JPS63239092A - composite 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 FIELD OF INDUSTRIAL APPLICATION The present invention relates to a card-shaped storage medium that enables an identification function and personal management of data.

2. Description of the Related Art A conventional IC card has a structure as shown in FIG. 4, for example. In FIG. 4, 8 is an IC card, and 2 is an electrode of an IC module (not shown). The IC module is composed of a microcomputer and memory. The operation of the IC card configured as described above will be explained below. The terminal device (not shown) and the IC card 8 are
Communication is carried out through the electrodes 2 of the module, but first the terminal sends P X N (Personal td
The microcomputer in the XC card 8 compares the contents with the built-in PIN, and only when they match can the terminal device read and write the memory in the IC card 8. Here, the PIN in the IC card 8 is used only within the IC card 8 to check against the PIN from the terminal, and cannot be read externally, so it is a storage card with much higher confidentiality than a magnetic card. Become.

On the other hand, the laser card has a configuration as shown in FIG. 6, for example. In FIG. 6, 9 is a laser card, and 4 is a laser beam recording film made of a thin metal film, which is laminated on the laser card 9. In FIG. The operation of the laser card 9 configured as described above will be explained below. X the laser card 9 and laser optical head (6 in Figure 2)
, move it in the Y-axis direction, search the laser beam recording film 4 and irradiate it with the laser beam 7, for example, record 1 and 0 with or without making a hole, and for reading, irradiate the laser beam 7, 1.0 is determined based on the intensity of the reflected light. Since the laser beam is focused finely, the holes can be made small and the intervals can be narrowed, so a card-sized storage capacity of about 2 Mbytes can be recorded, making it an advantageous storage card for storing large amounts of data.

Problems to be Solved by the Invention Conventional cards such as IC cards have high confidentiality but have low memory capacity, and laser cards have
Although they have a large memory capacity, they have the problem of low confidentiality, which limits their uses. The present invention has been made in view of these points, and has a simple configuration, high confidentiality, and
The purpose is to provide a storage card with a large memory capacity.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides an I.
The IC module is equipped with a C module and a laser beam recording film, and is configured such that the surface of the electric signal extraction terminal of the IC module and the surface of the laser beam recording film are opposite to each other.

Effect of the present invention With the above-described configuration, one card can have the functions of an IC card and a memory card.
This makes it a highly confidential and large-capacity storage card.

EXAMPLE FIG. 1 shows a composite card of the present invention. In Figure 1,
1 is the composite card, 2 is the electrode of the IC module, and 3 is the IC
Module 4 is a laser beam recording film.

The methods of writing and reading data to and from the IC module 3 and the laser beam recording film 4 are the same as in the conventional example. Figure 2 shows the mechanism for transmitting and receiving signals. Signals from the IC module 3 are transmitted through the IC module terminal 6, and signals from the laser beam recording film 4 are transmitted by the laser beam 7 emitted from the laser optical head 6.

Since the laser optical head 6 moves in at least one direction of the X and Y axes, the surface of the electrode 2 of the IC module is adjusted so that it does not intersect with the IC module terminal 5 and so that the surface of the laser beam recording film 4 can be enlarged. The surfaces of the laser beam recording film 4 were configured to be different surfaces of one card.

In the composite card of this embodiment, one card can be used as two cards for different purposes, including three IC modules and four laser beam recording films. Further, even for a single application, highly confidential data and non-confidential data can be separated, and highly confidential data can be stored in the IC module 3 and non-confidential data can be stored in the laser beam recording film 4.

Furthermore, by providing the IC module 3 with an encryption key and an encryption function and recording the encrypted data on the laser beam recording film 4, highly confidential and large-capacity recording becomes possible. The third example will be described in more detail. Figure 3 shows the data flow. Data from the terminal device 10 is input into the IC module 3 through a composite card reader/writer. The data is encrypted in the IC module 3 using an encryption key and an encryption function, and once returned to the composite card reader/writer 11 or the terminal 10, it is recorded on the laser beam recording film 4. The reading of data from the laser beam recording film 4 is the reverse flow of the recording. For this function to work, the PIH verification of the IC module 3 must be completed, and if the PIN verification is not performed, even if the data on the laser beam recording film 4 can be read, the encryption key and encryption method will not be correct. Because I don't understand,
The true data is unknown and the data is highly confidential.

Effects of the Invention As described above, according to the present invention, it is possible to provide a card-shaped storage medium with an extremely simple structure, high confidentiality, and a large capacity, which is extremely useful.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a composite card according to an embodiment of the present invention, Fig. 2 is a diagram showing a mechanism for sending and receiving the same signal, Fig. 3 is a block diagram showing the flow of data from the terminal to the card, and Fig. 4 is a block diagram showing the flow of data from the terminal to the card. The figure shows a conventional IC card, and FIG. 6 shows a conventional laser card. 1... Composite card, 2... IC module electrode, 3... IC module, 4...
...Laser light recording film. Name of agent: Patent attorney Toshio Nakao and 1 other person/-
--Womb Card 2---211 sections δ of IC, Mo, and Kaure---IC module diagram 1

Claims (1)

[Claims] Equipped with a card IC module in which a microcomputer chip containing an electrically readable and writable memory is mounted on a printed circuit board having terminals for taking out electrical signals, and a laser light recording film that is written and read out using a laser light, A composite card, wherein the surface of the electrical signal extraction terminal of the IC module and the surface of the recording film are opposite to each other.