice coil; And
Including an intermediate plate for mounting the first magnetic unit and the second magnetic unit,
Bone conduction device.
The method of claim 1,
A network unit for receiving a control signal for controlling an equalizer of the bone conduction device from a user terminal; And
A processor for controlling vibrations generated in the first and second voice coils in response to the control signal;
Including more, and
The control signal,
Including selection information on a method to perform equalizer adjustment for at least one of the bone conduction method and the air conduction method,
Bone conduction device.
The method of claim 14,
A sound receiver provided outside the housing to receive ambient sound;
Including more, and
The processor,
When the size of the ambient sound is less than a predetermined threshold, the second voice coil is controlled to amplify the first vibration generated in the first voice coil and attenuate the second vibration related to the movement of the air inside the housing. To control the third vibration that occurs in,
Bone conduction device.

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