JPH06149437A - Key data processing system - Google Patents

Abstract

PURPOSE:To prevent erroneous switching to a non-public mode at a terminal. CONSTITUTION:In the base of switching to the non-public mode, key data from a keyboard 4 are stored in a memory 3 inside a system device 1. A microprocessor 2 inside the system device 1 judges whether specified plural keys are pressed in the decided order or not and whether the specified plural keys are simultaneously pressed or not concerning the stored data and in the case of OK, switching to the non-public mode is performed. In the case of deciding the specified plural keys, the plural keys are decided so as not to be unexpectedly pressed at the same time in the order. Thus, the unexpected switching to the non-public mode due to a user can be decreased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal equipped with a switch to a non-disclosure mode.

[0002]

2. Description of the Related Art In a conventional terminal, for example, a method for switching to a system setup work mode is to display on a screen that a predetermined function key is pressed within a specific time after power-on. ing. In other conventional terminals, this is judged by simultaneously pressing a plurality of keys, and the mode is switched to the non-disclosure mode. For example, JP-A-3
As disclosed in Japanese Patent No. 233624, there is one that activates the hidden function only when the escape key is continuously pressed for a predetermined time or longer.

[0003]

In the above-mentioned example, the hidden function may be activated by accidentally putting a hand, an elbow or the like on it and determining that the button has been pressed for a predetermined time or longer. Also, if you use only the function keys, you will enter a mode other than the normal mode due to a mistake in operation. If you press only multiple keys at the same time, a small keyboard may malfunction and enter private mode by placing your hands, elbows, etc. on the keyboard. An object of the present invention is to prevent accidental entry into the private mode.

[0004]

SUMMARY OF THE INVENTION The present invention comprises a system unit and a keyboard. The system unit comprises a microprocessor for judging key data received from the keyboard and a memory for storing the key data. , The keyboard is a keyboard that has a function to send the pressed or released information together with the type of key data (key code) to the system unit when the key is pressed or released. When the key is pressed or released from the keyboard, the order is The data is stored in the memory in the system unit, and the data is read by the microprocessor in the system unit, and it is determined whether or not the key is continuously pressed depending on the order of the pressed keys and the key code, and the presence or absence of the key release information. By being able to judge, it is possible to confirm that a specific multiple key press order and multiple keys are pressed simultaneously. A key data processing method for switching to the private mode by determining the combined or not Luke.

[0005]

It is possible to prevent the user from accidentally finding a method for switching to the secret mode and causing the terminal to malfunction.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

Press the A key 7 from the keyboard 4 and continue to press it. Next, the B key 8 is pressed and kept pressed. Press the C key 9 and keep it pressed. Finally, by pressing the D key 10, data is stored in the memory 3 in the order of pressing the A key 7, pressing the B key 8, pressing the C key 9, pressing the D key 10 through the key data receiving circuit. . The data is read by the microprocessor 2, and the keys are pressed in the order of A key 7B key 8C key 9D key 10. Since there is no release data, the four keys are kept pressed in the determined order. Can judge. As a result, the microprocessor determines that they are pressed in the predetermined pressing order and simultaneously, and switches to the non-disclosure mode.

[0008]

As described above, according to the present invention, the user cannot easily find the private mode. Also, by combining the pressing order of a plurality of keys and the simultaneous pressing, it can be used, for example, for expanding an ATM personal identification number or expanding a telephone number.

[Brief description of drawings]

FIG. 1 is a diagram showing a system device (microprocessor and memory) and a keyboard of the present invention.

FIG. 2 is a diagram showing a key arrangement of the keyboard of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... System unit, 2 ... Microprocessor, 3 ... Memory, 4 ... Keyboard, 5 ... Key data receiving circuit, 6 ... Data line, 7 ... A key, 8 ... B key, 9 ... C key, 10 ... D key.

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Claims (1)

[Claims] 1. A system unit and a keyboard, wherein the system unit comprises a microprocessor for judging key data received from the keyboard and a memory for storing the key data. The keyboard is used for pressing and releasing the key. , A keyboard that has a function to send the press or release information to the system device together with the type of key data (key code). When the key is pressed or released from the keyboard, it is stored in the memory in the system device in that order. , The microprocessor in the system unit reads the data, and it is possible to judge whether or not the key is continuously pressed depending on the order and key code of the pressed keys, and the presence / absence of release information of the key. Judgment based on the pressing order of and whether multiple keys are pressed at the same time Key data processing system, characterized in that switching to the private mode by.