KR20220078232A - Soundproof mask device - Google Patents

Abstract

The present invention relates to a soundproofing mask device, comprising: a mask-type wearing part including a central part facing a user's mouth and an earring part hung on the user's ear; and a soundproofing plate disposed on the mask type wearing part. The soundproofing plate may include first and second soundproofing pattern portions symmetrically spaced apart from each other in the mask type wearing portion; and a third soundproof pattern part disposed between the first soundproof pattern part and the second soundproof pattern part. Each of the first to third soundproofing pattern parts includes soundproofing patterns protruding toward the user.

Description

Soundproofing mask device {SOUNDPROOF MASK DEVICE}

The present invention relates to a soundproofing device, and more particularly, to a wearable soundproofing masking device.

The music market is expanding explosively due to the expansion of the karaoke market, the popularity of audition programs, and music contents of YouTube. Due to noise issues, there are restrictions on the places where you can sing. For example, people can go to a karaoke room or a special place (music room, studio, etc.) equipped with soundproofing walls or expensive soundproofing to sing or practice pronunciation comfortably.

When talking on the phone or having a conversation in a public place, you should speak at a lower volume in order not to cause inconvenience to others due to noise. In the call center, many employees are making a lot of noise due to prolonged calls with customers, and there is no way to improve this.

Republic of Korea Patent Publication No. 2020-0109216 (published date: September 22, 2020, title of invention: “mask type soundproofing pad”) Republic of Korea Patent No. 10-1662454 (Registration Date: September 27, 2016, Title of Invention: “Headset with Face Cover”)

SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned needs and/or problems.

In particular, the present invention provides a soundproofing mask device that does not require expensive soundproofing equipment, so there is no restriction in place and enables singing practice, pronunciation practice, phone calls, conversations, etc. without noise problems.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

A soundproofing mask device according to an embodiment of the present invention includes a soundproofing plate disposed in the center of the mask-type wearing part. The soundproofing plate may include first and second soundproofing pattern portions symmetrically spaced apart from the central portion of the mask type wearing portion; and a third soundproof pattern part disposed between the first soundproof pattern part and the second soundproof pattern part.

Each of the first to third soundproofing pattern parts includes soundproofing patterns protruding toward the user. The sound insulation patterns include a plurality of longitudinally elongated first patterns and a plurality of transversely elongated second patterns. The first patterns and the second patterns are alternated one by one in each of the longitudinal and transverse directions of the sound insulation plate. A distance between the first to third soundproof pattern parts is at least twice greater than a distance between adjacent first and second patterns in each of the first to third soundproof pattern parts.

Each of the first and second patterns may have a rectangular side surface in the longitudinal direction and a trapezoidal cross-sectional structure in the width direction.

n (n is an even number greater than or equal to 2) vertical lines in which the first pattern and the second pattern alternate along the longitudinal direction such that the first pattern and the second pattern are alternated one by one along the horizontal direction of the sound insulation board may include Each of the first and second soundproofing pattern portions may include m (m is a positive integer greater than or equal to 4) number of vertical lines. The first to third soundproof pattern portions may include the same number of horizontal lines.

The soundproofing mask device may further include a driving circuit unit disposed in front of the soundproofing plate to amplify the user's voice signal, convert it into a digital signal, and transmit it to an external mobile terminal through short-distance communication.

Soundproofing mask device according to another embodiment of the present invention is a front case; a soundproofing plate disposed in the concave space of the front case; a driving circuit unit disposed in front of the soundproofing plate to amplify a user's voice signal, convert it into a digital signal, and transmit it to an external mobile terminal through short-distance communication; and a rear case disposed in front of the driving circuit unit to cover the soundproof plate and the driving circuit unit.

The voice signal received by the mobile terminal through the short-distance communication may be stored, edited, outputted, and transmitted to another external terminal in the mobile terminal according to the user's command.

The soundproofing mask device of the present invention enables singing practice, pronunciation practice, phone calls, conversations, etc. without noise problems and location restrictions, including soundproof patterns that cancel the user's voice signal frequency.

The soundproof mask device of the present invention amplifies a voice signal through a microphone module and blocks the sound propagating to the outside with a soundproofing plate so that the user can freely practice singing, practicing pronunciation, talking on the phone, talking, etc. without noise problems and location restrictions and save audio files. In addition, the present invention connects the soundproofing mask device to the mobile terminal through a short-distance communication link to transmit the voice signal generated from the soundproofing masking device to the mobile terminal to store the voice file in the mobile terminal and edit the voice file in the mobile terminal. have.

The present invention enables singing practice, pronunciation practice, phone calls, conversations, etc. without noise problems and location restrictions by outputting the voice signal transmitted from the soundproofing mask device to the mobile terminal through wired/wireless earphones (or headphones) connected to the mobile terminal make it

Furthermore, the present invention can improve the noise problem between floors and noise in public places caused by voices generated in situations such as singing practice, pronunciation practice, phone calls, and conversations.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1A and 1B are views showing a soundproofing mask device according to an embodiment of the present invention.
2 is a plan view showing a sound insulation board.
3 is a view showing soundproof patterns of the bent soundproofing plate when the user wears the soundproofing mask device.
4A to 4D are views showing the sound insulation board in detail from various angles.
5A and 5B are views showing a soundproofing mask device according to another embodiment of the present invention.
6 is a block diagram showing the configuration of the driving circuit shown in FIGS. 5A and 5B.
7 is a flowchart illustrating voice data communication between the soundproofing mask device and the mobile terminal shown in FIGS. 5A and 5B in stages.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. The present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only the embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains It is provided to fully understand the scope of the invention, and the present invention is only defined by the scope of the claims.

The shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining the embodiment of the present invention are exemplary, and therefore the present invention is not limited to the matters shown in the drawings. Like reference numerals refer to substantially identical elements throughout. In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

When "includes", "includes", "having", "consisting of", etc. mentioned in this specification are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, it may be interpreted as the plural unless otherwise explicitly stated.

In interpreting the components, it is construed as including an error range even if there is no separate explicit description.

In the case of a description of the positional relationship, for example, when the positional relationship between two components is described as "on", "on top", "under One or more other elements may be interposed between those elements in which 'directly' or 'directly' are not used.

In the connection relationship between components, "connected (or combined)" can be interpreted not only when "directly connected" but also "indirectly connected" with other components in between. can

1st, 2nd, etc. may be used to distinguish the components, but the functions or structures of these components are not limited to the ordinal number or component name attached to the front of the component.

The following embodiments can be partially or wholly combined or combined with each other, and technically various interlocking and driving are possible. Each of the embodiments may be implemented independently of each other or may be implemented together in a related relationship.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A is a plan view showing an inner surface of a soundproofing mask device according to an embodiment of the present invention. 1B is a side view showing a folded state of the acoustic mask device shown in FIG. 1A.

1A and 1B , the acoustic mask device according to an embodiment of the present invention includes a mask-type wearing part 12 and a soundproofing plate 20 bonded to the inside of the mask-type wearing part 12 .

The mask type wearing part 12 includes a central part 10 covering the user's mouth and nose, and an earring part extending to both sides of the central part 10 to be hung on the user's ear. The mask type wearing part 12 may be made of fiber or resin applied to a general mask. The central part 10 of the mask type wearing part 12 may include a sound insulating material or a sound insulating material. The mask type wearing unit 12 may further include one or more of a fine dust blocking filter and an antibacterial filter. The user may wear the soundproofing mask device by hanging the earring part of the mask type wearing part 12 on the ear.

The shape of the mask type wearing unit 12 may be variously changed. For example, as disclosed in Republic of Korea Patent Publication No. 2020-0109216 (published date: September 22, 2020) previously filed by the applicant of the present application, the mask type wearing part 12 is extended from both earring parts. It may further include a head fixing unit. Both sides of the head fixing unit may include a Velcro (Velcro) tape. The head fixing parts on both sides are joined to each other at the back of the user's head, so that the mask type wearing part 12 can be securely fixed to the user's head.

The inner central portion 10 of the mask type wearing unit 12 includes a portion facing the user's mouth. The soundproofing plate 20 may be disposed on at least a portion of the central portion 10 to be fixed to the mask type wearing portion 12 or to be detachably bonded. The soundproofing plate 20 may minimize sound waves propagating out of the mask-type wearing unit 120 by using a plurality of soundproofing patterns that cancel the frequency of the voice signal generated by the user. When a sound-insulating material or sound-insulating material is inserted into the central portion 10 of the mask-type wearing part 12 , the soundproofing effect may be doubled.

The soundproofing plate 20 may be made of a plastic material having elasticity and easy injection molding, and may be disposed in the central portion 10 of the mask type wearing part 12 . As shown in FIG. 2 , the sound insulation board 20 includes a first sound insulation pattern part 21 , a second sound insulation pattern part 22 , and between the first sound insulation pattern part 21 and the second sound insulation pattern part 22 . and a third soundproofing pattern part 23 disposed on the . An imaginary center line REF passing through the center of the sound insulation plate 20 substantially coincides with the center of the mask type wearing part 12 .

Left and right sides with respect to the center line REF of the sound insulation board 20 have a symmetric structure. The first soundproofing pattern part 21 is disposed on one side of the soundproofing plate 20 and includes a plurality of soundproofing patterns protruding toward the user. The second soundproofing pattern part 22 is disposed on the other side of the soundproofing plate 20 and includes a plurality of soundproofing patterns protruding toward the user. The third sound insulation pattern portion 23 is disposed in the center of the sound insulation plate 20 between the first sound insulation pattern portion 21 and the second sound insulation pattern portion 22 and includes a plurality of sound insulation patterns protruding toward the user.

The first and second soundproofing pattern portions 21 and 22 may be set to have substantially the same size. The number and arrangement of the soundproofing patterns arranged along the longitudinal direction (Y) and the soundproofing patterns arranged along the lateral direction (X) in the first soundproofing pattern part 21 are those of the second soundproofing pattern part 22 Practically the same. In the third sound insulation pattern portion 23, the number of sound insulation patterns arranged along the longitudinal direction (Y) is higher than that of the first and second sound insulation pattern portions 21 and 22, compared to the first and second sound insulation pattern portions 21 and 22. 22), while the number of soundproofing patterns arranged along the lateral direction X is smaller than that of the first and second soundproofing pattern portions 21 and 22.

The third sound insulation pattern portion 23 is spaced apart from the first sound insulation pattern portion 21 by a predetermined separation distance D, and similarly, is spaced apart from the second sound insulation pattern portion 23 by a predetermined separation distance D. The separation distance (D) between the soundproof pattern parts (21, 22, 23) is more than twice the distance (d) between the adjacent soundproof patterns in each of the soundproof pattern parts (21, 22, 23) shown in FIG. It can be set to a large value. Due to this soundproofing plate structure, when the user wears the soundproofing mask device, the mask-type wearing part 12 is easily bent along the user's face without interference between soundproofing patterns as shown in FIG. 3 . In addition, when the user wears the mask type wearing part 12, the soundproofing plate 20 is bent and the interval D between the soundproofing pattern parts 21, 22, 23 is narrowed so that the soundproofing pattern parts 21, 22, 23 The interval D between the sound insulation pattern portions 21 , 22 , and 23 may be the same as or similar to the inner distance d of the sound insulation pattern portions 21 , 22 , and 23 , thereby effectively canceling the sound insulation patterns in the propagation direction of the sound wave.

4A to 4D are views showing the sound insulation board 20 in detail from various angles. 4A is a plan view of a soundproofing pattern viewed from the front. Fig. 4B is a side view taken along the line A-A' shown in Fig. 4A; 4c and 4d are three-dimensional views of the sound insulation board viewed from various angles. The sound insulation patterns shown in FIGS. 4A to 4D are sound insulation patterns of the first and second sound insulation pattern units 21 and 22 .

4A to 4D , the sound insulation board 20 has a width in the X-axis direction, a length in the Y-axis direction, and a thickness in the Z-axis direction. The soundproofing plate 20 includes a plurality of soundproofing patterns 31 and 32 protruding in the form of embossed patterns on the thin base plate 30 .

The sound insulation patterns 31 and 32 include a plurality of first patterns 31 and a plurality of second patterns 32 . Each of the first and second patterns 31 and 32 may be implemented as a rectangular embossed pattern whose width becomes smaller toward the top. Each of the first and second patterns 31 and 32 has rectangular side surfaces in the longitudinal direction and a trapezoidal cross-sectional structure in the width direction.

The first patterns 31 are implemented as long protruding patterns in the longitudinal direction (Y). The second patterns 32 are implemented as long protruding patterns in the lateral direction (Y). The first patterns 31 and the second patterns 32 are alternated one by one in each of the longitudinal direction (Y) and the transverse direction (X).

As shown in FIG. 2 , the third sound insulation pattern part 23 is disposed between the first sound insulation pattern part 21 and the second sound insulation pattern part 22 to form a first pattern 31 along the lateral direction (X). n (n is an even number of 2 or more) column lines in which the first pattern 31 and the second pattern 32 alternate along the longitudinal direction Y so that the second pattern 32 and the second pattern 32 are alternated one by one may include Each of the first and second soundproofing pattern parts 21 and 22 may include m (m is a positive integer equal to or greater than 4) number of vertical lines. Row lines of the first to third soundproof pattern portions 21 , 22 , and 23 may be the same. The first patterns 31 and the second patterns 32 are alternated one by one in the vertical line and the horizontal line of each of the first to third soundproofing pattern parts 21, 22, and 23 to form one first pattern 31 ), four second patterns 32 are adjacent to each other, and similarly, four first patterns 31 are adjacent to one second pattern 32 periphery.

5A and 5B are views showing a soundproofing mask device according to another embodiment of the present invention.

Referring to FIG. 5A , the acoustic mask apparatus 100 may include a front case 110 , a sound insulation plate 120 , a driving circuit unit 130 , and a rear case 140 .

In this embodiment, the acoustic mask device 100 may be implemented as a module that converts a voice signal received through a microphone into an electrical signal and transmits it to the mobile terminal 200, for example, a smart phone through short-distance communication. . This soundproof mask module may be detachably coupled to the mask type wearing part 12 omitted from the drawing. For example, the soundproof mask module shown in FIG. 5 may be detached from the mask type wearing unit 12 in a pocket method or may be detached from the mask type wearing unit through a separate fastening mechanism.

The front case 110 may be implemented as an injection-molded plastic having a concave structure that covers the user's nose and mouth. The front case 110 may be detachably attached to the central part 10 of the mask type wearing part 12 of the above-described embodiment. In another embodiment, the wearing band 111 may be connected to both sides of the front case 110 . In this case, the user can directly wear the soundproofing mask device by using the wearing band 111 connected to the front case 110 without requiring a separate mask type wearing unit 12 .

The heat sink 120 may be implemented as a heat sink having substantially the same structure as that of the above-described embodiment. The heat sink 120 may be manufactured in a curved shape along the inner concave curved surface of the front case 110 to be disposed in the concave space of the front case 110 . In another embodiment, the front case 110 and the heat sink 120 may be integrated with a plastic injection molding as shown in FIG. 5B . In this case, the driving circuit unit 130 may be disposed between the front gate 110 and the rear case 140 to further simplify and slim the sound insulation mask device 100 .

The driving circuit unit 130 may be disposed in front of the sound insulation board 120 to amplify the user's voice signal, convert it into a digital signal, and transmit it to the external mobile terminal 200 through short-distance communication. The voice signal received from the driving circuit 130 to the mobile terminal 200 may be stored, edited, outputted, and transmitted to another external terminal 210 in the mobile terminal according to a user's command.

The driving circuit unit 130 may be disposed between the heat sink 120 and the rear case 140 or between the heat sink 120 and the user's mouth. Since the driving circuit unit 130 includes a microphone module, it should be disposed closer to the user's mouth than the heat sink 120 . When the microphone module is disposed behind the heat sink 120, the voice signal attenuated by the heat sink 120 is received by the microphone module. can

The driving circuit unit 130 includes a printed circuit board on which the driving circuit shown in FIG. 6 is mounted, and amplifies the user's voice signal received through the microphone module, converts it into a digital signal, and transmits it to the mobile terminal .

The rear case 140 may be coupled to the front case 110 by covering the heat sink 120 and the driving circuit unit 130 . The rear case 140 may include an opening through which at least a portion of the microphone module mounted on the driving circuit unit 130 is exposed, and an opening through which a display unit visually showing the state of the soundproof mask module. The opening for exposing the display unit in the rear case 140 may be covered with a transparent window.

The rear case 140 may be omitted. In this case, the driving circuit unit 130 may be exposed without the rear case 140 .

6 is a block diagram illustrating the configuration of the driving circuit shown in FIG. 5 .

Referring to FIG. 6 , the driving circuit unit 130 includes a control unit 131 , a microphone module 132 , a short-range communication module 133 , a battery 134 , an interface unit 135 , a display unit 136 , and a memory 137 . ) is included.

The control unit 131 includes a processor that controls the overall operation of the driving circuit unit 130 . For example, the control unit 131 transmits a voice signal in the form of a digital signal input from the microphone module 132 to the short-distance communication module 133 , detects an external device connected to the interface unit 135 , and a corresponding component connect to The controller 131 controls data transmission between the microphone module 132 and the memory 137 . The controller 131 compresses the voice data received through the microphone module 132 to generate a voice file and stores it in the memory 134 or transmits the voice data to the mobile terminal 200 through the short-distance communication module 133 and , the voice file may be transmitted to the mobile terminal 200 through the interface unit 135 .

The microphone module 132 amplifies the user's voice signal, converts it into a digital signal through an analog-to-digital converter (ADC), and transmits it to the controller 132 . The microphone module 132 may remove noise from the voice signal and transmit it to the controller 132 .

The short-distance communication module 133 may support short-range communication by using a short-range communication standard protocol, for example, Bluetooth™, by using the digital voice signal from the microphone module 132 . In particular, the short-distance communication module 133 may support BLE (Bluetooth Low Energy) with good compatibility and low power driving.

The interface unit 135 may include a wired interface port connected to the mobile terminal and a wired/wireless charging interface port connected to an external power source.

The battery 134 provides power required for driving the driving circuit unit 130 by charging power supplied through the interface unit 135 .

The display unit 136 uses a display device such as a light-emitting diode (LED) or a liquid-crystal display (LCD) to display the data input from the control unit 131, so that the soundproof mask module An operating state, for example, a remaining battery level, a data transmission/reception state, etc. may be visually notified to the user.

The mobile terminal 200 includes a short-range communication module for forming a short-range communication link with the soundproofing mask device 100 . In addition, the mobile terminal 200 may execute an application program that provides a service for editing, storing, and transmitting a voice signal received through the soundproofing mask device 100 to another external device.

The user can activate short-distance communication in his/her mobile terminal 20 and listen to his/her own voice signal through the mobile terminal 200 in real time while pairing with the soundproofing mask device 100 . When the mobile terminal 200 is in the call mode, the mobile terminal 200 may transmit the user's voice signal received from the soundproofing mask apparatus 100 to another mobile terminal 210 in real time. Accordingly, the user can practice singing and talking on the phone without causing noise damage to the surroundings while listening to the voice signal received through the soundproofing mask device 100 in real time.

A user may execute an application program set in his/her mobile terminal 200 to store and edit his/her voice signal received from the soundproofing mask device 100 in the mobile terminal 200 . The user can set the output path of the voice signal in the application program. For example, the application is a soundproofing mask device only through earphones (or headphones) connected to the mobile terminal 200 by wire/wireless so that the voice signal is not output to the outside through the built-in speaker of the mobile terminal 200 according to the user settings. A voice signal received through 100 may be output.

The memory 137 may temporarily store data received through the controller 131 under the control of the controller 131 and store a voice file.

7 is a flowchart illustrating voice data communication between the soundproofing mask apparatus 100 and the mobile terminal 200 shown in FIG. 5 in stages.

Referring to FIG. 7 , when the user utters a voice, the user's voice signal is input to the microphone module 132 of the soundproofing mask apparatus 100 ( S1 ). The microphone module 132 amplifies the user's voice signal and converts it into a digital signal (S2). The control unit 131 transmits a voice signal (digital signal) from the microphone module 132 to the external mobile terminal 200 through the short-range communication module 133 .

When the mobile terminal 200 and the soundproofing mask apparatus 100 are connected through a short-range communication link, the voice signal from the soundproofing masking apparatus 100 may be transmitted to the mobile terminal 200 through the short-distance communication link (S3 and S4).

The mobile terminal 200 may execute an application program in response to a user input (S5). The application program may edit the stored voice file received from the soundproofing mask device 100 in response to the user command to process the user command (S61 and S62). If the user wants to share the voice file through the social network, the application program can upload the voice file to the social network (S63 and S64).

When the earphone (or headphones) is connected to the mobile terminal 200 , the mobile terminal 200 outputs the voice signal received from the soundproofing mask apparatus 100 in real time ( S71 , S72 ). Therefore, the user can freely practice singing without excessively lowering the volume without noise problems and location restrictions.

When the mobile terminal 200 is in the call mode, the mobile terminal 200 transmits the voice signal received from the soundproofing mask device 100 to another mobile terminal (or phone) in real time (S81, S82). Accordingly, the user can make a phone call without a noise problem.

Since the contents of the specification described in the problems, problem solving means, and effects to be solved above do not specify essential features of the claims, the scope of the claims is not limited by the matters described in the contents of the specification.

Although the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and various modifications may be made within the scope without departing from the technical spirit of the present invention. . Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present invention should be construed by the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: the central part of the mask type wearing part 12: the mask type wearing part
20, 120: soundproof plate 21, 22, 23: soundproof pattern part
31, 32: soundproof pattern 100: soundproof mask device
110: front case 130: driving circuit unit
131: control unit 132: microphone module
133: short-range communication module 134: battery
135: interface unit 136: display unit
137: memory 140: rear case
200, 210: mobile terminal

Claims (5)

a mask type wearing part 12 including a central part facing the user's mouth and an earring part hung on the user's ear;
and a soundproofing plate 20 disposed in the center of the mask type wearing part,
The soundproofing plate 20,
first and second soundproof pattern portions 21 and 22 symmetrically spaced apart from the center portion of the mask type wearing portion; and
and a third soundproofing pattern part 23 disposed between the first soundproofing pattern part and the second soundproofing pattern part,
Each of the first to third soundproof pattern parts 21, 22, 23 includes soundproof patterns protruding toward the user,
The soundproofing patterns are
A plurality of longitudinally long first patterns 31 and,
and a plurality of second patterns 32 elongated in a transverse direction,
In each of the longitudinal direction (Y) and the transverse direction (X) of the sound insulation plate 20, the first patterns 31 and the second patterns 32 are alternated one by one,
A distance D between the first to third soundproofing pattern parts 21, 22, and 23 is equal to the first to third soundproofing pattern parts 21, 22, and 23 of the adjacent first patterns ( 31) and the second pattern (32) of the gap (d) greater than twice the sound-proof mask device. The method of claim 1,
Each of the first and second patterns 31 and 32 has a rectangular side surface in the longitudinal direction and a soundproof mask device having a trapezoidal cross-sectional structure in the width direction. 3. The method of claim 1 or 2,
The third sound insulation pattern part 23 is formed in a first direction along the longitudinal direction Y such that the first pattern 31 and the second pattern 32 alternate one by one along the transverse direction X of the sound insulation plate 20 . The pattern 31 and the second pattern 32 include alternating n (n is an even number of 2 or more) longitudinal lines,
Each of the first and second soundproofing pattern parts includes m (m is a positive integer greater than or equal to 4) number of longitudinal lines,
The first to third soundproofing pattern portions 21 , 22 and 23 include the same number of transverse lines. The method of claim 1,
The soundproofing mask device further comprising a driving circuit unit 130 disposed in front of the soundproofing plate to amplify the user's voice signal, convert it into a digital signal, and transmit it to an external mobile terminal through short-distance communication. front case 110;
a soundproofing plate 120 disposed in the concave space of the front case;
a driving circuit unit 130 disposed in front of the soundproofing plate to amplify the user's voice signal, convert it into a digital signal, and transmit it to an external mobile terminal through short-distance communication; and
and a rear case disposed in front of the driving circuit unit to cover the soundproof plate 120 and the driving circuit unit 130 ,
A soundproof mask device in which the voice signal received in the mobile terminal 200 through the short-distance communication is stored, edited, output and transmitted to another external terminal in the mobile terminal 200 according to the user's command.

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