KR20050025883A - Chip card and apparatus for electronic commerce using the chip card - Google Patents

Abstract

An EC(Electronic Commerce) chip card for communicating with an external device and an EC device using the same are provided to conveniently interface a terminal main body and a battery pack on an EC terminal by inserting the chip card between the terminal main body and the battery pack embedded with an additional function circuit without an additional part. The chip card(100) includes a memory(130) storing financial settlement data of a user, and a controller(140) transceiving data needed for processing the EC with a main body(200) of a mobile communication terminal through a main interface(150) and storing settlement data to the memory. The chip card includes the main interface linked with the first interface(280) of the main body and an extended interface(160) electrically connecting a part of signal lines with the signal line of the main interface. The extended interface is interfaced with the second interface(310) in case that the battery pack(300) is installed to the main body.

Description

Chip card and Apparatus for electronic commerce using the chip card}

The present invention relates to an electronic commerce device which is equipped with a chip card for electronic commerce and a chip card to perform an electronic commerce function.

Chip form for electronic commerce according to the present invention is a SIM (Subscriber Identification Module) card, SD (Secure Digital) card, MINI-SD card, MMC (Multimedia Card), RS (Reduced Size) -MMC, CF (Compact Flash) , Memory stick (MS), MINI-MS, and the like. In the present specification, the chip for e-commerce is described by taking the SIM card type as an example, but is not limited thereto and is interpreted to encompass the chip cards as described above.

For reference, the SIM card stores user's personal financial payment information and is used as a contactless electronic credit card and a transportation card, and the use thereof is gradually increasing to implement various functions of the mobile communication terminal.

In addition, the electronic commerce device according to the present invention may be a mobile communication terminal for electronic commerce (M-Commerce), for example, can be equipped with a chip card such as a SIM card. In the present specification, an electronic commerce device is described as an example of a mobile communication terminal for electronic commerce, but is not limited thereto. The electronic commerce device is interpreted to cover a general electronic commerce device equipped with an electronic commerce chip card.

1 is an exploded perspective view of a mobile communication terminal equipped with a conventional electronic commerce chip card. As shown in the drawing, a chip card mounting part 40 capable of mounting the chip card 50 is formed at a predetermined position on the rear surface of the terminal body 10. The chip card mounting portion 40 preferably includes a chip card mounting hole 12 corresponding to the shape of the chip card 50 and formed to a depth corresponding to the height of the chip card 50.

The chip card mounting hole 12 is provided with electrical terminals 41 electrically connected to a printed circuit board (not shown) of the terminal body 10. A plurality of terminals of the electrode pattern formed on one surface of the chip card 50 contacts the electrical terminals 41 formed in the chip card mounting hole 40 when the chip card 50 is mounted in the chip card mounting hole 40. It is done. Accordingly, the terminal body 10 is electrically connected to the chip card 50 to enable communication.

Meanwhile, the present applicant has developed a patent application for battery packs for mobile communication terminals incorporating circuits supporting additional functions such as MP3 players, games, self-diagnosis, skin care, and the like. In addition, the present applicant has filed in Patent Application No. 2004-12345 to simplify a means for interfacing with a battery pack having an additional function in a mobile communication terminal provided with a means for interfacing with an e-commerce chip. According to this technology, the mobile communication terminal and the battery pack can be interfaced without adding or changing hardware. However, this technology requires adding an adapter to the chip card, and thus requires additional components, and the user's operation is inconvenient.

SUMMARY OF THE INVENTION The present invention is derived from this process, and an object of the present invention is to more easily interface a terminal body and a battery pack in an electronic commerce terminal in which a chip card is inserted between a mobile communication terminal body and a battery pack in which additional function circuits are embedded. .

Furthermore, it aims to interface the terminal body and the battery pack with only the chip card without additional components.

An electronic commerce chip card according to an aspect of the present invention for achieving the above object includes an extension interface electrically connected to the main interface and interfaced with the battery pack, in addition to the main interface for communicating with the main body of the mobile communication terminal.

According to this aspect of the present invention, since the mobile communication terminal main body may use additional functions built in the battery pack through an extension interface of the electronic commerce chip card, a separate interface for electrically connecting the battery pack needs to be implemented. There will be no.

The foregoing and further aspects of the present invention will become more apparent through the preferred embodiments described with reference to the accompanying drawings. Hereinafter, the present invention will be described in detail to enable those skilled in the art to easily understand and reproduce the present invention.

2 is a view showing an electronic commerce chip card according to an embodiment of the present invention, Figure 2a is a perspective view of the chip card, Figure 2b is a rear view of the chip card, Figure 3 is a chip card of FIG. A diagram illustrating a state in which a battery and a mobile communication terminal are connected to the main body.

As shown, the chip card 100 is capable of contact communication with an external device through the first electrode pattern 110 formed on one surface, the terminal 121 formed on the other surface and separated by the pattern At least some of the second electrode patterns 121 may be electrically connected to the corresponding terminals 111 of the first electrode pattern 110.

In the electronic commerce chip card 100, a first electrode pattern 110 is formed on one surface of the chip card 100. Each terminal 111 divided by the pattern of the first electrode pattern 110 is mounted in the chip card mounting hole 210 formed on the other surface of the mobile communication terminal main body 200, as shown in FIG. Each of the plurality of terminals 221 electrically connected to the printed circuit board 200 (not shown) of the 200 is in contact with each other. Accordingly, the mobile communication terminal main body 200 is electrically connected to the electronic commerce chip card 100 to enable communication.

The second electrode pattern 120 according to the present invention is formed on the other surface of the chip card 100 for e-commerce as shown in Figure 2b, preferably corresponding to the same shape as the first electrode pattern 110 do. At least some of the terminals 121 divided by the pattern of the second electrode pattern 120 are electrically connected to the corresponding terminals 111 of the first electrode pattern 110, respectively.

In addition, each terminal 121 divided by the pattern of the second electrode pattern 120 has a plurality of terminals formed on its surface as the battery pack 300 is mounted on the mobile communication terminal main body 200 as shown in FIG. 3. Contact terminals 320. Accordingly, the mobile communication terminal main body 200 has an optional circuit of an additional function built in the battery pack 300 through the first electrode pattern 110 and the second electrode pattern 120 formed on the electronic commerce chip card 100. Is electrically connected to and can handle its additional functions.

According to an additional aspect of the present invention, the electrical connection between the terminals 121 of the second electrode pattern 120 and the terminals 111 of the corresponding first electrode pattern 110 is performed through the chip card 100. Characterized in that made. FIG. 2C is a cross-sectional view taken along the line AA of the chip card 100 shown in FIG. 2A, and as shown in FIG. 2C, each terminal 121 of the second electrode pattern 120 and the corresponding first electrode pattern 110 are respectively shown. The terminals 111 are electrically connected through the inside of the chip card 100.

Figure 4 shows the overall configuration of a mobile communication terminal according to an embodiment of the present invention. As shown, the electronic commerce device according to the characteristic aspect of the present invention is detachably coupled to the first body including a first interface 280 that is interfaced with the outside, the mobile communication terminal body 200, the external A second body including a second interface 310 which is interfaced with the second body;

A main interface 150 that interfaces with the first interface 280, at least some signal lines are electrically connected to signal lines of the main interface 150, and an expansion interface 160 that interfaces with the second interface 310; And a chip card 100 including a control unit 130 for transmitting and receiving data to and from the mobile communication terminal main body 200 through a main interface 150 and a memory 140 for storing payment data.

The first main body is the mobile communication terminal main body 200 in the embodiment shown in the configuration for processing the main function, and the second main body is the battery pack coupled with the main body in the embodiment shown in the configuration for processing the terminated function. 300.

In one embodiment, the mobile communication terminal main body 200 includes a keypad 240 having a typical terminal configuration, a display unit 250 of, for example, a liquid crystal display, and a communication unit 260 of, for example, a CDMA communication module. It includes.

The main control unit 231 controls the terminal as a whole, the additional function processing unit 232 for processing additional functions of the battery pack 300, and DC power supplied from the battery pack 300 through the power supply terminal 360. It includes a power supply unit 270 to process and supply to the entire system.

The add-on processing unit 232 is implemented by a program code written based on a virtual machine for a mobile communication terminal such as, for example, a general virtual machine (GVM), and provides a menu through, for example, the display unit 250. And receiving a selection from the keypad 240 and transmitting a command to the battery pack 300 through the first interface 280 to start a corresponding control, and in the case of a diagnostic device, data measured from the battery pack 300. Controls operations related to the user interface, such as receiving and processing a value through the first interface 280 and displaying and outputting the value on the display unit 250. In one preferred embodiment, both main controller 231 and add-on processor 232 are implemented as program code, and are executed by a single microprocessor in the main control chip originally built into the terminal body 200.

As illustrated in FIG. 4, the first interface 280 includes a plurality of terminals 221 at a predetermined position of a surface on which the battery pack 300 is mounted, and is responsible for interfacing for data transmission and reception with the chip card 100. do.

The battery pack 300 is typically detachably coupled to the rear surface of the mobile communication terminal main body 200 and includes a plurality of battery cells 350 for supplying DC power to the mobile communication terminal main body 200 through the power supply terminal 360. ), An additional circuit unit 340 for providing an additional function to the mobile communication terminal main body 200 side, an additional function processor 330 for controlling the operation of the additional circuit unit 340 and transmitting and receiving data to and from the outside. A second interface 310 in charge of interfacing for data transmission and reception.

Since the battery cell 350 and the power supply terminal 360 have a conventional configuration, description thereof will be omitted. The additional circuit unit 340 includes circuits essential for implementing functions such as music reproduction, treatment, diagnosis, and the like, which are also known configurations. The additional function processor 330 interprets a command from the mobile communication terminal main body 200 received through the second interface 310 to directly control hardware of the additional circuit unit 340.

For example, in the case of a diagnostic apparatus, the additional function processor 330 may process data measured by the additional circuit unit 340 and transmit the result to the mobile communication terminal body 200 through the second interface 310. Alternatively, in the case of the music reproducing apparatus, the sound source data is read from the flash memory included in the additional circuit unit 340, decompressed, transmitted to the mobile communication terminal main body 200, and the operation command of the terminal main body 200 is transmitted to the second interface 310. Received through), you can transmit a list of sound source files, or play or delete the file accordingly.

As shown in FIG. 3, the second interface 310 includes a plurality of terminals 320 formed at a predetermined position on a surface to which the battery pack 300 is coupled and electrically connected to an additional circuit of the battery pack 300. It is responsible for transmitting and receiving signals through interfacing with the outside.

The e-commerce chip card 100 is detachably coupled to the mobile communication terminal body 200 as shown in FIG. The electronic commerce chip card 100 includes a memory 130 for storing personal financial payment data of the user and an external device, that is, a mobile communication terminal, through a main interface 150 for processing payment matters according to the electronic commerce. And a controller 140 for transmitting and receiving necessary data with the main body 200 and storing and processing payment data in the memory 130. Since the memory 130 and the controller 140 are generally known components of the chip card 100, detailed descriptions thereof will be omitted.

In addition, the chip card 100 may include a host interface 150 interfaced with an external device, for example, the first interface 280 of the mobile communication terminal main body 200, and at least some signal lines may be connected to a signal line of the main interface 150. And an extension interface 160 that is electrically connected.

The main interface 150 interfaces with the first interface 280 to electrically connect the mobile communication terminal main body 200 and the chip card 100 mounted on the main body 200. Accordingly, the controller 130 of the chip card 100 may perform the above-described operation under the control of the mobile communication terminal main body 200.

The extension interface 160 has at least some signal lines of the plurality of signal lines electrically connected to the signal lines of the main interface 150. In addition, the expansion interface 160 is interfaced with the second interface 310 when the battery pack 300 described above is mounted on the mobile communication terminal main body 200.

Accordingly, the mobile communication terminal main body 200 can communicate with the battery pack 160 through the expansion interface 160 of the chip card 100 without the need for a separate interface for communicating with the battery pack 300. .

The main interface 150 according to an additional aspect of the present invention is formed on one surface of the card to contact the external device, that is, the first electrode pattern 110 and the first contacting terminals 221 of the mobile communication terminal main body 200. An interface controller 151, wherein the expansion interface 160 is formed on the surface of the other surface of the card, and at least some of its terminals 121 separated by the pattern correspond to the corresponding terminals of the first electrode pattern 110; And a second electrode pattern 120 electrically connected to the ones 111.

As shown in FIG. 4, the main interface 150 includes a first electrode pattern 110 and a first interface controller 151, and the expansion interface 160 includes a second electrode pattern 120.

The first electrode pattern 110 is a physical interface hardware-implemented to match physical interconnect characteristics, and is formed on one surface of the card as shown in FIG. 2. Each terminal 111 divided by the pattern of the first electrode pattern 110 may be a terminal included in an external device, that is, the first interface 280 of the mobile communication terminal main body 200 (reference numeral 221 shown in FIG. 5). Physical contact).

The first interface controller 151 is an electrical interface that processes electrical characteristics such as a voltage and a frequency of a signal, and a logical interface that processes a transmission and reception method of a signal. The first interface controller 580 together with the first electrode pattern 110 is provided. Match the conditions for interconnection required for normal interfacing with

The second electrode pattern 120 is a physical interface hardware-implemented to match physical interconnect characteristics, and is formed on the other surface of the card as shown in FIG. 3. At least some of the terminals 121 divided by the pattern of the second electrode pattern 120 are electrically connected to the corresponding terminals 111 of the first electrode pattern 110, respectively, as shown in FIG. 3. do. In addition, each terminal 121 divided by the pattern of the second electrode pattern 120 may include terminals (indicated by reference numeral 320 shown in FIG. 3) included in the second interface 310 of the battery pack 300. Physical contact.

According to a further aspect of the present invention, the chip card 100 further includes an additional memory (not shown) for storing data therein. The additional memory may be, for example, flash memory, and stores program files, MP3 files, video files, etc. for executing various applications. Accordingly, the mobile communication terminal can use the additional memory of the electronic commerce chip card 100 as an extended memory.

According to an exemplary aspect, the terminals 221 of the first interface 280 formed in the mobile communication terminal main body 200 and the terminals 320 of the second interface 310 of the battery pack 300 are elastic. It is made of pins. Accordingly, physical contact between the first interface 280 and the main interface 150, the second interface 310, and the expansion interface 160 may be smoothly maintained even when vibrations or shocks occur while carrying the mobile communication terminal. Can be.

According to another aspect, each terminal 221 of the first interface 280 formed in the mobile communication terminal main body 200 and each terminal 320 of the second interface 310 of the battery pack 300 are anisotropic. Made of a conductive film. Anisotropic conductive film is an adhesive on a film in which conductive particles are dispersed in metal coated plastic or metal particles, and has excellent performance in insulation and adhesion. Due to the anisotropic conductive film, reliability of contact between the first interface 280 and the main interface 150, the second interface 310, and the expansion interface 160 is improved. Since the anisotropic conductive film performing such a role is a known technical configuration, detailed description thereof will be omitted.

According to a further aspect of the present invention, the first interface 280, the second interface 310, the main interface 150, and the expansion interface 160 may be interfaces according to one of the I ² C scheme and the RS-232 scheme. It is characterized by. I ² C is a protocol that makes it easy to implement communication between devices proposed by Philips. Since the I ² C method is a bus method, the main interface 150 and the expansion interface 160 may be connected to the same signal line. Since a technology related to the I ² C protocol support interface is well known, a detailed description thereof will be omitted.

In the case of the RS-232 interface, since the main interface 150 operates as a receiver and the expansion interface 160 operates as a transmitter, the transmission and reception signal lines must be crossed and connected inside the chip card. Furthermore, chip enable logic is required to selectively access external expansion devices and chip cards. Since such selective communication techniques of multiple devices are well known, detailed descriptions thereof will be omitted.

According to an additional aspect of the present invention, the first main body, that is, the mobile communication terminal main body 200, outputs a first enable signal to the electronic commerce chip card 100 and outputs the second enable signal to the second main body (battery pack 300). And outputting two enable signals.

As shown in FIG. 5, the microprocessor (not shown) provided on the printed circuit board of the mobile communication terminal main body 200 is in contact with the first interface 280 and the first interface 280. The enable signal is output to one of the additional circuits of the electronic commerce chip card 100 and the battery pack 300 that are electrically connected through the corresponding contact terminals of the terminals 111 of.

As described above, when the enable signal is output from the mobile communication terminal main body 200 according to the manipulation of the keypad 240 of the user, the additional circuit of the electronic commerce chip card 100 or the battery pack 300 selectively operates. As a result, a collision of data transmitted by software can be prevented.

As described above, since the mobile communication terminal body according to the present invention can use an additional function built in the battery pack through an extension interface of the electronic commerce chip card, a separate interface for electrically connecting the battery pack needs to be implemented. There is no effect.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

1 is an exploded perspective view of a mobile communication terminal equipped with a conventional electronic commerce chip card.

2 is a view showing an electronic commerce chip card according to an embodiment of the present invention,

2A is a perspective view of a chip card.

2B is a rear view of the chip card.

FIG. 2C is a cross-sectional view taken along the line A-A shown in FIG. 2A; FIG.

3 is a view illustrating a state in which the chip card of FIG. 2 is connected to a battery and a main body of a mobile communication terminal.

Figure 4 is a block diagram schematically showing the overall configuration of a mobile communication terminal according to an embodiment of the present invention.

5 is a view for explaining the operation of the mobile communication terminal according to an embodiment of the present invention.

Claims (12)

In an electronic commerce chip card capable of contact communication with an external device through a first electrode pattern formed on one surface, the chip card is: At least some of the terminals formed on the other surface of the chip card and separated by a pattern further include a second electrode pattern electrically connected to corresponding terminals of the first electrode pattern, respectively; Commerce chip card. The chip card of claim 1, wherein the respective electrical connections between the terminals of the second electrode pattern and the terminals of the corresponding first electrode pattern are made through the inside of the chip card. In an electronic commerce chip card capable of contact communication with an external device through an interface, the chip card may be: An extension interface having a primary interface and at least some signal lines electrically connected to signal lines of the primary interface; A controller for transmitting and receiving data with an external device through the main interface to process payment; A memory for storing payment data; E-commerce chip card comprising a. 4. The method of claim 3, wherein the chip card is: The main interface includes a first electrode pattern and a first interface controller formed on one surface of the chip card to be in contact with terminals of an external device; The expansion interface is formed on the other surface of the chip card, wherein at least some of the terminals separated by the pattern include second electrode patterns electrically connected to corresponding terminals of the first electrode pattern, respectively. Chip card for e-commerce. The method of claim 3 or 4, wherein the chip card is: An additional memory for storing data therein; the electronic commerce chip card further comprises. The method according to claim 3 or 4, wherein the main interface and the extension interface are: E-commerce chip card, characterized in that the interface according to one of the I ² C method or RS-232 method. A first body including a first interface interfacing with the outside; A second body detachably coupled to the first body, the second body including a second interface interfacing with the outside; A main interface interfaced with the first interface, at least some signal lines electrically connected to a signal line of the main interface, an extension interface interfaced with the second interface, and data connected to the first body through the main interface; A chip card including a control unit for transmitting and receiving a payment and a memory for storing payment data; E-commerce device comprising a. 8. The method of claim 7, wherein the chip card is: The main interface includes a first electrode pattern and a first interface controller formed on one surface of the chip card to be in contact with the terminals of the first interface, The expansion interface is formed on the other surface of the chip card, wherein at least some of the terminals separated by the pattern include second electrode patterns electrically connected to corresponding terminals of the first electrode pattern, respectively. Electronic commerce device. The method of claim 7 or 8, wherein the chip card is: And an additional memory for storing data therein. The electronic commerce device of claim 8, wherein each of the terminals of the first interface and each of the terminals of the second interface is made of an elastic pin or an anisotropic conductive film. The electronic commerce apparatus according to claim 7 or 8, wherein the first interface, the second interface, the main interface, and the extended interface are interfaces according to one of the I ² C scheme and the RS-232 scheme. The method of claim 7 or 8, wherein the first body is: And outputting a first enable signal to the chip card, and outputting a second enable signal to the second body.