JPS63116284A - Ic card device - Google Patents

Abstract

PURPOSE:To prevent an IC card from illegal use due to robbery or the like and to improve the safeness of data by permitting the reading of stored data to a card reader when the current date and time are within a regulated period, and at the time other than the regulated period, inhibiting the reading. CONSTITUTION:An IC card 1 includes a CPU 2. When a reading command for data stored in a RAM 5 is applied from the card reader side through an I/O port 3, the CPU 2 decides whether the current time or date clocked by a timer 6 is included with the set period stored in the RAM 5 or not, and when the current time or date is included within the period, permits the reading of the data stored in the RAM 5 to the card reader. In case of a time or date other than the set period, the reading of the data stored in the RAM 5 to the card reader is controlled so as to be inhibited. Since power is always supplied from a backup power supply 7 to the RAM 5 and the timer 6, memory holding and clocking can be attained.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an IC card device, and particularly relates to an IC card device that is capable of reading data stored only within a predetermined time zone or period. .

[Prior Art] Recently, cards with personal identification information stored thereon have been used to identify tools used to operate cash registers, etc., when it is necessary to decide whether or not to permit entry to places that must be kept confidential. is now used.

[Problems to be Solved by the Invention] However, in the past, there are cases in which reading of information stored on a card is not restricted. In such cases,
If the card is stolen, the data can be easily read and there is a risk of unauthorized use.

In general, cards used for the above-mentioned purposes often have a fixed usage time, so it is desirable from the viewpoint of safety to limit data reading to the usage time of the card.

Therefore, the main object of the present invention is to provide an IC card device that can prevent unauthorized use by preventing data from being read outside a predetermined time period.

[Means for Solving the Problems] The IC card device of the present invention includes a storage means for storing data, a timekeeping means for measuring the current time or date, and a data read command given via a card reader. a determining means for determining whether or not the current time or date measured by the clocking means is within a predetermined period, and transmitting the data stored in the storage means to a card reader based on the determination result of the determining means. fi, IJ 11 that controls permission to read
1 means.

[Operation] In this invention, when it is determined that the current time or date is within a predetermined period, reading of the data stored in the storage means to the card reader is permitted, and the current time or date is determined to be within a predetermined period. When it is determined that the date is outside the predetermined period, reading of the data stored in the storage means to the card reader is prohibited.
The data stored in the C card is not read outside except at a preset time.

[Embodiment] FIG. 3 is a schematic block diagram showing the electrical configuration of an IC card device according to an embodiment of the present invention. In Figure 3, I
The C card 1 is provided with a CPU 2. CPU2 has
The input/output boat 3, ROM 4, RAM 5, and timer 6 are connected. The input/output boat 3 is electrically connected to the card reader when the IC card 1 is inserted into the card reader.

Then, power is supplied to the IC card 1 via the input/output boat 3.
data is exchanged. ROM4 is CPU2 as shown in Fig. 1 which will be explained later.
The operating program is stored therein. The RAM 5 includes storage areas as shown in FIGS. 4 and 5, which will be explained later. For example, a personal identification code and data indicating the usable period of the card are stored in the storage area. The timer 6 measures the current time or date.

RAM5 and timer 6 are constantly supplied with power by backup m1li7 for memory retention and timekeeping.

In response to a command to read data stored in the RAM 5 from the card reader side via the input/output board 3, the CPU 2 reads the current time or date measured by the timer 6 for the set period stored in the RAM 5. If the current time or date is within the set period, readout of the data stored in RAM 5 to the card reader is permitted; if it is outside the set period, readout is permitted. , controls to prohibit reading of data stored in the RAM 5 to the card reader.

4 and 5 are illustrative views showing storage areas of the RAM 5 shown in FIG. 3. In the example shown in FIG. 4, the storage area 5a contains the card holder's PIN code, time data indicating the start time of the time slot in which the IC card can be used, for example 9:00, and time data indicating the end time. For example 1
5:○O is stored. In the example shown in FIG. 5, the storage area 5b contains data indicating the card holder's PIN code and the expiration date of the IC card, such as 1990.
Year) = 07 (Monday): 27 (Sunday) are stored. RAM
Since the stored data in No. 5 is not read out to the outside unless read permission is granted by the CPU 2, the data security is extremely high compared to conventional cards.

FIG. 6 is a diagram showing an electronic cash register (ECR) to which an embodiment of the present invention is applied.

In FIG. 6, the ECR main body 10 is provided with a keyboard 11, a display 12, a printer 13, and a cash drawer 14, and further includes a card reader 15 and a keypad 16.
are connected. The keyboard 11 is used to input the department code of the product and the price data of the product. The display 12 displays data input from the keyboard 11. The printer 13 prints transaction details on receipt paper. The cash drawer 14 stores cash. The card reader 15 reads stored data from the IC card 1a. The keypad 16 is used by the operator to input his own personal identification code.

Next, the general operation of the ECR shown in FIG. 6 will be explained. Operators must use their own IC when operating the ECR.
Insert the card 1a into the card reader 15. It is assumed that data as shown in FIG. 4 is stored in the IC card 1a. The CPtJ2 of the IC cart 1a determines whether the current time measured by the timer 6 is in the time zone, for example, from 9:00 to 15:00. Then, reading of data stored in the RAM 5 is permitted within the time period, and reading of data is prohibited outside of the time period. Information as to whether data can be read is given to the ECR main body 10. When the data can be read and the operator inputs the PIN code from the keyboard 16, the CPU 2 of the IC card 1a determines whether the PIN code read from the RAM 5 matches the PIN code input from the keypad 16. , and gives the result to the ECR main body 10.

Also, from the ECR main body 10 via the card reader 15,
When there is a command to read data necessary for transaction processing;;
t, the CPU 2 of the IC card 1a reads the corresponding data (not shown) from the RAM 5 and provides it to the ECR main body 10.

FIG. 7 is a diagram showing a door opening/closing control device to which an embodiment of the present invention is applied. In FIG. 7, the door opening/closing control device is comprised of an operating section 20 and an opening/closing control section 21. The operation unit 20 is provided with a card reader 22, a keyboard 23, and a display 24. The card reader 22 reads card data from the IC card 1b. The keyboard 23 is for inputting a password. The display 24 displays operation guide characters. The opening/closing control section 21 includes a locking mechanism 25 for locking the door 19.

Next, the operation of the door opening/closing control device shown in FIG. 7 will be explained. First, the IC card 1b is inserted into the card reader 22. Accordingly, the CPU 2 of the IC card 1b starts the timer 6.
It is determined whether the current time given by is within a preset time zone or not, and the result is provided to the opening/closing control section 21. If the opening/closing control unit 21 is in a time period in which the IC card can be used,
A message prompting the user to enter a password is displayed on the display 24, and a message indicating that the card cannot be used is displayed outside the IC card usage time slot.

If it is possible to use an IC card, use keyboard 2.
Enter the PIN code from step 3. CPU of IC card 1b
2 compares and discriminates the input password code with the password code read from the RAM 5, and provides the result to the opening/closing control section 21. The opening/closing control unit 21 unlocks the locking mechanism 25 when the password codes match.

FIG. 2 is a flow diagram for explaining the general operation of an IC card processing device that reads data from an IC card and performs various control processes according to an embodiment of the present invention, and FIG. FIG. 2 is a flow diagram for explaining the operation of the IC card of one embodiment.

Next, the general operation of an IC card processing device that performs processing using an IC card will be described with reference to FIGS. 2 to 7. The IC card processing device waits until the IC card is inserted, and when the IC card is inserted, commands access to the storage area of the inserted IC card. The IC card performs operations as shown in FIG. 1, which will be explained later, and transmits to the IC card processing device whether or not access is possible. When receiving a message indicating whether or not access is possible from the IC card, if access is not possible, the display will display "This card cannot be used" and the card will be ejected and the operation will end. If access is possible, you will be asked to enter your PIN number. When a password is input, the input password data is given to the IC card. If it is determined by the IC card that the PIN numbers match, control operations are performed depending on each processing device, such as reading necessary data from the IC card or writing data to the IC card, and processing is performed. If finished, the card is released and the operation is finished.

Next, the operation of an IC card according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7.

The CPU 2 of the IC card waits until an access command is given from the IC card processing device via the input/output port 3, and when the IC card processing device commands access to the storage area, it reads the current time given by the timer 6. Then, the set time data stored in the RAM 5 is read. This set time data is, for example, a start time and an end time that define a time period in which the storage area of the IC card can be accessed. Next, the CPU 2 determines whether or not the IC card can be accessed based on these data,
The determination result is sent to the IC card processing device via the input/output port 3. Here, if access is possible, then the CPU 2 waits until it receives a command from the IC card processing device. For example, if a command is sent to determine whether the PIN codes match, the I
PIN code transmitted from C card processing device and RAM5
It is determined whether the code matches the password read from the FC card processing device, and the result is sent to the FC card processing device. Furthermore, when a command is given to read data necessary for processing by the IC card processing device, the corresponding data is read and sent to the IC card processing device via the input/output port 3. Then, when the IC card is handled from the IC card processing device, a setting operation is performed to return to the initial state.

In the above embodiment, the PIN code is checked in the IC card, but it may also be checked in the IC card processing device. Good too.

[Effects of the Invention] As described above, according to the present invention, in response to a data read command given from a card reader, it is determined whether the current time or date is within a predetermined period, and the If it is within the predetermined period, the stored data will be allowed to be read externally, and if it is outside the predetermined period,
Since the stored data is controlled to be prohibited from being read externally, the data cannot be read externally except during a predetermined time period, so the data is highly secure in the event of theft. Become.

[Brief explanation of the drawing]

FIG. 1 is a flow diagram for explaining the operation of an IC card according to an embodiment of the present invention. FIG. 2 is a flow diagram for explaining the operation of an IC card processing device using an IC card according to an embodiment of the present invention. FIG. 3 is a schematic block diagram showing the electrical configuration of an IC card according to an embodiment of the present invention. 11 and 5 are RAM shown in FIG. 3.
FIG. Figure 6 shows an ECR that performs transaction processing using an IC card according to an embodiment of the present invention.
FIG. FIG. 7 is a diagram showing a door opening/closing control device that controls opening and closing of a door using an IC card according to an embodiment of the present invention. In the figure, 1 is an IC card, 2 is a CPU, 3 is an input/output board, 4 is a ROM, 5 is a RAM, 6 is a timer, and 7 is a backup power source. (2 other people) Figure 1 IC car 1 heavy duty operation 0-Figure 6 Figure 7vA

Claims (1)

[Scope of Claims] An IC card device that can be attached to and detached from a card reader, comprising a storage means for storing data, a timekeeping means for measuring the current time or date, and a data read command given through the card reader. a determination means for determining whether or not the current time or date measured by the timekeeping means is within a predetermined period; In response to the determination, the data stored in the storage means is permitted to be read by the card reader, and the determination means determines that the current time or date is outside the predetermined period. An IC card device comprising: a control means for controlling the reading of data stored in the storage means to the card reader in accordance with the above.