JPS63175957A - Temporary storage device for data of ic card - Google Patents

Abstract

PURPOSE:To hold the secret of data stored in an IC card by reading the identification data of the IC card again when an operation such as the exchange of a battery or the like is completed to return the IC card, and preventing the data from being transmitted to the IC card when this identification data does not coincide with the identification data read before the operation. CONSTITUTION:After the operation such as the exchange of the battery or the like is completed, the IC card is set to this temporary storage device again. In response to the command of a transmission command means, the identification data of the set IC card is read initially by an identification data reading means. Then, when the identification data read by the identification data reading means coincides with the identification data stored in a data storing means, the data stored in the data storing means is transmitted to the set IC card. In such a manner, since the data is transmitted to the IC card with which the identification data coincides, the data of the IC card is not stolen.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for temporarily storing data stored in an IC card.

[Prior Art] Magnetic cards such as so-called cash cards and credit cards have been widely used for transactions at banks, credit companies, etc., but in recent years, IC cards have been proposed as an alternative to these magnetic cards. There is.

As this IC card, for example, JP-A-60-196
There is one shown in Publication No. 876. This IC card consists of a data storage means, a data processing means, a data input means, and a data display means.
A transaction is executed by inputting transaction data such as the type of transaction and transaction amount, and transmitting the transaction data stored in this IC card to a terminal device at the time of transaction.

Therefore, according to this IC card, various transaction data can be reliably entered and stored in one's own IC card before going to a bank etc., so the operating procedures of the terminal device are greatly reduced, and transaction data can be stored in the IC card. Processing efficiency can be increased.

[Problems to be Solved by the Invention] A general IC card has a built-in battery, and the data storage means, data processing means, etc. are driven by the battery.

Therefore, when replacing the battery, the data stored in the data storage means will be lost, and various data must be re-entered into the IC card before the battery is replaced, which is time-consuming. Ta.

In particular, if there is a large amount of data stored in the IC card before the battery is replaced, there is a risk that the data will be forgotten when re-entering unless it is written down, which requires additional effort.

Therefore, the main object of the present invention is to provide a device that temporarily stores data stored in an IC card during work such as replacing the battery of the IC card, and transmits the data to the IC card after replacing the battery. It is.

[Means for solving the problem] The temporary storage device for IC card data according to the present invention includes:
a reading command means for commanding the reading of data stored in the IC card; a transmission command means for commanding the transmission of the data to the IC card; and an identification data reading means that reads identification data specifying an IC card in response to a command from the reading command means or the sending command means. Further, the temporary storage device for data of the IC card includes data storage means for storing the data and identification data read by the data reading means and the identification data reading means, and a data storage means for storing the data and identification data read by the data reading means and the identification data reading means, and for reading the identification data in response to the sending command means. and data sending means for sending the data stored in the data storage means to an IC card for storage when the identification data read by the means matches the identification data stored in the data storage means.

[Function] When performing work such as replacing the battery of an IC card, first, before the work is performed, the IC card is stored in a temporary storage device for data on the IC card (hereinafter abbreviated as temporary storage device) according to the present invention. ).

In response to the command from the reading command means, the identification data reading means reads the identification data specifying the IC card, and the data reading means reads the data stored on the IC card and stores it in the data storage means. be done.

Then, when the work such as battery replacement is completed, the IC card is set in this temporary storage device again. In response to the command from the sending command means, the identification data reading means first reads the identification data of the set IC card. If the identification data read by the identification data reading means matches the identification data stored in the data storage means, the data stored in the data storage means is set by the data sending means. I'm there
It is sent to the C card and stored.

In this way, the data temporarily stored in this temporary storage device during work such as battery replacement is sent to the IC card with matching identification data after the work, so the data on the IC card can be transferred to other IC cards. Cards etc. cannot be stolen.

[Embodiment] FIG. 2 is a schematic block diagram showing the electrical configuration of an IC card data temporary storage device according to an embodiment of the present invention.

As shown in FIG. 2, this IC card data temporary storage device 1 (hereinafter referred to as this device 1) is equipped with a CPU 2, and a ROM 3, a RAM 4, and a display circuit 5 are connected to the CPU 2. There is. In addition, CPU2 has
A contact portion 7 is connected via an interface circuit 6.

The ROM 3 stores fixed data such as programs according to the flowcharts of FIGS. 1A and 1B, which will be described later. When the IC card 10 is set in the device 1, the contact section 7 comes into contact with a contact provided on the IC card 10, and the data stored in the IC card 10 is transferred from the contact section 7 to the interface circuit 6. The data is input via the computer and stored in the RAM 4.

The display circuit 5 is used to display instructions for operating the device 1 to the operator.

Next, the configuration of the IC card will be explained using FIGS. 3 and 4.

FIG. 3 is a schematic block diagram showing the electrical configuration of the IC card 10.

In the figure, the input/output boat 11 has an input/output line terminal 1.
8 is provided. Input/output boat 11, CPU 12,
ROM 13, RAM 14, display 15, and keyboard 16 are connected by data bus 19. These input/output boards 11, CPU 12, ROM 13, RA
Power is supplied to the M14, display 15, and keyboard 16 from a dry battery 17.

The input/output boat 11 is for communicating with terminal devices during transactions. In addition, the ROM 13 stores fixed data such as 10 numbers and programs for transaction processing.
The RAM 14 is for storing data necessary for each transaction, such as a password and transaction amount. keyboard 1
6 is for inputting data necessary for each transaction into the RAM 14, and a display 15 is for displaying the input data to the customer.

FIG. 4 is an external perspective view of the IC card 10.

In the figure, a power switch 21, a keyboard (touch keys) 22, a liquid crystal display 23, and contacts 24 are provided on the front panel of an IC card body 20. The power switch 21 is for supplying power to each component of the IC card shown in FIG.
enters various data necessary for the transaction into the IC card and performs RA.
This is to be stored in M14. Liquid crystal display 23
is for displaying the above input data to the customer. This liquid crystal display 23 is a voltage alarm display section 23.
1, and when the dry battery 17 is exhausted and the voltage falls below a certain standard, this voltage alarm display section 23
1 indicates this. The contact 24 is connected to this I
This is for communicating with a terminal device or the device 1 of this embodiment when the C card is inserted into these devices.

Next, FIG. 5 is a diagram showing a memory map of the IC card 10, and this memory is composed of the ROM 13 and RAM 14 shown in FIG.

In the figure, the ROM includes an area 131 where a program for transaction processing is stored, an area 132 where a KEY code is stored, and an area 133 where an ID number (identification number) is stored.

The KEY code is a code unique to a system, and for example, in an IC card system at a bank, a bank number unique to that bank is used. Further, the ID number is a number that identifies an IC card, and a unique number is set for each IC card. The RAM includes an area 141 that stores various data necessary for each transaction.

On the other hand, FIG. 6 is a diagram showing a memory map of the device H1 in this embodiment, and this memory is the ROM shown in FIG.
3 and RAM4.

In the figure, the ROM includes an area 31 where an operating program for the CPU 2 is stored and an area 32 where a KEY code is stored. In addition, RAM is IC card 1
An area 41 for storing No. 101 read from 0; 1.
Area 42 for storing data read from the C card 10
Contains.

Next, the operation of the apparatus 1 in this embodiment will be explained using the flowcharts of FIGS. 1A and 1B.

FIG. 1A shows the operation when reading data stored in the IC card 10.

Before replacing the battery of IC card 10, etc.,
Set 0 to this device 1. First, it is determined whether the IC card 10 is set in this device 1 (
Step 81). When the IC card 10 is set, the KEY code stored in the storage area 132 (FIG. 5) of the ROM 13 of the IC card 10 is read, and the KEY code stored in the storage area 32 (6th It is determined whether the key code matches the KEY code stored in FIG.

If both KEY codes do not match or if EY Cony is not read from the set card,
Finish the operation. If both KEY codes match, then storage area 1 of ROM 13 of IC card 10
The ID number stored in 33 is read and this device 1
is stored in the storage area 41 of the RAM 4 (step 8
3). Then, various data stored in the storage area 141 of the RAM 14 of the IC card 10 are stored in the storage area 42 of the RAM 4 of this device 1 (step 84
).

In this way, operations such as accessing the data stored in the IC card 10 in the device 1 and replacing the battery are performed. Then, when the work is finished, the IC card 1 is again
Set 0 to this device 1.

FIG. 1B shows data stored in this device 1 being transferred to an IC.
The operation of returning the card to the card 10 is shown.

First, it is determined whether the IC card 10 is set in the device 1 (step 85).

If the IC card 10 is set, the IC
Storage area 132 of ROM 13 of card 10 (Figure 5)
The KEY code stored in the device is read and this device 1
It is determined whether the key code matches the KEY code stored in the storage area 32 (FIG. 6) of the ROM 3 (step 86).

If both KEY codes do not match or if the KEY code is not read from the set card, the operation ends.

If both KEY codes match, then the ID number stored in the storage area 133 of the ROM 13 of the IC card 10 is read (step S7). and,
It is determined whether the read ID number matches the 10 number stored in the storage area 41 of the RAM 4 of this device 1 (step 88).

If both ID numbers do not match, the operation ends.

If both ID numbers match, the RA of this device 1
The data stored in the storage area 42 of M4 is sent to the IC card 10 and stored in the storage area 141 of the RAM 14 of the IC card 10 (step 9). Next, the data stored in the storage area 42 of the RAM 4 of this device @1 is erased (step 510).

In this way, data temporarily stored in the device 1 during work such as battery replacement of the IC card 10 is returned to the IC card 10 after the work.

As mentioned above, this device M1 does not send data if the ID numbers do not match, so there is no risk that the data temporarily stored in this device @1 will be stolen using another card. .

In the above embodiment, by setting the IC card 10 in this device 1, a command to read the data stored in the IC card 10 is issued. Alternatively, a key may be provided for reading the data by pressing this key.

Furthermore, in the above embodiment, after work such as battery replacement, the IC
By setting the card 10 into this device 1 again, a command to send data to the IC card 10 is issued.This device 1 is provided with a key for data sending command, and this key can be pressed. The data transmission may be commanded by the command.

[Effects of the Invention] As described above, according to the present invention, when performing work such as replacing the battery of an IC card, the data stored in the IC card is temporarily stored, and after the work is performed, the data is stored. Since the data can be returned to the IC card again, there is no need to re-enter the data after the work is completed, and even if there is a large amount of data stored on the IC card, there is no need to keep a copy of that data. Moreover, when reading the data stored on an IC card, the identification data of the IC card is also read at the same time, and the data is transferred to the IC card after work such as battery replacement is completed.
When returning the IC card to the card, the IC card's identification data is read again, and if this identification data does not match the identification data read before work, the data is not sent to the IC card, so other cards can be used. There is no risk that the data will be stolen, and the confidentiality of the data stored in the IC card is maintained.

[Brief explanation of the drawing]

1A and 1B are flowcharts for explaining the operation of an embodiment of the present invention, and FIG. 1A is an I
This shows the operation when reading data from a C card.
FIG. 1B shows the operation when sending data to an IC card. FIG. 2 is a schematic block diagram showing the electrical configuration of the same embodiment. FIG. 3 is a schematic block diagram showing the electrical configuration of the C card, and FIG. 4 is an external perspective view of the IC card. Figure 5 is a diagram showing the memory map of the IC card.
FIG. 6 is a diagram showing a memory map of one embodiment of the present invention. In the figure, 1 is a temporary storage device for IC card data;
2 is CPLJ, 3 is ROM, and 4 is RAM. Reference numeral 6 indicates an interface circuit, 7 indicates a contact portion, and 10 indicates an IC card. 1st A Atsushi IB (data 1 pre-emption) (data transfer ho) Figure 2 Figure 3 ■

Claims (2)

[Claims] (1) reading command means for commanding the reading of data stored in the IC card; transmission command means for commanding the transmission of data to the IC card; data reading means for reading stored data; identification data reading means for reading identification data for identifying an IC card in response to a command from the reading command means or the sending command means; the data reading means and the identification data; data storage means for storing data read by the data reading means and identification data; and in response to a command from the sending command means, the identification data read by the identification data reading means is stored in the data storage means. A temporary storage device for IC card data, comprising: data sending means for sending the data stored in the data storage means to the IC card and storing the data when the data matches the identification data. (2) The temporary storage device for IC card data according to claim 1, wherein the identification data is an identification number (ID number).