JPS6214219A - Keyboard control system - Google Patents

Abstract

PURPOSE:To prevent occurrence of hindrance to business without providing a reserve key by changing a table that changes key address to a relevant func tion code when an indispensable key for use is broken, and giving function of the broken key to an non-essential key. CONSTITUTION:Normally, when key data are inputted, corresponding code is read out by the first table 4, and processing corresponding to the function is executed. When the mode is made to a table change mode by occurrence of a trouble of a key, key data are inputted from a keyboard 2. The second table 7 is referred to making the data an address, and outputted numerical data are stored in a register 1 in a processor 1. For instance, when numerical data of three figures are obtained from input of three times, the content of the first table 4 is read out by using the data as an address, and stored in a register 2 in the processor. When key data are inputted from the keyboard 2, the processor 1 writes the content ofethe register 2 in corresponding position of the first table making the data an address.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a control method for a keyboard used in PO8 terminals and other OA equipment, and in particular, the present invention relates to a control system for a keyboard used in PO8 terminals and other OA equipment. Concerning alternative control methods.

[Background of the invention]

Keyboards are widely used as input means in OA equipment, etc., but conventionally, if even one of the keys breaks down and becomes unusable, the entire keyboard must be replaced, which is extremely wasteful. As a way to solve this problem, JP-A No. 5
No. 5-108031 provides a spare key (almighty key) and a dip switch connected to it, and when a certain key on the keyboard malfunctions, a code corresponding to that key is set on the dip switch, and the malfunctioning key is replaced. There is a known method of replacing the key with a spare key.

However, this method can only deal with the case where there is one failed key, and considering the failure of multiple keys, it is necessary to prepare multiple sets of spare keys and switch switches. Keyboard I, 1- becomes complicated 11, and
High costs cannot be avoided.

[Object of the Invention] The main object of the present invention is that when a key in the section of the keyboard 1'' fails, the function of the failed key can be replaced by another key without providing a Y-key or a diso switch. The object of the present invention is to provide a keyboard control method that can replace the keyboard.

[Summary of the invention]

For example, on the I) OS terminal, the quotient+l:l:]-do can be manually performed with one touch using each product name key, or can also be performed manually using the department key and numeric keypad. In other words, the business will not be hindered by the quotient, 1r, 1 name key (which is prepared to simplify 1 and cannot be used). Finally, if a key on the keyboard 1- that is not intended to be used breaks down, the function of the song key is replaced with another key that is not urgently needed (11).

Therefore, in the present invention, when a key is turned on, a table is provided that manually converts the address of the key into the corresponding function code. Rewrite the function code 1- of the non-urgent key from A to A to the function code of the faulty key,
The non-urgent key is used as a failure key.

[Embodiments of the invention]

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

Is there a talent for Figure 1? The processor 1 executes various processes, and the necessary processing programs 19 are contained in a memory (ROM) 10. The key data taken into the processor 1 via the human power line 3 by the operation of the keyboard 2 is converted into the corresponding function T1-1 by the first table 4 or the second table 7, and then sent to the processor 1.
Then, processing corresponding to the function is executed. The first and second tables 47 are prepared in the memory (RAM) l1, the first table 4 is used when the device is in a normal state, and the second table 7 contains the contents of the first table 4. Used when converting .

When the processor 1 performs code conversion using the first table 4, it outputs the address of the key data to the address line 5, and takes in the contents of the address in the first table 4 via the data u6. In addition, when performing code conversion using the second table 7, the processor l If 1 "to Mr. i1,
The address of the key data is output to the address line 8, and the contents of the second table 7 at the address are taken in via the data line 9. For example, a microb[1 setter is used for the program L1 processor 1, and the addresses of tables 4 and 7 are set therein as related to the present invention]: address register, read from table 4.7. There is a write register for setting output data, a write register for setting data to be written to tables 4 and 7, etc.

FIG. 2 shows the layout of the keyboard 2. In FIG. 2, X201~1O1Y=O~6 is the physical address of the board 1-, and when a key on the board 1- is operated, the X and Y coordinate code corresponding to the key is sent to the processor 1. Sent. 2\, ■Pa 0~l・9, Fm, Fn, Fx, F
z is a function code quoted from the first table 4 using its X and Y coordinate codes as addresses. Also,
(0) to (9) shown in the same key as l・゛0 to F pa 9
) indicates the numbers 0 to 9 quoted from the second table 7 with its X and Y coordinate code as 7 traces. I"
x is a key to specify normal mode, and I' z is table change mode (mode for rewriting the first table)
This is the key to instruct.

Figure 3 (a) shows the contents of the first table 4, and Figure 3 (b)
indicates the contents of the second table 7. In the case of a normal child mode, when a key on the board is pressed, the first table 4 is referred to and the function code corresponding to the key is read out. key FO-F9
When is pressed, the second table 7 is referred to and the numbers 0 to 9 are
is read out. That is, in the table change mode, keys I='0 to F9 are used in place of numeric keys 0 to 9.

FIG. 4 is a flowchart for explaining the operation of this embodiment.

When the device is powered on, it waits for input from the keyboard 2 (step 100), and when key data is input from the keyboard 2, the input data is set as the address of the first table 4, and the corresponding data is read from the first table 4. The code is read (step 110). 1st table 4
If the output code is the function code Fx, the device enters the normal mode (step 120) and thereafter performs normal keyboard processing. That is, when key data is input, the corresponding code is read out from the first table 4, and processing corresponding to the function is executed.

On the other hand, if the output code from the first chiffle 4 corresponding to the key input from the keyboard 1 is the function code F2, the device changes to the table change mode (step 130).
. In the table change mode, the first table 4 is rewritten as follows.

When the table change mode is entered, the process waits for the next key operation (step 200), and when key data is input from the keyboard 2, the second table 7 is referred to using this as an address (step 21O).

At this time, the code read from the second table 7 is 0.
-9, and other codes are ignored (step 220). The numerical data output from the second table 7 is stored in the register 1 in the processor 1 (
Step 230), and the digit counter is incremented by 1 (Step 240).

Then, it is determined whether the value of the digit number counter is 3 (step 250), and if it is less than 3, the process waits for keyboard operation again.

When 3-digit numerical data is stored in the 1-U register l in the processor l by repeatedly pressing the keys from the keyboard 2 three times, the processor l reads out the contents of the first table 4 using the numerical data as an address. Step 260)
, stored in register 2 in processor l (step 2
70), and.

The system waits for keyboard operation again (step 300).

When key data is input from the keyboard 2, the processor 7 uses this as an address to write the contents stored in the register 2 into the corresponding position of the first table 4.

Through the above processing, the code corresponding to one key in the first table 4 has been changed.

Thereafter, by pressing the Fx key on the keyboard 2, the device returns to normal mode.

In 2\, as a specific example, a case will be described in which the Fn key on the keyboard 2 malfunctions and its function is replaced by the Fm key. In this case, the user first operates the F2 key to put the device into table change mode. Next, F on keyboard 2
Use the O to F9 keys as a numeric keypad and use the malfunctioning Fn
Input the key's XY coordinate data "083". That is, F
O(0).

Press the F8 (8), F3 (3) keys in sequence, and use the keystrokes as an address to select 110 from the second table 7.
'g, '''obtain f3 rg II 3 II. The numerical value "083"' is set in register 1 in processor 1, and using this as an address, the Fn function code is read from first table 4 and stored in register 2 in processor 1. Next, the user presses the Fm key on the keyboard 2-. As a result, the Fn function code is written to the address corresponding to the Fm key in the first table 4. When the table change process is completed, the user presses the Fx key on the keyboard 2'' to return the device to normal mode. after that,
When the Fm key is pressed, the function code of Fn is read from the first table 4, and the process corresponding to the function of Fn is executed.

In this embodiment, a second table 7 is prepared in addition to the first table 4, and when in the table change mode, the address of a failed key is found using a desired group of keys on the keyboard and the second table. However, this is done in consideration of the case where the numeric keypad on the keyboard malfunctions and becomes unusable.If the numeric keypad is normal, you may input the address of the malfunctioning key using the numeric keypad.

〔Effect of the invention〕

According to the present invention, when a key failure occurs, by replacing the function with another key that is not urgently needed, business operations are not hindered, contributing to improved reliability. Furthermore, since substitution only involves changing the table in memory, there is no need to provide a spare key, and substitution of multiple keys can be arbitrarily handled without increasing costs.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
FIG. 3 shows the contents of the first and second tables, and FIG. 4 shows an example of the processing flow according to the present invention. l...processor, 2...keyboard, 4...
・First table, 7...Second table, 10.11
···memory.

Claims (2)

[Claims] (1) In a device that performs processing corresponding to a specified function by key operations on the keyboard, when a key is input from the keyboard, a table is provided that converts the address of the key as input into the corresponding function code. A keyboard control method characterized in that when a key malfunctions, a function code of the malfunctioning key is written in an address corresponding to another key in the table, and the function of the malfunctioning key is replaced by another key on the keyboard. . (2) A second table is provided to convert the address of the key entered into the address of the table (hereinafter referred to as the first table) as input, and when a key on the keyboard malfunctions, key operation, the content shown through the second table is changed to the first table.
2. The keyboard control method according to claim 1, wherein the function code of the failed key is read as an address in the first table, and written to an address corresponding to another key in the first table.