JPS63317392A - Ic card - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] E Industrial field of application J This invention is applicable to integrated C1rcu
it j (hereinafter referred to as IC) IC with built-in chip metal
It's about cards.

[Prior Art] In recent years, IC cards have attracted much attention as next-generation cards, and various research and developments regarding software, hardware, peripheral devices, etc. are being actively carried out with the aim of putting them into practical use in various fields. This is because IC cards meet the basic requirements for next-generation cards, and in addition to having large memo capacity compared to the currently widely used magnetic cards, they also have the ability to be used as intelligent cards. This is because it has multi-4+1 functionality and high safety, which are its most distinctive features, and are the reason for its superiority. Taking advantage of these features, IC cards are being applied in some fields, although they are still in the trial stage, and their future potential is being explored.

Now, Figure 3 is a diagram showing a conventional industrial C card. In the figure, (1) is an IC card, (2) is a plate-shaped card made of Gufstick, and (3) is this card (2). This is a power supply section that is disposed on the main surface and is composed of solar cells etc. and supplies all the power. (4) is embedded in the above card (2) and has an identification function, a data storage device, and a processing function.
The BJi section consists of IC chips including a microprocessor chip and a memory chip.

(5) The power supply unit (3) above for the V-engine and the 1D power supply unit (4) for the above-mentioned
The power supply wiring (6) is placed on the edge of the main surface of the negative side of the card (2) and is electrically connected to the outside using a connector etc. The terminal (7) is used to transfer electricity 1d to and from this terminal (6).
This is a signal wiring that electrically connects the opening 5j and the spoon portion (4) using a pattern made of a copper-based material or the like. The above power supply wiring (5
) is a distribution Pi (5a) (5b
), one of them is the ground wire (5b)9, and
The signal wiring (7) includes four of the terminals (6) (6a)
It is composed of four wires (7a), (7b), (7c), and (7d) connected to (6b), (6c, and 6d), respectively.

By the way, an IC card configured as above (1)
is operated as follows. That is, first, the above IC card (1) is connected to a reader terminal device (hereinafter referred to as a reader terminal) or a reader/device which is a dedicated interface device.
When it is set in a writer terminal device (hereinafter referred to as a reader/writer terminal) and the terminal (6) is fitted into, for example, the terminal of the reader terminal and electrically connected, light emitted from the light emitting device included in the reader terminal The power source section (3) is irradiated with light, and a predetermined voltage is applied to the aQ processing section (4) via the power source wiring (5).

Next, the activated IC card (1) is checked to see if the cardholder is a legitimate person. ) to send.

This information is transmitted as an electrical signal from the reader terminal through the terminals (6), for example (6a) and (6b), to the No. 15 processing section (4) of the IC card (1). Then, the microprocessor connects the above terminals (6a) (6b)
The PIN number 9 of the signal input from the PIN is compared with the PIN number recorded in advance in the memory. If these two match, the cardholder is recognized as legitimate, and the identity verification ends. However, if you send the interrupted PIN 9 a predetermined number of times, the IC card (1) will automatically become blank for security reasons.Next, the validity of the IC card (1) itself will be checked. This means that the information recorded in another chain of the memory of the IC card (1) is transmitted to the reader terminal via the terminal (6),
A series of verifications are performed in sequence, and after the prescribed check procedure is completed,
For the first time, it becomes possible to use it for its intended purpose.

Note that the transmission and reception of signals between the IC card (1) and the reader terminal via the terminal (6) not only involves reading data from the memory in the signal processing section, but also erasing and rewriting data as the case may be. will be held.

[Problem to be Solved by the Invention 1] Conventional IC cards are configured as described above, and are communicated with the outside by electrical signals through terminals (6) such as mechanical contacts, such as connectors, so they are susceptible to changes over time. Due to the high degree of use, surface properties such as oxidation are reduced, or conversely, contact parts tend to wear out, resulting in poor contact. For this reason, when the signal is transferred, the E number check a, (the N number is not sent and the C card (1) is inadvertently closed), the signal is sent from the external source. I received a different error number 1d from the engineering C card (1) IAI)
Or, when erasing or rewriting the ground that was recorded in the memory, the transmission and reception of '1a etc. became unstable and the work was hindered.There were many problems in that it was easy to cause malfunctions.

This invention was made to solve the above-mentioned problems, and eliminates the factors that tend to cause poor contact.
C. The purpose is to obtain an IC card that operates with high reliability.

[Means for solving the problem] The IC card according to the present invention has an IC chip having a data storage function and a data processing function built in a plate-like insulator,
This C-chip has a structure in which a signal input section into which external information is input via optical communication and a signal output section from which information is output to the outside via optical communication are connected via electrical communication. It has been done.

C Effect" Since the signal input section and the signal output section of the present invention input and output information to and from the outside via optical communication, communication means with the outside using mechanical contact, which is likely to cause malfunctions, can be avoided, and It has a function to send and receive signals easily.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a perspective view showing an embodiment of the present invention. In the figure, (10) is an IC card with a built-in IC chip, etc.
(11) is a card made of an insulator such as a plate-shaped Buchstick, and (12) is a solar cell.
) is arranged on the main table near the left side of the above IC card (
This is the power supply section that serves as the power source for step 1). (13) is buried near the lower right side of the card (11), and has an identification function and a tag.
A signal processing section consisting of an IC chip that has a memory function, a processing function, etc., and inputs and outputs electrical signals.This IC chip is composed of, for example, a microprocessor chip and a memory chip. There is. (14) is approximately the number of light-receiving elements such as photodiodes on the main surface of the card (11) in the center, and information is input from the outside in the form of optical signals.
Then, the information is converted into an electric signal by the signal processing section 18 (1
3), the borrow input section to be outputted to (15) is the above card (
11) consists of a light emitting element such as a light emitting diode near the upper right side of n1. When information is input as an electric signal from the signal processing section (13), the information is outputted to the outside as light 1d53. Ruru @ (16) and (17) are such that the signal processing section (13), the trust input section (14), the signal processing section (13), and the slight output section (15) are made of copper-based material. i on the input side electrically connected with a pattern etc.
t 5j wiring and output side signal wiring, this input side signal wiring (16a) (16b) (16c) Q6d
) are the input parts (14a) (14b) (14a) (14b) (
14c) (14d) is connected correspondingly. (1
8) is a power supply wiring for electrically connecting the power supply section (12), the signal processing section (13), and the signal output section (15) with a pattern made of a copper-based material, each consisting of two wires; One of the wires is the ground wire (18c).

By the way, the IC card (IO) configured as above
is operated as follows. That is, when the engineering C card (10) is set in an external dedicated interface device, for example, a reader terminal, a predetermined amount of light is irradiated onto the power supply section (12) from a light projector included in the reader terminal.
L, power supply wiring (18b) (18c) to the signal processing unit (13) via the power supply wiring (18a) (18c);
A predetermined voltage δ is applied to the signal output n (15) through the respective signals. Next, the information that should be input from the signal light irradiation unit of the reader terminal is inputted as light number 1B depending on whether or not light is irradiated, to the signal input unit (14) of the above-mentioned industrial C card (lO) that is in the operating state. Then, the signal input section (1
4) Now outputs that information as an electrical signal,
The signal processing unit (1) is connected to the signal processing unit (1
3). In this case, information is input by the optical signal to the signal input section (14a), which is composed of four pieces (
14b) (14c) If (14d) is associated with 111 when light is emitted from the reader terminal and 10# when no light is emitted, 1d of 16
You can get the number. The signal processing section (13) is programmed in advance to execute processing corresponding to these colors, and after performing the predetermined processing, the signal processing section (13) is output from. Then,
Information is transferred to the signal output section (15) via the signal wiring (17) on the output side, and the signal output section (15) outputs this information to the reader terminal in the form of an optical signal.

Here, some specific examples of the contents of information transmission and reception performed between the IC card (10) and the reader terminal are shown. As shown in the flow shown in FIG. Signal input section (14) of the above IC card (10)
For example, light is irradiated only on (14a), and "l, 0
．． 0. 100 of "O" is transmitted to the signal processing section (13).

If this signal is, for example, the PIN number 53 (personal identification number) of the owner of the IC card (IO), then
A microprocessor included in the credit card processing i (13) of the card (10) verifies the above-mentioned PIN number. If the two match, the owner of the IC card (1o) is recognized as legitimate, and the process ends. However, if the temporary PIN is entered a predetermined number of times, for example three times, the above I
The C card (10) will be automatically closed as a security measure. Next, we move on to checking the validity of the IC card itself, which is based on the attribute information recorded in the memory area of the signal processing unit (13) in the upstream card (10). For example, a branch number, etc. is read out and a predetermined number of 1d is displayed on the above-mentioned call output section (15).

When the reader terminal receives this, the microprocessor included in the reader terminal generates a random number and transfers it to the IC card (10), and so on. Only after signals are exchanged with the reader terminal and predetermined checks are completed, the open Suzaka containing various data is released and can be used for the intended purpose.

As described above, according to one embodiment of the present invention, information is input from the outside as an optical signal to the signal input section (14), and is transmitted as an electric signal to the signal processing section (13),
After executing a predetermined process, the information is outputted by electric signal and sent to the signal output section (15), and the signal output section (15) outputs the information to the outside as an optical signal, so that the information is communicated with the outside. Since the transmission of our trust does not rely on mechanical contact communication methods that are prone to contact failures, it is not subject to deterioration over time or environmental influences, prevents malfunctions, and provides highly reliable operation. You will be killed.

In addition, in the description of the above embodiment, the trust processing g(5(
13) shows a double-chip type consisting of a microprocessor chip and a memory chip, but it is also possible to configure it with a blank monochip such as a microcomputer chip that integrates these functions. stomach. Also,
The input section (14) and the output section (15) are shown using a light receiving element such as a photodiode, and a light emitting element such as a light emitting diode, respectively, but are not limited to these. It may be configured with other photoelectric conversion elements having equivalent functions. In particular, the fd chi output section (1
5) is used as a display, and in addition to the above-mentioned optical elements, an element whose light intensity is proportionally liquefied, such as a liquid crystal element, may be used for display.

Furthermore, although the power supply unit (12) that supplies electricity to each of these parts is shown to be composed of a solar cell, even if it is a small battery, etc. Although it is arranged and configured on the main surface, it is not limited to the one in the above embodiment, and it is sufficient that the required number of eight is arranged in such a way that the necessary functions are not impaired. One part may be placed on the ground or buried at a predetermined position on the main surface of the card (11). Furthermore, these elements are made into laminated semicircular elements, and at least the above power supply part (
12), HIi1 input section (14), signal output section (15)
The same effect as above can be obtained even if the surface layer is formed so as to be capable of transmitting and receiving light.

[Effects of the Invention] As described above, according to the present invention, a signal input section is provided in which each IC chip built in a plate-shaped insulator is connected by an electric signal, and information is exchanged with the outside by an optical signal. Since the IC card is configured to include a signal output section and a signal output section, it is possible to obtain an IC card that can prevent malfunctions and operate with high reliability.

[Brief explanation of drawings]

FIG. 1 is a schematic R showing an embodiment of the industrial C card of the present invention.
The parent diagram, FIG. 2, is a partial operation explanatory diagram of the transmission and reception of signals with the outside of the device shown in FIG. 1, and FIG. 3 is a schematic perspective view showing the IC card at the end. In the figure, (lO) is an IC card, (11) is a card, (13) is a communication unit 53, (14) is a communication unit 9 input unit, (
15) is the signal output section, (16) is the signal wiring (input side),
(17) is the transmission line (output [)]. In the figures, the same reference numerals indicate the same or corresponding parts.

Claims (3)

[Claims] (1) An IC chip built into a plate-shaped insulator and having data storage and processing functions, and a signal input section into which information is inputted from the outside in the form of optical signals and communicated with the IC chip by electrical signals. , a signal output section that communicates with the IC chip by electric signals and outputs information to the outside in the form of optical signals.
C card. (2) The IC card according to claim 1, wherein the signal input section and the signal output section are provided on the same insulator as the IC chip. (3) The signal output section is a display device, and is configured to be displayed using a photoelectric conversion element such as a light emitting element or an element whose light intensity changes proportionally. or the IC card described in Section 2.