JPH10334205A - Ic card and memory package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow the single memory package to conduct arithmetic processing and to record lots of capacity of data by providing an IC and a flush memory in a base card. SOLUTION: A recessed part 14 on the front side of a base card 11 is formed at a position corresponding to the position of the connector of a conventional IC card, and an IC 15 is mounted on the recessed part 14. The IC 15 is a one- chip integrated circuit that integrates storage, arithmetic and control functions required for desired information processing such as password processing and encryption processing. The IC 15 is provided with a security circuit to prevent illegal write and forgery of data and pluralities of contact terminals for data input output and they are exposed on the front side of the base card 11 and extended almost over the front side. The IC 15 is accessed by an IC card reader/ writer via a terminal array. A simultaneous deletion flush memory 17 is provided onto a recessed part 16 to store large capacity of data. A contact terminal 13 is provided for the memory 17 and exposed on the same contact face as that of the IC 15 and extended almost all over of the front side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an IC card and a memory package applied to a credit card, a small memory card, and the like.

[0002]

2. Description of the Related Art In recent years, IC cards have been increasingly applied to credit cards at banks, medical examination cards at hospitals, and the like. IC card is 37mm long and 45m wide
m, 0.75mm thick credit card size CP
It incorporates a U and a memory, and has a security function by performing various types of information processing such as authentication processing and encryption processing in the card. This IC card is standardized and spread by the International Organization for Standardization (ISO) and the like.

However, the capacity of a memory that can be incorporated in a conventional IC card is about 8 to 32 KB, and can store only the minimum necessary data such as a user's personal identification number. It could be used only for limited applications such as.

[0004] For example, when an IC card is used in a medical system, it is conceivable that the hospital uses the IC card held by the patient as an authentication key to browse the patient's medical information. However, since only the authentication number can be stored in the memory inside the IC card,
Large-capacity data such as patient medical information needs to be stored in another location such as a computer in a hospital. For this reason, hospitals need to manage medical information for each patient,
Patients could not have their own medical information at hand. In addition, there is a risk that medical information on the hospital side may be leaked illegally without the patient's knowledge.

On the other hand, it is possible to use a medium having a large recording capacity, such as a memory card, and store medical information and the like of a patient in the medium. However, a memory card does not have an arithmetic processing function like an IC card, and is not suitable for storing medical information or the like due to security problems. Further, the planar shape of the memory card is 54 mm × 85.6 mm, which is the same as that of an IC card, but its thickness is about 3.3 mm, so that an existing IC card reader / writer cannot be used.

[0006] Also, SSFDC (Soliday) recently used as a memory card smaller than a conventional memory card is used.
d State Floppy Disk Card) has a thickness of 0.76 mm, the same as an IC card, but its planar shape is 37 mm x 46 mm, which is different from an IC card. Can not be secured.

[0007]

As described above, since the conventional IC card has only a small-capacity memory,
There is a problem that large data cannot be recorded. A memory card or SSFDC capable of recording a large amount of data does not have an arithmetic processing function unlike an IC card, and has a conventional IC card reader / reader.
There was a problem that a writer could not be used.

The present invention has been made to solve such a problem, and an object of the present invention is to provide an IC card and a memory package capable of recording a large amount of data while having an arithmetic processing function. I do.

[0009]

In order to solve the above-mentioned problems, the present invention provides a base card in which an IC is incorporated.
In the IC card formed with the contact terminals for accessing the base card exposed on the surface of the base card, the flash memory built in the base card and the IC card exposed on the surface of the base card to access the flash memory are formed. And a formed contact terminal.

According to another aspect of the present invention, there is provided a memory package in which a flash memory is built in a base card and contact terminals for accessing the flash memory are exposed on the surface of the base card. And a contact package formed on the surface of the base card to access the IC.

In this case, since an IC and a flash memory are built in the base card, and the corresponding contact terminals are provided independently on the surface of the base card, one IC card (or memory package) is mounted on the IC card. It can be used both as a card and as a memory card.

Here, if the IC and the flash memory are electrically connected in the base card, data can be easily handled between the IC and the flash memory. If data to be recorded in the flash memory is encrypted by the IC, a security function such as data protection is added to the function as the memory card, and the confidentiality of the recorded data is enhanced.

Further, security can be further improved by permitting reading and writing of data in the flash memory only when the IC is accessed according to a predetermined procedure.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A security memory card according to one embodiment of the present invention will be described below with reference to the drawings. This security memory card is obtained by adding a large-capacity memory function to the information processing function (especially, security function) of an IC card.

FIG. 1 and FIG. 2 are a plan view and a sectional view showing the configuration of the security memory card. The base card 11 serving as the main body of the security memory card 10 is formed of plastic, and its outer shape is 37 mm long, 45 mm wide, and 0.75 mm thick in accordance with the standard of an IC card standardized by ISO. I have.

On the surface of the base card 11, rectangular recesses 14 and 16 are provided. These recesses 14, 16
Of these, the concave portion 14 is formed at a predetermined portion shown at the upper left in the figure corresponding to the position of the connector of a normal IC card. Note that a magnetic stripe for recording authentication data or the like may be formed on the surface of the base card 11 as in the case of the IC card.

An IC 15 is mounted in the recess 14. In this case, the bare chip of the IC 15 may be directly mounted in the recess 14 and sealed, or the IC 15 packaged as an IC module may be mounted in the recess 14.

The IC 15 integrates storage, calculation and control functions required for desired information processing, for example, password processing and encryption processing, on a single chip. In this case, I
C15 is provided with a security circuit for preventing unauthorized writing and falsification of data.

A plurality of, for example, eight contact terminals 12 for inputting and outputting data are provided on the surface of the IC 15. These contact terminals 12 are exposed on the surface of the base card 11 and extend substantially flush with this surface.
The terminal arrangement of the contact terminals 12 is made common to the terminal arrangement of the IC card so that the IC 15 can be accessed via an existing IC card reader / writer.

On the other hand, the recess 16 has a batch erase type EEPROM
An OM, a so-called flash memory 17, is provided. The flash memory 17 is for recording a large amount of data that cannot be recorded by the IC 15. For example, when the security memory card 10 is used as a medical consultation ticket card, medical information (electronic medical record) of a patient is stored. Be recorded.

Here, as the flash memory 17,
A NAND flash memory similar to the one incorporated in an SSFDC (Solid State Floppy Disk Card) is used. This NAND flash memory has a relatively large capacity (2 to 16 MB) as compared with the memory capacity (8 to 16 KB) of a general IC card, and is a memory with high speed and low power consumption.

The flash memory 17 is provided with a plurality of, for example, 22 contact terminals 13 for reading / writing data, and these contact terminals 13 are formed on the surface of the base card 11 in the same manner as the contact terminals 12. Ie IC
15 and is exposed on the same contact surface and extends almost flush with the surface.

The IC 15 and the flash memory 1
7 does not need to be electrically connected in the base card 11. However, if the IC 15 and the flash memory 17 are mounted on the same substrate, for example, by expanding the substrate portion in the OMTP, they can be electrically connected in the base card 11. In this case, data can be easily handled between the IC 15 and the flash memory 17 without using a PC card adapter described later. Further, a function of prohibiting reading / writing to the flash memory 17 can be added to the IC 15 unless the IC 15 is accessed according to a predetermined procedure.
The confidentiality of the data in the flash memory 17 can be improved.

Next, the security memory card 10
Is used via a PC card adapter 20 as shown in FIG. This PC card adapter 20 is a reader / writer of the security memory card 10.
It is used as a writer, is formed in a card shape conforming to the PCMCIA standard, and is used in a state of being mounted in a PC card slot of a notebook personal computer or the like. The shape of the adapter is not limited to PC card
C can be used.

The PC card adapter 20 has a card storage section 21 for removably storing the security memory card 10 therein. The insertion slot 22 of the card storage section 21 is opened at the rear end face of the main body.

An eject mechanism (not shown) for removing the stored security memory card 10 is provided in the PC card adapter 20, and the eject button 23 of the eject mechanism is connected to the insertion port 2 on the rear end face of the main body.
2 is installed in the main body so as to be able to protrude and retract.

When the security memory card 10 is inserted into the card storage unit 21, the security memory card 10 is held in a state where the eject button 23 is protruded.
The security memory card 10 in the card storage unit 21 is ejected outside the main body.

FIG. 4 is a block diagram showing a system configuration of the security memory card 10 and the PC card adapter 20 described above. Security memory card 1
0 is roughly divided into two parts: an IC card part by the IC 15 and the IC connector 36, and a memory card part by the flash memory 17 and the memory connector 37. The IC connector 36 and the memory connector 37 correspond to the contact terminals 12 and 13 in FIGS.
It is constituted by.

On the other hand, the PC card adapter 20 is
1. IC interface (hereinafter, I / F) 42, memory interface (hereinafter, memory I / F) 43, serial I / O controller (hereinafter, SIO controller)
44, a read / write controller (hereinafter, R / W controller) 45, a memory 47, and a PCMCIA interface (hereinafter, PCMCIA / F) 46. It is preferable that the CPU 41, the SIO controller 45, the R / W controller 45, and the memory 47 are formed as one microcomputer as a microcomputer.

When performing information processing using the security memory card 10 and the PC card adapter 20, the security memory card 1 and the PC card adapter 20 are used as described with reference to FIG.
0 is attached to the PC card adapter 20. At this time, I
The IC card portion is connected via the I / F 42 by the C connector 36, and the memory I
The memory card portion is connected via / F43. Subsequently, the PC card adapter 20 is inserted into a PC card slot of a personal computer (not shown),
Connect via MCIAI / F46. Desktop P
In C, it is possible to connect with an interface such as PCMCIA, ISA, USB, and PCI.

In these cases, the IC card portion and the memory card portion of the security memory card 10 are independent from each other, and have the corresponding IC connector 36 and memory connector 37, respectively. Each card part can be accessed independently. That is, the security memory card 10 can be handled in the same manner as a normal IC card or memory card.

In this case, in the IC card portion, the IC 15
A program for performing predetermined information processing such as a password processing and an encryption processing is stored in the ROM 34 of the IC 31.
Operates, and the IC controller 32 and the IC connector 3
6, necessary information is input and output between the PC card adapter 20 and a personal computer (not shown), and a personal identification number process and an encryption process as an IC card are performed.

At this time, the RAM 33 is used to store primary data accompanying the processing, and the IC controller 32
It controls input and output data with the C card adapter 20. The EEPROM 35 is used as a data memory of the IC 15 and stores data such as a password for password processing and an encryption key for encryption processing. In addition to the data stored in the EEPROM 35, specific data such as an encryption / decryption program and an authentication program stored in the ROM 34 are stored in a state where external reading is impossible. In advance, security as an IC card is ensured.

In the memory card portion, data input from the personal computer via the PC card adapter 20 is received via the memory connector 37 and written into the flash memory 17, and conversely, the data in the flash memory 17 is stored in the memory card. Connector 37 and PC
It is sent to the personal computer via the card adapter 20. At this time, as described above, the flash memory 1
7 is EEPRO as data memory of IC card part
Relatively large data that cannot be recorded in M35 is handled.

On the other hand, in the PC card adapter 20, a predetermined program stored in the memory 47 is executed by the CPU 41.
, The security memory card 10
And a personal computer. Specifically, the ICI /
Via the F42, the memory I
The necessary data processing is performed on the personal computer via the PCMCIA I / F 46 via the / F43. The R / W controller 45 controls read / write processing for the IC card portion and the memory card portion of the security memory card 10, and the SIO controller performs serial / parallel conversion of the data at this time.

Further, the IC card portion and the memory card portion of the security memory card 10 can be operated in cooperation with each other. For example, when the IC card portion has an encryption processing function, data to be recorded in the flash memory 17 is first sent to the IC card portion for encryption. The encrypted data is returned from the security memory card 10 to the PC card adapter 20 once, sent to the memory card portion, and written to the flash memory 17. When reading data from the flash memory 17, the data is first decrypted by the IC card unit,
The data is output to a personal computer or the like. As a result, a security function such as data protection can be added to the function of the security memory card 10 as a memory card. That is, the conventional I
Compared to using a C card or memory card alone,
High security can be ensured.

As described above, in the security memory card 10 of the present embodiment, the IC 15 having the security function and the flash memory 17 having the large-capacity memory function are mounted on the same base card 11, and each of them corresponds to the corresponding one. By providing the IC connector 36 and the memory connector 37, one card can be used as both an IC card and a memory card.

Since the external shape of the security memory card 10 and the mounting position of the IC 15 are the same as those of the IC card, at least the IC 15 can be used with an existing IC card reader / writer.

The flash memory 17 can use a relatively large memory capacity of about 2 to 8 MB in the same size as a conventional IC card, so that, for example, medical information of a patient can be electronically stored on a medical consultation ticket card. It is possible to record as a medical record or to save transaction records on a financial authentication / certification card.

Further, by using the IC card portion and the memory card portion in cooperation with each other, for example, an encryption key and a protocol can be set for each security memory card 10 and data to be stored in the flash memory 17 can be stored in the IC 15. , It is possible to realize higher security than a simple IC card or memory card.

It should be noted that the present invention is not limited to the above embodiment, but can be implemented with various modifications as follows. In the above embodiment, an example in which the base card 11 is formed in the same shape as the IC card to add a large-capacity memory to the IC card has been described. Thus, a security function may be added to SSFDC. In this case, the flash memory 17
The mounting position and the signal arrangement of are made to correspond to the SSFDC standard.

In the above embodiment, the contact terminal 1 of the IC 15
2 and the contact terminals 13 of the flash memory 17 are exposed on the same surface of the base card 11, but these contact terminals 12 and 13 may be exposed on different surfaces of the base card 11, respectively.

In the above embodiment, an example was described in which the card adapter 20 was used as a reader / writer device of the security memory card 10. However, the reader / writer device is installed in an electronic device such as a personal computer, a portable terminal, or a digital still camera. It may be built directly.

[0044]

As described above, according to the present invention, since an IC and a flash memory are provided in a base card, arithmetic processing can be performed by one IC card (or memory package) and a large capacity can be obtained. Data can be recorded.

Further, by electrically connecting the IC and the flash memory in the base card, data can be easily handled between the IC and the flash memory.
Furthermore, the data to be recorded in the flash memory is encrypted by the IC, or the reading and writing of the data in the flash memory is permitted only when the IC is accessed according to a predetermined procedure. It can enhance confidentiality and security.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of a security memory card according to an embodiment of the present invention.

FIG. 2 is an exemplary sectional view showing the configuration of the security memory card according to the embodiment;

FIG. 3 shows the embodiment and an AC used together with the embodiment.
Figure showing the appearance of the card adapter

FIG. 4 shows the embodiment and an AC used together with the embodiment.
Block diagram showing the system configuration of the card adapter

[Explanation of symbols]

 Reference Signs List 10 security memory card 11 base card 12, 13 contact terminal 14, 16 recess 15 IC 17 flash memory

Claims (8)

[Claims] An IC is built in a base card, and the IC
An IC card formed with contact terminals for accessing the base card exposed on the surface of the base card; and a flash memory built in the base card; and An IC card comprising: an exposed contact terminal; 2. The IC card according to claim 1, wherein the IC and the flash memory are electrically connected in the base card. 3. The IC card according to claim 1, wherein said IC has a function of encrypting data to be recorded in said flash memory. 4. The IC card according to claim 1, wherein said IC has a function of permitting reading and writing of data in said flash memory only when accessed in a predetermined procedure. 5. A memory package in which a flash memory is built in a base card, and contact terminals for accessing the flash memory are exposed on a surface of the base card. And a contact terminal formed on the surface of the base card so as to access the IC. 6. The memory package according to claim 5, wherein said flash memory and said IC are electrically connected in said base card. 7. The memory package according to claim 5, wherein said IC has a function of encrypting data to be recorded in said flash memory. 8. The memory package according to claim 5, wherein said IC has a function of permitting reading and writing of data in said flash memory only when accessed by a predetermined procedure.