JPS62128313A - Keyboard - Google Patents

Abstract

PURPOSE:To recognize a fault and correct it immediately after a beginner hits an incorrect key by providing two contacts which make on and off with the depressing level of a key corresponding to each key. CONSTITUTION:When an operator hits a certain key on a keyboard, the first contacts 7a and 7b mounted on a moving body 2 is short-circuited at a stage where the key is depressed not completely with a conductor 6. A computer displays a data temporarily on its display device based on a bit of said information. The operator sees the display, and when he/she recognizes the fault and terminates the depression of the key, it is informed to the computer, and the computer erases the input of the data. Also, when the data is correct, the operator continues the depression of the key, and thereby, the second contacts 8a and 8b make on, and the data is informed to the computer as the normal input of the data. Thus, even when an incorrect data is inputted, the incorrect data inputted erroneously can be erased.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a keyboard used for inputting data into computers and word processors.

BACKGROUND OF THE INVENTION In a conventional keyboard, the keys constituting the keyboard have an internal cavity of a support cylinder 43 at the bottom of a movable body 42 having a key top 41 at its tip, as shown in FIG. It has an internal structure in which a conductor 43 that moves slidably is provided, and only one contact 45&, 45b is attached to the inner bottom surface of the support tube 43, and when this key Φ top 41 is pressed, this When the contact is turned on, it means that data corresponding to this key has been input via lead wires 4ea and 4eb, and the control mechanism is such that unless this contact is turned on, data corresponding to this key will not be input. It had become.

Problems to be Solved by the Invention Although the control structure is simple in this conventional method, on the other hand,
It was difficult to use for users, especially beginners who were not yet very familiar with using a keyboard.

For example, if you accidentally press the wrong key, once you press a slightly different key, the data corresponding to that key will be entered and registered. Even if you realize right away that this is wrong, to correct it, release the key you were currently holding down, then press "Bank Space".

The incorrect key you just pressed must be corrected by pressing another key, such as "De! J-1-J, r left arrow."

The present invention has been made in view of the above problems, and an object of the present invention is to provide a keyboard with a simple configuration that allows a beginner to immediately notice and correct the incorrect key presses.

Means for Solving the Problems In order to solve the above problems, the present invention provides two contacts corresponding to each key constituting the keyboard that turn on and off depending on the level at which the key is pressed. By pressing this key slightly, the first contact turns on, and then
When pressed, the second contact is also turned on.

According to the present invention, when an operator attempts to input data using the above-described configuration and presses the key corresponding to the data little by little, the first contact is turned on, and the computer etc. assumes that this data has been input. be informed. Based on this information, the computer temporarily displays this data on its display device. When the operator looks at the display and notices an error, he or she immediately stops pressing the key, and the computer is notified of this and the computer cancels the input of this data.

If this data is correct, the operator continues to press this key, which turns on the second contact and informs the computer that this data has been properly input. In this way, even if you enter incorrect data, you can quickly and easily cancel the incorrectly entered data.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the internal structure of a single key, which is a component of a keyboard in an embodiment of the present invention, and FIG. 2 is a block diagram showing the overall structure of the keyboard in this embodiment. .

In FIG. 1, 1 is a key top configured to normally have a constant upward biasing force, 2 is a moving body, 3 is a support tube, and 4 is slidable on the inner circumferential surface 6 of the support tube 3. A sliding part provided on the key top 1 responds to the vertical movement of the key top 1. 6 is a conductor provided on a part of the side surface and the bottom of the sliding part, 7a
, 7b is a first contact point provided on a part of the side surface of the inner circumferential surface 6, and when the key top 1 is pressed down, the side surface of the conductor 6,
The first contacts 7a and 7b are brought into contact with each other to establish electrical continuity. 8a and 8b are second contacts provided on the bottom surface of the inner cylinder of the support cylinder 3, and when the key top 1 is further pressed down, the bottom of the conductor 6 and the second contacts 8a, 8 are connected.
b are in contact with each other and electrically conductive. 9a to 9d are lead wires connected to each contact point.

In FIG. 2, reference numeral 11 indicates a key part, in which the required number of individual keys shown in FIG. 1 are arranged at locations indicated by dotted circles.

12 is a control unit, which includes an input port 13, an output port 14, a memory 16, a microcomputer 16, and a host computer.
It consists of a computer 17, and a key part 11 and a control part 12 constitute the entire keyboard.

The operation of this embodiment configured as above will be described below.

As shown in FIG. 1, in the keyboard of this embodiment, each key has two contacts, and when the key top 1 is pressed slightly with a finger, the first contact 7a is activated.

7b is turned on, and when pressed further, the second contact is turned on. The on/off information of each key and each contact is read through an input board to a microcomputer 16 that controls the entire keyboard. In this microcomputer 16, the third
In a manner as shown in the flowchart of the process, it is determined from the on/off information of this key contact what data has just been inputted, and it is sent to the host computer 17.

In other words, to explain a little more concretely, 1. When the operator presses a certain key on the keyboard, using the keys whose structure is shown in Figure 1, the first contact point is activated when the key is pressed halfway. 7a and 7b are conductors 6 attached to the moving body 2
shorted by.

Then, when it is pushed down to the end, the second contact 8a is pressed.

8b is short-circuited by a conductor 6 also attached to the moving body 2. In this way, the microcomputer 16, which is the control unit, can know to what level each key has been pressed. by.

The core of the control unit 12 shown in FIG. 2 is a microcomputer 16, which sequentially outputs pulses to each terminal of the output port 14. If any of the keys 11 drawn at the top of Fig. 2 is turned on, the pulse currently output from the output port 14 will be input to any terminal of the input port 13. By observing on the microcomputer 16 which input port 13 the pulse is input to when the pulse is output to which output port 14, it is possible to know which key is turned on. The microcomputer 16 then performs processing according to the flowchart shown in FIG.

That is, first, first contact 7a, 7 of any key
Constantly monitoring whether b is turned on (step 31)
o If it is found that the first contacts 7a, 7b of any key are turned on, the code corresponding to that key is sent to the host computer 17 (step 32). Subsequently, it is monitored whether or not the second contacts aa and ab of this key are turned on (step 33). If the second contacts aa and sb are also turned on, the host computer 17 is informed that the code sent to the host computer 17 earlier has been properly input (step 36). If the second contact does not turn on, the process continues and checks again to see if the first contact turns off (step 34). If it is turned off, the code previously sent to the host computer 17 notifies the host computer 17 again that the input has been canceled (step 35).

When the data is sent from the keyboard, the host computer 17 accepts the data and
All you have to do is display it on a display device or perform input processing. Next, if you are informed that the current data has been entered correctly,
All you have to do is continue processing the input, and from the keyboard,
If the user is informed that the current input has been canceled, he or she may cancel the current input data and cancel the display on the display device.

Effects of the Invention As described above, the present invention has an extremely simple configuration and is extremely easy to use even for beginners.
- Even if you make a mistake in inputting data, you can immediately notice the mistake and correct it when the incorrectly entered data is displayed, which is extremely useful in practice.

[Brief explanation of drawings]

FIG. 1 is a structural diagram of one key constituting a keyboard according to an embodiment of the present invention, FIG. 2 is a block diagram showing the overall structure of the keyboard according to an embodiment of the present invention, and FIG. 3 is a diagram showing the structure of a keyboard according to an embodiment of the present invention. Flowchart showing the control contents of the microcomputer that controls the keyboard in one embodiment of the present invention, No. 4
The figure is a structural diagram of one key constituting a conventional keyboard. 1...Top of key, 2...Moving object,
3...Support cylinder, 4...Sliding part, 5...
...Inner peripheral surface, 6...Conductor, 7a, 7b...
...First contact, sa, sb...Second contact, 11...Ki part, 12...Control unit, 13...・Input port, 14...Output port, 15...Memory, 16...
Microcomputer, 17...Host 0
computer. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure Reed Gland Figure 2 Figure 3 Figure 4 Rit Houen

Claims (1)

[Claims] Each key, which is an element that makes up a keyboard, has two contacts, and when you press the top of the key, the first contact turns on first, and then press it again. As the second contact turns on, the data corresponding to this key becomes the first input state when the first contact turns on, and the second input state when the second contact turns on. If you stop pressing the key top while the first contact is on, and the first contact is also turned off without the second contact being turned on, the A keyboard equipped with a mechanism that cancels data as if no data has been entered.