KR20220012554A - Audio output device including microphone - Google Patents

Abstract

An audio output device according to an embodiment of the present invention comprises: a housing having a speaker arranged therein and having a though hole formed on a surface; a microphone arranged adjacently to the through hole inside the housing and receiving sound through the through hole from the outside of the housing; a first structure combined with the housing to cover the through hole and having a plurality of first vent holes formed to be able to transmit air; and a second structure arranged between the first structure and the microphone and having a plurality of second vent holes formed to be able to transmit air. A part of the first structure is exposed out of the housing, a first space formed between the first structure and the second structure, and a second space is formed between the microphone and the second structure. The first structure, the first space, the second structure and the second space form at least part of a path for transmitting sound outside the housing to the microphone. The air permeability of the second structure can be smaller than the air permeability of the first structure. In addition, other embodiments grasped by the present specification are possible. Therefore, provided is an audio output device, wherein wind noise can be reduced structurally.

Description

Audio output device including microphone {AUDIO OUTPUT DEVICE INCLUDING MICROPHONE}

Various embodiments disclosed in this document relate to an audio output device including a microphone.

With recent advances in technology, audio output devices such as earphones and headphones have a noise-cancelling function that blocks out ambient noise (eg, active noise cancellation (ANC)) and/or an ambient-sounding function that naturally transmits ambient sounds (eg transparency) can provide The audio output device may include one or more microphones. The microphone may receive a sound (eg, voice, noise) from outside the audio output device. The audio output device may output an external sound received by the microphone through the speaker.

The audio output device may collect an external sound using a microphone. When the microphone picks up external sound in a windy environment, wind noise is transmitted to the microphone and output through the speaker, thereby providing inconvenience to the user.

The audio output device may reduce wind noise through a wind noise reduction solution using software, but when software is used, problems of original signal loss, operation error, or signal delay may occur.

According to various embodiments disclosed herein, an audio electronic device capable of structurally reducing wind noise may be provided.

The technical problems to be achieved in the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

An audio output device according to an embodiment disclosed in this document includes a housing having a speaker disposed therein and having a through hole formed therein; a microphone disposed adjacent to the through hole in the housing and configured to receive a sound from the outside of the housing through the through hole; a first structure coupled to the housing to cover the through hole and having a plurality of first vent holes formed therein to allow air permeation; and a second structure disposed between the first structure and the microphone and having a plurality of second ventilation holes formed therein to allow air permeation, wherein a portion of the first structure is exposed to the outside of the housing, and the A first space is formed between the first structure and the second structure, a second space is formed between the microphone and the second structure, and the first structure, the first space, the second structure, and the second structure The two spaces form at least a part of a movement path for transmitting sound from the outside of the housing to the microphone, and the air permeability of the second structure may be smaller than the air permeability of the first structure. .

According to an embodiment of the present disclosure, an earbud capable of wirelessly connecting to an electronic device includes: a housing including a through hole; a speaker disposed inside the housing and outputting an audio signal to the outside of the housing; a microphone disposed adjacent to the through hole in the housing and configured to sense ambient sound of the earbud through the through hole; a first structure coupled to the housing to cover the through-hole and having a plurality of first ventilation holes to have a predetermined air permeability, the plurality of first ventilation holes being formed in a regular pattern; and a second structure disposed between the first structure and the microphone and having a plurality of second ventilation holes formed therein to have an air permeability smaller than the air permeability of the first structure, wherein the plurality of second ventilation holes have an irregular pattern Including; a portion of the first structure is exposed to the outside of the first housing, a first space is formed between the first structure and the second structure, and between the microphone and the second structure A second space having a volume smaller than a volume of the first space is formed, and the ambient sound of the earbuds is transmitted through the first structure, the first space, the second structure, and the second space. It may be configured for micro-delivery.

The audio output device according to various embodiments of the present disclosure may structurally reduce wind noise by forming a path through which an external sound is transmitted through a plurality of structures having air permeability.

The audio output apparatus according to various embodiments of the present disclosure may improve usability of a call, a noise canceling function, or an ambient sound listening function by reducing wind noise.

The audio output device according to various embodiments of the present disclosure may implement a waterproof structure of a microphone by configuring at least one structure to be waterproof.

In addition, various effects directly or indirectly identified through this document may be provided.

1 illustrates an audio output device according to an embodiment.
2 is a cross-sectional view of an audio output device according to an exemplary embodiment.
3 is an enlarged cross-sectional view of a portion of an audio output device according to an exemplary embodiment.
4 illustrates a first structure of an audio output device according to an exemplary embodiment.
5 illustrates a second structure of an audio output device according to an exemplary embodiment.
6 is a graph illustrating wind noise reduction performance of an audio output device according to an exemplary embodiment.
7 is a graph illustrating wind noise reduction performance of an audio output device according to an exemplary embodiment.
8 is a cross-sectional view of an audio output device according to an exemplary embodiment.
9A is a cross-sectional view of an audio output device according to an exemplary embodiment.
9B is a cross-sectional view of an audio output device according to an exemplary embodiment.
10 is a graph illustrating wind noise reduction performance of an audio output device according to an exemplary embodiment.
11 illustrates operations of an audio output device and an external electronic device according to an exemplary embodiment.
12 is a block diagram illustrating a noise canceling function and an ambient sound transmitting function of an audio output device according to an exemplary embodiment.
13 is a block diagram of an electronic device in a network environment according to an embodiment.
In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that various modifications, equivalents, and/or alternatives of the embodiments of the present invention are included.

1 illustrates an audio output device according to an embodiment.

Referring to FIG. 1 , an audio output device 100 according to an embodiment includes a housing 110 , a speaker 120 , an ear tip 181 , a wear detection sensor 182 , and a charging terminal 183 . , and/or a touch pad 184 .

According to an embodiment, the audio output apparatus 100 may output an audio signal. For example, the audio output device 100 may be a headphone, a headset and/or an earphone, or an earphone, but is not limited thereto. The audio output device 100 may include various types of devices (eg, a hearing aid, a small speaker, or a portable sound device) that receive an audio signal and output the received audio signal.

In an embodiment, the housing 110 may form at least a part of the exterior of the audio output device 100 . The housing 110 may include a first housing 110 - 1 and a second housing 110 - 2 coupled to the first housing 110 - 1 . For example, the housing 110 may provide an accommodating space (eg, the accommodating space S of FIG. 2 ) through the coupling structure of the first housing 110 - 1 and the second housing 110 - 2 . . Various components included in the audio output device 100 (eg, the speaker 120 , the microphone 130 of FIG. 2 , the support member 160 , and/or the circuit board 170 ) are accommodated in the housing 110 . It can be arranged inside the space. The housing 110 may be configured such that the wear detection sensor 182 , the charging terminal 183 , and the touch pad 184 are visually exposed on the outer surface of the housing 110 . The first housing 110-1 and the second housing 110-2 are not limited to a combination and/or assembly structure, and the first housing 110-1 and the second housing 110 according to an embodiment of the present invention. -2) may be integrally formed.

In an embodiment, the first housing 110 - 1 may include a nozzle (eg, the nozzle 119 of FIG. 2 ) that forms a path for the sound output through the speaker 120 to move. A part of the first housing 110 - 1 may be inserted into the user's ear. For example, the ear tip 181 may be coupled to a portion of the first housing 110 - 1 inserted into the user's ear. The second housing 110 - 2 may accommodate a microphone (eg, the microphone 130 of FIG. 2 ) therein. A through hole 111 may be formed in at least one region of the surface of the second housing 110 - 2 so that sound can be transmitted from the outside of the housing to the microphone.

In an embodiment, the speaker 120 may convert an electrical signal into a sound signal. The speaker 120 may output sound to the outside of the audio output device 100 . For example, the speaker 120 may convert an electrical signal into a sound that a user can audibly recognize and output. At least a portion of the speaker 120 may be disposed inside the housing 110 . For example, the speaker 120 may be disposed adjacent to a nozzle (eg, the nozzle 119 of FIG. 2 ) of the first housing 110 - 1 .

Although not shown, in an embodiment, the speaker 120 may include a voice coil, a diaphragm, and a magnet. In addition, the speaker 120 may include a structure (eg, a wire mesh, a grill, and/or a protector) for preventing the inflow of foreign substances from the outside. For example, the structure is disposed to be visually exposed to the outer surface of one area (eg, the first housing 110-1) of the housing 110, and other components of the speaker 120 (eg, a voice coil) , a diaphragm, or a magnet) may be disposed inside the housing 110 .

In an embodiment, the ear tip 181 may be coupled to one end of the housing 110 so as to be adjacent to the speaker 120 . The ear tip 181 may be formed in a cylindrical shape with a hollow formed therein. For example, when the ear tip 181 is combined with the housing 110 , the sound (audio) output from the speaker 120 may be transmitted to an external object (eg, a user) through the hollow of the ear tip 181 . have.

In one embodiment, the ear tip 181 may be formed of a flexible material. The ear tip 181 may assist the audio output device 100 to be inserted in close contact with the user's ear. For example, the ear tip 181 may be formed of a silicon (silicon) material. At least one region of the ear tip 181 may be deformed according to the shape of the external object (eg, the shape of the ear kernel). According to various embodiments of the present disclosure, the ear tip 181 may be formed by a combination of at least two of silicone, foam, and plastic material. For example, a region of the ear tip 181 that is inserted into and abuts against a user's ear may be formed of a silicone material, and a region into which the housing 110 is inserted may be formed of a plastic material.

In an embodiment, the wear detection sensor 182 may be disposed inside the housing 110 . The wear detection sensor 182 may be disposed such that at least a part thereof is exposed as the exterior of the audio output device 100 . The audio output device 100 may determine whether the user of the audio output device 100 wears it, based on data measured by the wear detection sensor 182 . According to various embodiments of the present disclosure, the wear detection sensor 182 may include an infrared (IR) sensor 182a and/or a biometric sensor 182b. The IR sensor 182a may detect whether the housing 110 is in contact with the user's body, and the audio output device 100 determines whether the audio output device 100 is worn based on the detection of the IR sensor 182a. can be judged

In an embodiment, the biosensor 182b may include at least one of a heart rate monitor (HRM) sensor and a saturation of percutaneous oxygen (SpO ₂ ) sensor. When the audio output device 100 is worn on the user's ear, the biosensor 182b may include at least one light emitting unit capable of outputting light of a specified wavelength band and/or receiving light reflected from the user's body. The user's heart rate may be measured using the light receiving unit. For example, the at least one light emitting unit may include at least one of an infrared light emitting unit, a red light emitting unit, a green light emitting unit, a blue light emitting unit, and a white light emitting unit. The light receiving unit may include a photodiode. According to various embodiments of the present disclosure, the wear detection sensor 182 may include only one of the IR sensor 182a and the HR sensor 182b. The wear detection sensor 182 is not limited to the IR sensor 182a and the HR sensor 182b, and may be implemented using various types of sensors (eg, an acceleration sensor or a gyro sensor). For example, the wear detection sensor 182 is one of a proximity sensor (not shown), a touch (grip) sensor (not shown), an air pressure sensor (not shown), a sound wave sensor (not shown), or a motion sensor (not shown). may include

In an embodiment, the proximity sensor (not shown) may detect whether the audio output device 100 is worn using an optical method, an RF method, or a sound wave method. For example, in the case of a proximity sensor using an optical method, a plurality of proximity sensors may be disposed according to a location where they are disposed.

In an embodiment, a touch (grip) sensor (not shown) may detect whether the audio output device 100 is worn using an electrostatic method. In an embodiment, the touch (grip) sensor is located on at least a partial region of the housing 110 according to the curved shape of the housing 110 of the audio output device 100 to detect whether the audio output device 100 is worn. can be placed.

In an embodiment, the air pressure sensor (not shown) may detect whether the audio output apparatus 100 is worn by using a difference in air pressure according to the wearing of the audio output apparatus 100 .

In an embodiment, the sound wave sensor (not shown) may include a plurality of microphones, and may detect whether the audio output device 100 is worn by analyzing a pattern of sound waves collected through the plurality of microphones. For example, it is possible to detect whether the audio output device 100 is worn by outputting an audio signal of a specified frequency using the speaker 120 and comparing the difference between the audio signals received by at least two microphones.

In an embodiment, a motion sensor (not shown) (eg, an acceleration sensor and/or a gyro sensor) may detect whether the audio output device 100 is worn by identifying a wearing motion of the audio output device 100 .

In an embodiment, the charging terminal 183 may be electrically connected to an external charging device. The audio output device 100 may be charged through the charging terminal 183 . For example, the audio output device 100 includes a battery (eg, the battery 185 of FIG. 2 ) disposed inside the housing 110 , and the battery 185 is to be charged through the charging terminal 183 . can According to various embodiments of the present disclosure, the battery 185 may be charged by wire or wirelessly. For example, the audio output device 100 may receive power from a separate external power supply device (eg, a charging case) through the charging terminal 183 .

In an embodiment, the touch pad 184 may be disposed such that at least a portion thereof is exposed to the outside of the housing 110 . For example, the touch pad 184 may be formed at a position exposed to the outside while the audio output device 100 is inserted into the user's ear. The touch pad 184 may detect a contact of the user's body (eg, a finger). The audio output device 100 may perform various functions based on a touch input sensed by the touch pad 184 . For example, the audio output apparatus 100 may perform functions such as play, stop, fast forward, rewind, volume control, and call connection or end in response to a touch input.

The audio output apparatus 100 illustrated in FIG. 1 is exemplary and is not limited thereto, and at least some of the components of the audio output apparatus 100 may be omitted or replaced. Although the audio output device 100 of FIG. 1 is illustrated as a canal type earphone, in another embodiment, the audio output device 100 may be an open type earphone. For example, the audio output device 100 does not include the ear tip 181 , but may include a speaker whose at least a part is exposed on the outer surface of the audio output device 100 . According to various embodiments of the present disclosure, the audio output device 100 may include a wing tip (not shown) that is detachably coupled to the housing 110 . For example, the wing tip (not shown) may be formed of a material having elasticity. The wingtip (not shown) may assist the audio output device 100 to be stably worn on the user's ear when the user wears the audio output device 100 .

2 is a cross-sectional view of an audio output device according to an exemplary embodiment.

FIG. 2 is a cross-sectional view taken along line A-A' of the audio output device shown in FIG. 1 .

Referring to FIG. 2 , the audio output device 100 according to an embodiment includes a housing 110 , a speaker 120 , a microphone 130 , a support member 160 , a circuit board 170 , and a battery 185 . and/or a control module 186 .

In various embodiments disclosed in this document, a “module” may be understood as hardware or circuitry for performing a predetermined function.

In an embodiment, the housing 110 may include a first housing 110 - 1 and a second housing 110 - 2 . The inside of the first housing 110-1 and the second housing 110-2 may be hollow. The housing 110 includes other components of the audio output device 100 (eg, the speaker 120 , the microphone 130 ) through the combination of the first housing 110 - 1 and the second housing 110 - 2 . ), the battery 185 , the support member 160 , or the control module 186 ) may provide an accommodating space S in which they are disposed.

In an embodiment, the first housing 110 - 1 may accommodate the speaker 120 and the first support member 160 - 1 therein. The first housing 110 - 1 may include a nozzle 119 that provides a path for the sound output from the speaker 120 to move to the outside of the first housing 110 - 1 . The first housing 110 - 1 may include a sound hole (not shown) communicating with the nozzle 119 . The sound hole (not shown) is a partial region of the first housing 110 - 1 positioned between the speaker 120 and the nozzle 119 so that the sound output from the speaker 120 can move to the nozzle 119 . can be formed in FIG. 2 may be a view in which an ear tip (eg, the ear tip 181 of FIG. 1 ) is omitted. For example, the nozzle 119 may be detachably coupled to the ear tip 181 .

In an embodiment, the second housing 110 - 2 may accommodate the microphone 130 and the second support member 160 - 2 therein. The second housing 110 - 2 may include a through hole 111 that is formed through at least a portion of the second housing 110 - 2 to be positioned adjacent to the microphone 130 . A touch pad 184 may be disposed on one side of the second housing 110 - 2 . The touch pad 184 may be disposed to be visually exposed to the outside of the second housing 110 - 2 and may be electrically connected to the control module 186 (or the circuit board 170 ).

In an embodiment, the speaker 120 may output sound. The speaker 120 may convert audio data into sound. The speaker 120 may be disposed inside the first housing 110 - 1 so as to be adjacent to the nozzle 119 . When the audio output device 100 is worn on the user's ear, the sound output by the speaker 120 may be transmitted to the user's eardrum through the nozzle 119 . The speaker 120 may be electrically connected to the control module 186 . For example, the speaker 120 may be configured to transmit and/or receive electrical signals with the control module 186 .

In an embodiment, the microphone 130 may detect a sound outside the housing 110 . The microphone 130 may be disposed inside the second housing 110 - 2 so as to be adjacent to the through hole 111 . For example, the microphone 130 may detect the user's voice. Alternatively, the microphone 130 may detect a sound generated in the vicinity of the audio output device 100 . The sound of the surrounding environment sensed by the microphone 130 may be output by the speaker 120 . In an embodiment, the microphone 130 may be a sound-collecting microphone for a noise canceling function (eg, active noise cancellation (ANC)) of the audio output device 100 . Also, the microphone 130 may be a sound-collecting microphone for a function of listening to an ambient sound (eg, a transparency function or an ambient aware function) of the audio output device 100 . For example, the microphone 130 may include various types of microphones including an electronic condenser microphone (ECM) and a micro electro mechanical system (MEMS) microphone. The microphone 130 may be electrically connected to the control module 186 .

In one embodiment, the support member 160 is disposed inside the housing 110 , and other components of the audio output device 100 (eg, the microphone 130 , the speaker 120 , the battery 185 , or circuitry) The substrate 170 may be supported. The microphone 130 , the speaker 120 , the battery 185 , and the circuit board 170 may be fixed inside the housing 110 by the support member 160 . The support member 160 includes a first support member 160-1 disposed inside the first housing 110-1 and a second support member 160-2 disposed inside the second housing 110-2. may include For example, the first support member 160 - 1 may support the speaker 120 and the battery 185 . The second support member 160 - 2 may support the microphone 130 , the control module 186 , and the battery 185 . According to various embodiments of the present disclosure, the first support member 160-1 and the second support member 160-2 may be integrally formed. The support member 160 may be formed of an injection material, a metal material, an alloy material, or a combination thereof.

In an embodiment, the circuit board 170 may be disposed inside the housing 110 , and may be electrically connected to the microphone 130 , the speaker 120 , and/or the control module 186 . The circuit board 170 may transmit an electrical signal to the microphone 130 , the speaker 120 , and/or the control module 186 . Alternatively, the circuit board 170 may transmit the electrical signal received from the microphone 130 to other components of the audio output device 100 (eg, the speaker 120 or the control module 186 ). The circuit board 170 may include a printed circuit board (PCB) or a flexible printed circuit board (FPCB).

In an embodiment, the circuit board 170 may include a first substrate 170 - 1 and a second substrate 170 - 2 . The first substrate 170 - 1 and the second substrate 170 - 2 may be electrically connected to each other. For example, the microphone 130 may be disposed on the first substrate 170 - 1 . A control module 186 may be disposed on the second substrate 170 - 2 . According to various embodiments of the present disclosure, the first substrate 170 - 1 and the second substrate 170 - 2 may be integrally configured. Alternatively, the first substrate 170-1 and the second substrate 170-2 are configured separately, and a cable (not shown) of the first substrate 170-1 and the second substrate 170-2 is formed. can be physically connected through For example, the cable may be in the form of an FPCB or wire.

In one embodiment, the battery 185 is disposed inside the housing 110 , and other components of the audio output device 100 (eg, the speaker 120 , the microphone 130 , and/or the control module 186 ) ) can be supplied with power. The battery 185 may be electrically connected to the control module 186 . For example, the battery 185 may be electrically connected to a power manager integrated circuit (PMIC) (not shown). When the audio output device 100 is connected to an external charging device (eg, a charging case), the battery 185 may be charged by wire or wirelessly through the PMIC. The remaining amount of the battery 185 may be checked by the PMIC. In an embodiment, the battery 185 is supported by the support member 160 , and thus may be fixed inside the housing 110 . For example, a portion of the battery 185 may be supported by the first support member 160 - 1 , and the remaining portion of the battery 185 may be supported by the second support member 160 - 2 . .

In an embodiment, the control module 186 may be electrically connected to the circuit board 170 . The control module 186 may include a processor (not shown) (eg, a control circuit), a communication module (not shown), and/or a sensing module (not shown).

In an embodiment, the processor (not shown) may be electrically connected to the speaker 120 , the microphone 130 , the battery 185 , a communication module (not shown), and/or a sensing module (not shown). The processor may be configured to control the speaker 120 , the microphone 130 , the battery 185 , the communication module, and the sensing module. The processor may be configured to control an external electronic device (eg, the external electronic device 300 of FIG. 11 ) connected through the communication module.

In an embodiment, the processor may control the noise canceling function or the ambient sound listening function of the audio output apparatus 100 . For example, the processor uses an external sound of the audio output device 100 acquired through the microphone 130 to remove noise included in the external sound, an anti-noise signal having an inverse phase of the noise. ), and the generated noise removal signal and audio signal may be output through the speaker 120 . Alternatively, the processor may process the external sound of the audio output device 100 at an appropriate volume and output the processed external sound and the audio signal through the speaker 120 .

In an embodiment, the communication module (not shown) may wirelessly communicate with an external electronic device (eg, the external electronic device 300 of FIG. 11 ). For example, the audio output device 100 may search for a connectable device in the vicinity of the audio output device 100 through the communication module, and may attempt to connect to the found device. The communication module may transmit data to and receive data from the connected device. The audio output device 100 may update the status of the connected device and each other through the communication module, or may transmit a command to the connected device. The communication module may communicate with the external electronic device in various ways such as Bluetooth, bluetooth low energy (BLE), Wi-Fi Direct, and/or ANT+ (pronounced ant plus).

In an embodiment, the sensing module (not shown) may include at least one sensor. The sensing module may sense heart rate, acceleration, angular velocity, infrared and/or proximity. For example, the sensing module may include an IR sensor (eg, the IR sensor 182a of FIG. 1 ), a biosensor (eg, the biosensor 182b of FIG. 2 ), an acceleration sensor, a gyro sensor, and a proximity sensor. .

3 is an enlarged cross-sectional view of a portion of an audio output device according to an exemplary embodiment.

Figure 3 (a) shows a state in which the first structure is separated from the housing, and Figure 3 (b) shows a state in which the first structure is coupled to the housing. FIG. 3 is an enlarged view of part B of the audio output device 100 shown in FIG. 2 , and a redundant description will be omitted below.

Referring to FIG. 3 , the audio output device 100 according to an embodiment includes a housing 110 (eg, the second housing 110 - 2 of FIG. 2 ), a microphone 130 , and a first structure 140 . , the second structure 150 , the first substrate 170 - 1 , and/or the support member 160 (eg, the second support member 160 - 2 of FIG. 2 ).

In an embodiment, the housing 110 provides an accommodating space S capable of accommodating the microphone 130 , the second structure 150 , the support member 160 , and the first substrate 170 - 1 therein. can do. The housing 110 includes a through hole 111 that provides a path so that the sound outside the housing 110 can move from the outside of the housing 110 toward the accommodation space S of the housing 110 . can do. The through hole 111 may at least partially communicate with the inside and outside of the housing 110 , and the external sound is transmitted to the microphone 130 disposed inside the housing 110 through the through hole 111 . can

In an embodiment, the through-hole 111 may be formed by penetrating and/or cutting at least a partial region of the outer surface of the housing 110 to a specified shape and/or size in the inner direction of the housing 110 . The through hole 111 may include a first opening 111a and a second opening 111b. The first opening 111a may be wider than the second opening 111b. For example, the first opening 111a may be formed to have a first width W1 through it. The second opening 111b may be formed through the second opening 111b to have a second width W2. The first width W1 may be formed to be larger than the second width W2 by a specified size. The first opening 111a may be configured such that at least a portion of the first structure 140 is disposed therein. For example, the first opening 111a may be formed to have a shape and/or size corresponding to the shape and/or size of the first structure 140 .

In one embodiment, the housing 110 may include a rim portion 112 or 113 surrounding the periphery of the through hole 111 and a stepped portion 114 providing a seating structure for the first structure 140 . have. The edge portion 112 or 113 includes a first edge portion 112 surrounding the first opening 111a of the through hole 111 and a second edge surrounding the second opening 111b of the through hole 111 . portion 113 . The stepped part 114 may be formed between the first edge part 112 and the second edge part 113 so that the first edge part 112 and the second edge part 113 may be connected to each other in a step. For example, the stepped portion 114 may extend from one end of the first edge portion 112 toward the inner direction of the through hole 111 (eg, the reference axis R direction). The second edge portion 113 may extend from one end of the stepped portion 114 toward the inner direction of the housing 110 . The through hole 111 is formed such that the first opening 111a is larger than the second opening 111b by connecting the first edge portion 112 and the second edge portion 113 to be stepped by the stepped portion 114 . (eg, the first width W1 is formed to be larger than the second width W2). The stepped portion 114 may include a recessed region 1141 in which at least a portion of the first structure 140 (eg, the extended portion 143) is seated. The recessed area 1141 may be formed by recessing one area of the stepped portion 114 by a predetermined depth in the inner direction of the housing 110 .

In an embodiment, the housing 110 may include a seating surface 115 on which the second structure 150 is disposed. For example, the seating surface 115 may be formed in at least a portion of the inner surface of the housing 110 . The seating surface 115 may extend from one end of the second edge part 113 in a direction substantially perpendicular to the second edge part 113 . The second structure 150 may be attached and/or fixed to a portion of the seating surface 115 . For example, when the second structure 150 is attached to the seating surface 115 and the first substrate 170 - 1 is attached to the second structure 150 , the microphone 130 and/or the first substrate ( 170 - 1 may be disposed substantially perpendicular to the second edge portion 113 .

In an embodiment, the microphone 130 may be a sound pickup microphone for collecting sound from the outside of the audio output device 100 . The microphone 130 may be disposed adjacent to the through hole 111 in the housing 110 . The microphone 130 may be disposed on the first substrate 170 - 1 to be electrically connected to the first substrate 170 - 1 . For example, the microphone 130 may be disposed on the first surface 172 of the first substrate 170 - 1 . At least a portion of the microphone 130 may be accommodated in the microphone receiving portion 162 of the support member 160 . The microphone 130 may include a microphone hole 132 for collecting sound. The first substrate 170 - 1 may include a third opening 176 communicating with the microphone hole 132 . For example, the third opening 176 may be formed to pass through the second surface 174 from the first surface 172 . The sound passing through the through hole 111 may move toward the microphone hole 132 through the third opening 176 .

According to the illustrated embodiment, the microphone 130 has a microphone hole 132 located on the bottom surface of the microphone 130 (eg, a surface in contact with the first surface 172 of the first substrate 170-1). It can be a bottom hole type microphone (eg a bottom hole microphone). However, it is not limited to the illustrated embodiment, and according to various embodiments of the present disclosure, the microphone 130 is a top hole type microphone (eg, a top hole microphone) in which the microphone hole 132 is located on the top surface of the microphone 130 . ) may be The top surface of the microphone 130 may refer to a surface facing the opposite direction to the bottom surface of the microphone 130 (eg, a surface facing the support member 160 ).

In one embodiment, the first structure 140 may have ventilation so that the sound from the outside of the housing 110 can move toward the microphone 130 . The first structure 140 may be disposed inside the first opening 111a such that at least a portion thereof is exposed to the outside of the housing 110 . The first structure 140 has a first ventilation hole 141 formed therein, a base portion 142 exposed to the outside of the housing 110 and an extension portion 143 extending in one direction along the circumference of the base portion 142 . ) may be included. The base portion 142 may be smoothly connected to the outer surface of the housing 110 , and may form a part of the exterior of the audio output device 100 . The extended portion 143 may be seated in the recessed region 1141 of the stepped portion 114 , and may be surrounded by the first edge portion 112 . For example, when the first structure 140 is coupled to the housing 110 , the extension portion 143 is seated on the stepped portion 114 , and the base portion 142 is spaced apart from the stepped portion 114 at regular intervals. can be spaced apart.

In an embodiment, the first structure 140 may be disposed in close contact with the first edge portion 112 and the stepped portion 114 . For example, by sealing the space between the first structure 140 and the housing 110 , the sound does not pass through the first ventilation hole 141 of the first structure 140 , and movement to another path is restricted. can do. According to various embodiments of the present disclosure, a sealing member (not shown) made of a flexible material may be disposed between the first structure 140 and the housing 110 .

In an embodiment, the second structure 150 may have breathability so that the sound passing through the first structure 140 can move toward the microphone 130 . The second structure 150 may be disposed between the first structure 140 and the microphone 130 . For example, the second structure 150 may be disposed between the seating surface 115 of the housing 110 and the second surface 174 of the first substrate 170 - 1 . The second structure 150 may be attached to the seating surface 115 to cover the second opening 111b inside the housing 110 . The second structure 150 may be adhered to the seating surface 115 through an adhesive tape (eg, a double-sided tape). The second structure 150 may be disposed substantially parallel to the seating surface 115 . At least a portion of the second structure 150 may be aligned with the second opening 111b in a direction substantially perpendicular to the seating surface 115 . For example, the second structure 150 is positioned at the edge of the central region 152 and the central region 152 aligned with the second opening 111b to allow sound to pass through, and is adhered to the seating surface 115 . region 153 . The adhesive region 153 of the second structure 150 may include an adhesive material.

In an embodiment, the second structure 150 may be bonded to the first substrate 170 - 1 through an adhesive member 187 . An adhesive member 187 may be disposed between the second structure 150 and the first substrate 170 - 1 . For example, the adhesive member 187 is disposed between the adhesive region 153 of the second structure 150 and the second surface 174 of the first substrate 170 - 1 , the first substrate 170 - 1 . ) and the second structure 150 may be adhered. The adhesive member 187 may include a fourth opening 1871 formed in a central portion of the adhesive member 187 to allow sound passing through the through hole 111 to move. The fourth opening 1871 may communicate with the third opening 176 of the first substrate 170 - 1 . In the audio output apparatus 100 according to an embodiment, as the first substrate 170 - 1 of the circuit board 170 is adhered to the second structure 150 through the adhesive member 187 , the first substrate 170 is -1), the microphone 130 and the second structure 150 may be arranged to be substantially parallel. Through this, it is possible to reduce the space in which the microphone 130 is disposed inside the housing 110 .

In an embodiment, the second structure 150 may include a waterproof material. The second structure 150 may be implemented using a material that does not pass through water and allows sound and/or air to pass through. For example, the second structure 150 may be formed of a waterproof sound-transmitting sheet. According to various embodiments of the present disclosure, the second structure 150 may be formed of a material having an IPX waterproof rating of a specified level. For example, the second structure 150 may be formed of a material satisfying the waterproof performance of IPX4 to IPX8.

In an embodiment, the second structure 150 may vibrate at a specified amplitude by a sound introduced from the outside of the housing 110 . For example, the second structure 150 may move in a direction substantially parallel to the movement direction of the sound (eg, +R/-R direction) while the sound passing through the first structure 140 moves to the microphone 130 . ) can vibrate. The second structure 150 may perform a function of transmitting sound to the microphone 130 by vibrating in response to the sound passing through the first structure 140 . For example, a sound transmitted to the microphone 130 by the second structure 150 may be amplified. The sound transmission function of the second structure 150 may mean exhibiting a function similar to that of a diaphragm.

In an embodiment, the housing 110 may include a first space V1 and a second space V2 formed by the first structure 140 and the second structure 150 . The first space V1 may mean a space formed between the first structure 140 and the second structure 150 . The second space V2 may mean a space formed between the second structure 150 and the microphone 130 . For example, the first space V1 may be a space surrounded by the first structure 140 , the through hole 111 , and the second structure 150 . The second space V2 may be a space surrounded by the second structure 150 , the fourth opening 1871 , and the first substrate 170 - 1 . The volume of the first space V1 may be larger than the volume of the second space V2. In the audio output apparatus 100 according to an exemplary embodiment, the volume of the first space V1 is larger than the volume of the second space V2, thereby increasing the wind noise reduction effect. However, according to various embodiments of the present disclosure, the volume of the first space V1 may be substantially the same as the volume of the second space V2.

In one embodiment. The first structure 140 , the first space V1 , the second structure 150 , and the second space V2 may form a movement path for sound to be transmitted from the outside of the housing 110 to the microphone 130 . can For example, the sound outside the housing 110 sequentially passes through the first structure 140 , the first space V1 , the second structure 150 , and the second space V2 to move to the microphone 130 . can In an embodiment, the first structure 140 , the first space V1 , the second structure 150 , and the second space V2 may be aligned in the direction of the straight reference axis R. For example, the reference axis R may be defined as an arbitrary straight line and/or an imaginary straight line substantially perpendicular to the second structure 150 and penetrating the microphone hole 132 . The audio output apparatus 100 according to an embodiment is configured such that the reference axis R passes through all of the first structure 140 , the first space V1 , the second structure 150 , and the second space V2 . As a result, the sound movement path can be formed in a substantially straight shape (eg, the movement path is not curved).

In an embodiment, the first structure 140 and the second structure 150 may be configured to have different air permeability. The air permeability of the second structure 150 may be smaller than the air permeability of the first structure 140 . The first structure 140 may be configured to allow a greater amount of air to pass therethrough than the second structure 150 . For example, the second structure 150 may be formed of a material having less air permeability than the first structure 140 . According to various embodiments of the present disclosure, the average size (or area) of the plurality of air holes (eg, the plurality of second ventilation holes 151 in FIG. 5 ) formed in the second structure 150 is the first structure ( 140) may be formed to be smaller than the average size (or area) of the plurality of air holes (eg, the plurality of first ventilation holes 141 of FIG. 4 ). Alternatively, the plurality of air holes (eg, the plurality of first ventilation holes 141 ) of the first structure 140 are formed in a regular and uniform pattern, and the plurality of air holes (eg: The plurality of second ventilation holes 151) may be formed in an irregular and disorderly pattern. Alternatively, the second air porosity of the second structure 150 (eg, the ratio of the plurality of second ventilation holes 151 to the total volume of the second structure 150 ) of the first structure 140 . may be formed to be smaller than the first porosity of (eg, the ratio of the plurality of first ventilation holes 141 to the total volume of the first structure 140 ). Alternatively, the first structure 140 may be formed to be thicker than the second structure 150 . The audio output apparatus 100 according to an embodiment may reduce wind noise detected by the microphone 130 by configuring the air permeability of the first structure 140 to be greater than the air permeability of the second structure 150 . have.

According to the embodiment disclosed in this document, in the audio output device 100 , the first structure 140 , the first space V1 , and the second By configuring the second structure 150 and the second space V2 , it is possible to provide a structure capable of attenuating wind noise. For example, an air flow that causes wind noise detected by the microphone 130 may have a reduced flow velocity while passing through the first structure 140 . The flow of air passing through the first structure 140 is mixed primarily in the inside of the first space V1 , and the correlation between the eddys forming the flow of air may be weakened. The flow of air whose correlation is weakened passes through the second structure 150 having lower air permeability than the first structure 140 , and the flow rate is reduced again, and the flow of air passing through the second structure 150 is in the second space (V2) The correlation between the tornadoes may become weaker as they are mixed secondarily inside. As such, while the flow of air sequentially passes through the first structure 140 , the first space V1 , the second structure 150 , and the second space V2 , the flow velocity and/or the flow energy may decrease. Accordingly, it is possible to provide an effect of reducing wind noise transmitted to the microphone 130 .

4 illustrates a first structure of an audio output device according to an exemplary embodiment.

Referring to FIG. 4 , the first structure 140 may include a plurality of first ventilation holes 141 to allow air permeation. The air permeability of the first structure 140 may vary depending on the number and/or size of the plurality of first ventilation holes 141 . For example, as the number or size of the first ventilation holes 141 increases, the air permeability of the first structure 140 may increase.

In an embodiment, the plurality of first ventilation holes 141 may form a regular and uniform pattern. For example, the plurality of first ventilation holes 141 formed in the first structure 140 may be formed to have the same shape and/or size to each other, and intervals between the plurality of first ventilation holes 141 are constant. can be formed. For example, the first structure 140 may have a mesh structure or a mesh structure in which the plurality of first ventilation holes 141 are formed in a uniform pattern. However, the first structure 140 is not necessarily limited to the illustrated embodiment, and according to various embodiments of the present disclosure, the first structure 140 may be formed in an irregular pattern structure.

In an embodiment, the first ventilation hole 141 may have various shapes. For example, as shown in (a) of FIG. 4 , the first ventilation hole 141a may be formed in a rectangular shape. Also, as shown in (b) of FIG. 4 , the first ventilation hole 141b may be formed in a rhombus shape. In another embodiment, the first ventilation hole 141 may be formed in a triangular, quadrangular, hexagonal, polygonal, circular or oval shape.

In an embodiment, the first structure 140 may be formed of a metal material, a synthetic resin material, a textile material, an injection material, or a combination thereof. For example, the first structure 140 may be a metal grill in which the plurality of first ventilation holes 141 are formed. Alternatively, the first structure 140 may be a fabric in which a plurality of first ventilation holes 141 are formed. Alternatively, the first structure 140 may be an injection-molded product manufactured through an injection process. For another example, the first structure 140 may be configured in a form in which a metal material and a fabric material are combined.

In an embodiment, the first structure 140 may be a metal mesh in which a plurality of first ventilation holes 141 are formed in a thin metal film through a perforation process using a mold or a laser. In an embodiment, the first structure 140 may be a fabric manufactured using cotton, wool, fabric, or metal yarn.

The audio output apparatus 100 according to an embodiment may be configured such that the first structure 140 has greater air permeability than the second structure 150 . For example, the average size of the plurality of first ventilation holes 141 of the first structure 140 may be equal to the average size of the plurality of second ventilation holes (eg, the second structure 150 of FIG. 5 ). : It may be configured to be larger than the average size of the second ventilation hole 151 of FIG. 5 .

5 illustrates a second structure of an audio output device according to an exemplary embodiment.

Referring to FIG. 5 , the second structure 150 may include a plurality of second ventilation holes 151 to allow air permeation. The air permeability of the second structure 150 may vary depending on the number and/or size of the plurality of second ventilation holes 151 . For example, as the number or size of the second ventilation holes 151 increases, the air permeability of the second structure 150 may increase.

In an embodiment, the plurality of second ventilation holes 151 may form an irregular, disordered pattern. For example, the plurality of second ventilation holes 151 formed in the second structure 150 may have different shapes and/or sizes, respectively, and the spacing between the plurality of second ventilation holes 151 is not uniform. it may not be The plurality of second ventilation holes 151 are not standardized into a specific shape, but may have different shapes. However, the second structure 150 is not necessarily limited to the illustrated embodiment, and according to various embodiments of the present disclosure, the second structure 150 may be formed in a regular pattern structure.

In an embodiment, the second structure 150 may include a fabric or a porous membrane. For example, the second structure 150 may be formed of a fabric in which the size and/or shape of the plurality of second ventilation holes 151 are irregular and formed in a disorderly pattern. As another example, the second structure 150 may be formed of a polytetrafluoroethylene (PTFE) membrane or an expanded PTFE (ePTFE) membrane. The second structure 150 may include a waterproof material.

The audio output apparatus 100 according to an embodiment may be configured such that the second structure 150 has a smaller air permeability than the first structure 140 . For example, the average size of the plurality of second ventilation holes 151 of the second structure 150 is equal to the average size of the plurality of first ventilation holes (eg, the first structure 140 of FIG. 4 ). : It may be configured to be formed smaller than the average size of the first vent hole 141 of FIG. 4 .

6 is a graph illustrating wind noise reduction performance of an audio output device according to an exemplary embodiment.

6 is a graph illustrating wind noise reduction performance according to the presence or absence of a first structure and a second structure in the audio output device according to an exemplary embodiment.

Referring to FIG. 6 , an audio output device (eg, the audio output device 100 of FIGS. 1 to 3 ) according to an embodiment includes a first structure (eg, the first structure 140 of FIG. 3 ) and a second structure. Depending on whether a structure (eg, the second structure 150 of FIG. 3 ) is included, different wind noise reduction effects may be obtained. As described above, the second structure 150 may be configured to have relatively small air permeability (air permeability) compared to the first structure 140 .

In the graph shown in FIG. 6 , embodiment a includes both a first structure (eg, the first structure 140 of FIG. 3 ) and a second structure (eg, the second structure 150 of FIG. 3 ). Yes. Embodiment b includes the first structure 140 and does not include the second structure 150 . Embodiment c is an embodiment that does not include the first structure 140 but includes the second structure 150 . Embodiment d is an embodiment that does not include both the first structure 140 and the second structure 150 .

As shown in FIG. 6 , in the case of embodiment a including both the first structure 140 and the second structure 150 , other embodiments (eg, embodiment b, embodiment c, or embodiment d) Compared with , it can be confirmed that there is a noise reduction effect in a frequency range of about 300 Hz to about 4 kHz in which wind noise exists. For example, in Example a, compared to Example d, it can be confirmed that noise is reduced by approximately 15 dB at a frequency of about 1 kHz.

The audio output device (eg, the audio output device 100 of FIGS. 1 to 3 ) according to the embodiment disclosed in this document has a first structure (eg, the first structure ( 140)) and a second structure having less air permeability than the first structure 140 (eg, the second structure 150 of FIG. 3 ) may structurally reduce wind noise. In addition, the audio output device 100 is a software solution using a signal processing device (DSP, digital signal processor) in addition to the wind noise reduction structure (eg, the first structure 140 and the second structure 150). Wind noise can be removed. According to the embodiment disclosed in this document, it is possible to provide the audio output device 100 that reduces wind noise in terms of structure and is used as an auxiliary means for reducing wind noise as a software solution. Through this, it is possible to prevent the problem of loss of the original signal due to the use of the software solution, the malfunction of the software, or the deterioration of the feeling of use due to the system delay.

7 is a graph illustrating wind noise reduction performance of an audio output device according to an exemplary embodiment.

7 may be a graph illustrating wind noise reduction performance according to a shape of a vent hole pattern of a second structure in an audio output device according to an exemplary embodiment.

Referring to FIG. 7 , the audio output device (eg, the audio output device 100 of FIGS. 1 to 3 ) according to an embodiment is formed in a second structure (eg, the second structure 150 of FIG. 3 ). Depending on the pattern of the ventilation holes to be used, each may have a different wind noise reduction effect. For example, in the graph of FIG. 7 , in the audio output device 100 shown in FIGS. 2 and 3 , wind noise for the case where the second structure 150 has an irregular pattern and a case where it has a regular pattern It may be a graph showing the reduction performance.

In the graph shown in FIG. 7 , embodiment e is a plurality of ventilation holes (eg, the second ventilation hole 151 in FIG. 5 ) of the second structure (eg, the second structure 150 of FIGS. 3 and 5 ). It may be an embodiment formed in this irregular pattern (eg, see FIG. 5 ). Embodiment f may be an embodiment in which a plurality of ventilation holes of the second structure 150 are formed in a regular pattern.

As shown in FIG. 7 , it can be confirmed that the wind noise reduction effect of Example e is superior to that of Example f. For example, in Example e, it can be confirmed that noise is reduced by about 5 dB at a frequency of about 1 kHz compared to Example f.

The audio output apparatus (eg, the audio output apparatus 100 of FIGS. 1 to 3 ) according to an embodiment includes a plurality of ventilation holes of a second structure (eg, the second structure 150 of FIGS. 3 and 5 ). (eg, the second ventilation hole 151 of FIG. 5 ) is configured to have an irregular or disordered pattern, thereby increasing the wind noise reduction effect. When the second structure 150 has an irregular pattern, the energy of the air flow causing wind noise may be more greatly attenuated. For example, a flow of air that causes wind noise may have a tornado shape, and as the tornado passes through an irregular pattern of ventilation holes, the correlation between the tornadoes may be greatly reduced. In addition, in the case of the second structure 150 (eg, Example e) in which the pattern of the ventilation holes is irregular, compared to the second structure 150 (eg, Example f) in which the pattern of the ventilation holes is regular, the second structure ( 150) and the reoccurring tornado may be smaller in size. Since the attenuation of the kinetic energy of the tornado is inversely proportional to the size of the tornado, when the ventilation holes of the second structure 150 are irregularly configured, the energy of the flow causing wind noise may be more effectively attenuated.

8 is a cross-sectional view of an audio output device according to an exemplary embodiment.

8 shows an embodiment in which the audio output device 100 shown in FIGS. 2 and 3 further includes a third structure, hereinafter, overlapping description will be omitted.

Referring to FIG. 8 , the audio output apparatus 100 according to an embodiment includes a housing 110 (eg, the second housing 110 - 2 of FIG. 2 ), a microphone 130 , and a first structure 140 . , the third structure 189 in addition to the second structure 150 , the first substrate 170-1, and/or the support member 160 (eg, the second support member 160-2 of FIG. 2 ). may include more.

In an embodiment, the third structure 189 may be disposed between the first structure 140 and the second structure 150 . The third structure 189 may prevent dust or foreign substances from being introduced into the housing 110 . For example, the third structure 189 may be a dustproof mesh or a protector.

In an embodiment, the third structure 189 may have air permeability like the first structure 140 or the second structure 150 . For example, the air permeability of the third structure 189 may be smaller than the air permeability of the first structure 140 and greater than the air permeability of the second structure 150 . For another example, the air permeability of the third structure 189 may be substantially the same as the air permeability of the first structure 140 , or may be configured to be substantially the same as the air permeability of the second structure 150 . The air permeability of the third structure 189 is not limited to the above description, and according to various embodiments of the present disclosure, the third structure 189 may be configured to have various air permeability.

In an embodiment, the third structure 189 may be disposed on the stepped portion 114 of the housing 110 to partially face the first structure 140 . For example, the third structure 189 may be adhered to the stepped portion 114 through an adhesive material. The third structure 189 may divide the first space V1. For example, the first space V1 may be divided into a third space V3 and a fourth space V4 by the third structure 189 . According to the illustrated embodiment, the third structure 189 may be disposed more adjacent to the first structure 140 than the second structure 150 , and the volume of the third space V3 is the fourth space V4 . ) may be formed smaller than the volume of However, it is not limited to the illustrated embodiment, and the position of the third structure 189 may be changed according to various embodiments of the present disclosure. For example, the third structure 189 may be disposed closer to the second structure 150 , and the volume of the third space V3 may be larger than the volume of the fourth space V4 .

9A is a cross-sectional view of an audio output device according to an exemplary embodiment. 9B is a cross-sectional view of an audio output device according to an exemplary embodiment.

9A and 9B show an audio output device having a structure different from that of the audio output device 100 according to the embodiment of FIGS. 2 and 3 . A part of the configuration of the audio output device shown in FIGS. 9A and 9B is the same as or similar to that of the audio output device 100 shown in FIGS. 2 and 3 , and thus, overlapping content will be omitted.

Referring to FIG. 9A , the audio output device 100 ′ according to an embodiment includes a housing 110 ′ (eg, the housing 110 of FIG. 3 ), a microphone 130 (eg, the microphone 130 of FIG. 3 ). )), the first structure 140 ′ (eg, the first structure 140 of FIG. 3 ), the second structure 150 ′ (eg the second structure 150 of FIG. 3 ) and/or the cover member ( 190) may be included.

In one embodiment, the housing 110 ′ may accommodate the microphone 130 therein. The housing 110 ′ may include a duct 118 that provides a path for sound from the outside of the audio output device 100 ′ to move to the microphone 130 . For example, the duct 118 may be formed to penetrate in an inner direction of the housing 110 ′ from at least a partial region of the outer surface of the housing 110 ′. The duct 118 may communicate with the microphone hole 132 of the microphone 130 .

In an embodiment, the cover member 190 may be disposed to cover at least a portion of the housing 110 ′. For example, the cover member 190 may surround the area in which the duct 118 is formed on the outer surface of the housing 110 ′. The cover member 190 may include a through hole 192 to allow sound from the outside of the audio output device 100 ′ to move to the duct 118 . According to various embodiments of the present disclosure, the cover member 190 and the housing 110 ′ may be integrally configured.

In an embodiment, the first structure 140 ′ may be coupled to one side of the cover member 190 to cover the through hole 192 . At least a portion of the first structure 140 ′ may be coupled to a position exposed to the outside of the cover member 190 . The second structure 150 ′ may be coupled to one side of the cover member 190 to be positioned between the first structure 140 ′ and the duct 118 . For example, the through hole 192 may include a first open area 192a and a second open area 192b connected to the first open area 192a at a step. The second structure 150 ′ may be disposed between the first open area 192a and the second open area 192b . In an embodiment, the first structure 140 ′ and the second structure 150 ′ may be air permeable. For example, the air permeability of the first structure 140 ′ may be greater than the air permeability of the second structure 150 ′.

According to an embodiment, a first space V1 may be formed between the first structure 140 ′ and the second structure 150 ′. A second space V2 may be formed between the first structure 140 ′ and the microphone 130 . The second space V2 may be formed by the second open area 192b of the cover member 190 and the duct 118 . The first structure 140 ′, the first space V1 , the second structure 150 ′, and the second space (eg, the second open area 192b and the duct 118 ) are formed outside the cover member 190 . A movement path for sound to be transmitted to the microphone 130 may be formed. For example, the volume of the first space V1 may be smaller than the volume of the second space V2 . As another example, the first space V1 and the second space V2 may have substantially the same volume.

In an embodiment, a sealing member 194 may be disposed between the cover member 190 and the housing 110 ′. For example, the sealing member 194 may be disposed in at least a portion of a region where the cover member 190 and the housing 110 ′ contact each other. The sealing member 194 may prevent the sound passing through the first structure 140 ′ and the second structure 150 ′ from being lost through the space between the housing 110 ′ and the cover member 190 . have.

Referring to FIG. 9B , in the audio output apparatus 100 ′ according to an embodiment, the position of the second structure 150 ′ may be changed. For example, in FIG. 9B , in the embodiment of FIG. 9A , the position at which the second structure 150 ′ is disposed is changed, and accordingly, the first space V1 and the second space V2 are changed. It may be a drawing showing

According to the embodiment shown in FIG. 9B , the second structure 150 ′ is not between the first open area 192a and the second open area 192b , but between the second open area 192b and the duct 118 . can be placed in In an embodiment, a first space V1 may be formed between the first structure 140 ′ and the second structure 150 ′, and a second space V1 may be formed between the second structure 150 ′ and the microphone 130 . A space V2 may be formed. The first space V1 may be formed by a through hole 192 (eg, the first open area 192a and the second open area 192b) of the cover member 190, and the second space V2 Silver ducts 118 may be formed. When comparing FIGS. 9A and 9B , the audio output device 100 ′ according to the embodiment of FIG. 9B has a larger size (volume) of the first space V1 than the audio output device 100 ′ according to the embodiment of FIG. 9A . ) can be configured to be larger.

9B shows an embodiment in which the position of the second structure 150 ′ is changed in FIG. 9A , but according to various embodiments of the present disclosure, the first structure 140 ′ and the second structure 150 in FIG. 9A . ') is maintained, and a third structure (not shown) (eg, the third structure 189 of FIG. 8 ) may be additionally disposed between the second open area 192b and the duct 118 .

The audio output device 100 ′ according to the embodiment shown in FIGS. 9A and 9B , like the audio output device 100 according to the embodiments of FIGS. 2 and 3 described above, includes a second structure 150 ′ ( Example: By configuring the second structure 150 of FIGS. 3 and 5 to have greater ventilation than the first structure 140 ′ (eg, the first structure 140 of FIGS. 3 and 4 ), wind noise is reduced It can provide a reducing effect.

10 is a graph illustrating wind noise reduction performance of an audio output device according to an exemplary embodiment.

FIG. 10 may be a graph illustrating wind noise reduction performance according to the presence or absence of the first structure and the second structure in the audio output device according to the embodiment of FIG. 9A .

Referring to FIG. 10 , the audio output device (eg, the audio output device 100 ′ of FIG. 9A ) according to the embodiment of FIG. 9A includes a first structure (eg, the first structure 140 ′ of FIG. 9A ) and Depending on whether the second structure (eg, the second structure 150 ′ of FIG. 9A ) is included, different wind noise reduction effects may be obtained.

In the graph shown in FIG. 10 , embodiment g may be an embodiment including both the first structure 140 ′ and the second structure 150 ′. Embodiment h may be an embodiment including the first structure 140 ′ and not including the second structure 150 ′. Embodiment i may be an embodiment in which neither the first structure 140 ′ nor the second structure 150 ′ is included. For example, embodiment i may be the audio output device 100 ′ in which the cover member 190 is omitted in FIG. 9A .

As shown in FIG. 10 , in the case of Example g including both the first structure 140 ′ and the second structure 150 ′, compared with other embodiments (eg, Examples h and Example i), It can be confirmed that there is a noise reduction effect in a frequency range of about 300 Hz to about 4 kHz in which wind noise exists. For example, in Example g, it can be confirmed that noise is reduced by about 15 dB at a frequency of about 1 kHz compared to Example i.

11 illustrates operations of an audio output device and an external electronic device according to an exemplary embodiment.

Referring to FIG. 11 , an audio output device 100 (eg, the audio output device 100 of FIGS. 1 to 3 and 8 ) according to an embodiment includes a first output device 100a and a second output device ( 100b). According to an embodiment, the audio output device 100 shown in FIG. 11 may include the audio output device 100 ′ according to the embodiments of FIGS. 9A and 9B .

In an embodiment, the first output device 100a and the second output device 100b may be worn on both ears of the user, respectively. For example, the first output device 100a may be worn on one ear of the user, and the second output device 100b may be worn on the other ear of the user. As another example, the first output device 100a and the second output device 100b may be respectively worn on different users' ears. The audio output device 100 may operate in association with the external electronic device 300 (eg, the electronic device 500 of FIG. 12 and the electronic device 601 of FIG. 13 ). Also, the audio output device 100 may operate independently of the external electronic device 300 .

The audio output device 100 according to an embodiment may be configured to communicate with the external electronic device 300 . For example, the external electronic device 300 may be one of a smart phone, a tablet PC, or a mobile device including a smart watch. In an embodiment, the first output device 100a and the second output device 100b may communicate with the external electronic device 300 . Also, the first output device 100a and the second output device 100b may communicate with each other. The external electronic device 300 may output a voice received during a call with another electronic device, a sound source stored in the external electronic device 300 or a sound source streamed in real time through a communication network, and a sound by playing at least one content. have. For example, the voice or sound source may be transmitted to the audio output device 100 and may be output by the audio output device 100 .

In an embodiment, the audio output device 100 may be wirelessly connected to the external electronic device 300 . The audio output device 100 may be connected to the external electronic device 300 by wireless communication (eg, Bluetooth or Bluetooth low energy (BLE)). The audio output device 100 may be connected to the external electronic device 300 through a handsfree profile (HFP) or an advanced audio distribution profile (A2DP). When the audio output device 100 is connected to the external electronic device 300 by HFP, the external electronic device 300 may be set as an HFP audio gateway (AG), and the audio output device 100 may be configured as a HFP handsfree unit (HF). ) can be set. When the audio output device 100 is connected to the external electronic device 300 via A2DP, the external electronic device 300 may be set to A2DP SRC (source), and the audio output device 100 may be configured to A2DP SNK (sink). can be set. The communication method between the audio output device 100 and the external electronic device 300 is not limited to a wireless connection, and the audio output device 100 may be connected to the external electronic device 300 by wire.

In an embodiment, the first output device 100a and the second output device 100b may be connected to the external electronic device 300 in different wireless methods, respectively. For example, the first output device 100a is connected to the external electronic device 300 by a first communication method (eg, Bluetooth), and the second output device 100b is connected to the first communication method (eg, Bluetooth) and The second communication method (eg, zigbee) may be connected to the external electronic device 300 .

In an embodiment, the first output device 100a and the second output device 100b may be wirelessly connected to each other. The first output device 100a may be connected to the second output device 100b by wireless communication (eg, Bluetooth or BLE). For example, the first output device 100a may be connected to the second output device 100b through HFP or A2DP. In this case, the first output device 100a may operate as a master device, and the second output device 100b may operate as a slave device. However, the present invention is not limited thereto, and the second output device 100b may operate as a master device and the first output device 100a may operate as a slave device. In another embodiment, each of the first output device 100a and the second output device 100b may operate as a master device. For example, the first output device 100a and the second output device 100b may operate independently of each other. The first output device 100a and the second output device 100b may operate independently of the external electronic device 300 . The communication method between the first output device 100a and the second output device 100b is not limited to a wireless connection, and the first output device 100a and the second output device 100b may be connected by a wire.

In an embodiment, the audio output device 100 may receive audio data related to a voice or a sound source from the external electronic device 300 by being connected to the external electronic device 300 . For example, the first output device 100a may receive audio data using a streaming technique and may output the received audio data through the speaker 120 . The first output device 100a may transmit the received audio data to the second output device 100b. As another example, the second output device 100b may receive audio data and transmit the received audio data to the first output device 100a. The audio output device 100 may output a sound source stored in the first output device 100a or the second output device 100b. In this case, the first output device 100a and the second output device 100b may not be connected to the external electronic device 300 .

In an embodiment, the external electronic device 300 acquires data (eg, biometric data) detected by the wear detection sensor 182 included in the first output device 100a and the second output device 100b. can For example, the external electronic device 300 may convert the data sensed by the first output device 100a and the data sensed by the second output device 100b to the first output device 100a or the second output device ( It can also be obtained through 100b). As another example, the external electronic device 300 may acquire data from each of the first output device 100a and the second output device 100b.

In an embodiment, the external electronic device 300 may control the audio output device 100 through communication with the audio output device 100 or set the state of the audio output device 100 . For example, the external electronic device 300 controls and controls the first output device 100a and the second output device 100b by transmitting a signal to the first output device 100a or the second output device 100b. /or you can set the state. In this case, the external electronic device 300 may transmit a signal to the master device of the audio output device 100 (eg, any one of the first output device 100a and the second output device 100b). As another example, the external electronic device 300 controls the first output device 100a and the second output device 100b by transmitting signals to the first output device 100a and the second output device 100b. and/or set the state. In this case, each of the first output device 100a and the second output device 100b may operate as a master device.

In an embodiment, the external electronic device 300 provides a first output device 100a and a second output device 100b based on information sensed by the first output device 100a and the second output device 100b. Any one of them can be set as a master device and the others can be set as slave devices. Also, the external electronic device 300 may provide a notification to the master device. For example, the notification may be related to a call or text transmitted and/or received to the external electronic device 300 . As another example, the notification may be related to the operating state of the audio output device 100 .

In an embodiment, the external electronic device 300 provides information on the operating states of the first output device 100a and the second output device 100b or the first output device ( A user interface for controlling 100a) and the second output device 100b may be provided.

12 is a block diagram illustrating a noise canceling function and a surrounding sound listening function of an audio output device according to an exemplary embodiment.

12A illustrates a signal processing operation for a noise canceling function of an audio output device. 12B illustrates a signal processing operation for a function of listening to an ambient sound of an audio output device.

12 , an audio output device 400 (eg, the audio output device 100 of FIGS. 1 to 3 and 8 , or the audio output device 100 ′ of FIGS. 9A and 9B ) according to an embodiment. ) may receive an audio signal (or audio data) from the electronic device 500 (eg, the external electronic device 300 of FIG. 11 or the electronic device 601 of FIG. 13 ), and the received audio signal may be configured to output

According to an embodiment, the audio output device 400 includes a speaker 410 (eg, the speaker 120 of FIGS. 1 and 2 ), a control module 420 (eg, the control module 186 of FIG. 2 ), A first microphone 430 (eg, the microphone 130 of FIGS. 2, 3, 8, 9A, and 9B) and/or a second microphone 440 may be included. For example, the first microphone 430 may be a microphone (eg, a feedforward microphone) for sensing and/or receiving an external sound of the audio output device 400 , and the second microphone 440 . may be a microphone (eg, a feedback microphone) that detects and/or receives a sound output from the speaker 410 .

As illustrated in FIG. 12A , the audio output apparatus 400 according to an embodiment may include a noise cancellation function. For example, the noise canceling function acquires noise included in the ambient sound of the audio output device 400 and uses an anti-noise signal having an inverse phase of the noise included in the acquired ambient sound. Therefore, it may mean an active noise cancellation (ANC) function that removes noise. According to various embodiments of the present disclosure, the audio output device 400 may be configured to perform an ANC function in a feedforward, feedback, or hybrid method.

In an embodiment, the audio output device 400 may receive and/or acquire ambient sounds of the audio output device 400 using the first microphone 430 . For example, the first microphone 430 may receive a sound external to the audio output device 400 and acquire a noise signal included in the external sound.

In an embodiment, the control module 420 may generate a noise canceling signal for removing the noise signal based on the noise signal acquired through the first microphone 430 . For example, the noise canceling signal may be generated to have an opposite phase (or opposite waveform) to the noise signal. The noise canceling signal generated by the control module 420 may cancel the noise signal. The audio output device 400 may transmit the audio signal from which the noise signal is removed to the user by outputting the audio signal received from the electronic device 500 and the noise canceling signal together.

In an embodiment, the second microphone 440 may receive a sound output through the speaker 410 and generate a feedback signal based thereon. The feedback signal may be transmitted to the control module 420 . The control module 420 may determine whether to change the characteristic of the noise canceling signal based on the feedback signal obtained through the second microphone 440 . For example, the speaker 410 may output a sound from which noise has been primarily removed, and the second microphone 440 may feed back a sound output through the speaker 410 to the control module 420 . . The control module 420 detects the size of the noise signal in the sound received through the second microphone 440, and when the size of the noise signal is less than or equal to a specified level, it is determined that there is a noise removal effect, and a noise canceling signal is generated. can keep it as it is. Conversely, when the size of the noise signal is equal to or greater than a specified level, it is determined that the noise removal effect is insufficient, and the characteristic of the existing noise canceling signal may be changed to cancel the noise signal. That is, the audio output apparatus 400 according to an embodiment may be configured to newly determine the magnitude of the phase and/or amplitude of the noise canceling signal and change the characteristics of the noise canceling signal based on the feedback result. .

As illustrated in FIG. 12B , the audio output apparatus 400 according to an embodiment may include a transparency function (eg, an ambient sound permissive mode).

In an embodiment, the audio output device 400 may receive and/or acquire ambient sounds of the audio output device 400 using the first microphone 430 . The control module 420 may adjust the level of the ambient sound acquired through the first microphone 430 . The ambient sound adjusted by the control module 420 may be output at an appropriate volume through the speaker 410 . For example, according to the ambient sound listening function of the audio output device 400 , the external sound of the audio output device 400 is output through the speaker 410 together with the audio signal transmitted from the electronic device 500 , so that the user While wearing the audio output device 400 , an external sound may be received at an appropriate volume and sound quality.

The audio output device 400 (eg, the audio output device 100 of FIGS. 1 to 3 and 8 , or the audio output device 100 ′ of FIGS. 9A and 9B ) according to various embodiments disclosed in this document is , as described above, a first structure (eg, first structure 140 in FIGS. 2, 3 and 8 , or first structure 140 ′ in FIGS. 9A and 9B ) and a second structure (eg: By including a wind noise reduction structure through the second structure 150 of FIGS. 2, 3 and 8 or the second structure 150 ′ of FIGS. 9A and 9B ), the noise canceling function (FIG. )) and/or through the first microphone 430 (eg, the microphone 130 of FIGS. It is possible to reduce wind noise from the acquired external sound. Through this, the noise canceling function and ambient sound of the audio output device 400 (eg, the audio output device 100 of FIGS. 1 to 3 and 8 , or the audio output device 100 ′ of FIGS. 9A and 9B ) The usability of the listening function can be improved.

13 is a block diagram of an electronic device in a network environment according to an embodiment.

Referring to FIG. 13 , in a network environment 600 , the electronic device 601 communicates with the electronic device 602 through a first network 698 (eg, a short-range wireless communication network) or a second network 699 . It may communicate with the electronic device 604 or the server 608 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 601 may communicate with the electronic device 604 through the server 608 . According to an embodiment, the electronic device 601 includes a processor 620 , a memory 630 , an input module 650 , a sound output module 655 , a display module 660 , an audio module 670 , and a sensor module ( 676), interface 677, connection terminal 678, haptic module 679, camera module 680, power management module 688, battery 689, communication module 690, subscriber identification module 696 , or an antenna module 697 may be included. In some embodiments, at least one of these components (eg, the connection terminal 678 ) may be omitted or one or more other components may be added to the electronic device 601 . In some embodiments, some of these components (eg, sensor module 676 , camera module 680 , or antenna module 697 ) are integrated into one component (eg, display module 660 ). can be

The processor 620, for example, executes software (eg, a program 640) to execute at least one other component (eg, a hardware or software component) of the electronic device 601 connected to the processor 620 . It can control and perform various data processing or operations. According to an embodiment, as at least part of data processing or operation, the processor 620 converts commands or data received from other components (eg, the sensor module 676 or the communication module 690) to the volatile memory 632 . may store the command or data stored in the volatile memory 632 , and store the result data in the non-volatile memory 634 . According to an embodiment, the processor 620 is a main processor 621 (eg, a central processing unit or an application processor) or a secondary processor 623 (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 601 includes a main processor 621 and an auxiliary processor 623 , the auxiliary processor 623 uses less power than the main processor 621 or is set to be specialized for a specified function. can The coprocessor 623 may be implemented separately from or as part of the main processor 621 .

The co-processor 623 may be, for example, on behalf of the main processor 621 while the main processor 621 is in an inactive (eg, sleep) state, or the main processor 621 is active (eg, executing an application). ), together with the main processor 621, at least one of the components of the electronic device 601 (eg, the display module 660, the sensor module 676, or the communication module 690) It is possible to control at least some of the related functions or states. According to an embodiment, the co-processor 623 (eg, image signal processor or communication processor) may be implemented as part of another functionally related component (eg, camera module 680 or communication module 690). have. According to an embodiment, the auxiliary processor 623 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 601 itself on which artificial intelligence is performed, or may be performed through a separate server (eg, the server 608). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

The memory 630 may store various data used by at least one component of the electronic device 601 (eg, the processor 620 or the sensor module 676 ). The data may include, for example, input data or output data for software (eg, the program 640 ) and instructions related thereto. The memory 630 may include a volatile memory 632 or a non-volatile memory 634 .

The program 640 may be stored as software in the memory 630 , and may include, for example, an operating system 642 , middleware 644 , or an application 646 .

The input module 650 may receive a command or data to be used in a component (eg, the processor 620 ) of the electronic device 601 from the outside (eg, a user) of the electronic device 601 . The input module 650 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 655 may output a sound signal to the outside of the electronic device 601 . The sound output module 655 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. The receiver may be used to receive an incoming call. According to an embodiment, the receiver may be implemented separately from or as a part of the speaker.

The display module 660 may visually provide information to the outside (eg, a user) of the electronic device 601 . The display module 660 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device. According to an embodiment, the display module 660 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.

The audio module 670 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 670 obtains a sound through the input module 650 or an external electronic device (eg, a sound output module 655 ) directly or wirelessly connected to the electronic device 601 . A sound may be output through the electronic device 602). For example, the external electronic device (eg, the electronic device 602 ) is an audio output device including a speaker or a headphone (eg, the audio output device 100 of FIGS. 1 to 3 , 8 and 11 , FIG. It may be the audio output device 100' of FIGS. 9A and 9B and/or the audio output device 400 of FIG. 12).

The sensor module 676 detects an operating state (eg, power or temperature) of the electronic device 601 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 676 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 677 may support one or more designated protocols that may be used for the electronic device 601 to directly or wirelessly connect with an external electronic device (eg, the electronic device 602 ). According to an embodiment, the interface 677 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 678 may include a connector through which the electronic device 601 can be physically connected to an external electronic device (eg, the electronic device 602 ). According to an embodiment, the connection terminal 678 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 679 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 679 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 680 may capture still images and moving images. According to an embodiment, the camera module 680 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 688 may manage power supplied to the electronic device 601 . According to an embodiment, the power management module 688 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 689 may supply power to at least one component of the electronic device 601 . According to an embodiment, the battery 689 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 690 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 601 and an external electronic device (eg, the electronic device 602 , the electronic device 604 , or the server 608 ). It can support establishment and communication performance through the established communication channel. The communication module 690 may include one or more communication processors that operate independently of the processor 620 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 690 is a wireless communication module 692 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 694 (eg, : It may include a LAN (local area network) communication module, or a power line communication module). A corresponding communication module among these communication modules is a first network 698 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 699 (eg, legacy It may communicate with the external electronic device 604 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 692 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 696 within a communication network, such as the first network 698 or the second network 699 . The electronic device 601 may be identified or authenticated.

The wireless communication module 692 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR). NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)). The wireless communication module 692 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 692 uses various technologies for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna. The wireless communication module 692 may support various requirements specified in the electronic device 601 , an external electronic device (eg, the electronic device 604 ), or a network system (eg, the second network 699 ). According to an embodiment, the wireless communication module 692 includes a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less).

The antenna module 697 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 697 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 697 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network such as the first network 698 or the second network 699 is connected from the plurality of antennas by, for example, the communication module 690 . can be selected. A signal or power may be transmitted or received between the communication module 690 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 697 .

According to various embodiments, the antenna module 697 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a specified high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( eg commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 601 and the external electronic device 604 through the server 608 connected to the second network 699 . Each of the external electronic devices 602 and 604 may be the same or a different type of the electronic device 601 . According to an embodiment, all or part of the operations performed by the electronic device 601 may be executed by one or more external electronic devices 602 , 604 , or 608 . For example, when the electronic device 601 is to perform a function or service automatically or in response to a request from a user or other device, the electronic device 601 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 601 . The electronic device 601 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 601 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 604 may include an Internet of things (IoT) device. The server 608 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 604 or the server 608 may be included in the second network 699 . The electronic device 601 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

The audio output apparatuses 100 and 400 according to the exemplary embodiment disclosed in this document include a housing 110 having a speaker 120 disposed therein and having a through hole 111 formed therein; a microphone 130 disposed adjacent to the through hole 111 in the housing 110 and receiving a sound from the outside of the housing 110 through the through hole 111; a first structure 140 coupled to the housing 110 to cover the through hole 111 and having a plurality of first vent holes 141 formed therein to allow air permeation; and a second structure 150 disposed between the first structure 140 and the microphone 130 and having a plurality of second ventilation holes 151 formed therein to allow air permeation. A portion of the structure 140 is exposed to the outside of the housing 110 , and a first space V1 is formed between the first structure 140 and the second structure 150 , and the microphone 130 and A second space V2 is formed between the second structures 150 , and the first structure 140 , the first space V1 , the second structure 150 , and the second space V2 . Silver forms at least a part of a movement path through which the sound outside the housing 110 is transmitted to the microphone 130 , and the air permeability of the second structure 150 is determined by the first structure 140 . ) may be formed to be smaller than the air permeability of the.

In various embodiments, the average size of the plurality of second ventilation holes 151 may be smaller than the average size of the plurality of first ventilation holes 141 .

In various embodiments, the first structure 140 is configured such that the plurality of first ventilation holes 141 form a regular pattern, and the second structure 150 includes the plurality of first ventilation holes 141 . The second ventilation hole 151 may be configured to form an irregular pattern.

In various embodiments, the first structure 140 has a first air porosity, which is a ratio of the plurality of first ventilation holes 141 to the total volume of the first structure 140 , The second structure has a second porosity that is a ratio of the plurality of second ventilation holes 151 to the total volume of the second structure 150, and the second porosity is the first porosity It can be formed smaller.

In various embodiments, the volume of the second space V2 may be formed to be substantially the same as the volume of the first space V1, or may be formed to be smaller than the volume of the first space V1. have.

In various embodiments, the first structure 140 may include at least one of a metal, a synthetic resin, and a fabric.

In various embodiments, the second structure 150 may include a fabric or a porous membrane.

In various embodiments, the porous membrane may include at least one of a polytetrafluoroethylene (PTFE) membrane and an expanded PTFE (ePTFE) membrane.

In various embodiments, the second structure 150 may include a waterproof material.

In various embodiments, the second structure 150 may be configured to vibrate by a sound transmitted from the outside of the housing 110 .

In various embodiments, the through hole 111 includes a first opening 111a having a first width W1 and an inner direction from the first opening 111a to the housing 110 . A second opening 111b extending and having a second width W2 may be included, and the first width W1 may be greater than the second width W2 .

In various embodiments, at least a portion of the first structure 140 may be disposed inside the first opening 111a.

In various embodiments, the housing 110 has a step difference from the first edge part 112 to surround the first edge part 112 surrounding the first opening 111a and the second opening 111b. A second edge portion 113 connected to each other and a stepped portion 114 formed between the first edge portion 112 and the second edge portion 113 and on which at least a portion of the first structure 140 is seated. ) may be included.

In various embodiments, in the first structure 140 , the first ventilation hole 141 is formed, and the base portion 142 exposed to the outside of the housing 110 and the circumference of the base portion 142 are formed. It includes an extension portion 143 extending in one direction along the line, the base portion 142 is spaced apart from the stepped portion 114 at a predetermined distance, and the extension portion 143 is the stepped portion 114 . It may be seated in at least some areas.

In various embodiments, a third structure 189 disposed between the first structure 140 and the second structure 150 and formed to allow air permeation; further including, the first space V1 ) may be divided into a third space V3 and a fourth space V4 by the third structure 189 .

In various embodiments, the support member 160 is disposed inside the housing 110, the receiving portion 162 in which at least a portion of the microphone 130 is accommodated is formed; and a circuit board 170 disposed inside the housing 110 to be supported by the support member 160 and electrically connected to the speaker 120 and the microphone 130 .

In various embodiments, the circuit board 170 includes a first substrate 170 - 1 disposed between the support member 160 and the second structure 150 and on which the microphone 130 is disposed. , the first substrate 170 - 1 may be disposed to be substantially parallel to the second structure 150 .

In various embodiments, the first substrate 170 - 1 faces a first surface 172 on which the microphone 130 is disposed and opposite to the first surface 172 , and the second structure 150 . ) to which the second surface 174 is attached, and an adhesive member 187 may be disposed between the second surface 174 and the second structure 150 .

The earbuds 100 and 400 capable of wirelessly connecting to the electronic devices 300 , 500 , and 601 according to the embodiments disclosed in this document include a housing 110 including a through hole 111 ; a speaker 120 disposed inside the housing 110 and outputting an audio signal to the outside of the housing 110; a microphone 130 disposed adjacent to the through hole 111 in the housing 110 and configured to sense ambient sound of the earbuds 100 and 400 through the through hole 111; A first structure 140 coupled to the housing 110 to cover the through hole 111 and having a plurality of first ventilation holes 141 formed therein to have a predetermined air permeability, the plurality of The first ventilation hole 141 is formed in a regular pattern; and a second structure disposed between the first structure 140 and the microphone 130 and having a plurality of second ventilation holes 151 having an air permeability smaller than the air permeability of the first structure 140 . (150), the plurality of second ventilation holes 151 are formed in an irregular pattern; a portion of the first structure 140 is exposed to the outside of the first housing 110, and the first A first space V1 is formed between the structure 140 and the second structure 150 , and a volume of the first space V1 is formed between the microphone 130 and the second structure 150 . ) is formed, a second space V2 having a smaller volume is formed, and ambient sound of the earbuds 100 and 400 is generated by the first structure 140 , the first space V1 , and the second structure 150 . ) and the second space V2 may be configured to be transmitted to the microphone 130 .

In various embodiments, the second structure 150 may include a waterproof porous material, and the porous material may include at least one of a fabric, a polytetrafluoroethylene (PTFE) membrane, and an expanded PTFE (ePTFE) membrane.

The electronic device according to various embodiments disclosed in this document may be a device of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates otherwise. As used herein, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A , B, or C" each may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish the element from other elements in question, and may refer to elements in other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is "coupled" or "connected" to another (eg, second) component, with or without the terms "functionally" or "communicatively". When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit. can be used as A module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are stored in a storage medium (eg, internal memory 636 or external memory 638) readable by a machine (eg, electronic devices 300, 500, 601). It may be implemented as software (eg, program 640 ) including one or more stored instructions. For example, the processor 620 of the device (eg, the electronic devices 300 , 500 , 601 ) may call at least one command among one or more commands stored from a storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the called at least one command. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not include a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

According to an embodiment, the method according to various embodiments disclosed in this document may be provided by being included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or via an application store (eg Play Store™) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly between smartphones (eg: smartphones) and online. In the case of online distribution, at least a part of the computer program product may be temporarily stored or temporarily created in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, each component (eg, a module or a program) of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. . According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repetitively, or heuristically, or one or more of the operations are executed in a different order, omitted, or , or one or more other operations may be added.

Claims (20)

An audio output device comprising:
a housing having a speaker disposed therein and having a through hole formed therein;
a microphone disposed adjacent to the through hole in the housing and configured to receive a sound from the outside of the housing through the through hole;
a first structure coupled to the housing to cover the through hole and having a plurality of first vent holes formed therein to allow air permeation; and
a second structure disposed between the first structure and the microphone and having a plurality of second ventilation holes formed therein to allow air permeation;
A portion of the first structure is exposed to the outside of the housing,
A first space is formed between the first structure and the second structure,
A second space is formed between the microphone and the second structure,
The first structure, the first space, the second structure, and the second space form at least a part of a movement path through which the sound outside the housing is transmitted to the microphone,
An air permeability of the second structure is formed to be smaller than an air permeability of the first structure. The method according to claim 1,
An average size of the plurality of second ventilation holes is formed to be smaller than an average size of the plurality of first ventilation holes. The method according to claim 1,
The first structure, the plurality of first ventilation holes are configured to form a regular pattern (regular pattern),
The second structure is configured such that the plurality of second ventilation holes form an irregular pattern. The method according to claim 1,
The first structure has a first air porosity that is a ratio of the plurality of first ventilation holes to the total volume of the first structure,
The second structure has a second porosity that is a ratio of the plurality of second ventilation holes to the total volume of the second structure,
The second porosity is formed to be smaller than the first porosity, the audio output device. The method according to claim 1,
The volume of the second space is,
The audio output device is formed to be substantially the same as the volume of the first space or formed to be smaller than the volume of the first space. The method according to claim 1,
The first structure comprises at least one of a metal, a synthetic resin, and a fabric, the audio output device. The method according to claim 1,
wherein the second structure comprises a fabric or a porous membrane. 8. The method of claim 7,
The porous membrane comprises at least one of a polytetrafluoroethylene (PTFE) membrane and an expanded PTFE (ePTFE) membrane. The method according to claim 1,
The second structure includes a material having a water resistance, audio output device. The method according to claim 1,
The second structure is configured to vibrate by a sound transmitted from outside the housing. The method according to claim 1,
The through hole is
a first opening having a first width; and
a second opening extending from the first opening toward the inside of the housing and having a second width;
The first width is formed to be larger than the second width, the audio output device. 12. The method of claim 11,
at least a portion of the first structure is disposed inside the first opening. 12. The method of claim 11,
The housing is
a first edge portion surrounding the first opening;
a second edge portion connected stepwise from the first edge portion so as to surround the second opening; and
and a stepped portion formed between the first edge portion and the second edge portion and on which at least a portion of the first structure is seated. 14. The method of claim 13,
The first structure is
The first ventilation hole is formed and includes a base portion exposed to the outside of the housing and an extension portion extending in one direction along the circumference of the base portion,
The base portion is spaced apart from the stepped portion at a predetermined interval,
The extended portion is seated on at least a partial area of the stepped portion, the audio output device. The method according to claim 1,
A third structure disposed between the first structure and the second structure and formed to allow air permeation; further comprising,
The first space is divided into a third space and a fourth space by the third structure. The method according to claim 1,
a support member disposed inside the housing and having a receiving portion accommodating at least a portion of the microphone; and
and a circuit board disposed inside the housing to be supported by the support member and electrically connected to the speaker and the microphone. 17. The method of claim 16,
The circuit board is
and a first substrate disposed between the support member and the second structure and on which the microphone is disposed,
and the first substrate is disposed to be substantially parallel to the second structure. 18. The method of claim 17,
The first substrate is
A first surface on which the microphone is disposed and a second surface facing the opposite direction to the first surface, the second surface to which the second structure is attached,
An adhesive member is disposed between the second surface and the second structure. In an earbud capable of wireless connection with an electronic device,
a housing including a through hole;
a speaker disposed inside the housing and outputting an audio signal to the outside of the housing;
a microphone disposed adjacent to the through hole in the housing and configured to sense ambient sound of the earbud through the through hole;
a first structure coupled to the housing to cover the through-hole and having a plurality of first ventilation holes to have a predetermined air permeability, the plurality of first ventilation holes being formed in a regular pattern; and
A second structure disposed between the first structure and the microphone and having a plurality of second ventilation holes formed therein to have an air permeability smaller than the air permeability of the first structure, the plurality of second ventilation holes having an irregular pattern formed; including;
A portion of the first structure is exposed to the outside of the first housing,
A first space is formed between the first structure and the second structure,
A second space having a volume smaller than a volume of the first space is formed between the microphone and the second structure,
and the ambient sound of the earbud is configured to be transmitted to the microphone through the first structure, the first space, the second structure and the second space. 20. The method of claim 19,
The second structure includes a porous material having a waterproof property,
The porous material comprises at least one of a fabric, a polytetrafluoroethylene (PTFE) membrane, and an expanded PTFE (ePTFE) membrane.

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