JPS62204995A - Portable electronic device - 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 [Object of the Invention] (Industrial Application Field) The present invention is applicable to non-volatile data memory and CPU
The present invention relates to a portable electronic device called an IC card, which has a built-in IC (integrated circuit) chip having a control element such as a U, and a keyboard on its surface.

(Prior Art) In recent years, as a new portable data storage device, an IC card having a built-in IC chip having a non-volatile data memory and a control element such as a CPU has been developed.

This type of IC card is electrically connected to a card reader/writer through a part of a contact 1 provided on its surface, and exchanges data with the card reader/writer.

By the way, recently, cards are equipped with keyboards on the surface.
It is being considered that by using the keyboard, data stored in the IC card can be referenced and rewritten even when the IC card is offline. I wonder if this offline access can always be done (, IC
By turning on the specific key provided on the surface of the card, that is, the command to turn on the control switch and performing offline processing, into the control element and activating the control element,
access is available for the first time.

However, since the control switch was installed near the center of the surface of the IC card, the control switch could be accidentally pressed when the IC card was bent, causing the I/O
There was a risk that the C card would be activated by mistake.

(Problems to be Solved by the Invention) As described above, for example, when the IC card is bent, the control switch is pressed by mistake, causing the IC card to be erroneously activated.

SUMMARY OF THE INVENTION Therefore, the present invention aims to eliminate the above-mentioned drawbacks, and aims to provide a portable electronic device that prevents the control switch from being pressed by mistake even when stress such as bending is applied, and prevents erroneous activation. do.

[Structure of the Invention] (Means for Solving the Problems) The portable electronic device of the present invention controls the control element to perform offline processing. A control switch for operating the portable electronic device is located at the edge of the surface of the portable electronic device.

(Function) In the edge portion near the periphery of the portable electronic device, the portable electronic device undergoes minimal deformation in response to stress, so that the control switch is less likely to be pressed due to this deformation.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows I as an example of a portable electronic device according to the present invention.
This shows the appearance of the C card 1. That is, on the surface of the IC card 1, a contact section 2 for making electrical contact with a card reader/writer (not shown), a liquid crystal display section 3 for displaying data, and a keyboard 4 are installed, respectively. The key board 4 includes, for example, a numeric keypad 5, function keys 6, and an activation key 7 as a control switch. The activation key 7 is a switch for activating a control element to perform offline processing, and is installed at the edge of the surface of the IC card 1 as shown in the figure.

FIG. 2 shows the configuration of elements built into the IC card 1. As shown in FIG. In other words, 11 is III which controls the whole
Il element (for example, CPLI), 12 is a non-volatile data memory whose memory contents can be erased, 13 is a program memory, and 14 is a battery that supplies operating power to each part. The element 11, data memory 12, and program memory 13) are integrated into an IC chip. The data memory 12 is used to store various data, and is composed of, for example, an EEPROM. The program memory 13 is composed of a mask ROM, and stores a control program for the control element 11.

Therefore, when performing offline processing, the activation key 7 is pressed to issue a command to perform offline processing at t, I.
By inputting data to the f control element 11 and activating the control element 11, desired offline processing (
It is possible to refer to, rewrite, etc. the stored data.

In this way, by installing the activation key 7 at the edge of the surface of the IC card 1, even if the IC card 1 is bent, the stress will mainly deform the central part of the IC card 1, and the deformation of the edges will not. Since it is small, the control element 11 will not be erroneously activated due to the activation key 7 being pressed by mistake. In particular, it is possible to prevent the activation key 7 from being erroneously operated due to stress while carrying the IC card 1. Therefore, offline processing is possible only when intended, data stored in the IC card 1 is protected, and data reliability is also improved.

[Effects of the Invention] As detailed above, according to the present invention, it is possible to provide a portable electronic device that prevents the control switch from being pressed erroneously even if stress such as bending is applied, and prevents erroneous activation.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view showing the external appearance, and FIG. 2 is a block diagram showing the configuration of built-in elements. 1...IC card (portable electronic device), 2.
...Contact part, 3...Liquid crystal display part,
4...Keyboard, 5...Numeric keypad,
6...Function key, 7...Start key (control switch), 11...Controller element (CPU
), 12... Data memory, 13...
Program memory, 14...Battery. Applicant's agent Patent attorney Takehiko Suzue'; A1 Figure 2

Claims (3)

[Claims] (1) a data memory and a control element for reading and writing data to the data memory;
A card-shaped portable electronic device that selectively performs input/output from the outside and includes a control switch for activating the control element, and the control switch is located at the edge of the surface of the portable electronic device. A portable electronic device characterized in that it is installed in a part. (2) The portable electronic device according to claim 1, wherein the data memory is an erasable non-volatile memory. (3) The portable electronic device according to claim 1, wherein the control element is a CPU (central processing unit).