JPS6260076A - Reading and writing system for ic card - Google Patents

Abstract

PURPOSE:To eliminate adverse influence exerted owing to imperfection of connection between an IC card and a card terminal by providing the IC card itself with a function which outputs an oscillating wave and an input function for the oscillating wave. CONSTITUTION:When the IC card 11 is inserted into the card terminal 21, an acoustic wave transmitting part 27 transmits an ultrasonic wave signal. This signal is received by an acoustic wave receiving part 13 and supplied to a CPU 31 through a rectifying circuit 33. The CPU 31 transmits an ultrasonic wave obtained by its internal oscillation circuit through an acoustic wave transmitting part 14. This signal is received by the acoustic wave receiving part 28 on the side of the card terminal 21. When the energy level of this signal is higher than a specific level, a contact probe 26 is driven downward to make a connection with the connection terminal 12 of the card 11. Consequently, adverse influence due to imperfection of the connection between the IC card and card terminal is eliminated.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is used when connecting an IC card used as a cash card or credit card issued by a financial institution such as a bank to a card terminal thereof. The present invention relates to a read/write method for IC cards.

[Prior art and its problems] In recent years, it has been called the cashless era, and by using cards issued by credit card companies, it has become possible to purchase products without handling cash. . Conventionally, plastic cards, embossed cards, magnetic striped cards, and the like have been generally used as the above-mentioned cards, but these cards are easy to forge due to their structure, and unauthorized use has become a problem. In order to solve these problems, information cards, so-called IC cards, have recently been developed that incorporate an IC circuit that stores a PIN number, etc. into the card so that the PIN number cannot be read easily from the outside. . This IC card has the advantage that it is difficult to forge, has excellent confidentiality, and can store a large amount of information. However, when actually making a transaction using an IC card as mentioned above, it is necessary to use an IC installed at a bank or store.
An IC card is attached to a card terminal, and a personal identification number is entered to confirm the authenticity of the card and the card holder, and predetermined processing operations are performed.

Here, the connection method between the IC card and the IC card terminal is generally a connector type, that is, a contactor called a contact probe is connected from the card terminal side to a connection terminal formed flat on one side of the IC card. We have adopted a method of This allows information exchange processing between the card and the terminal.

However, the contact probe is configured to unconditionally start contacting the connection terminal of the card when the IC card is inserted into the card terminal. If there is a misalignment in the insertion position or if an IC card with a different product standard is inserted, l1fl may occur at the terminals on the card side, or noise may occur that may adversely affect each internal circuit. .

[Object of the invention 1 This invention was made in view of the above problems,
Provides an IC card read/write method that makes it possible to prevent negative effects on the card without connecting it to the IC card if the IC card specifications and connection terminal positions do not match the card terminal. The purpose is to

[Summary of the Invention] That is, the IC card read/write method according to the present invention provides the IC card itself with a function of outputting vibration waves, and also provides the card terminal with the function of inputting this vibration wave. The IC card is configured to connect the IC card and the card terminal by detecting that the energy has reached a predetermined energy level or higher.

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the external configuration of an IC card 11 using an IC card read/write method.
A connection terminal 12 is provided for electrically connecting to a card terminal installed at a bank or the like, for example.

Further, this IC card 11 is provided with a sonic wave receiving section 13 and a sonic wave transmitting section 14 for inputting and outputting an ultrasonic signal for IC card identification.

FIG. 2 shows a card terminal 21 into which the IC card 11 is inserted, and the card terminal 21 is provided with a keyboard 22, a display section 23, and a card insertion slot 24 on the top surface of its main body. Above keyboard 2
2 includes a PIN key 25 along with calculation keys such as a numeric keypad and function keys. This PIN key 2
5 is an IC card 11 for this card terminal 21;
When the IC card 11 is inserted into the card holder, when verifying the identity of the card holder, the PIN number PIN (PIN) of the card holder is entered.
personal identity
This password layer @PIN is a code with a predetermined number of characters arbitrarily set by the cardholder. Further, the IC card 11 is inserted into the card insertion slot 24 in the direction shown by arrow A, and electrical connection with the internal circuit of the card terminal 21 is established.

Figure 3 shows the card insertion slot 2 of the card terminal 21.
4, the upper part of the card insertion slot 24 includes the connection terminal 12 of the card 11, the sonic wave receiving section 13, and the sonic wave transmitting section when the IC card 11 is normally installed as shown in FIG. A contact probe 26, a sonic wave transmitter 27, and a sonic wave receiver 28 for card recognition are provided at positions corresponding to 14, respectively. The contact probe 26 moves downward as shown by arrow B to make contact with the connection terminal 12 of the IC card 11. In this case, in response to the ultrasonic signal transmitted from the sonic wave transmitter 27, Detecting that the ultrasonic signal having a predetermined energy level or higher is received by the acoustic wave receiving unit 28,
It is determined that the IC card 11 is installed in the normal position, and the contact operation with the C card 11 by the contact probe 26 is started.

Next, the circuit configuration of the IC card 11 will be explained with reference to FIG.

In the figure, 31 is a central processing unit, and a data memory 32 is connected to this processing unit 31. This data memory 32 is composed of, for example, an EEP-ROM, and is used for the Bii! verification check. Information such as iE number rPINJ, banking course number used during actual monetary transactions, and other information such as address 1 name, N
All kinds of personal information such as call numbers are stored, and a large amount of this information is read out by the processing device 31 as necessary when exchanging information with a card terminal (not shown). The central processing bag [31 is connected to the sound wave receiving section 13 shown in FIGS. 1 and 3 through a rectifier circuit 33, and is also connected to the sound wave transmitting section 14. The sonic wave receiving section 13 receives an ultrasonic signal transmitted from a sonic wave transmitting section 27 provided on the card terminal 21 side, and the vibration wave energy of the ultrasonic signal inputted by this receiving section 13 is rectified. It is converted into electrical energy via the circuit 33 and supplied to the central processing unit 31 as an operating N source. This central processing unit 31 receives the operation l! supplied from the rectifier circuit 33. The ultrasonic signal obtained by its internal oscillation circuit is transmitted and outputted as a card identification signal via the transmitter 14, and the ultrasonic signal output from the transmitter 14 is transmitted to the card terminal 21. The sound waves are received and input by a sound wave receiving unit 28 provided on the side. On the other hand, internal processing information by the central processing unit 31 is exchanged with the card terminal 21 via the interface section 34 and the connection terminal If"12 as necessary.

Next, the circuit configuration of the card terminal 21 will be explained with reference to FIG.

In the figure, reference numeral 31 denotes a central PfI4 arithmetic processing device, and to this processing device 31 are connected an input control section 42 that controls the keyboard 22 and a display control section 43 that performs tiII tllll of the display section 23. The central processing unit 41 also includes a sound wave transmitter 27 and a sound wave receiver 2 provided in the card insertion slot 24 in FIG.
8 is connected, the ultrasonic signal obtained by the oscillation circuit in the processing device 41 is transmitted via the sonic wave transmitter 27, and the ultrasonic signal received via the sonic wave receiver 28 is , the signal energy level is determined within the processing device 41. In this case, the central processing bag [4
1 detects that the energy level of the ultrasonic signal input via the sound wave receiving section 28 has reached a predetermined energy level or higher, and based on the detection result that the energy level has reached the predetermined energy level or higher, the connection head An IC card contact signal is supplied to the driving section 44. The connection head drive unit 44 mechanically lowers the contact door 0-726 in response to an IC card contact signal supplied from the central processing unit 41.

Here, the predetermined energy level set by the central processing unit 41 is, for example, the energy level of the card terminal 2.
When the IC card 11 is properly inserted into the card insertion slot 24 of the IC card 11, the ultrasonic signal transmitted at the lowest level from the sonic wave transmitter 14 of the IC card 11 is
This corresponds to the input energy level when input to the sound wave receiving section 28 of the card terminal 21.

On the other hand, after the contact probe 26 contacts the IC card, internal processing information by the central processing unit 41 is exchanged with the IC card 11 via the interface section 45 and the contact probe 26.

Next, the connection operation between the IC card 11 configured using the IC card read/write method as described above and the card terminal 21 will be described.

First, for example, when a cardholder uses the IC card 11 as a cash card and withdraws a deposit using the card terminal 21 installed at a bank, the cardholder first transfers the IC card 11 to the card terminal 21.
1 into the card insertion slot 24. Here, the insertion of the IC card 11 into the card insertion slot 24 is detected by a micro switch (not shown) on the card terminal 21 side, and the card terminal 21 transmits a sound wave at the same time as detecting the insertion of the IC card 11. The ultrasonic signal is transmitted via the section 27. This card terminal 21
The ultrasonic signal from the sonic wave transmitter 27 on the side is received by the sonic wave receiver 13 on the IC card 11 side, as shown in FIG. The received ultrasonic signal is converted into electrical energy via the rectifier circuit 33, and the central processing unit 31 is used as an operating power source.
is supplied to Then, this processing device 131 transmits the ultrasonic signal obtained by its internal oscillation circuit as a card identification signal via the sonic wave transmitter 14.
The ultrasonic signal for card identification from the C card 11 is received by the sonic wave receiving section 28 on the card terminal 21 side, and is input to the central processing unit [41].

Here, the processing device 41 determines whether the energy level of the ultrasonic signal inputted via the sonic wave receiving section 28 has reached a predetermined energy level or higher. When the insertion position of the IC card 11 reaches the normal card insertion position, the connection between each transmitting and receiving unit 27→
13. When the transmission and reception of the ultrasonic signals from 14 to 28 becomes good, the energy level of the ultrasonic signals input from the IC card 11 to the terminal 21 reaches a predetermined energy level or higher, and the central processing unit 41 supplies an IC card contact signal to the connection head drive section 44. As a result, the contact probe 26 in the card insertion slot 24 moves downward, and electrical connection with the connection terminal 12 of the IC card 11 is established. As a result, for example, the PIN number P before proceeding to the actual deposit transaction can be changed.
Card 11 handles information exchange processing such as identity verification using IN.
→It will start between terminal 21.

Therefore, for example, the IC card 11 is inserted into the card insertion slot 24.
If the IC card is not securely inserted into the IC card, or if the IC card itself has a different standard, an ultrasonic signal of a predetermined energy level or higher will not be input to the sonic wave receiver 28 on the card terminal 21 side. Therefore, the contact probe 26 does not proceed to the operation of connecting with the IC card 11, and it is possible to prevent adverse effects caused by connection defects.

[Effects of the Invention] As described above, according to the present invention, the IC card itself has the function of outputting vibration waves, and the card terminal has the function of inputting the vibration waves, so that the input vibration wave energy can be adjusted to a predetermined level. Since the configuration is configured to detect when the energy level has been reached or higher and connect the IC card to the card terminal, if the standard of the IC card and the connection terminal position do not match the card terminal, the IC card and the card terminal will be connected. It is possible to prevent adverse effects on the card without performing any connection. This allows I
It becomes possible to further improve the reliability of data exchange between the C card and the card terminal.

[Brief explanation of the drawing]

FIG. 1 is an external configuration diagram showing an IC card constructed using an IC card read/write method according to an embodiment of the present invention, and FIG. 2 is a card constructed using the above IC card read/write method. External configuration diagram showing the terminal,
3 is a sectional view showing the internal structure of the card insertion slot of the card terminal shown in FIG. 2, FIG. 4 is a block diagram showing the internal circuit of the IC card in FIG. 1, and FIG.
The figure is a block configuration diagram showing the internal circuit of the card terminal in FIG. 2 above. 11...IC card, 12...connection terminal, 14...
・Card side sound wave transmitter, 21... card terminal,
24...Card insertion slot, 26...Contact probe, 28...Terminal side sound wave receiving section, 31...Card side central processing unit, 41...Terminal side center? II arithmetic processing unit, 44... connection head drive unit. Figure 4

Claims (1)

[Claims] In an IC card read/write system consisting of an IC card and a card terminal into which this IC card is installed,
A vibration wave output means provided in the IC card and outputting a vibration wave; a vibration wave input means inputting the vibration wave outputted from the IC card by the vibration wave output means into the card terminal; and a vibration wave input means. energy level detection means for detecting that the energy level of the vibration wave energy inputted by the vibration wave energy has reached a predetermined energy level or higher;
An IC card lead comprising means for connecting the IC card and a card terminal when the energy level detection means detects that the input vibration wave energy has reached a predetermined energy level or higher. Light method.