WO2002086811A1

WO2002086811A1 - Composite ic module

Info

Publication number: WO2002086811A1
Application number: PCT/JP2002/003815
Authority: WO
Inventors: Kunitaka Arimura
Original assignee: Smart Card Co., Ltd.
Priority date: 2001-04-17
Filing date: 2002-04-17
Publication date: 2002-10-31
Also published as: JPWO2002086811A1; JP2005062908A

Abstract

A composite IC module with much less malfunction of a signal or its reading failure and easy of managing cells with the packaging of an IC and peripheral components compatible with both contact-system and non-contact-system functions of signal transmission/reception in response to external apparatuses. This module is constituted by integrating an IC containing a memory or an IC containing a memory and a CPU, a contact mechanism for electric response to a first external device, a coupling mechanism for non-contact response to the first external device or a second external device, and a capacitor and/or secondary cell which is charged by an external charger via a contact mechanism and/or coupling mechanism and feeds power to the IC and the coupling mechanism.

Description

Description Composite IC module Technical field

The present invention is configured by integrating Ic for reading and writing data with an external device and processing the same, and a capacitor and / or a secondary battery for charging via a contact mechanism or a non-contact coupling mechanism. Related to the composite I c module. Background art

A commonly used IC card is a conventional IC card used for purposes such as automatic recognition and security, and is described in Japanese Patent Publication No. 53-691 published earlier by the present applicant. Something like that. As shown in FIGS. 1 and 2, this conventional IC card has an IC (Central Processing Unit) 3 having a memory 2 and a CPU (Central Processing Unit) 3 in a plastic card body 1 such as a credit card or an identification card. Integrated circuit).

By processing the input from the external device connected via the contact terminal 4 by the active element and outputting it as a new signal, it is possible to automatically and surely perform the collation and the transfer of the signal. It is used for credit cards, bank cards, debit cards, health cards, etc., and has a large amount of stored information, excellent confidentiality and flexibility of stored information, and extremely low risk of forgery. However, input / output is performed by contact with an external device such as a card reader via the contact terminal 4. It is unavoidable to be complicated.

Figs. 3 and 4 show a non-contact type IC card that eliminates such operational troubles and is an example of a built-in power supply. (Japanese Unexamined Patent Publication No. 51-212799). This card is a plastic book The printed circuit board or ceramic substrate on which a predetermined circuit such as a contact terminal 4 and a non-contact coupling coil 5 is formed on a body, and an IC chip are provided.

Some of these circuits have batteries and others have no batteries. In the system equipped with a battery, the battery is automatically turned on by a signal obtained from an external device, and the circuit operates.Therefore, there is no need to send power larger than the outside, and there are problems such as unnecessary radiation in radio wave management. It is desirable because it becomes lighter, but since it is a battery, it must be consumed and replaced in a few years, or the force itself must be discarded.

In the case of a batteryless non-contact IC card, a strong electromagnetic field is received by a receiving antenna from an applied voltage generator of an external device, and power obtained by rectification or detection is used. However, power is limited, so it is effective only for nearby applications, the usable distance is short, and it is inevitable that remote communication is not possible.

According to such a non-contact type IC card, information storage capacity, confidentiality, flexibility and speed are excellent. In addition to the advantages of the C card, the simplicity of operation that cannot be obtained by the contact type 《It is a very great advantage. In other words, the card carrier only needs to bring the card close to the sensor or the gate, and the information is read and identified, eliminating the need to insert the card into the card reader.

By embodying the contact-type function and the non-contact-type function on a single card in this way, both characteristics can be obtained at one time. (Japanese Patent Publication No. 4-1616831) is clear.

However, even if the above-mentioned IC card realizes the characteristics of both contact and non-contact types, it does not have a secondary battery and a large-capacity capacitor, so it is not possible to perform near or remote communication, and When attempting to perform the system charging, there is a problem that it is necessary to stay in the electromagnetic field for a long time and to induce a large voltage and electric power, which is not practical. Also, in the case of batteries using primary batteries, even if they are thin paper batteries or coin-shaped batteries, it will be necessary to replace them after about two years, and when using the embedded system, the card itself must be discarded. There is a problem that must be done. In order to solve the above problems, the present invention mounts Ic and peripheral parts corresponding to both contact type and non-contact type functions for transmitting and receiving signals in response to external devices, and An object of the present invention is to provide a composite Ic module that has extremely few malfunctions and reading errors and that is easy to manage the battery. Disclosure of the invention

To achieve the above object, the invention described in claim 1 includes an IC including a memory or an IC including a memory and a CPU, a contact mechanism for electrically responding to a first external device, A coupling mechanism for responding to the first external device or the second external device in a non-contact manner, and a rechargeable external charging device via the contact point mechanism and / or the coupling mechanism, and the coupling with the 1c. It is characterized in that either one of a capacitor or a secondary battery that supplies power to the mechanism is integrated with.

The invention described in claim 2 is an IC including a memory or an IC including a memory and a CPU, a contact mechanism for electrically responding to a first external device, and the first external device or A coupling mechanism for responding to the second external device in a non-contact manner, and a capacitor and a capacitor which are charged from an external charging device via the contact mechanism and / or the coupling mechanism and supply power to the IC and the coupling mechanism. It is characterized in that both of the secondary batteries and are integrated.

The invention described in claim 3 is characterized in that the condenser is an electric double layer capacitor.

The invention described in claim 4 is an interface section corresponding to the memory, the CPU, the contact mechanism for transmitting and receiving a signal in response to an external device, and the Z or the coupling mechanism. Are configured as one chip in the IC.

The invention according to claim 5 is characterized in that the coupling mechanism that sets the voltage of the external charging device supplied through the contact mechanism to be higher than the voltage supplied to the IC and responds in a non-contact manner is generated. It is characterized in that it is configured to take high transmission power.

The invention described in claim 6 is a card such as a cash card, a credit card, etc. It is characterized in that it is configured in a form.

The invention described in claim 7 is characterized in that the apparatus has a magnetic stripe capable of reading and writing or rewriting data by an external device. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a block diagram of a conventional contact type non-contact type IC card, FIG. 2 is a cross-sectional view of a conventional contact type IC card, and FIG. 3 is a conventional contact type non-contact type IC card. FIG. 4 is a block diagram of a conventional contact type non-contact type IC card. FIG. 4 is a perspective view showing the appearance and the inside of a conventional contact type non-contact type IC card. FIG. 5 is a first embodiment of the present invention. FIG. 6 is a block diagram of an IC card according to a second embodiment of the present invention, and FIG. 7 is a block diagram of an IC card according to a second embodiment of the present invention. FIG. 8 is a block diagram of an IC card according to another embodiment, FIG. 8 is a block diagram of another expression of the IC card according to the third embodiment of the present invention, and FIG. FIG. 10 is a block diagram of an IC chip module according to a third embodiment, and FIG. 10 is a block diagram showing a third embodiment of the present invention. FIG. 11 is an explanatory diagram for explaining a principle of performing charging and discharging in the embodiment. FIG. 11 is an external view and an internal view of an IC card according to the second to third embodiments of the present invention. FIG. BEST MODE FOR CARRYING OUT THE INVENTION

Next, a case where the composite IC module according to the embodiment of the present invention is applied to the form of an IC card will be described with reference to the drawings.

FIG. 5 is a block diagram of the IC card according to the first embodiment of the present invention. Hereinafter, the power supply unit will be mainly described. A high frequency oscillation voltage (current) for power supply is applied to a coupler 15 such as a coil antenna by a non-contact type external device 11. In the non-contact method, a voltage force is generated in the coil 5 of Ricard by the current flowing through the coil 15. Capacitor C1 and coil 5 are designed to be almost resonant. A resonance type in which the capacitor C1 is connected in series with the coil 5 may be used. The circuit part 6 of the card is a part for rectifying an alternating current, transmitting and receiving a signal, processing a signal, and storing the signal.

The coil 5 can be used in common for both reception and transmission, or a transmission coil can be separately provided to perform transmission with an external device.

In the contact method, a direct current is applied by the external device 12 through the contact terminal 4 and stored in a large-capacity capacitor C2 in the power supply, for example, an electric double layer capacitor. The signal is written and read via another line S.

The voltage applied to the capacitor C2 can be increased so that the power can be increased, and can be set separately from the voltage applied to I C.

FIG. 6 is a block diagram of a 1C card according to a second embodiment of the present invention. In this embodiment, a secondary battery, for example, a polymer battery b is mounted instead of the capacitor C2 in the first embodiment.

FIG. 7 is a block diagram of a 1C card according to a third embodiment of the present invention. The capacitor C 2 and the secondary battery b are connected via the control block 13, and when a direct current is applied from the external device 12 via the contact terminal 4, a sudden current is required. Is supplied with the current of the capacitor C2, and when a continuous current is required, the current of the secondary battery b is supplied. Also, due to the difference in charge and discharge characteristics, the capacitor C2 also plays a role in assisting the charging of the secondary battery b. Fig. 5-No. In the figure, the contact method and the non-contact method are shown with separate inputs and appear to be cut off by the circuit 6, but the power supplied and stored from the contact terminals supplies power to the circuit 6, Supplying an alternating current flowing through the coil leads to improved contactless performance.

FIG. 8 is a block diagram of an IC card in which the third embodiment is described for clarity. This indicates the case where the same capacitor C2 or secondary voltage b is applied to both the case of non-contact type high-frequency AC input and the case of direct-current application at the terminal. The capacitor C 2 and the secondary battery b are charged by the applied voltage 'current. Although the voltage is weak, the voltage induced by the non-contact coupling coil 5 is low. The pressure current is also rectified and charged to the capacitor C2 and the secondary battery b. With the power stored in the capacitor C2 and the secondary battery b, a large current can flow through the circuit 6 and the transmission coil 5, and a large signal can be sent back to the external circuit.

FIG. 9 is a block diagram of an IC chip according to the first to third embodiments. Shows the configuration when both contact and non-contact types are supported by one chip, and shows the case where the memory 2 and CPU 3 and the interface unit and power supply control unit that support contact and non-contact are configured by one chip . I1 is an interface unit corresponding to a non-contact type, and is composed of a 5P input unit corresponding to power supply and control and a 5S unit transmitting and receiving signals. I2 is an interface unit corresponding to the contact type, and is composed of a 4P input unit corresponding to power supply and control and a 4S unit transmitting and receiving signals. The signal is read from and written to the memory 2 via the CPU 3 via the interface unit.

FIG. 10 is an explanatory diagram for explaining the principle of performing charging from the outside and discharging to the outside in the third embodiment.

(a) shows the case where the internal battery or capacitor voltage V2 is charged by the external voltage V1. Since the voltage V 1> V 2, power is supplied from a high potential to a low potential.

(b) indicates that if the external voltage V3 is low or not present, power can be supplied to the outside with the internally charged voltage V2.

FIG. 11 is a perspective view showing an external appearance and an inside of a PC card according to the second to third embodiments. A contact terminal 4 is provided on the surface, and a non-contact coil 5, a capacitor C2, and a secondary battery b are provided inside.

IC cards using composite IC modules with the functions described above are used not only for financial applications such as credit cards, debit cards, and cash cards, but also for 1D cards, passports, medical charts, commuting It can be used for traffic / entrance certification, highways, and various other purposes. Industrial applicability

As described above, according to the present invention, an IC including a memory or an IC including a memory and a CPU, a contact mechanism for electrically responding to a first external device, and a first external device or A coupling mechanism for responding to the second external device in a non-contact manner, and a capacitor and a battery or a secondary battery charged from the external charging device through the contact mechanism and / or the coupling mechanism to supply power to the coupling mechanism and Ic. In addition, when the memory, the CPU, and the interface corresponding to the contact mechanism and the non-contact coupling mechanism are configured as a single chip, the following various effects can be obtained.

(1) There is no need to replace batteries like primary batteries, battery management is easy, and the battery can be used repeatedly for a long time after charging.

(2) Charging efficiency (charging speed) can be improved by utilizing the attached capacitor and secondary battery.

(3) It can be charged at any time while using the card.

(4) In the case of non-contact type, increase the transmission power, make the signal transmitted from the card stronger, and improve the SZN to eliminate malfunctions and reading errors.

(5) IC power <It can be configured with one chip, and cost can be reduced.

(6) — You can make a multi-purpose card with many uses.

Claims

The scope of the claims

1. An IC including a memory or an IC including a memory and a CPU; a contact mechanism for electrically responding to a first external device; and a non-contact response to the first external device or the second external device. And a capacitor or a secondary battery that is charged from an external charger through the contact mechanism and Z or the coupling mechanism and supplies power to the coupling mechanism via the coupling mechanism. A composite IC module characterized by comprising:

2. An IC including a memory or an IC including a memory and a CPU; a contact mechanism for electrically responding to a first external device; and a non-contact response to the first external device or the second external device. And a capacitor and a secondary battery that are charged from an external charging device via the contact mechanism and / or the coupling mechanism and supply power to the coupling mechanism and the coupling mechanism. A composite IC module characterized by being configured.

3. The composite IC module according to claim 1, wherein the capacitor is an electric double layer capacitor.

4. The memory, the CPU, and the interface unit corresponding to the contact mechanism and the coupling mechanism for transmitting and receiving signals in response to an external device are configured as one chip in the IC. The composite IC module according to any one of claims 1 to 3, characterized in that:

5. The voltage of the external charging device supplied through the contact mechanism is set higher than the voltage supplied to the IC, so that the transmission power generated by the coupling mechanism that responds in a non-contact manner can be increased. The composite IC Montyu J-Release according to any one of claims 1 to 4, characterized in that:

6. The composite IC module according to any one of claims 1 to 5, wherein the composite IC module is configured in a card form such as a cash card or a credit card.

7. The composite IC module according to claim 6, wherein the composite IC module has a magnetic stripe capable of reading, writing, and writing data by an external device.