JPH06102981A - Keyboard device - Google Patents

Abstract

PURPOSE:To enable the display of past keyboard operation in a keyboard device. CONSTITUTION:At the time of depressing the key of the keyboard device 1, a key depression detection part 5 detects it and a processing part 2 stores depressed key codes in a storage part (ROM) 4 by a program stored in a storage part (ROM) 3. All of depressed key codes are traced in the storage part 4 by this processing. At the time of seeing the trace of the key code operation, a display indication key is depressed. Then, the key code stored in the storage part 4 by the program is displayed on a display part 8. Besides, at the time of depressing a movement key, the key code can be shift-displayed by the program so as to see the past key operation. Then, display is fininished by the program at the time of depressing a display completion key.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard device of an information processing apparatus, and more particularly to a keyboard operation history display.

[0002]

2. Description of the Related Art A conventional keyboard device of an information processing device transfers a generation code of a depressed key to a host device to which the keyboard device is connected.

[0003]

In this conventional keyboard device, the generation code of the depressed key is transferred to the host device, and there is a problem that the operation history of past key depression cannot be known. .

Therefore, the present invention is intended to display past key depression operations on the keyboard.

[0005]

SUMMARY OF THE INVENTION A keyboard device of the present invention includes a processing unit for recognizing a key press generation code and storing the generation code in a storage unit in time series, the storage unit, and a character corresponding to the generation code. The problem is solved by a configuration including a display unit for displaying and a display unit control unit for displaying the character code stored in the storage unit on the display unit.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram of a keyboard device according to an embodiment of the present invention, and FIG. 2 is a flow chart of the keyboard device according to the embodiment of the present invention.

The keyboard device 1 of FIG. 1 has a storage unit (RO
M) a processing unit 2 for executing a program stored in the storage unit 3, a storage unit (ROM) 3 for storing the program of the flowchart of FIGS. 10 to 13 and a storage unit (RAM) for storing the pressed key code. ) 4, a key press detection unit 5 that detects a key press, a host device connection unit 6 that transfers the pressed key code to a host device, a display unit control unit 7 that controls the display unit 8, and a pressed key code is displayed. And a display unit 8 that operates. Processing unit 2, storage unit (ROM) 3, storage unit (R
AM) 4, key press detection unit 5, host device connection unit 6, and display unit control unit 7 are connected by an internal bus 9.

FIG. 2 is a flow chart of the program stored in the storage unit (ROM) 3, and FIG. 10 shows the one in which the key code is stored in the storage unit (RAM) 4 when each key is pressed or transferred to the host device. Is. Flowchart 11 shows a key code stored in the storage unit (RAM) 4 and displayed on the display unit 8 when the display start key is pressed. Flowchart 12 shows the key code displayed on the display section 8 when the moving key is pressed, which is shift-displayed in the moving direction (time series). Flowchart 13 shows a process of terminating the above display by pressing the display end key.

Next, the operation of this embodiment will be described.

When a key of the keyboard device 1 is pressed,
The key press detection unit 5 detects and the processing unit 2 causes the storage unit (RO
The key code pressed by the program (flow chart 10) stored in M) 3 is stored in the storage unit (RAM) 4. All the key codes pressed by this processing are traced in the storage unit (RAM) 4.

When it is desired to see the trace as a keyboard operation, the display start key is pressed. Then, the key code stored in the storage unit (RAM) 4 is displayed on the display unit 8 by the program (flow chart 11). If the move key is pressed, the key code can be shift-displayed by the program (flow chart 12) and the past key operation can be viewed.

By pressing the display end key, the above display is ended by the program (flow chart 13).

[0013]

As described above, according to the present invention, the storage unit (R
Since the key code pressed in (AM) is stored and traced, and the key code stored above can be displayed on the display unit, it is possible to see the past key press operation of the keyboard. Have.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flow chart of one embodiment of the present invention.

[Explanation of symbols]

 1 keyboard device 2 processing unit 3 storage unit (ROM) 4 storage unit (RAM) 5 key press detection unit 6 upper device connection unit 7 display unit control unit 8 display unit

Claims (1)

[Claims] 1. A processing unit for recognizing an occurrence code of a key press and storing the occurrence code in a time series in a storage unit, said storage unit,
A keyboard device comprising: a display unit for displaying a character corresponding to a generation code; and a display unit control unit for displaying the character code stored in the storage unit on the display unit.