JPH03163618A - Keyboard control system - Google Patents

Abstract

PURPOSE:To obstruct a careless key input by depressing simultaneously plural keys determined in advance, and preventing the subsequent key input data from being communicated to an application software. CONSTITUTION:When a key of a keyboard input device 1 is depressed, the corresponding key code is informed to a keyboard control part 2 in a personal computer 4. The control part 2 assembles data by the key code, and informs it to an application software 3. In such a state, its notice is received by depressing plural keys simultaneously determined in advance in the board 1, and thereafter, key input data informed from the board is not informed to the high-order application program 3. Subsequently, when the key code for showing a fact that plural keys are depressed simultaneously is received again, the subsequent input data is informed to the program 3. In such a manner, even if the key input is depressed carelessly, the data can be prevented from being broken down.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a keyboard control method. [Prior art] Conventionally, when entering a keyboard, when you temporarily stop using the keyboard and leave your seat, you would have to call out to the person working next to you or leave a memo to prevent inadvertent key input. I needed to let others know so they wouldn't use it.

[Problem to be solved by the invention]

Conventional keyboard input devices have drawbacks such as keys being accidentally pressed by someone else's hands when the user leaves the location after temporarily suspending use, resulting in data being destroyed.

The present invention is intended to prevent careless key input to a keyboard input device.

[Means to solve the problem]

The keyboard control method of the present invention has a keyboard control section that performs keyboard input control and notifies input data to upper-level application software. , after receiving that notification, the key input data notified from the keyboard is not notified to the upper application software, and if a notification of the key code indicating the simultaneous pressing of multiple keys mentioned above is received again, the keyboard will notify the key input data from the keyboard. It has a function to notify the above application software of input data. [Example] Next, the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of the invention. In FIG. 1, one embodiment of the present invention is composed of a keyboard input device 1 and a personal computer 4, and the personal computer 4 has a keyboard control section 2, application software 3, and the like. When the operator presses a key on the keyboard input device l, the corresponding key code is notified to the keyboard control unit 2 in the personal computer, and the keyboard control unit 2 assembles data using the key code and executes the application. Notify the data to software 3.

FIG. 2 is a front view of the keyboard input device, and is a flowchart showing the operation of the portions related to the present invention in the keyboard control section shown in FIG. 3.

When any key on the keyboard input device is pressed,
The key code is sent to the keyboard control section 2 in the personal computer, and thereafter the flowchart shown in FIG. 3 starts. If the key code sent is a predetermined one, for example, if the FNC key and ESC key were pressed at the same time, the process proceeds to step 2 through the process of step l.
Here, the initial state at the machine startup stage is “O”
If the data communication flag is "0", it is set to "1" in step 4, and if it is "1", it is set to "0" in step 3, and this processing routine ends. Also, the key code sent is FNC key and E
If it is other than simultaneous pressing of the SC keys, proceed to step 5 through the processing in step 1, where the data notification stop flag is determined, and if it is ゛0''゜, it is notified to application 3 in step 7, and ゛'' If it is 0', the application 3 is not notified in step 6.

When the FNC key and the ESC key are pressed simultaneously again, the key input data from the keyboard input device 1 is transferred from step 1 to determination in step 2, where flag=O is set in the processing of step. Then, the next sent key input data other than the simultaneous pressing of the FNC+ESC keys is notified to the application software through the process of step 1→step 5→step 7.

In the present invention, the FNC key and the ESC key are designated as keys for stopping and resuming notification of key input data, but these are merely examples and are not limited thereto. Furthermore, although two keys are pressed at the same time, the number is not limited either.

〔Effect of the invention〕

As explained above, the present invention prevents key input data from being communicated to the application software by pressing a plurality of predetermined keys on a keyboard input device at the same time. It has the effect of preventing data from being destroyed even if it is done carelessly.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing a keyboard input device and a personal computer according to an embodiment of the present invention, FIG. 2 is a front view of the keyboard input device, and FIG. 3 is a diagram showing a flowchart in an embodiment of the present invention. be. DESCRIPTION OF SYMBOLS 1... Keyboard input device, 2... Keyboard control unit, 3... Application software, 4... Personal computer (personal computer).

Claims (1)

[Claims] It has a keyboard control unit that controls keyboard input and notifies input data to the upper application software.When multiple predetermined keys on the keyboard are pressed at the same time, the notification is received, and from then on the keyboard If you do not notify the upper application software of the key input data notified by , and if you receive a key code notification indicating simultaneous pressing of multiple keys mentioned above again, the input data notified from the key code will be sent to the upper application software. A keyboard control method characterized by notifying application software.