JP2003216912A - Ic card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To write and read information without using an information writing/ reading device. <P>SOLUTION: When receiving via an antenna part 12 information to be written into a storage part 11 and a write request for writing this information into the storage part 11, a control part 14 writes this information into the storage part 11. When receiving via the antenna part 12 a read request for reading the information written in the storage part 11, the control part 14 reads the information based on the read request and transmits this information via the antenna part 12. In the state where other IC cards exist in a communicable range and when writing predetermined information onto the other IC cards, the control part 14 transmits the information and the write request via the antenna part 12. And when reading the information written on the other IC cards, the control part 14 transmits via the antenna part 12 the read request for reading the information. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC card equipped with an IC capable of writing and reading information, and more particularly to an IC card capable of writing and reading information in a non-contact state.

[0002]

2. Description of the Related Art In recent years, with the development of an information-oriented society, information is recorded on a card, and information management and payment using the card are performed.

In information management using such a card, a contactless IC card equipped with an IC capable of writing and reading information in a contactless state with respect to the card is excellent in convenience. Due to sex, it is rapidly spreading.

In a non-contact type IC card capable of writing and reading information in a non-contact state, an electromagnetic coupling system utilizing mutual induction of coils by an alternating magnetic field and an induced power by dielectric flux of two coils are used. Of the electromagnetic induction method that uses the or the microwave method of transmitting and receiving data by microwave, or between the card or label side and the external information writing / reading side antenna is charged by the capacitor principle. There are an electrostatic coupling method for performing communication by means of communication, and an optical method using near-infrared light blinking at high speed to use energy modulation of light.

FIG. 7 is a block diagram showing an example of the configuration of an IC card capable of writing and reading information in a non-contact state.

As shown in FIG. 7, the IC card according to the conventional example transmits / receives information between a storage unit 111 in which arbitrary information is written and an external information writing / reading device. Antenna section 112 and antenna section 11
A radio unit 113 that modulates information transmitted via the antenna 2 and demodulates information received via the antenna unit 112.
And outputs a response signal to the request signal when the request signal transmitted from the information writing / reading device is received,
The storage unit 111 includes a control unit 114 that controls writing and reading of information.

FIG. 8 is a diagram showing a configuration example of an information writing / reading device for writing and reading information to and from the IC card 100 shown in FIG.

As shown in FIG. 8, the information writing / reading apparatus in the conventional example has an antenna section 212 for transmitting and receiving information to and from the IC card 100, and an antenna section 21.
A radio unit 213 that modulates information transmitted via the antenna 2 and demodulates information received via the antenna unit 212.
Then, the control unit 21 which periodically outputs a request signal and writes or reads information to or from the IC card 100 when a response signal to the request signal is received.
4 and a power supply unit 215 that supplies power to the wireless unit 213 and the control unit 214.

A method of writing and reading information to and from the IC card 100 by the information writing / reading apparatus 200 configured as described above will be described below.

Control unit 214 of information writing / reading apparatus 200
In the above, in order to detect whether or not an IC card exists within a communicable range, a request signal is periodically output,
This request signal is modulated by the radio section 213 and transmitted as a radio signal via the antenna section 212.

When the IC card 100 is brought close to the information writing / reading device 200 while the request signal is transmitted from the information writing / reading device 200, the IC card 100
Electromagnetic induction occurs between the antenna section 112 of and the antenna section 212 of the information writing / reading device 200, whereby
From the antenna section 212 of the information writing / reading apparatus 200 to the IC
Power is supplied to the card 100 and information is written / written.
The request signal transmitted from the antenna unit 212 of the reading device 200 is received via the antenna unit 112 of the IC card 100 and demodulated by the wireless unit 113, and then the IC card 1
00 to the control unit 114.

Then, the control unit 114 of the IC card 100
, A response signal to the request signal is output, and this response signal is modulated by the radio unit 113, and the antenna unit 1
It is transmitted as a wireless signal via 12.

The response signal transmitted via the antenna section 112 of the IC card 100 is the information writing / reading device 200.
Is received via the antenna unit 212, then demodulated by the radio unit 213, and sent to the control unit 214 of the information writing / reading device 200.

Control unit 214 of information writing / reading apparatus 200
In (1), when the response signal transmitted from the IC card 100 is received, it is recognized that the IC card 100 exists within the communicable range.
Communication is performed between the reading device 200 and the IC card 100, and the information written in the storage unit 111 of the IC card 100 is read by the information writing / reading device 200 or the storage unit 111 of the IC card 100. Information is written by the information writing / reading device 200.

[0015]

However, in the conventional IC card as described above, the information is written inside or written inside by bringing the IC card close to a dedicated information writing / reading device. Since the stored information is read out, there is a problem that the IC card alone cannot write the information inside or read out the information written inside and use it.

The present invention has been made in view of the problems of the above-mentioned conventional technique, and is for information writing / writing.
An IC capable of writing and reading information without using a reading device, and using information written inside without using an information writing / reading device
The purpose is to provide a card.

[0017]

In order to achieve the above object, the present invention provides a storage means capable of writing and reading information, an antenna section for transmitting and receiving the information,
When the information to be written in the storage means and the write request for writing the information in the storage means are received via the antenna unit, the information is written into the storage unit, and the storage unit is sent via the antenna unit. An IC having at least a control means for reading information based on the read request from the storage means and transmitting the information via the antenna section when a read request for reading the information written in the memory is received. The card has power supply means for supplying power to the control means, and the control means is another IC.
When predetermined information is written to the other IC card in a state where the card exists in the communicable range, the information and the write request are transmitted through the antenna unit, and the other IC card When the information written in is read, the read request for reading the information is transmitted via the antenna unit.

Further, the control means reads the information written in the storage means and transmits the information together with the write request.

The control means has a display means for displaying predetermined information, and the control means is based on the information read from the other IC card and the information written in the storage means. It is characterized in that predetermined information is displayed on.

(Operation) In the present invention configured as described above, when the predetermined information is written in another IC card, the control means has the IC card in which the information is written within the communicable range. In this state, information to be written and a writing request for writing the information are transmitted via the antenna unit. Then, the information and the write request transmitted via the antenna unit are written in I
The data is received by the C card and the information is written in accordance with the received write request. Further, when reading the information written in another IC card, the control unit issues a read request for reading the information while the IC card in which the information to be read is written exists in a communicable range. It is transmitted via the antenna unit. Then, the read request transmitted via the antenna unit is received by the IC card in which the information to be read is written, and the information is read and transmitted according to the received read request. The information transmitted from the IC card from which the information has been read is received via the antenna section and given to the control means.

As described above, in an IC card capable of writing and reading information in response to a writing request and a reading request in a non-contact state, information to be written when writing predetermined information to another IC card is written. The predetermined information is written in the other IC card by transmitting the write request and is written in the other IC card by transmitting the read request when reading the information written in the other IC card. Since the read information is read out, the information is written in and read out from the IC card without using an information writing / reading device that writes and reads out information in the IC card in a non-contact state, or is written inside. The information can be used without using the information writing / reading device.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 shows the I of the present invention.
It is a block diagram which shows 1st Embodiment of a C card.

In this embodiment, as shown in FIG. 1, the IC card 1
A storage unit in which information that can identify 0, information that can identify an application that uses the IC card 10, information that is printed on the surface of the IC card 10, and the like, and that can write arbitrary information from the outside 11 and I
To transmit and receive information to and from a general information writing / reading device that writes and reads information in a non-contact state with another IC card or an IC card that is in close proximity to the C card 10. Of the antenna unit 12 and the information transmitted via the antenna unit 12, and the antenna unit 12
The wireless unit 13 that demodulates the information received via the wireless communication unit 13 outputs the request signal periodically, and writes the information to the IC card that transmits the response signal when the response signal to the request signal is received. Alternatively, reading is performed, and when a request signal transmitted from another IC card or an information writing / reading device that is close to the IC card 10 is received, a response signal to the request signal is output, and the storage unit The control unit 14 controls writing and reading of information to and from the wireless communication unit 11, and a power supply unit 15 that supplies power to the wireless unit 13 and the control unit 14.

The operation of the IC card configured as described above will be described below.

First, the writing and reading operations of information with respect to the IC card 10 by an information writing / reading device (not shown) provided outside will be described.

In the information writing / reading device, a request signal is periodically transmitted in order to detect whether or not an IC card exists within a communicable range.

When the IC card 10 is brought close to the information writing / reading device while the request signal is being transmitted from the information writing / reading device, the antenna part 12 of the IC card and the antenna part of the information writing / reading device. Electromagnetic induction occurs between the information writing / reading device and the information writing / reading device (not shown).
Power is supplied to the C card 10 and information is written / written.
The request signal transmitted from the reading device is received via the antenna unit 12 of the IC card 10, demodulated by the wireless unit 13, and then sent to the control unit 14 of the IC card 10.

Then, the control section 14 of the IC card 10 outputs a response signal to the request signal, the response signal is modulated by the radio section 13 and transmitted as a radio signal via the antenna section 12.

The response signal transmitted via the antenna section 12 of the IC card 10 is received by the information writing / reading device.

In the information writing / reading device, when the response signal transmitted from the IC card 10 is received,
It is recognized that the IC card 10 exists within the communicable range, and thereafter, the information writing / reading device and the IC card 10
Communication with the storage unit 11 of the IC card 10.
The information written / read out by the information writing / reading device or the information writing / reading in the storage unit 11 of the IC card 10.
Information is written by the reading device.

Further, writing and reading of information with respect to the IC card 10 by the above-mentioned information writing / reading device can also be performed by using a power source supplied from the power source section 15 in the IC card 10. In that case, it is not necessary to supply power to the IC card 10 from the information writing / reading device.

Next, information writing and reading operations between IC cards having the same structure as the IC card 10 will be described.

FIG. 2 is a diagram for explaining information writing and reading operations between IC cards having the same structure as the IC card 10 shown in FIG. The IC cards 10-1 and 10-2 shown in FIG. 2 each have the same configuration as the IC card 10 shown in FIG.

In the present embodiment, an operation of writing and reading information to and from the storage section 11-2 of the IC card 10-2 by the IC card 10-1 will be described as an example.

First, the operation when the IC card 10-1 writes information in the storage section 11-2 of the IC card 10-2 will be described.

In the control section 14-1 of the IC card 10-1, a request signal is periodically output to detect whether or not the IC card is present within the communicable range, and the request signal is transmitted wirelessly. The antenna unit 1 is modulated by the unit 13-1.
It is transmitted as a wireless signal via 2-1.

When the IC card 10-2 is brought close to the IC card 10-1 while the request signal is transmitted from the IC card 10-1, the antenna section 12-1 of the IC card 10-1 and the IC card 10- 2 antenna section 12-
Electromagnetic induction occurs between the IC card 10-1 and the IC card 10-2.
Is supplied with power, the request signal transmitted from the antenna unit 12-1 of the IC card 10-1 is received via the antenna unit 12-2 of the IC card 10-2, and the wireless unit 13-2 receives the request signal. After being demodulated, it is sent to the control unit 14-2 of the IC card 10-2.

Then, the control unit 14 of the IC card 10-2
At -2, a response signal to the request signal is output, the response signal is modulated by the wireless unit 13-2, and is transmitted as a wireless signal via the antenna unit 12-2.

The antenna section 12-2 of the IC card 10-2
The response signal transmitted via the control unit 1 of the IC card 10-1 is received by the antenna unit 12-1 of the IC card 10-1 and then demodulated by the wireless unit 13-1.
It is sent to 4-1.

In the control section 14-1 of the IC card 10-1, when the response signal transmitted from the IC card 10-2 is received, the IC card 1 is within the communicable range.
It is recognized that 0-2 exists, and then information to be written to the storage unit 11-2 of the IC card 10-2 and a write request for writing this information are output, and this information is transmitted to the wireless unit 13-. 1 is modulated and transmitted as a radio signal via the antenna unit 12-1. The IC card 10
-1 when writing the information written in the storage unit 11-1 of the IC card 10-2 into the storage unit 11-2 of the IC card 10-2,
In the control unit 14-1 of the card 10-1, the information written in the storage unit 11-1 of the IC card 10-1 is read out, modulated by the wireless unit 13-1, and the antenna unit 12-
Will be sent with the write request via 1.

The antenna section 12-1 of the IC card 10-1
The information transmitted via the wireless communication unit 13 is received via the antenna unit 12-2 of the IC card 10-2, and then the wireless unit 13
-2, demodulated by the control unit 14-2 of the IC card 10-2
Sent to 2.

In the control unit 14-2 of the IC card 10-2, the information demodulated by the wireless unit 13-2 is stored in the storage unit 11-in response to the write request demodulated by the wireless unit 13-2.
Written to 2.

Next, the storage section 11- of the IC card 10-2
The operation when the information written in 2 is read by the IC card 10-1 will be described.

In the control section 14-1 of the IC card 10-1, a request signal is periodically output to detect whether or not the IC card is present within the communicable range, and the request signal is transmitted wirelessly. The antenna unit 1 is modulated by the unit 13-1.
It is transmitted as a wireless signal via 2-1.

When the IC card 10-2 is brought close to the IC card 10-1 while the request signal is transmitted from the IC card 10-1, the antenna section 12-1 of the IC card 10-1 and the IC card 10- 2 antenna section 12-
Electromagnetic induction occurs between the IC card 10-1 and the IC card 10-2.
Is supplied with power, the request signal transmitted from the antenna unit 12-1 of the IC card 10-1 is received via the antenna unit 12-2 of the IC card 10-2, and the wireless unit 13-2 receives the request signal. After being demodulated, it is sent to the control unit 14-2 of the IC card 10-2.

Then, the control unit 14 of the IC card 10-2
At -2, a response signal to the request signal is output, the response signal is modulated by the wireless unit 13-2, and is transmitted as a wireless signal via the antenna unit 12-2.

The antenna section 12-2 of the IC card 10-2
The response signal transmitted via the control unit 1 of the IC card 10-1 is received by the antenna unit 12-1 of the IC card 10-1 and then demodulated by the wireless unit 13-1.
It is sent to 4-1.

In the control section 14-1 of the IC card 10-1, when the response signal transmitted from the IC card 10-2 is received, the IC card 1 is within the communicable range.
It is recognized that 0-2 exists, and thereafter, a read request for reading the information written in the storage unit 11-2 of the IC card 10-2 is output, and the read request is issued by the wireless unit 1.
The signal is modulated by 3-1 and transmitted as a radio signal via the antenna unit 12-1.

Antenna section 12-1 of IC card 10-1
The read request transmitted via the IC card 10-2 is received via the antenna unit 12-2 of the IC card 10-2, then demodulated by the wireless unit 13-2, and the control unit 1 of the IC card 10-2.
It is sent to 4-2.

In the control unit 14-2 of the IC card 10-2, the information written in the storage unit 11-2 is read and output in response to the read request demodulated by the wireless unit 13-2. To be done.

The information output from the control section 14-2 of the IC card 10-2 is modulated by the radio section 13-2 and transmitted as a radio signal via the antenna section 12-2.

The antenna section 12-2 of the IC card 10-2
The information transmitted via the wireless communication unit 13 is received via the antenna unit 12-1 of the IC card 10-1 and then transmitted to the wireless unit 13.
-1 demodulates and the control unit 14 of the IC card 10-1
1 and the information written in the storage unit 11-2 of the IC card 10-2 is read by the IC card 10-1.

When the information read by the IC card 10-1 is written in the storage unit 11-1 of the IC card 10-1, the wireless unit 13-in the control unit 14-1 of the IC card 10-1. The information demodulated in 1 is written in the storage unit 11-1 of the IC card 10-1.

In the above-mentioned operation, the antenna section 12-1 of the IC card 10-1 and the IC card 10-2.
The case where power is supplied from the antenna unit 12-1 of the IC card 10-1 to the IC card 10-2 by the electromagnetic induction generated between the IC card 10-2 and the antenna unit 12-2 is described. It may be possible that the IC card 10-2 is operated by a power source supplied from a power source section 15-2 provided in the IC card 10-2.

The method of using the above-mentioned IC card will be described below with reference to specific examples.

FIG. 3 is a diagram for explaining a method of using the IC card shown in FIGS. 1 and 2. The internal structure of the business cards 1-1 and 1-2 shown in FIG. 3 is the same as that of the IC shown in FIG.
It has the same internal configuration as the cards 10-1 and 10-2.

As shown in FIG. 3, business card information is printed on the surfaces of the IC cards 10-1 and 10-2 having the configuration shown in FIG. 2 to create business cards 1-1 and 1-2. Further, the business card information printed on the surfaces of the business cards 1-1 and 1-2 is also written in the storage units 11-1 and 11-2 of the business cards 1-1 and 1-2.

Business cards 1-1, 1-configured as described above
When exchanging business cards using 2, the business card 1-1 and the business card 1-
2 and 2 are brought close to each other.

Then, the IC card 10-as described above
By the operations of 1 and 10-2, the storage unit 11 of the business card 1-1
The business card information of the business card 1-1 written in -1 is the business card 1-2.
Of the business card 1-2 while being written in the storage unit 11-2 of
The business card information of the business card 1-2 written in the storage unit 11-2 is written in the storage unit 11-1 of the business card 1-1.

After that, in the information writing / reading device capable of reading the information written in the storage sections 11-1, 11-2 of the IC cards 10-1, 10-2, the business card 1-
By reading the business card information written in the storage units 11-1 and 11-2 of Nos. 1 and 1-2, respectively, it is possible to obtain the business card information of the other party who exchanged the business cards. In addition, business card 1
It goes without saying that a plurality of business card information can be written in the storage units 11-1 and 11-2 in -1, 1-2.

As described above, by using the business card including the IC card having the configuration shown in FIGS. 1 and 2, the business card information obtained by exchanging the business card can be acquired as electronic data, and one business card can be obtained. Can hold multiple business card information.

(Second Embodiment) FIG. 4 shows the I of the present invention.
It is a block diagram which shows 2nd Embodiment of a C card.

In this embodiment, as shown in FIG. 4, the IC card 2
A storage unit in which information that can identify 0, information that identifies an application that uses the IC card 20, information that is printed on the surface of the IC card 20, and the like can be written externally. 21 and I
To transmit / receive information to / from a general information writing / reading device that writes and reads information in a non-contact state with another IC card or an IC card in proximity to the C card 20 Of the antenna unit 22 and the information transmitted via the antenna unit 22 are modulated, and the antenna unit 22
The wireless unit 23 for demodulating the information received via the display unit 26, the display unit 26 for displaying the predetermined information, the request signal periodically output, and the response when the response signal to the request signal is received. Information is written to or read from the IC card that has transmitted the signal, and further, a request is made when a request signal transmitted from another IC card or an information writing / reading device in proximity to the IC card 20 is received. It outputs a response signal to the signal and controls writing and reading of information to and from the storage unit 21.
Control unit 24 for controlling the display on the display unit 26 based on the information demodulated in 3 and the information written in the storage unit 21, and a power supply for supplying power to the wireless unit 23, the control unit 24 and the display unit 26. And a section 25.

The operation of the IC card configured as described above will be described below.

First, the operation of writing / reading information to / from the IC card 20 by an external information writing / reading device (not shown) will be described.

In the information writing / reading device, the request signal is periodically transmitted to detect whether or not the IC card exists within the communicable range.

When the IC card 20 is brought close to the information writing / reading device while the request signal is being transmitted from the information writing / reading device, the antenna part 22 of the IC card and the antenna part of the information writing / reading device. Electromagnetic induction occurs between the information writing / reading device and the information writing / reading device (not shown).
Power is supplied to the C card 20 and information is written / written.
The request signal transmitted from the reading device is received via the antenna unit 22 of the IC card 20, demodulated by the wireless unit 23, and then sent to the control unit 24 of the IC card 20.

Then, the control section 24 of the IC card 20 outputs a response signal to the request signal, the response signal is modulated by the radio section 23 and transmitted as a radio signal via the antenna section 22.

The response signal transmitted via the antenna section 22 of the IC card 20 is received by the information writing / reading device.

In the information writing / reading device, when the response signal transmitted from the IC card 20 is received,
It is recognized that the IC card 20 exists within the communicable range, and thereafter, the information writing / reading device and the IC card 20.
Communication with the storage unit 21 of the IC card 20.
The information written / read out by the information writing / reading device or the information writing / reading in the storage unit 21 of the IC card 20.
Information is written by the reading device.

Further, writing and reading of information with respect to the IC card 20 by the above-mentioned information writing / reading device can also be performed by using a power source supplied from the power source section 25 in the IC card 20. In that case, it is not necessary to supply power to the IC card 20 from the information writing / reading device.

Next, information writing and reading operations between IC cards having the same structure as the IC card 20 will be described.

FIG. 5 is a diagram for explaining information writing and reading operations between IC cards having the same configuration as the IC card 20 shown in FIG. The IC cards 20-1 and 20-2 shown in FIG. 5 have the same configuration as the IC card 20 shown in FIG.

In the present embodiment, an operation of writing and reading information to and from the storage section 21-2 of the IC card 20-2 by the IC card 20-1 will be described as an example.

First, the operation when the IC card 20-1 writes information in the storage section 21-2 of the IC card 20-2 will be described.

In the control unit 24-1 of the IC card 20-1, a request signal is periodically output to detect whether or not the IC card is present within the communicable range, and the request signal is transmitted wirelessly. The antenna section 2 is modulated by the section 23-1.
It is transmitted as a wireless signal via 2-1.

When the IC card 20-2 is brought close to the IC card 20-1 while the request signal is transmitted from the IC card 20-1, the antenna section 22-1 of the IC card 20-1 and the IC card 20- 2 antenna section 22-
2 causes electromagnetic induction, which causes the antenna section 22-1 of the IC card 20-1 to pass through the IC card 20-2.
Is supplied with power, the request signal transmitted from the antenna unit 22-1 of the IC card 20-1 is received via the antenna unit 22-2 of the IC card 20-2, and the wireless unit 23-2 receives the request signal. After being demodulated, it is sent to the control unit 24-2 of the IC card 20-2.

Then, the control unit 24 of the IC card 20-2
At -2, a response signal to the request signal is output, the response signal is modulated by the wireless unit 23-2, and is transmitted as a wireless signal via the antenna unit 22-2.

The antenna section 22-2 of the IC card 20-2
The response signal transmitted via the control unit 2 of the IC card 20-1 is received by the antenna unit 22-1 of the IC card 20-1 and then demodulated by the radio unit 23-1.
It is sent to 4-1.

In the control section 24-1 of the IC card 20-1, when the response signal transmitted from the IC card 20-2 is received, the IC card 2 is within the communicable range.
It is recognized that 0-2 exists, and thereafter, information to be written in the storage unit 21-2 of the IC card 20-2 and a write request for writing this information are output, and this information is transmitted to the wireless unit 23-. 1 is modulated and transmitted as a radio signal via the antenna unit 22-1. The IC card 20
-1 when the information written in the storage unit 21-1 of the IC card 20-2 is written in the storage unit 21-2 of the IC card 20-2.
In the control unit 24-1 of the card 20-1, the information written in the storage unit 21-1 of the IC card 20-1 is read out, modulated by the radio unit 23-1, and the antenna unit 22-
Will be sent with the write request via 1.

Antenna section 22-1 of IC card 20-1
The information transmitted via the wireless communication unit 23 is received via the antenna unit 22-2 of the IC card 20-2, and then the wireless unit 23.
-2, and the control unit 24-of the IC card 20-2 is demodulated.
Sent to 2.

In the control unit 24-2 of the IC card 20-2, the information demodulated by the wireless unit 23-2 is stored in the storage unit 21- in response to the write request demodulated by the wireless unit 23-2.
Written to 2.

Next, the storage section 21- of the IC card 20-2
The operation when the information written in 2 is read by the IC card 20-1 will be described.

In the control unit 24-1 of the IC card 20-1, a request signal is periodically output to detect whether or not the IC card exists within the communicable range, and the request signal is transmitted wirelessly. The antenna section 2 is modulated by the section 23-1.
It is transmitted as a wireless signal via 2-1.

When the IC card 20-2 is brought close to the IC card 20-1 while the request signal is transmitted from the IC card 20-1, the antenna section 22-1 of the IC card 20-1 and the IC card 20- 2 antenna section 22-
2 causes electromagnetic induction, which causes the antenna section 22-1 of the IC card 20-1 to pass through the IC card 20-2.
Is supplied with power, the request signal transmitted from the antenna unit 22-1 of the IC card 20-1 is received via the antenna unit 22-2 of the IC card 20-2, and the wireless unit 23-2 receives the request signal. After being demodulated, it is sent to the control unit 24-2 of the IC card 20-2.

Then, the control unit 24 of the IC card 20-2
At -2, a response signal to the request signal is output, the response signal is modulated by the wireless unit 23-2, and is transmitted as a wireless signal via the antenna unit 22-2.

The antenna section 22-2 of the IC card 20-2
The response signal transmitted via the control unit 2 of the IC card 20-1 is received by the antenna unit 22-1 of the IC card 20-1 and then demodulated by the radio unit 23-1.
It is sent to 4-1.

In the control section 24-1 of the IC card 20-1, when the response signal transmitted from the IC card 20-2 is received, the IC card 2 is within the communicable range.
It is recognized that 0-2 exists, and then a read request for reading the information written in the storage unit 21-2 of the IC card 20-2 is output, and this read request is transmitted to the wireless unit 2
The signal is modulated by 3-1 and transmitted as a radio signal via the antenna unit 22-1.

Antenna section 22-1 of IC card 20-1
The read request transmitted via the IC card 20-2 is received via the antenna unit 22-2 of the IC card 20-2 and then demodulated by the wireless unit 23-2, and the control unit 2 of the IC card 20-2.
It is sent to 4-2.

In the control unit 24-2 of the IC card 20-2, the information written in the storage unit 21-2 is read and output in response to the read request demodulated by the radio unit 23-2. To be done.

The information output from the control unit 24-2 of the IC card 20-2 is modulated by the wireless unit 23-2 and transmitted as a wireless signal via the antenna unit 22-2.

The antenna section 22-2 of the IC card 20-2
The information transmitted via the radio unit 23 is received via the antenna unit 22-1 of the IC card 20-1.
-1 demodulates and the control unit 24-of the IC card 20-1
1 and the information written in the storage unit 21-2 of the IC card 20-2 is read by the IC card 20-1.

When the information read by the IC card 20-1 is written in the storage unit 21-1 of the IC card 20-1, the wireless unit 23-in the control unit 24-1 of the IC card 20-1. The information demodulated in 1 is written in the storage unit 21-1 of the IC card 20-1.

In the operation described above, the antenna section 22-1 of the IC card 20-1 and the IC card 20-2
The case where power is supplied to the IC card 20-2 from the antenna unit 22-1 of the IC card 20-1 by the electromagnetic induction generated between the IC card 20-2 and the antenna unit 22-2 is described. It may be possible that the IC card 20-2 is operated by the power supplied from the power supply unit 25-2 provided in the IC card 20-2.

The method of using the above-mentioned IC card will be described below with reference to specific examples.

FIG. 6 is a diagram for explaining a method of using the IC card shown in FIGS. 4 and 5. The internal structure of the trading cards 2-1 and 2-2 shown in FIG.
The internal configuration of the IC cards 20-1 and 20-2 shown in FIG. 5 is the same.

As shown in FIG. 6, predetermined images and information are printed on the surfaces of the IC cards 20-1 and 20-2 having the structure shown in FIG.
Create 1 and 2 Also, trading card 2
Trading information corresponding to the types of trading cards 2-1 and 2-2 is written in the storage units 21-1 and 21-2 of -1 and 2-2.

When playing a trading game using the trading cards 2-1 and 2-2 configured as described above, the trading card 2-1 and the trading card 2-2 are brought close to each other.

Then, the IC card 20-as described above
Trading Card 2
Trading information of the trading card 2-1 written in the storage unit 21-1 of -1 is read by the trading card 2-2, and the trading card 2 written in the storage unit 21-2 of the trading card 2-2. -2 trading information is read by the trading card 2-1.

In the trading card 2-1,
In the control unit 24-1 of the trading card 2-1, the trading information read from the trading card 2-2 and the trading information of the trading card 2-1 written in the storage unit 21-1 are compared, The win or loss is judged according to the rules of a trading game using trading cards.

When the trading information of the trading card 2-1 written in the storage unit 21-1 is the one overwriting the trading information read from the trading card 2-2, the control unit 24-1 controls the trading information. The display unit 26-1 displays that “win”.

If the trading information read from the trading card 2-2 is the one overwriting the trading information of the trading card 2-1 written in the storage unit 21-1, the control unit 24-1 By the control, the fact that the player is "losing" is displayed on the display unit 26-1.

On the other hand, in the trading card 2-2 as well, the trading card read out from the trading card 2-1 and the trading card written in the storage unit 21-2 in the control unit 24-2 of the trading card 2-2. The trading information of 2-2 is compared and the winning or losing thereof is judged.

When the trading information of the trading card 2-2 written in the storage section 21-2 is the one overwriting the trading information read from the trading card 2-1, the control section 24-2 controls the trading information. The fact that it is a "win" is displayed on the display unit 26-2.

When the trading information read from the trading card 2-1 is the one overwriting the trading information of the trading card 2-2 written in the storage unit 21-2, the control unit 24-2 By the control, the fact that the player is "losing" is displayed on the display unit 26-2.

As described above, when the trading card composed of the IC card having the structure shown in FIGS. 4 and 5 is used, it is possible to bring the trading cards close to each other.
The result will be automatically judged and displayed.

The IC card 1 shown in FIG. 1 and FIG.
0 and 20 are equipped with a switch (not shown) that can be operated from the outside, and the power is turned off when not in use.
It is preferable to be configured so that the state can be set. Further, in that case, it is preferable to provide display means such as an LED lamp for displaying the ON state so that the ON state can be visually recognized.

[0109]

As described above, in the present invention,
A storage unit capable of writing and reading information, an antenna unit for transmitting and receiving information, information to be written in the storage unit and a write request for writing the information in the storage unit are received via the antenna unit. In this case, this information is written in the storage means, and when a read request for reading the information written in the storage means is received via the antenna section, the information based on the read request is read from the storage means and the information is read by the antenna. In an IC card having at least control means for transmitting data via a section, a power supply means for supplying power to the control means is provided, and further, in the control means, another IC card exists in a communicable range. In the case of writing predetermined information to another IC card, the information and the write request are transmitted through the antenna unit, and the other IC card Since a read request for reading the information when reading the written information is configured to be transmitted via the antenna unit, the information in a non-contact state writes and reads information from or to the IC card write /
Information can be written to and read from the IC card without using a reading device.

Further, a display means for displaying predetermined information is provided, and the control means displays the predetermined information on the display means based on the information read from another IC card and the information written in the storage means. With the display configuration, the information written in another IC card can be used without using the information writing / reading device.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of an IC card of the present invention.

FIG. 2 is a diagram for explaining information writing and reading operations between IC cards having the same configuration as the IC card shown in FIG.

FIG. 3 is a diagram for explaining a method of using the IC card shown in FIGS. 1 and 2.

FIG. 4 is a block diagram showing a second embodiment of an IC card of the present invention.

5A and 5B are diagrams for explaining information writing and reading operations between IC cards having the same configuration as the IC card shown in FIG.

FIG. 6 is a diagram for explaining a method of using the IC card shown in FIGS. 4 and 5.

FIG. 7 is a block diagram showing a configuration example of an IC card capable of writing and reading information in a non-contact state.

8 is a diagram showing a configuration example of an information writing / reading device for writing and reading information to and from the IC card shown in FIG.

[Explanation of symbols]

1-1,1-2 Business Card 2-1, 2-2 Trading Card 10, 10-1, 10-2, 20, 20-1, 20-2
IC cards 11, 11-1, 11-2, 21, 21-1, 21-2
Storage unit 12, 12-1, 12-2, 22, 22-1, 22-2
Antenna parts 13, 13-1, 13-2, 23, 23-1, 23-2
Radio units 14, 14-1, 14-2, 24, 24-1, 24-2
Control unit 15, 15-1, 15-2, 25, 25-1, 25-2
Power supply unit 26, 26-1, 26-2 Display unit

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2C001 AA13 BA08 CB00 CB02 CB06                       CB08 DA06                 2C005 MA40 MB01 MB10 NA09 QA00                       SA04 SA08                 5B035 AA00 BB09 CA04 CA06 CA11                       CA23

Claims (3)

[Claims] 1. A storage unit capable of writing and reading information, an antenna unit for transmitting and receiving the information, information to be written in the storage unit via the antenna unit, and the information in the storage unit. Based on the read request, when the write request for writing is received, the information is written in the storage unit, and when the read request for reading the information written in the storage unit is received via the antenna unit. An IC card comprising at least a control unit for reading information from the storage unit and transmitting the information via the antenna unit, the IC card having a power supply unit for supplying power to the control unit. , When other IC card exists within the communicable range and the predetermined information is written to the other IC card, the information and the write requirement The antenna unit transmits through the, IC card, characterized in that said read request for reading the information in the case of reading information the written in another IC card to transmit via the antenna unit. 2. The IC card according to claim 1, wherein the control unit reads the information written in the storage unit and transmits the information together with the write request. 3. The IC card according to claim 1, further comprising display means for displaying predetermined information, wherein the control means writes information read from the other IC card and the storage means. The predetermined information is displayed on the display means based on the stored information I
C card.