JPH0342761A - Data processor - Google Patents

Abstract

PURPOSE:To prohibit the use of the data processor by means of the others without permission while a key work is interrupted by constituting a data processor in such a way that a job cannot be resumed if a registered password is inputted when key input is resumed. CONSTITUTION:When a key is depressed, a keyboard control program 10 checks whether an inputted key code is an input invalid instruction key 24 or not. When it is an invalid code, key input is made invalid and a processing is terminated. When it is not invalid, the keyboard control program 10 executes a password input processing and decides whether the inputted password is equal to that which is previously registered in an area 15. When it is not equal, a processing is terminated without executing anything. When it is equal, a key input valid means 12 turns off a key input invalid flag 31, makes subsequent key input from the keyboard 2 valid and terminates the processing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data processing equipment, and relates to a data processing apparatus including 1)- and 2)- one board.

[Conventional technology]

Conventionally, in this type of data processing device, the user performs work from the keyboard, temporarily interrupts the work from the keyboard without terminating the program, and resumes work from the keyboard after a certain period of time has elapsed. In this case, there was a risk that the data processing equipment could be used by a third party during the interruption of work.

[Problem to be solved by the invention]

With the conventional data processing device described above, there was a risk that the data processing device could be used by a third party while the user was interrupting work from the keyboard. If this happens, the state of the data in the program or file at the time the work was interrupted changes, causing problems in operation when the work is resumed.

Furthermore, when performing work that requires confidentiality, there is a drawback that there is a risk that confidential information may be referenced by others while the work is interrupted.

In view of the above-mentioned points, an object of the present invention is to prevent a third party from interfering with a third party during the interruption of work when the user temporarily interrupts work from the keyboard and resumes work from the keyboard after a certain period of time has elapsed. An object of the present invention is to provide a data processing device that can prohibit the use of.

[Means to solve the problem]

The data processing device of the present invention includes a keyboard provided with a key input invalidation instruction key and a key input validation instruction key, and when the key input invalidation instruction key is pressed, all key inputs other than the key input validation instruction key are provided. and an input disabling means for disabling the key input, and when the key input enable instruction key is pressed after the key input is disabled by the key input disabling means, a password can be input and the input password is registered in advance. and key input validating means for validating subsequent key inputs only when the password matches the password.

[Effect]

In the data processing device of the present invention, the keyboard is provided with a manual input invalidation instruction key and a key input validation instruction key, and when the key input behavior instruction key is pressed, the key input invalidation means is activated by all keys other than the key input validation instruction key. The input password is enabled when the key input enable means disables the key input by the key input disable means and the key person silkworm effect instruction button 1-1 is pressed. The subsequent key input is valid only if it matches the password registered.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a data processing device according to an embodiment of the present invention. The main parts of the data processing apparatus of this embodiment include a data processing apparatus main body 1 and a keyboard 2.

The data processing device main body 1 is equipped with a keyboard control program 10 including a key input invalidating means 11 and a key input validating means 12.

The keyboard 1-2 includes a data key section 21 for inputting normal data such as alpha characters, numbers, and kana, a numeric key section 22 for inputting numerical data such as numbers and decimal points, and an operating system or In addition to the function key unit 23 for inputting function keys defined in each program, a key input invalidation instruction key 24 is pressed when interrupting or resuming work from the keychain 2 in the data processing device of this embodiment. and a key input valid indicator 2F-25.

Referring to FIG. 2, a part of the work area used by the keyboard control program 10 includes a control flag 13,
A FIF○14 and a password area 15 are provided.

The FIFO I 4 is a first-in-first-out space for sequentially storing data keys input from the keyboard 2 .

The password area 15 is an area for storing a password registered by the user of the data processing device at the time of starting use.

Referring to FIG. 3, the control flag 13 is composed of eight various flags 31 to 38, one of which is the key input invalid flag 31. The key input invalid flag 31 indicates that key input from the keyboard 2 is invalid when it is on, and indicates that key input from the keyboard 2 is valid when it is off.

Referring to FIG. 4, among the processing in the keyboard control program 10, the interrupt processing for a hardware interrupt that occurs when a key on the keyboard 2 is pressed is, in particular,
Input key code collection step 41, key input invalid instruction key determination step 42, key input valid instruction key determination step 43, key input invalid flag on determination step 44, function key determination step 45, and key code FIFO storage step 46, a key input invalidation flag on step 47, each function key processing step 48, a password input processing step 49, a registered password comparison step 50, and a key input invalidation flag off step 51.

Next, the operation of the data processing apparatus of this embodiment configured as described above will be explained.

When a key is pressed on the keyboard 2, a hardware interrupt occurs, and the to-port control program 10 of the data processing device main body 1 takes over the key coat of the pressed key (step 41) and executes the input key. It is determined whether the code is the key code of the key input invalidation instruction key 24 (step 42). If the input key code 'is the key code of the key input invalidation instruction key 24, the keyboard control program 10 turns on the key input invalidation flag 31 by the key input invalidation means 11, and the subsequent keyboard 2
The key input from is invalidated (step 47), and the process ends.

In step 42, if the input key code is not the ;1-1 code of the key input invalidation instruction key 24, the keyboard control program 10 determines whether the input key code is the key code of the key input validation instruction key 25. Step 43).

The input key code is -1-1 input right direction = 1'-
If it's not -25, then the keyboard 'control' wholesale progera J...
10, it is determined whether the key input electric flag 31 is on or not (step 44), and the key input invalid flag 31
If it is on, the key input from the key fob 2 is invalid, so the process ends without doing anything.

In step 43, if the input key 2+-1 is the key code of the key input valid instruction key 25, the keyboard control program 10 performs password input processing (step 49), and the input password is applied to the password area 15.
It is determined whether the password is equal to the registered password (Step 50), and if they are not equal, the process is terminated without doing anything, and if they are equal, the key input invalid flag 31 is turned off by the key input valid means 12, and the subsequent keyboard 2 Activates the key input from step 51 (step 51) and ends the process.

If the 4-1 input invalid flag 31 is not on in step 44, the key input from the keyboard 2 is valid, so
Keyhode III? The wholesale program 10 determines whether the input key code is the key code of a function key (step 45), function-1.
- If the key code is one, each function key is processed (step 48), and the process ends.

In step 45, if the input key code is not the function key key code 1, the keyboard control program 10 stores the input key code in the FIFO 14 (step 46), and ends the process.

〔Effect of the invention〕

As explained above, the present invention provides a key input disable instruction key and a key input enable instruction key on the keyboard, and when restarting work from the keyboard, the work cannot be performed unless a pre-registered password is entered. By making it impossible to resume work from the keyboard, it is possible to prohibit others from using the data processing device without permission while work from the keyboard is interrupted. This has the effect of reliably preventing the inability to maintain the

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a data processing device according to an embodiment of the present invention, FIG. 2 is a diagram showing the contents of a part of the work area used by the keyboard control program in FIG. 1, and FIG. The figure shows a more detailed configuration of the control flags in Figure 2, and Figure 4 shows an interrupt for a hardware interrupt that occurs when a key on the keyboard is pressed, which is part of the processing in the keyboard control program in Figure 1. It is a flow chart showing processing. In the figure, 1... Data processing device body, 2... Keyboard, 10... Keyboard control program, 11... Key input invalidating means, 12... Key input validating means, 13... Control flag, 14... FIFo. 15...Password area, 21...Part of data key, 22...Part of number key, 23...Function number +=-S. 24...Key input invalidation instruction key 25...Key input validation instruction key 31...Key input invalidation flag, 32-38.Other various flags.

Claims (1)

[Scope of Claims] A keyboard provided with a key input invalidation instruction key and a key input validation instruction key, and a keyboard that disables all key inputs other than the key input validation instruction key when the key input invalidation instruction key is pressed. and a key input disabling means that enables a password to be input when the key input enable instruction key is pressed after the key input is disabled by the key input disabling means, and the input password is registered in advance. 1. A data processing device comprising: key input validating means for validating subsequent key inputs only when the key input matches a password.