KR101342181B1 - Apparatus and method for connecting antenna in mobile phone - Google Patents

Abstract

The present invention relates to an apparatus and a method for connecting an antenna in a portable terminal, wherein when the power of the portable terminal is turned off, the second switch unit connects a smart card module unit and an external device mounted on the portable terminal. Power management unit for supplying; And a control unit configured to supply power to the second switch unit and to connect the smart card module unit and the external device through the second switch unit when the portable terminal is powered off. Therefore, by forming a communication terminal to transmit and receive user identification information in the mobile terminal, performs the additional service function of the mobile terminal when connecting the communication terminal to the antenna when the power is on / off, and transmit or receive data or charge If necessary, the communication terminal can be connected to an external device to be used, and a communication terminal for wireless communication or data communication can be provided to minimize mounting space required separately.

Handset, Antenna, USB, Power, Switch, Smart Card, Interface

Description

Apparatus and method for connecting an antenna in a mobile terminal {APPARATUS AND METHOD FOR CONNECTING ANTENNA IN MOBILE PHONE}

The present invention relates to an apparatus and method for connecting an antenna in a portable terminal.

In general, a portable terminal is a device that allows a user to carry, store, process and output stored information, and provide a mobile communication function to the user. Such portable terminals include personal digital assistance (PDA), global positioning system (GPS) terminals, and mobile communication terminals. Recently, as the notebook computer becomes smaller, portability is further improved, and at the same time, with the development of wireless communication technology, an environment in which a portable computer can be used to access multimedia functions such as watching movies or access the Internet anywhere is carried out.

Recently, various functions have been added to portable terminals to satisfy various needs of users. In particular, multimedia functions that deliver data and images that are most frequently used, including functions such as mail, the Internet, and games using a mobile terminal are continuously added.

In addition, a module for attaching a smart card (for example, SIM / USIM, UICC or any other smart card) to the back of the portable terminal for use as a credit card or a transportation card is included, and an antenna is built in the battery pack. One mobile terminal was introduced.

1 is an exploded perspective view showing a portable terminal according to the prior art.

Referring to FIG. 1, an electrical configuration of a portable terminal 100 according to the related art includes an RF transmitter / receiver 110 that transmits / receives a radio frequency signal with a base station through an antenna; A key input unit 120 for generating a corresponding key signal when the numeric / character key button and the function key button are operated; A program storage unit for storing an operating system (OS) or various applications of the terminal, for example, a financial application for a mobile payment service, and a data storage unit for temporarily storing data generated during a calculation process or storing data set by a user. A storage unit 130 including; The microphone 140 converts an external sound wave into a corresponding analog type voice signal, the speaker 150 converting an analog type voice signal generated inside the terminal into a sound wave, and the analog type voice input from the microphone 140. The audio processor 160, the display 180, and the video signal outputted to the display unit 180 convert the signal into a corresponding digital audio signal and convert the digital audio signal into a corresponding analog audio signal and output the same to the speaker 150. Image processing unit 170 for processing; It includes a connector unit 190 is equipped with a loop antenna 192 for using a mobile payment service based on a financial application and a control unit 195 for controlling them collectively, in particular, the control unit 195 is a connector The loop antenna 192 mounted on the unit 190 is controlled, and the overall components are collectively controlled to use the mobile payment service based on the information of the smart card received from the smart card reader and the on-board financial application.

The mobile terminal 100 receives the card information of the adjacent smart card through the loop antenna 192 mounted to the connector 190. Thereafter, the mobile terminal 100 receives the password of the smart card from the user and accesses the financial server that issued the smart card to perform a financial transaction, for example, account transfer, prepaid card charging, or purchase of goods purchased in an online shopping mall. Pay the bill or pay at the credit card merchant.

At this time, the portable terminal 100 recognizes the mounting state of the loop antenna 192 only when the power is on, and turns on the light emitting diode connected to the connector 190 to indicate the connection state.

The conventional portable terminal 100 is provided using a power source as a rechargeable battery. When the portable terminal is powered off, the portable terminal 100 does not recognize the loop antenna 192 from the connector unit 190. There are many difficulties in transit and credit card transactions.

In addition, the Korean Patent Application No. 2006-0107646 discloses a smart card reader connected to the card slot provided in the main body of the portable terminal, which is simply connected to the portable terminal for a financial transaction, such as a smart card reader in the terminal A separate installation space must be reserved for installing the card slot. On the other hand, in view of the current situation in which the installation space becomes smaller and smaller according to the trend of miniaturization of the portable terminal, there is a problem that the conventional portable terminal having the above-described structure is subject to the spatial constraints.

The present invention forms a communication terminal for transmitting and receiving user identification information in the mobile terminal, thereby performing an additional service function of the mobile terminal when connecting the communication terminal to the antenna when the power is turned on and off, and sending or receiving data or charging The present invention provides an apparatus and method for connecting an antenna in a portable terminal that can be used by connecting a communication terminal to an external device.

In addition, the present invention provides an apparatus and method for connecting an antenna in a portable terminal that meets the miniaturization by providing a communication terminal while minimizing a separately required mounting space.

The present invention for achieving the above object in the device for connecting the antenna in the portable terminal, when the power of the portable terminal, the second switch for connecting the smart card module unit and the external device mounted on the portable terminal A power management unit for supplying power to the unit; And controlling the controller to supply power to the second switch unit when the portable terminal is powered off, and to connect the smart card module unit to the external device through the second switch unit. do.

In addition, the present invention is characterized in that it comprises a step of supplying power to the second switch unit for connecting the smart card module unit and the external device mounted on the portable terminal when the power is turned off to the portable terminal.

The present invention made as described above forms a communication terminal to transmit and receive user identification information to the mobile terminal by performing an additional service function of the mobile terminal when connecting the communication terminal to the antenna when the power on / off, and the data In the case of exchanging or requiring charging, the communication terminal can be connected to an external device and used.

In addition, the present invention can meet the miniaturization of the portable terminal by minimizing the mounting space required separately while providing a communication terminal for wireless communication or data communication.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

2 is a block diagram showing an external device connected to a portable terminal according to a preferred embodiment of the present invention, Figure 3 is a block diagram showing a portable terminal according to a preferred embodiment of the present invention.

As illustrated in FIG. 2, the external device 200 according to an exemplary embodiment of the present invention is connected through an interface unit 370 corresponding to the portable terminal 300.

Here, the external device is an RF antenna that allows wireless communication with an external reading device (for example, a traffic toller), for example, an antenna having a characteristic capable of communicating in the 13.56 MHz frequency range, and the like. Likewise, both terminals of the antenna are connected to the communication terminals D + and D- of the interface unit 370.

In addition, a USB charging device for supplying a battery of the mobile terminal 300 as a charging power source, a USB flash memory that is a portable storage device, a USB flash drive, etc. may be utilized, and a signal is output in a specific form at different levels depending on the type. .

As shown in FIG. 3, the portable terminal 300 according to an exemplary embodiment of the present invention includes a wireless transceiver 310, a data processor 320, an audio processor 330, a display unit 340, and a key input unit 350. ), A memory 360, an interface unit 370, a first switch unit 380, a power management unit 390, a second switch unit 400, a smart card module unit 410, and a controller 420. .

The wireless transceiver 310 performs a wireless communication function of the mobile terminal 300. The wireless transceiver 310 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal.

The data processor 320 includes a transmitter for encoding and modulating a signal transmitted from the wireless transceiver 310 and a receiver for demodulating and decoding a received signal. That is, the data processor 320 may be configured of a modem and a codec CODDEC. The codec may include a data codec for processing packet data and an audio codec for processing an audio signal such as voice. Codecs may be separately provided or included in the controller 420.

The audio processor 330 reproduces a received audio signal output from the audio codec of the data processor 320 or transmits a transmission audio signal generated from a microphone to the audio codec of the data processor 320.

The display unit 340 may be formed of a liquid crystal display (LCD) or the like, and outputs various display data generated by the portable terminal 300. In this case, when the LCD is implemented using a touch screen method, the display unit 340 may operate as an input unit.

The key input unit 350 includes function keys for setting various functions of the portable terminal 300, and also includes a plurality of keys selected and input by a user for inputting information, and a key input pressed by the user. Is converted into a predetermined voltage signal and provided to the control unit 420.

The memory 360 may include program memory and data memories. The program memory may store programs for controlling a general operation of the mobile terminal 300. In addition, the data memory temporarily stores data generated while executing programs.

The interface unit 370 is a connector including communication terminals D + and D- for data communication or contactless wireless communication among input / output terminals standardized according to the TTA standard for connecting to the external device 200. For example, 24 pins are used according to the standard of the TTA, and 20 pins can be configured to connect other external devices.

In this case, when the external device 200 is mounted, the interface unit 370 is connected to the external device 200 and transmits a voltage output from the external device 200 to the first switch unit 380.

The first switch unit 380 performs a switching operation for connecting the communication terminals D + and D− of the interface unit 370 to the power management unit 390 according to the voltage output from the external device 200.

The power management unit 390 controls the power supply of the battery supplied to each component of the portable terminal 300, in particular, the power of the battery is connected to the pull-up / down resistor to supply to the second switch unit when the power on / off Manage it. In addition, a switching operation for connecting the communication terminals D + and D- of the interface unit 370 to the smart card module unit 410 in the second switch unit 400 according to the switching operation of the first switch unit 380. Control to perform.

That is, when the power management unit 390 does not perform a switching operation in the first switch unit 380, the second power supply unit 390 transmits and receives information performed by the smart card module unit 410 through wireless communication when power is turned on or off. The switch unit 400 controls to perform a switching operation.

When the power management unit 390 performs the switching operation in the first switch unit 380, the switching unit 400 switches in the second switch unit 400 to transmit and receive information stored in the memory 360 through data communication. Control not to do it.

The second switch unit 400 receives the power of the battery connected to the pull-up / down resistor when the power is on / off, and smartizes the communication terminals D + and D- of the interface unit 370 under the control of the power management unit. A switching operation for connecting to the card module unit 410 is performed.

The smart card module unit 410 operates by contact and non-contact, and stores user identification information, and can be classified into various types according to the classification criteria, but the IC chip is greatly contacted according to the way information is read from the card. It is divided into contactless card and combined card. That is, the smart card for the user identification module of the mobile terminal 300, for example, Subscriber Identity Module (SIM) card, Universal Subscriber Identity Module (USIM), Smart (User Identity Module) card, R Smart (Removable User Identity Module) ) Use cards.

In addition, the smart card module unit 410 performs an operation on the user identification information and outputs the result value to the control unit 420. For example, authentication information for user identification is extracted and the extracted authentication information is output. Accordingly, if the corresponding authentication is successful in the reading apparatus, the user can pass through the security gate. In addition, the smart card module unit 410 may output billing information for using additional services such as user information, user certificate information, and copyright information for user identification in response to an input signal.

In addition, the user identification information refers to not only user identification information but also a smart card module unit 410 such as a UIM or a SIM in order to receive a supplementary service by registering the mobile terminal 300 to a mobile communication network such as GSM, CDMA and WCDMA. Information such as phonebook data stored in the device is referred to.

The control unit 420 controls the overall operation of the mobile terminal 300 according to an embodiment of the present invention, the second switch unit 400 supplied with the power of the battery connected to the pull-up / down resistor when the power on / off By performing the switching operation under the control of the power management unit in the external device 200 connected to the communication terminals (D +, D-) of the interface unit 370 is determined to be connected to the antenna, and then through the antenna smart card module unit The result performed at 410 is controlled to be transmitted and received through wireless communication.

The controller 420 does not perform a switching operation in the second switch unit 400 under the control of the power manager 390, thereby switching the first switch unit 380 according to the voltage output from the external device 200. By operation, the external device 200 connected to the communication terminals D + and D- of the interface unit 370 may be determined to be connected to the USB device, and data related to the mobile terminal 300 may be transmitted within the allowable range. Control to send and receive with

In addition, the external device 200 to be connected to the interface unit 370 of the portable terminal 300 is connected through gender. Such a gender is a device that changes the connection method from one method to another as a pin adapter for easily connecting various connectors having different specifications to the portable terminal 300. This gender allows the portable terminal 300 to be compatible with various external devices 200. Therefore, the present invention uses gender as an interface that can be connected to various external devices 200.

Referring to the operation and effect of the embodiment of the present invention configured as described above are as follows.

4 is a flowchart illustrating a method for connecting an antenna in a mobile terminal according to an exemplary embodiment of the present invention.

As shown in FIG. 4, first, when the external device 200 is mounted through the interface unit 370 (S400), the power management unit 390 according to the output voltage of the external device 200. The switching operation of the first switch unit 380 for connecting the communication terminals D + and D− of the interface unit 370 to the power management unit 390 is checked (S410).

After the switching operation is not performed in the first switch unit 380, the interface unit may be connected to the second switch unit 400 that receives the power of the battery connected to the pull-up / down resistor when the power is turned on / off (S420). The control terminal 370 controls to perform a switching operation for connecting the communication terminals D + and D- to the smart card module unit 410 (S430).

In addition, the external device 200 connected to the communication terminals D + and D- of the interface unit 370 is determined to be connected to the antenna by the switching operation of the second switch unit 400 (S440). Control to transmit and receive the information performed by the smart card module unit 410 via wireless communication (S450).

Meanwhile, when the switching operation is performed by the first switch unit 380, the power management unit 390 controls not to perform the switching operation of the second switch unit 400 (S460). Thereafter, according to the switching operation of the first switch unit 380, the external device 200 is determined to be connected to the USB device through the power management unit 390 (S470). Control to transmit and receive information in data communication (S480).

That is, when the communication terminals (D +, D-) are connected to the antenna when the power is turned on / off by forming the communication terminals (D +, D-) to transmit and receive user identification information using the existing TTA standard specification. When performing a supplementary service function of the portable terminal 300, and transmitting or receiving information or charging is required, the communication terminal may be connected to a USB device for use.

As described above, an apparatus and method for connecting an antenna in a mobile terminal according to an exemplary embodiment of the present invention can be made. Meanwhile, in the above description of the present invention, a specific embodiment has been described. There may be various embodiments without departing from the gist.

1 is an exploded perspective view showing a mobile terminal according to the prior art

2 is a block diagram illustrating an external device connected to a mobile terminal according to an exemplary embodiment of the present invention.

3 is a block diagram illustrating a mobile terminal according to an exemplary embodiment of the present invention.

4 is a flowchart illustrating a method for connecting an antenna in a mobile terminal according to an exemplary embodiment of the present invention.

Claims (12)

An apparatus for connecting an antenna in a mobile terminal, A power management unit for supplying power to the second switch unit connecting the smart card module unit and the external device mounted to the portable terminal when the portable terminal is powered off; And controlling the controller to supply power to the second switch unit when the portable terminal is powered off, and to connect the smart card module unit to the external device through the second switch unit. Apparatus for connecting an antenna in a mobile terminal. The method of claim 1, wherein the power management unit, And an apparatus for connecting an antenna in the portable terminal, wherein the power of the battery connected to the pull-up resistor is managed to supply power to the second switch unit when the portable terminal is turned off. The apparatus of claim 1, When the external device is an antenna, the device for connecting an antenna in the mobile terminal, characterized in that for controlling the transmission and reception of the information performed in the smart card module unit by wireless communication. The method of claim 1, An interface unit to which the external device is mounted; Further comprising a first switch unit for performing a switching operation for connecting the external device and the power management unit, When the external device is mounted, the control unit controls not to perform the switching operation of the second switch unit when the first switch unit performs the switching operation, and does not perform the switching operation. In this case, the apparatus for connecting an antenna in the mobile terminal, characterized in that for controlling the second switching unit receiving the power of the battery connected to the pull-up resistor to perform a switching operation when the power on / off. 5. The apparatus of claim 4, In response to the switching operation performed by the second switching unit, the external device is determined as an antenna, and an antenna is connected to the portable terminal for controlling transmission and reception of information performed by the smart card module unit through wireless communication through the antenna. Device for 5. The apparatus of claim 4, And a device for connecting an antenna in the portable terminal to determine that the external device is connected to a USB device and to transmit / receive information related to the portable terminal through data communication as the first switching unit performs a switching operation. In the method for connecting an antenna in a mobile terminal, When the power is turned off to the portable terminal, connecting the antenna in the portable terminal comprising the step of supplying power to the second switch for connecting the smart card module unit and the external device mounted on the portable terminal. Way. The method of claim 7, wherein the supplying power comprises: And supplying power of a battery connected to a pull-up resistor to the second switch when the power is turned off to the portable terminal. 8. The method of claim 7, When the power of the portable terminal is turned off, if the antenna is mounted on the interface of the portable terminal as the external device, the mobile terminal further comprises the step of transmitting and receiving information performed by the smart card module by wireless communication Method for connecting an antenna in a terminal. 8. The method of claim 7, When the external device is mounted, checking a switching operation of the first switch unit performing a switching operation for connecting the external device and a power management unit; If the first switch unit performs a switching operation, controlling not to perform a switching operation of the second switch unit performing a switching operation for connecting the external device and the smart card module unit; If the first switch unit does not perform a switching operation, the mobile terminal further comprises the step of controlling the second switching unit to be supplied with the power of the battery connected to the pull-up resistor to perform the switching operation when the power on / off Method for connecting the antenna. 11. The method of claim 10, Determining that the external device is a connection of a USB device as the first switching unit performs a switching operation, and controlling to transmit / receive information related to the portable terminal through data communication; And performing the switching operation in the second switching unit, determining the external device as an antenna, and controlling the transmission and reception of the information performed by the smart card module unit through wireless communication through the antenna. Method for connecting the antenna at delete

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