Electronic device including microphone

Abstract

The present invention relates to an electronic device such as a wearable display including a microphone so that a mounting area can be minimized while audio sensing recognition performance is increased, and can provide, as a glasses-structured electronic device comprising a first temple (120L), a first tip (130L) connected to the first temple, a second temple (120R), a second tip (130R) connected to the second temple, and a rim (110), an electronic device comprising: a first air conduction microphone (ACM) (200L) provided in the first temple; and a bone conduction microphone (BCM) (400) provided in one from among the first tip and the second tip, wherein the BCM is provided in the one from among the first tip and the second tip so as to be adjacent to a temporal bone of a user when the user wears the electronic device.

Description

Electronic device equipped with a microphone

[0001] The present disclosure relates to an electronic device having a microphone for receiving ambient sound and / or user voice.

[0002] Virtual Reality (VR) refers to a specific environment or situation, or the technology itself, created using artificial technology such as computers that is similar to reality but is not actually real.

[0003] Augmented Reality (AR) refers to a technology that superimposes virtual objects or information onto a real environment to make them appear as if they exist in the original environment.

[0004] Mixed Reality (MR) or Hybrid Reality refers to the creation of new environments or new information by combining the virtual world and the real world. In particular, it is called Mixed Reality when referring to the ability to interact in real time between things existing in the real world and the virtual world.

[0005] At this time, the created virtual environment or situation stimulates the user's five senses and enables spatial and temporal experiences similar to reality, thereby allowing the user to freely cross the boundary between reality and imagination. Furthermore, the user can not only simply immerse themselves in this environment but also interact with the elements implemented within it, such as by using actual devices to perform operations or issue commands.

[0006] Recently, active research is being conducted on the equipment (gear) used in these technology fields.

[0007] There are two main types of wearable displays that project images into thin air: helmet-type structures worn on the head and glasses-type structures. Helmet-type structures are designed to be worn across the entire head because the volume of the optical lens system increases to expand the field of view (FOV) and create large images; this is the origin of the term HMD (Head Mounted Display). Consequently, helmet-type structures are utilized in specialized fields involving limited space and minimal movement, such as military training (cyber flight control) and cyber gaming.

[0008] On the other hand, the eyeglass-type structure is designed to rest on the nose and ears like eyeglasses and is configured in a compact size. It is lightweight and small, making it easy to use even in mobile environments.

[0009] A microphone can be mounted on a wearable display to receive audio input, such as the user's voice and / or ambient sound. However, audio sensing performance and the mounting area of ​​the microphone may vary depending on its structure and mounting location. Therefore, there is a need to continue research on the structure and mounting location of microphones that can be mounted on wearable displays to improve audio sensing performance and minimize the microphone's mounting area.

[0010] The present disclosure is proposed to solve such problems and aims to provide an electronic device, such as a wearable display, equipped with a microphone that can improve audio sensing recognition performance and minimize mounting area.

[0011] To achieve the above objective, the present disclosure may provide an electronic device having an eyeglass-like structure comprising a first temple (120L), a first tip (130L) connected to the first temple, a second temple (120R), a second tip (130R) connected to the second temple; and a rim (110), wherein the electronic device comprises a first ACM (Air Conduction Microphone) (200L) provided on the first temple and a BCM (Bone Conduction Microphone) (400) provided on one of the first tip and the second tip, wherein the BCM is provided on one of the first tip and the second tip so as to be adjacent to the user's temporal bone when the user wears the electronic device.

[0012] The above electronic device may further include a second ACM (200R) provided in the second temple.

[0013] The first ACM has two receiving parts (215, 225), and the electronic device may further have a tube cap (300) for forming a receiving tube (D2, CD) for one of the two receiving parts (225).

[0014] The first temple includes a first sound receiving hole (H1) and a second sound receiving hole (H2), and the directional direction of the first sound receiving hole and the directional direction of the second sound receiving hole may be 80 degrees or more and less than 135 degrees.

[0015] One end (135) of the sound receiving pipe of the above pipe cap may face one of the two sound receiving parts (225), and the other end (325) of the sound receiving pipe of the above pipe cap may face the second sound receiving hole (H2).

[0016] A sealing projection is formed around the other end (325) of the sound receiving tube of the above tube cap, and a groove (121-1) for the sealing projection to be seated can be formed on the inner surface of the first temple around the second sound receiving hole (H2).

[0017] The above BCM is positioned adjacent to an inner cover (127) constituting one tip (130R), and the electronic device further includes a holding cap (500) for holding the BCM, and the BCM can be held within a recess (501) of the holding cap.

[0018] A plurality of holding protrusions (503) for holding the BCM may be formed on the inner side of the concave portion of the holding cap.

[0019] When the outer cover (121) constituting the above-mentioned tip (130R) is combined with the inner cover (127), the outer cover can compress the holding cap and the BCM in a direction toward the inner cover.

[0020] Additionally, to achieve the above objective, the present disclosure may provide an electronic device having an eyeglass-like structure comprising a first temple (120L), a first tip (130L) connected to the first temple, a second temple (120R), a second tip (130R) connected to the second temple, and a rim (110), wherein the electronic device comprises an Air Conduction Microphone (ACM) (200C) provided on a bridge (111) of the rim (110), and a Bone Conduction Microphone (BCM) (400) provided on one of the first tip and the second tip, wherein the BCM is provided on one of the first tip and the second tip so as to be adjacent to the user's temporal bone when the user wears the electronic device.

[0021] The effects of an electronic device equipped with a microphone according to the present disclosure are described as follows.

[0022] According to at least one of the various aspects of the present disclosure, there is an advantage that a microphone can be provided in an electronic device, such as a wearable display, to enhance audio sensing recognition performance while minimizing the mounting area.

[0023] FIG. 1 illustrates the external appearance of an electronic device according to one aspect of the present disclosure.

[0024] Figure 2 is an example of the location of a BCM embedded in the tip of the electronic device of Figure 1.

[0025] Figure 3 is an example of two sound receiving holes formed in the temple of the electronic device of Figure 1.

[0026] FIG. 4 illustrates an example regarding the positions of the first and second sound holes of FIG. 3.

[0027] FIG. 5 illustrates a sound reception pattern of an electronic device according to one aspect of the present disclosure.

[0028] Figure 6 is a cross-sectional view and exploded view of the temple portion with the ACM embedded in Figure 1.

[0029] Figure 7 is a cross-sectional view of Figure 6 and a perspective view of the ACM.

[0030] Figure 8 is a cross-sectional view of Figure 6 and a perspective view of the pipe cap.

[0031] Figure 9 is an exploded view of the first filter of Figure 6.

[0032] FIG. 10 illustrates a structure in which the pipe cap of FIG. 6 is in close contact with the outer cover.

[0033] FIG. 11 illustrates the BCM of FIG. 1 and a holding cap that holds it.

[0034] FIG. 12 illustrates a structure in which the BCM and holding cap of FIG. 11 are embedded within the tip.

[0035] FIG. 13 is a cross-sectional view and exploded view of the tip portion with the BCM embedded in FIG. 1.

[0036] FIG. 14 is a cross-sectional view of a tip regarding an example of a location where a BCM is placed within the tip of FIG. 1.

[0037] FIG. 15 illustrates experimental data regarding the effect of a holding cap holding a BCM in an electronic device according to FIG. 11 to 13.

[0038] FIG. 16 illustrates the external appearance of an electronic device according to one aspect of the present disclosure.

[0039] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols will be assigned the same reference number, and redundant descriptions thereof will be omitted. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification and do not inherently possess distinct meanings or roles. Furthermore, in describing embodiments disclosed in this specification, if it is determined that a detailed description of related prior art could obscure the essence of the embodiments disclosed in this specification, such detailed description will be omitted. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification; the technical concept disclosed in this specification is not limited by the attached drawings, and it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the present invention.

[0040] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0041] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0042] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0043] In this application, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0044] Hereinafter, with reference to FIG. 1, an electronic device such as a wearable display according to one aspect of the present disclosure will be described. FIG. 1 illustrates the external appearance of an electronic device according to one aspect of the present disclosure. FIG. 1 describes a wearable display with a glasses-type structure as an example, but the contents of the present disclosure may also be applied to a wearable display with a helmet-type structure.

[0045] As illustrated in (1-1) of FIG. 1, the electronic device (100) may include a rim (110), a temple (120), and a tip (130).

[0046] The electronic device (100) may be equipped with two types of microphones, namely an ACM (Air Conduction Microphone) and a BCM (Bone Conduction Microphone). The ACM is a microphone that senses sound through air vibrations, and the BCM is a microphone that senses sound through the vibration of the user's bones.

[0047] Since the ACM and BCM may have different sound reception frequency characteristics and different sound propagation media, they are equipped together in an electronic device (100) so that the desired sound can be accurately received in various environments.

[0048] The electronic device (100) may be equipped with at least one ACM and at least one BCM. In FIG. 1, two ACMs (200L, 200R) and one BCM (400) are provided together in the electronic device (100).

[0049] As shown in (1-2) and (1-3) of FIG. 1, the first temple (120L) may be equipped with a first ACM (200L), and the second temple (120R) may be equipped with a second ACM (200R).

[0050] The first ACM (200L) may be provided on one end of the first temple (120L) facing the rim (110). That is, the first ACM (200L) may be provided on the first temple (120L) so as to be close to the rim (110).

[0051] The second ACM (200R) may be provided on one end of the second temple (120R) facing the rim (110). That is, the second ACM (200R) may be provided on the second temple (120R) so as to be close to the rim (110).

[0052] Although not shown, only one of the first ACM (200L) and the second ACM (200R) may be provided in the electronic device (100).

[0053] A BCM (400) may be provided in the first tip (130L). A BCM (400) may be provided in the portion of the first tip (130L) that comes into contact with the user's left temporal bone when the user wears the electronic device (100). Although not illustrated, a BCM (400) may also be provided in the portion of the second tip (130R) that comes into contact with the user's right temporal bone. Additionally, although not illustrated, two BCMs may be provided in the corresponding positions of the first tip (130L) and the third tip (130R), respectively.

[0054] In FIG. 1, the positions of the ACM (200L, 200R) and BCM (400) mounted on the electronic device (100) are shown. The ACM (200L, 200R) is mounted inside the corresponding temple, and the BCM (400) can be mounted inside the corresponding tip.

[0055] Hereinafter, with reference to FIG. 2, the location of the BCM embedded in the tip for receiving the user's voice will be explained in more detail. FIG. 2 is an example of the location of the BCM embedded in the tip of the electronic device of FIG. 1.

[0056] As illustrated in FIG. 2, a BCM (400) may be provided in the area of ​​the second tip (130R) that comes into close contact with the user's temporal bone (A) when the user wears the electronic device (100). Accordingly, when the user speaks, the user's voice transmitted through the user's skull can be sensed by the BCM (400) as a vibration of the temporal bone.

[0057] Hereinafter, with reference to FIG. 3, two receiving holes formed in the temple for each ACM for receiving ambient sound and / or the user's voice through the air will be described. FIG. 3 is an example of two receiving holes formed in the temple of the electronic device of FIG. 1.

[0058] As illustrated in FIG. 3, two receiving holes (H1, H2) may be formed in the first temple (120L) of the electronic device for the first ACM (200L) to receive ambient sound and / or the user's voice through the air. Of course, two receiving holes (H1, H2) may also be formed in the second temple (120R) for the second ACM (200R).

[0059] The first sound receiving hole (H1) is intended to primarily receive ambient sound (S1) and can be formed on the side furthest from the user among the various sides of the built-in first temple of the first ACM (200L) when the user wears the electronic device (100).

[0060] The second sound receiving hole (H2) is intended to primarily receive the user's voice (S2) and can be formed on the side facing the user's mouth (e.g., the downward side) among the various sides of the first temple portion built into the first ACM (200L) when the user wears the electronic device (100).

[0061] Hereinafter, with reference to FIGS. 4 and FIGS. 5, the locations of the first sound receiving hole (H1) and the second sound receiving hole (H2) will be described in more detail. FIGS. 4 illustrates an example regarding the locations of the first sound receiving hole and the second sound receiving hole of FIGS. 3. FIGS. 5 illustrates a sound receiving pattern of an electronic device according to one aspect of the present disclosure.

[0062] As illustrated in (4-1) of FIG. 4, the first sound hole (H1) may be formed on the first side (120-1) located furthest from the user among the various sides of the portion of the first temple (120L) embedded in the first ACM (200L) when the user wears the electronic device (100). And, the second sound hole (H2) may be formed on the second side (120-2) located closest to the user among the various sides of the portion of the first temple (200L) embedded in the first ACM (200L) when the user wears the electronic device (100).

[0063] That is, the direction in which the first sound receiving hole (H1) faces outward and the direction in which the second sound receiving hole (H2) faces outward can be horizontal to each other. In this case, due to interference from the user's face or head with respect to the second sound receiving hole (H2), sound may not be properly received through the second sound receiving hole (H2).

[0064] Meanwhile, as illustrated in (4-2) of FIG. 4, the first sound hole (H1) may be formed on the first side (120-1) located furthest from the user among the various sides of the first temple (120L) embedded in the first ACM (200L) when the user wears the electronic device (100). And, the second sound hole (H2) may be formed on the third side (120-3) (e.g., downward side) directed toward the user's mouth among the various sides of the first temple (200L) embedded in the first ACM (200L) when the user wears the electronic device (100).

[0065] That is, the direction in which the first sound receiving hole (H1) faces outward and the direction in which the second sound receiving hole (H2) faces outward can be perpendicular (90 degrees) to each other. In this case, interference from the user's face or head to the second sound receiving hole (H2) is minimized, so that the user's voice can be properly received through the second sound receiving hole (H2).

[0066] The direction in which the first sound receiving hole (H1) faces outward and the direction in which the second sound receiving hole (H2) faces outward do not necessarily have to be perpendicular. The direction in which the first sound receiving hole (H1) faces outward and the direction in which the second sound receiving hole (H2) faces outward can be modified according to the cross-sectional shape of the temple. For example, the angle between the direction in which the first sound receiving hole (H1) faces outward and the direction in which the second sound receiving hole (H2) faces outward can be 80 degrees or more and 135 degrees or less. The direction in which the second sound receiving hole (H2) faces outward can be adjusted to face the user's mouth at a level where interference with the user's face or head is reduced to a certain level or less.

[0067] FIG. 5 illustrates the sound reception pattern of an electronic device when the first sound receiving hole (H1) and the second sound receiving hole (H2) are formed as in (4-2) of FIG. 4.

[0068] When the first sound receiving hole (H1) and the second sound receiving hole (H2) are formed as in (4-2) of FIG. 4, it can be seen that the first sound receiving pattern (P1) for receiving ambient sound and the second sound receiving pattern (P2) for receiving the user's voice can be formed well.

[0069] Hereinafter, with reference to FIG. 6, a structure in which an ACM (200L, 200R) is embedded in a temple (120L, 120R) will be described. FIG. 6 is a cross-sectional view and an exploded view of the temple portion in FIG. 1 in which the ACM is embedded. FIG. 6 describes the first ACM (200L) and the first temple (120L), but it goes without saying that such a structure can be applied to the second ACM (200R) and the second temple (120R).

[0070] A first sound receiving hole (H1) may be formed in the outer cover (121) of the first temple (120L). A first sound receiving part (215 in FIG. 7) provided on the first surface (210 in FIG. 7) of the first ACM (200L) may be connected to the first sound receiving hole (H1) through a first filter (122). Accordingly, the first sound receiving part (215 in FIG. 7) of the first ACM (200L) can primarily sense ambient sound through the first sound receiving hole (H1). The first filter (122) blocks a strong airflow that may enter the first sound receiving hole (H1), thereby enabling the first sound receiving part (215 in FIG. 7) to sense ambient sound more clearly, for example.

[0071] The first filter (122) can be attached to the first surface (210 in FIG. 7) around the first receiving part (215 in FIG. 7) of the first ACM (200L) by, for example, adhesive tape (123) (or adhesive).

[0072] A second surface (220 in FIG. 7) facing the first surface (210 in FIG. 7) of the first ACM (200L) may be provided with a second receiving part (225 in FIG. 7).

[0073] The second surface (220 in FIG. 7) of the first ACM (200L) can be attached to, for example, a flexible PCB (Printed Circuit Board) (124). At this time, a substrate hole (not shown) may be formed in the PCB (124) to correspond to the second receiving portion (225 in FIG. 7) of the first ACM (200L).

[0074] A conduit cap (300) may be embedded between the PCB (124) and the inner cover (127). The detailed structure and function of the conduit cap (300) will be explained later.

[0075] The second receiving part (225 in FIG. 7) of the first ACM (200L) can primarily sense user voice through the second receiving hole (H2).

[0076] A second filter (125) may be provided between the PCT (124) and the conduit cap (300). The second filter (125) blocks a strong airflow that may flow into the second sound receiving hole (H2), thereby enabling the second sound receiving part (225 in FIG. 7) to sense, for example, the user's voice more clearly.

[0077] A phase difference may occur between the sound input to the first and second receiving sections, so that ambient sound is mainly received in the first receiving section and user voice is mainly received in the second receiving section.

[0078] The first filter (122) and the second filter (125) may also serve as waterproofing to prevent water penetration and / or dustproofing to prevent dust penetration.

[0079] Hereinafter, with further reference to FIG. 7, we will examine in more detail the first ACM (200L) that can be provided within the first temple (120L). FIG. 7 is a cross-sectional view of FIG. 6 and a perspective view of the ACM.

[0080] As illustrated in FIG. 7, a first sound receiving part (215) may be provided on the first surface (210) of the first ACM (200L). Additionally, a second sound receiving part (225) may be provided on the second surface (220) facing the first surface (210) of the first ACM (200L). That is, the first ACM (200L) may be intended to simultaneously receive sounds arriving from opposite directions.

[0081] The first receiving section (215) of the first ACM (200L) can be connected to the first receiving hole (H1) through the first filter (122). Thus, a first conduit (D1) can be formed that communicates from the outside to the first receiving section (215) through the first receiving hole (H1). The first receiving section (215) is enabled to primarily sense ambient sound, for example, through the first conduit (D1).

[0082] The second receiving part (225) of the first ACM (200L) can primarily sense the user's voice through the conduit cap (125). This will be explained with further reference to FIG. 8. FIG. 8 is a cross-sectional view of FIG. 6 and a perspective view of the conduit cap.

[0083] As illustrated in FIG. 8, a first cap hole (315) may be provided on the first surface (310) of the conduit cap (300) facing the second surface (210) of the first ACM (200L). The first cap hole (315) may correspond to one end of the internal conduit (CD) of the conduit cap (300).

[0084] The first cap hole (315) of the conduit cap (300) can be connected to the second receiving part (225) of the first ACM (200L) through the second filter (125) and the substrate hole (not shown) of the PCB (124).

[0085] The internal conduit (CD) may be bent at an angle of, for example, 90 degrees (or an angle of 80 degrees or more and 135 degrees or less) within the conduit cap (300).

[0086] A second cap hole (325) may be provided on a second surface (320) adjacent to the first surface (310) of the pipe cap (300). The second cap hole (325) may correspond to the other end of the internal pipe (CD) of the pipe cap (300).

[0087] The second cap hole (325) of the conduit cap (300) can be connected to the second receiving hole (H2) of the first temple (120L). Thus, a second conduit (D2) can be formed that is connected from the outside to the second receiving part (225) through the second receiving hole (H2). The second receiving part (225) is configured to primarily sense, for example, user voice through the second conduit (D2).

[0088] As the outer cover (121) and inner cover (127) of the first temple (120L) are joined together, the first cap hole (315) of the tube cap (300) is brought into close contact with the second receiving part (225) of the first ACM (200L) (or the substrate hole (not shown) of the PCB (124)), and the second cap hole (325) of the tube cap (300) can be brought into close contact with the second receiving hole (H2) of the first temple (120L).

[0089] The pipe cap (300) may be made of rubber material to be advantageous for airtightness.

[0090] Hereinafter, with reference to FIG. 9, we will examine the structure of the first filter (122) further. FIG. 9 is an exploded view of the first filter of FIG. 6. Of course, the structure of the first filter (122) can also be applied to the second filter (125).

[0091] The first filter (122) may have double-sided tapes (122-1, 122-3) placed on each side of the filter fabric (122-2). A tape hole (122-15, 122-35) for the passage of sound may be formed in the center of each double-sided tape (122-1, 122-3).

[0092] Accordingly, the filter fabric (122-2) and the double-sided tape (122-1, 122-3) are in close contact with each other, and sound entering from the outside through the first sound receiving hole (H1) can pass through the tape holes (122-15, 122-35).

[0093] Hereinafter, with reference to FIG. 10, a detailed structure in which the pipe cap (300) is in close contact with the outer cover (121) will be described. FIG. 10 illustrates the structure in which the pipe cap of FIG. 6 is in close contact with the outer cover.

[0094] As shown in FIG. 10, a sealing projection (327) may be formed around a second cap hole (325) on the second surface (320) of the pipe cap (300).

[0095] The sealing projection (327) can be in close contact with the groove (121-1) formed around the second sound hole (H2) on the inner surface of the outer cover (121).

[0096] The sealing protrusions (327) and grooves (121-1) that are in close contact with each other can prevent water or dust from entering the interior of the first temple (120L) through the space between the outer cover (121) and the pipe cap (300).

[0097] Hereinafter, with reference to FIGS. 11 to 13, a structure in which a BCM (400) is embedded in a tip (130L, 130R) will be described. FIG. 11 illustrates the BCM of FIG. 1 and a holding cap that holds it. FIG. 12 illustrates a structure in which the BCM and the holding cap of FIG. 11 are embedded within a tip. FIG. 12 (12-1) illustrates the state before the BCM (400) is inserted into the holding cap (500), and FIG. 12 (12-2) illustrates the state after the BCM (400) is inserted into the holding cap (500). FIG. 13 is a cross-sectional view and an exploded view of the tip portion in FIG. 1 in which the BCM is embedded. FIG. 12 and FIG. 13 illustrate a structure in which the BCM is embedded in a second tip (130R), but this can be applied as is to a structure in which the BCM is embedded in a first tip (130L).

[0098] Referring to FIG. 11, a recess (501) in which a BCM (400) can be inserted and held may be formed on one side of the holding cap (500). Additionally, a plurality of holding protrusions (503) for holding the BCM (400) when the BCM (400) is inserted into the recess (501) may be formed on the inner side of the recess (501). The plurality of holding protrusions (503) may serve to block external vibrations other than vibrations from the temporal bone caused by the user's voice. The holding cap (500) and the holding protrusions (503) may be made of an elastic material (e.g., rubber material) to facilitate the blocking of external vibrations. Thus, the holding cap (500) can serve as a vibration damper.

[0099] As illustrated in FIGS. 12 and 13, the BCM (400) mounted on the PCB (128) can be positioned at the portion of the second tip (130R) that is in close contact with the user's temporal bone. The BCM (400) is in close contact with the inner cover (127) and can sense vibrations corresponding to the user's voice entering from the temporal bone.

[0100] The holding cap (500) can prevent external vibrations other than vibrations from the temporal bone due to the user's voice from entering the BCM (400) by covering (or shielding) the BCM (400) such that the concave portion (501) faces the BCM (400) mounted on the PCB (128).

[0101] As illustrated in FIG. 13, the BCM (400) and PCB (128) can be secured to the inner cover (127), for example, via an adhesive tape (129) (or adhesive). When the outer cover (121) and the inner cover (127) are joined together, the outer cover (121) can press the holding cap (500) and the BCM (400) toward the inner cover (127).

[0102] Hereinafter, with reference to FIG. 14, the effect of external vibration according to the placement position of the BCM (400) and PCB (128) in the tip (130R) will be explained. FIG. 14 is a cross-sectional view of the tip showing an example of the placement position of the BCM within the tip of FIG. 1. In FIG. 14, the BCM (400) is not visible because it is inserted into the holding cap (500). Only the PCB (128) on which the BCM (400) is mounted is visible.

[0103] As illustrated in (14-1) of FIG. 14, one may consider a case where the BCM (400) and PCB (128) are positioned adjacent to the outer cover (121) of the tip (130R). However, in this case, it is difficult for the holding cap to block vibrations caused by external noise on the outer cover (121) side from entering the BCM (400), and it is also difficult to sense vibrations caused by the user's voice.

[0104] Accordingly, as shown in (14-2) of FIG. 14, it is preferable that the BCM (400) and PCB (128) be positioned adjacent to the inner cover (127) of the tip (130R). In this case, the holding cap can easily block vibrations caused by external noise from the outer cover (121) from entering the BCM (400), and it is also easy to sense vibrations caused by the user's voice. Additionally, it is preferable that there be no empty space between the inner cover (127) and the holding cap (500), or that the space be minimized. This is because vibrations from the outer cover (121) can propagate as sound through the empty space and cause the BCM (400) to vibrate. The configuration according to (14-2) of FIG. 14 corresponds to the arrangement of the holding cap and BCM inside the tip described in FIG. 11 to FIG. 13.

[0105] If the PCB (128) is composed of a flexible PCB, the portion of the PCB (128) not covered by the holding cap (500) may be vulnerable to external vibrations. Therefore, the length of the PCB (128) may be designed to be short so that the portion of the PCB (128) not covered by the holding cap (500) is minimized.

[0106] Hereinafter, with reference to FIG. 15, the effect of a holding cap that holds a BCM (400) in an electronic device (100) configured as described in FIG. 11 to 14 will be explained. FIG. 15 illustrates experimental data regarding the effect of a holding cap that holds a BCM in an electronic device according to FIG. 11 to 13.

[0107] The applicant conducted an experiment on the influence of external noise on each of the electronic device (100) in which only the BCM (400) is mounted toward the inner cover (127) without the holding cap (500) and the electronic device (100) in which the BCM (400) covered with the holding cap (500) is mounted toward the inner cover (127).

[0108] When 70dB of noise was generated at a distance of 1m from the electronic device (100), it was confirmed that the electronic device (100) equipped with a BCM (400) covered by a holding cap (500) was improved by about 7.24dB in blocking external noise compared to the electronic device (100) equipped with only a BCM (400) without a holding cap (500).

[0109] In the foregoing, it has been described that the ACM (200) is placed on the temple (120) of the electronic device (100). However, the present disclosure is not limited thereto. The ACM (200) may also be placed on the rim (110). This will be explained with further reference to FIG. 16. FIG. 16 illustrates the external appearance of an electronic device according to one aspect of the present disclosure.

[0110] As illustrated in FIG. 16, a third ACM (200C) may be provided within the bridge (111) between the two lenses of the rim (110). The third ACM (200C) may be provided in the electronic device (100) together with the aforementioned BCM (400). Additionally, the third ACM (200C) may be provided in the electronic device (100) together with at least one of the aforementioned first ACM (200L) and second ACM (200R), or provided in the electronic device (100) instead of the aforementioned first ACM (200L) and second ACM (200R).

[0111] Although not shown, the bridge (111) may be equipped with two sound receiving holes oriented in different directions perpendicular to each other (or at an angle of 80 degrees or more and 135 degrees or less). One of the two sound receiving holes may be oriented toward the front of the electronic device (100) to receive ambient sound, and the other of the two sound receiving holes may be oriented toward the user's mouth to receive the user's voice.

[0112] Inside the bridge (111), a third ACM (200C) and a conduit hole (not shown) may be arranged to correspond to two sound receiving holes in the structure described in FIGS. 6 to 10.

[0113] The above-described disclosure can be implemented as computer-readable code on a medium on which a program is recorded. Computer-readable media include all types of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include HDD (Hard Disk Drive), SSD (Solid State Disk), SSD (Silicon Disk Drive), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Claims

1. An electronic device having an eyeglass-shaped structure comprising: a first temple; a first tip connected to the first temple; a second temple; a second tip connected to the second temple; and a rim, A first ACM (Air Conduction Microphone) provided in the first temple; and A BCM (Bone Conduction Microphone) provided on one of the first tip and the second tip; comprising The electronic device is characterized in that the above BCM is provided in one of the first tip and the second tip so as to be adjacent to the user's temporal bone when the user wears the electronic device.

2. In claim 1, the electronic device An electronic device characterized by further including a second ACM provided in a second temple.

3. In Paragraph 1, The first ACM has two sound receiving parts, and the electronic device is An electronic device characterized by further comprising a tube cap for forming a sound receiving tube for one of the two sound receiving parts.

4. In Paragraph 3, An electronic device characterized in that the first temple includes a first sound receiving hole and a second sound receiving hole, and the directional direction of the first sound receiving hole and the directional direction of the second sound receiving hole are 80 degrees or more and less than 135 degrees.

5. In Paragraph 4, One end of the sound receiving tube of the above-mentioned tube cap faces one of the two sound receiving parts, and An electronic device characterized in that the other end of the sound receiving tube of the above-mentioned tube cap faces a second sound receiving hole.

6. In Paragraph 5, A sealing projection is formed around the other end of the sound receiving tube of the above-mentioned tube cap, and An electronic device characterized by having a groove formed on the inner surface of the first temple around the second sound hole for seating the sealing projection.

7. In Paragraph 1, The above BCM is positioned adjacent to the inner cover constituting the one tip, and the electronic device is It further includes a holding cap that holds the above BCM, and An electronic device characterized in that the above BCM is held within the concave portion of the above holding cap.

8. In Paragraph 7, An electronic device characterized by having a plurality of holding protrusions formed on the inner side of the concave portion of the holding cap to hold the BCM.

9. In Paragraph 7, An electronic device characterized in that when an outer cover constituting one tip is combined with an inner cover, the outer cover compresses the holding cap and the BCM in a direction toward the inner cover.

10. An electronic device having an eyeglass-shaped structure comprising: a first temple; a first tip connected to the first temple; a second temple; a second tip connected to the second temple; and a rim, An ACM (Air Conduction Microphone) provided on the bridge of the above-mentioned rim; and A BCM (Bone Conduction Microphone) provided on one of the first tip and the second tip; comprising The electronic device is characterized in that the above BCM is provided in one of the first tip and the second tip so as to be adjacent to the user's temporal bone when the user wears the electronic device.

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