JPS6366624A - Keyboard diagnosing method - Google Patents

Abstract

PURPOSE:To decide an undiagnosed key through a screen and at the same time to quickly recognize a key having a malfunction, by diagnosing a keyboard after changing the attribute of display corresponding to a pushed key. CONSTITUTION:A processor 11a displays a picture showing an array of keys set on a keyboard 12 on a display device 13 by a keyboard diagnosing request and under the control of a keyboard diagnosing program KDP. Then the processor 11a identifies the codes produced with push of keys and changes (or erases) the attribute of the key display corresponding to the relevant code. Therefore it is decided that a key which is displayed after push of all keys has a malfunction. Thus it is possible to decide an undiagnosed key through a screen and also to quickly recognize a key having a malfunction.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a keyboard diagnostic method, and particularly to a keyboard diagnostic method that can efficiently (reliably) diagnose a keyboard.

<Prior Art> In a system having a keyboard and a display device, self-diagnostic software is used to determine whether each key on the keyboard operates normally.

The first conventional method is to diagnose whether the keys are normal or abnormal by suppressing the keys in an order determined by a program and comparing the code sent from the keyboard with the correct code. The second conventional method is to echo back the suppressed key on the screen, in other words, display characters corresponding to the pressed key to diagnose whether the key is normal or abnormal.

Problems to be Solved by the Invention> However, the first conventional method has poor operability because the order of keys to be pressed is determined, and if the code for a key is not transferred at all, the next key is pressed. The disadvantage is that it cannot proceed to diagnosis.

Further, the second method has the problem that it is necessary to diagnose each key, and it is not possible to diagnose funky keys, and furthermore, it is not possible to determine which keys are undiagnosed on the screen.

From the above, it is an object of the present invention to provide a keyboard that allows keys to be pressed in any order, allows diagnosis of funk syringe keys, allows undiagnosed keys to be determined on the screen, and visually recognizes all malfunctioning keys at a glance. The objective is to provide a diagnostic method.

Means for Solving the Problems> FIG. 1 is a block diagram of a system that implements the method of the present invention.

11 is a main unit, which includes a processor lla and a ROM 11;
b, has RAMI 1 c.

12 is a keyboard, 13 is a display device (CRT)
, 14 is a disk controller, and FL is a floppy disk.

In response to a keyboard diagnosis request, the processor lla displays a picture showing the key arrangement on the keyboard 12 on the display device 13 under the control of the keyboard depressing program KDP, and also identifies the code generated by pressing the key. The key display corresponding to the code is erased, and after all keys are pressed, it is determined that the displayed key is malfunctioning.

<Example> FIG. 2 is a flowchart of the process of the present invention. The present invention will be described in detail below with reference to FIGS. 1 and 2.

(1) After the power is turned on, the system program STP, keyboard diagnostic program KDP, etc. are recorded on the disk drive of the disk controller 14 on the floppy FL.
are set and stored in the RAM 11c under the control of the loading program stored in the ROM 11b.

(2) As a result, an initial screen for selecting subsequent processing is drawn on the display device 13 under the control of the system program.

(3) While the initial screen is being drawn, press the predetermined F key and RO key on the keyboard to select keyboard diagnosis.

(4) By selecting the keyboard diagnosis, the keyboard diagnosis program KDP is started, and a picture showing the key arrangement on the keyboard 12 (see FIG. 1) is displayed on the display screen of the display device 13.

(5) While the picture of the key arrangement is being drawn, the operator presses any key on the keyboard.

(6) The processor lla reads a code generated from the keyboard 12 by pressing a key, and determines whether the code matches a code assigned to a predetermined key arranged on the keyboard.

(7) If a matching code exists, change one trivia on the key display according to the code. In addition, changing the attributes means changing the display color,
This means blinking or bending (reversing the display color and background color). However, changing the display color to the same color as the background means erasing the display.

The following description will be made assuming that the display is turned off.

(8) The operator checks whether the pressed key matches the key whose display has disappeared.

(9) If they match, it is determined that the pressed key is operating normally.

However, if they do not match, it is determined that the suppressed key is malfunctioning.It should be noted that the key display of the malfunctioning key remains.

(11) Meanwhile, in step (6), the keyboard 12
If the code generated from rKEYB does not match the code of any key arranged on the keyboard 12, rKEYB
The error message OARD ERRORJ appears on the display screen. Note that none of the key displays disappear.

As a result, it is determined that the pressed key is malfunctioning (step 00).

(Next, the operator checks whether all the keys have been pressed. If not, repeats the process from step (5) onwards. If the keys have been pressed, the diagnostic process ends. At this time, the operator draws the It can be recognized that the key that is being used is malfunctioning.

<Effects of the Invention> According to the present invention, a picture showing the 1,000-key arrangement on the keyboard is displayed on the display screen, and a code generated by pressing a key is identified and attributes of the key display according to the code are displayed. Because it is configured to change (for example, erase) keys, the order of key presses can be arbitrarily set, function keys can be diagnosed, undiagnosed keys can be determined on the screen, and the keys disappear on the display screen after all keys have been pressed. The remaining keys can be recognized at a glance as malfunctioning keys.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a system that implements the method of the present invention; FIG. 2 is a flow chart of one process of the present invention. 11... Main body part, 12. Keyboard, 13...Display device

Claims (3)

[Claims] (1) In a keyboard diagnostic method for a system including a keyboard and a display device, in response to a keyboard diagnostic request, a picture showing the key arrangement on the keyboard is displayed on the display screen, a code generated by pressing a key is identified, and the code is A keyboard diagnostic method characterized by diagnosing a keyboard by changing key display attributes according to the keyboard. (2) A keyboard diagnostic method according to claim (1), wherein an error message is displayed if the code does not match any of the codes assigned to all keys arranged on the keyboard. . (3) A keyboard diagnostic method according to claim (1), characterized in that an attribute is changed by erasing a key display, and a key displayed after all keys are pressed is determined to be abnormal.