JP2000172810A - Portable information processing medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an IC card which is provided with plural communication means, makes the best use of the merits of the communication means, and has appropriate convenience and security. SOLUTION: When the owner of an IC card 10 uses the card 10 for payment as a no-contact card, payment information is inputted from a first information conveyance section 21-1 which is a non-contact communicating means and stored in an information storing section 25, and then, the payment is processed. When the total payment exceeds a standard amount, an information storing section managing section 24 inhibits the writing of the information from the first information conveyance section 21-1 in the storing section 25 and, thereafter, the processing of the payment is inhibited. When the card 10 is inserted into a terminal for settlement, the stored payment information is sequentially outputted through a third information conveyance section 21-3 which is a contact type communicating means and the payment is completed when the payment is approved. Accordingly, the total unsettled payment decreases and the processing of the payment becomes possible again when the storage of the information received through the first information conveyance section 21-1 in the storing section 25 is permitted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention comprises a plurality of communication means, for example, a contact type and a non-contact type,
The present invention relates to a more convenient portable information processing medium that can be used in a form suitable for the communication means depending on the communication means to be used.

[0002]

2. Description of the Related Art With the development of semiconductor technology and packaging technology, for example, a portable information processing medium having a memory and an arithmetic processing circuit in a card, that is, a so-called IC card has been rapidly developed and used. Such an IC card is roughly divided into a contact type IC card for transmitting and receiving signals between an external read / write device and an IC card via electrodes provided on the card surface, and an electromagnetic wave via an antenna coil. For example, there is a non-contact type IC card which transmits and receives a signal according to the method. The contact-type IC card can perform complicated arithmetic processing at high speed because power supply is stable, and can be applied to applications with high security. On the other hand, non-contact type IC cards are suitable for relatively simple processing such as permitting passage through gates because they are easy to handle. It's difficult to get things done fast.

In recent years, there has been a demand for a multifunctional card, and a card having both functions of a contact type IC card and a non-contact type IC card has been started to be used. As a method for giving both functions of a contact type IC card and a non-contact type IC card to one card, there is a method of incorporating a separate contact type IC module and a non-contact type IC module with an antenna in one card. There is a method commonly called a combination card using an IC chip that operates in both a contact type and a non-contact type. In any of these systems, communication with an external read / write device is
The contact-type IC card is performed via an electrode provided at a predetermined position on the card surface, and the non-contact type IC card is performed via an antenna coil built in the card.

[0004]

However, the contact / non-contact type IC card which is referred to as a so-called combination card is used as a contact type IC card and as a non-contact type IC card. In this case, the same arithmetic processing circuit and the same memory (data storage circuit) are used, but even if the communication means is different, there is no difference in the access control to the memory. There is a problem that the characteristics of the mold and the non-contact type cannot be used effectively. Specifically, there is a possibility that stored data with high security used as a contact type IC card may be used in a state of low security or destroyed when used as a non-contact type IC card. There is a problem that there is. Therefore, there is a demand for an IC card that has the convenience of a non-contact type IC card while maintaining the high security of the contact type IC card.

[0005] Therefore, an object of the present invention can be used by a plurality of communication means, and can perform access control according to the communication means used for the memory, thereby providing a desired communication means corresponding to the communication means. An object of the present invention is to provide a portable information processing medium that can be used in a form.

[0006]

In order to solve the above-mentioned problems, a portable information processing medium according to the present invention comprises a plurality of communication means for communicating with an external device, and a communication means for selecting one of the communication means. Selection means, storage means for storing desired data, signal processing means for accessing the storage means and performing desired signal processing based on the communication by the selected communication means, and the selected communication Depending on the means,
Access control means for controlling access to the storage means by the signal processing means.

In the portable information processing medium having such a configuration, any one of the plurality of communication means is selected by the communication means selection means, and the signal processing means is externally connected via the communication means. Desired signal processing is performed while communicating with the device and accessing the storage means as appropriate. At this time, the access to the storage means is managed by the access control means, and the access level is set according to the selected communication means. Therefore, the signal processing means is permitted according to the communication means used. It is no longer possible to access the storage means with a privilege equal to or higher than the specified level, and the security of the storage means according to the communication means is ensured.

[0008] Specifically, the communication means includes a contact-type communication means for communicating with the external device in a contact manner via an electrode, and a non-contact type communication for communicating with the external apparatus in a non-contact manner by wireless communication. Communication means. Preferably, the signal processing unit performs a predetermined process according to the selected communication unit. Specifically, when a predetermined access to the storage unit is restricted by the access control unit, the signal processing unit transmits a predetermined communication content based on the restricted state to the external device. Notify the device. More specifically, the signal processing means interrupts the signal processing during processing when a predetermined access to the storage means is restricted by the access control means.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a portable information processing medium according to the present invention will be described with reference to FIGS. In the present embodiment, a credit card or a card that can be used as electronic money, when a small individual payment is made, it is easily processed by a non-contact method, and separately, a highly reliable contact method is used. The present invention will be described by exemplifying an IC card having a function of electronic money as a whole by combining a non-contact method and a contact method, in which payment is actually performed by performing a settlement process.

First, the hardware configuration of the IC card according to the present embodiment will be briefly described with reference to FIG.
FIG. 1 is a block diagram showing a configuration of an IC card 10 according to the present embodiment. The IC card 10 includes the antenna coil 1
1, non-contact interface (I / F) unit 12, electrode 1
3. It has a contact interface (I / F) unit 14, a switching unit 15, a CPU 16 and a memory 17.

The antenna coil 11 is an antenna used for transmitting power and signals when the IC card 10 is used in a non-contact type communication system. When the IC card 10 is used in a non-contact communication mode, the non-contact I / F unit 12 is connected to the antenna coil 11 for acquiring power via the antenna coil 11 and performing communication via the antenna coil 11. This is an interface circuit with the CPU 16 described later. Specifically, the non-contact I / F unit 12 includes a rectifier circuit for extracting power supplied from an external device via the antenna coil 11, a constant voltage circuit, and the like, Circuits such as a detection circuit and an amplification circuit for extracting data transmitted from the
Further, it has a modulation circuit and the like for transmitting data to an external device via the antenna coil 11.

The electrode 13 is a contact type IC card 10
When used as a C card, it is a contact for electrically connecting the IC card 10 to an external device. In the present embodiment, the electrodes 13 are provided at predetermined positions based on the standard of the contact type IC card, and are provided with a circuit power supply terminal, a signal power supply terminal, a ground terminal, a clock input terminal, a reset terminal, respectively. , A data input / output terminal, and a reserve terminal (two). Contact I /
The F section 14 is an interface circuit between the electrode 13 and a CPU 16 described later when the IC card 10 is used in a contact-type communication system.

The switching section 15 is a means for selecting either the antenna coil 11 or the electrode 13 as communication means for communicating with an external device. Switching unit 1
5 observes power supply terminals from both the non-contact I / F unit 12 and the contact I / F unit 14 when the IC card 10 has not established communication with any external device, When the power supply is started from one of the I / F units, the I / F unit is selected, and the subsequent acquisition of power and communication with the external device are performed via the selected I / F unit. To do. Further, once one I / F unit is selected, the other I / F unit is disabled until the supply of power from the I / F unit ends. Information indicating which communication unit is selected in the switching unit 15 is output to the CPU 16.

The CPU 16 operates according to a processing program stored in advance to control the antenna coils 11 to the switching unit 1.
5 and perform desired signal processing while appropriately communicating with an external device via the control unit 5. At this time, the CPU 16
The processing program to be executed is substantially switched based on the information on the selected communication means input from the user. Further, the CPU 16 refers to the parameters, data, and the like set in the memory 17, and stores the data obtained as a result of the signal processing in the memory 17 as necessary, and executes the desired signal processing. Do.

In addition to the main signal processing described above, the CPU 1
6 is a communication control based on a predetermined protocol when actually communicating with an external device via the antenna coil 11 and the non-contact I / F unit 12 or the electrode 13 and the contact I / F unit 14; Processing such as management of a storage area including access control of the memory 17 is also performed. Communication control is performed based on a program stored in the memory 17 for each communication protocol that the IC card 10 can support. The access control of the memory 17 is performed by referring to access permission / non-permission judgment information added for each storage unit such as a file and a directory. Note that the signal processing program executed by the CPU 16 may be stored in the memory 17 or may be stored in the ROM in the CPU 16.

The memory 17 is a nonvolatile memory for storing desired data. The memory 17 stores parameters and data used in signal processing in the CPU 16, data of signal processing results, and the like. Each data stored in the memory 17 is added with access permission / non-permission judgment information for each communication unit.

Next, an IC having such a hardware configuration will be described.
Each function of the card 10 realized mainly by the signal processing in the CPU 16 will be described with reference to FIG. FIG. 2 is a functional block diagram of the IC card 10. The IC card 10 has four information transmission units 21 _{-1 to} 21 _-1.
-4 , an information transmission unit identification unit 22, a signal processing unit 23, an information storage unit management unit 24, and an information storage unit 25.

The information transmitting sections 21 _{-1 to} 21 _-4 are means for communicating with external devices by a predetermined method, and transmit data input from the signal processing section 23 to the external devices by a predetermined method. At the same time, data received from an external device is output to the signal processing unit 23 in a predetermined manner. Also,
The information transmission units 21 _{-1 to} 21 _-4 are supplied with power and a signal from an external device, or input an instruction for data transmission from the signal processing unit 23, so that the operation is enabled. Then, information to that effect is output to the information transmitting unit identifying unit 22.

The information transmitting sections 21 _{-1 to} 21 _-4 are realized by the above-described components of the antenna coil 11 to the contact I / F section 14 and the processing of controlling each communication protocol in the CPU 16. The IC card 10 according to the present embodiment is assumed to support two protocols in each of the non-contact method and the contact method.
The information transmitting section 21 _-1 (information transmitting section A) of the first means is a means for performing communication according to the first protocol of the non-contact type, and the second information transmitting section 21 _-2 (information transmitting section B) is the second means of the non-contact type. Means for communicating according to the protocol of the third information transmission unit 21
_-3 (information transmission unit 0) is a means for performing communication using a first contact protocol, and fourth information transmission unit 21 _-4 (information transmission unit 1) is a means for performing communication using a second communication protocol. And

The information transmitting section identifying section 22 includes an information transmitting section 21.
Based on the information input from _{-1 to} 21 _-4, it detects which information transmission unit, that is, the communication means is selected, and outputs the result to the information storage unit management unit 24.

The signal processing section 23 includes information transmission sections 21 _-1 to 21 _-1.
Desired signal processing is performed while appropriately communicating with an external device via _1-4 . In the present embodiment, the signal processing unit 23
Is the first information transmission unit _21-1 or the second information transmission unit 2
1 when the communication is started by a non-contact manner via _-2 performs a small payment processing, communications by contact manner via the third communication unit 21 _-3 or fourth information transmission section 21 _-4 Is started, the settlement process is performed.

As described above, the small payment processing is performed by the IC
This is an individual and immediate payment process such as when a card user purchases food or drink at a cafeteria or the like. in this case,
Specifically, information related to the payment of the purchased product from an external read / write device is input, so whether or not the total amount of the unsettled small payments accumulated so far is within the usage limit range. If the payment is approved, and the payment is approved, the payment information is stored in a predetermined storage area of the information storage unit 25 via the information storage unit management unit 24. This small payment processing is described in FIG.
The details will be described later with reference to FIG.

The settlement process is a process for performing settlement for unsettled payments accumulated by the small-amount payment process and instructing, for example, a card issuing company or a management company to pay the total amount. Specifically, the information of each small payment stored in the information storage unit 25 is stored in an external lead /
The information is sent to the light device and further to a host computer or the like that performs the payment processing, and the payment is sequentially performed. When the payment is completed, the information of the small payment is invalidated or settled from the information storage unit 25.

The information storage unit management unit 24 includes an information storage unit 25
Is a means for managing data to be stored in the data storage unit and controlling access to the data. Specifically, in response to a request from the signal processing unit 23, the information storage unit 25 stores, for example, information on a small amount payment. Writing and reading from the information storage unit 25 are performed. The information storage unit management unit 24
Data is sequentially recorded in the information storage unit 25 in a logically tree-like configuration as shown in FIG. 3, and the recorded data is managed. At this time, access control data is stored for each directory and each file on the information storage unit 25, so that subsequent access control to the directory and the file is performed.

[0025] The access control data, as shown in FIG. 4, consists of two bytes of data of one byte of the write control data and 1 byte of the read control data, each bit of the control data, the information transmission section 21 _{- 1 to} 21 _-4 . That is, as shown in FIG. 4, bit 7 is the first information transmitting unit 21 _-1 , bit 6 is the second information transmitting unit 21 _-2 , bit 5 is the third information transmitting unit 21 _-3 , and bit 4 _{Denotes a} fourth information transmission unit _21-4 . Bits 3 to 0 of each control data are a reserved area.

The information storage section management section 24 includes a signal processing section 23
When the writing and reading of information are requested from the device, the access control data of the directory to which the information is to be written or the access control data of the requested information to be read is read, and the current With reference to the information of the information transfer section
It is detected whether writing and reading of the information are permitted. If the access is permitted, the information is written or read in response to the request. If the access is not permitted, the information is returned to the signal processing unit 23.

The information storage section 25 is a nonvolatile memory for storing desired data, and is the memory 17 itself in FIG. The information storage unit 25 includes an information storage unit management unit 24
, And stores data in a configuration as shown in FIG.

Next, the operation of the IC card 10 having such a configuration will be described. First, a small amount payment process, which is an operation when the IC card 10 is used as a non-contact type IC card, will be described with reference to FIG. FIG. 5 shows an IC
6 is a flowchart for explaining the flow of a small payment process in the card 10. In the present embodiment, when the total amount of the unsettled small payment of the IC card 10 becomes larger than a predetermined reference amount, the IC card 10 cannot be used for the small payment. In addition, separately from the reference amount, it is assumed that a payment limit per one time or a predetermined period such as, for example, one month when the IC card 10 is used for small payment is set in advance.

The user of the IC card 10 uses the IC card 10 as a non-contact type card when making a small payment in a self-service cafeteria, for example. That is, the user tries to pay for the selected food or drink by holding the IC card 10 over the read / write device. When the user holds the IC card 10 over the read / write device, power is supplied to the circuits in the IC card 10 via the antenna coil 11, and the processing in the IC card 10 is started (step S50).

Following the start of power supply, the read / write
A signal including a signal for establishing a communication path is sent from the
However, in the IC card 10, a plurality of information
Dept. 21_-1~ 21_-FourCan decode transmitted signal in
Any of the information transfer units 21_-i(I = 1 to 4)
Read / write with the IC card 10
A communication path is established between the remote devices. This also gives
Multiple information transmission units 21 _-1~ 21_-FourAny one of
Information transmission unit 21_-iStarts functioning effectively.

First, a series of initial information is transmitted / received at the start of communication (step S51). At this time, I
From the C card 10 to the read / write device, an effective information transmitting unit 21 _-i , information indicating the attribute of the information transmitting unit such as contact / non-contact, or an information transmitting unit to be designated as a means for actually performing communication Or the like may be transmitted and notified. By doing so, it is possible to more efficiently transmit the subsequent information, or to transmit the information using a new desired information transmitting unit.

When the transmission / reception of the initial information is completed, the signal processing unit 23 sends the information storage unit management unit 24 the information storage unit 25
Is inquired as to whether data access, that is, writing of new data and reading of already recorded data are permitted (step S52). The information storage unit management unit 24 extracts the access control information of the directory / file storing the small payment information in the information storage unit 25, and inputs the current information transmission unit 21 _-i (input from the information transmission unit identification unit 22). Based on the information for identifying (i = 1 to 4), data access information for this information transmission unit 21 _-i is extracted, and whether access is permitted or prohibited is detected, and the signal processing unit 23 is notified of that fact. (Step S
53).

As a result, if the information transfer unit 21- _i is not permitted to access the small payment information to the information storage unit 25 (step S53), the subsequent processing of the requested small payment is appropriately performed. Since it cannot be performed, the signal processing unit 23 sends information indicating the fact to the read / write device as an error notification (step S5).
4) The process is immediately terminated (step S62).

An information storage unit 25 is provided for the information transmission unit 21- _i .
If access to the small payment information is permitted (step S53), the signal processing unit 23 receives the actual payment information from the read / write device (step S5).
5). On the other hand, the total amount of unsettled small payments including a new payment is calculated by referring to the unsettled small payment information already recorded in the information storage unit 25, and the amount is set to a preset limit. It is checked whether or not the amount has been exceeded (step S56).

If the limit is exceeded, it means that the IC card 10 has exceeded the payment limit permitted in the non-contact mode of the IC card 10, so that the payment is not approved for the read / write device. (Step S
57), and the process ends (step S62). If the total amount of the unsettled small payments including the new payment does not exceed the preset limit (step S5).
6), a signal to approve the payment is transmitted to the read / write device (step S58), and the received new small payment information is stored in the information storage unit 25 via the information storage unit management unit 24. (Step S59).

Then, the unsettled payment including the new payment
The total amount of the small payment exceeds the preset threshold
It is checked whether or not there is (Step S60)
If there is, the information of the small payment in the information storage unit 25
Make settings so that no more information can be written. Sand
That is, the signal processing unit 23 sends the information storage unit management unit 24 a
Directory access control to record small payment information
The information is transmitted to the information transmitting unit 21 _-iProhibit write requests from
(Step S61).
The process ends (step S62). Also new payment
The total amount of outstanding small payments, including
If the reference amount is not exceeded (step S6
0), as it is, that is, the information of the next small payment
A series of processing is terminated while information can be additionally stored.
(Step S62).

Next, a settlement process, which is an operation when the IC card 10 is used as a contact IC card, will be described. For example, the user inserts the IC card 10 into a non-contact type IC.
If an attempt is made to use the card for a small payment and the use is not permitted, the user performs a settlement process on the IC card 10. In this case, the user first mounts the IC card 10 on the read / write device of the payment terminal device. As a result, the lead /
Power is supplied from the writing device to the IC card 10 via the electrode 13, and processing in the IC card 10 is started.

Following the start of power supply, a signal including a signal for establishing a communication path is transmitted from the read / write device, and the IC card 1 is transmitted as in the case of the small payment processing.
0, any one of the information transmission units 21 _-j (j = 1 to 4) capable of decoding a signal to be transmitted among the plurality of information transmission units 21 _{-1 to} 21 _-4 responds thereto. , I
A communication path is established between the C card 10 and the read / write device. In the case of the settlement process, since communication is performed in a contact manner, either the third information transmission unit _21-3 or the fourth information transmission unit _21-4 is used.

After the process for establishing communication is completed, an authentication process for checking whether or not the user is a true holder of the IC card 10 is performed. Then, when it is confirmed that the current user is the true holder of the IC card 10, the IC card 10 is issued according to the request from the settlement terminal device.
The signal processing unit 23 of the card 10 sequentially reads out the small payment information stored in the information storage unit 25 via the information storage unit management unit 24, and outputs the information to the settlement terminal device via the information transmission unit 21- _j .

The settlement terminal device communicates with a host computer or the like as appropriate while accepting interactive operations from the holder of the IC card 10 as necessary, and sequentially performs settlement processing for each small payment item, ie, A permission process for payment of the charged amount is performed. Then, for the small payment information for which the payment has been completed, the effect is notified to the IC card 10 from the payment terminal device, and the signal processing unit 23 stores the small payment information in such a manner that the small payment information is substantially deleted. The information storage unit management unit 24 deletes the information on the information storage unit 25.

When a series of payment processing is completed, finally, the signal processing unit 23 of the IC card 10 compares the total unpaid small payment amount with the reference amount, similarly to the use in the non-contact mode shown in FIG. If it is equal to or less than the reference amount, the information storage unit 2
5, the access control information is re-set so as to permit access from the information transmitting unit 21 _-i (i = 1 and 2), that is, the information transmitting unit by the non-contact method, and a series of processing ends. . Thereby, the total amount of the unsettled small payment is basically reset to 0 yen, and the user can make a small payment again by using the IC card 10 in a non-contact manner.

As described above, the IC card 10
At the time of ordinary small payment, this is used as a non-contact type IC card and, for example, the IC card 10 is read /
Payment can be made only by a simple operation of holding the player over the light device. Then, in a more secure processing mode such as the contact mode, the payment processing is performed by confirming the payment once again for the small payment, and the payment of the actual fee is approved.

At this time, if the sum of the non-contact payments is equal to or less than a predetermined reference amount, the IC card 10 can be used for a small payment. If the total amount of the small payment exceeds the reference amount, in the processing in the IC card 10, the new data is stored in the built-in memory 17 (information storage unit 25) by the non-contact method so that the new data cannot be stored. Because the access information is controlled, such payments cannot be made substantially. Then, by performing the above-described settlement processing, the non-contact type payment information stored in the IC card 10 is reset, and the IC card 1 is returned again.
Payment can be made using 0 in a non-contact manner.

As described above, the IC card 10 of the present embodiment
In this case, the IC card 10 as electronic money or a credit card is realized by combining the advantages of both methods, that is, high convenience in a non-contact type and high security in a contact type, so that it is convenient and convenient. It is a highly secure card.

Note that the present invention is not limited to the present embodiment, and various suitable modifications are possible. For example, in the present embodiment, an IC card using the present invention as electronic money has been described as an example, but the scope of the present invention is not limited to this. It has a plurality of communication means and controls access rights to the contained memory according to the communication means, thereby substantially controlling processing executed according to the communication means and security for the same memory. If so, it may be applied to any target. Further, similarly to the present embodiment, in the case of applying to electronic money, there are various application methods, and there is no limitation. For example, in the case of applying to a prepaid card, only the process of setting the usable limit at the beginning is performed by a contact-type highly secure process, and thereafter, the process of actually paying up to that limit is not performed. It is conceivable that such a method is performed by a highly convenient method using a contact method, and such a use form is also within the scope of the present invention.

In the small payment process of the present embodiment, when new small payment information cannot be stored, the signal processing unit 23 of the IC card 10 notifies the read / write device of the fact as an error notification. I was trying to do it. However, the configuration may be such that the process is simply terminated without performing such an error notification. The purpose of the present invention is to prevent data from being actually stored in a memory. In this case, an interface with a read / write device and an interface with a user are required.
It may be set arbitrarily.

Further, the present invention is required to have a plurality of communication means, but it is necessary to have at least one of each of a contact type and a non-contact type as in the present embodiment. is not. It is clear that the IC card has a plurality of communication means even if it is a contact type or a non-contact type and has a plurality of communication means having different protocols.
It is within the scope of the present invention. In addition, the hardware configuration of the IC card, the type of communication protocol, etc. are also arbitrary configurations,
Any protocol may be used. In addition, the present invention is not limited to a card-type device, and can be applied to a device having an arbitrary shape and shape such as a tag shape.

[0048]

As described above, according to the present invention,
Portable information that can be used by a plurality of communication means, can perform access control on the memory according to the communication means used, and can be used in a desired form according to the communication means A processing medium can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a hardware configuration of an IC card according to an embodiment of the present invention.

FIG. 2 is a functional block diagram of the IC card shown in FIG. 1;

FIG. 3 is a diagram illustrating a storage state of information in an information storage unit of the IC card illustrated in FIG. 2;

FIG. 4 is a diagram illustrating a configuration of access control data for each storage unit illustrated in FIG. 3;

FIG. 5 is a flowchart illustrating a flow of a process executed when communication is performed by a non-contact method in the IC card illustrated in FIG. 2;

[Explanation of symbols]

 Reference Signs List 10 IC card 11 Antenna coil 12 Non-contact I / F unit 13 Electrode 14 Contact I / F unit 15 Switching unit 16 CPU 17 Memory 21 Information transmission unit 22 Information transmission unit identification unit 23 Signal processing unit 24 Information storage unit management unit 25 Information storage unit

Claims (5)

[Claims] A plurality of communication means for communicating with an external device; a communication means selection means for selecting one of the communication means; a storage means for storing desired data; Signal processing means for accessing the storage means to perform desired signal processing based on communication; and access control means for controlling access to the storage means by the signal processing means in accordance with the selected communication means. And a portable information processing medium having: 2. The communication device according to claim 1, further comprising: a contact-type communication unit that communicates with the external device in a contact manner via an electrode; and a non-contact communication unit that communicates with the external device in a non-contact manner by wireless communication. The portable information processing medium according to claim 1, comprising: 3. The portable information processing medium according to claim 1, wherein the signal processing unit performs a predetermined process according to the selected communication unit. 4. When the predetermined access to the storage unit is restricted by the access control unit, the signal processing unit transmits a predetermined communication content based on the restricted state to the external device. The portable information processing medium according to claim 1, wherein the portable information processing medium is notified to a device. 5. The signal processing unit according to claim 1, wherein when the access control unit restricts a predetermined access to the storage unit, the signal processing unit interrupts the signal processing being performed. A portable information processing medium according to claim 1.