KR20170059796A

KR20170059796A - Soundproof Earplug

Info

Publication number: KR20170059796A
Application number: KR1020150164220A
Authority: KR
Inventors: 박정원
Original assignee: 박정원
Priority date: 2015-11-23
Filing date: 2015-11-23
Publication date: 2017-05-31
Also published as: KR101770478B1

Abstract

The present invention relates to soundproof earplugs for preventing noise generated at a work site to allow a user to hear the voice of other workers, the soundproof earplugs comprising: a main body for preventing noise; a microphone unit for converting a sound input from outside into a sound signal; a filter unit for filtering remaining noise signals excluding a voice signal converted from the sound signal in the microphone unit; and a speaker unit for receiving the voice signal from the filter unit and converting the voice signal into voice to be outputted.

Description

Soundproof Earplug

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof earplug, and more particularly, to a soundproof earplug that prevents noise generated at a work site and can hear the voice of another worker.

Noise prevention earplugs are used to prevent workers in these workplaces from being exposed to industrial accidents such as hearing impairments because construction noise, such as construction companies, steel manufacturers and processing companies, tunnel construction sites, have.

A noise preventing earplug is generally made of a foamable sponge and has a configuration in which a foamable sponge is inserted into an ear canal of a worker. Two foamable sponges are respectively held in a pocket and used. When a user who uses the foam sponge easily loses There are many. In addition, workers are exposed to industrial accidents such as hearing impairments due to the noise generated in the workplace, and the possession of the disputes is continuously occurring.

Korean Patent No. 10-1330661 (Registered on November 31, 2013) discloses an earplug for insertion into an ear canal of an ear, which is a soft body made of a rod-shaped body to be inserted into the ear canal, And a knob protruding from the center of the rear end surface is formed in the rear end surface of the body. According to the disclosed technology, the noise cancellation performance can be improved, and a pair of ear plugs can be connected by tying them together to prevent the risk of loss.

Korean Utility Model Registration Utility Model No. 20-0267593 (registered on November 28, 2002) discloses an ear plug for ear protection which can be worn tightly and stably more securely by the ear-hole contact ring when worn. According to the disclosed technology, an ear canal insertion portion having a through hole with a filter inserted therein at a central portion thereof is protrudingly formed on one side of a cap body, and an ear canal insertion portion is formed on the upper plug main body of the ear canal insertion portion, A groove is formed in the back surface portion of the ear canal insertion portion and a concave groove is formed in the middle portion of the ear canal insertion portion and the disc-shaped ear-hole contact ring having the engaging hole formed therein is divided and formed by size.

The conventional soundproof earplug as described above is generally formed of a foam sponge so that it is difficult to separately hear the voice of another worker by preventing the noise of other workers as well as the noise generated at the worksite, It is difficult to communicate or communicate, so that there is a drawback in that the efficiency of work is lowered in a workplace with a high noise level. In addition, since ear plugs do not come close to the ear of a worker, noise from the outside can not be efficiently blocked, and noise generated in the workplace is exposed for a long time, which makes it difficult to effectively prevent acquired hearing loss.

Korean Patent No. 10-1330661 Korean Registered Utility Model No. 20-0267593

SUMMARY OF THE INVENTION It is an object of the present invention to provide a soundproof earplug in which noises generated at a work site are prevented and sounds of other workers are heard.

According to one aspect of the present invention, there is provided a means for solving the above-mentioned problems, comprising: a main body for preventing noise; A microphone unit for converting a sound input from outside into a sound signal; A filter unit for filtering the remaining noise signals excluding the voice signal from the sound signal converted by the microphone unit; And a speaker unit for receiving a voice signal from the filter unit and converting the voice signal into a voice signal and outputting the voice signal.

In one embodiment, the soundproof earplug further includes a power supply unit formed inside the main body unit and supplying power to the microphone unit, the filter unit, and the speaker unit.

In one embodiment, the soundproof earplug further includes a support frame portion for connecting the main body portions to each other to allow the main body portion to be fixed to the ear when the main body portion is worn on the ear.

In one embodiment, the soundproof earplug further includes a tightening portion formed on an inner rim portion of the main body portion and adapted to be brought into close contact with the ear while being worn on the ear.

In one embodiment, the body portion includes a soundproofing membrane member formed on the other portion of the body except for the speaker portion, for preventing noise introduced from the outside.

In one embodiment, the filter unit includes: an analysis unit for analyzing a frequency band of a speech signal and a noise signal among the sound signals converted by the microphone unit; A detection member for detecting a frequency band of a noise signal in a frequency band analyzed by the analysis member; A removal member for removing the frequency band analyzed in the detection member; And a signal output member for transmitting a sound signal corresponding to a frequency band outside the frequency band removed from the removal member to the speaker unit.

In one embodiment, the filter unit includes: a memory member for storing preset standard pattern information for a voice signal; A pattern analyzing unit for analyzing a pattern of a sound signal converted by the microphone unit; An extraction member that reads standard pattern information from the memory member and extracts only patterns corresponding to standard pattern information from the patterns analyzed by the pattern analysis member; And a signal output member for transmitting a sound signal corresponding to the pattern extracted from the extraction member to the speaker unit.

In one embodiment, the main body part is inserted into the ear and the speaker part is formed inside.

In one embodiment, the soundproof earplug further includes an auxiliary body portion for incorporating the filter portion and the microphone portion.

In one embodiment, the soundproof earplug further includes a connection part connected between the main body part and the auxiliary main body part to transmit signals of the main body part and the auxiliary main body part, and to disconnect the main body part from the ear .

According to the present invention, it is possible to effectively prevent the noise generated at the worksite and to listen to the voice of another worker by providing the soundproof earplug which prevents noise generated at the worksite and can hear the voice of another worker So that conversation and communication with each other are possible, and thus the working efficiency can be improved in a workplace with a high noise level. In addition, since the earlobe is brought into close contact with the ear, noise from the outside can be further blocked, so that it is possible to effectively prevent acquired hearing loss that may be caused by exposure to noise for a long time.

FIG. 1 and FIG. 2 are views for explaining the soundproof earplug according to the first embodiment of the present invention.
Fig. 3 is a view for explaining a main body portion shown in Fig. 1. Fig.
Fig. 4 is a view for explaining the filter unit in Fig. 1 as a first example. Fig.
Fig. 5 is a view for explaining the filter unit in Fig. 4 as a second example. Fig.
6 is a view for explaining the soundproof earplug according to the second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

The meaning of the terms described in the present invention should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

Hereinafter, a soundproof earplug according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 and FIG. 2 are views for explaining the soundproof earplug according to the first embodiment of the present invention.

1 and 2, a soundproof earplug 100 includes a main body 110, a microphone 120, a filter 130, and a speaker 140.

The main body 110 includes a microphone unit 120 fixed to the outside of the main body 110 and a filter unit 130 fixed inside the main body unit 110. The speaker unit 140 is fixed to the inside of the main body unit 110 to prevent noise give.

In one embodiment, the body 110 is worn on the ears of a worker who is working in a place where noise is very high, such as an industrial site, a construction site, or a place where vehicle noise is generated, can do.

In one embodiment, the body portion 110 is formed of an insulating material such as, for example, plastic, so that it can be safely handled when worn on the ear.

In one embodiment, the body portion 110 is sized to completely cover the ear so as to protect the ear of the operator.

The microphone unit 120 is fixed to the outside of the main body 110 and converts a sound input from the outside into a sound signal and transmits the converted sound signal to the filter unit 130.

In one embodiment, the microphone 120 includes a diaphragm therein, and the diaphragm vibrates due to the sound introduced from the outside, and a sound signal can be generated by the vibration of the diaphragm.

The filter unit 130 is fixed inside the main body 110 and filters the remaining noise signals excluding the voice signal from the sound signal converted by the microphone unit 120 and outputs the filtered noise signal to the speaker unit 140 ).

The speaker unit 140 is fixed to the inside of the main body 110 and receives a voice signal from the filter unit 130 to convert it into voice and output it.

In one embodiment, the speaker unit 140 is formed to have a size similar to that of the ear, converts a voice signal received from the filter unit 130 into voice, and outputs the converted voice to the corresponding operator to hear other workers' So that they can communicate with each other.

In one embodiment, the soundproof ear plug 100 may further include a power supply unit 150, a support frame unit 160, and a tightening unit 170.

The power supply unit 150 is formed inside the main body 110 and supplies necessary power to the microphone unit 120, the filter unit 130 and the speaker unit 140.

In one embodiment, the power supply 150 is a rechargeable battery, such as, for example, a lithium ion rechargeable battery, that provides a high energy density and can be formed inside the body 110 because of its light weight, Can be used to charge and use.

In one embodiment, the power supply unit 150 is, for example, a battery, installed inside the main body 110, and can be conveniently used for a long time without using a separate charger.

The support frame portion 160 connects the main body portions 110 to each other and allows the main body portion 110 to be fixed to the ear when the main body portion 110 is worn on the ear.

In one embodiment, the support frame portion 160 may be in close contact with the head of the operator so that the body portion 110 may be secured to the ear when the body portion 110 is worn on the ear.

In one embodiment, the support frame portion 160 may be provided with a cushion at its central portion to prevent an impact on the head of the operator when the main body 110 is worn.

In one embodiment, the support frame portion 160 can be worn not only on the operator's head, but also on the back of the neck or below the chin.

The close contact portion 170 is formed on the inner edge portion of the main body portion 110 so that the microphone portion 120 is brought into close contact with the ear while being worn on the ear.

The tight fitting portion 170 is formed so as to surround the ear at the inner rim portion of the main body portion 110 so as to cover the ear while being worn on the ear so that the speaker portion 140 closely contacts the ear, It is possible to provide a sound power of 30 dB.

The soundproof ear plug 100 having the above-described structure is provided with a filter unit 130 installed inside the main body 110 to prevent noise generated at a work site and to listen to the voice of another worker , It is possible to effectively prevent the noise generated at the work site and to listen to the voice of another worker, thereby enabling communication and communication with each other. Thus, the work efficiency can be improved in a noisy work area. In addition, since the sound-insulating ear plug 100 can further block the noise introduced from the outside by closely contacting the contact portion 170 to the ear, it is possible to effectively prevent acquired hearing loss that may be caused by long-time noise exposure.

Fig. 3 is a view for explaining a main body portion shown in Fig. 1. Fig.

Referring to FIG. 3, the main body 110 includes a soundproofing film member 111.

The soundproofing membrane member 111 is formed in a remaining portion of the main body 110 except for the speaker 140, thereby preventing noise from the outside.

In one embodiment, the soundproofing membrane member 111 is made of a sound absorbing material such as a glass fiber, a rocking surface, a soft fiber board, or the like, and a noise generated from the outside and sound generated from the microphone unit 120 and the speaker unit 140 A sound absorbing material for absorbing vibration or blocking sound can be used to block external noise and vibration generated from the microphone unit 120 and the speaker unit 140. [

Fig. 4 is a view for explaining the filter unit in Fig. 1 as a first example. Fig.

Referring to FIG. 4, the filter unit 130 includes an analysis member 131, a detection member 132, a removal member 133, and a signal output member 134.

The analyzing member 131 analyzes frequency bands of the voice signal and the noise signal among the sound signals converted by the microphone unit 120 and transmits the analyzed frequency band to the detecting member 132.

In one embodiment, the analysis member 131 may divide the sound signal into a speech signal and a noise signal. At this time, the noise signal may be a signal generated in the workplace and a howling signal generated due to the proximity of the microphone unit 120 and the speaker unit 140.

In one embodiment, the analysis member 131 may analyze the frequency band of the speech signal and the frequency band of the noise signal by separating the frequency of the speech signal and the noise signal into a frequency axis and a time axis.

The detecting member 132 detects the frequency band of the noise signal in the frequency band analyzed by the analyzing member 131 and transmits the detected frequency band to the removing member 133.

In one embodiment, the detecting member 132 can detect a frequency band with a significantly high level of decibel (dB) as a frequency band for a noise signal. For example, when the frequency band analyzed by the analysis member 131 is about 55 dB to 65 dB and 85 dB to 120 dB, the detection member 132 detects the frequency band analyzed from 85 dB to 120 dB as the frequency band for the noise signal And can transmit the frequency band to the removing member 133. [

In one embodiment, the detecting member 132 can detect a frequency band in which the size of the decibel (dB) is significantly lower in the frequency band for the noise signal (i.e., the howling signal). For example, when the frequency band analyzed by the analysis member 131 is about 20dB to 22dB and 55dB to 65dB, the detecting member 132 detects a frequency band analyzed from 20dB to 22dB as a noise signal (i.e., Signal), and can transmit the frequency band to the removing member 133. [0063] FIG.

The removing member 133 removes the frequency band analyzed by the detecting member 132 and transmits the removed frequency band to the signal output member 134. [

The signal output member 134 transmits a sound signal (i.e., a voice signal) corresponding to a frequency band outside the frequency band removed by the removing member 133 to the speaker unit 140. [

In one embodiment, the signal output member 134 may convert the frequency band other than the frequency band removed by the removing member 133 back into a voice signal, and transmit the converted voice signal to the speaker unit 140. [

Fig. 5 is a view for explaining the filter unit in Fig. 4 as a second example. Fig.

5, the filter unit 130 includes a memory member 135, a pattern analysis member 136, an extraction member 137, and a signal output member 134. [ Here, the signal output member 134 will not be described below with respect to components similar to those of FIG. 4, and only the other components will be described.

The memory member 135 stores standard pattern information for the audio signal in advance. At this time, the standard pattern information may be a sound field or a tone color for a sound signal or a noise signal.

In one embodiment, the memory member 135 may also store standard pattern information for the noise signal.

The pattern analysis member 136 analyzes a pattern of the sound signal converted by the microphone unit 120. [

In one embodiment, the pattern analyzing member 136 analyzes the pattern of the sound signal converted by the microphone unit 120 (i.e., the sound field and tone color), and analyzes the standard pattern information of the sound signal in the sound signal have.

The extraction member 137 reads standard pattern information from the memory member 135 and extracts only the pattern corresponding to the standard pattern information from the patterns analyzed by the pattern analysis member 136 and outputs the extracted pattern to the signal output member 134).

In one embodiment, the extracting member 137 can be compared with the standard pattern information of the speech signal stored in the memory member 135 among the patterns analyzed in the pattern analyzing member 136, and extracted if similar or identical .

The signal output member 134 transmits a sound signal corresponding to the pattern extracted by the extraction member 137 to the speaker unit 140.

6 is a view for explaining the soundproof earplug according to the third embodiment of the present invention.

6, the soundproof earplug 200 includes a main body 210, a microphone 120, a filter 130, and a speaker 140. Here, the main body 210, the microphone 120, the filter 130, and the speaker 140 will not be described below with respect to components similar to those of FIG. 1, do.

The main body 210 is inserted into the ear, and the speaker 140 is formed inside.

In one embodiment, the body portion 210 may be formed in a bell shape so as to be inserted into the ear and brought into close contact therewith.

In one embodiment, the main body 210 is formed of a soft material (for example, polyurethane foam) so that the restoring force is excellent and the comfortable feeling is comfortable, so that the operator can easily wear the main body 210.

In one embodiment, the body 210 can be made in a bright color, such as yellow, orange, or the like, so that it can be seen from afar.

The speaker unit 140 is fixed to the inside of the main body 210 (that is, inside the main body 210 to be inserted into the ear), and the microphone unit 120 and the filter unit 130 The transmitted voice signal can be converted into voice and output.

In one embodiment, the soundproof earplug 200 may further include an auxiliary body portion 220 and a connection portion 230.

The auxiliary main body 220 incorporates a filter unit 130 and a microphone unit 120 therein.

The connection part 230 is connected between the main body part 210 and the auxiliary main body part 220 to transmit signals of the main body part 210 and the auxiliary main body part 220, Remove it.

The connection part 230 may be formed of a cord or a string so as to prevent loss of the main body part 210 and may include a filter part 130 and a microphone part 120 provided inside the auxiliary main part 220, The sound signal formed in the main body 210 can be transmitted to the speaker unit 140 installed in the main body 210.

In one embodiment, the connection portion 230 is formed of a material having a slight elasticity, so that the operator can easily remove the body portion 210 from the ear.

As described above, the embodiment of the present invention is not limited to the above-described apparatus and / or method, but may be implemented by a program for realizing a function corresponding to the configuration of the embodiment of the present invention and a recording medium on which the program is recorded And the present invention can be easily implemented by those skilled in the art from the description of the embodiments described above. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100: Soundproof earplugs
110, 210:
111: Soundproofing membrane member
120: microphone section
130:
131: Absence of analysis
132: detecting member
133: removal member
134: signal output member
135: Missing memory
136: Pattern analysis member
137: extraction member
140: speaker unit
150: Power supply
160: Support frame part
220: auxiliary body portion
230: Connection

Claims

A main body for preventing noise;
A microphone unit for converting a sound input from outside into a sound signal;
A filter unit for filtering the remaining noise signals excluding the voice signal from the sound signal converted by the microphone unit; And
And a speaker unit for receiving a voice signal from the filter unit and converting the voice signal into voice and outputting the voice.

The method according to claim 1,
And a power supply unit formed inside the main body to supply power to the microphone unit, the filter unit, and the speaker unit.

The method according to claim 1,
Further comprising a support frame portion connecting the main body portions to each other to fix the main body portion to the ear when the main body portion is worn on the ear.

The method according to claim 1,
Further comprising a tightening portion formed on an inner rim portion of the main body portion and adapted to be brought into close contact with the ear while being worn on the ear.

The apparatus according to claim 1,
And a soundproof membrane member formed on the other portion of the body except for the speaker portion to prevent noise from entering from the outside.

2. The filter according to claim 1,
An analysis unit for analyzing a frequency band of a speech signal and a noise signal among the sound signals converted by the microphone unit;
A detection member for detecting a frequency band of a noise signal in a frequency band analyzed by the analysis member;
A removal member for removing the frequency band detected by the detection member; And
And a signal output member for transmitting a sound signal corresponding to a frequency band outside the frequency band removed from the removing member to the speaker unit.

2. The filter according to claim 1,
A memory member for storing and storing standard pattern information for a voice signal in advance;
A pattern analyzing unit for analyzing a pattern of a sound signal converted by the microphone unit;
An extraction member that reads standard pattern information from the memory member and extracts only patterns corresponding to standard pattern information from the patterns analyzed by the pattern analysis member; And
And a signal output member for transmitting a sound signal corresponding to a pattern extracted from the extraction member to the speaker unit.

The apparatus according to claim 1,
And the speaker part is inserted into the ear and formed inside the speaker part.

9. The method of claim 8,
Further comprising an auxiliary body portion for incorporating the filter portion and the microphone portion.

10. The method of claim 9,
Further comprising a connection part connected between the main body part and the auxiliary main body part to transmit a signal of the main body part and the auxiliary main body part and to disconnect the main body part from the ear.