KR20130085117A - Mobile terminal - Google Patents

Abstract

PURPOSE: A mobile terminal is provided to maintain the security of a local communication unit by attaching a structure for shielding one side of the local communication unit to the mobile terminal. CONSTITUTION: A local communication unit (200) is located between a front case and a rear case to perform a local communication with an external transceiver. A signal reduction unit (300) is located between the local communication unit and the rear case. The signal reduction unit shields the cross section of the local communication unit. The signal reduction unit blocks or reduces a communication signal. The shielding area of the signal reduction unit against the local communication unit is controlled.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal, and more particularly, to a physical security method for near field communication.

A terminal can be divided into a mobile / portable terminal and a stationary terminal depending on whether the terminal is movable or not. The mobile terminal may be further classified into a handheld terminal and a vehicle mount terminal according to whether a user can directly carry it.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

Recently, various solutions for using a mobile terminal as a mobile payment method have been proposed. At present, attempts to utilize NFC (Near Field Communication) as a means of communication for establishing a mobile payment means are actively in progress. In the case of NFC communication, data can be transmitted between terminals at a close distance of about 10 cm.

However, when NFC is used by e-commerce or e-payment means, the range of security attacks on NFC is expected to gradually increase. In the case of NFC, although the communication range is short, data can be reached over longer distances if an attacker intentionally increases the strength of the RF signal or improves the performance of the NFC receiver. That is, a security problem of NFC communication may be an issue such as mobile payment proceeding through NFC communication while the user does not predict it.

The present invention, unlike the existing, is to provide a mobile terminal for maintaining the security of the local area by attaching a structure covering one side of the local area communication.

Specifically, the present invention is to provide a mobile terminal for controlling the short-range communication can be performed only if the user desires.

In addition, the present invention is to provide a mobile terminal capable of maintaining security by intentionally reducing the short-range communication performance when not using the short-range communication unit.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

Mobile terminal according to an embodiment of the present invention for realizing the above object, the short-range communication unit located between the front case and the rear case for performing short-range communication with the external transceiver; And a signal attenuator disposed between the short range communication unit and the rear case and shielding a cross section of the short range communication unit to block or attenuate a communication signal transmitted from the short range communication unit or transmitted to the short range communication unit. In this case, the shielding area of the signal attenuator for the short range communication unit may be adjustable.

By adjusting the shielding area for the near field communication unit, when the near field communication is not used, the performance of the near field communication is intentionally degraded, and the security of the mobile terminal can be maintained.

The technical solutions obtained by the present invention are not limited to the above-mentioned solutions, and other solutions not mentioned are clearly described to those skilled in the art from the following description. It can be understood.

The mobile terminal according to at least one embodiment of the present invention configured as described above may improve the security of the mobile terminal using short-range communication.

In addition, when the mobile terminal according to at least one embodiment of the present invention does not use the short-range communication, it is possible to block the short-range communication is performed, thereby improving the security of the mobile terminal.

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

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
2A and 2B are front and rear perspective views, respectively, of a mobile terminal according to the present invention;
3 is an exploded perspective view of a mobile terminal according to an embodiment of the present invention.
4 is a block diagram of a short-range communication unit according to the present invention.
5 is a perspective view of a signal attenuation unit according to an embodiment of the present invention.
6 is an exploded perspective view of a signal attenuation unit according to an embodiment of the present invention.
7 is a front view of the blade shown in FIG.
8 is an exemplary view for comparing the cross-sectional area of the fixing portion, the area of the circle formed by coupling the grooves of the upper and lower plates, the cross-sectional area of the neck.
9A-9C are cross-sectional views of the blade center portion.
10 is an exploded perspective view of the angle adjustment unit.
11A and 11B are views for explaining that the shielding area of the center portion of the near field communication unit increases as the control unit slides back and forth.
12 is a perspective view of a signal attenuation unit according to an embodiment of the present invention.
13 is an exploded perspective view of a signal attenuation unit according to an embodiment of the present invention.
14A and 14B are exemplary views for explaining the movement of the second layer on the first layer by manipulating the adjuster;
15A and 15B are cross-sectional views of the first frame and the second frame shown in FIGS. 14A and 14B, respectively.
16 is a perspective view of a signal attenuation unit according to an embodiment of the present invention.
17 is an exploded perspective view of a signal attenuation unit according to an embodiment of the present invention.
18A and 18B are exemplified diagrams for explaining moving the shielding plate by manipulating the adjuster of FIG. 17;
19A and 19B show a slide type mobile terminal.
20A and 20B are diagrams for explaining that a short range communication unit and a signal attenuation unit are attached to a slide type mobile terminal.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the 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 have distinct meanings or roles.

The mobile terminal 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), a tablet (tablet PC), navigation, and the like. This may be included. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as digital TV desktop computers as well as mobile terminals.

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

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal 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, and a local communication module 114.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

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).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems 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 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. As a mobile communication technology, Global System for Mobile communications (GSM), Code Division Multiple Access (CDMA), WCDMA, Long Term Evolution (LTE), and the like may be used.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. Wireless Internet technologies include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), HSDPA +, High Speed Packet Access (HSPA), HSPA +, Global System for Mobile communications (GSM), Code Division Multiple Access (CDMA), WCDMA, Long Term Evolution (LTE), and the like can be used.

In view of the fact that the wireless Internet access by Wibro, HSDPA, HSPA, GSM, CDMA, WCDMA, LTE, etc. is made through a mobile communication network, the wireless Internet module 113 for performing a wireless Internet access through the mobile communication network is the mobile terminal. It may be understood as a kind of communication module 112.

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, NFC (Near Field Communication), etc. can be used as short range communication technology have.

Referring to FIG. 1, 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 photographing 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 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

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 senses the current state 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 or absence of user contact, the orientation of the mobile terminal, 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, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to visual, auditory or tactile senses, and may include a display unit 151, a sound output module 152, an alarm unit 153, and the like.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. 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 (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and 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.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. 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.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. 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.

The proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. 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 (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 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 sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal 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 be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The memory 160 may store a program for processing and controlling the controller 180 and may temporarily store input / output data (for example, a phone book, a message, an audio, a still image, a video, etc.). It can also perform a function. The memory 160 may also store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia). In addition, the memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 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), a RAM (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 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 supplies power to each component in the mobile terminal 100 or transmits data to the 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.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 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.

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 include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

2A is a perspective view of an example of a mobile terminal or a mobile terminal according to the present invention.

The disclosed mobile terminal 100 has 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 sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the front body 101 have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 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 and the interface 170 may be 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 portable terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents inputted by the first or second operation unit 131 or 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. 2B is a rear perspective view of the portable terminal shown in FIG. 2A.

Referring to FIG. 2B, 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. 2A), 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 so as to be rotatable or pop-upable.

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 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the speakerphone mode during a call.

In addition to the antenna for talking and the like, a broadcast signal receiving antenna 116 may be further disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module 111 (see FIG. 1), can be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the portable 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 be formed with a rail such that the adjustment unit 338 associated with the signal attenuation unit 300 to be described later slides. The adjusting unit 338 may slide along the rail formed at the rear case 102. One surface of the adjusting part may have an uneven surface or may be embossed to prevent slipping.

3 is an exploded perspective view of a mobile terminal according to an embodiment of the present invention. Referring to FIG. 3, the mobile terminal 100 according to the present invention includes a front case 101 and a rear surrounding a short range communication unit 200, a signal attenuator 300, a short range communication unit 200, and a signal attenuator 300. It may include a case 102. The local area communication unit 200 is for performing local area communication with an external transceiver, and may include a processor 210 and an antenna 220 as shown in FIG. 4. The processor 210 serves to process a transmission signal to an external transceiver or a received signal from an external transceiver, and the antenna 220 radiates a modulated signal of the processor or receives a modulated signal from the outside. . The near field communication unit 200 according to the present invention may be for performing near field communication using a magnetic field (for example, near field communication (NFC)).

The short range communication unit 200 may transmit data by radiating a magnetic field to the surroundings, and may receive data based on an induced current formed through electromagnetic induction of the magnetic field radiated from the outside.

In general, the near field communication unit 200 may be located at the front case 101 and the rear case 102, and more specifically, may be located at the substrate 10 and the rear case 102 of the mobile terminal 100. (Here, the rear case 102 is a concept including a battery case of the mobile terminal 100). In order to minimize the influence of the magnetic field radiated from the near field communication unit 200 to the substrate 10, a cover (not shown) may be disposed between the near field communication unit 200 and the substrate 10 to shield the magnetic field. Can be.

According to another embodiment of the present invention, in order to minimize the influence of the magnetic field radiated from the near field communication unit 200 to the substrate 10, a magnetic shielding paint may be applied to the substrate 10.

The signal attenuator 300 is to shield the magnetic field radiated from the short range communication unit 200. The signal attenuator 300 may be positioned in a direction in which the near field communication unit 200 radiates a magnetic field to attenuate the strength of the magnetic field emitted from the near field communication unit 200. In detail, the signal attenuator 300 may be located between the short range communication unit 200 and the rear case 102.

The signal attenuator 300 serves as a screen for all or a part of the short range communication unit 200. The shielding area of the short circuit communication unit 200 of the signal attenuator 300 may be adjusted by external manipulation. .

Hereinafter, the mobile terminal 100 according to the present invention will be described in detail based on various embodiments of the signal attenuation unit 300.

≪ Example 1 >

5 and 6 are a perspective view and an exploded perspective view of the signal attenuator according to an embodiment of the present invention, respectively. 5 and 6, the signal attenuator 300 may include a fixed frame 310, a blade 320, and an angle adjuster 330.

The fixed frame 310 is for positioning the blade 320 fixed. 5 and 6, the fixing frame 310 may include an upper plate 312 and a lower plate 314 to fix the blade. Both sides of the upper plate 312 and the lower plate 314 may be formed with an insertion groove 316 for inserting the blade.

The blade 320 may be fixedly positioned in the insertion groove 316 formed in the upper plate 312 and the lower plate 314. The blade 320 may be in a rotatable state in the fixed frame 310. 7 is a front view of the blade shown in FIG. As shown in FIG. 7, the blade 320 is inserted into the fixing groove 316 formed in the fixing portion 322, the upper plate 312, and the lower plate 314 that fixes the blade 320 inside the fixing frame 310. It may include a neck portion 324 to be seated, a central portion 326 serving as a screen of the near field communication unit 320, and a protrusion 328 into which the pinion gear 332 to be described below is inserted.

The fixing part 322 is located at both sides of the center part 326. The cross-sectional area of the fixing part 322 is larger than the area of the circle formed by the insertion grooves 326 of the upper plate 312 and the lower plate 314. For this reason, when the neck 324 is inserted into the insertion groove 316 of the fixing frame 310, the blade 320 can be fixed position without moving from side to side.

8 is an exemplary view for comparing the cross-sectional area of the fixing portion, the area of the circle formed by coupling the grooves of the upper plate and the lower plate, the cross-sectional area of the neck. As shown in Figure 8, the cross-sectional area (A) of the fixing portion 322 is larger than the area (A ') of the circle formed by the coupling groove 316 of the upper plate 312 and the lower plate 314, neck The cross-sectional area A ″ of 324 is equal to or smaller than the area A ′ of the circle in which the insertion grooves 316 of the upper plate 312 and the lower plate 314 are formed. The neck 324 may be seated in the insertion groove 316 formed in the upper plate 312 and the lower plate 314.

The central unit 326 serves as a screen for the near field communication unit 200. In detail, the central unit 326 may form an induced current based on a magnetic field generated from the antenna 220 of the short range communication unit 200 (or a magnetic field directed toward the antenna 220). When an induced current occurs in the central portion 326, the magnetic field generated by the induced current is reversed from the magnetic field radiated from the antenna 220 (Rentz's law), and thus radiated from the antenna 220 (or the antenna 220). To reduce the intensity of the magnetic field.

The blade 320 may be in contact with the fixed frame 310 to form a closed circuit. By forming a closed circuit with the fixed frame 310, an induced current may be formed in the blade 320 and the fixed frame 310. To form an induction current, the blade 320 and the fixed frame 310 may be a metal having high electrical conductivity capable of electromagnetic induction. For example, the fixed frame 310 and the blade 320 may be a metal such as silver, copper, aluminum, but is not limited thereto.

9A and 9C are cross-sectional views of the blade center portion. Referring to FIG. 9A, the central portion 326 may have a narrow left and right width and a large vertical length. As shown in FIG. 9A, when the central portion 326 is upright, the gap d1 between the central portions 326 is wide, so that the shielding area for the short-range communication portion 200 of the central portion 326 has a minimum value. Then, when the blade 320 rotates, as shown in FIGS. 9B and 9C, the gaps d2 and d3 between the central portions 326 become narrower, and the shielding area for the near field communication unit 200 becomes larger. do.

When the shielding area for the near field communication unit 200 increases, the area of the magnetic field radiated from the antenna 220 of the near field communication unit 200 (or received by the antenna 220) increases, and thus occurs in the center unit 326. The amount of induced current can also increase gradually. As the induced current increases, the intensity of the magnetic field caused by the induced current also increases, so that the intensity of the magnetic field radiated from the antenna 220 (or directed toward the antenna 220) gradually decreases. As a result, as the shielding area of the near field communication unit 200 increases, the near field communication performance will gradually decrease.

The angle adjuster 330 adjusts the angle of the blade 320 and thereby controls the shielding area for the near field communication unit 200 to be adjusted. 10 is an exploded perspective view of the angle adjustment unit. Referring to FIG. 10, the angle adjusting unit 300 may include a pinion gear 332 coupled to the protrusion 328 of the blade 320, a rack 334 for rotating the pinion gear 332, and a rack ( And an arm portion 336 connecting the rack 334 and the adjuster 338 to move the 334.

11A and 11B are diagrams for explaining that the shielding area of the center portion of the near field communication unit increases as the adjuster slides back and forth.

As shown in Fig. 11A, the adjusting portion 338 may be connected to the rack 334 through the arm portion 336. With the central portion 326 upright as shown in Fig. 11A, the position shown in Fig. 11B. When the furnace control unit 338 is slid, the rack 334 also moves in the same direction as the moving direction of the control unit 338.

As the rack 334 moves, the pinion gear 332 meshes with the rack 334, and as the pinion gear 332 rotates, the blade 320 also rotates. As the blade 320 rotates, as described with reference to FIG. 8, the gap between the central portions 326 is reduced, thereby increasing the shielding area for the short range communication unit 200.

On the contrary, sliding the adjuster 338 from the position of FIG. 11B to the position of FIG. 11A causes the pinion gear 332 to rotate, thereby widening the gap between the center portions 326, thereby shielding the near field communication unit 200. The area is reduced.

As such, the shielding area of the signal attenuator 300 with respect to the near field communication unit 200 may be adjusted by external manipulation. As the shielding area for the near field communication unit 200 is adjusted, the degree of attenuation of the magnetic field radiated from the antenna 220 (or received by the antenna 220) may be adjusted.

Accordingly, when the user intends to use near field communication, the shielding area for the near field communication unit 200 is kept to a minimum, and when the near field communication is not used, the shielding area for the near field communication unit 200 is kept to the maximum. Can be controlled.

Although the fixing part 322 is described as being positioned at both sides of the blade 320 in the above-described embodiment, the fixing part 322 is not necessarily located at both sides of the blade 320. The fixing part 322 may not be present on the side where the protrusion 328 is formed. In this case, the pinion gear 322 inserted into the protrusion 328 may serve as a fixing part.

Furthermore, in the above-described embodiment, the blade 200 does not necessarily need to include the fixing part 322. Although the fixing part 322 is not included, the center part 326 may allow the blade 200 to be fixed in the fixing frame 310.

<Example 2>

12 and 13 are a perspective view and an exploded perspective view of the signal attenuator according to an embodiment of the present invention, respectively. 12 and 13, the signal attenuator 300 includes a position controller 490 for slidingly moving the first layer 400, the second layer 450, and the second layer 450.

As shown in FIG. 13, the first layer 400 includes first fixing frames 410 and 420 and a plurality of first frames 430 positioned inside the first fixing frame. The first fixing frame may be divided into an upper plate 410 and a lower plate 420, and an insertion groove 412 for seating the plurality of first frames 430 may be formed in the upper plate 410 and the lower plate 420. Can be. The first frame 430 may be seated in the insertion groove 412 formed in the upper plate 410 and the lower plate 420 of the first fixed frame, and may serve as a screen of the near field communication unit 200. In this case, the first frame 430 may include fixing parts 432 for fixing the first frame 430 inside the fixing frame at both ends. As described above with reference to FIG. 7, the fixing part 432 may allow the first frame 430 to be fixedly positioned inside the first fixing frame.

As described with reference to FIGS. 5 and 11, the first frame 430 may form an induced current based on a magnetic field radiated from the antenna 220 (or directed toward the antenna 220).

In order to form an induced current, the first frame 430 and the first fixed frame may form a closed circuit. The first frame 430 and the first fixing frame may be made of metal such as silver, copper, aluminum, etc., which have high electrical conductivity, but are not limited thereto.

The second layer 450 may be positioned at the lower end of the first layer 400, and the second layer 450 may slide along the first layer 400. A protrusion 422 protruding along the rail groove 464 may be formed in the lower plate 420 of the first fixing frame so that the second layer 450 can easily slide.

As shown in FIG. 13, the second layer 450 basically has the same configuration and shape as the first layer 400. The second layer 450 may include second fixing frames 460 and 470 and a plurality of second frames 480 positioned inside the second fixing frame.

At this time, the rail groove 464 that can slide along the protrusion 422 is provided on the upper plate of the second fixing frame 460 so that the second layer 450 can easily slide on the first layer 400. Can be formed.

As shown in FIG. 13, the position adjusting unit 490 includes an adjusting unit 494 and a second fixing frame (specifically, a top plate 460 of the second fixing frame) of the adjusting unit 494 and the second layer 450. ) Or the lower plate 470 may be provided.

14A and 14B are exemplary views for explaining the movement of the second layer on the first layer by manipulating the adjusting unit. 15A and 15B are cross-sectional views of the first frame and the second frame shown in FIGS. 14A and 14B, respectively.

When the adjuster 494 is placed at the position shown in FIG. 14A, the first frame 430 and the second frame 480 are placed at the same position. Accordingly, as shown in FIG. 15A, the shielding area of the short range communication unit 200 of the first frame 430 and the second frame 480 may be minimized, as shown in FIG. 15A.

Thereafter, when the adjusting unit 494 is slid to the position of FIG. 14B, the second layer 450 also moves in the sliding direction of the adjusting unit 494. When the second layer 450 moves, the second frame 480 is positioned between the first frames 430, so that the first frame 430 and the second frame 480 are illustrated in FIG. 15B. The shielding area for the near field communication unit 200 may be the maximum. As the shielding area increases, more induced currents are generated through the first layer 400 and the second layer 450, causing the magnetic field to radiate from the near field communication unit 200 (or to the near field communication unit 200). You can reduce the intensity even more.

That is, the shielding area for the near field communication unit 200 may be adjusted by placing the second frame 480 of the second layer 450 between the first frame 430, and thus, the antenna 220. The degree of attenuation of the magnetic field strength radiated from (or received by the antenna 220) can be adjusted.

Accordingly, when the user intends to use near field communication, the shielding area for the near field communication unit 200 is kept to a minimum, and when the near field communication is not used, the shielding area for the near field communication unit 200 is kept to the maximum. Can be controlled.

The above-described second layer 450 may be located at the top of the first layer 400 (ie, between the first layer 400 and the rear case), and at the bottom of the first layer 400 (ie, the first layer). It may be located between the layer 400 and the near field communication unit 200.

In addition, in the above-described embodiment, the protrusion 422 is formed in the first layer 400 and the rail groove 464 is formed in the second layer 450, but is not necessarily limited thereto. On the contrary, the rail groove 464 may be formed in the first layer 400 and the protrusion 422 may be formed in the second layer 450. That is, one of the first fixing frame 410 and the second fixing frame 460 has a 凹 -shaped rail groove 464, the other has a 凸 -shaped protrusion, the first layer 400 And the sliding between the second layer 450 may occur easily.

In this embodiment, any one of the first layer 400 and the second layer 450 may be coupled to the substrate 10, and the other may be coupled to the rear case 102, but is not limited thereto.

<Example 3>

16 and 17 are a perspective view and an exploded perspective view of the signal attenuation unit, respectively, according to an embodiment of the present invention. Referring to FIGS. 16 and 17, the signal attenuation unit 300 has an area for entering and exiting the fixed frame 510 having the entry and exit opening 514, the entry and exit opening 514, and shielding the near field communication unit 200 according to the entry and exit degree. The adjustable shielding plate 520 and the position adjusting portion 530 for adjusting the position of the shielding plate 520 is included.

As shown in FIG. 17, the fixing frame 510 may be divided into an upper plate 512 and a lower plate 516. In this case, while the upper plate 512 and the lower plate 516 are coupled to each other, an opening 514 through which the shielding plate 520 may enter and exit may be formed on one surface of the fixing frame 510. One end of the shielding plate 520 may be connected to the adjusting unit 534 through the arm unit 532 of the position adjusting unit 530. The shielding plate 520 may pass through the opening 514 formed in the fixed frame 510, and serve as a screen of the near field communication unit (specifically, the antenna 220 of the near field communication unit 200). Through this, the shielding plate 520 serves to shield the magnetic field radiated from the near field communication unit 200 (or toward the near field communication unit 200). In this case, the locking jaw 522 may be formed at one end of the shielding plate 520. Through the locking jaw 522, the shielding plate 520 may move inside the fixing frame 510 without departing from the fixing frame 510. In order to form an induced current in the shield plate 520, the shield plate 520 and the fixed frame 510 are preferably in contact with each other. As the shielding plate 520 and the fixed frame 510 are in contact with each other to form a closed circuit, an induced current flowing through the shielding plate 520 and the fixed frame 510 may be formed. The shielding plate 520 may be in contact with the fixing frame 510 at the opening 516, or may be in contact with the fixing frame 510 through the locking jaw 522.

18A and 18B are exemplary diagrams for explaining moving the shielding plate by manipulating the adjusting portion of FIG. 17. When the adjuster 534 slides from the position shown in FIG. 18A to the position shown in FIG. 18B, the shield plate 520 also moves along the adjuster 534. Accordingly, since the shielding area of the short-range communication unit 200 of the shielding plate 520 is increased, more induction current may be formed along the shielding plate 520.

By doing so, the user maintains the shielded area for the short-range communication unit 200 when the short-range communication unit 200 is to be kept to a minimum, and maintains the shielded area for the short-range communication unit 200 when the short-range communication is not used. By controlling to enable, it is possible to determine whether to use near field communication.

<Example 4>

In the above embodiments, the present invention has been described assuming that the mobile terminal is a bar type, but the mobile terminal according to the present invention is not necessarily a bar type. The present invention is not limited thereto, and is applicable to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be movable relative to each other.

19A and 19B are slide type mobile terminals. As shown in FIG. 19A, the slide type mobile terminal includes a main body 30 and a slide unit 20 that can slide up or slide down along the main body 30.

20A and 20B are diagrams for explaining that the near field communication unit and the signal attenuation unit are attached to the slide type mobile terminal. Referring to FIG. 20A, a short range communication unit 200 and a signal attenuation unit 300 may be attached to each of the opposing surfaces of the main body 30 and the slide unit 20. In FIG. 20A, the signal attenuation unit 300 is attached to the main body 30, and the short-range communication unit 200 is attached to the slide unit 20, but is not limited thereto. On the contrary, the short range communication unit 200 may be attached to the main body 30, and the signal attenuation unit 300 may be attached to the slide unit 20.

Before the slide unit 20 slides up as shown in FIG. 20A, the short range communication unit 200 and the signal attenuator 300 face each other, and thus are radiated from the short range communication unit 200 (or directed to the short range communication unit 200). The magnetic field is shielded by the signal attenuation unit 300, thereby preventing short-range communication.

Subsequently, when the slide unit 20 slides up as shown in FIG. 20B, the signal attenuator 300 may not serve as a screen for the local area communication unit 200, and thus radiates from the local area communication unit 200 (or the local area communication unit ( Magnetic field destined for 200) cannot be attenuated, and short-range communication can be smoothly disrupted.

That is, the user can control whether to use short-range communication by sliding up and down the slide unit 20.

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

100: mobile terminal
101: front case
102: rear case
200: near field communication unit
210: processor
220: antenna
300: signal attenuation unit
310: fixed frame
320: blade
330: angle adjuster
400: first layer
450: second layer
490: position adjustment unit
510: fixed frame
520: shielding plate
530: position adjustment unit

Claims (11)

A short range communication unit positioned between the front case and the rear case to perform short range communication with an external transceiver; And
Located between the near field communication unit and the rear case,
A signal attenuating unit shielding a cross section of the short range communication unit to block or attenuate a communication signal transmitted from the short range communication unit or transmitted to the short range communication unit,
The shielding area of the signal attenuator for the near field communication unit is adjustable. The method of claim 1, wherein the signal attenuation unit,
A fixed frame;
A plurality of blades connected to the fixed frame and adjusted to shield an area of the short range communication unit according to an angle; And
Angle adjuster for adjusting the angle of the blade
A mobile terminal comprising a. The method of claim 2, wherein the blade,
A fixing part for fixing and positioning the blade inside the fixing frame;
A neck coupled to the fixed frame;
A central unit shielding the short range communication unit;
A mobile terminal comprising a. The method of claim 3, wherein the angle adjustment unit,
A pinion gear connected to the blade;
A rack engaged with the pinion gear; And
Adjusting unit for adjusting the position of the rack, so that the angle of the central portion is changed; And
Arm portion connecting the rack and the control unit
A mobile terminal comprising a. The method of claim 1, wherein the signal attenuation unit,
A first layer including a first fixed frame and a plurality of first frames spaced apart from each other at predetermined intervals and fixed to the first fixed frame;
Located above or below the first layer,
A second layer including a second fixed frame and a plurality of second frames spaced apart from each other at predetermined intervals and fixed to the second fixed frame; And
Position adjusting unit for slidingly moving the second layer so that the second frame is located between the first frames.
. The method of claim 5, wherein
Rail grooves are formed on one surface of the opposite surfaces of the first layer and the second layer,
Mobile terminal, characterized in that the protrusion formed to move along the rail groove on the other side. The method of claim 1, wherein the signal attenuation unit,
A fixed frame having an entrance and exit opening;
A shielding plate that enters and exits the entrance and exit opening, and the area of shielding the short-range communication unit is adjusted according to an entrance and exit degree; And
Position adjusting unit for adjusting the position of the shielding surface
. The method of claim 7, wherein
Mobile terminal, characterized in that the locking step is formed on one end of the shield plate. The method of claim 7, wherein
The shielding plate and the fixed frame is a mobile terminal, characterized in that the constant contact state is maintained. The method of claim 1, wherein the short-range communication unit
A mobile terminal, characterized in that performing Near Field Communication (NFC) communication. 11. The method of claim 10,
The communication signal propagates based on a magnetic field.

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