JP2002024791A - Ic card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an IC card capable of changing a ROM usable in the IC card. SOLUTION: This IC card comprises a processing unit packaged within a package, a memory chip 3 implemented with a memory in which a program to be executed is stored, and a socket 2a provided at the surface of the package and allowing a memory chip 3 to be removable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to an IC card on which a C chip is mounted.

[0002]

2. Description of the Related Art In a conventional IC card, an IC chip having a processing unit and a memory is mounted in a package thereof, and information is output from the IC card by inserting or connecting the IC card to a terminal. I try to take it out.

[0003] Such an IC card is used not only for a single application but also for a plurality of applications such as a credit card, a cash card and an electronic currency system, or for a plurality of different companies. It is desired to realize functions corresponding to a plurality of services with one card so as to be able to do so and in view of the trouble of having a plurality of cards.

In order to realize a plurality of services with one IC card, a processing program (application) corresponding to each service is required. Therefore, a plurality of ROMs are provided in the IC chip, and each ROM stores a processing program for each application or each trader.

FIG. 17 is a block diagram showing the internal functions of a conventional IC card disclosed in, for example, Japanese Patent Application Laid-Open No. 4-216189. As shown in FIG.
Is provided with a CPU 112 connected to the internal bus 111 and a plurality of ROMs 114 connected to the internal bus 111 via the selection switch 113.

Each of the ROMs 114a to 114c stores a different application, and information stored in a desired ROM can be retrieved by a selection switch 113. The internal bus 111
Is connected to a RAM 115 and an input / output control unit 116 for transmitting and receiving data to and from an external device.

When such an IC card is used in, for example, a plurality of different banks A and B, an application corresponding to each bank is stored in advance in each ROM.
For example, when using the IC card at Bank A,
And the input / output control unit 116 receives a trigger signal from the terminal.

When the input / output control unit 116 receives the trigger signal, it activates the CPU 112 and performs a frequency analysis of the trigger signal to determine which bank it belongs to. In addition,
Each bank terminal has its own frequency to distinguish it from other bank terminals. As a result of this frequency analysis, when it is determined that the application is from Bank A, the ROM storing the application for Bank A is selected by the selection switch 113, and the application stored in this ROM is downloaded to the RAM 115. . Then, data transmission / reception with the bank terminal is performed.

[0009]

As described above, in the conventional IC card, since each ROM of the IC chip is provided in a predetermined number in the package, the application which can be used is determined by the IC card issuing company. It is limited to the contents and number of ROMs mounted at the time of issuance. for that reason,
Once an IC card is issued, the function of the IC card cannot be improved. Further, since the specifications (applications) of the IC cards are different when the issuing companies of the IC cards are different, there is a problem that each IC card must be carried.

The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide an IC card capable of changing a ROM usable in the IC card.

[0011]

According to the present invention, there is provided an IC card including a processing unit mounted in a package, a memory chip mounting a memory storing a program to be executed by the processing unit, and a package surface. And a socket in which the memory chip is detachable.

Also, an IC card according to the present invention comprises a processing unit mounted in a package and a memory chip mounted on a surface of the package and mounting a memory storing a program to be executed by the processing unit. With a possible socket.

Further, a plurality of sockets may be provided.

A plurality of sockets and memory chips may be provided, and each of the memory chips may store a different processing program.

Further, the memory mounted on the memory chip may be a flash memory.

Further, a communication means capable of wireless communication may be provided.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a diagram showing the appearance of the IC card according to the first embodiment. In the figure, 1 is an IC card main body, 2 is a ROM mounting section provided on the package surface of the IC card 1, and this ROM mounting section is provided with a plurality of ROM sockets 2a.
The OM chips 3 can be attached and detached. Reference numeral 3 denotes a plurality of ROM chips, and the ROM in each ROM chip stores actual personal identification / payment information and its processing program.

Reference numeral 4 denotes a display unit for displaying various kinds of transaction information and configuration information of an IC card.
Selection of each ROM number, selection of function, input of security code,
Alternatively, it is a keyboard for selecting a function for switching display contents.

The ROM mounting section 2 has the attached R
In order to prevent the OM chip 3 from dropping, a mounting claw is provided,
Alternatively, a transparent cover that can be easily attached (removed) may be provided.

FIG. 2 is a schematic diagram showing the internal configuration of the IC card 1 shown in FIG. 1 and a terminal device. In the figure, 6 is a basic S / W, a CPU as a processing unit for operating an application, 7 is an internal bus for taking an interface between each function of the IC card 1, and 8 is a basic S / W.
/ W and a RAM for operating an application, 9 is a FLASH-ROM storing a basic S / W for performing a basic operation of the IC card 1, and 10 is an input / output device for the display unit 4 and the keyboard 5. An I / O control unit 11 is an input / output control unit for transmitting and receiving information to and from a terminal device 20 that actually performs payment processing and the like, and 12 is a battery for operating the IC card 1.

Next, the operation will be described. FIG. 3 is a flowchart showing an operation at the time of payment processing using the IC card 1 according to the first embodiment. FIG. 4 is a flowchart showing an example of the operation of ST10 in FIG.

When the power of the IC card 1 is turned on, FLASH
-The basic S / W for controlling the entire flow of the IC card 1 is loaded from the ROM 9 into the RAM 8 and is in a trigger reception waiting state (ST1).

Here, it is confirmed whether or not the input / output control unit 11 has received trigger information from the terminal device 20 which performs payment processing (ST2). When the trigger information is not received, the standby state is maintained as it is, and when the trigger information is received, the CPU 6 is activated (ST3).

The CPU 6 determines whether or not the mode of the ROM chip 3 is the automatic selection mode (ST4). If the mode is the automatic selection mode, the CPU 6 further determines whether the mode is the priority mode of the trigger information (ST5).

When the mode is not the automatic selection mode, a ROM chip number (for example, a bank ROM chip, a specialty store ROM chip, etc.) is designated for the settlement by the keyboard 5 (ST6). If the mode is the automatic selection mode but not the trigger information priority mode, a ROM chip number registered in advance as default setting is designated for the settlement (ST7). Otherwise, the ROM chip number specified by the trigger information is specified for the settlement (ST8).

After specifying the ROM number in this way,
A ROM common initial process is executed to execute the contents of the ROM attached to the ROM socket 2, and the personal identification / settlement information of the ROM number designated for the settlement and the processing program are downloaded to the RAM 8 (ST9).

When the processing program and the like are downloaded to the RAM 8, the processing shifts to the execution of the specific processing of the attached ROM (ST10). Here, for example, execution processing is performed using unique data and a unique algorithm of the ROM issuing company.

FIG. 4 shows an example of the process of ST10.
As shown in FIG. 4, first, information associated with the payment process is transmitted / received to / from the terminal device 20, and the billing source and payment information confirmation information are displayed on the display unit 5 (S21). Further, by displaying the amount of the payment on the display unit 4, the user is prompted to input a personal password necessary for fulfilling the payment process (S2).
2). On the other hand, the user who pays the amount is the IC card 1
Using the keyboard 5, the user inputs a password to perform personal authentication (S23). CPU6 that received the password
Transmits and receives information required for payment to and from the terminal device 20 and performs payment processing (S24).

After the processing in ST10 as described above, the control is shifted to the ROM common end processing as shown in FIG. 3, and a confirmation processing is performed as to whether the processing in S10 is completed without error (ST11). After that, the IC card 1 waits for receiving the trigger information from the terminal device 20 again (S1).
2).

FIG. 5 is a diagram showing another processing example of ST10 of FIG. 4 except that ST23 in FIG. 4 is replaced with ST25 in FIG. 5, and a description of the common ST will be omitted.

In FIG. 4, personal authentication is performed by inputting a password. In this step ST25, a fingerprint judgment unit for fingerprint authentication is provided on the IC card, and personal authentication is performed by fingerprint authentication instead of password input. . By using fingerprint authentication in this way, for example, a quick recognition process can be performed at the time of a payment process when driving a car. Further, by using the fingerprint determination, it is possible to reliably prevent abuse when the IC card is lost.

Next, a method of using the IC card 1 according to the first embodiment will be described. In order to improve the function of the IC card, a memory chip 3 storing an application or data whose function has been improved by a trader or the like in advance may be attached to the ROM socket 2. By doing so, it is possible to use applications with improved functions and the like.

Next, when receiving the services of a plurality of card companies, the memory chips 3 storing the applications and the like corresponding to each card company are stored in the ROM sockets 2 respectively.
It should be attached to the. Then, at the time of use, by reading the contents of the ROM chip 3 corresponding to each card company, it becomes possible to receive the services of each company. Furthermore, when a service from another service company is newly received, a ROM chip corresponding to the card company may be newly attached.

When a plurality of services having different functions are received, a corresponding ROM chip may be mounted. In this way, each service can be easily received.

If it is desired to receive more services than the number of ROM sockets, it is sufficient to remove unused ROM chips and install new ROM chips.

In this embodiment, the application (personal identification / payment information and its processing program) ROM that can be mounted on the IC card is detachable, so that the ROM that can be used with the IC card can be changed. As a result, a flexible IC that is not restricted by the mounting area of the IC card
A C card can be realized, and there is no need to have an IC card for each application.

Embodiment 2 The IC card according to the second embodiment is obtained by adding a wireless reception unit to the IC card according to the first embodiment, and adding a wireless transmission unit and a display unit to the terminal device according to the first embodiment.

FIG. 6 is a diagram showing an IC card and a terminal device according to the second embodiment. In the figure, 13 is a wireless receiving unit, 21 is a wireless transmitting unit provided in the terminal device 20 for performing payment processing and the like, and 22 is a display unit provided in the terminal device 20.

Next, the operation will be described. FIG. 7 is a flowchart showing an operation for wireless communication processing between the IC card 1 and the terminal device 20 at the time of payment processing using the IC card 1 according to the second embodiment.

The IC card 1 waits for a connection request from the terminal device 20 that executes the payment processing (ST31).
When a connection request is actively issued from the terminal device 20 (ST41), the connection request is received (ST32), and personal information stored in the IC card 1 is returned to the terminal device 20 (ST33).

The terminal device 20 that has received the personal information displays the received personal information on the display unit 22 (ST42), and the IC card 1 and the terminal device 20 possessed by the user who performs the payment.
Confirm that the connection has been established (ST43). At this time, there is a user who has another IC card near the user who makes the payment, and the terminal device 20 erroneously establishes a connection with the IC card of a user who is near this user. In this case, the terminal device 20 actively transmits the connection disconnection information (ST44).

If the connection between the IC card 1 of the user performing the payment and the terminal device 20 performing the payment process can be established without fail, information indicating the active establishment of the connection is sent from the terminal device 20 to the IC card 1. After transmitting (ST45), the IC card 1 recognizes that the connection has been established (ST34).

Thereafter, the same processing as the payment processing of the first embodiment is performed (ST35, ST46). When the payment processing is completed, the connection disconnection information is transmitted from the terminal device 20 to the IC card 1 (ST47).
Receives connection disconnection information (ST36), disconnects the connection (ST37), and transitions to a state of waiting for connection information again.

In the IC card system according to the present embodiment, it is not necessary to contact or hold the IC card with the terminal device for the payment processing, so that the burden of the payment processing using the IC card is reduced. can do.

Next, the operation of a toll road toll collection system will be described as a method of utilizing an IC card having a wireless I / F. FIG. 8 is a schematic diagram showing a toll road toll collection system. In the figure, vehicles 31a to 31d are about to enter a toll road from an entrance A, and it is assumed that the crew of each vehicle is carrying an IC card.

Reference numerals 32a and 32b denote terminal devices that perform entry control for vehicles entering from the entrance A. Reference numeral 33 denotes a management computer that manages toll roads. Has a management table 33a for managing information on the vehicle. 34a and 34b are terminal devices for executing payment processing at the exit B of the toll road, 35 is the terminal devices 32a, 32b, 34a and 34b and the management computer 33
Is a wide area LAN.

Next, the operation will be described. Vehicles 31a-31d trying to enter the toll road from entrance A
, A connection is established between the IC card carried by the passenger and one of the terminal devices 32a and 32b.
When the connection is established, the terminal devices 32a and 32b transmit the entry ID to the IC card. For example, entrance A
It is assumed that C1, C2, C3, and C4 are allocated as approach IDs to the vehicles 31a to 31d that have entered from. Regarding the establishment of the connection, the entry IDs are allocated in the order of the IC cards that have responded to the connection request of the terminal device, regardless of the positional relationship of the vehicle.

The terminal devices 32a and 32b at the entrance A
A connection is made to the management computer 33 on the toll road via the wide area LAN 35, and information on the IC card to which the entry ID is assigned is stored in the management table. The contents of the management table are the personal information of the IC card, the entry ID, the entered entrance number, and the like.

Next, the processing at the exit B will be described. It is assumed that, out of the vehicles entering from entrance A, vehicle 31d exits from the toll road at exit B. When the vehicle 31d tries to get off the exit B, the terminal device 34a that is close to the vehicle 31d
Establishes a connection with the IC card 1 mounted on the vehicle 31d.

The IC card 1 sends the entry ID (C4) received at the entrance A to the terminal device 34a.
Send to The terminal device 34a transmits the entry ID (C4) to the management computer 33, the management computer 33 reads a record corresponding to the ID (C4) from the management table 33a, calculates a fee from the entrance information and the exit information, and performs payment processing. Is carried out.

As described above, by realizing the payment processing for the toll road using the wireless I / F, it is not necessary to sequentially pass through narrow entrances and exits at low speed as in the past. And the exit can be made a wide space.

Embodiment 3 FIG. In the third embodiment, R
FL memory of ROM chip attached to OM socket
This is an ASH-ROM that enables rewriting of an application.

FIG. 9 is a diagram showing a system configuration of the IC card system according to the third embodiment. In the figure, 3a
This is a ROM chip in which a FLASH-ROM is stored.
21 is the management computer 3 of the application management company
0 is an I / F for a wide area network provided in the terminal device 20 so as to be connectable to the terminal device 20 via a wide area network. In addition,
Others are the same as the first embodiment.

Next, the operation will be described. FIG. 10 is a flowchart showing an operation at the time of payment processing using the IC card 1 according to the third embodiment.

At the time of payment processing, trigger information for connection is transmitted from the terminal device 20 to the IC card 1 (ST61),
Upon receiving the trigger information, the IC card 1 selects an application according to the trigger information, and expands the application from the FLASH-ROM to the RAM 8 (ST51).
The version of the application (here, VerA) is returned to the terminal device 20 (ST52).

The version of the application (Ver
The terminal device 20 that has received A) connects to the management computer 30 of the application management company via the wide area network asynchronously with the payment processing, and checks the latest version (ST62).

The management computer 30 checks the received version (VerA) (ST71), and uploads the latest version (VerB) of the application to the terminal device 20 if there is an application of the latest version (for example, VerB) (ST72). ).

The terminal device 20 temporarily holds the latest version (VerB) of the application module uploaded from the management computer 30 (ST).
64). During the upload operation of the latest application described above, the terminal device 20 and the IC card 1 carry out personal authentication processing accompanying payment (ST53, ST63). The personal authentication is completed and the actual payment process starts. That is,
The payment processing request is transmitted from the IC card 1 to the terminal device 20 (ST54), and the terminal device 20 further transmits a payment processing request to the management computer 30 (S65).

While the management computer 30 is performing the payment processing (ST73), the terminal device 20 uploads the latest version (VerB) application temporarily held to the IC card 1 (ST66),
The IC card 1 overwrites and saves the latest version (VerB) of the application on the FLASH-ROM in which the old version (VerA) of the application has been written (ST55).

Management computer 3 for which payment processing has been completed
0 transmits a payment processing completion notification to the terminal device 20 (ST
74), the terminal device 20 transmits the received payment processing completion notification to the IC card 1 (ST67), and the IC card 1 confirms the completion of the series of payment processing based on the received payment processing completion notification, and again, the terminal device 20. Waits for reception of trigger information from.

As described above, the ROM in which the application (personal identification / payment information and its processing program) is stored is replaced with a rewritable FLASHROM, and the ROM is automatically rewritten using the idle time of the payment processing. Thereby, it is possible to upgrade the application corresponding to the new service of the application management company without affecting the payment processing time.
This eliminates the need for cumbersome processing such as a service application procedure associated with the conventional version upgrade and a time lag associated with mail processing.

Embodiment 4 In the fourth embodiment, an I / F for a mobile phone is newly provided in the IC card of the first embodiment.

FIG. 11 is a diagram showing a configuration of an IC card and a mobile phone according to the fourth embodiment. In the figure, 14 is an I / F for a mobile phone, and 15 is a connection cable for connecting the mobile phone 40 and the IC card 1. Other configurations are the same as those in the first embodiment, and a description thereof will not be repeated.

FIG. 12 is a schematic diagram showing the internal configuration of the IC card 1, the mobile phone 40, and the management company computer 30 shown in FIG. As shown in the figure, when receiving a service through a mobile phone, K1 displays a menu on the display unit 4, accepts an input from the keyboard 5, and performs an I / F with each service provider function for performing various services. Display function / menu GU to perform
I function. K2, K3, K4, and K5 are service provider functions for performing processing for each service, K6 is a mobile phone I / F function for actually transmitting and receiving information to and from the mobile phone 40,
K10 indicates a basic S / W of the IC card 1, and K11 indicates an application of the IC card 1.

K7 is an IC card I / F function mounted on the mobile phone 40, K8 is an Internet access function mounted on the mobile phone 40, K9 is a management company that manages applications and basic S / W of the IC card. Internet server.

Next, the operation will be described. FIG. 13 shows an IC
4 is a flowchart for explaining operations in the card 1, the mobile phone 40, and the computer 30 of the management company.

First, by input from the keyboard 5, I
The display / menu GUI function K1 of the C card 1 displays the service menu on the display unit 4 (ST81). The user selects a desired service using the keyboard 6 according to the menu (ST82). Here, a description will be given assuming that the application upgrade service (menu 1 service function K2) is selected.

The menu 1 service function K2 transmits version information (Ver.) From the target application K11.
A) and obtain the URL of the Internet server K9 of the management company that manages the application. further,
Menu 1 service function K2 is mobile phone I / F function K
6. Connect to the Internet server K9 of the management company via the IC card I / F function K7 and the mobile phone Internet connection function K8 (ST83), and obtain the latest version information of the target application (VerB). Compare with current version (VerA) (ST8
4).

If the result of the comparison indicates that the latest version (VerB) of the application needs to be downloaded, the download of the latest version (VerB) of the application is started (ST85). When the download of the latest version (VerB) of the application is completed, the FLA in which the target application was stored
The latest version (VerB) of the application is written into the SH-ROM (ST86).

When the writing is completed, the menu 1 service function K2 reports the completion to the display / menu GUI function K1, and the display / menu GUI function K1 displays a completion message on the display unit 5 and completes (ST87). ).

As described above, by providing a connection I / F with a mobile phone in an IC card, not only an application (personal identification / payment information and its processing program) but also a basic S / F for operating the IC card. W version upgrade is now possible via the Internet.
Eliminates the need for cumbersome processing such as the time lag associated with mail processing.

Embodiment 5 In the fifth embodiment, an I / F for a computer is newly provided in the IC card of the first embodiment.

FIG. 14 is a diagram showing the configuration of an IC card and a computer according to the fifth embodiment. In the figure, 16 is a computer I / F, and 17 is a connection cable for connecting the computer 50 and the IC card 1. Other configurations are the same as those in the first embodiment, and a description thereof will not be repeated. As a method of connecting to the computer, any method such as USB, PCMCIA card, and serial may be used.

FIG. 15 is a schematic diagram showing the internal configuration of the IC card 1, the computer 50, and the management company computer 30 shown in FIG. In the figure, as internal functions of the computer 50, K14 is a function block for processing data from the IC card 1, K15 is an Internet access function of the computer 50, K16 is a word processor / spreadsheet software on the computer 50, F1 is an IC card This is a file of the data sent from 1.

Reference numeral 3 denotes a non-volatile memory on the IC card 1 which stores the history of the payment processing so far. Other than that, except that the mobile phone I / F function K6 shown in FIG. 12 is replaced by the computer I / F function K12 and the IC card I / F function K7 is replaced by the IC card I / F function K13 on the computer. The description is omitted because it is the same as FIG.

Next, the operation will be described. FIG. 16 shows an IC
6 is a flowchart for explaining operations in the card 1 and the computer 50.

The application (personal identification / payment information and its processing program) via the computer 50 or the basic S
Embodiment 4 relates to the / W version upgrade operation.
The mobile phone I / F function K6 shown in FIG.
Instead of the F function K12, the IC card I /
The F function K7 is used for the IC card I / F function K1 on the computer 50.
3 in place of the Internet access function K8 on the cellular phone 40 and the Internet access function K8 on the computer 50.
Since the operation is the same except for replacing the IC card 15, the operation of using the information of the IC card 1 in the word processor / spreadsheet software K16 of the computer 50 will be described in this embodiment.

First, by input from the keyboard 5, I
The display / menu GUI function K1 of the C card 1 displays the service menu on the display unit 4 (ST91). The user selects a desired service using the keyboard 5 according to the menu (ST92). Here, a description will be given on the assumption that the service for saving the payment history in the file (the service function K3 of the menu 2) is selected.

The menu 2 service function K3 reads out the history information of the payment processing performed by the IC card 1 so far from the nonvolatile memory 3 and executes the computer I / F function K1.
2. Computer 50 via IC card I / F function K13
(ST93).

The data processing function K14 of the computer 50 stores the received data as a file F1 that can be processed by the word processor / spreadsheet software K16 (ST101). The menu 2 service function K3 that has finished transmitting the history data to the computer 50 reports the completion to the display / menu GUI function K1, and the display / menu GUI function K1 displays a completion message on the display unit 4 and completes (ST94). ).

As described above, by providing a connection I / F with a computer in an IC card, an application (personal identification / payment information and its processing program) and a basic S
/ W can be upgraded via the Internet, which eliminates the need for cumbersome processing such as the service application procedure and the time lag associated with postal processing associated with the conventional version upgrade, as well as the past payment history and other information on the computer. It is possible to plan a reasonable operation of the IC card, for example, by easily managing the total cost.

[0082]

An IC card according to the present invention is provided on a surface of the package, a processing unit mounted in a package, a memory chip mounting a memory storing a program executed by the processing unit, Since the memory chip has a detachable socket, it is possible to easily change the ROM that can be used in the IC card.

Further, an IC card according to the present invention comprises a processing unit mounted in a package and a memory chip mounted on a surface of the package and mounting a memory storing a program to be executed by the processing unit. ROM that can be used with an IC card
Can be easily changed.

When a plurality of sockets are provided, a plurality of memory chips can be mounted, and a plurality of applications can be executed.

When a plurality of sockets and memory chips are provided and different processing programs are stored in the respective memory chips, a plurality of applications can be executed.

When the memory mounted on the memory chip is a flash memory, the application can be rewritten, and the version of the stored application can be easily upgraded.

Further, when communication means capable of wireless communication is provided, there is no need to contact or hold the IC card with the terminal device, and it is possible to reduce the hassle of payment processing using the IC card. it can.

[Brief description of the drawings]

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

FIG. 2 is a schematic diagram showing the IC card and the terminal device shown in FIG.

FIG. 3 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 4 is a flowchart illustrating an example of the operation of ST10 in FIG. 3;

FIG. 5 is a diagram showing another processing example of ST10 in FIG. 3;

FIG. 6 is a diagram illustrating an IC card and a terminal device according to a second embodiment of the present invention.

FIG. 7 is a flowchart illustrating an operation according to the second embodiment of the present invention.

FIG. 8 is a schematic diagram showing a toll road toll collection system.

FIG. 9 is a diagram showing a system configuration of an IC card system according to a third embodiment of the present invention.

FIG. 10 is a flowchart illustrating an operation according to the third embodiment of the present invention.

FIG. 11 is a diagram showing a configuration of an IC card and a mobile phone according to a fourth embodiment of the present invention.

FIG. 12 is a schematic diagram showing an internal configuration of an IC card, a mobile phone, and a management company computer shown in FIG. 11;

FIG. 13 is a flowchart illustrating operations in an IC card, a mobile phone, and a computer of a management company.

FIG. 14 is a diagram showing a configuration of an IC card and a computer according to a fifth embodiment of the present invention.

15 is a schematic diagram showing the internal configuration of the IC card, the computer, and the management company computer shown in FIG.

FIG. 16 is a flowchart for explaining operations in an IC card and a computer.

FIG. 17 is a block diagram showing a conventional IC card.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 IC card 2 ROM mounting part 2a ROM socket 3 ROM chip 3a ROM chip (Built-in FLASH-ROM) 4 Display part 5 Keyboard 6 CPU 7 Internal bus 8 RAM 9 FLASH-ROM 10 I / O control part 11 I / O control part 12 Battery 13 Wireless reception unit 14 Portable I / F 15 Connection cable 16 Computer I / F 17 Connection cable 20 Terminal device 21 Wireless transmission unit 22 Display unit 30 Management computers 31a to 31d Vehicles 32a, 32b Terminal device 33 Management computer 34a, 34b Terminal device 35 Wide area LAN 40 Mobile phone 50 Computer 101 IC card 111 Internal bus 112 CPU 113 Selection switch 114 ROM 115 RAM 116 Input / output control unit

Continued on the front page F term (reference) 2C005 MA04 MA33 MB07 MB08 NA02 NA06 NB04 NB40 PA14 QA01 QC17 QC20 SA04 SA15 TA21 TA22 TA27 5B035 AA06 BB09 CA29

Claims (6)

[Claims] 1. A processing unit mounted in a package, a memory chip mounting a memory storing a program to be executed by the processing unit, and a socket provided on a surface of the package and to which the memory chip is detachable. An IC card comprising: 2. A processing unit mounted in a package, and a socket provided on a surface of the package and mounted with a memory chip mounted with a memory storing a program to be executed by the processing unit is detachable. IC characterized by the following
card. 3. The IC card according to claim 1, wherein a plurality of sockets are provided. 4. The IC card according to claim 1, wherein a plurality of sockets and memory chips are provided, and each of the memory chips stores a different processing program. 5. The IC card according to claim 1, wherein the memory mounted on the memory chip is a flash memory. 6. The IC card according to claim 1, further comprising communication means capable of wireless communication.