KR101481513B1 - A mobile telecommunication device and a method of interfacing with a extra device using the same - Google Patents

Abstract

You can attach an external memory, connect an earphone or an adapter that can connect the charger to the socket, use the information stored in the external memory, or perform charging, and output the music file stored in the external memory to the earphone connected to the adapter And a method for interfacing external devices using the same.

Description

Description: TECHNICAL FIELD [0001] The present invention relates to a mobile terminal and a method of interfacing an external device using the same.

The present invention relates to a portable terminal capable of connecting an SD card (Secure Digital card) to a receptacle terminal, and a method of interfacing external devices using the portable terminal.

An SD card is mainly used as an external memory of the portable terminal. Conventionally, there was no external memory module connected by an interface. Therefore, an external SD adapter type that can be connected to a computer is used. That is, there is an inconvenience because it interfaces with a terminal using a computer.

It is an object of the present invention to provide a portable terminal and a method for interfacing an external device using the portable terminal, which can solve the inconvenience due to the memory capacity limitation.

It is another object of the present invention to provide a portable terminal capable of easily interfacing an external memory without being connected to a computer, and a method of interfacing an external device using the portable terminal.

It is another object of the present invention to provide a portable terminal for controlling a music file stored in an external memory mounted on an adapter to be output to an earphone connected to an adapter, and an external device interfacing method using the portable terminal.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a portable terminal comprising: an adapter for receiving an external device;

A detailed structure of the portable terminal according to the present invention is characterized by including a socket for connecting an adapter for performing an interface with at least one external device, a switching unit for switching an electrical connection to an adapter connected to the socket, A memory for storing an identification signal of an external device to be mounted, a memory for recognizing at least one external device mounted on the adapter according to a signal transmitted through the switching unit using the identification signal stored in the memory, And a control unit for generating a control signal for controlling the display unit.

The control signal may be a signal for controlling power supplied through the adapter or a signal for controlling data, or a signal for controlling driving of an external device connected to the adapter. .

Another detailed configuration of the portable terminal according to the present invention is that the socket is an 18-pin receptacle.

The portable terminal according to the present invention can be expected to solve the inconvenience due to the memory capacity limitation. Further, it is expected that an external device mounted on an adapter connected to a universal receptacle can be controlled by software.

Music files stored in the external memory attached to the adapter can be output through the earphone connected to the adapter.

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 A / V input unit 120, an operation unit 130, a sensing unit 140, an A / V (Audio / Video) output unit 150 A storage unit 160, an interface unit 170, a control unit 180, a power supply unit 190, and the like. It should be noted that when the components are implemented in a practical application, two or more components may be merged into one component, or one component may be subdivided into two or more components as necessary.

The components will be discussed in turn.

The wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114 and a GPS 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 be 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 server and transmitting the generated broadcast signals and / or broadcast- The broadcast-related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. 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 also be provided through a mobile communication network, in which case it may be received by the mobile communication module 112.

Broadcast-related information can 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).

  The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a digital multimedia broadcasting-terrestrial (DMB-T), a digital multimedia broadcasting-satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 is configured to be suitable for all the broadcasting systems that provide broadcast signals as well as the digital broadcasting system described above.

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

In addition, 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. Here, 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 the wireless Internet module 113 can be built in or externally.

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

In addition, the GPS (Global Position System) module 115 receives position information from a plurality of artificial satellites.

The A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal. The audio / video input unit 120 may include a camera module 121 and a microphone module 122. The camera module 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. Then, the processed image frame can be displayed on the display module 151.

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

The microphone module 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. The microphone module 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The operation unit 130 generates key input data that the user inputs for controlling the operation of the terminal. The operation unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like. Particularly, when the touch pad has a mutual layer structure with the display module 151 described later, it can be called a touch screen.

The sensing unit 140 senses the current state of the portable terminal 100 such as the open / close state of the portable terminal 100, the position of the portable terminal 100, To generate a sensing signal. 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. Also, it is responsible for a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like.

The interface unit 170 serves as an interface with all the external devices connected to the portable terminal 100. For example, it may be a wired / wireless headset, an external charger, a wired / wireless data port, a card socket (e.g. a memory card, a SIM / UIM card), an audio I / I / O (input / output) terminals, and earphones. The interface unit 170 receives data from an external device or receives power from the external device, transfers the data to each component in the portable terminal 100, or transmits data in the portable terminal 100 to an external device.

The identification module storing various information for authenticating the usage right of the mobile terminal 100 is used in the form of a chip and includes a user identification module (UIM), a subscriber identity module ; 'SIM'), a Universal Subscriber Identity Module ('USIM'), and the like. Also, the device provided with the identification module may be manufactured in a smart card format. In the present invention, a structure for mounting an identification device may be provided on one side of the terminal, and may be connected to the terminal 100 through an adapter connected to a socket of the interface unit 170.

The A / V (Audio / Video) output unit 150 is for outputting an audio signal or a video signal, and may include a display module 151 and an audio output module 152.

The display module 151 displays and outputs information processed by the portable terminal 100. For example, when the portable terminal is in the call mode, a UI (User Interface) or GUI (Graphic User Interface) associated with a call is displayed. When the portable terminal 100 is in the video communication mode or the photographing mode, the captured image and / or the received image or UI and GUI are displayed.

Meanwhile, as described above, when the display module 13 and the touch pad have a mutual layer structure to constitute a touch screen, the display module 151 can be used as an input device in addition to the output device. The display module 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display). Also, there may be two or more display modules 151 according to the implementation mode of the portable terminal 100. [ For example, the portable terminal 100 may include an external display module (not shown) and an internal display module (not shown) at the same time.

The audio output module 152 outputs audio data received from the wireless communication unit 110 or stored in the storage unit 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, and a broadcast reception mode. The sound output module 152 outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, and the like) performed in the portable terminal 100. The sound output module 152 may include a speaker, a buzzer, and the like.

Meanwhile, the portable terminal 100 according to an embodiment of the present invention may include a vibration output unit that outputs a signal in the form of vibration using a motor although not shown.

The storage unit 160 may store a program for processing and controlling the control unit 180 and may store a program for temporarily storing input / output data (e.g., a phone book, a message, a still image, Function may be performed. In addition, information for digital broadcast reservation recording and the like can be stored according to the setting of the user.

The storage unit 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) A RAM, and a ROM. In addition, the portable terminal 100 may operate a web storage that performs a storage function of the storage unit 150 on the Internet.

The controller 180 controls the overall operation of the portable terminal. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 may include a multimedia playback module 181 for multimedia playback. The multimedia playback module 181 may be configured in hardware in the controller 180 or separately from software in the controller 180. [

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.

In the foregoing, the mobile terminal related to the present invention has been examined from the viewpoint of components according to functions. Hereinafter, the portable terminal related to the present invention will be further described with reference to FIGS. 2 and 3 in terms of components according to the external form. Hereinafter, for simplicity of explanation, a slider type portable terminal will be exemplified among various types of portable terminals such as a folder type, a bar type, a swing type, a slider type, and the like. Therefore, the present invention is not limited to the slider-type portable terminal but can be applied to all types of portable terminals including the above-mentioned type.

2 is a perspective view of a portable terminal according to an embodiment of the present invention. The state in which the first body 100A is disposed so as to overlap with the second body 100B may be referred to as a closed state and at least a portion of the second body 100B may be exposed One state can be called an open state.

The mobile terminal operates mainly in the standby mode in the closed state, but the standby mode is also released by the user's operation. The portable terminal operates mainly in the communication mode in the open state, but is also switched to the standby mode by the operation of the user or a predetermined period of time.

The casing (casing, housing, cover, etc.) constituting the outer appearance of the first body 100A is formed by the first front case 100A-1 and the first rear case 100A-2. Various electronic components are embedded in the space formed by the first front case 100A-1 and the first rear case 100A-2. At least one intermediate case may be additionally disposed between the first front case 100A-1 and the first rear case 100A-2.

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 display module 151, the first sound output module 152-1, the first camera module 121-1, or the first operation unit (not shown) is connected to the first body 100A, specifically, the first front case 100A- 130-1 may be disposed.

The display module 151 includes a liquid crystal display (LCD), an OLED (Organic Light Emitting Diodes), and the like that visually express information.

The display module 151 overlaps the touch pad in a layer structure so that the display module 151 operates as a touch screen to enable information input by a user's touch.

The first sound output module 152-1 may be implemented in the form of a speaker or the like.

The first camera module 121-1 may be adapted to capture an image or a moving image of a user or the like.

The first operation unit 130-1 receives an operation signal according to a user's intention to control the operation of the portable terminal.

Like the first body 100A, the case constituting the outer appearance of the second body 100B is formed by the second front case 100B-1 and the second rear case 100B-2.

The second operation unit 130-2 may be disposed on the front face of the second body 100B, specifically, the second front case 100B-1.

The third operating unit 130-3, the microphone module 122, and the interface unit 170 may be disposed on at least one of the second front case 100B-1 and the second rear case 100B-2.

The first to third operating portions 130-1, 130-2 and 130-3 may be collectively referred to as a manipulating portion 130. If the operating portions 130-1, 130-2 and 130-3 are operated in a tactile manner Any way can be employed.

For example, the operation unit may be embodied by a dome switch or a touch pad capable of receiving a command or information by a push or touch operation of the user, or may be implemented by a wheel, a jog system, a joystick, or the like .

In terms of functions, the first operation unit 130-1 is for inputting commands such as start, end, and scroll, and the second operation unit 130-2 is for inputting numbers, characters, symbols, will be.

Also, the third operating unit 130-3 can operate as a hot-key for activating a special function in the portable terminal.

The microphone module 122 may be implemented in a form suitable for receiving voice, sound, etc. of the user.

The interface unit 170 is a channel through which the portable terminal related to the present invention can exchange data with an external device. For example, the interface unit 170 may be a wired or wireless connection terminal for connecting to an earphone, a port for short-range communication, for example, an IrDA port, a Bluetooth port, and a power supply terminal for supplying power to a wireless LAN port or the like.

A power supply unit 190 for supplying power to the portable terminal is mounted on the second rear case 100B-2.

The power supply unit 190 may be detachably coupled to a rechargeable battery, for example, for charging.

3 is a rear perspective view of the portable terminal of FIG.

Referring to FIG. 3, a second camera module 121-2 may be further mounted on the rear surface of the second rear case 100B-2 of the second body 100B. The second camera module 121-2 has a photographing direction substantially opposite to that of the first camera module 121-1 (see Fig. 2), and may have different pixels from the first camera module 121-1 (see Fig. 2).

For example, the first camera module 121-1 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit the face to the other party, and the second camera module 121-2 has a general object It is often desirable to have a high pixel.

A flash 121-3 and a mirror 121-4 may be further disposed adjacent to the second camera module 121-2. The flash 121-3 shines light toward the subject when the subject is photographed by the second camera module 121-2. The mirror 121-4 allows the user to illuminate the user's face or the like when the user intends to take a picture of himself / herself (self-photographing) using the second camera module 121-2.

The second sound output module 152-2 may be additionally disposed in the second rear case 100B-2.

The second sound output module 152-2 may implement the stereo function together with the first sound output section 152-1 (see FIG. 3), and may be used for talking in the speakerphone mode.

On one side of the second rear case 100B-2, a broadcast signal reception antenna 111-1 may be arranged in addition to an antenna for communication. The antenna 111-1 can be installed to be able to be drawn out from the second body 100B.

A part of the slide module 100C that slidably connects the first body 100A and the second body 100B is disposed on the first rear case 100A-2 side of the first body 100A.

The other part of the slide module 100C may be disposed on the second front case 100B-1 side of the second body 100B and may not be exposed to the outside as in this figure.

In the above description, the second camera module 121-2 and the like are disposed on the second body 100B, but the present invention is not limited thereto.

For example, at least two of the configurations 111-1, 121-2 to 121-3, and 152-2 described as being arranged in the second rear case 100B-2, such as the second camera module 121-2, It is also possible that one phase is mounted on the first body 100A, mainly on the first rear case 100A-2. In such a case, there is an advantage that the structures disposed in the first rear case 100A-2 in the closed state are protected by the second body 100B. Further, even if the second camera module 121-2 is not separately provided, the first camera module 121-1 is rotatably formed so that the second camera module 121-2 can be photographed up to the photographing direction of the second camera module 121-2 It is possible.

4 is a view illustrating an adapter connected to a portable terminal according to the present invention. The adapter 200 is inserted into the socket 171 of the interface unit 170 formed on one side of the terminal. The adapter 200 is connected to a memory mounting part 220 for mounting an external memory such as an SD card (Secure Digital card), an earphone socket part 230 for connecting the earphone, and a socket of the portable terminal, An interface unit 210 formed on one surface of the housing is configured to perform a data interface with the earphone. Meanwhile, the charging socket unit 240 may be configured to connect a traveling charging device for supplying power to the portable terminal 100 through the socket 171 of the portable terminal. In some cases, the earphone socket unit 230 The charging socket unit 240 may not be separately provided. The SD card may be a micro SD, a mini SD, or a general SD card. The design of the product, and various other situations. However, the specification of the memory mounting portion is applied to a common standard.

The earphone can be connected to the terminal like an adapter. If you plug in an SD card that stores MP3 files on the adapter and connect an earphone, you can listen to MP3 files in the external memory by earphone. Of course, a host player function may be embedded in the terminal body or the adapter as needed. In addition, an indicator for indicating the current state of the mounted external device may be displayed through the display device of the terminal, or may be configured on one side of the adapter. Of course, when it is configured in an adapter, it may be displayed using a light emitting element so that the user can recognize it.

FIG. 5 is a block diagram illustrating components of a wireless terminal according to an embodiment of the present invention. Referring to FIG. A switch 171 for switching an electrical connection with an adapter 200 connected to the socket 171, a switching unit 172 for switching an electrical connection between the socket 171 and the adapter 200, A memory 160 for storing an identification signal of an external device mounted on the adapter 200, a memory 160 for storing identification signals of at least one external device mounted on the adapter according to a signal transmitted through the switching unit, And a control unit (180) for recognizing the device and generating a control signal for receiving or transmitting at least one signal. A host player for driving a music file stored in an external memory SD mounted on the adapter 200 may be incorporated in the terminal or may be incorporated in a separate memory (not shown) provided in the adapter 200 It is possible. In this case, it is not necessary to mention that the adapter 200 is provided with switches necessary for driving music files.

Fig. 6 is a circuit diagram showing the configuration of Fig. 5 in detail. It shows the interface procedure when the adapter is connected using the 18-pin receptacle of the terminal. At least six control lines including a power supply (Vcc) and a ground (GND) are required for interfacing with an external memory mounted on the adapter.

Basically, the pin function assignment is as shown. Because there is no domestic standard, most companies have their own standards, but the functions assigned to them are mostly similar. The first switching device Q1 senses when the terminal is connected to the computer via USB. In this case, since the master is a computer, the power is supplied to the USB_VBUS from the computer → the terminal, so that the USB_detection is detected by changing the potential .

When a USB connection is detected, the signal is used as a control signal to switch the USB_D + line by using the first switch SW1. By default, the "USB + / SD_detec" line must be set to SD_Detect to determine whether an external memory (SD) is inserted through the adapter.

When USB is detected instead of SD, the first switch (SW1) is switched to the USB line to utilize the USB function. Also, when the USB is detected, the second switching (SW2) may be kept as a default. Thereafter, when the SD_detect is activated, that is, when the adapter equipped with the external memory is connected to the terminal socket portion, the second switch SW2 is switched to SD_CMD.

A typical terminal will communicate with the computer via UART or USB. The UART_TxD & RxD of the third switch SW3 is set to be connected to the control unit by default because there is a possibility that UART is used even though most of the recent trend is a USB scheme. If SD_detect is activated, that is, when the adapter having the external memory is connected to the terminal socket, the third switch SW3 is connected to the SD lines, that is, SD_CLK & SD_DATA lines, like the second switch SW2 do.

An application example of the present invention will be described separately.

1. If an adapter with external memory is connected to the terminal socket

· USB is not detected by default and becomes disabled.

· When the terminal and the adapter are connected, the state of SD_Detect is changed from "High → Low".

Therefore, the second switch SW2 and the third switch SW3 are switched. That is, SD_CMD, SD_CLK, and SD_DATA [0] lines are connected to the control unit.

· Data is exchanged with SD interface according to the switching process.

2. If the terminal socket is equipped with external memory and the earphone (or charger) is connected

· USB is not detected by default and becomes disabled.

· When the terminal and the adapter are connected, the state of SD_Detect is changed from "High → Low".

Therefore, the second switch SW2 and the third switch SW3 are switched. That is, SD_CMD, SD_CLK, and SD_DATA [0] lines are connected to the control unit.

Since the earphone (or charger) is connected, the earphones are detected and all the switches SW2 and SW3 are connected to the external memory line. The earphone lines are all independent of the SD lines and can operate without any special change in operation.

3. If the USB / UART / earphone / data cable is connected without the adapter connected, it is in a general state, that is, the connection between USB and UART line is maintained.

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

2 is a front perspective view of a portable terminal according to an embodiment of the present invention.

3 is a rear view of a portable terminal according to an embodiment of the present invention.

4 is a view illustrating an adapter connected to a portable terminal according to the present invention.

FIG. 5 is a block diagram illustrating components of a wireless terminal according to an embodiment of the present invention. Referring to FIG.

Fig. 6 is a circuit diagram showing the configuration of Fig. 5 in detail.

Claims (13)

A display unit; An acoustic output unit; A socket for connecting an SD (Secure Digital card) card, an adapter for performing an interface between the earphone and the charger; A switching unit switching an electrical connection with an adapter connected to the socket; An SD card mounted on the adapter, a memory storing an identification signal of the earphone and the charger; And And a controller for detecting whether at least one of the SD card, the earphone and the charger is mounted on the adapter according to a signal transmitted through the switching unit, based on the identification signal stored in the memory, Wherein, When the SD card and the earphone are detected as being mounted on the adapter, the sound output unit reproduces the audio file in the SD card and outputs the audio file to the earphone, Wherein at least one of the SD card, the earphone, and the charger is detected as being mounted on the adapter, the display unit displays on the display unit an indicator indicating at least one current status of the adapter. delete delete delete The portable terminal of claim 1, wherein the portable terminal is one of a cellular phone, a personal digital assistant (PDA), a notebook, and a portable multimedia player (PMP). The mobile terminal of claim 1, wherein the socket is an 18-pin receptacle. delete delete delete delete delete An SD (Secure Digital card) card, an adapter for performing an interface between the earphone and the charger is connected to the socket; Detecting whether at least one of the SD card, the earphone, and the charger is mounted on an adapter connected to the socket, based on the identification signal stored in the memory; Reproducing the audio file in the SD card and outputting the audio file to the earphone if it is detected that the SD card and the earphone are mounted on the adapter; And And displaying on the screen an indicator indicating at least one current status of the adapter, if at least one of the SD card, the earphone, and the charger is detected to be installed in the adapter. A method for interfacing an external device. delete

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