JP3377138B2 - IC card system, IC card, data carrier and host terminal - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention utilizes an IC card.
IC card system and IC card and data carrier
It concerns the rear and host side terminals .

[0002]

2. Description of the Related Art I attracting attention as a next-generation card
The C card has a large memory capacity as compared with a card using a conventional magnetic tape, and is highly safe because it is difficult to decipher and forge data. However, in the conventional system, even though the IC card having the ability to store an order of magnitude larger data than the magnetic card is used, one card stores only the information necessary for one system. It could not be shared with multiple systems. This means that in order to share the card with other systems, not only the hardware such as the card and the reader / writer (R / W) of the system terminal but also the software such as the information storage and transmission method must be unified. It was because of the huge cost. As a result, as IC cards have become popular, many cards have to be carried, and thin cards are bulky and inconvenient to carry around. Therefore, there is a strong demand for a method of utilizing the characteristics of IC cards. It was

On the other hand, a card system in which an IC card and a host-side R / W can communicate with each other in a non-contact manner has become widespread in recent years.
FIG. 5 shows types of non-contact type IC cards and communication distances. The communication distance of the proximity type card is 1 mm or less for the capacitive coupling type and 3 mm or less for the electromagnetic coupling type. On the other hand, in the remote type, the medium-wave band wireless type is about 1 m or less, and the microwave band wireless type is about 5 to 6 m or less. These non-contact type cards have the feature that they do not have to worry about the corrosion and reliability of the electrode contacts, and since the wireless card allows the system to be used without being inserted into or removed from the R / W, It is considered to be the mainstream of IC cards.

A hybrid card having the functions of a remote type and a proximity type non-contact type IC card is also proposed by utilizing the characteristics of each of these cards (Japanese Patent Application No. 6-175).
No. 264). FIG. 6 shows, as an example of a hybrid card, an example having functions of a proximity type electromagnetic coupling type and a remote type microwave band wireless type. 1 is a hybrid card,
2 coils for proximity communication, inter-safe <br/> Eisu circuit for proximity communication is 3, the antenna for telecommunications 4, the modem circuit for telecommunications 5, 6 made of CPU · memory circuit Part 7 is a coin-type lithium battery. With such a hybrid card, several meters of near field communication is possible at the same time as several meters of remote communication between the R / W of the host side terminal and the card. On the other hand, a multi-function card including a contactless IC card and an input / output device such as a sounder or a button has also been proposed (Japanese Patent Application No. 6-191364).

FIG. 7 shows a microwave band wireless type multifunction IC.
Here is an example of a card. Reference numeral 11 is a multifunction IC card, 12 is a liquid crystal display, 13 is a button switch, 14 is an input ten-key pad, and 15 is a sounder. Although only the appearance is shown in this figure, a patch antenna for telecommunications, a modulation / demodulation circuit, a circuit unit including a CPU and a memory, a battery, and the like are provided inside. With this multi-function card, the contents of instructions from the system can be displayed on the liquid crystal display 12, and the information notification from the system can be notified by the sounder 15. Also, the state of the card can be changed by using the input button or ten keys.

[0006]

However, in a remote type wireless IC card, if a plurality of cards are put in a pocket at the same time, the cards may not function or the cards of unrelated systems may malfunction. It was happening. As a result, even if the system using the wireless IC card becomes widespread, in the conventional form in which one card of one system is compatible, the greatest feature is that it can be used without inserting it into the R / W. I couldn't make use of it. Also,
Being bulky with a number of non-contact cards is exactly the same as a contact card, with multiple I
There was a strong demand for sharing cards with the C-card system.

The IC card system according to the present invention uses the IC card only when the system user owns one data carrier without enormous cost of unifying hardware and software of a plurality of systems. The purpose is to realize a system that can access multiple systems.

[0008]

[Means for Solving the Problems] Claim 1 according to the present invention
Is an IC card system having IC data, a data carrier, and a terminal on the host side. The IC card includes a communication means for communicating with the data carrier and the terminal on the host side.
The host side terminal includes a communication means for communicating with the card and the host side terminal, and a memory storing at least one piece of information required for each individual system, and the host side terminal communicates with the IC card and the data carrier. The host side terminal transmits system identification information to the data carrier, the data carrier recognizes a system by the system identification information, and provides necessary information for each system corresponding to the system. By transmitting to the IC card, the IC card transmits the obtained necessary information for each system to the host side terminal,
The system is configured to be usable.

An IC card system according to claim 2
The IC card system includes an IC card, a data carrier, and a host-side terminal, and the IC card includes a communication unit for communicating with the data carrier and the host-side terminal, and an input unit for inputting system identification information. The data carrier includes a communication unit that communicates with the IC card, and a memory that stores at least one information required for each individual system, and the host-side terminal communicates with the IC card. Means for transmitting the system identification information input from the input means to the data carrier, the data carrier identifying the system by the system identification information, and corresponding to the system. The information required for each system is
The system can be used by transmitting the information to the C card, and the IC card transmitting the obtained necessary information for each system to the host side terminal.

An IC card system according to claim 3
The system is configured such that, in the IC card system according to claim 1 or 2, necessary information for each system on the IC card is erased after a process for using the system is completed. It is what

An IC card according to a fourth aspect is I
Communicates with C card , IC card and host side terminal
Communication means and individual systems require less information
And a data carrier with a memory stored therein ,
Communication means for communicating with IC card and data carrier
An IC card applied to the IC card system having a host-side terminal having a comprises a communication means for communicating with the data carrier and the host terminal, the
System in which the host terminal transmits to the data carrier
The identification information allows the data carrier to identify the system
For each of the above systems that correspond to the system
It receives information necessary, 必each obtained the system
By sending the main information to the host terminal, those
The system is configured to be usable .

An IC card according to a fifth aspect of the invention is I
Individual communication means to communicate with C card and IC card
Stored at least one required information for each system
Communication between a data carrier equipped with a memory and an IC card
IC having a host-side terminal equipped with communication means for communicating
System an IC card which is applied to a card system, a communication unit for communicating with the data carrier and the host-side terminal comprises an input means for inputting a system identification information, which is input from the entering-force means Identification information before
It is transmitted to the data carrier and the system identification information is used.
The data carrier identified and transmitted the system,
Receiving information necessary for each of the system corresponding to the system, by sending the information required for each obtained the system Previous <br/> Symbol host terminal, of the system
It is configured to be usable . The data carrier according to claim 6 is a data carrier.
I and a communication means for communicating with the host side terminal
C card , data carrier , IC card and data
A data carrier applied to an IC card system having a host-side terminal equipped with a communication means for communicating with a carrier, and a communication means for communicating with the host-side terminal and the IC card, and for each individual system A memory that stores at least one required information, receives the system identification information transmitted by the host side terminal, identifies the system by the system identification information, and is required for each system corresponding to the system. The IC card was obtained by transmitting various information to the IC card .
Send necessary information for each system to the host side terminal
The system is configured so that the user can use the system . The data carrier according to claim 7 communicates with the data carrier and the host-side terminal.
Communication means and input means for inputting system identification information.
IC card provided , data carrier , IC card
A data carrier applied to an IC card system having a host-side terminal equipped with a communication means for performing communication between the IC card and the communication means for performing communication with the IC card, and at least 1 required information for each individual system. One stores the provided with a memory, wherein the IC card has sent, the entering force
The IC card is obtained by receiving the system identification information input from the means, identifying the system by the system identification information, and transmitting necessary information for each system corresponding to the system to the IC card. Was
Send necessary information for each system to the host side terminal
The system is configured so that the user can use the system . The host-side terminal according to claim 8 communicates with the data carrier and the host-side terminal.
IC card equipped with communication means , IC card and host
For each communication system and individual system that communicates with the side terminal
And <br/> data carrier that includes a memory information storing at least one required, a host terminal which is applied to an IC card system having a host-side terminal, communication with the IC card and the data carrier includes a communication means for transmits the system identification information to the data carrier, said data carrier by said system identification information
The system that identified the system and sent it to the IC card
The information required for each system corresponding to the system
By receiving from the IC card,
It is configured to be usable .

[0013]

The present invention provides an IC card system, an IC card,
Billing for each of the data carrier and host side terminal
By adopting the configuration as described in the section, it becomes possible to use a plurality of IC card systems with one data carrier that stores information used in a plurality of systems. Furthermore, by erasing the information transmitted to the card after use, the card unique to each system can be made into a shared card for all people installed in the system, thus eliminating the need for individuals to carry the card around. Further, if only the interface between the data carrier and the card is unified, the interface between the card and the host side can remain unique to each system, and there is no need to change the hardware or software of the system.

Further, by transmitting the necessary information between the data carrier and the IC card and transmitting information for system identification from the host side terminal to the data carrier by wireless communication, these operations can be troublesome. It's gone, with the same procedure as when using a normal card system,
A system that can use an IC card becomes possible. Further, since it is not necessary to take out the data carrier storing important information when using the card, it is possible to reduce the chances of losing the data carrier and realize a system with higher safety. By combining these actions, it is possible to realize a highly secure IC card system at a low cost by simply carrying a single data carrier with a conventional operation procedure.

[0015]

[Embodiment 1] FIG. 1 shows an embodiment (embodiment 1) of a card system according to the present invention, which utilizes a hybrid card having the functions of both a remote type and a proximity type non-contact IC card. Two
An operation example of the first embodiment is shown in FIG. In these figures,
1A is a hybrid card installed in each system, 21 is a data carrier, 22 and 22A are hosts, 2
3,23A the host terminal, the proximity type of host side R / W, 2 denotes a coil for proximity communication 24, interns face circuit for proximity communication is 3, 25 of the remote type host R / W, Reference numeral 4 is an antenna for remote communication, 5 is a modulation / demodulation circuit for remote communication, 6 is a circuit section including a CPU and a memory,
7 is a coin-type lithium battery. Data carrier 21
As long as it has a function capable of communicating with the host-side terminal and the IC card, the shape and size thereof are not limited.

In this embodiment, the host side terminals 23, 23A
System identification information from the data carrier 21 to the data carrier 21 and necessary information from the data carrier 21 to the hybrid card 1, 1A by remote type microwave communication, and from the hybrid card 1, 1A to the host side terminal 2
An example is shown in which information is transmitted to 3, 23A by proximity type electromagnetic coupling communication, but these types of communication are performed by non-contact communication of all types shown in FIG. 1 or via contact type electrode terminals. Even if the communication is performed, the number of operations during use increases, but the function of the system does not change at all. Also, an example is shown in which the communication between the data carrier 21 and the host side terminals 23 , 23A and the communication between the hybrid cards 1, 1A are performed by the same type of communication, but these are performed by different methods of communication. However, it goes without saying that there is no problem at all.

Next, the operation will be described. In FIG. 2, A to D are data stored in the data carrier 21 and required by different IC card systems (see FIG. 2).
(A)). Assuming that the information necessary for the system using the hybrid card 1 is B, the host side terminal 23 sends the system identification code b to the data carrier 21 from the remote side host side R / W 25 by wireless communication (see FIG. 2).
(B)), the data carrier 21 identifying the system is
The required data B is wirelessly transmitted to the hybrid card 1 installed in the system (FIG. 2 (c)). The hybrid card 1 which has obtained the information B necessary for using the system sends the information to the host-side R / W 24 of the proximity type of the host-side terminal 23 to use the system as in the conventional card system (see FIG. )). After using the hybrid card 1, the host-side terminal 23 erases the data B sent from the data carrier 21 on the hybrid card 1 (FIG. 2 (e)). When a person who has the same data carrier 21 and hybrid card 1 wants to use another system that requires data D, for example, the system identification code is set to d in the above example, and the hybrid card from the data carrier 21 is used. If the data sent to 1 is replaced with D, the system can be used in the same procedure. [Embodiment 2] FIG. 3 shows an embodiment (embodiment 2) of an IC card system using the hybridized multifunction card according to the present invention.
FIG. 4 shows an operation example of the second embodiment. Reference numeral 21 is a data carrier, 31 is a hybrid card multi-function card having contact and remote type communication functions, 22 and 22A are hosts, 23 and 23A are host side terminals, and 32 is contact type host side R / W , interns phosphate <br/> scan circuit of contactless R / W 33, 34 are contact electrodes of the multi-function card 31, 4
Is an antenna for remote communication, 5 is a modulation / demodulation circuit for remote communication, 6 is a circuit section including a CPU and a memory, 7 is a coin-type lithium battery, 12 is a liquid crystal display, 13 is a button switch, 14 is an input numeric keypad, 15 Is a sounder.

In the present embodiment, an example of the remote type wireless communication and the contact type communication via the terminal is shown as the communication between the multi-function card 31, the data carrier 21 and the host side terminals 23, 23A. As in the case of the first embodiment, there is no problem even if all the non-contact type communication shown in FIG.

Next, the operation of the second embodiment will be described. In FIG. 4, E to G are data stored in the data carrier 21 and required by different IC card systems (FIG. 4A). The person who uses the multifunction card 31
When the system is identified by the button switch 13 of the multi-function card 31, the multi-function card 31 recognizes the data carrier 21.
A system identification code f is sent to the multi-function card 31 (FIG. 4B), and the data carrier 21 that has identified the system sends necessary data F to the multi-function card 31 (FIG. 4C). Multi-function card 31 that has obtained the data F necessary for using the system
Sends information to the R / W of the host terminal and uses the system as in the conventional card system (FIG. 4 (d)). After using the card, the host side terminal 23 becomes the multifunction card 3
The data F sent from the data carrier 21 on the data carrier 1 is erased (FIG. 4 (e)). In this embodiment, it utilizes the same card for different systems, when such a terminal different card system with common inter-safe <br/> E Lee scan is co-located It is valid.

[0020]

As described above, the present invention provides an IC card.
For each of the card, data carrier, and host terminal,
With the configuration described in the claims, the system
If the mobile user owns only one data carrier,
Can access multiple systems using IC cards
It Further, since it has a data erasing means for erasing the data transmitted to the IC card after the use of the IC card, a person who intends to use the card system can carry out the same procedure as the conventional procedure by possessing only one data carrier. It is possible to use multiple card systems by itself, and for the side managing the system, the R /
By preparing a card equipped with W and a reader capable of communicating with a common data carrier nationwide, it is possible to realize a system capable of providing a service to a person who has a data carrier that can be shared with other systems.

[0021]

[0022]

[0023]

Since the IC card to be used is the one used in the IC card system, the IC card can be shared.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a hybrid card according to the present invention.
It is a figure which shows the structure of the Example of a C card system.

FIG. 2 is a diagram for explaining the operation of the embodiment of FIG.

FIG. 3 is a diagram showing a configuration of an embodiment of an IC card system using a hybridized multifunction card according to the present invention.

FIG. 4 is a diagram for explaining the operation of the embodiment of FIG.

FIG. 5 is a diagram comparing communication distances of various non-contact type IC cards.

FIG. 6 is a diagram showing an example of a conventional hybrid card.

FIG. 7 is a diagram showing an example of a conventional multifunction card.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Hybrid card 2 Coil for close proximity communication 3 Interface circuit for close proximity communication 4 Antenna for remote communication 5 Modulator / demodulator circuit for remote communication 6 Circuit part including CPU and memory 7 Coin type lithium battery 11 Multi-function IC card 12 Liquid crystal Display 13 Button switch 14 Input numeric keypad 15 Sounder 21 Data carrier 22 Host 22A Host 23 Host side terminal 23A Host side terminal 24 Proximity type host side R / W 25 Remote type host side R / W 31 Contact and remote type communication Hybridized multi-function card 32 with function 32 Contact-type host side R / W 33 Contact-type R / W interface circuit 34 Contact-type electrode of multi-function card

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuhiro Nagai 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Inside Nippon Telegraph and Telephone Corporation (56) Reference JP-A-5-298332 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G06K 17/00 G06K 19/00-19/10

Claims (8)

(57) [Claims] 1. An IC card system having IC data, a data carrier, and a host-side terminal, wherein the IC card comprises a communication means for communicating with the data carrier and the host-side terminal, and the data carrier is an IC card. And a communication means for communicating with the host side terminal and a memory storing at least one information required for each individual system, and the host side terminal has a communication means for communicating with the IC card and the data carrier. The host-side terminal transmits system identification information to the data carrier, the data carrier recognizes a system by the system identification information, and the necessary information for each system corresponding to the system is provided. The information is transmitted to an IC card, and the IC card obtains the necessary information for each system from the host side end. An IC card system characterized in that the system can be used by transmitting it to the end. 2. An IC card system having an IC card, a data carrier and a host side terminal, wherein the IC card is a communication means for communicating with the data carrier and the host side terminal, and an input for inputting system identification information. The data carrier includes a communication means for communicating with the IC card and a memory storing at least one information required for each individual system, and the host-side terminal communicates with the IC card. The IC card transmits the system identification information input from the input unit to the data carrier, the data carrier identifies the system by the system identification information, and supports the system. Necessary information for each system to be transmitted to the IC card, and An IC card system characterized in that the system can be used by transmitting necessary information to the host side terminal. 3. The IC card system according to claim 1 or 2, wherein necessary information for each system on the IC card is erased after the process for using the system is completed. An IC card system characterized by being configured. 4. An IC card, and a communication means for communicating with the IC card and the host side terminal.
Store at least one required information for each individual system
Means for communicating with a data carrier having a memory and an IC card and the data carrier
An IC card applied to an IC card system having a host-side terminal provided with, including a communication means for communicating with a data carrier and the host-side terminal, the host-side terminal transmitting to the data carrier. Sis
The system identification information allows the data carrier to identify the system.
The system corresponding to the system transmitted separately
Receiving the information required for each, by the information required for each obtained the system to send to the host terminal, capable of using the system
IC card characterized in that it is configured to be. 5. The IC card , communication means for communicating with the IC card, and individual system
And a memory storing at least one information necessary for
An IC card applied to an IC card system having a data carrier and a host-side terminal equipped with a communication means for communicating with the IC card, the communication means performing communication with the data carrier and the host-side terminal. comprises an input means for inputting a system identification information, said system identification information input from the entering-force means de
Send to Takyaria, the data carrier is cis by the system identification information
System identified and transmitted , corresponding to the system
Receiving the information required for each system, by the information required for each obtained the system to send to the host terminal, capable of using the system
IC card characterized in that it is configured to be. 6. Communication between a data carrier and a host-side terminal
Communication means for the IC card having a communication means for performing signal, and the data carrier, the communication with the IC card and the data carrier
A data carrier applied to an IC card system having a host-side terminal equipped with, and storing at least one piece of information necessary for each individual system and communication means for communicating with the host-side terminal and the IC card. And receiving the system identification information transmitted by the host side terminal, identifying the system by the system identification information, and transmitting necessary information for each system corresponding to the system to the IC card. In this way, the information necessary for each system from which the IC card was obtained is
Information is sent to the host side terminal so that the system can be used.
A data carrier characterized in that it is configured to be possible . 7. Communication between a data carrier and a host-side terminal
Communication means for communicating and inputting means for inputting system identification information
An IC card that includes a stage, and a data carrier, a data carrier which is applied to an IC card system having a host terminal having a communication means for communicating with an IC card, the communication with the IC card It is provided with a communication means for performing and a memory storing at least one information required for each individual system, and is input from the input means transmitted by the IC card.
Receiving the system identification information to identify the system by the system identification information, by transmitting the information necessary for each of the system corresponding to the system to the IC card, each of the systems in which the IC card is obtained Necessary information for
Information is sent to the host side terminal so that the system can be used.
A data carrier characterized in that it is configured to be possible . 8. Communication between a data carrier and a host-side terminal
An IC card having a communication means for communicating, and a communication means for communicating with the IC card and the host side terminal
Store at least one required information for each individual system
And a data carrier having a memory and to a host terminal that is applied to the IC card system having a host-side terminal, and a communication means for communicating with the IC card and the data carrier, the system identification Information is transmitted to the data carrier, and the system identification information identifies the data carrier.
System identified and transmitted to the IC card.
The information necessary for each system corresponding to the
A terminal on the host side, which is configured so that the system can be used by receiving from the C card .