Ear-wearable electronic device including rear duct

Abstract

According to one embodiment, an ear-wearable electronic device may comprise: a housing defining the exterior of the ear-wearable electronic device; a first microphone disposed in the housing so as to be exposed to the outside when the ear-wearable electronic device is worn; a second microphone disposed in the housing so as to face the inside of a user's ear when the ear-wearable electronic device is worn; and a speaker. The housing may include a first inner space located in front of the speaker in the housing in order to function as an acoustic duct. The housing may include a second inner space located behind the speaker in order to function as a resonance space for acoustic signals output from the speaker. The housing may include a rear duct extending from the second inner space to an outer space of the ear-wearable electronic device. The housing may include a sound absorbing member disposed in the rear duct.

Description

Ear-worn electronic device including a rear duct

[0001] The following descriptions relate to an ear-worn electronic device including a rear duct.

[0002] Personal audio devices, such as earphones and earbuds, are inserted into or around the user's ears to provide various audio content, including music, audiobooks, and calls. While audio devices initially connected to a host device via wires, they are transitioning to wireless communication, particularly Bluetooth. Furthermore, various features such as noise canceling and ambient sound modes are being added to enhance the user experience.

[0003] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art related to the present disclosure.

[0004] According to one embodiment, an ear-wearable electronic device may include a housing defining the exterior of the ear-wearable electronic device, a first microphone disposed within the housing so as to be exposed to the outside when the ear-wearable electronic device is worn, a second microphone disposed within the housing so as to be directed toward the inside of the user's ear when the ear-wearable electronic device is worn, and a speaker. The housing may include a first internal space located in front of the speaker within the housing to function as an acoustic duct. The housing may include a second internal space located behind the speaker to function as a resonance space for an acoustic signal output from the speaker. The housing may include a rear duct extending from the second internal space to an external space of the ear-wearable electronic device. The housing may include a sound-absorbing member disposed within the rear duct.

[0005] FIG. 1 is a drawing showing an ear-worn electronic device according to one embodiment.

[0006] FIG. 2a is a drawing showing an ear-worn electronic device according to one embodiment.

[0007] FIG. 2b is a drawing showing an ear-worn electronic device according to one embodiment.

[0008] FIG. 3a illustrates the structure of a sound-absorbing member according to one embodiment.

[0009] FIG. 3b illustrates the structure of a sound-absorbing member according to one embodiment.

[0010] FIG. 3c illustrates the structure of a sound-absorbing member and a rear duct according to one embodiment.

[0011] FIG. 4a shows a change in sound pressure level according to a sound-absorbing member according to one embodiment.

[0012] FIG. 4b shows a change in frequency response according to a sound-absorbing member according to one embodiment.

[0013] FIG. 5 shows an exploded perspective view relating to a part of a housing including a rear duct according to one embodiment.

[0014] FIG. 6a illustrates an example of a rear duct disposed within the housing of an ear-worn electronic device according to one embodiment.

[0015] FIG. 6b illustrates a specific example of a rear duct according to one embodiment.

[0016] FIG. 7a illustrates an example of a rear duct disposed within the housing of an ear-worn electronic device according to one embodiment.

[0017] FIG. 7b illustrates a specific example of a rear duct according to one embodiment.

[0018] FIG. 8a shows the change in sound pressure level according to the length of the rear duct and the sound-absorbing member according to one embodiment.

[0019] FIG. 8b shows the change in frequency response according to the length of the rear duct and the sound-absorbing member according to one embodiment.

[0020] FIG. 9 is a block diagram of an exemplary electronic device according to one embodiment.

[0021] Hereinafter, embodiments of the present disclosure are described in detail with reference to the drawings so that those skilled in the art can easily practice them. However, the present disclosure may be embodied in various different forms and is not limited to the embodiments described herein. In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Furthermore, in the drawings and related descriptions, descriptions of well-known functions and configurations may be omitted for clarity and brevity.

[0022] FIG. 1 is a drawing showing an ear-worn electronic device according to one embodiment.

[0023] Referring to FIG. 1, an ear-worn electronic device (100) can be worn on a user's ear to provide sound. For example, the ear-worn electronic device (100) may be referred to as a wearable device. The ear-worn electronic device (100) may be configured to provide sound signals to a user based on emitting sound signals through a speaker (120).

[0024] For example, the ear-worn electronic device (100) may output (or emit) an acoustic signal corresponding to said signal through a speaker (120) based on receiving a signal from another electronic device outside the ear-worn electronic device (100). For example, the ear-worn electronic device (100) may be connected to another electronic device outside the ear-worn electronic device (100) via a wireless communication method (e.g., Bluetooth), but is not limited thereto.

[0025] For example, the ear-worn electronic device (100) may be referred to as an earpiece, earbuds, earphone, headphone, or personal audio device.

[0026] For example, the ear-worn electronic device (100) may acquire a first acoustic signal from outside the ear-worn electronic device (100) through a microphone (e.g., microphone (102) or microphone (104)). Based on acquiring the first acoustic signal from outside, the ear-worn electronic device (100) may output (or emit) an acoustic signal through a speaker (120). For example, the microphone (e.g., microphone (102) or microphone (104)) may be used to acquire information about the external environment, but is not limited thereto.

[0027] An electronic device (100) according to one embodiment may include a housing (110), a speaker (120), a microphone (102), a microphone (104), and an ear tip (190).

[0028] According to one embodiment, the housing (110) may form the exterior of the electronic device (100). The housing (110) may come into contact with the user's ear. For example, the housing (110) may provide a space for accommodating at least some of the components of the ear-wearing electronic device (100). For example, the housing (110) may provide a space for placing at least some of the components of the ear-wearing electronic device (100). The housing (110) may surround at least some of the components of the ear-wearing electronic device (100). For example, the housing (110) may include an acoustic duct (111), a first internal space (112), a second internal space (114), and a rear duct (115).

[0029] According to one embodiment, a speaker (120) configured to output an acoustic signal may be placed inside a housing (110). For example, the speaker (120) may include a full-range speaker (121) for outputting a full-range acoustic signal and / or a tweeter speaker (122) for outputting a high-frequency acoustic signal. For example, the full-range speaker (121) may be spaced apart from the acoustic duct (111) by a first distance (d1). The tweeter speaker (122) may be spaced apart from the acoustic duct (111) by a second distance (d2). The first distance (d1) may be longer than the second distance (d2). The second distance (d2) may be shorter than the first distance (d1).

[0030] For example, a speaker (120) (e.g., a full-band speaker (121) or a tweeter speaker (122)) may include a diaphragm (125) for generating an acoustic signal by vibration. An acoustic signal may be emitted by the vibration of the diaphragm (125). As the diaphragm (125) vibrates, an acoustic signal may be formed in the first internal space (112) and the second internal space (114).

[0031] In one embodiment, an acoustic duct (111) may be formed at the end (116) of the housing (110). The acoustic duct (111) may be connected to a first internal space (112). An acoustic signal formed in the first internal space (112) may be output (or emitted) to the outside through the acoustic duct (111). A second internal space (114) may function as a resonance space for the acoustic signal formed in the second internal space (112).

[0032] According to one embodiment, the first internal space (112) and the second internal space (114) may be separated by a diaphragm (125). In a non-limiting example, the first internal space (112) and the second internal space (114) may be separated by a diaphragm (125) and a partition (118) of the housing (110). For example, the housing (110) may include a vent hole (117) connecting the first internal space (112) and the second internal space (114) placed in the partition (118). The vent hole (117) may be placed for pressure equilibrium between the first internal space (112) and the second internal space (114). For example, the vent hole (117) can reduce (or eliminate) fatigue caused by pressure applied to the user's eardrum by regulating the pressure within the user's ear canal and the external pressure balance when the user wears the ear-worn electronic device (100). Alternatively, or optionally, the housing (110) may not include the vent hole (117). If the housing (110) does not include the vent hole (117), the first internal space (112) and the second internal space (114) may not be connected. An example of an ear-worn electronic device (100) that does not include the vent hole (117) will be described later in FIG. 2b.

[0033] According to one embodiment, the rear duct (115) may include a hole (119). For example, the rear duct (115) may extend the external space of the ear-worn electronic device (100) from the second internal space (114). For example, the hole (119) of the rear duct (115) may be connected to the second internal space (114) through the rear duct (115). The second internal space (114) may be connected to the outside of the ear-worn electronic device (100) through the rear duct (115).

[0034] According to one embodiment, the ear tip (190) may be coupled to the housing (110). For example, the ear tip (190) may be coupled to the end (116) of the housing (110) so as to surround the acoustic duct (111). By contacting the ear of a user wearing the ear-worn electronic device (100), the ear tip (190) can reduce the leakage of sound output to the acoustic duct (111).

[0035] Although not illustrated, the housing (110) may include at least one of a processor, memory, sensor, and / or communication circuit for controlling the ear-wearing electronic device (100). At least one of the processor, memory, sensor, and / or communication circuit may be placed within the housing (110).

[0036] FIG. 2a is a drawing showing an ear-worn electronic device according to one embodiment.

[0037] Referring to FIG. 2a, the ear-worn electronic device (100) may include a rear duct (115) to improve sound quality and prevent sound leakage. For example, a second internal space (114) (or a first internal space (112)) may function as a resonance space for an acoustic signal. Resonance may occur in the second internal space (114) depending on the acoustic signal generated by the vibration of the diaphragm (125) of the speaker (120). The larger the size of the second internal space (114) (or the first internal space (112)) and the longer the length of the rear duct (115), the higher the quality of the acoustic signal output from the ear-worn electronic device (100). However, since the ear-worn electronic device (100) is inserted into the user's ear (e.g., the external auditory canal) and operates, the size of the ear-worn electronic device (100) may have a significant impact on the user's usability. Additionally, since components for the operation of the ear-worn electronic device (100) (e.g., processor, battery, memory, speaker (120)) are placed within the housing (110), if the length of the rear duct (115) is increased, the size of the internal space (e.g., first internal space (112) or second internal space (114)) may be reduced.

[0038] For example, an acoustic signal from the second internal space (114) may be emitted to the outside through the rear duct (115). However, an acoustic signal emitted through the rear duct (115) may cause sound leakage, thereby reducing the user experience. Additionally, the ear-worn electronic device (100) may include a microphone (104) that is exposed to the outside of the ear-worn electronic device (100) when the ear-worn electronic device (100) is worn by a user.

[0039] For example, the microphone (104) may be configured to acquire a first external acoustic signal. The microphone (102) may be configured to acquire a second acoustic signal that enters the first internal space (112) through the acoustic duct (111). Although not illustrated, a processor (not illustrated) of the ear-worn electronic device (100) may control (or change) the acoustic signal output through the speaker (120) based on the first acoustic signal and the second acoustic signal. For example, the microphone (102) may be referred to as an error microphone. The microphone (104) may be referred to as a reference microphone.

[0040] For example, the microphone (104) may be placed within the second internal space (114). As the microphone (104) is placed within the second internal space (114), an acoustic signal emitted through the rear duct (115) may be acquired again by the microphone (104) through the path (201). When the acoustic signal emitted through the rear duct (115) is acquired again by the microphone (104), the ear-worn electronic device (100) may output an amplified acoustic signal through the speaker (120). Accordingly, an acoustic shock accident may occur.

[0041] According to one embodiment, since the ear-worn electronic device (100) is worn on the user's ear and operates, an acoustic signal output through the acoustic duct (111) can be reflected through the user's external auditory canal (or internal auditory canal). The reflected acoustic signal can be fed back into the acoustic duct (111). A microphone (102) positioned toward the acoustic duct (111) can acquire the reflected acoustic signal. As the reflected acoustic signal is acquired by the microphone (102), feedback noise may be generated. This may cause an occlusion effect.

[0042] According to one embodiment, in order to reduce (or prevent) the aforementioned closure effect, the ear-worn electronic device (100) may have a structure that does not seal the user's external auditory canal when worn by a user. When the ear-worn electronic device (100) has a structure that does not seal the user's external auditory canal, acoustic signals generated from the outside can pass through the ear-worn electronic device (100), so the closure effect may be reduced. However, the noise blocking ability of the ear-worn electronic device (100) may be reduced.

[0043] According to one embodiment, to reduce (or prevent) the aforementioned occlusion effect, the ear-worn electronic device (100) may include an ear tip. When the ear tip is not in close contact with the user's external auditory canal, an acoustic signal generated from the outside can pass through the ear-worn electronic device (100), so the occlusion effect may be reduced.

[0044] According to one embodiment, to reduce (or prevent) the aforementioned occlusion effect, the ear-worn electronic device (100) may include a rear duct (115). The rear duct (115) may function to allow an acoustic signal generated from the outside to pass through the ear-worn electronic device (100). The rear duct (115) may connect the outside of the ear-worn electronic device (100) with the internal space of the ear-worn electronic device (100) (e.g., a second internal space (114)). For example, as the outside of the ear-worn electronic device (100) and the internal space of the ear-worn electronic device (100) (e.g., a second internal space (114)) are connected through the rear duct (115), the occlusion effect may be reduced. Accordingly, the quality of the acoustic signal provided to the user (e.g., an acoustic signal emitted through the acoustic duct (111)) may be increased. For example, as the external space of the ear-worn electronic device (100) and the internal space of the ear-worn electronic device (100) are connected through the rear duct (115), the quality of the acoustic signal in the reference frequency band (e.g., about 500 Hz to 3 kHz) can be increased. For example, as the length of the rear duct (115) increases, the quality of the acoustic signal in the reference frequency band (e.g., about 500 Hz to 3 kHz) can be increased.

[0045] According to one embodiment, an ear-worn electronic device (100) may have a sound-absorbing member (210) disposed within a rear duct (115). For example, the sound-absorbing member (210) may absorb at least some or all of the acoustic signals emitted through the rear duct (115). For example, the sound-absorbing member (210) may absorb at least some or all of the acoustic signals emitted along a path (201). The magnitude of the acoustic signal at a point (212) within the rear duct (115) in the path (201) may be smaller than the magnitude of the acoustic signal at a point (211) within the rear duct (115) in the path (201).

[0046] For example, an acoustic signal emitted through the rear duct (115) may be scattered (or reflected) when passing through the sound-absorbing member (210). As the acoustic signal is scattered (or reflected), the acoustic signal may be converted into thermal energy. The converted thermal energy may be absorbed by the sound-absorbing member (210) and released to the outside through the rear duct (115). Thus, the magnitude of the acoustic signal emitted to the outside of the ear-worn electronic device (100) may be reduced. Specific examples of the sound-absorbing member (210) placed within the rear duct (115) will be described later in FIGS. 3A and 3B.

[0047] FIG. 2b is a drawing showing an ear-worn electronic device according to one embodiment.

[0048] Referring to FIG. 2b, the ear-worn electronic device (100) shown in FIG. 2b may include at least some or all of the components of the ear-worn electronic device (100) shown in FIG. 2a.

[0049] According to one embodiment, the ear-worn electronic device (100) may not include an ear tip (e.g., the ear tip (190) of FIG. 2a). For example, the ear-worn electronic device (100) may be an open-type earphone used without an ear tip. For example, the ear-worn electronic device (100) may be an audio device that can be used as an in-ear earphone or an open-type earphone depending on whether an ear tip is attached.

[0050] According to one embodiment, the ear-worn electronic device (100) may not include a vent hole (e.g., the vent hole (117) of FIG. 2A). For example, the first internal space (112) and the second internal space (114) may be separated by a partition (118). For example, the first internal space (112) and the second internal space (114) may be separated by a partition (118) and a diaphragm (125). Although not illustrated, according to an embodiment, the second internal space (114) may include a duct (not illustrated) for connection to the outside of the ear-worn electronic device (100). The duct (not illustrated) for connection to the outside of the ear-worn electronic device (100) may be distinguished from an acoustic duct (111). For example, a duct (not shown) for connection to the outside of the ear-worn electronic device (100) may be placed in a part of the housing corresponding to the second internal space (114).

[0051] FIG. 3a illustrates the structure of a sound-absorbing member according to one embodiment.

[0052] FIG. 3b illustrates the structure of a sound-absorbing member according to one embodiment.

[0053] FIG. 3c illustrates the structure of a sound-absorbing member and a rear duct according to one embodiment.

[0054] Referring to FIGS. 3a, 3b, and 3c, a sound-absorbing member (210) may be disposed within a rear duct (115). For example, the rear duct (115) may be defined by a first surface (301) and a second surface (302). Although not illustrated, the rear duct (115) may be defined by a first surface (301), a second surface (302), one side (not illustrated), and another side (not illustrated) opposite to the first side. According to an embodiment, the rear duct (115) may be formed by a recess formed within a part of the housing (110) and a panel covering a part of the housing (110). For example, the second surface (302), one side (not illustrated), and other side (not illustrated) of the rear duct (115) may be included in a part of the recess formed within a part of the housing (110). For example, the first surface (301) of the rear duct (115) may be included in a cover included in the housing (110) of the ear-worn electronic device (100). The recess and panel for forming the rear duct (115) will be described later in FIG. 5.

[0055] According to one embodiment, the sound-absorbing member (210) may occupy a portion of the rear duct (115) to reduce leakage of acoustic signals emitted through the rear duct (115). For example, the sound-absorbing member (210) may block at least a portion of the rear duct (115). For example, the sound-absorbing member (210) may be attached to a first surface (301) of the rear duct (115). The sound-absorbing member (210) may be attached to a second surface (302) of the rear duct (115).

[0056] Referring to FIG. 3a, the sound-absorbing member (210) may include a plurality of layers. The sound-absorbing member (210) may include a first layer (311) containing a sound-absorbing material, a second layer (312) containing an adhesive member above the first layer (311), and a third layer (313) containing an adhesive member below the first layer (311). According to an embodiment, at least one of the second layer (312) and the third layer (313) may be omitted. For example, the sound-absorbing member (210) may include a first layer (311) and a second layer (312) containing an adhesive member. The sound-absorbing member (210) including the first layer (311) and the second layer (312) may be attached to a first surface (301) of a rear duct (115). For example, the sound-absorbing member (210) may include a first layer (311) and a third layer (313) including an adhesive member. The sound-absorbing member (210) including the first layer (311) and the third layer (313) may be attached to the second surface (302) of the rear duct (115).

[0057] The second layer (312) may be in contact with the first surface (301) defining the rear duct (115). The third layer (313) may be in contact with the second surface (302) defining the rear duct (115). The second layer (312) may be attached to the first surface (301) defining the rear duct (115). The third layer (313) may be attached to the second surface (302) defining the rear duct (115).

[0058] Although not illustrated, an adhesive member may be placed on one side (303) of the sound-absorbing member (210). An adhesive member may be placed on the other side (304) of the sound-absorbing member (210). One side (303) of the sound-absorbing member (210) may also be in contact (or attached) with one side (not illustrated) defining the rear duct (115). The other side (304) of the sound-absorbing member (210) may also be in contact (or attached) with the other side (not illustrated) defining the rear duct (115).

[0059] According to one embodiment, the sound-absorbing member (210) may include a porous material. For example, the sound-absorbing member (210) may include at least one of glass wool or stone wool. The sound-absorbing member (210) may include a combination of glass wool or stone wool.

[0060] Referring to FIG. 3b, the sound-absorbing member (210) may include a mesh enclosure (322) and a sound-absorbing material (321) wrapped in the mesh enclosure (322). For example, the sound-absorbing material (321) may include at least one of glass wool or stone wool. The sound-absorbing material (321) may include a combination of glass wool or stone wool, but is not limited thereto.

[0061] As an example not limited to, the sound-absorbing member (210) may further include a plurality of layers. For example, the sound-absorbing member (210) may further include an adhesive member (323) for attachment on a first surface (301) defining a rear duct (115) and an adhesive member (324) for attachment on a second surface (302) defining a rear duct (115). The sound-absorbing member (210) may be attached on the first surface (301) defining the rear duct (115) through the adhesive member (323). The sound-absorbing member (210) may be attached on the second surface (302) defining the rear duct (115) through the adhesive member (324). Depending on the embodiment, at least one of the adhesive member (323) and the adhesive member (324) may be omitted. For example, a sound-absorbing member (210) including an adhesive member (323) can be attached to a first surface (301). For example, a sound-absorbing member (210) including an adhesive member (324) can be attached to a second surface (302).

[0062] According to FIGS. 3a and 3b, since the sound-absorbing member (210) is attached to the rear duct (115), the sound-absorbing member (210) may not move within the rear duct (115). The sound-absorbing member (210) may contain fiber particles. Due to the fiber particles contained in the sound-absorbing member (210), the sound-absorbing member (210) may have porous characteristics. To secure the fiber particles, the sound-absorbing member (210) may be secured with adhesive tape or may include a mesh enclosure (322) that encloses the fiber particles.

[0063] Referring to FIG. 3c, the rear duct (115) may include a plurality of walls (331) for securing a sound-absorbing member (210). For example, the plurality of walls (331) may be placed on a second surface (302) of the rear duct (115) to secure the sound-absorbing member (210). According to an embodiment, the plurality of walls (331) may be placed on a first surface (301) of the rear duct (115).

[0064] According to one embodiment, the height of each of the plurality of walls (331) may correspond to the distance between the first side (301) and the second side (302) of the rear duct (115). For example, the height of each of the plurality of walls (331) may correspond to the height (d3) of the sound-absorbing member (210).

[0065] According to one embodiment, the distance between the first wall (331-1) and the third wall (331-3) may correspond to the horizontal length (d1) of the sound-absorbing member (210). The distance between the second wall (331-2) and the fourth wall (331-4) may correspond to the horizontal length (d1) of the sound-absorbing member (210).

[0066] For example, the first wall (331-1) and the second wall (331-2) may be spaced apart by a specified distance to form the rear duct (115). For example, the third wall (331-3) and the fourth wall (331-4) may be spaced apart by a specified distance to form the rear duct (115). The specified distance may be smaller than the vertical length (d2) of the sound-absorbing member (210).

[0067] As illustrated in FIG. 3c, a plurality of walls (331) defining the rear duct (115) can guide the position of the sound-absorbing member (210). For example, the plurality of walls (331) can secure the sound-absorbing member (210) within the rear duct (115). Thus, when the sound-absorbing member (210) is positioned between the plurality of walls (331), the sound-absorbing member (210) may not include an adhesive member. However, it is not limited thereto. The sound-absorbing member (210) may further include an adhesive member for attachment to at least one of the first surface (301) and / or the second surface (302) of the rear duct (115).

[0068] According to one embodiment, the sound-absorbing member (210) may include a mesh enclosure (322) and a sound-absorbing material (321) wrapped in the mesh enclosure (322). However, it is not limited thereto. According to an embodiment, the sound-absorbing member (210) may correspond to the sound-absorbing member (210) shown in FIG. 3a.

[0069] FIG. 4a shows a change in sound pressure level according to a sound-absorbing member according to one embodiment.

[0070] FIG. 4b shows a change in frequency response according to a sound-absorbing member according to one embodiment.

[0071] Referring to FIG. 4a, the horizontal axis of graph (401), graph (402), and graph (403) represents frequency (unit: [Hz]). The vertical axis of graph (401), graph (402), and graph (403) represents the sound pressure level (SPL, unit: dB) emitted to the outside through the rear duct (115).

[0072] According to one embodiment, graph (401) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) does not include a sound-absorbing member (210). Graph (402) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) includes a sound-absorbing member (210) including a first sound-absorbing material (e.g., glass wool). Graph (403) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) includes a sound-absorbing member (210) including a second sound-absorbing material (e.g., stone wool).

[0073] Referring to graphs (401) to (403), when the ear-worn electronic device (100) includes a sound-absorbing member (210), the sound pressure level emitted externally in the frequency band of the acoustic signal output through the speaker (120) can be reduced.

[0074] Referring to graphs (402) and (403), when the ear-wearing electronic device (100) includes a sound-absorbing member (210) including a second sound-absorbing material, the measured external sound pressure level may be lower than the measured external sound pressure level when the ear-wearing electronic device (100) includes a sound-absorbing member (210) including a first sound-absorbing material.

[0075] In the above-described embodiment, the first sound-absorbing material and the second sound-absorbing material are exemplary and are not limited thereto. The sound-absorbing material included in the sound-absorbing member (210) may be various materials (or combinations thereof) composed of porous materials.

[0076] Referring to FIG. 4b, the horizontal axis of graph (411), graph (412), and graph (413) represents frequency (unit: [Hz]). The vertical axis of graph (411), graph (412), and graph (413) represents the sound pressure level (SPL, unit: dB) regarding the frequency response of the speaker (120).

[0077] According to one embodiment, graph (411) shows the sound pressure level for the frequency response according to frequency when the ear-worn electronic device (100) does not include a sound-absorbing member (210). Graph (412) shows the sound pressure level for the frequency response according to frequency when the ear-worn electronic device (100) includes a sound-absorbing member (210) including a first sound-absorbing material (e.g., glass wool). Graph (413) shows the sound pressure level for the frequency response according to frequency when the ear-worn electronic device (100) includes a sound-absorbing member (210) including a second sound-absorbing material (e.g., stone wool).

[0078] For example, the sound pressure level for the frequency response of the speaker (120) may indicate acoustic output in the corresponding frequency range. For example, if the graph showing the sound pressure level for the frequency response according to frequency is flat, it may mean that the sound is output uniformly.

[0079] Referring to graphs (411) to (413), when the ear-worn electronic device (100) includes a sound-absorbing member (210), the magnitude of the frequency response is increased in a specific frequency band (e.g., 500 Hz to 3000 Hz). For example, when the ear-worn electronic device (100) includes a sound-absorbing member (210), the flatness of the graph representing the sound pressure level of the frequency response according to frequency is increased.

[0080] Referring to graphs (412) and (413), the flatness of graph (403) may be greater than the flatness of graph (402). Accordingly, when the ear-wearing electronic device (100) includes a sound-absorbing member (210) including a second sound-absorbing material, a higher quality acoustic signal may be output than when the ear-wearing electronic device (100) includes a sound-absorbing member (210) including a first sound-absorbing material.

[0081] In the above-described embodiment, the first sound-absorbing material and the second sound-absorbing material are exemplary and are not limited thereto. The sound-absorbing material included in the sound-absorbing member (210) may be various materials (or combinations thereof) composed of porous materials.

[0082] FIG. 5 shows an exploded perspective view relating to a part of a housing including a rear duct according to one embodiment.

[0083] Referring to FIG. 5, the housing (110) may include a recess (501) formed within a part (530) of the housing (110), a sound-absorbing member (210), an adhesive tape (502), a panel (503), an acoustic mesh (504), an adhesive tape (505), a port (506), and / or a cover (507). For example, at least one of the recess (501), the sound-absorbing member (210), the adhesive tape (502), the panel (503), the acoustic mesh (504), the adhesive tape (505), the port (506), and / or the cover (507) may be omitted.

[0084] According to one embodiment, the housing (110) may include a recess (501) formed within a part (530) of the housing (110). The recess (501) may include a first surface (551), a second surface (552), and a third surface (553). For example, the second surface (552) may correspond to the second surface (302) of FIG. 3A and FIG. 3B. For example, the first surface (551), the second surface (552), and the third surface (553) of the recess (501) may function as part of the rear duct (115).

[0085] According to one embodiment, the housing (110) may include a panel (503) covering a portion (530) of the housing (110). The panel (503) may include a hole (512) facing the recess (501).

[0086] For example, the housing (110) may include an adhesive tape (502). The adhesive tape may attach a panel (503) to a part (530) of the housing (110). The adhesive tape may be placed between the part (530) of the housing (110) and the panel (503). The adhesive tape (502) may include a recess (511) corresponding to a recess (501) of the housing (110).

[0087] One side of the panel (503) facing in a direction opposite to (not shown) the direction (510) can function as part of the rear duct (115). For example, the first side (551), second side (552), third side (553) of the recess (501) and the said side of the panel (503) can function as part of the rear duct (115). The first side (551), second side (552), third side (553) of the recess (501) and the said side of the panel (503) can define part of the rear duct (115). A hole (512) included in the panel (503) may correspond to a hole that functions to allow the rear duct (115) to be exposed to the outside of the ear-worn electronic device (100).

[0088] For example, a sound-absorbing member (210) may be placed between the recess (501) and the panel (503). As the sound-absorbing member (210) is placed between the recess (501) and the panel, it may occupy a portion of the rear duct (115). For example, as the sound-absorbing member (210) is placed between the recess (501) and the panel, at least a portion of the rear duct (115) may be blocked. According to an embodiment, the adhesive tape (502) may not include the recess (501). If the adhesive tape (502) does not include the recess (501), the adhesive tape (502) may function for adhesion between the sound-absorbing member (210) and the panel (503). The adhesive tape (502) may also function as a part of the rear duct (115).

[0089] According to one embodiment, the housing (110) may include an acoustic mesh (504) disposed on the other side of the panel (503) facing the direction (510). The acoustic mesh (504) may be disposed to cover a hole (512) of the panel (503). Although not illustrated, the housing (110) may further include an adhesive tape for attaching the acoustic mesh (504) to the panel (503). For example, the acoustic mesh (504) may be disposed for sound insulation and / or vibration insulation of the hole (512). The hole (512) may correspond to a hole (513) and a hole (515). As the hole (512) corresponds to the hole (513) and the hole (515), the hole (512) can connect the exterior of the ear-worn electronic device (100) (or housing (110)) with the interior space of the ear-worn electronic device (100). Accordingly, an acoustic mesh (504) may be placed to reduce (or prevent) the inflow of foreign matter through the hole (512) (or hole (513), hole (515)). Since the acoustic mesh (504) covers the hole (512), it may also provide soundproofing.

[0090] According to one embodiment, the housing (110) may include a port (506). The housing (110) may include an adhesive tape (505) for attaching the port (506) and the acoustic mesh (504) to each other. The adhesive tape (505) may include a hole (513). The port (506) may provide a ventilation function. The port (506) may include a protrusion (514). The protrusion (514) may be inserted into a hole (515) of the cover (507).

[0091] According to one embodiment, the housing (110) may include a cover (507). For example, the cover (507) may define a part of the exterior of the housing (110). The cover (507) may include a hole (515).

[0092] Example (520) represents a view from inside the housing (110) according to the direction (510). The sound-absorbing member (210) may occupy a portion of the rear duct (115). The sound-absorbing member (210) may occupy a portion of the rear duct (115) to reduce leakage of acoustic signals. For example, the sound-absorbing member (210) may block at least a portion of the rear duct (115).

[0093] For example, the rear duct (115) may include a part of the rear duct (115) and another part of the rear duct (115). A part of the rear duct (115) may be defined by a recess (501) and a hole (512) in a panel (503). Another part of the rear duct (115) may be defined by an acoustic mesh (504), a port (506), and a hole (515) in a cover (507).

[0094] FIG. 6a illustrates an example of a rear duct disposed within the housing of an ear-worn electronic device according to one embodiment.

[0095] FIG. 6b illustrates a specific example of a rear duct according to one embodiment.

[0096] Referring to FIG. 6a, the housing (110) of the ear-worn electronic device (100) may include an acoustic duct (111) and a rear duct (115). For example, the rear duct (115) may be contained within a portion (610) of the housing (110). For example, the portion (610) of the housing (110) may be exposed to the outside when the ear-worn electronic device (100) is worn. For example, the length of the rear duct (115) may correspond to the length (611) shown in FIG. 6a. In FIG. 6a, the portion (610) of the housing (110) viewed vertically from the outside of the ear-worn electronic device (100) to the rear duct (115) may be shown in FIG. 6b.

[0097] Referring to FIG. 6b, the panel (503) can cover the recess (501). As the panel (503) covers the recess (501), a portion of the rear duct (115) can be defined. A portion (620) of the recess (501) can be exposed through the hole (512) of the panel (503).

[0098] In the embodiments described above, an example is shown in which the size of the hole (512) of the panel (503) is smaller than the size of the recess (501), but in this embodiment, an example is shown in which the hole (512) of the panel (503) covers at least a portion of the recess (501). Unlike the embodiments described above, in that a portion (620) of the recess (501) is exposed through the hole (512) of the panel (503), the portion (620) of the recess (501) can function as a hole of the rear duct (115).

[0099] For example, point (612) may be included in a part (620) of the recess (501) exposed through the hole (512). Point (621) may be a point for defining the length of the rear duct (115). The length (611) of the rear duct (115) may be defined as the distance from the starting point (612) of the recess (501) to point (621).

[0100] FIG. 7a illustrates an example of a rear duct disposed within the housing of an ear-worn electronic device according to one embodiment.

[0101] FIG. 7b illustrates a specific example of a rear duct according to one embodiment.

[0102] Referring to FIG. 7a, the housing (110) of the ear-worn electronic device (100) may include an acoustic duct (111) and a rear duct (115). For example, the rear duct (115) may be contained within a portion (710) of the housing (110). For example, the portion (710) of the housing (110) may be exposed to the outside when the ear-worn electronic device (100) is worn. For example, the length of the rear duct (115) may correspond to the length (711) shown in FIG. 7a. In FIG. 7a, the portion (710) of the housing (110) viewed vertically from the outside of the ear-worn electronic device (100) to the rear duct (115) may be shown in FIG. 7b.

[0103] Referring to FIG. 7b, the panel (503) can cover the recess (501). As the panel (503) covers the recess (501), a portion of the rear duct (115) can be defined. A portion (720) of the recess (501) can be exposed through the hole (512) of the panel (503).

[0104] In the embodiments described above, an example is shown in which the size of the hole (512) of the panel (503) is smaller than the size of the recess (501), but in this embodiment, an example is shown in which the hole (512) of the panel (503) covers at least a portion of the recess (501). Unlike the embodiments described above, in that a portion (720) of the recess (501) is exposed through the hole (512) of the panel (503), the portion (720) of the recess (501) can function as a hole of the rear duct (115).

[0105] For example, point (712) may be included in a part (720) of the recess (501) exposed through the hole (512). Point (721) may be a point for defining the length of the rear duct (115). The length (711) of the rear duct (115) may be defined as the distance from the starting point (712) of the recess (501) to point (721).

[0106] Referring again to FIGS. 6a, FIGS. 6b, FIGS. 7a, and FIGS. 7b, the length (611) may be longer than the length (711). For example, the length (611) may be 4.4 [mm]. The length (711) may be 3.0 [mm].

[0107] According to an embodiment, when the length of the rear duct (115) of the ear-worn electronic device (100) is reduced, the magnitude of the acoustic signal emitted to the outside through the rear duct (115) may increase. Even when the length of the rear duct (115) is reduced, if a sound-absorbing member (210) is placed within the rear duct (115), the magnitude of the acoustic signal emitted to the outside through the rear duct (115) may decrease. Graphs according to the above-described embodiment will be described later in FIGS. 8a and FIGS. 8b.

[0108] FIG. 8a shows the change in sound pressure level according to the length of the rear duct and the sound-absorbing member according to one embodiment.

[0109] FIG. 8b shows the change in frequency response according to the length of the rear duct and the sound-absorbing member according to one embodiment.

[0110] Referring to FIG. 8a, the horizontal axis of graph (801), graph (802), and graph (803) represents frequency (unit: [Hz]). The vertical axis of graph (801), graph (802), and graph (803) represents the sound pressure level (SPL, unit: dB) emitted to the outside through the rear duct (115).

[0111] According to one embodiment, graph (801) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) does not include a sound-absorbing member (210) and the length of the rear duct (115) is formed to a first length. Graph (802) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) does not include a sound-absorbing member (210) and the length of the rear duct (115) is formed to a second length shorter than the first length. Graph (803) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) includes a sound-absorbing member (210) and the length of the rear duct (115) is formed to a second length shorter than the first length.

[0112] For example, graph (801) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) having the structure according to FIG. 6a and 6b does not include a sound-absorbing member (210).

[0113] For example, graph (802) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) having the structure according to FIG. 7a and FIG. 7b does not include a sound-absorbing member (210).

[0114] For example, graph (803) shows the sound pressure level emitted outward according to frequency when the ear-worn electronic device (100) having the structure according to FIG. 7a and FIG. 7b includes a sound-absorbing member (210).

[0115] Referring to graphs (801) and (802), when the length of the rear duct (115) of the ear-worn electronic device (100) is shortened, the sound pressure level emitted externally in the frequency band of the acoustic signal output through the speaker (120) may increase.

[0116] However, referring to graphs (802) and (803), even if the length of the rear duct (115) of the ear-wearing electronic device (100) is formed to a second length shorter than the first length, when the sound-absorbing member (210) is placed within the rear duct (115), the sound pressure level emitted to the outside in the frequency band of the acoustic signal output through the speaker (120) can be reduced.

[0117] Referring to FIG. 8b, the horizontal axis of graphs (811), (812), and (813) represents frequency (unit: [Hz]). The vertical axis of graphs (811), (812), and (813) represents the sound pressure level (SPL, unit: dB) regarding the frequency response of the speaker (120).

[0118] According to one embodiment, graph (811) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) does not include a sound-absorbing member (210) and the length of the rear duct (115) is formed to a first length. Graph (812) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) does not include a sound-absorbing member (210) and the length of the rear duct (115) is formed to a second length shorter than the first length. Graph (813) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) includes a sound-absorbing member (210) and the length of the rear duct (115) is formed to a second length shorter than the first length.

[0119] For example, graph (811) shows the sound pressure level emitted outward according to frequency when the ear-worn electronic device (100) having the structure according to FIG. 6a and 6b does not include a sound-absorbing member (210).

[0120] For example, graph (812) shows the sound pressure level emitted externally according to frequency when the ear-worn electronic device (100) having the structure according to FIG. 7a and FIG. 7b does not include a sound-absorbing member (210).

[0121] For example, graph (813) shows the sound pressure level emitted outward according to frequency when the ear-worn electronic device (100) having the structure according to FIG. 7a and FIG. 7b includes a sound-absorbing member (210).

[0122] For example, the sound pressure level for the frequency response of the speaker (120) may indicate acoustic output in the corresponding frequency range. For example, if the graph showing the sound pressure level for the frequency response according to frequency is flat, it may mean that the sound is output uniformly.

[0123] Referring to graphs (811) through (813), the flatness may change depending on the length of the rear duct (115) of the ear-worn electronic device (100) and / or whether the sound-absorbing member (210) is included. For example, graph (813) may have the greatest flatness. Thus, if the ear-worn electronic device (100) includes the sound-absorbing member (210) and the length of the rear duct (115) is formed to a second length shorter than the first length, the highest quality acoustic signal may be provided.

[0124] FIG. 9 is a block diagram of an exemplary electronic device according to one embodiment.

[0125] Referring to FIG. 9, an electronic device (901) according to one embodiment (e.g., ear-worn electronic device (100) of FIG. 1 to 8b) may include a processor (920), memory (930), wireless communication circuit (992), sensor (976), speaker (955) (e.g., speaker (120) of FIG. 1 to 8b), and battery (989). In one embodiment, the processor (920) may include processing circuitry or control circuitry, such as a micro controller unit (MCU), a central processing unit (CPU), a sensor processor, a sensor hub, an application processor (AP), and / or a communication processor (CP).

[0126] In one embodiment, the processor (920) can control the operation of the electronic device (901). In one embodiment, the operation controlled by the processor (920) may be performed at least partially by the processor of an external device (electronic device (902)) paired with the electronic device (901).

[0127] In one embodiment, the speaker (955) can output a sound signal (or audio signal) received from an external electronic device (902) (e.g., a user's terminal).

[0128] In one embodiment, the battery (989) can supply power to a component of the electronic device (901). The battery (989) may include a rechargeable secondary battery or a fuel cell.

[0129] In one embodiment, the wireless communication circuit (992) can establish a wireless communication channel with the electronic device (902) and perform communication using the established communication channel. In one embodiment, the wireless communication circuit (992) can transmit various data (e.g., audio data) through the antenna (997) to an external electronic device (902) that is connected (e.g., paired) via a designated network (e.g., a local area network) or receive from the external electronic device (902).

[0130] In one embodiment, the antenna (997) may transmit a signal (e.g., data or power) to an external electronic device (902) or receive a signal from an external electronic device (902). As a non-limiting example, the antenna (997) may include one or more antennas comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB).

[0131] In one embodiment, the memory (930) may store various data used by at least one component of the electronic device (901) (e.g., processor (920) or sensor module (976)). The data may include, for example, input data or output data for software and related commands. In one embodiment, the memory (930) may include volatile memory and / or non-volatile memory.

[0132] In one embodiment, the memory (930) may store one or more programs (or applications) and instructions executed by the processor (920) and / or the processor of the external electronic device (902). In one embodiment, the memory (930) may temporarily and / or temporarily store data input / output from the electronic device (901) and / or the external electronic device (902).

[0133] According to one embodiment, an ear-wearable electronic device may include a housing defining the exterior of the ear-wearable electronic device, a first microphone disposed within the housing so as to be exposed to the outside when the ear-wearable electronic device is worn, a second microphone disposed within the housing so as to be directed toward the inside of the user's ear when the ear-wearable electronic device is worn, and a speaker. The housing may include a first internal space located in front of the speaker within the housing to function as an acoustic duct. The housing may include a second internal space located behind the speaker to function as a resonance space for an acoustic signal output from the speaker. The housing may include a rear duct extending from the second internal space to an external space of the ear-wearable electronic device. The housing may include a sound-absorbing member disposed within the rear duct.

[0134] For example, the sound-absorbing member may include a first layer comprising a sound-absorbing material, a second layer comprising an adhesive member above the first layer, and a third layer comprising an adhesive member below the first layer.

[0135] For example, the sound-absorbing member may include a mesh enclosure and a sound-absorbing material enclosed by the mesh enclosure.

[0136] For example, the sound-absorbing member may include at least one of glass wool or stone wool.

[0137] For example, the housing may include a recess formed within a part of the housing, a hole facing the recess, and a panel covering the part of the housing. The rear duct may include a part of the rear duct defined by the recess and the hole.

[0138] For example, the housing may include an adhesive tape disposed between the part of the housing and the panel and attaching the panel to the part of the housing. The adhesive tape may include another recess corresponding to the recess of the housing.

[0139] For example, the housing may include an acoustic mesh disposed on the other side of the panel opposite to the side of the panel facing the part of the housing so as to cover the hole of the panel. The housing may include a cover that defines a part of the exterior of the housing and includes a hole facing the acoustic mesh. The housing may include a port disposed between the acoustic mesh and the hole of the cover and including a protrusion inserted into the hole of the cover.

[0140] For example, the rear duct may include other parts of the rear duct defined by the acoustic mesh, the port, and the hole of the cover.

[0141] For example, the first microphone may be positioned adjacent to the recess formed within the part of the housing that defines a part of the rear duct.

[0142] For example, the second microphone may be positioned toward the acoustic duct within the first internal space.

[0143] For example, the first microphone may be configured to acquire the first external acoustic signal. The second microphone may be configured to acquire the second acoustic signal introduced into the first internal space through the acoustic duct.

[0144] For example, the ear-worn electronic device may include a processor. The processor may be configured to control the acoustic signal output through the speaker based on the first acoustic signal obtained through the first microphone and the second acoustic signal obtained through the second microphone.

[0145] For example, the sound-absorbing member may occupy a portion of the rear duct to reduce the leakage of acoustic signals.

[0146] For example, the housing may further include a vent hole connecting the first internal space and the second internal space.

[0147] For example, the vent hole may be positioned to equalize the pressure of the first internal space and the second internal space.

[0148] For example, the rear duct may be formed to reduce the magnitude of an acoustic signal having a band exceeding a reference frequency, which is emitted to the outside through the rear duct among the acoustic signals output through the speaker.

[0149] For example, the ear-worn electronic device may further include an ear tip coupled to the acoustic duct.

[0150] For example, the speaker may include a full-range speaker for outputting a full-range acoustic signal. The speaker may include a tweeter speaker for outputting a high-frequency acoustic signal.

[0151] For example, the full-band speaker may be spaced apart from the acoustic duct by a first distance. The tweeter speaker may be spaced apart from the acoustic duct by a second distance shorter than the first distance.

[0152] For example, the speaker may include a diaphragm. The first internal space and the second internal space may be separated by the diaphragm.

[0153] The electronic device according to the embodiments disclosed in this document may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiments of this document is not limited to the aforementioned devices.

[0154] The 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 said embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In this document, each of phrases such as "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 "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from another component and do not limit the components in any other aspect (e.g., importance or order). Where any component (e.g., the first) is referred to as "coupled" or "connected" to another component (e.g., the second), with or without the terms "functionally" or "communicationally," it means that said component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0155] In one embodiment of this document, the term “module” used may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0156] One embodiment of the present document may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored in the storage medium and execute it. This enables the machine to be operated to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0157] According to one embodiment, the method according to the embodiments disclosed herein may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., CD-ROM (compact disc read-only memory)), or distributed online (e.g., download or upload) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0158] According to one embodiment, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to one embodiment, one or more of the components or operations among the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to one embodiment, operations performed by the module, program, or other components may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an ear-wearable electronic device, A housing defining the exterior of the above-mentioned ear-worn electronic device; A first microphone disposed within the housing so as to be exposed to the outside when the above-mentioned ear-worn electronic device is worn; A second microphone disposed within the housing so as to face the inside of the user's ear when the above-described ear-worn electronic device is worn; and Includes speakers. The above housing is, A first internal space located in front of the speaker within the housing to function as an acoustic duct, A second internal space located behind the speaker to function as a resonance space for an acoustic signal output from the speaker, A rear duct extending from the second internal space to the external space of the ear-wearing electronic device, and including a sound absorbing member disposed within the rear duct above, Ear-worn electronic device.

2. In claim 1, the sound-absorbing member is, A first layer comprising a sound-absorbing material; A second layer comprising an adhesive member on the first layer above; and A third layer comprising an adhesive member, located below the first layer, Ear-worn electronic device.

3. In claim 1, the sound-absorbing member is, A mesh enclosure comprising a sound-absorbing material enclosed by said mesh enclosure, Ear-worn electronic device.

4. In claim 1, the sound-absorbing member is, Comprising at least one of glass wool or stone wool, Ear-worn electronic device.

5. In claim 1, the housing is, A recess formed within a part of the above housing; It includes a hole facing the above recess and a panel covering the above part of the housing, The above rear duct is, A portion of the rear duct defined by the recess and the hole, Ear-worn electronic device.

6. In claim 5, the housing is, It includes an adhesive tape disposed between the part of the housing and the panel, and attaching the panel to the part of the housing. The above adhesive tape is, including another recess corresponding to the recess of the above housing, Ear-worn electronic device.

7. In claim 6, the housing is, An acoustic mesh disposed on the other side of the panel opposite to the side of the panel facing the part of the housing, so as to cover the hole of the panel; A cover including a hole facing the acoustic mesh and defining a part of the exterior of the housing; A port comprising a protrusion disposed between the acoustic mesh and the hole of the cover and inserted into the hole of the cover. Ear-worn electronic device.

8. In claim 7, the rear duct is, including other parts of the rear duct defined by the acoustic mesh, the port, and the hole of the cover, Ear-worn electronic device.

9. In claim 5, the first microphone is, A portion of the rear duct defined above, disposed adjacent to the recess formed within the portion of the housing, the portion of the housing defined above. Ear-worn electronic device.

10. In claim 1, the second microphone is, A structured facing the acoustic duct within the first internal space, Ear-worn electronic device.

11. In claim 10, the first microphone is, It is configured to acquire the above-mentioned external first acoustic signal, and The above second microphone is, A configuration configured to acquire a second acoustic signal flowing into the first internal space through the acoustic duct. Ear-worn electronic device.

12. In claim 11, the ear-worn electronic device is, Includes a processor, The above processor is, A method configured to control the acoustic signal output through the speaker based on the first acoustic signal obtained through the first microphone and the second acoustic signal obtained through the second microphone. Ear-worn electronic device.

13. In claim 1, the sound-absorbing member is, Occupying a portion of the rear duct to reduce acoustic signal leakage, Ear-worn electronic device.

14. In claim 1, the housing is, A vent hole further comprising connecting the first internal space and the second internal space, Ear-worn electronic device.

15. In claim 14, the vent hole is, Arranged for pressure equilibrium of the first internal space and the second internal space, Ear-worn electronic device.

Images