JP3034374B2 - Portable IC card terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for inserting an IC card,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for reading and writing information stored in an IC card, and more particularly to a portable IC card terminal device capable of preventing unwanted destruction of an IC card.

[0002]

2. Description of the Related Art Conventionally, as this type of apparatus, there is one disclosed in, for example, JP-A-62-43772.
The portable IC card terminal device includes a key input unit, a display unit, an interface unit with an IC card, a control unit, a storage unit, and a power supply unit.

In this portable IC card terminal device, when an IC card is inserted and a correct password is input from a key input unit, the balance information and the like stored in the IC card are read and displayed on a display unit. Therefore, the card owner himself can check the stored information in the IC card without going to the card issuer.

[0004]

However, in the device having the above structure, the IC card can be pulled out at any time. Therefore, when the IC card is in the operating state, the IC card itself is inadvertently pulled out. Alternatively, there is a problem that the stored information in the card is destroyed and the IC card becomes unusable.

[0005] Even if it is not inadvertently pulled out,
If the control unit of the portable IC card terminal device goes out of control due to noise, program error, or the like, the IC card in the operating state must be pulled out.
There was a risk that the C card could not be used.

The present invention relates to an IC card in an operating state when the control unit of a portable IC card terminal device runs away due to inadvertent removal of the IC card in the above-described IC card operating state or noise or program error. In order to eliminate the problem that the IC card is destroyed and cannot be used due to unavoidable withdrawal, a lock operation member that makes the IC card unpullable and a lock that switches in conjunction with the lock operation member An object of the present invention is to provide an excellent portable IC card terminal device that does not accidentally destroy an IC card by providing a release switch and a reset switch.

[0007]

According to the present invention, there is provided an IC card insertion section, a data input key input section, a data display section, a display drive section, and at least a reset section. A portable type including an interface unit and a connection terminal for supplying a signal, a power supply, and a clock to an IC card, a control unit for controlling the whole, a storage unit including a control program, and a power supply unit for supplying power to the above units. I
In the C card terminal device, a lock operation member for preventing removal of an inserted IC card during operation, a first switch and a second switch that operate in conjunction with the lock operation member
Wherein the second switch and the first switch are arranged in the order of pushing the lock operation member, and a reset signal is supplied to the IC card and a clock supply is stopped by the switch operation of the first switch. Means for deactivating power supply stop, and means for supplying a reset signal to the connection terminal by a switch operation of the second switch to stop the operation of the IC card. When releasing the impossible lock state, the first
Is performed prior to the switching operation of the second switch.

[0008]

According to the present invention, as described above, in the portable IC card terminal device, the lock operation member for preventing the IC card from being taken out, and the first and the second switching devices which operate in conjunction with the lock operation member. 2 switch is provided, and the first switch is arranged so as to perform a switch operation prior to the second switch when the lock operation member is released.
The switch generates a trigger signal for deactivating the IC card and turning off the power of the device terminal to the control unit by the switch operation, and the second switch operates similarly to the first switch by releasing the lock operation member. Switch operates, IC
Give a reset signal to the card.

Therefore, destruction of the IC card due to inadvertent removal of the IC card during operation and destruction of data in the IC card can be prevented.

Further, it is possible to prevent the IC card from being destroyed due to insertion / removal of the IC card when the portable IC card terminal goes out of control due to noise, program error or the like.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a portable IC showing one embodiment of the present invention.
FIG. 2 is a block diagram of the card terminal device, FIG. 2 is an external perspective view of the portable IC card terminal device, and FIG. 3 is a sectional view of the portable IC card terminal device.

As shown in FIG. 2, a portable IC card terminal device 1 has a key input unit 2 for performing data input and various operations on its surface, a display unit 3 made of a liquid crystal or the like for display, and
A card insertion slot 4 for inserting an IC card, a slider claw 5 for taking out the IC card, and a lock operation member 6 for preventing the IC card from being pulled out are provided.

As shown in FIG. 1, a control section 7 for the entire portable IC card terminal 1, a display drive section 8 for generating a display signal to the display section 3, a control program and the like are stored therein. ROM 9 for storing various kinds of data.
The AM 10, a key control unit 11 that controls data from the key input unit 2, and an interface unit 13 that outputs signals such as a clock, Vcc, and reset to the IC card to a connection terminal 12 are connected by a bus line 14. And
A power supply unit 15 such as a battery supplies power to each unit.

Also, three switches, such as micro switches, are provided. One is a card presence / absence switch 16 for determining the presence / absence of an IC card, and the other two are switches for switching in conjunction with the lock operation member 6. Lock O
An N / OFF switch 17 (a first switch) and a reset switch 18 (a second switch), and a CDIN signal T1 from the card presence / absence switch 16 and a lock ON / OFF
The Lock signal T2 from the OFF switch 17 enters the NOR gate 19, and the output signal I
The NT signal T3 is connected to the control unit 7 .

On the other hand, the CDR from the reset switch 18
The ST signal T4 receives the reset signal T5 from the interface unit 13 and another NOR gate 21 together with the signal T6 passed through the inverter gate 20, and its output (RST signal) T7 is used as a reset signal of the IC card as a connection terminal. 12 is connected.

As shown in FIG. 3, the structure of the lock operation member 6 is such that a U-shaped recess 22a is provided in a slider tray 22 on which an IC card is placed, and the lock operation member 6 passes through a card unit outer frame 23. When the lock operation member 6 is pushed in when the IC card is inserted, the lock operation member 6 passes through the lock operation member passage hole 23a and enters the U-shaped recess 22a.
When the slider claw 5 is moved, it does not move (is locked), and the IC card cannot be pulled out.

The reset switch 18 and the lock ON / OFF switch 17 are arranged so that the reset switch 18 and the lock ON / OFF switch 17 are turned on in the same order as the lock operation member 6 is pushed.

On the other hand, the card presence / absence switch 16 is mounted on the outer frame 23 of the card unit. When the IC card is inserted, the switch is turned on by the movement of the slider tray 22.

Next, the operation and functions of the portable IC card terminal device will be described.

First, from the normal insertion of an IC card,
A description will be given of a process of reading information from a card, and after the process is completed, until the card is removed.

With the lock operating member 6 pulled out,
When the C card is inserted from the card insertion slot 4, the slider tray 22 moves, the card presence / absence switch 16 is turned on, and the U-shaped recess 22a overlaps with the lock operation member passage hole 23a of the card unit outer frame 23. Stops, and the card insertion is completed.

Next, the lock operation member 6 is pushed in to lock the slider tray 22 so that the IC card cannot be pulled out.
The N / OFF switch 17 is turned on.

In this state, power can be turned on to the IC card for the first time. By operating the key input unit 2, the key control unit 11 notifies the control unit 7 of power-on through the bus line 14, and the control unit 7 transmits the power through the interface unit 13. Vcc supply, clock supply, SI / O Hi to connection terminal 12
gh, a reset release (RST signal T7 is High) is given, and the IC card is activated.

Next, by operating the key input unit 2 again, the control unit 7 reads out the stored data of the IC card, and instructs the display drive unit 8 to display the data on the display unit 3.

At this point, only the information reading process of the IC card has been described.
The operation is carried out.

When it is desired to take out the card after the processing is completed, the control unit 7 operates the key input unit 2 to instruct the IC card to perform the deactivation processing (reset signal Low, clock stop, SI / O signal Low, Vcc is stopped), the lock operation member 6 is pulled out, the lock ON / OFF switch 17 and the reset switch 18 are turned off in this order, and the slider claw 5 is pulled out to take out the IC card.

The reset switch 18 is in a reset state (RST signal T7) when the IC card is inserted / removed.
Is set to Low), and when the reset switch 18 is OFF, the reset is not released and remains in the reset state regardless of the reset signal T5 from the interface unit 13.

Card presence / absence switch 16 and lock ON / O
The FF switch 17 detects whether the IC card is inserted properly. When one of the two switches (16, 17) is turned off (a high level is output), the output of the NOR gate 19 is output. A certain INT signal T3 becomes Low level, and this is sensed or interrupted, so that the control unit 7 deactivates the IC card.

A specific example is shown in the flowchart of FIG. 4, and will be described later in detail.

The lock ON / OFF switch 17 has another purpose. When the lock operation member 6 is released in order to pull out the IC card during the operation of the IC card, the lock ON / OFF switch 17 is not used before the card is taken out by the slider claw 5. It has the role of performing activation processing. Card presence switch 16, lock ON / OFF switch 17, reset switch 18
The two switches are unnecessary when the normal operation and the control unit 7 are operating normally, but are necessary when the wrong operation and the control unit 7 run away.

The operation in the case where an erroneous operation or the control unit runs away will be described.

For example, if the lock operation member 6 is forgotten to be locked even if the IC card is inserted, the lock ON / OFF switch 17 is in the OFF state. Therefore, before starting the processing, the control unit 7 issues the low signal of the INT signal T3. 4 is entered, and it is determined in step S1 whether the IC card is being processed. Since the IC card has not been operated yet, the process proceeds to step S3, where the reset signal is set to low, and the clock is stopped (step S4). ), I / O line Low (step S5), and deactivation of Vcc stop (step S6) to end all the processing, and do not perform processing such as information reading of the IC card.

Next, the operation in the case where the IC card is accidentally pulled out during the operation of the IC card will be described.

When pulling out the IC card, it is necessary to pull out the lock operating member 6, otherwise the slider claw 5 does not move and the card cannot be pulled out. Then, when the lock operation member 6 is pulled out, the lock of the slider tray 22 is first released, and then the lock ON / OF is released.
The F switch 17 is turned off and the Lock signal T
2 becomes High level, and NOR gate 19 outputs I
The NT signal T3 goes low, and the control unit 7
The processing of the flowchart of FIG. 4 is performed.

If the IC card is not being processed, the deactivation process is performed in the same manner as when the lock operation member 6 is forgotten to be locked when inserted.

However, if the IC card is being processed, if it is immediately deactivated, the data in the card may be destroyed. Therefore, the process proceeds from step S1 to step S2 in the flowchart of FIG. After waiting for the completion of the command processing, the flow advances to step S3 to perform the deactivation processing. Next, the reset switch 18 is switched to the switch OF.
F, and the CDRST signal T4 becomes High level,
The RST signal T7 output from the NOR gate 21 is Low.
Fixed to the level, you can pull out the IC card for the first time.

In order to perform the above processing, lock O
The time from when the N / OFF switch 17 is turned off to when the reset switch 18 is turned off is longer than one command processing time of the IC card + deactivation processing time, so that the two switches (17 ,
It is desirable to arrange 18). However, in the case where data is not written to the IC card, such as reading data from the IC card, and only processing that does not cause data corruption even if the processing is interrupted is performed, Such a long time is not required, and there is no need to wait for one command processing time.

With the above configuration, even if the IC card is accidentally pulled out during the operation of the IC card, the IC card is not destroyed.

Next, the operation when the control unit 7 runs away will be described.

When the control unit 7 runs away, the reset signal T5 is output from the interface unit 13 to Hi before the IC card is inserted.
gh (operating state), Vcc and a clock are supplied, and the operation of the key input unit 2 for removing the card does not perform the deactivation process even if the IC card is deactivated. When the IC card is inserted / removed at these times, the IC card may be destroyed. However, if the portable IC card terminal device 1 of the present invention is used, insertion / removal of the IC card is impossible without releasing the lock operation member 6 even in the above case, and resetting is performed when inserting / removing the IC card. Since the switch 18 is always turned off,
The RST signal T7 for resetting the IC card becomes low through the NOR gate 21, and the IC card can be inserted / removed in the reset state. That is,
Since the operation is stopped in the reset state and the ejection is performed in the reset state even when the IC card is inserted and ejected, the possibility of breaking the IC card even if it is not deactivated is drastically reduced.

As described above, the present invention effectively prevents the IC card being pulled out during operation due to careless and erroneous operation, and the destruction of the IC card due to insertion / removal of the IC card when the control unit 7 runs away. Can be prevented.

The present invention is not limited to the above-described embodiment, and some modifications as described below are possible. (1) In the above-described embodiment, a card presence / absence switch 16, a lock ON / OFF switch 17, a reset switch When the three switches 18 are in the ON state, a Low signal is output, and
It is assumed that a High signal is output in the FF state, and NOR gates (19, 21) and an inverter gate 2 are used as gate means.
0 was used, but card presence switch 16 and lock ON
When at least one of the / OFF switch 17 is turned off, a trigger signal (IN
When the reset switch 18 is turned off and the signal (T5) from the interface unit 13 is in any state, a reset signal (T
If 7) is set to Low and reset state,
Anything is fine. For example, the NOR gate 19 need not be a gate means, but may have a circuit configuration using a resistor 26 and switches (16, 17) as shown in FIG.

(2) In the above embodiment, the card presence / absence switch 16 is provided, but this is not always necessary.
When this is provided, a method such as using the NOR gate 19 as an inverter gate is conceivable, but in this case, the lock ON / O
If the trigger signal (INT signal T3) for starting the deactivation process is given when the FF switch 17 is OFF,
anything is fine. However, if the card presence / absence switch 16 is not provided, it is impossible to detect improper card insertion, such as when the lock operation member 6 is pushed in without the slider tray 22 being pushed in. Therefore, it is desirable to provide the card presence / absence switch 16. .

(3) The structure of the lock operation member 6 and the arrangement of the lock ON / OFF switch 17 and the reset switch 18 are not limited to the above embodiment, and the lock of the lock operation member 6 makes it impossible to take out the card. ON / OF
Any configuration and arrangement may be used as long as the F switch 17 and the reset switch 18 are switched in conjunction with the lock operation member 6 and are turned off in the order of the lock ON / OFF switch 17 and the reset switch 18 at the time of unlocking.

For example, as an example other than the above embodiment, FIG.
By changing the thickness of the lock operation member 6 to a slide type, the lock rod 6a supported by the spring 6b can be moved to the depression 22 of the slider tray 22 as shown in FIG.
a, the lock ON / OFF switch 17 and the reset switch 18 may be configured to switch ON / OFF by sliding the lock operation member 6. According to this structure, the reset switch 18 is turned off.
After that, you can take out the IC card,
It is more certain.

(4) For all of the above embodiments, the lock ON / OFF switch 17 and the reset switch 18
Has been described as being turned off by releasing the lock, but the same operation may be performed by turning on the switch. However, in this case, the lock is released by the lock O
The N / OFF switch 17 must be turned on before the reset switch 18.

The present invention is not limited to the above-described embodiment, and various modifications are possible based on the gist of the present invention, and they are not excluded from the scope of the present invention.

[0049]

As described above in detail, according to the present invention, in a portable IC card terminal device which inserts an IC card and performs processing such as reading and writing of data in the card, removal of the IC card A lock operation member for disabling and a first functioning in cooperation with the lock operation member;
A second switch, a means for deactivating the IC card by the switch operation of the first switch, and a means for generating a reset signal to the IC card by the second switch operation; When releasing the lock state that cannot be removed, the switch operation of the first switch is performed before the switch operation of the second switch.
Since the, the destruction of data in the destruction of the IC card by the IC card withdrawal during operation inadvertent and the IC card can proof equipment.

Further, it is possible to prevent the IC card from being destroyed due to insertion / removal of the IC card when the portable IC card terminal goes out of control due to noise, program error or the like.

[Brief description of the drawings]

FIG. 1 is a block diagram of a portable IC card terminal device showing an embodiment of the present invention.

FIG. 2 is an external perspective view of a portable IC card terminal device showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a portable IC card terminal device showing an embodiment of the present invention.

FIG. 4 is an operation flowchart of a control unit of the portable IC card terminal device according to the embodiment of the present invention.

FIG. 5 is a diagram showing a modification of the switch circuit of the portable IC card terminal device according to the embodiment of the present invention.

FIG. 6 is a view showing a modification of the lock operation member of the portable IC card terminal device according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Portable IC card terminal device 2 Key input part 3 Display part 4 Card insertion slot 5 Slider claw 6 Lock operation member 7 Control part 8 Display drive part 9 ROM 10 RAM 11 Key control part 12 Connection terminal 13 Interface part 14 Bus line 15 Power supply unit 16 Card presence / absence switch 17 Lock ON / OFF switch (first switch) 18 Reset switch (second switch) 19, 21 NOR gate 20 Inverter gate 22 Slider tray 22a U-shaped depression 23 Card unit outer frame 23a Lock operation member passage hole 25 Case

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06K 17/00

Claims (2)

(57) [Claims] 1. An IC card insertion section, a data input key input section, a data display section, a display drive section,
An interface unit and a connection terminal for supplying at least a reset signal, a power supply, and a clock to the IC card;
Portable I / O having a control section for controlling the whole, a storage section containing a control program, and a power supply section for supplying power to the above sections
In the C card terminal device, (a) a lock operation member that disables removal of an inserted IC card during operation; and (b) a first switch and a second switch that operate in conjunction with the lock operation member. The second switch and the first switch are arranged in this order in a direction in which the lock operation member is pushed in. (C) IC operation is performed by the switch operation of the first switch.
Means for performing a deactivation process of supplying a reset signal, stopping clock supply, and stopping power supply to the card; and (d) supplying a reset signal to the connection terminal by a switch operation of the second switch to operate the IC card. (E) when releasing the locked state in which the IC card cannot be removed, the switch operation of the first switch is performed in accordance with the pull-out of the lock operation member. A portable IC card terminal device which is performed prior to an operation. A third switch for detecting whether or not an IC card is inserted; and a means for performing the activation processing is provided when at least one of the first switch and the third switch is switched. 2. The portable IC card terminal device according to claim 1, wherein the activation process is performed.