JPH05233116A - Keyboard device - Google Patents

Abstract

PURPOSE:To validate only a key which is originally inputted even if an adjacent key is errorneously depressed owing to mistouch, to improve input speed and to prevent an accident owing to an operation error at the time of burning work in a keyboard device. CONSTITUTION:This device is constituted of an input part 1 transmitting key input data 101 to a buffer part 2, a sensor part 1a detecting the depression time of the depressed key and transmitting sensor data 102, a buffer part 3 accumulating sensor data 102, an identification part 4 discriminating the number of the depressed keys, identifying the key depressed for the longest time in the plural keys and transmitting identification data 103 and an arithmetic part 5 discriminating whether the key requests repeating or not from depressed time by receiving identification data 103, calculating the number of times of repeating and transmitting transmission instruction data 104 to the buffer part 2. The buffer part 2 transmits key input data 101 to decoding part 6 for the designated number of times.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a keyboard device for inputting character information as a character string.

[0002]

2. Description of the Related Art In a conventional keyboard device, when a character string is input and a key to be originally depressed is pressed together with an adjacent key at the same time, a character to be originally input is input. Characters that were entered incorrectly are now entered at the same time.

[0003]

In the above-described conventional keyboard device, when a key which should be originally depressed is improperly depressed at the same time as an adjacent key, the characters of the improperly depressed key are also deleted. Since it is entered as it is, there is a work to erase the characters that have been entered in error, but it is necessary to enter the key again at that time, so similar mistakes are likely to occur, and the entered character string However, there is a drawback that the text or numerical data is destroyed in the worst case due to an operation error.

An object of the present invention is that even if a key which should be originally depressed and an adjacent key are mistakenly depressed at the same time, only the characters of the key which should be originally inputted can be processed as valid. To reduce erroneous input due to key touch mistakes, and to prevent accidents such as erroneous erasure or destruction of character strings, texts or numerical data due to operational mistakes that may occur when erasing characters that were erroneously keyed in. is there.

[0005]

A keyboard device of the present invention has various keys for inputting a character string or giving a command, detects a depressed key, and sends out key input data, And an input unit having means for detecting the pressed time of the depressed key and transmitting it as data, means for temporarily storing the key input data of the depressed key, and pressing of the depressed key. From the means for temporarily storing the data of the lowering time and the means for temporarily storing the key input data when one key is pressed,
A means for transmitting the key input data and, when a plurality of keys are depressed at the same time, a means for identifying the key of the keys that has been depressed for the longest time and transmitting the input data of the key; Receive the data of the key pressed for the longest time,
If it is determined that the key does not require repeat, and the repeat is not requested, the means for temporarily storing the key input data is caused to send the key input data, and the repeat is requested. In this case, it has means for calculating the number of repeats and for instructing the means for temporarily storing the key input data to send the key input data by the number of repeats.

[0006]

By detecting the pressing time of the pressed key, it is determined whether the number of the pressed keys is one or more, and if there is one, the key input data is sent from the buffer as it is. In the case of multiple keys, the key that has been pressed for the longest time is identified, and it is further determined whether or not the key requires repeat. If not, the key input data is buffered. Sent once more,
When a repeat is requested, the key input data for the calculated number of repeats is sent from the buffer and processed by the decoding unit, so that only the key to be originally input becomes valid.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the keyboard device of the present invention.

The input section 1 is provided with various keys such as letters, numbers, symbols and kana for inputting character strings and giving commands, sends out the inputted key input data 101, and is provided in the input section. The sensor unit 1a detects which key is pressed for how long, and sends the data as the sensor data 102. The buffer unit 2 is a means for temporarily storing the key input data 101, and the buffer unit 3 is a means for temporarily storing the sensor data 102. The recognition unit 4 analyzes the sensor data 102 sent from the buffer unit 3 to determine whether one key is pressed down or a plurality of keys are pressed down at the same time. If there is only one, the sensor data 102
Is sent as the identification data 103, and when a plurality of keys are pressed at the same time, the pressing time of all the pressed keys is calculated, and the key that has been pressed for the longest time is identified. It is sent as identification data 103. Arithmetic unit 5
Receives the identification data 103 sent from the identification unit 4, determines whether or not the key requests repeat, and when the key does not request repeat, the sending instruction data 104
Is sent to the buffer unit 2, and the key input data 10
Give an instruction to send 1 once. When the repeat is requested, the repeat count is calculated, the sending instruction data 104 is sent to the buffer unit 2, and an instruction to send the key input data 101 for the repeat number is given. The decoding unit 6 is a conventional device for receiving the key input data 101 sent from the buffer unit 2 and converting it into the character code data 105. Control unit 7
When it receives the character code data 105, it discriminates whether it is a character string or an instruction, and if it is a character string, it is displayed by a display device (not shown) or printed by a printing device (not shown). It is a conventional device that is executed and, in the case of an instruction, executes control based on the instruction.

Next, the operation of this embodiment will be described with reference to the flow chart of this embodiment shown in FIG.

By pressing the key (process 10), the key input data 101 is detected and stored in the buffer unit 2 (process 11), and the sensor data 102 is sent out to detect the pressing time of all the keys. (Process 1
2) It is stored in the buffer unit 3 (process 13). It is determined whether only one key has been pressed or a plurality of keys have been pressed simultaneously (process 14). If there is one key that has been pressed, the identification data 103 is sent and the process proceeds to process 19. If a plurality of keys are pressed at the same time, the process proceeds to process 15. In process 15, the key that has been pressed for the longest time is determined, and the process proceeds to process 16.
The data missed from this determination moves to processing 20 and is discarded. In process 16, it is determined whether or not the identification data 103 needs to be repeated from the time when it is pressed. If the repeat is necessary, the process proceeds to step 17, and if the repeat is not necessary, the process proceeds to step 19. In the process 17, the required number of repeats is calculated. In the process 18, the send instruction data 104 is sent to the buffer unit 2 to read the key input data 101, and the key input data 101 for the number of times calculated in the process 17 is sent to the process 19.
The processing shifts to 19. In process 19, process 14,
The key input data sent from 16 or 18 is decoded, converted into the character code data 105, and the processing as the keyboard device ends.

[0011]

As described above, according to the present invention, when a plurality of keys are pressed down at the same time, the sensor unit detects the pressing time of each key, and the identification unit detects the longest time. The pressed key is identified, the operation unit determines whether or not the key requests repeat, and the number of repeats is calculated, and only the number of repeats calculated from the buffer unit that stores the key input data Since the code is read out and decoded, even if you press the adjacent key at the same time as the key you should originally input,
Since only the characters of the key that should be originally input can be processed as valid, erroneous input due to key touch mistakes is reduced, and character strings and texts due to operation mistakes that can occur when erasing the characters that have been mistakenly entered Alternatively, it has an effect of preventing accidents such as erroneous deletion or destruction of numerical data.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a keyboard device of the present invention.

FIG. 2 is a flow chart of an embodiment of the present invention.

[Explanation of symbols]

 1 input section 1a sensor section 2 buffer section 3 buffer section 4 identification section 5 arithmetic section 6 decoding section 7 control section 101 key input data 102 sensor data 103 identification data 104 sending instruction data 105 character code data

Claims (1)

[Claims] 1. Having various keys for inputting a character string or giving a command, detecting a depressed key to transmit key input data, and detecting a depression time of the depressed key. And a means for temporarily transmitting the key input data of the depressed key, and a means for temporarily accumulating the data of the depression time of the depressed key. When one key is depressed, the key input data is sent from the means for temporarily storing the key input data, and when a plurality of keys are depressed simultaneously, the key is depressed. Means for identifying the key that has been held down for the longest time and sending out the input data of the key, and receiving whether the data for the key that has been held down for the longest time has been requested by the key. Determine if the repeat If not, the means for temporarily storing the key input data is caused to send the key input data, and if repeat is requested, the repeat count is calculated and the key input data is temporarily stored. Keyboard device having means for temporarily storing the key input data for the number of repeats.