KR101650384B1 - Mobile terminal - Google Patents

Abstract

The present invention relates to a portable terminal. More particularly, the present invention relates to a portable terminal capable of minimizing electromagnetic interactions that may occur between a portable terminal and a hearing aid of a user of a hearing aid, thereby ensuring compatibility with a hearing aid.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a portable terminal capable of minimizing electromagnetic interactions that may occur between a portable terminal and a hearing aid of a user of a hearing aid, thereby ensuring compatibility with a hearing aid.

The present invention relates to a portable terminal. A terminal can be divided into a mobile terminal (portable / mobile terminal) and a stationary terminal according to its portability.

Such a portable terminal has various functions, for example, a multimedia device (multimedia player) having a complex function of photographing or photographing a moving picture, playing music or a moving picture file, receiving a game, .

Generally, a portable terminal is provided with an audio output module on its upper part to output voice or sound information to a user of the portable terminal, and a microphone is provided below the portable terminal to receive voice of the user of the portable terminal. Portable handsets sold in some countries have recently been forced to Hearing Aid Compatibility (HAC) certification and are expanding the scope of certification.

Conventionally, some portable terminals have a method of securing compatibility (HAC: Hearing Aid Compatibility) by adjusting the amount of current induced in the sound output module through adjustment of a grounding area in order to obtain HAC (Hearing Aid Compatibility) Was used.

However, there is a limitation in the method of controlling the amount of current induced by the speaker through the adjustment of the grounding area, and a method of securing Hearing Aid Compatibility (HAC) is also required in a bar type or slide type portable terminal .

An object of the present invention is to provide a portable terminal capable of minimizing electromagnetic interaction that may occur between a portable terminal and a hearing aid of a user of a hearing aid, thereby ensuring compatibility of a hearing aid.

According to an aspect of the present invention, there is provided a sound output module including a sound output module, a circuit board mounted with the sound output module, an antenna connection part provided at a position spaced apart from the sound output module, And an antenna module detachably mounted on the circuit board, the antenna connection portion of the circuit board including a feeding connection terminal, a ground connection terminal, and a dummy connection terminal, And the pattern portion of the module includes a feeding branching pattern, a grounding branching pattern, and a dummy branching pattern that are branched so as to be connected to the feeding connection terminal, the grounding connection terminal, and the dummy connection terminal, respectively.

The acoustic output module may be provided on the circuit board, and the antenna connection unit may be provided on a lower portion of the circuit board.

Here, the feeding branch pattern may be branched between the dummy branch pattern and the ground branch pattern.

The dummy connection terminal, the feeding connection terminal, and the ground connection terminal may be disposed horizontally spaced below the circuit board.

In this case, the distance between the feeding connection terminal and the dummy connection terminal may be 0.5 mm or more and 2 mm or less.

The feeding connection terminal may be provided between the dummy connection terminal and the ground connection terminal.

Further, the dummy connection terminal may be disposed at a position closest to the vertical bisector of the circuit board.

The feeding branching pattern, the grounding branching pattern, and the dummy branching pattern of the pattern portion of the antenna module are branched below the pattern portion and then bent to the back surface of the carrier to connect the feeding connection terminal, the ground connection terminal, Terminal.

The pattern portion of the antenna module may include an inverted F-type antenna pattern.

According to the portable terminal of the present invention, electromagnetic interaction that may occur between the portable terminal and the hearing aid of the user of the hearing aid can be minimized.

In addition, the portable terminal according to the present invention minimizes electromagnetic interaction that may occur between the portable terminal and the hearing aid of the user of the hearing aid, thereby facilitating Hearing Aid Compatibility (HAC) certification.

1 is a block diagram of a portable terminal according to an embodiment of the present invention.
2A is a perspective view of a portable terminal or a portable terminal according to an embodiment of the present invention.
FIG. 2B is a rear perspective view of the portable terminal shown in FIG. 2A.
FIG. 3 illustrates a circuit board of a portable terminal according to an embodiment of the present invention. FIG. 4 illustrates a state where an antenna module is mounted on a circuit board of a portable terminal according to the present invention. And a pattern portion of the antenna module according to the present invention.
6 illustrates an embodiment of an antenna module of a portable terminal according to the present invention.
FIG. 7 shows a result of a comparison test for determining whether or not the portable terminal according to the present invention is compatible with a hearing aid.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like reference numerals designate like elements throughout the specification.

The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The portable terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a portable terminal.

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

The portable 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 portable terminal having more or less components than those shown in Fig. 1 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 portable terminal 100 and the wireless communication system or between the portable terminal 100 and the network in which the portable 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 broadcast signals 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, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) 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 (DVF-H) 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.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or enclosed in the portable terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

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 a short range communication technology.

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

The modules constituting each of the wireless communication units 110 may be embodied in the form of an antenna module 3000 (see FIG. 4) described later. The antenna module 3000 will be described later in detail.

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 communication 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 / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the portable terminal 100 such as the opening and closing state of the portable terminal 100, the position of the portable terminal 100, the presence or absence of user contact, the orientation of the portable terminal, And generates a sensing signal for controlling the operation of the portable terminal 100. For example, when the portable terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed in the portable terminal 100. For example, when the portable terminal is in the call mode, a UI (User Interface) or GUI (Graphic User Interface) related to the call is displayed. When the portable terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received image or the UI and the 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 portable terminal 100. For example, in the portable terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form 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. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the portable terminal or the proximity of 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 type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type 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 recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch" The act of actually touching the pointer on the screen is called "contact touch. &Quot; 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 detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio 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 mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, 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 portable 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 portable terminal 100. Examples of events occurring in the portable terminal include receiving a call signal, receiving a message, inputting a key signal, and touch input. 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 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 the vibration generated by the hit 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 include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory 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 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 portable 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 the external devices connected to the portable terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the portable terminal 100 or allows data in the portable terminal 100 to be transmitted 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 usage right of the portable 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 portable 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 external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

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 other electronic units for performing other functions. In some cases, 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. The software codes are stored in the memory 160 and can be executed by the control unit 180. [

2A is a perspective view of a portable terminal or a portable terminal related to the present invention as viewed from the front.

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 of the portable terminal includes a casing forming an appearance. In this embodiment, the case can be divided into a front case 101 and a rear case 102, and can be further subdivided into more cases. Further, at least one intermediate case may be additionally disposed between the front case 101 and the rear case 102.

Various electronic components are embedded in the space formed between the cases. The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

The case may include a display unit 151, an audio output unit 152, a camera 121, user input units 130/131 and 132, a microphone 122, an interface unit 170, and the like.

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 1000 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 additionally 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 module 152 'may be additionally disposed on the rear side of the terminal body. The sound output module 152 'may implement the stereo function together with the sound output module 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 reception antenna 116 may be additionally disposed on the side of the terminal body. The broadcast signal receiving 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 built in the terminal body or may be 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 as well.

The touch pad 135 operates in correlation with the display portion 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.

FIG. 3 illustrates one embodiment of a circuit board 2000 of a portable terminal according to the present invention. FIG. 4 illustrates a state in which an antenna module 3000 is mounted on a circuit board 2000 of a portable terminal according to the present invention. And FIG. 5 is a plan view showing an expanded pattern part of the antenna module according to the present invention.

The present invention includes an antenna connection part 2200 provided with an acoustic output module 152 and the acoustic output module 152 and spaced apart from the acoustic output module 152 and having a plurality of antenna connection terminals And an antenna module 3000 detachably mounted on the circuit board 2000 and including a pattern portion 3100 and a carrier 3200 provided with a pattern portion, The antenna connection portion 2200 of the antenna module 2000 includes a feeding connection terminal 2200, a ground connection terminal 2210 and a dummy connection terminal 2230. The pattern portion 3100 of the antenna module 3000 is connected to the feeding connection A grounding branching pattern 3130 and a dummy branching pattern 3110 which are branched to be connected to the ground terminal 2220, the ground connection terminal 2210 and the dummy connection terminal 2210, respectively, Thereby providing a portable terminal.

The circuit board 2000 is connected to the circuit board 2000 at a place where various components or integrated circuits constituting the control unit 180, the wireless communication unit 110, the A / V input unit 120, the output unit 150, And may be composed of a PCB substrate or the like.

Description of various components constituting the control unit 180, the wireless communication unit 110, the A / V input unit 120, the output unit 150, and the memory 160 will be omitted.

The circuit board 2000 may be provided with an antenna connection part 2200 for electrically connecting an antenna module (not shown). The antenna connection part 2200 may be provided. The antenna connection unit 2200 may include a plurality of connection terminals 2210, 2220, and 2230.

The antenna connection portion 2200 may include a dummy connection terminal 2210, a feeding connection terminal 2220, a ground connection terminal 2230, and the like.

The feeding connection terminal 2220 is a terminal for feeding (feeding) to the antenna module, and the ground connection terminal 2210 is a terminal for grounding. And, the dummy connection terminal means a terminal which is not electrically connected with a circuit internal circuit or the like.

That is, the dummy connection terminal 2230 is not a terminal for making any electrical connection between the antenna module 3000 and the circuit board 2000, but rather a part of the current fed to the antenna module, Means a terminal provided to reduce the strength of an electric field in the vicinity of the audio output module by a coupling effect between the feeding connection terminal 2210 and the dummy connection terminal 2230.

The dummy connection terminal 2230, the feeding connection terminal 2220, and the ground connection terminal 2210 may be disposed horizontally spaced below the circuit board. The feeding connection terminal 2220 may be provided between the dummy connection terminal 2230 and the ground connection terminal 2210.

3, the dummy connection terminal 2230 may be disposed at a position nearest to the vertical bisector of the circuit board 2000. That is, the feeding connection terminal 2220 spaced apart in the horizontal direction has the ground connection terminal of the dummy connection terminal 2230 and the ground connection terminal 2210 disposed at the edge of the circuit board 2000, The dummy connection terminal 2230 may be disposed inside the circuit board 2000 and a feeding connection terminal 2220 may be provided between the dummy connection terminal 2230 and the ground connection terminal 2210.

In this case, it has been confirmed that when the distance d between the dummy connection terminal 2230 and the feeding connection terminal 2220 is 0.5 mm or more and 2 mm or less, an electric field reduction effect described later occurs. Specific experimental results will be described with reference to FIG.

The acoustic output module 152 may be provided on the circuit board 200 and the antenna connection unit 2200 may be provided on the lower portion of the circuit board 2000.

4, the antenna module 3000 includes a pattern unit 3100 for transmitting and receiving radio waves, and a carrier 3200 for supporting the pattern unit 3100.

The antenna module 3000 of the portable terminal according to the present invention includes a pattern portion for forming an inverted-F antenna pattern.

However, in order to secure Hearing Aid Compatibility (HAC), the portable terminal according to the present invention forms a pattern unit 3100 as follows.

A dummy branch pattern capable of branching the current in the vicinity of the feeding branch pattern having the strongest current intensity is branched from the pattern section 3100 constituting the antenna module 3000 to generate an electric field E- and a dummy connection terminal 2210 (see FIG. 3), on which an interaction by coupling with the feeding connection terminal 2220 connected to the feeding branch pattern can be generated, is formed on the circuit board 2000, So that mutual influence of the sound output module and the hearing aid of the portable terminal can be minimized.

The feeding branch pattern 3120 may be branched between the dummy branch pattern 3110 and the ground branch pattern 3130.

This is because the current intensity is dispersed due to the coupling induced between the feed connection terminal 2220 and the dummy connection terminal 2210 and the dummy branch pattern branched from the pattern portion 3100 constituting the antenna module 3000 an effect of dispersing the current induced in the acoustic output module due to a coupling effect of a loop shape may be generated.

That is, if the magnitude of the electric field measured in the vicinity of the sound output module is reduced, it becomes easy to satisfy the conditions such as the electric field for securing the compatibility of the hearing aid.

Particularly, when a bar type or slide type portable terminal is designed to be operable in a frequency region (for example, a PCS frequency region) in which the frequency of the frequency is relatively short to reduce the size of the electric field, The current induced in the upper end region of the circuit board 2000 can be weakened.

4, the acoustic output module 152 is provided in an upper region of the circuit board 2000, and the antenna module 3000 is provided in a lower region of the circuit board 2000 do.

In the case of a conventional portable terminal, in order to improve the radio performance, when increasing the amount of current fed through the output of the antenna module 3000, that is, the feeding branch pattern, some of the currents fed to the antenna module 3000 The electric current of the sound output module 152 is transmitted to the sound output module 152 side to increase the size of the electric field, and normal listening through the hearing aid worn by the user of the portable terminal may be impossible.

As shown in FIG. 5, the pattern unit may include an inverted-F antenna pattern. The pattern of a general inverted-F antenna includes a feeding branching pattern and a grounding branching pattern. However, the pattern portion 2100 of the antenna module of the portable terminal according to the present invention includes a feeding branch pattern 3120 connected to the feeding connection terminal 2220, a grounding branch pattern 3130 connected to the ground connection terminal 2230, A dummy branch pattern 3110 connected to the dummy connection terminal 2210 may be further included.

The dummy branch pattern 3110 divides the current in the vicinity of the feeding branch pattern 3120 having the strongest current intensity in the pattern portion 3100 and generates the electric field intensity of the E-field generated in the lower portion of the circuit board 2000 .

The circuit board 2000 is provided with a feeding connection terminal 2220 connected to the feeding branch pattern 3120 and a dummy connection terminal 2210 through which coupling can be generated, The mutual influence can be minimized. That is, when the magnitude of the current fed to improve the wireless performance is increased, a part of the current induced in the acoustic output module 152 is guided to the dummy connection terminal 2210 through the dummy branch pattern 3110, The intensity of the electric field or the like near the acoustic output module 152 has been reduced.

6 illustrates an embodiment of an antenna module of a portable terminal according to the present invention. 6 (a) is a plan view of the antenna module, FIG. 6 (b) is a rear view of the antenna module, and FIG. 6 (c) is a side view of the antenna module .

The antenna module 3000 shown in Fig. 6 (a) may include a carrier 3200 formed with a pattern 3100 for transmission or reception of radio waves. The pattern 3100 is bent in correspondence with the shape of the outer surface of the carrier 3200. The carrier 3200 may be made of a plastic material.

The feeding branching pattern 3120, the grounding branching pattern 3130 and the dummy branching pattern 3110 of the pattern portion of the antenna module according to the present invention are branched downwardly of the pattern portion 3100, And may be connected to the feeding connection terminal 2220, the ground connection terminal 2210, and the dummy connection terminal 2230 of the antenna connection portion 2200.

6B, each of the feeding branch patterns 3120, the ground pattern portions 3130 and the dummy branch patterns 3110 branched from the pattern portion 3100 are connected to the carrier 3200, And each end serves as a contact to be connected to the dummy connection terminal 2210, the feeding branch pattern 3120, and the ground connection terminal 2230 provided on the circuit board 2000.

6 (c), each of the feeding branch patterns 3120, the ground pattern portions 3130, and the dummy branch patterns 3130 branched from the pattern portion 3100 are formed on the lower surface of the carrier 3200, The carrier 3200 may be provided with at least one cutting portion for bending the feeding branching pattern 3110 from the pattern portion 3100. In the embodiment shown in Figure 6C, The ground pattern portion 3130 and the dummy branch pattern 3110 may be provided with cutouts 3250a, 3250b, and 3250c to be bent at the shortest distance, respectively.

FIG. 7 shows a result of a comparison test for determining whether or not the portable terminal according to the present invention is compatible with a hearing aid. 6 (a) shows the measurement result of the electric field intensity of a general portable terminal in which the dummy branch pattern portion is not branched in the pattern portion constituting the antenna module, and Fig. 6 (b) And a dummy connection terminal connected to the dummy branching pattern portion on the circuit board. The measurement result of the strength of the electric field of the portable terminal is shown in Fig.

The approximate method of this test method is as follows. First, the portable terminal to be measured is fixed to a supporter or the like in order to measure the strength of the electric field in the vicinity of the sound output module of the portable terminal.

A predetermined area near the sound output module of the portable terminal fixed to the supporter, for example, a 5Cm X 5Cm area is divided into a plurality of divided areas, and the size of the electric field or the like at the measuring points inside each divided area is scanned , And measures its strength.

A plurality of measurement points inside each of the divided areas can be configured. For example, a total of 625 measurement data can be obtained within a predetermined area (5Cm X 5Cm), with the intervals of measurement points being 2 mm apart in the horizontal and vertical directions.

The hearing aid compatibility test recognizes an exceptional area among a plurality of divided areas. That is, an exception is allowed to exclude three hotspot partition regions having a large electric field size among eight divided regions excluding the divided regions provided in the central portion among the nine divided regions, from the experimental data.

In the case of the general portable terminal shown in FIG. 7 (a), a hotspot divided area may be divided into a consecutive divided area located on the lower right side, and the embodiment shown in FIG. 7 (b) Can be excluded.

Therefore, except for each hotspot divided area, a peak value such as an electric field measured in five divided areas of the central divided area and the remaining divided areas is measured.

Also, in case of a portable terminal using a multi-frequency band, it is possible to test whether the hearing aid compatibility is satisfied in each frequency band in the same manner. Here, not only the magnitude of the electric field but also the magnitude of the magnetic field can be used as a judgment variable for determining the Hearing Aid Compatibility (HAC), and a variable having a critical meaning among the electric field and the magnetic field is determined as a judgment variable.

7, in the case of a portable terminal without a branching pattern portion, the peak value of the electric field measured in the central divided region and the remaining five divided regions was measured to be 38.89 dB (V / m) , The peak value of the electric field measured in the central divided region and the remaining five divided regions was 36.6 dB (V / m) in the case of the portable terminal according to the present invention having the branch pattern portion. In the experimental results, the dark region means a region where the intensity of the electric field is not relatively large, and the bright region in the graph of the experiment means a region having a relatively large electric field intensity. That is, the brightness of each measurement point and the intensity of the electric field have a proportional relationship.

In other words, by the dummy branch pattern of the pattern portion of the antenna module and the dummy connection terminal of the circuit board, the magnitude of the electric field measured by the sound output portion can be reduced by 2 dB (V / m) or more, : Hearing Aid Compatibility).

As a result of the experiment, the intensity of the current fed to the pattern unit 3100 is dispersed due to the coupling between the feeding connection terminal 2220 and the dummy connection terminal 2210, It can be interpreted that an effect that a current induced in the acoustic output module is dispersed due to a coupling effect in the form of a loop is generated by the dummy branch pattern 3110 branched from the pattern unit 3100.

In the above-described embodiment, the dummy branch pattern 3110 branched from the pattern portion 3100 constituting the antenna module 3000 is branched to reduce the size of the electric field or the like in order to satisfy hearing aid compatibility (HAC) It is obvious that the method can be applied to a sliding type or folding type portable terminal as well as the bar type portable terminal shown in FIG. Each of the slide-coupled or folder-coupled main bodies is electrically connected, and thus is similar to a bar-type portable terminal having one circuit board.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. . It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

100: portable terminal 2000: circuit board
2200: Antenna connection part 3000: Antenna module
3100: pattern part 3200: carrier

Claims (9)

Acoustic output module;
A circuit board mounted with the sound output module and having an antenna connection part provided at a position spaced apart from the sound output module and including a plurality of antenna connection terminals; And
And an antenna module detachably mounted on the circuit board, the antenna module including a carrier having a pattern portion and a pattern portion,
Wherein the antenna connection portion of the circuit board has a feeding connection terminal, a ground connection terminal and a dummy connection terminal, and the pattern portion of the antenna module is connected to the feeding connection terminal, the ground connection terminal, Pattern, a grounding branching pattern, and a dummy branching pattern,
Wherein the feeding branch pattern is branched between the dummy branch pattern and the ground branch pattern. The method according to claim 1,
Wherein the acoustic output module is provided on the circuit board, and the antenna connection unit is provided on a lower portion of the circuit board. delete The method according to claim 1,
Wherein the dummy connection terminal, the feeding connection terminal, and the ground connection terminal are disposed at a lower portion of the circuit board in a horizontal direction. 5. The method of claim 4,
And the distance between the feeding connection terminal and the dummy connection terminal is 0.5 mm or more and 2 mm or less. 5. The method of claim 4,
And the feeding connection terminal is provided between the dummy connection terminal and the ground connection terminal. The method according to claim 6,
Wherein the dummy connection terminal is disposed nearest to a vertical bisector of the circuit board. The method according to claim 1,
The feeding branching pattern, the grounding branching pattern, and the dummy branching pattern of the pattern portion of the antenna module are branched downwardly of the pattern portion and then bent to the backside of the carrier to be connected to the feeding connection terminal, Is connected to the portable terminal. The method according to claim 1,
Wherein the pattern unit of the antenna module includes an inverted F-type antenna pattern.

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