JPS5987535A - Input device of word processor - Google Patents

Abstract

PURPOSE:To prevent a system-down caused by abnormality of an input device and to reduce the burden of an operator by providing a check means for discriminating a state of a key switch of the input device when an electric power supply is turned on and deciding a prescribed case to be abnormal. CONSTITUTION:A body system part 25 of a word processor and an input device 27 are connected by a cable 26, and an on/off information of a key switch placed like a matrix is detected, is brought to signal processing and is transferred to the system part 25 by the device 27. A CPU10, a boot ROM 11, a program memory 12 and a flexible device 4 are provided on this system part 25, and when an electric power supply is turned on, a boot ROM start 30, a memory check 31 and an input device check 32 are executed successively in accordance with procedures determined in advance. In this state, in case when an on- state is detected by a key switch group by the check 32, it is decided to be abnormal, the burden of an operator is reduced, and a system-down caused by abnormality of the input device 25 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an input device for a word processor, and more particularly, to an input device for a word processor.
Regarding abnormality checking of input devices.

FIG. 1 shows the general configuration of a word processor. 1 indicates a main body, and inside the main body 1, a CAT 2 for displaying the status and a flexible disk device 4 for driving a flexible medium (not shown) as a storage medium are stored.

Furthermore, an input device 3 is arranged at the front of the main body 1, allowing the operator to input characters and the like.

FIG. 2 shows the configuration as viewed from the wiring system), and shows that the main control circuit 5 and each device are connected by cables 6, 7, and 8.

The main control circuit 5 shown in FIG. 2 will be explained using FIG. 3. IO is a program storage type calculation unit (hereinafter referred to as CPU), 11 is a boot ROM from a non-volatile memory that has a program executed when a stain source is turned on, and 12 stores a program that executes the function of a statement 11Ila collector. 14 is a character generator that stores dot data representing kanji characters in a dot matrix using kanji codes as indexes; 15 is a C character generator;
Character generator 14 according to the instructions of PU10
This is a controller that generates a signal to read out the dot data and operate the CRT2t.

Reference numeral 13 denotes a flexible disk control circuit (FDCI) that controls the flexible disk device 4 related to the temporary storage section.The circuits are connected to each other by a path line 20.

In the above configuration, when the power is turned on now, the CP
U10 executes a program stored in boot module 0M11, which is an initial program loader. in general,
This program transfers data stored on a flexible disk (not shown) set in the flexible disk device 4 to the program memory 12.

When this transfer is completed, the CPU 1o branches control to the starting address of the program as a document editing device stored in the program memory 12. As a result, according to the manual operation of the keys on the input device 3, the key manual power CE16. C
Processing such as OR, display of characters on T2, document editing, etc., is possible through the PU10f+-.

In the configuration described above, the input device 3 will be mainly considered.

In the case of a word processor like the one shown in FIG. It is given as on/off information for a group of keys possessed by the device. Therefore, input devices play an important role in ensuring that the functions of the entire system function properly.

However, in a normal system, the input from the input device is not checked immediately after the power is turned on, and when the input from the outside is required, the input status can be checked to determine if the input device is operating normally. An abnormality is confirmed. Unfortunately, this means that due to an abnormality in the input device, the system operates after the power is turned on, and all the processing that was executed may be wasted, placing a greater burden on the operator. It turns out.

An object of the present invention is to provide an input device that can prevent a system including the input device from going down due to an abnormality in the input device by first performing various checks on the input device after power is turned on. be.

The present invention first checks whether the input device can properly operate its functions after turning on the power,
This is intended to prevent system failure after system operation progresses due to an abnormality in the input device, and to reduce the burden on the operator.

Next, examples will be described.

FIG. 4 is a block diagram of a word processor showing one embodiment of the present invention, which is composed of a main system section 25, an input device 27, and a cable 26 connecting them. Among these, the input device 27 detects on/off information of the key switches arranged in a matrix, processes the signals, and transfers the signal to the main body system section 25, thereby controlling the system from the outside. Further, the main system unit 25 selects and executes a plurality of functions M based on data input from the human power device 27.

The operation of this embodiment will be explained based on the flowchart shown in FIG.

First, each process performed by the CPU 10 included in the main system section 25 will be explained.

Processing 30 is a Boo FROM II that performs initial processing of the system.
Start.

Process 31 is a memory check, in which the program memory 12, which is the basis of the operating program of this system (related to the operation of the CPU I/O), is checked.

Process 32 is a check process for the input device 27, which is a feature of this embodiment.

In process 33, the program is stored from the flexible disk device 4 to the program memory 12.

Processing 34 indicates a step in which data input from the input device 27 is processed based on the program on the program memory 12.

Process 35 indicates a process in which the data processed in process 34 is stored on a flexible medium through the flexible disk device 4.

Next, the characteristics and importance of the process 32 will be described in the flow shown in FIG.

Each process in FIG.
．． Flows in the order of 33, 34, and 35. Especially processing 33.34
．． 35, the start of each process is instructed by manual key input from the input device 27.

Therefore, assuming that process 32 is not performed, process 33
, 34, 35, the discovery of an abnormality in the input device 27 results in wasted time from the time the power is turned on until the process starts, and especially in process 3, which requires the most time.
The inability to use the processed data storage instruction key of the input device 27 in the process 35 after completion of the process 4 places a heavy burden on the operator.

For the above-mentioned reasons, it can be seen that the input device check process 32 is of great importance from the perspective of the entire system.

Next, the process 32 will be explained with reference to FIG. 6, which is further illustrated as a side valve.

This input device check process begins with process 36.

In the process 36, in the input device 27 which obtains the on/off information of a group of keys and uses it as input data, it first checks for a short circuit in the key switch, and if there is a short circuit, it does not proceed to the next process and displays an abnormality to the operator. do. If there is no short circuit, the process moves to the next check process 37.

Processing 37 is to check whether or not key personnel can actually perform the key operations. Have key personnel help. Here, the biggest risk is the inability to store processed data, and it is most effective to perform key human checks on this.

Those that pass this process 32't- are recognized as normal by the input device 27, and then proceed to the next process 33 to operate the entire system. In addition, if an abnormality is discovered, the system operation (processing 3
3 and later) It is possible to handle abnormalities before starting.

According to this embodiment, since various checks are performed on the input device 27 when the power is turned on, it is possible to prevent the system from going down due to an abnormality in the input device after the system operation has progressed, and to let the operator know whether the input device 27 is abnormal or not. There is no need to place an excessive burden on the user, which has a great effect from the product's functionality standpoint.

According to the present invention, it is possible to prevent the system from going down after the system operation has progressed due to an abnormality in the input device, and it is possible to reduce the burden on the operator when the input device is abnormal.

[Brief explanation of the drawing]

1 to 3 show a conventional word processor, in which FIG. 1 is a perspective view of the entire structure, FIG. 2 is a block diagram of the overall configuration, and FIG. 3 is a block diagram of the main control circuit. 4 to 6 show a word processor according to the present invention, with FIG. 4 being a block diagram of the overall configuration, and FIGS. 5 and 6 being operational flowcharts. 10...CPU, 11...Boo 140M, 12...
・Program memory, 25... Main body system section, 27
...I'm on duty. Figure 2 Figure 4

Claims (1)

[Claims] 1. An input device that sends an input signal generated by detecting on/off of an input key switch to an attached system unit, and controls various operations using the input signal from the input device. A word processor having a main body system unit that performs input processing, characterized in that the word processor is equipped with a check means for determining the state of the key switch included in the input device when the power is turned on, and determining that it is abnormal if the key switch is not in a predetermined state. Device. 2. The word processor input device according to claim 1, wherein the checking means determines that there is an abnormality if an ON point is extracted from a group of switches included in the input device when the power is turned on. 3. In claim 1, the checking means:
An input device for a word processor that instructs to press predetermined switches in a preset order when the power is turned on, and inputs the input in that order; if there is no input, it is determined that there is an abnormality.