KR20120122017A - Earphone, mobile terminal for connecting thereof and method for controlling of thereof - Google Patents

Abstract

PURPOSE: An earphone, a mobile terminal which is connected to the same, and a controlling method thereof are provided to add a noise cancelling function by changing a structure of a plug terminal of a standard four-pole earphone. CONSTITUTION: A microphone detects external noise. A plug terminal is inserted into an ear jack which is equipped in a main body of a mobile terminal. The plug terminal comprises noise microphone terminals(315,316) which transfer external noise signal detected from the microphone to the mobile terminal and speaker terminals(313,314) which receive a noise reversed phase signal corresponding to the external noise signal from the mobile terminal. A plurality of regions in a plug terminal is divided into an insulator. One region among the plurality of regions comprises a microphone terminal, a ground terminal, either a first speaker terminal or a second speaker terminal, and the noise microphone terminal. [Reference numerals] (152) Audio processing unit; (180) Control unit; (182) Noise signal processing unit

Description

Earphones, mobile terminals connected to them and control methods for mobile terminals {EARPHONE, MOBILE TERMINAL FOR CONNECTING THEREOF AND METHOD FOR CONTROLLING OF THEREOF}

The present invention relates to an earphone having a noise canceling function, a mobile terminal connected thereto and a control method of the mobile terminal.

A terminal such as a personal computer, a notebook computer, or a mobile phone has various functions, for example, a multimedia device having a complex function such as photographing or photographing of a moving picture, reproduction of music or a moving picture file, (Multimedia player).

The terminal can move It may be divided into a mobile terminal and a stationary terminal, depending on whether it is present. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

In order to support and enhance the functionality of the terminal, it is contemplated to improve the structural and / or software portion of the terminal.

The present invention relates to a six-pole earphone having a noise canceling function compatible with a standard four-pole earphone, a mobile terminal for connecting the earphone and a control method of the mobile terminal.

Earphones according to an embodiment of the present invention for realizing the above object, a microphone for detecting external noise; And a plug terminal inserted into an ear jack provided in a main body of the mobile terminal.

The plug terminal may include a noise microphone terminal configured to transfer an external noise signal detected from the microphone to the mobile terminal, and a speaker terminal configured to receive a noise reversed phase signal corresponding to the external noise signal from the mobile terminal.

Mobile terminal according to another embodiment of the present invention, the body; An ear jack formed at one side of the body and having a plug terminal including a plurality of connection terminals; And a controller configured to receive an external noise signal detected from a microphone of the earphone through a contact point in contact with a noise microphone terminal among the plug terminals, to generate a noise inverse phase signal for attenuating the external noise signal, and to output the noise signal to the earphone. can do.

According to still another aspect of the present invention, there is provided a method of controlling a mobile terminal, the method including: receiving an external noise signal through a first contact contacting a noise microphone terminal among plug terminals; Generating a noise antiphase signal for attenuating the external noise signal; And outputting the noise reversed phase signal to the earphone through a second contact contacting a speaker terminal among the plug holders.

Specific matters of other embodiments are included in the detailed description and the drawings.

According to an embodiment of the present invention, an earphone capable of removing external noise of the earphone, a mobile terminal to which the earphone is connected, and a control method of the mobile terminal may be provided.

According to the present invention, the structure of the ear jack for noise canceling according to the embodiment of the present invention may be compatible with the standard four-pole earphone.

In addition, by changing the structure of the plug terminal of the standard four-pole earphone, it is possible to provide an earphone with a noise canceling function, a mobile terminal to which the earphone is connected, and a control method of the mobile terminal.

In addition, the earphone according to an embodiment of the present invention, by providing a fastening means for detachable with a predetermined direction with the ear jack, it is possible to implement a more sophisticated noise canceling function.

1 is a view schematically showing the configuration of a mobile terminal to which the earphone is connected according to an embodiment of the present invention.
2 is a block diagram of a mobile terminal 100 according to an embodiment of the present invention.
3A is a front perspective view of an example of a mobile terminal according to the present invention;
FIG. 3B is a rear perspective view of the portable terminal shown in FIG. 3A.
4 is a schematic block diagram of a mobile terminal 100 including an ear jack 200 accommodating a plug terminal 310, an audio processor 152, a controller 180, and a noise signal processor 182.
5 illustrates a connection configuration for an ear jack and a plug terminal of a mobile terminal according to an embodiment of the present invention.
6 shows a structure of a plug terminal of a six-pole earphone for implementing a noise canceling operation.
7 illustrates a structure of an ear jack contact into which a plug terminal of a six-pole earphone is inserted to implement a noise canceling operation.
Figure 8 shows the plug terminal of the six-pole earphone is inserted into the ear jack.
9A to 9C are views exemplarily showing a fixing means for maintaining orientation when an earphone having a noise canceling function is inserted into an ear jack according to an embodiment of the present invention.
10 illustrates an ear jack structure of an earphone and a mobile terminal according to another embodiment of the present invention.
11 is a flowchart illustrating a control method of a mobile terminal according to an embodiment of the present invention.

The foregoing objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Like numbers refer to like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, the mobile terminal 100 and the earphone 300 according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or mixed in consideration of ease of specification, and do not themselves distinguish from each other.

The mobile terminal 100 described herein includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and a MID (Mobile). Internet devices) may include all devices capable of providing an acoustic signal.

1 is a view schematically showing the configuration of a mobile terminal to which the earphone is connected according to an embodiment of the present invention.

1, the mobile terminal 100 according to an embodiment of the present invention is manufactured so that the earphone 300 is detachable to the main body of the mobile terminal 100, the main body and earphone 300 of the mobile terminal 100 It is preferable to have an interface unit 200 that can be connected to each other. Hereinafter, the interface unit 200 will be described as an ear jack 200.

The main body of the mobile terminal 100 may be classified into various types, for example, a slide type, a folder type, and the like. The main body of the mobile terminal 100 includes an ear jack 200 to which the earphone 300 is detachable. The ear jack 200 may have a predetermined number of connection terminals.

For example, when the earphone 300 is a four-pole earphone, the microphone 300 includes a microphone 330 for collecting a user's voice signal in order to support a push to talk (PTT) service. One of the connection terminals may include a microphone terminal for transmitting the user voice signal collected through the microphone 330 to the mobile terminal 100.

On the other hand, the earphone 300 according to an embodiment of the present invention, in addition to the microphone 330 for collecting the user's voice signal, the noise collecting microphones 341a and 341b for collecting external noise and converting the signal into electrical signals are further included. It may include.

The external noise is a sound that a user can hear directly, and is different from a predetermined sound signal provided through the ear jack 200 in the mobile terminal 100. The predetermined sound signal transmitted from the mobile terminal 100 may be transmitted to the user's ear together with the external noise.

Therefore, the earphone 300 according to the embodiment of the present invention includes the noise collecting microphones 341a and 341b, and the mobile terminal 100 according to the embodiment of the present invention includes the noise collecting microphone 341a. By generating a signal for canceling the external noise collected through 341b, and transmitting the signal to the earphone 300, the user can listen to the sound signal from which the external noise has been removed.

In order to generate a signal for canceling external noise in the mobile terminal 100 as described above, an external noise signal received from the noise collecting microphones 341a and 341b of the earphone 300 is transmitted to the mobile terminal 100. A connection terminal is required, and in the present invention, any one of a plurality of connection terminals of the ear plug 310 is used.

Hereinafter, each component of the mobile terminal according to an embodiment of the present invention will be described in detail.

2 is a block diagram of a mobile terminal 100 according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. The components shown in Fig. 1 are not essential, so that the mobile terminal 100 having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems that provide broadcast signals as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory unit 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 refers to a module for wireless Internet access, and the wireless Internet module 113 can be embedded in the mobile terminal 100 or externally. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

The location information module 115 is a module for checking or obtaining the location of the mobile terminal 100. The location information module 115 may obtain location information using a global navigation satellite system (GNSS). Here, the Global Positioning System (GNSS) is a term used to describe the radionavigation satellite systems in which certain types of radionavigation receivers orbiting the Earth are transmitting reference signals that can determine their position near the surface or ground surface . The Global Positioning System (GNSS) includes Global Positioning System (GPS) in the United States, Galileo in Europe, GLONASS (Global Orbiting Navigational Satelite System) in Russia, COMPASS in China and Japan QZSS (Quasi-Zenith Satellite System), which is operated by the Ministry of Land, Infrastructure and Transport.

As a representative example of the GNSS, the location information module 115 may be a Global Position System (GPS) module. The GPS module calculates information on a distance (distance) from three or more satellites to a point (object), information on a time when the distance information is measured, and then applies a trigonometric method to the calculated distance information, Dimensional position information according to latitude, longitude, and altitude with respect to a point (object) in the three-dimensional space. Further, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is also used. The GPS module continuously calculates the current position in real time, and calculates velocity information using the current position.

Referring to FIG. 2, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video call mode or the imaging mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory unit 160 or may be transmitted to the outside through the wireless communication unit 110. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 may sense the position of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence of the user, the orientation of the mobile terminal 100, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, it may be responsible for a sensing function related to whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. The sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and may include a display unit 151, an audio processing module 152, an alarm unit 153, and a haptic module 154. have.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal 100 is in a call mode, the mobile terminal 100 displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display).

Some of these displays may be transparent or light transmissive so that they can be seen through. This may be referred to as a transparent display. A typical example of the transparent display is a transparent LCD or the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

According to an implementation form of the mobile terminal 100, two or more display units 151 may exist. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another, or may be disposed integrally with one another, and may be disposed on different surfaces, respectively.

The display unit 151 is connected to a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') having a mutual layer structure It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 2, a proximity sensor 141 may be disposed in an inner region of the mobile terminal 100 surrounded by the touch screen or near the touch screen. The proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface or an object existing in the vicinity of the detection surface without mechanical contact using an electromagnetic force or an infrared ray. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the sensed proximity touch operation and proximity touch pattern may be output on the touch screen.

The audio processor 152 may output audio data received from the wireless communication unit 110 or stored in the memory unit 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The audio processor 152 outputs a sound signal related to a function performed in the mobile terminal 100 (for example, a call signal reception sound, a message reception sound, a sound signal according to reproduction of multimedia data, and the like).

The audio processor 152 may include a receiver, a speaker, a buzzer, and the like. In addition, the audio processor 152 may output sound through the ear jack 200. The user may hear a sound output by connecting the earphone 300 to the ear jack 200.

The audio processor 152 converts the voice / sound data into an audible sound through the speaker SPK, and outputs the audio / audio data such as voice received from the microphone MIC to the controller 180. The audio processor 152 may output an audio signal for notifying when the earphone 300 is connected to or disconnected from the ear jack 200. The audio signal may vary depending on menu setting or volume setting of the mobile terminal.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events generated in the mobile terminal 100 include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may also be output through the display unit 151 or the audio output module 152.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may be configured to perform various functions such as an effect of stimulation by a pin arrangement vertically moving with respect to a contact skin surface, an effect of stimulation by air spraying force or suction force through a jet opening or a suction opening, A variety of tactile effects such as an effect of stimulation through contact of an electrode, an effect of stimulation by an electrostatic force, and an effect of reproducing a cold sensation using a heat absorbing or exothermic element can be generated.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also implement the haptic effect through the muscle sense of the user's finger or arm. At least two haptic modules 154 may be provided according to the configuration of the mobile terminal 100.

The memory unit 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory unit 160 may store data related to vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory unit 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory unit 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 100 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals inputted from the cradle by a user are input to the mobile terminal. It may be a passage that is delivered to (100). Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal 100. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module (not shown) for multimedia playback. The multimedia module (not shown) may be implemented in the controller 180 or separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

Meanwhile, the mobile terminal 100 may include a noise signal processor 182. The noise signal processor 182 may generate an inverse noise signal having a phase opposite to that of the external noise signal received through the noise collecting microphones 341a and 341b.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing functions. In some cases, And may be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. Also, the software codes may be stored in the memory unit 160 and executed by the control unit 180. [

3A is a front perspective view of an example of a mobile terminal according to the present invention;

The disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the audio output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, and the interface 170 may be disposed in the terminal body, mainly the front case 101. have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 152 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132, the interface 170, and the like are disposed on the side surfaces of the front case 101 and the rear case 102.

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131 and 132.

The manipulation units 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user operates the tactile manner with a tactile feeling.

The contents input by the manipulation units 131 and 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

FIG. 3B is a rear perspective view of the portable terminal shown in FIG. 3A.

Referring to FIG. 3B, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 3A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body such that they can be rotated or popped up.

A flash 123 and a mirror 124 are further disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

The audio processor 152 ′ may be further disposed on the rear surface of the terminal body. The audio processor 152 ′ may implement a stereo function together with the sound output unit 152 (see FIG. 3A), and may be used to implement a speakerphone mode during a call.

In addition to the antenna for a call or the like, a broadcast signal reception antenna 124 may be additionally disposed on the side of the terminal body. The antenna 124 constituting a part of the broadcast receiving module 111 (see FIG. 1) may be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the mobile terminal 100 is mounted on the terminal body. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all controlled by the touch pad 135. [ Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102.

The touch pad 135 operates in association with the display unit 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have a size equal to or smaller than that of the display unit 151.

In the above, the schematic configuration of the mobile terminal according to the embodiment of the present invention has been described. Hereinafter, a schematic block configuration and plug terminal 310 of the mobile terminal 100 for performing the noise canceling function will be described with reference to FIGS. 4 and 5.

4 is a schematic block diagram of an ear jack and a mobile terminal in which a plug terminal is inserted.

Referring to FIG. 4, a substantial noise canceling function is performed in the mobile terminal 100. That is, the mobile terminal 100 implementing the noise canceling function includes an ear jack 200 accommodating the plug terminal 310, an audio processor 152, a controller 180, and a noise signal processor 182. The noise signal processor 182 may be provided separately from the controller 180 or may be present inside the controller 180.

Referring to FIG. 4, first, the earphone 300 may be connected to the ear jack 200. In this case, the plug terminal 310 may be inserted into the ear jack 200 to be electrically connected to the mobile terminal 100.

The plug terminal 310 is composed of a plurality of connection terminals, and in the case of four-pole earphones, a microphone terminal (MIC) 311, a ground terminal (GND) 312, a first speaker terminal ( The left terminal EAR-L 313 and the second speaker terminal EAR-R 314 may be formed in this order. Types and arrangements of the connection terminals of the plug terminal 310 illustrated in FIG. 4 are exemplary, but are not limited thereto.

When the plug terminal 310 of the 4-pole earphone is connected to the insertion hole of the ear jack 200, each connection terminal formed in the plug terminal 310 of the 4-pole earphone is provided on the inner surface of the insertion hole of the ear jack 200. A plurality of contacts (jack terminals) may be in contact with each other. That is, each of the contacts formed in the inner space of the insertion hole of the ear jack 200 is arranged at a position in contact with each connection terminal of the plug terminal 310 when the plug terminal 310 is inserted.

The first speaker terminal (EAR-L) 313 and the second speaker terminal (EAR-R) 314 are connected to the audio processing unit 152 through the left sound signal line 1 and the right sound signal line 2, respectively. It is connected to each terminal (EAR_L, EAR_R). The first speaker terminal EAR-L 313 and the second speaker terminal EAR-R 314 transmit a predetermined sound signal generated inside the mobile terminal 100 to the left and right speakers of the earphone 300. Provide a path to pass to.

The ground terminal MIC 312 may receive a ground signal. In addition, according to an embodiment, the ground terminal MIC 312 of the plug terminal 310 may be separated from the second speaker terminal EAR-L 313 and the microphone terminal 311 by the insulators I1 and I2, respectively. exist.

An area between the first insulator I1 and the second insulator I2 may include a noise microphone terminal that receives an external noise signal in addition to the ground terminal MIC 312. The noise microphone terminal includes a first noise microphone terminal 315 for receiving noise collected from the left noise collecting microphone 341a and a second noise microphone terminal for receiving noise collected from the right noise collecting mite 341b. 316 may include.

Therefore, when each connection terminal of the plug terminal 310 has a cylindrical shape, the ground terminal 312, the first noise microphone terminal 315, and the second noise microphone terminal 316 each face the same circumferential surface of the same cylindrical structure. Therefore, they may be spaced apart from each other by a predetermined distance. That is, any one terminal of the plug terminal of the four-pole earphone may have a shape in which three electrodes are separated.

The first noise microphone terminal 315 and the second noise microphone terminal 316 are connected to the noise signal processor 182 of the mobile terminal 100 and received from the noise collection microphones 341a and 341b of the earphone. An external noise signal is transmitted to the noise signal processor 182.

The noise signal processor 182 may generate a signal inverse to the received external noise signal. The principle of Noise Canceling uses the "offset" principle of sound waves. Therefore, an external noise signal received through the noise collecting microphones 341a and 341b attached to the earphone is opposite in phase with the same amplitude, and outputs a noise inverse phase signal having the same amplitude to the earphone of the earphone.

In addition, the microphone terminal 311 of the plug terminal 310 may provide a path for transmitting the user's voice signal into the mobile terminal 100 through the earphone microphone 330 (see FIG. 1).

On the other hand, the present invention discloses a plug terminal 310 and the ear jack 200 terminal to be compatible with the standard four-pole earphone and six-pole earphone described above. In order for the standard 4-pole earphone and the 6-pole earphone to be compatible with one mobile terminal, the structure of the plug terminal corresponding to the basic 4-pole standard earphone is changed, and according to the change of the plug terminal structure, The structure of the contact may also be provided in a modified manner.

Ear jack 200 of the mobile terminal 100 according to an embodiment of the present invention, the four contacts (microphone terminal, ground terminal, first terminal) corresponding to the standard four poles in the inner space of the insertion hole of the ear jack 200 In addition to the speaker terminal and the second speaker terminal), two additional folds may be further provided.

Hereinafter, the structure of the plug terminal 310 described above and the arrangement of the contacts in the ear jack 200 in contact with the plug terminal 310 will be described in detail with reference to FIG. 5. In addition, the connection structure between the functional blocks in the mobile terminal 100 and the contacts in the ear jack 200 to implement the noise canceling function will be described together.

5 illustrates a connection configuration for an ear jack and an ear plug of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 5, when the plug terminal 310 is inserted into the insertion hole of the ear jack 200, the plurality of connection terminals 311, 312, 313, 314, 315, and 316 formed in the plug terminal 310 have an inner space of the insertion hole of the ear jack 200. A plurality of contacts (jack terminals) 211, 212, 213, 214, 215, 216 formed in the contact can be contacted.

When the earphone to be inserted is a four-pole earphone, the plug terminal 310 includes only four connection terminals 311, 312, 313, and 314, but six jack terminals 211, 212, 213, 214, 215, and 216 may be provided in the space inside the insertion hole of the ear jack 200. have. Therefore, when the earphone 200 is a four-pole earphone, only four jack terminals 211, 212, 213, 214 of the six contacts 211, 212, 213, 214, 215, 216 provided in the inner space of the insertion hole of the ear jack 200 are in contact with the plug terminals 311, 312, 313, 314. The remaining two connection terminals 314 and 315 are not electrically connected to the plug terminal 310. Therefore, in this case, a general earphone function without noise canceling function can be implemented.

When the earphone to be inserted is a six-pole earphone, the six contacts 211, 212, 213, 214, 215, and 216 provided in the inner space of the insertion hole of the ear jack 200 may contact all six connection terminals 311, 312, 313, 314, 315, and 316 of the plug terminal 310. .

Accordingly, the earphone 300 according to an embodiment of the present invention implements a one-jack six-pole structure by separating specific electrodes of the plug terminal 310 into three electrodes that are electrically separated from each other. Noise canceling 6-pole earphones compatible with

Subsequently, a description will be given with reference to FIG. 5. When the six-pole earphone is inserted into the ear jack 200, the microphone terminal 311 of the plug terminal 310 may come into contact with the jack microphone contact (hereinafter referred to as “first contact”) 211 of the ear jack 200. Can be.

The microphone terminal MIC transmits a voice signal of the user through the earphone microphone 330 to the microphone terminal MIC of the audio processor 152 through the first contact 211. The voice signal of the user input to the audio processor 152 may be transmitted to another mobile terminal through the mobile communication module 112 (FIG. 1).

The ground terminal 312 may be disposed in a ground region between the first insulator I1 and the second insulator I2.

The ground region may be composed of one insulator region In. That is, the insulator region In is electrically insulated through the microphone terminal 311 and the first insulator I1, and is formed through the ear light terminals EAR-R 313 and the second insulator I2. It may be an electrically insulated region.

 Three electrodes may be electrically separated from each other in the insulator region In.

A first electrode of the three electrodes provided in the insulator region (In) is a ground terminal 312, and the remaining two electrodes spaced apart from the ground terminal 312 by a predetermined distance, respectively, the first noise microphone terminal ( NOISE_MIC-R) 315 and a second noise microphone terminal (NOISE_MIC-L) 316.

The first noise microphone terminal (NOISE_MIC-R) 315 and the second noise microphone terminal (NOISE_MIC-L) 316 receive external noise signals received from the noise collection microphones 341a and 341b, respectively, and noise of the ear jacks. The signal may be transferred to the noise signal processor 182 of the mobile terminal 100 through the microphone contacts 215 and 216.

The noise signal processor 182 may generate a noise reversed phase signal 180 degrees out of phase with the external noise signal and having the same amplitude.

The generated noise inverse signal is controlled by the controller 180 and is controlled by the first and second speaker terminals EAR-L 313 and EAR-R through the third and fourth contacts 213 and 214, respectively. 314 may be passed.

As the noise reversed phase signal is transmitted to the earphone speaker through the first and second speaker terminals 313 and 314, the signal that the user listens to may listen to the acoustic signal in which external noise is canceled. That is, as the external noise is canceled by the noise inverse phase signal, the noise canceling function can be implemented.

The first speaker terminals EAR-L 314 and the second speaker terminals EAR-R 313 are in contact with the contacts 214 and 215 of the ear jacks, and are reproduced in the mobile terminal 100. The media-related sound signal may be transmitted to the earphone speaker through the audio processor 152.

In the above, two microphone terminals for external noise transmission are added to a conventional four-pole earphone plug in order to transmit external noise to the mobile terminal 100, thereby canceling noise through six-pole earphones compatible with standard four-pole earphones. You have seen the implementation behavior.

Hereinafter, the structure of the plurality of contacts 211, 212, 213, 214, 215, and 216 provided in the connection terminals 311, 312, 313, 314, 315, and 316 of the plug terminal 310 and the ear jack 200 to implement the noise canceling operation will be described in more detail with reference to FIGS. 6 and 7. Let's take a look.

6 shows a structure of a plug terminal of a six-pole earphone for implementing a noise canceling operation.

Referring to FIG. 6A, the plug terminal 310 may include a plurality of connection terminals, and the plurality of connection terminals may be separated from each other by insulators I1, I2, and I3.

The plurality of connection terminals may include a microphone terminal 311, a ground terminal 312, a first speaker terminal (EAR-L) 313, a second speaker terminal (EAR-R) 314, and a first noise microphone terminal, respectively. (NOISE_MIC-R) 315 and a second noise microphone terminal (NOISE_MIC-L) 316 may be configured.

According to an embodiment, the ground terminal 312, the first noise microphone terminal (NOISE_MIC-R) 315 and the second noise microphone terminal (NOISE_MIC-L) 316 are present in one insulator region In. , May be spaced apart from each other by a predetermined distance (see FIG. 6B). That is, in the conventional 4-pole ear plug, one ground terminal may be implemented by being separated into a ground terminal and a noise microphone terminal.

In the above-described example, the first noise microphone terminal (NOISE_MIC-R) 315 and the second noise microphone terminal (NOISE_MIC-L) 316 are separated from the ground terminal among the connection terminals of the standard 4-pole ear plug. Although described, the present invention is not limited thereto.

For example, the first noise microphone terminal NOISE_MIC-R 315 and the second noise microphone terminal NOISE_MIC-L 316 are present in the same area as the microphone terminal 311 or the first speaker terminal EAR. -L) 313 or the second speaker terminal (EAR-R) 314 may be present in the same area.

In the above-described example, the first noise microphone terminal (NOISE_MIC-R) 315 and the second noise microphone terminal (NOISE_MIC-L) 316 are separated from the insulators I1, I2, and I3. By being disposed in different areas, they may be separated from each other. For example, the first noise microphone terminal NOISE_MIC-R 315 may be electrically separated from each other in the same region as the microphone terminal 311. In addition, the second noise microphone terminal NOISE_MIC-L 316 may be electrically separated from each other in the same region as the first speaker terminal EAR-L 313.

6B illustrates an exemplary structure in which three electrodes are electrically separated from each other in the same region, but the present invention is not limited thereto. That is, the distances in which the three electrodes are spaced apart from each other based on the ground terminal 312 in FIG. 6B may be identically arranged.

7 illustrates a structure of an ear jack contact into which a plug terminal of a six-pole earphone is inserted to implement a noise canceling operation.

Referring to FIG. 7A, the ear jack 200 may include a plurality of contacts 211, 212, 213, 214, 215, and 216 along the length direction in which the plug terminal 310 is inserted, and each contact may be inserted into the ear jack 200. It may be arranged at a specific position in the hole interior space. The arrangement of the respective contacts may be determined by the structure of the plug terminal 310.

The first contact 211 may be disposed at a position in contact with the microphone terminal 311 of the plug terminal 310. The second contact 212 may be disposed at a position in contact with the ground terminal 312 of the plug terminal 310. The third contact point 214 and the fourth contact point 213 may be disposed at positions in contact with the first speaker terminal 314 and the second speaker terminal 214 of the plug terminal 310, respectively.

In addition, the ear jack 200 may include jack noise microphone contacts 215 and 216 disposed at a position where the ear jack 200 may be in contact with the noise microphone terminal of the plug terminal 310 among the contacts disposed in the internal space.

Meanwhile, each terminal of the plug terminal 310 may have a cylindrical shape. Each cylindrical terminal may be separated by a predetermined insulator. Therefore, when each terminal has a cylindrical shape, each of the contacts within the ear jack 200 in contact with the terminals may exist in at least a portion of the circumferential surface of the cylinder.

FIG. 7A illustrates a state in which the jack noise microphone contacts 215 and 216 are arranged along the same circumferential surface as the second contact 212. FIG. 7B illustrates the jack noise microphone contacts 215 and. 216 is disposed along the same circumferential surface as the contact 313 in contact with the second speaker terminal 313 of the plug terminal 310.

Meanwhile, the arrangement of the jack noise microphone contacts 215 and 216 is not limited to the example illustrated in FIGS. 7A and 7B and may be modified and implemented in various forms.

Figure 8 shows the plug terminal of the six-pole earphone is inserted into the ear jack.

As the plug terminal 310 is inserted into the ear jack 200, the plurality of connection terminals 311, 312, 313, 314, 315, and 316 of the plug terminal 310 are arranged in a plurality of contacts 211, 212, 213, 214, 215, and 216. Contact with them.

As illustrated in FIG. 8, the ear jack 200 receives external noise collected through the noise collecting microphones 341a and 341b (FIG. 1) in addition to the contacts corresponding to the connection terminals of the standard four-pole earphone plugs. It further includes jack noise microphone contacts 215 and 216 for transmission to the < RTI ID = 0.0 > Accordingly, the mobile terminal according to an embodiment of the present invention can implement a compatible ear jack to both the standard four-pole earphone and the six-pole earphone that implements the noise canceling function.

9A to 9C are views exemplarily illustrating a fixing means for maintaining orientation when an earphone having a noise canceling function is inserted into an ear jack according to an embodiment of the present invention.

When the plug terminal of the predetermined six-pole earphone is rotatable without being oriented while being inserted into the ear jack 200 described in the present invention, the noise microphone terminal of the earphone and the contacting contact with the noise microphone terminal are not in contact with each other. May occur.

Therefore, it is necessary to fix the direction in which the earphone 300 for noise canceling according to an embodiment is inserted into the ear jack 200, and the plug terminal 310 is inserted into the ear jack 200 with a predetermined direction. It is necessary to fix it so that it may not rotate in arbitrary directions even after it is set. Hereinafter, the structure of the earphone which can be detachably attached to the ear jack will be described in more detail with reference to FIGS. 9A to 9C.

Referring to FIG. 9A, the earphone 300 for noise canceling according to an embodiment of the present invention includes a plug terminal 310 inserted into an ear jack 200 provided in a body (case) of the mobile terminal 100. It may include.

In addition, the earphone 300 may include a plug body 320a that supports one end of the plug terminal 310, and extends in parallel with the plug terminal 310 at one end of the plug body 320a. The plug terminal 310 may include a fixing structure 321a which is coupled to the body of the mobile terminal 100 to fix the plug terminal 310 in a state where the plug terminal 310 is inserted into the ear jack 200.

The fixing structure 321a may be configured to engage with a portion of the front or rear surface of the body. In addition, the fixing structure 321a may be configured to engage with engagement of some of the one side of the body. Accordingly, the fixing structure 321a may prevent rotational movement in a state where the plug terminal 310 is inserted into the ear jack 200.

Referring to FIG. 9B, the earphone 300 for noise canceling according to an embodiment of the present invention may include a plug terminal 310 inserted into an ear jack 200 provided in a mobile terminal body.

In addition, the earphone 300 is formed to extend in parallel with the plug terminal 310 at one end of the plug body 320b, the mobile terminal 100 in a state where the plug terminal 310 is inserted into the ear jack 200. By fastening with a predetermined fixing groove formed in the body of the, it may include a fixing structure (321b) for preventing the rotational movement of the plug terminal 100.

In addition, one end of the fixing structure 321b may include a locking protrusion 322b coupled to the fixing groove 230 provided in the body of the mobile terminal 100.

Meanwhile, referring to FIG. 9C, the earphone 300 for noise canceling according to an embodiment of the present invention may include a plug terminal 310 inserted into the ear jack 200 provided in the mobile terminal body. In addition, the coupling unit 321c may extend from one end of the plug body 320c and bind to the groove 220 formed in the body of the mobile terminal 100. Likewise, the binding part 321c may be formed to be parallel to the plug terminal 310.

10 illustrates an ear jack structure of an earphone and a mobile terminal according to another embodiment of the present invention.

Referring to FIG. 10, the length of the bezel is longer than the length L1 of the bezel in order to reduce the length L1 of the bezel between the display unit 151 of the mobile terminal 100 and the main body of the mobile terminal 100. (L2) The plug terminal 310 may substantially insert only a part of the plug terminal 310 into the ear jack.

To this end, the plug terminal 310 may be inserted into the ear jack in a state primarily embedded by the cap 340. As a result, an area of the plug terminal 310 that is not inserted into the ear jack may also be blocked by the cap 340 from the outside.

The inside of the cap 340 is provided with a contact terminal 351 to be in electrical contact with the magnetic ear jack 400, the plug terminal 310 to the ear jack 400 through the contact terminal 351. Can be detached. The ear jack 400 may be formed of a magnetic material of the inner surface of the insertion hole.

11 is a flowchart of a control method of a mobile terminal according to an embodiment of the present invention. It demonstrates with reference to FIG. 1, FIG. 4, and FIG.

First, when the ear plug 310 is connected to the ear jack 200 (S110: YES), the controller 180 can receive an external noise signal through the jack noise microphone contacts 215 and 216 of the ear jack 200. have.

In the case of the four-pole earphone, since the noise microphone terminals 315 and 316 are not provided at the plug terminal 310, the signal processing according to the standard four-pole earphone can be performed without processing the external noise signal (S150).

In the case of the six-pole earphone, the controller 180 controls the noise signal processor 182 to generate a noise inverse phase signal having a phase opposite to that of the external noise signal and having the same amplitude (S130), and outputting the earphone to the earphone speaker. It may be (S140).

According to the present invention, it has a structure of an ear jack corresponding to the six-pole earphone for noise canceling according to an embodiment of the present invention and can be compatible with the standard four-pole earphone.

In addition, by partially changing the structure of the plug terminal of the standard four-pole earphone, it is possible to provide an earphone with a noise canceling function, a mobile terminal to which the earphone is connected, and a control method of the mobile terminal.

In addition, the earphone according to an embodiment of the present invention, by providing a fastening means for detachable with a predetermined direction with the ear jack, it is possible to implement a more sophisticated noise canceling function.

In addition, in the conventional noise canceling earphone, since the noise canceling function is provided in the noise signal processing module provided in the earphone, its own separate power should be supplied to the earphone.

However, according to exemplary embodiments of the present invention, the earphone only needs to collect and transmit an external noise signal to the mobile terminal. The external terminal analyzes the external noise in order to remove the noise signal from the mobile terminal, generates a noise inverse phase signal that is opposite in phase from the noise signal, and outputs the same to the earphones. Since it is blocked, the user can listen to the sound signal from which the noise is removed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100: mobile terminal 152: audio processing unit
182: noise signal processor 200: ear jack
211 to 214: first to fourth contacts
215,216: Jack noise microphone contact 300: Earphone
310: plug terminal 311: microphone terminal
312: ground terminal 313: second speaker terminal
314: first speaker terminal
315, 316: first and second noise microphone terminals 320: plug body
330: earphone microphone
341a, 341b: microphone for noise collection

Claims (14)

A microphone for detecting external noise; And
And a plug terminal inserted into an ear jack provided in a main body of the mobile terminal.
The plug terminal,
A noise microphone terminal for transmitting the external noise signal detected from the microphone to the mobile terminal, and a speaker terminal for receiving a noise reversed phase signal corresponding to the external noise signal from the mobile terminal
Earphones comprising a. The method of claim 1, wherein the plug terminal,
A plurality of regions are separated by an insulator, and one of the plurality of regions is
Earphones comprising one of a microphone terminal, a ground terminal, one of the first and second speaker terminals, and the noise microphone terminal. The method of claim 2,
Earphones, characterized in that the one terminal is a ground terminal. The method of claim 1,
The microphone includes an ear light microphone and an ear left microphone,
The noise microphone terminal,
And a first noise microphone terminal connected to the ear light microphone and a second noise microphone terminal connected to the ear left microphone. The method of claim 1,
A plug body supporting one end of the plug terminal; And
A fixed structure extending from one end of the plug body to be parallel to the plug terminal and fixed to the plug terminal by engaging with the mobile terminal body in a state where the plug terminal is inserted into the ear jack;
Earphones further comprising a. The method of claim 5, wherein
The fixing structure is an earphone, characterized in that the engaging projection is detachably coupled to the groove formed in the mobile terminal body. body;
An ear jack formed at one side of the body and having a plug terminal including a plurality of connection terminals; And
A controller for receiving an external noise signal detected from a microphone of the earphone through a contact point in contact with a noise microphone terminal among the plug terminals, generating a noise inverse phase signal for attenuating the external noise signal, and outputting the noise signal to the earphone;
Mobile terminal comprising a. The method of claim 7, wherein the ear jack,
An insertion hole into which the connection terminal of the plug terminal is inserted; And
And a plurality of contacts provided in the insertion hole and in contact with each connection terminal of the plug terminal.
The plug terminal in contact with the plurality of contacts,
A plurality of areas are separated by an insulator, and one of the plurality of areas includes a microphone terminal, a ground terminal, any one terminal of the first and second speaker terminals, and the noise microphone terminal. Mobile terminal. The method of claim 8,
The noise microphone terminal includes a first noise microphone terminal connected to an ear light microphone and a second noise microphone terminal connected to an ear left microphone,
The contact which contacts the said noise microphone terminal,
And a first jack noise microphone contact in contact with the first noise microphone terminal and a second jack noise microphone contact in contact with the second noise microphone terminal. The method of claim 8,
The plurality of contacts,
And a fixing structure extending from one end of the plug body supporting the plug terminal is coupled to the body, the mobile terminal being provided at a position in contact with each contact terminal of the plug terminal. 11. The method of claim 10,
The body,
A mobile terminal, characterized in that the fixing groove is formed to be mated with the fixing structure. 11. The method of claim 10,
The body,
A mobile terminal, characterized in that the fixing groove is formed to engage with the fixing projection provided in the front lower portion of the fixing structure. Receiving an external noise signal through a first contact of the plug terminals in contact with the noise microphone terminal;
Generating a noise antiphase signal that is out of phase with the external noise signal; And
Outputting the noise inverse phase signal to the earphone speaker through a second contact contacting a speaker terminal among the plug terminals;
Control method of a mobile terminal comprising a. The method of claim 13,
The earphone is a control method of a mobile terminal, characterized in that any one of four-pole earphone or six-pole earphone.

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