KR20130004992A - Mobile handset - Google Patents

Mobile handset Download PDF

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Publication number
KR20130004992A
KR20130004992A KR1020110066269A KR20110066269A KR20130004992A KR 20130004992 A KR20130004992 A KR 20130004992A KR 1020110066269 A KR1020110066269 A KR 1020110066269A KR 20110066269 A KR20110066269 A KR 20110066269A KR 20130004992 A KR20130004992 A KR 20130004992A
Authority
KR
South Korea
Prior art keywords
microphone
headphone
headphone connector
mobile handset
connector
Prior art date
Application number
KR1020110066269A
Other languages
Korean (ko)
Inventor
김경용
강병수
김명환
서형원
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020110066269A priority Critical patent/KR20130004992A/en
Publication of KR20130004992A publication Critical patent/KR20130004992A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements

Abstract

PURPOSE: A mobile handset is provided to have a second microphone solely used for noise canceling in a headphone connector. CONSTITUTION: A headphone connector(12) is prepared in the upper part of a body. A second microphone is installed in the headphone connector. A control part detects whether a headphone jack having a third microphone is inserted or not. The control part controls a first microphone and the second microphone. The third microphone is inserted into the headphone connector. The second microphone uses the inner surface of the headphone connector as a microphone hole.

Description

Mobile Handset

The present invention relates to a mobile handset having a second microphone device.

In general, since mobile handsets are used more outdoors than in a quiet room, where there is a lot of ambient noise, many techniques have been proposed to reduce ambient noise when making a phone call.

Among them, noise canceling technology using two microphones has been widely used in recent years. Noise canceling technology using two microphones includes two microphones in a mobile handset, a user's voice is transmitted using a first microphone installed in a position close to the user's mouth, and the second microphone is opposite to the first microphone. Place the microphone. The second microphone detects the ambient noise of the mobile handset, and inverts and synthesizes the ambient noise other than the voice of the user flowing through the first microphone, thereby removing software noise introduced into the mobile handset during a call. Only the voice of the user can be highlighted.

In addition, when only one microphone is used, a howling phenomenon may occur and call noise may be sustained. However, when two microphones are used, such a howling phenomenon may be removed by software.

As described above, in order to efficiently remove the ambient noise and the howling phenomenon by using two microphones, the first and second microphones should be separated by a predetermined distance or more, and need to be oriented in the same direction. In general, the first microphone is provided at the lower end of the mobile handset close to the user's mouth, so the second microphone is provided at the upper end of the mobile handset.

However, when the microphone hole for the second microphone is provided in the upper end of the mobile handset as described above, the microphone hole in the upper part of the product which the user frequently encounters may hinder the product aesthetics and reduce user satisfaction. In addition, dust or the like may flow into the microphone hole of the upper end, and when the 3.5 ㅨ headphone connector is installed on the upper end of the mobile handset, the space for installing the second microphone is narrow, which makes it difficult to miniaturize the product.

It is an object of the present invention to provide a mobile handset having an improved structure so that a 3.5 ㅨ headphone connector can be used as a second microphone hole for noise canceling.

Mobile handset according to the invention, the handset body; A first microphone provided at the bottom of the body; A headphone connector provided at an upper end of the body and provided with a second microphone; And a controller for detecting whether a headphone jack having a third microphone inserted into the headphone connector is inserted and controlling the first and second microphones, wherein the second microphone is inserted into the headphone connector. The headphone jack is characterized in that it is installed opposite the entrance.

Preferably, the second microphone uses the inner circumferential surface of the headphone connector as the microphone hole.

The second microphone may be installed to seal the bottom surface of the headphone connector, or may be integrally formed on the inner circumferential surface of the headphone connector.

When the headphone jack is inserted into the headphone connector, the controller stops the operation of the second microphone, and controls the third microphone as a user's voice transmission microphone and the first microphone as a noise canceling microphone. .

According to the present invention as described above, since the 3.5 ㅨ headphone connector including the second microphone is integrally disposed on the upper end of the mobile handset, it is not necessary to configure a separate mounting space for the second microphone, which is advantageous for product miniaturization.

In addition, the ambient noise is transmitted to the second microphone by using the hole of the 3.5 ㅨ headphone connector which is generally provided in the mobile handset, thereby eliminating the need to configure a separate microphone hole for the second microphone, thereby improving design freedom. have.

1 is a perspective view schematically showing a mobile handset according to the present invention;
2 is a side cross-sectional view of FIG.
3 is a perspective view schematically showing a headphone connector installed in a mobile handset according to the present invention.

Hereinafter, a mobile handset according to the present invention will be described with reference to the drawings.

1 is a perspective view showing a mobile handset according to a preferred embodiment of the present invention.

As shown, the mobile handset includes a mobile handset body 10, a first microphone 11, a headphone connector 12, and a second microphone 100.

The first microphone 11 is disposed below the mobile handset body 10 so that when the user grips the mobile handset body 10 and makes a call, the first microphone 11 may be disposed as close as possible to the user's mouth. As shown in FIG. 1, the first microphone 11 mainly receives the user's voice V, but the ambient microphone N1 is also mixed with the voice V to the first microphone 11. Inflow.

The headphone connector 12 is connected to a headphone provided to allow a user to listen to a voice signal in place of the built-in speaker, so that the headphone jack 14 (see FIG. 3) provided at an end of the headphone can be inserted and coupled. It is composed. The headphone connector 12 has a substantially circular headphone jack inlet 13, as shown in FIG. 2, wherein the headphone jack inlet 13 consists of a so-called 3.5 '' headphone connector having a diameter of 3.5 mm. It is preferable.

The second microphone 100 is installed to cancel the ambient noise N1 flowing into the first microphone 11 and is disposed at a position spaced apart from the first microphone 11 by a predetermined distance or more. Ambient noise (N2) is detected. Preferably, as shown in FIG. 1, the first microphone 11 is disposed at an upper side of the mobile handset body 10 opposite to the installed position.

A feature of the present invention is that the second microphone 100 is integrally formed with the headphone connector 12, the headphone jack inlet 13 and the headphone connector inner peripheral surface 12a of the headphone connector 12 without a separate microphone hole It is configured to be used as a microphone hole for the second microphone 100.

That is, as shown in Figures 1 and 2, the second microphone 100 is a headphone to the ambient noise (N2) introduced through the headphone jack inlet 13 formed on the upper opening surface of the headphone connector 12 It is disposed in the deepest portion of the headphone connector 12 so that it can be delivered through the connector inner peripheral surface 12a.

In this case, since the headphone jack inlet 13 is always kept open when the user does not use the headphones, the ambient noise (N2) to the second microphone 100 installed deep inside the headphone connector 12. Can be delivered. The ambient noise N2 introduced into the second microphone 100 is inverted by the controller 50 and synthesized with the ambient noise N1 introduced into the first microphone 11 to generate the user's voice V. You can emphasize it more clearly.

FIG. 2 is a side cross-sectional view of FIG. 1, illustrating an arrangement relationship between the headphone connector 12 and the second microphone 100.

As shown, the second microphone 100 is positioned as far away from the headphone jack inlet 13 of the headphone connector 12 as possible, which is a headphone jack inserted into the headphone jack inlet 13. 14) (see Fig. 3) to avoid interference.

At this time, since the ambient noise N2 flowing into the second microphone 100 is transmitted while being reflected along the inner circumferential surface 12a of the headphone connector, the headphone jack inlet 13 and the headphone connector do not form a separate microphone hole. The inner circumferential surface 12a may play the same role. However, since the diameter of the headphone jack inlet 13 is relatively larger than that of the existing microphone hole, the incoming ambient noise may occur, but this may be corrected through software processing.

Meanwhile, as shown in FIG. 3, the headphone connector 12 is provided with a plurality of terminal parts 12b so as to transmit sound signals to the headphone inserted / connected to the headphone connector 12. The number of terminals constituting the terminal portion 12b varies depending on the type of headphones used. If only a stereo sound signal is output, two terminals, a control signal using a remote control and a hands-free function through an additional microphone are provided. It is desirable to have three or more terminals.

Meanwhile, as described above, the second microphone 100 may be configured to block an end of the headphone connector 12 as an opposite side of the headphone jack inlet 13, but is not limited thereto. In consideration of the reverberation effect of the ambient noise introduced into (12), a part or all of the end of the headphone connector 12 may be opened. However, the position of the second microphone 100 should be adjusted so as to achieve maximum efficiency according to the change of the installation position, and should be arranged at least in a position that does not interfere with the headphone jack 14.

In addition, the second microphone 100 may be manufactured and coupled to a separate component from the headphone connector 12, or may be integrally formed with the headphone connector 12. If the second microphone 100 is composed of a completely different component from the headphone connector 12, the second microphone 100 is a module and should be installed at the rear end or sidewall of the headphone connector 12. In this case, the coupling part may be sealed with a material such as rubber so that sound such as ambient noise introduced through the headphone connector inner circumferential surface 12a can be measured without loss.

However, when the second microphone 100 is added as a separate component from the headphone connector 12, when viewed from the aspect of miniaturization of the product compared with the existing, or in terms of improvement of assemblability, the profit is not large, so the headphone connector ( It is preferable to add a configuration in which the second microphone 100 can be installed in the mold of 12) and to configure a body.

Meanwhile, the signal of the second microphone 100 may include a second microphone terminal unit 110 disposed at the same position as the terminal unit 12b. Although the second microphone terminal unit 110 may be disposed at a position different from that of the terminal unit 12b, the feature of the present invention is that the second microphone 100 is integrally formed on the headphone connector 12. The second microphone terminal 110 is preferably provided at a position close to the terminal 12b in consideration of assembling and ease of operation.

The operation of the mobile handset according to the present invention will now be described with reference to FIGS. 1 and 3.

1 and 3, the mobile handset body 10 according to the present invention is provided with first and second microphones 11 and 100. The sound signal including the user's voice V and ambient noise N1 and N2 input to the first and second microphones 11 and 100 is processed through the controller 50 of FIG. The ambient noise N1 introduced into the first microphone 11 is canceled by the ambient noise N2 introduced through the second microphone 100, so that the user's voice V is more clearly emphasized.

At this time, the second microphone 100 according to the preferred embodiment of the present invention is not installed in the mobile handset body 10 as a separate component, and is formed integrally with the headphone connector 12, and thus, the mobile handset body 10 Even if the microphone hole is not formed separately, the headphone jack inlet of the headphone connector 12 can be used as the microphone hole. Therefore, there is no need to penetrate a separate microphone hole on the top of the mobile handset matrix 10, thereby increasing the degree of freedom of external design of the product.

Meanwhile, when the headphone jack 14 having the third microphone 15 configured as shown in FIG. 3 is inserted into the headphone connector 12, ambient noise may be introduced through the headphone connector inner circumferential surface 12a. none.

In this case, the controller 50 stops the operation of the second microphone 100, and listens to the user's voice mainly using the third microphone 15 configured in the headphones like the existing first microphone 11. Set to microphone. In addition, the first microphone 11 plays a role of the second microphone 100.

According to the present invention as described above, in the mobile handset having a plurality of microphones for canceling the ambient noise to improve the call quality, there is no need to configure a separate microphone hole on the top of the handset body 10, Design freedom and user satisfaction can be improved.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

10; Mobile handset body 11; 1st microphone
12; Headphone connector 12a; Headphone connector inner circumference
12b; Headphone connector terminal section 13; Headphone jack entrance
14; Headphone jack 15; 3rd microphone
50; Control unit 100; 2nd microphone
110; 2nd microphone terminal part

Claims (5)

Handset body;
A first microphone provided at the bottom of the body;
A headphone connector provided at an upper end of the body and provided with a second microphone; And
And a controller for detecting whether a headphone jack having a third microphone inserted into the headphone connector is inserted and controlling the first and second microphones.
And the second microphone is installed opposite the headphone jack inlet inserted into the headphone connector.
The method of claim 1, wherein the second microphone,
And the inner circumferential surface of the headphone connector is used as a microphone hole.
The method of claim 1, wherein the second microphone,
Mobile handset, characterized in that installed to seal the bottom surface of the headphone connector.
The method of claim 1, wherein the second microphone,
And a mobile handset integrally formed on an inner circumferential surface of the headphone connector.
The apparatus of claim 1,
When the headphone jack is inserted into the headphone connector, the operation of the second microphone is stopped, and the third microphone controls the user's voice transmission microphone and the first microphone to the noise canceling microphone.
KR1020110066269A 2011-07-05 2011-07-05 Mobile handset KR20130004992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110066269A KR20130004992A (en) 2011-07-05 2011-07-05 Mobile handset

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110066269A KR20130004992A (en) 2011-07-05 2011-07-05 Mobile handset

Publications (1)

Publication Number Publication Date
KR20130004992A true KR20130004992A (en) 2013-01-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110066269A KR20130004992A (en) 2011-07-05 2011-07-05 Mobile handset

Country Status (1)

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KR (1) KR20130004992A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020256158A1 (en) * 2019-06-17 2020-12-24 주식회사 카이샷 Gender changer device in which power-free noise canceller is embedded
KR20210115290A (en) 2020-03-12 2021-09-27 이정우 A mask

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020256158A1 (en) * 2019-06-17 2020-12-24 주식회사 카이샷 Gender changer device in which power-free noise canceller is embedded
KR20210115290A (en) 2020-03-12 2021-09-27 이정우 A mask

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