JPH04151709A - Keyboard inputting device - Google Patents

Abstract

PURPOSE:To realize a keyboard inputting device which has an arbitrary key array with one device by displaying a key arrangement image on a display, and operating a key input by touching the key image on a display screen just like keys on an actual keyboard. CONSTITUTION:When each key image displayed on the display screen of a display 3 is pressed by an operator, position data 9 indicating a pressing position is prepared by a point position detecting circuit 5, a key code preparing circuit 6 performs an access to a key code buffer 4 according to the position data 9, reads a key code 10 applicable to the pressed key image included in a key code group 8, and transmits it to a central processing unit 1. Like this, the key code transmitted to the central processing unit 1 works as well as the key code outputted from the actual keyboard. Thus, the operator can operate the key input towards each key image displayed on the display screen of the display 3 just like the actual keyboard.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a keyboard input gK of an information processing device.

[Conventional technology]

Conventionally, keyboard input devices used in various information processing devices have different key layouts for each device, and these keyboard input devices are designed each time and are designed to suit the information processing device to which they are connected. It was used as a special input device.

[Problem to be solved by the invention]

The above-mentioned conventional keyboard input devices have various different key layouts for each device, and each keyboard input device is designed for each case and used as a dedicated input device for each connected information processing device. Therefore, when a new keyboard input device is required to be connected to a new information processing device, it is often necessary to design a new keyboard input device each time, and the keyboard input device designed in this way cannot handle other information. There was a problem in that it could not be used in processing equipment.

An object of the present invention is to provide a keyboard input device that can realize a keyboard input device with an arbitrary key arrangement with one device.

[Means to solve the problem]

A keyboard input device according to a first aspect of the invention includes: a display that displays a key layout image; a key layout image buffer that stores key layout image data displayed on the display; and a key layout image stored in the key layout image buffer. It is generated in a one-to-one correspondence to each key image in the data, and when an individual key image in the key arrangement image displayed on the display is pressed, the key images on the sides are a key code buffer that stores a key code sent to a central processing unit to execute an assigned function; and a point position detector that detects a key image pressed on the display and outputs position data of the key image. means, a key code generator for accessing the key code buffer based on the position data of the key image, reading out a key code for executing a function assigned to the pressed key image, and sending the key code to the central processing unit. and means.

A keyboard input device according to a second aspect of the invention includes: a display that displays a key layout image; a key layout image buffer that stores the key layout image data; a key code buffer that stores a key code generated in response to the key image and used to execute a function assigned to the individual key image;
a point position detection means for outputting position data of the key image; and a key code generation means for accessing the key code buffer and reading out the key code of the pressed key image based on the position data of the key image; The key layout image data to be displayed on the display is written from the central processing unit to the key layout image buffer, and the key layout image data written to the key layout image buffer is read out and displayed on the display screen of the display. and execute the functions of the individual keys displayed on the display screen of the display at the same timing as the key layout image data is written from the central processing unit to the key layout image buffer. write a group of key codes into the central processing unit's color key code buffer, and when each key image displayed on the display screen of the display is pressed, the point position detection circuit indicates the pressed position. The position data is generated and sent to the key food generation circuit, and the key code generation circuit accesses the key code buffer according to the position data, reads out the key code corresponding to the pressed key image, and outputs the key code to the central processing unit. is configured to send to.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

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

The keyboard input device shown in FIG. A key code buffer 4 that stores key codes generated corresponding to 1 and that execute functions assigned to individual key images when each key image in the key arrangement image is pressed; Point position detection means 5 detects a pressed key image and outputs key image position data 9; accesses the key code buffer 4 using the key image position data 9 output from the point position detection circuit 5; Key code generation means 6 that reads a key code for executing the function assigned to the pressed key image and sends it to the central processing unit.
It consists of

Next, the operation will be explained.

In FIG. 1, key layout image data 7 to be displayed on the display 3 is written from the central processing unit 1 to the key layout image buffer 2. The key layout image data 7 written in the key layout image buffer 2 is further read out and displayed on the display screen of the display 3. That is, on the display screen of the display 3,
An image of the key layout on the keyboard is displayed.

Furthermore, at the same timing that the above-mentioned key arrangement image data 7 is written from the central processing unit 1 to the key arrangement image buffer 2, the key arrangement image data 7 is written to the key arrangement image buffer 2 from the central processing unit 1. A key code group 8 is written from the central processing unit 1 to the key code buffer 4. The key codes included in the key code group 8 are generated in one-to-one correspondence with each key image in the key image data 7 stored in the key arrangement image buffer 2, and are displayed on the display 3. When an individual key image in the displayed key arrangement image is pressed, the function assigned to each key image is executed.In this state, each key image displayed on the display screen of the display 3 is pressed. , when pressed by the operator, the point position detection circuit 5 generates position data 9 indicating the pressed position and sends it to the key code generation circuit 6. The key code generation circuit 6 accesses the key code buffer 4 according to the position data 9, reads out the key code 10 corresponding to the pressed key image included in the key code group 8, and sends it to the central processing unit 1. do.

The key codes sent to the central processing unit 1 as described above function in the same way as the key codes output from the actual keyboard. You can perform input operations as if you were using an actual keyboard.

〔Effect of the invention〕

As explained above, the present invention displays a key arrangement image on a display, and allows users to press arbitrary keys by touching the key images on the display screen with their hands like keys on an actual keyboard. This has the effect that a keyboard input device with a key arrangement of 1 is realized with one device.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention. 1...Central processing unit, 2...Key layout image buffer, 3...Display, 4...
...Key code buffer, 5 ... Point position detection circuit, 6 ... Key code generation circuit,
7...Key arrangement image data, 8...
・Key code group, 9...Position data, 10...
...Key code. Agent Patent Attorney Susumu Uchihara

Claims (1)

[Scope of Claims] 1. A display that displays a key layout image; a key layout image buffer that stores the key layout image data displayed on the display; and a key layout image buffer that stores the key layout image data that is stored in the key layout image buffer. is generated in one-to-one correspondence to each key image in the key arrangement image, and is assigned to the individual key image when the individual key image in the key arrangement image displayed on the display is pressed. a key code buffer that stores a key code sent to a central processing unit to execute a function; a point position detection means that detects a key image pressed on the display and outputs position data of the key image; key code generation means that accesses the key code buffer based on the position data of the key image, reads out a key code for executing a function assigned to the pressed key image, and sends it to the central processing unit; A keyboard input device comprising: 2. A display for displaying a key layout image; a key layout image buffer for storing the key layout image data; and a key layout image buffer for storing the key layout image data; a key code buffer that stores key codes for executing functions assigned to individual key images; and point position detection means that detects key images pressed on the display and outputs key image position data. , a key code generating means for accessing the key code buffer based on the position data of the key image and reading out the key code of the pressed key image, the key arrangement image data to be displayed on the display; The key layout image data is written from the central processing unit to the key layout image buffer, and the key layout image data written to the key layout image buffer is read out and displayed on the display screen of the display, and the key layout image data is A group of key codes for executing the functions of the individual keys displayed on the display screen of the display are sent from the central processing unit to the key code at the same time that the central processing unit writes the key code to the key arrangement image buffer. When each key image written in the buffer and displayed on the display screen of the display is pressed, the point position detection circuit generates the position data indicating the pressed position, and the key code generation circuit generates the position data indicating the pressed position. A keyboard input device characterized in that the key code generation circuit accesses a key code buffer according to position data, reads out a key code corresponding to a pressed key image, and sends it to the central processing unit.