JPS62202224A - Key input device - Google Patents

Abstract

PURPOSE:To output repeatedly data included in input data of the preceding line with simple constitution by designating one-line components of input data of the preceding line stored in a memory and outputting them selectively. CONSTITUTION:If a one-character sending key, a designated character sending key, or the like on a key matrix body 4 in a keyboard body 1 is operated while watching the display on a CRT 16, designated and selected characters out of one-line components of input data of the preceding line stored in a line buffer 7-1 of a RAM 7 through a CPU 5 are stored in a line buffer 7-2. Simultaneously, these characters are supplied to a data processor 10 together with characters according with normal key operations of the matrix, and the following line is displayed on the CRT 16, and the buffer 7-1 is updated to contents of this line. Thus, data included in input data of the preceding line is outputted repeatedly with the simple constitution and the key input operation is performed easily and quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a key input device that is connected to a data processing device such as an electronic calculator or a word processor to input data or give various instructions.

[Prior Art] Generally, in a conventional keyboard device connected to a data processing device such as a computer or a word processor, a key code signal corresponding to a pressed key is directly sent to the data processing device on the main body side. There was no means to temporarily store the keys pressed by the operator.

Therefore, even when data input on a line immediately before a line break or similar data is to be inputted after a line break, the operator must input the data by repeating key operations.

In this way, repeated input of the same or similar data frequently occurs during actual keyboard operations, resulting in a problem that the operator's operations are complicated.

[Problems to be Solved by the Invention] Therefore, an object of the present invention is to solve such problems and to input data contained in input data at least one line before the inputted line by a simple key operation. Accordingly, it is an object of the present invention to provide a key input device that can repeatedly output data to a data processing device.

[Means for Solving the Problems] In order to achieve such an object, the present invention provides a memory for storing input data for one line at least one line before the input line, and a memory. The present invention is characterized by comprising a key means for specifying and selectively retrieving all or part of one line of input data stored in the computer.

[In the operation tree invention, input data for one line at least one line before the line where the input is being performed is stored in memory, and when performing the input, the stored input data is stored in the memory. All or part of character data is read out by a simple operation of giving an instruction from a predetermined key and output to a data processing device.

[Example] Hereinafter, the tree invention will be described in detail with reference to the drawings.

FIG. 1 shows a schematic configuration of an embodiment of the present invention.

In FIG. 1, 1 is a keyboard body that outputs input data to a data processing device, and control keys 2-1 to 2-4 that output input data stored in an internal memory (not shown) of the keyboard body 1. , generate a character code,
For example, characters in JIS array.

A symbol entry key 3 is arranged on the keyboard body. 3A is a line feed key.

The control key 2-1 is a one-character sending key for sending one character of data out of one line of data stored in the memory to the data processing device.

The control key 2-2 is a line sending key that sends data from the next data that has been sent to the last data of one line of data stored in the memory to the data processing device.

The control key 2-3 is a specified character sending key that sends character data from a predetermined position to a specified character position out of one line of data stored in the memory to the data processing device.

Control key 2-4 is an insert key for performing insert mode.

Next, an example of a circuit configuration in an unimplemented example is shown in FIG.

In FIG. 2, 4 indicates pressed control keys 2-1 to 2-
4 and a key matrix 4 that generates key code signals for the normal key 3. The generated key code signal is sent to a central processing unit (CPU) 5.

6 is a read-only memory (ROM) in which a program for controlling the CPU 5 is stored.

7 is random access memory (RAM), R
AM7 includes a line buffer 7-1 that temporarily stores character and symbol input data for one line preceding the line currently being input using the normal key 3;
Line buffer 7- for temporarily storing symbol input data
2 and a memory 7-3 for storing various variables used in the control program.

8 is an interface unit for sending the character code to the main body side, and the character code is sent to the central processing unit (in the data processing unit ffflo) via this unit 8.
CPtl) 11. This CPU II is controlled by a program stored in a read-only memory (ROM) 3.

14 is random access memory (RAM);
Under the control of CPU1l, character code information sent from the keyboard 1 side is stored.

The CPU II retrieves character code information from the RAM 14, performs data processing, and outputs the result to an output device 16 such as a display via the interface unit 15.

Next, an example of the control procedure of the CPU 5 will be explained with reference to the flowchart of FIG.

In FIG. 3, the power supply is inserted into the keyboard 1, and the
When I''U5 starts controlling, the CPU 5 first initializes the contents stored in the RAM 7 in step Sl, and updates the key matrix until the press of the control key 2 or the normal key 3 is detected (step S3). The scanning (step S2) continues and cycles between step S2 and step S3.

In step S3, when it is detected that the control keys 2-1 to 2-4 or the normal key 3 have been pressed, it is determined whether the pressed key is any of the control keys 2-1 to 2-4. A determination is made in the next step S4. When the pressed key is one of the control keys 2-1 to 2-4, the process advances to step S5, and one line of data stored in the line buffer 7-1 is stored in accordance with the type of control key pressed. A predetermined number of characters and symbols are sent to the data processing device 10 as they are or with them skipped.

The types of control keys include the previously mentioned single character sending key 2-1, line sending key 2-2. Specified character key 2-3
, In addition to the insert keys 2-4, there are also a 1-character skip key that sends character data skipped by one character, a specified character skip key that sends character data skipped up to a specified character, and a key that performs a replacement mode. Kotomotegiru.

In step S4, if it is not the control key 2, that is, if it is the normal key 3, the process proceeds to step s6, where the character or symbol code corresponding to the pressed normal key 3 is sent to the data processing device 1o. In the next step S7, in the case of step S5, the pointer of the character data storage address in the line buffer 7-1 is moved to the line buffer 7-1 according to the type of the selected control key.
At the same time as preparing for the next data transfer from line buffer 7-1, data to be transferred from line buffer 7-1 to data processing bag w1° is stored in line buffer 7-2. Step S
6, in this step S7, step s
In step 6, the data sequentially input is also stored in the line buffer 7-2, and the pointer of the line buffer 7-1 is updated in accordance with the data input.

Next, in step S8, it is determined whether data input for one line has been completed, and if the input has not been completed, the process returns to step S2. On the other hand, if input has been completed, step S is performed after transferring one line of character data stored in line buffer 7-2 to line buffer 7-1.
Return to step 2 and wait for character data input on a new line.

Thereafter, data such as input characters and symbols is normally sent to the data processing device 10 using the same procedure, but when any of the control keys is pressed, the previous 1 line stored in the line buffer 7-1 All or a portion of the character data for the minutes can be sent to the data processing device 10 in a desired format depending on the pressed control key.

Next, a more specific example of the operation of this embodiment will be described.

The operator selects 'Thisisuaw' from keyboard 1.
It is assumed that one line of character and symbol data such as "pen, +, l" is input, and this character data is displayed on the display 16.Here, the mouth symbol is a space or a press of the space key. The U symbol is not displayed on the display 16.

The symbol means a line feed, and a line feed is executed by pressing the line feed key 3A. When this one line of input is complete,
The above-mentioned character data is stored in the line buffer 7-1. Next, the operator
al, 1. The procedure for inputting one line of character data ``d'' and the operations of each component are as follows.

■) When the operator presses the one-character send key 2-1 twice, the characters stored in the line buffer 7-1 are
The character data ``'' and ``h'' are transferred to the data processing device 10 and displayed as ``Th'' on the display 16, and are stored in the line buffer 7-2. and,
The pointer of line buffer 7-1 is updated to the third data position.

2) Next, the operator normally presses keys 3 °a” and t.
When you press ", character data of IIa" and °t゛° are sent to the data processing device 10, and the display 16 shows °.
'That' is displayed.Also, line buffer 7-
°'at'' is also stored in 2.

Then, the pointer of the line buffer 7-1 is updated to the fifth position, that is, the position of the character data '°U°°.

3) When the operator presses the specified character sending key 2-3 and then presses the normal key 3, the 'LJ' up to the point before "p" stored in the line buffer 7-1 is displayed.
1sua'' data is sent to the data processing device IO. Through the above operations, the display on the display 16 is as follows.
"Tha tw 1sua". The same character data as this display is stored in the line buffer 7-2. The pointer of the line buffer 7-1 indicates the character data at the next position of the character data sent above, that is, °p'.
.

will be updated to the location.

4) Next, the operator selects 'ba11. +1", this character data is sent to the data processing device 10, but when the line feed key 38 is pressed, it is determined that data input for one line has ended, and the data is stored in the line buffer 7-2. Latest line of character data 'Thatuis-'
aUball, e''' is transferred to the line buffer 7-1.

5) Next, “T h a t, u i S LJ a
When the operator inputs "LJ b a l l,", press the designated character sending key 2-3 in the same way as the key operation in section 3), and then press the normal key "b" to send the line buffer 7- 'That stored in 1, +
Character data up to ``w1su8'' is sent to the data processing device 10 and stored in the line buffer 2.

6) Next, if you press the insert key 2-4, even if you press the normal key 3 after that, the pointer of the line buffer 7-1 will change to the pointer position of the character data in item 5) (
In this example, the character data stored in the line buffer 7-1 is not sent out.

7) When the operator inputs 'bigLJ'' using the normal key 3, this character data or the data processing device lO
The data is sent to the line buffer 7-2 and stored in the line buffer 7-2.

8) Next, when the line end key 2-2 is pressed, the character data "bal" stored in the back buffer 7-1 is pressed.
'Thattu' is sent from the keyboard 1 to the data processing device 10, and 'Thattu' is sent to the line buffer 7-2.
is wB ubig Uball,” is stored.

9) When the operator enters line feed key 38, CpH
Step 5 determines that the line input has finished, and as in section 4),
"Thattui" stored in line buffer 7-2
Character data of ``s ua ubig w ball,'' is transferred to the line buffer 7-1.

By repeating the above operations, the operator can input character data that is often repeatedly input by simple key operations, and can reduce the number of key operations.

[Effects of the Invention] As described above, according to the present invention, a memory for storing data input at least one line before the line currently being input;
Since a control key is provided to output a predetermined number of characters and symbol data at a predetermined position included in the character and symbol data stored in the memory to the data processing device, when the operator operates the input keys, the same Characters and symbol data can be input by simple key operations without having to be input repeatedly, reducing the number of key operations required by the operator, thereby shortening key operation time and significantly reducing the operator's key operation load. You can get the effect of being able to do what you want.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a schematic external configuration of a keyboard according to an embodiment of the present invention, FIG. 2 is a block diagram showing a circuit configuration according to an embodiment of the present invention, and FIG. 3 is a control diagram of an embodiment of the present invention. It is a flowchart showing an example of a procedure. 1... Keyboard operation, 2-1... Single character send key, 2-2... Line send key, 2-3... Specified character key, 2-4... Insert key, 3...・Normal key, 38...Line feed key, 4...Key matrix, 5, jl...Central processing unit, 6.13...Read only memory, 7.14...Random access memory, 8.12.1
5 river interface, 16...display device. ■---■ Honmyo Honto friend J begging I row 70-yato

Claims (1)

[Claims] 1) 1 at least one line before the input line
A key input device comprising: a memory for storing input data for a row; and key means for specifying and selectively retrieving all or part of the input data for one row stored in the memory. Device. 2) The key input device according to claim 1, wherein the memory stores one line immediately before the line on which input is being performed. 3) The key input device according to claim 1 or 2, wherein the key means specifies the final position of a range of data to be retrieved.