JP4854914B2 - IC card and information display method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an IC chip (portable recording medium) having a memory and an IC chip composed of a processor that performs control and arithmetic processing, and a communication interface electrically connected to the IC chip. A power supply source for a hybrid IC card, particularly when a stable power supply is required separately from the power supplied to the IC chip, for example, when a configuration other than the function defined in the ISO standard of the IC card is added. The present invention relates to an IC card having a configuration that can be used as
[0002]
[Prior art]
An IC card incorporates a thin IC chip (semiconductor integrated circuit) in a thin plastic material, and the IC chip has a program for performing predetermined information processing, and can record and read information on the IC chip. It is a generic term for a certain credit card size card, depending on the interface means, each method of “contact IC card” (IC card with external terminal) and “non-contact IC card” (IC card without external terminal), or They are classified into IC cards (generally called composite IC cards, hybrid IC cards, combination IC cards, or dual interface cards) that combine the two methods.
[0003]
The contact IC card is provided with an electrical contact (terminal) electrically connected to the IC chip on the IC card, is connected to an external terminal via this, and communicates with the external terminal. The non-contact IC card has a built-in coil or antenna that is electrically connected to the IC chip, and the data, clock signal, and power carried on the carrier wave, which is a weak radio wave, are extracted from the carrier wave and the built-in IC chip is used. Operate and communicate with external terminals. By providing interface means that supports both “contact” and “non-contact” methods, either “contact” or “non-contact” depending on the environment in which the IC card set by the card operator is used. Can be selected.
[0004]
In addition, since an IC card is a computer that uses an IC chip, it can realize advanced security using electronic technology and software technology, an information carrier in an advanced information society, an access key to information, Use as ID is expanding.
[0005]
As a result of the progress of the information society, the background of ISO (International Organization for Standardization) and JIS (JAPANESE Industrial Standards) is the standard (physical characteristics, structure, and protocol). , Interfaces, commands, etc.) have been standardized. For example, contact IC cards include ISO / IEC7816-1 / 2/3/4/5/6/8/9, JIS X 6303, 6304, 6306, 6307, 6308, 6300-8 / 9, non-contact IC cards. Are ISO / IEC10536-1 / 2/3, 14443-1 / 2/3/4, and 15693-1 / 2/3, which are still standards at international conferences as IC card-related technology development progresses. The draft is being discussed and a new standard is to be added.
The current IC card is also combined with a magnetic stripe card or an ID card, and is compatible with a conventionally used medium.
[0006]
Furthermore, a configuration not defined in the standard may be provided in the IC card. For example, it has been considered that a part of information held in the IC card is visually displayed. In electronic money applications, balance and transaction records, or in shopping point cards, in order to notify the customer of transaction information such as the number of points, the reversible thermosensitive recording method, microcapsule magnetic particle electrophoresis display method, microcapsule particle electrophoresis method, A display means using a liquid crystal display method is provided in an IC card, and information is rewritten and displayed for each transaction. In other cases, the information has been displayed on the monitor of the IC card terminal or the POS terminal at the time of the transaction or printed on the transaction receipt.
[0007]
However, until now, when an IC card is used, the IC card user is not notified that the IC card is operating in conjunction with communication performed with the terminal device of the IC card. However, even if there was, the status of the processing was displayed on the terminal and the lighting of the access lamp. In particular, since it is performed in a non-contact state such as a non-contact IC card, the IC card user has no means of knowing the processing state from the IC card. In view of this, the applicant of the present patent application 2002-254279 controls display means such as a light emitting diode (LED) and a liquid crystal (LCD) in accordance with the operation of the IC card in order to display information on the IC card in real time. An invention for displaying information is presented.
[0008]
[Patent Document 1]
JP-A-8-187981
[0009]
[Patent Document 2]
JP-A-8-227447
[0010]
[Patent Document 3]
JP-A-9-1968
[0011]
[Patent Document 4]
JP-A-9-73524
[0012]
[Problems to be solved by the invention]
However, functions added to those other than those specified in the standard as described above, such as the display means, cannot be operated, and other functions of the IC card may be affected by the function or may not be operated. If that matters. In the non-contact IC card as in the above prior art documents (Patent Documents 1 to 4), when driving power is supplied from one coil or antenna, power and resistance value for operating two or more functions, It is necessary to calculate the capacitor capacity and design the coil or antenna, and further to tune the resonance frequency of the coil or antenna, etc., due to variations in components that occur during IC card manufacturing.
[0013]
Therefore, the present invention independently maintains a power source that operates functions to be added other than those stipulated in the IC card standard, and can be added to the IC card without interfering with the operation of the function stipulated in the standard. The present invention provides a method for realizing expansion of functions to be performed, that is, its extensibility, versatility, and stability.
[0014]
[Means for Solving the Problems]
The present invention has been made to solve the above-described problems. An IC chip including a memory and a processor for performing control and arithmetic processing in a base material, and a non-electrically connected to the IC chip. An IC card having a contact-type or contact-type communication interface, wherein data input / output and operation power of the processor are supplied to the outside via the communication interface, and connected to a port in the processor; And a display device controlled by the processor, and for supplying operating power to the display deviceNoAnd antenna,A non-contact or contact-type communication interface that is an operating power supply source of the IC card and a coil or an antenna that is an operating power supply source of the display device are provided independently.An IC card characterized by
[0015]
According to a second aspect of the present invention, in the IC card according to the first aspect, the display device is a light emitting diode.
[0016]
According to a third aspect of the present invention, in the IC card according to the first aspect, the display device is a liquid crystal display device.
[0017]
  The invention according to claim 4The IC card according to claim 1, wherein the communication interface is a coil or an antenna.
[0018]
  The invention according to claim 55. The IC card according to claim 4, wherein the coil or antenna serving as the communication interface and the coil or antenna for supplying operating power are arranged so that at least a part thereof overlaps in a plane direction of the IC card. .
[0019]
  The invention described in claim 65. The IC card according to claim 4, wherein the coil or antenna serving as the communication interface and the coil or antenna for supplying operating power are arranged so as not to overlap in the planar direction of the IC card..
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. FIGS. 1A to 1C are external views of an IC card in one embodiment of the present invention, and FIGS. 2A and 2B are views of an IC card in another embodiment to which the present invention can be applied. An external view is shown.
[0026]
The type of the IC card may be a contact IC card, a non-contact IC card, or an IC card that combines the two methods, and is appropriately selected according to the application. Note that in this specification, the IC card or the IC card 1 is collectively referred to when not distinguished by any method.
[0027]
The contact IC card 2 includes a plastic processor such as vinyl chloride (PVC) resin or polyethylene terephthalate (PET) resin, a small processor (arithmetic processing unit), a contact interface, and a memory (electrically erasable writing is possible). A contact type IC module having an EEPROM as a data memory is built in, and communication and driving power for the contact IC card 2 are supplied via the contact interface 9.
[0028]
This processor consists of a nonvolatile memory (such as a mask ROM as a CPU drive program memory) and a volatile memory (such as a writable memory) that temporarily stores input / output data and arithmetic data for output. A central processing unit (CPU) including a control unit and a calculation unit.
[0029]
The non-contact IC card 3 is connected to a non-contact interface 10 having a coil and an LC oscillation circuit (coil / capacitor circuit) in place of the contact interface of the contact IC card 2, and normally transmits electromagnetic waves and radio waves to and from the IC card terminal 7. Commands, data, and clock signals are carried as carrier waves, and power is extracted from the carrier waves, and communication and driving power for the IC card are supplied. Although different from the contact IC card 2 in that the non-contact interface 10 is connected, the configuration of other processors and the like is almost the same.
[0030]
A contact IC card 2 shown in FIG. 1A includes an IC chip 13 composed of a processor and a memory, an external terminal 9 serving as a contact interface, a light emitting diode 11 (Light Emitting Diode; hereinafter referred to as LED), and an operating power as a display device. It consists of a supply coil or antenna 15 and wiring that electrically connects them. A non-contact IC card 3 shown in FIG. 1B includes an IC chip 13 composed of a processor and a memory, a coil or antenna 10 that is a non-contact interface, an LED 11 that is a display device, and a coil or antenna for supplying operating power to the display device. 15. It has wiring for electrically connecting them.
[0031]
FIG. 7 is a circuit diagram showing an embodiment of the operating power supply coil or antenna 15 according to the present invention. The external pull-up power supply circuit 21 including the coil 22, the LC circuit 23, and the rectifier circuit 24 is used to display the display device (LED 11 or LCD 12). ) And can be provided in the reader / writer 5 such as the IC card terminal 7. By providing the IC card independently of the power source for driving the IC card, the demand for the operating power of the display device does not affect the operation of the processor of the IC card. The external pull-up power supply circuit 21 can change the form of a coil, an antenna, etc. depending on the frequency band of electromagnetic waves / radio waves used in the IC card, and the shape thereof is a shape suitable for the applied frequency band. be able to. The frequency band to be used is generally 125 KHz, 4.9 MHz, 13.56 MHz, 2.45 GHz, and 5.8 GHz that are standardized (or proposed standardization) in ISO. A frequency different from the frequency used for card communication can be used.
[0032]
The LED 11 may be arranged at any position where it does not become an obstacle when using the IC card. The LED may be easily seen by the IC card user when using the IC card. The IC shown in FIGS. The front side of the card or the side of the IC card is shown in FIG. The case where the IC card is placed in front is when the IC card terminal is visible from at least a part or the whole of the IC card so that LED light emission can be seen when used in the IC card terminal 7. Further, when the IC card is arranged on the side of the IC card, it is in a state in which the IC card is once taken into the IC card terminal 7 when communicating with the IC card terminal 7, and from the IC card loading port. You can see the light emission of the LED 11 at the end of the card.
[0033]
Further, as shown in FIG. 2, a liquid crystal display device 12 (Lucid Crystal Display, hereinafter referred to as LCD) is arranged as a display device in place of the LED of FIG. 1, and data obtained as a result of processor processing, Alternatively, information processed in the data IC chip recorded in the memory, data transmitted from the IC card terminal via the processor, and the like are displayed.
[0034]
FIG. 3 is a schematic diagram of an IC card system in which the IC card according to the embodiment of the present invention can be used. An IC card 1, an information processing device 6 for operating the IC card, such as transmission of predetermined commands and data to the IC card and reception of responses and data from the IC card, and a reader / writer 5 for directly communicating with the IC card are provided. There is an IC card terminal 7. Further, although not described in detail above the IC card terminal, the host computer device 8 or another computer device is connected.
[0035]
In FIG. 3, power for operating the IC card 1, a clock signal, a command, data, and the like are transmitted from the reader / writer 5 according to an instruction from the information processing device 6. The IC card 1 operates the IC chip 13 with the received power, performs processing based on the command, and transmits the result or data to the reader / writer 5 as a response. The IC card of the present invention has an independent coil or antenna that supplies power used as a power source for other functions such as a display function in a non-contact manner, that is, by radio waves and electromagnetic waves. Since this coil or antenna is independent, it can be provided in any kind of IC card.
[0036]
4 (a) to 4 (c) show schematic circuits of the IC card of the present invention, and are schematic circuit diagrams of a contact IC card, a non-contact IC card, and a hybrid IC card having both interface methods. is there. FIG. 4A shows a contact IC card 2, which is provided with an external terminal 9 connected to an IC chip as a contact interface, and includes a clock terminal (CLK), a data input / output terminal (I / O), and a reset signal terminal (RST). ), A ground terminal (GND), and a circuit voltage terminal (Vcc), which are supplied with commands, data, clock signals, and power, and send responses and data to the IC card terminal 7 via the external terminal 9. Is done. The IC chip 13 has an output or input / output port 14 or an I / O port (the port configuration varies depending on the IC chip design / manufacturer, but may be a high current port. Here, the display means such as the LED 11 is used. A port for outputting a signal for controlling the display device), and a signal for controlling the display device is transmitted from this port 14. Further, an LED 11 serving as a display device is provided, and a coil 15 and a rectifier circuit 16 provided independently of the circuit voltage terminal (Vcc) are connected to the LED 11.
[0037]
FIG. 4B shows a non-contact IC card 3, which has at least a generally used electromagnetic induction coil 10 / LC circuit (not shown) connected to an IC chip as a non-contact interface. The command, data, clock signal sent on the carrier wave, and power are taken out from the carrier wave. Moreover, although a response and data are transmitted to the IC card terminal 7 via the coil 10, details are omitted. The IC chip 13 has a port 14 for performing output or input / output, or an I / O port (others are omitted), and a signal for controlling the display device is transmitted from this port. Further, an LED 11 serving as a display device is provided, and a coil 15 and a rectifier circuit 16 provided independently of the circuit voltage terminal (Vcc) are connected to the LED 11.
[0038]
FIG. 4C shows the hybrid IC card 4 having both the contact interface 9 and the non-contact interface 10, and the description of the configuration is omitted, but either one is selected depending on the interface means of the IC card terminal 7 to be used. These methods are appropriately selected and function.
[0039]
FIGS. 5A to 5C show a display device in which an LCD 12 is arranged instead of the LED 11 in FIG. 4 and includes display control means (not shown) for controlling the display of the LCD 12. Sent through.
[0040]
6 (a) to 6 (c) show an IC chip 13, a non-contact interface coil 10, a display device (LED 11 or LCD 12), which are used when the IC card of the present invention is a non-contact IC card 3. FIG. It is the schematic of the inlet 17 which shows the wiring 19 to electrically connect. FIG. 6A shows a state in which the non-contact interface coil 10 and a part of the operating power supply coil 25 of the LED 11 overlap each other in the case of the non-contact IC card 3, and FIG. ), A non-contact interface coil and an operating power supply coil 15 of the LED 11 are formed on concentric circles. FIG. 6C shows an arrangement in which an LCD 12 is arranged instead of the LED 11 in FIG.
[0041]
The base material 18 of the inlet 17 has flexibility and strength such as an insulating resin film, ceramic, paper, etc., and preferably has adhesiveness with a plastic resin as an IC card base material. A coil having a shape suitable for the frequency used by the IC card is formed on the substrate 18. Here, the number of windings is assumed to be 13.56 MHz. The coil can be formed by a known technique such as a printing method using a conductive ink, a vapor deposition method, a plating method, an etching method, and the method is not particularly limited. The wiring 19 for connecting the IC chip, the non-contact interface coil 10, and the display device (LED 11 or LCD 12) is also formed by the same method. One end of the coil 10 is connected to the IC chip 13 and the display device (LED 11 or LCD 12) by the bridge 20 so as not to short-circuit with other coil wires. The other end portions of the coil 10 are also connected by the bridge 20 so as not to short-circuit with other coil wires. Further, the operating power supply coil 15 is similarly formed on the other side of the substrate 18.
It is also possible to form the non-contact interface coil 10 and the operating power supply coil 15 on different base materials and use them by laminating them.
[0042]
FIGS. 8A to 8D show an outline of a processing flow in the operation program of the IC card in the present invention.
FIG. 8A shows a non-contact IC card 3 that is ready for use at an IC card terminal. First, before the IC card communicates with the IC card terminal 7, anti-collision processing (step S001) is performed. Do. This anti-collision process is presented in ISO / IEC 144443-3. As shown in FIG. 8B, a call signal from the IC card terminal 7 is received (step S101), a predetermined process (step S102) is performed, and a card-specific code is transmitted to the IC card terminal 7 (step S103). If the IC card is specified and anti-collision is established (step S104), the process returns to the card-side main flow.
[0043]
Next, command processing (step S002) is performed, and processing corresponding to the command sent is repeated. In this command processing flow, as shown in FIG. 8C, a command is received (step S201), a process according to a command request (step S202) is performed, and a processing result is transmitted to the IC card terminal 7 (step S202). ) Here, in the process of displaying information related to the process (step S203), the information is displayed on the display device (LED 11 or LCD 12) of the IC card.
[0044]
As an example of this command processing, the case of the data read command shown in FIG. The processor confirms whether the file name indicates data recorded in the memory (here, FFh) (step S301). If it is correct, the current value (data) is read (step S302), and the preset display method setting value is read (step S303). This set value is set to permit / deny display of the IC card (step S307), and further, the display method is set. For example, when the lighting of the LED is set depending on the numerical value, the set value is greater than or equal to the set value. If it is less than that, it is divided into lighting and blinking, and the LED is controlled (step S308). Even if the file name is not confirmed in step S301, the existence of the file is confirmed (step S304), the current value (data) is read in the same manner (step S305), and the preset display method setting value is read. In step S306, display is permitted / not permitted (step S307), and the LED is controlled in accordance with the display method setting (step S308).
Here, when the LCD 12 is used instead of the LED 11, display control of the LCD 12 is performed in step S308.
[0045]
The LED 11 includes an LED that emits white light and an LED that emits colored light such as blue, red, and yellow, and can be selected in consideration of visual effects caused by lighting or blinking when displaying data on an IC card.
In addition, by installing a plurality of LEDs 11 on the IC card, setting a plurality of threshold values for the numerical value of the data read from the IC card, and turning on the plurality of LEDs according to each threshold value, the display is made finer according to the data. You can also.
[0046]
When the data recorded in the memory of the IC card is numerical data such as the balance of the prepaid card or the number of points, the LED 11 is turned on when the numerical data is larger than a preset numerical value (set value). It can also blink when it is small.
That is, a threshold value for lighting or blinking is registered in advance in the IC card, and the data is set as a default value when the IC card is issued, and is rewritten according to the transaction of the IC card holder.
[0047]
Arbitrary setting so that the LED blinks once for 1000 yen, blinks twice for 2000 yen, blinks 3 times for 3000 yen, for example, as a specific set value, not numerical data below a preset value It is also possible to know the amount of money in the IC card by changing the number of blinks according to the value, and to confirm the amount information of the prepaid card directly from the display device of the IC card.
[0048]
Next, a usage example of an IC card using such a display device (LED 11 or LCD 12) will be described. The contact IC card reader 25 shown in FIG. 9A and the non-contact IC card reader 26 shown in FIG. 9B do not have a display function such as a liquid crystal display like a conventional IC card reader / writer. It can be replaced by lighting or blinking display of the LED 11 on the IC card side or display on the LCD 12.
[0049]
As a result, the contact IC card reader 25 and the non-contact IC card reader 26 are very light and compact, and the price is low.
[0050]
【The invention's effect】
According to the present invention, an IC chip including a memory and a processor that performs control and arithmetic processing in a card base, and a non-contact or contact communication interface that is electrically connected to the IC chip, In a contact type, non-contact type or hybrid type IC card in which data is input / output to the processor and operating power is supplied via a communication interface, it is connected to a port in the processor and controlled by the processor. When the IC card has a function to be added to those other than those stipulated in the standard of the IC card by providing the display device and the coil or antenna for supplying the operating power of the display device, the function to be added is provided. Since the power supply to be operated is held independently, the IC card can be operated without interfering with the functions specified in the standard. Expanding the function to add, it is possible to its extensibility and versatility, to achieve stability.
[0051]
In addition, with a display device that operates with an independent power supply, numerical data in the IC card (balance, number of points, etc.) is provided on the IC card, for example, an increase in the prepaid payable balance, the number of points, or a health examination. The numerical data such as the presence / absence of the inspection reference value range can be confirmed by the lighting state such as the number of repeated flashing of LEDs or the combination thereof, and the user of the IC card can identify and judge the display information.
[Brief description of the drawings]
FIGS. 1A to 1C are external views of an IC card according to an embodiment of the present invention.
FIG. 2 is an external view of an IC card in one embodiment of the present invention in which a liquid crystal display device is arranged as a display device instead of the LED of FIGS. 1 (a) and (b).
FIG. 3 is a schematic diagram of an IC card system in which an IC card according to an embodiment of the present invention can be used.
FIGS. 4A to 4C show schematic circuits of an IC card of the present invention, and schematic circuits of a hybrid IC card having a contact IC card, a non-contact IC card, and both interface methods; FIG.
FIGS. 5A to 5C are schematic circuit diagrams of an IC card according to the present invention in which an LCD is arranged instead of the LED of FIG. 4 as a display device.
FIGS. 6A to 6C are an IC chip, a non-contact interface coil, a display device, and a wiring for electrically connecting the IC chip used when the IC card of the present invention is a non-contact IC card. It is the schematic of the inlet which shows.
FIG. 7 is a circuit diagram showing an embodiment of an operating power supply coil or antenna according to the present invention.
FIGS. 8A to 8D show an outline of a processing flow in an operation program of a non-contact IC card in the present invention.
FIG. 9 is an explanatory diagram showing an example using an IC card display device of the present invention.
[Explanation of symbols]
1 IC card
2 contact IC card
3 Non-contact IC card
4 Hybrid IC card
5 Reader / Writer
6 Information processing equipment
7 IC card terminal
8 Host computer device
9 External terminal (contact interface)
10 Coil (Non-contact interface)
11 Light Emitting Diode (LED)
12 Liquid crystal display (LCD)
13 IC chip
14 ports
15 coils
16 Rectifier circuit
17 Inlet
18 Substrate
19 Wiring
20 bridge
21 External pull-up power supply circuit
22 coils
23 LC circuit
24 Rectifier circuit
25 Contact IC card reader
26 Non-contact IC card reader

Claims (7)

An IC chip including a memory and a processor that performs control and arithmetic processing in the base material, and a non-contact interface having an LC transmission circuit that is electrically connected to the IC chip. An IC card in which data input / output and operating power of the processor are supplied through an interface,
Is connected to the port in the processor, and a display device having being controlled by said processor, and a coil or antenna operating power for supply of the display device, the non-a source of operating power of the IC card Apart from the contact interface, IC card, characterized in that the coil or antenna and rectifier circuit operation is the power source of the display device is provided. The IC card according to claim 1, wherein the display device is a light emitting diode. The IC card according to claim 1, wherein the display device is a liquid crystal display device. According to claim 1, wherein the coil or antenna in the non-contact type interface, that operating power supply coil or antenna of a display device, which are arranged so as to at least partly overlap in the planar direction of the IC card Symbol IC card. 2. The IC card according to claim 1 , wherein the coil or antenna in the non-contact interface and the coil or antenna for supplying operating power of the display device are arranged so as not to overlap in the plane direction of the IC card. . A coil or an antenna in the non-contact interface is formed on one side of a base material constituting the IC card, and an operating power supply coil or antenna for the display device is formed on the other side. Item 1. The IC card according to Item 1. The coil or antenna in the non-contact interface is formed on the first base material constituting the IC card, and the operating power supply coil or antenna of the display device is provided on the second base material laminated with the first base material. The IC card according to claim 1, wherein the IC card is formed.

Images