JPH03208118A - Prevention circuit for malfunction of mouse - Google Patents

Abstract

PURPOSE:To prevent malfunction even if there are the erroneous shift of a mouse and the erroneous depression of a mouse key by operating a prevention means by means of the operation of an operator through the use of a signal transmission means, and preventing the transmission of an erroneous cursor shift signal and a mouse selection signal from the mouse. CONSTITUTION:Discrete values 1-9 showing the shift quantity of the mouse are sequentially transmitted from a decoder 15 to an AND circuit 24 with the shift of the mouse 10 in the direction of X and the shift discrete values for the direction of Y are sequentially transmitted from a decoder 17 to an AND circuit 25. When a lock key 23 is depressed, a voltage from a power source +V is voltage-divided by resistances R1 and R2 and they are transmitted to circuits 24-27. Then, the discrete values 1-4 of the decoders 15 and 17 are transmitted from the circuits 24 and 25. When keys 12 and 13 are depressed, partial pressures are respectively and simultaneously transmitted to the AND circuits 26 and 27. When the key 23 is not depressed, the partial pressures are impressed on the circuits 24-27.

Description

[Detailed Description of the Invention] [Summary] A mouse that prevents erroneous transmission of cursor movement signals and mouse select signals sent by the mouse in a mouse used as an input means for a display device operating in a multi-window environment. Regarding the malfunction prevention circuit, the purpose of this circuit is to prevent malfunctions by sending a cursor movement signal that moves the mouse cursor on the display screen by moving it on a flat surface, and by pressing a button, the circuit moves the mouse cursor on the display screen. In a mouse that sends out a mouse select signal for specifying a display area range, a mouse menu, etc., a blocking means for blocking the sending of the cursor movement signal and the mouse select signal, and a signal for operating the blocking means are provided. and a signal sending means for transmitting a desired cursor movement signal and a mouse select signal from the mouse, and then the blocking means prevents the sending of the cursor movement signal and mouse select signal.

[Industrial application field]

The present invention relates to a mouse used as an input means for a display device operating in a multi-window environment, and more particularly to a mouse malfunction prevention circuit that prevents erroneous transmission of cursor movement signals and mouse select signals sent by the mouse. .

Display devices used in personal computers, workstations, etc. are increasingly being used in multi-window environments, and mice have become indispensable products as pointing devices used in this multi-window environment. It has become.

By the way, when the mouse is moved on the desk, the built-in ball rotates and sends a cursor movement signal that moves the mouse cursor on the display screen of the display device, and when a button on the mouse is pressed, the display screen is moved. A mouse select signal is sent to specify the range of the display area, the mouse menu, and the like. Since the cursor movement signal and mouse select signal are processed by a driver that operates separately from the application program, they are processed separately from key manual processing input from a keyboard or the like.

Therefore, if the mouse is moved or a mouse button is pressed during keyboard operation, a different application program may be started, characters entered from the keyboard may not be displayed, or data may be entered in a different window. It is necessary that no malfunction occurs.

[Conventional technology]

FIG. 5 is a diagram illustrating an example of the prior art.

FIG. 5(a) is a view of the mouse viewed from above, and the lower side of the mouse 10 is provided with a ball 11 that rotates when moved on the desk, and the upper surface is provided with buttons 12 and 13. There is.

Then, the ball 11 of the mouse 10 is shown in Figure 5 (b).
As shown in FIG. 2, a shaft 14 is attached to the ball 11 and rotates as the ball l1 rotates when the mouse 10 is moved in the direction of the arrow XX'. Further, a shaft 16 is attached to the ball 11 and rotates as the ball 11 rotates when the mouse IO is moved in the direction of arrow Y-Y'.

A tachometer is attached to the shaft 14, and when the mouse lO is moved from this tachometer in the direction of arrow X, the shaft 14 rotates as the ball 1 rotates, as shown in XA and , pulses having a phase shift of 90 degrees from each other are sent out, and the decoder 15 counts these pulses as shown.

That is, the period from the falling edge of the XA pulse to the falling edge of the XB pulse is counted as 1, and the period from the falling edge of the XB pulse to the rising edge of the XA pulse is counted as 2.
The period from the rise of the XA pulse to the rise of the XB pulse is counted as 3, and from the rise of the XB pulse,
The period up to the falling edge of the XA pulse is counted as 4. Counting 5 or more is also the same as above.

A tachometer is also attached to the shaft 16, and when the mouse 10 is moved from this tachometer in the direction of the arrow Y, the shaft 16 rotates as the pole l1 rotates, as shown in YA and YB in FIG. 5(C). Thus, pulses having a phase shift of 90 degrees from each other are sent out, and the decoder 17 counts these pulses in the same manner as the decoder 15.

Further, when the mouse 10 moves in the direction of the arrow χ', the tachometer is rotated by the shaft 14 rotated by the rotation of the ball 11, so that the tachometer is rotated by 90 degrees, as shown at XA and XB in FIG. 5(d).
Pulses that are out of phase are sent out, and the decoder 15 counts these pulses as shown.

That is, the period from the rise of the XB pulse to the rise of the XA pulse is counted as -1, the period from the rise of the XA pulse to the fall of the XB pulse is counted as -2, and from the fall of the XB pulse, The period from the falling edge of the XA pulse to the rising edge of the XB pulse is counted as -3, and the period from the falling edge of the XA pulse to the rising edge of the XB pulse is counted as -4.

The same applies to counts below -5.

Furthermore, when the mouse 10 moves in the direction of arrow Y', the tachometer generates pulses that are 90 degrees out of phase with each other, as shown by YA and YB in FIG. The decoder 17 counts these pulses in the same way as the decoder 15.

The count values counted by the decoders I5 and 17 in this manner are sent to the display device via a cable as a cursor movement signal, and the mouse cursor is moved in accordance with the count values. That is, as shown in FIG. 5(e), the mouse cursor 19 displayed on the display screen l8 of the display device moves on the display screen 18 in accordance with the direction and amount of movement of the mouse 10 on the desk surface. For example, the mouse cursor 19 in FIG. 5) moves and is displayed inside the window 20.

For example, when button 13 of mouse 10 is pressed,
A mouse select signal specifying a range on the display screen is sent, data can be input from the keyboard from the position of the mouse cursor 19, and the data input from the keyboard is displayed in the window 20. Then, when the mouse cursor 19 is positioned on the mouse menu and the button 12 of the mouse 10 is pressed, a mouse select signal specifying the mouse menu is sent, the mouse menu specified by the mouse cursor 19 is selected, and input is made from the keyboard. The data is processed. [Problem to be solved by the invention] The mouse 10 is placed on the desk separately from the keyboard, and when the operator is inputting data manually from the keyboard,
The operator may unconsciously move the mouse 10 or another person may move the mouse 10 without paying attention to the mouse 10, and a cursor movement signal may be sent by mistake.

Further, the button l2 or button 13 of the mouse 10 may also be pressed down by mistake during keyboard operation, and a mouse select signal may be sent.

As mentioned above, the cursor movement signal and mouse select signal of the mouse 10 are processed by a driver that operates separately from the application program, and therefore are processed separately from key manual processing input from a keyboard or the like.

Therefore, because the mouse 10 was moved by mistake, the
As shown in mouse cursor 19'' in f), if data is entered from the keyboard while the mouse cursor is moved outside the active window 20, the manually entered characters may not be displayed or the data may be entered in another window. Malfunctions may occur.

Furthermore, if the button l2 or button 13 of the mouse 10 is pressed by mistake, there is a problem in that a different application program that should not be started may be started.

In view of these problems, the present invention prohibits the sending of cursor movement signals and mouse select signals at the time when keyboard operation is started after the mouse 10 sends the necessary cursor movement signals and mouse select signals. The purpose is to prevent the occurrence of malfunctions.

[Means to solve the problem]

FIG. 1 is a diagram explaining the principle of the present invention.

The same reference numerals as in FIG. 5 indicate the same functions. Decoder 1
5 and 17, a cursor movement signal is sent to the blocking means 21, and from the button mechanisms 2 and 13, a mouse select signal is sent to the blocking stage 21.

When the blocking means 21 does not receive a signal from the signal sending means 22, it sends out the cursor movement signals sent by the decoders 15 and 17 and the mouse select signals sent by the buttons 12 and 13, but the signal sending means 22 sends out the signals. Then, the blocking means 21 blocks the sending of the cursor movement signal and mouse select signal.

[Effect]

With the above structure, the signal sending means 22 operates the blocking means 21 in response to an operator's operation, and prevents the mouse from sending out incorrect cursor movement signals and mouse select signals. This prevents malfunctions even if the mouse is moved or the mouse button is pressed by mistake. [Embodiment] FIG. 2 is a block diagram of a circuit showing an embodiment of the present invention.
FIG. 3 is a waveform diagram illustrating the operation of FIG. 2.

The same reference numerals as in FIG. 5 indicate the same functions. Decoder 1
5, as the mouse moves in the X direction, a count value indicating the amount of mouse movement is sent out, as explained in FIG. That is, in response to the pulses XA and XB in FIG. 3(a), the count values 1 to 9 indicating the amount of movement of the mouse in the χ direction are sequentially sent to the AND circuit 24 as shown in the count value.

Further, the decoder 17 decodes the fifth decoder as the mouse moves in the Y direction.
As explained in the figure, a count value indicating the amount of mouse movement is sent. That is, in response to the pulses YA and YB in FIG. 3(a), count values 1 to 9 indicating the amount of movement of the mouse in the Y direction are sequentially sent to the AND circuit 25 as shown in the count value. When the lock button 23 is not pressed, it is connected as shown by the solid line, and as shown in the lock button signal in FIG. 3(a),
The voltage sent from the power supply +■ is divided by resistors R and R2 and sent to AND circuits 24-27.

Therefore, as shown in the output of FIG. 3(a), the AND circuits 24 and 25 output the count values 1 to
Send 4. Also, when buttons 12 and 13 are pressed, button 1 in FIG. 3(b)
As shown in 2 (■) and button 13 (■), the voltage sent from the power supply +V is divided by resistors R1 and R2, and the respective AND circuits 2
6 and 27.

When the lock button 23 is not pressed, it is connected as shown by the solid line as described above, and as shown in the lock button signal in FIG. 3(b), the voltage sent from the power supply +V is connected to the resistors R1 and R2.
The voltage is divided by and sent to AND circuits 24-27.

Therefore, the AND circuits 26 and 27 are connected to the button l in FIG. 3(b).
As shown in output 2 and output 13, ON signals are sent to buttons 12 and 13, respectively. When the operator presses the lock button 23, the button 23 is locked in a connected state as shown by the dotted line. Therefore, A
Since the ground potential is sent to the ND circuits 24 to 27 as shown in the lock button signals in FIGS. 3(a) and 3(b), the decoder 1
As shown in the output of FIG. 3(a), for example, as shown in the output of FIG. In addition, the outputs of the buttons l2 and 13 are as shown in the button 12 output and the button l3 output in FIG. Not sent.

FIG. 4 is a diagram illustrating an example of a mouse to which the present invention is applied.

FIG. 4(a) is a side view showing the ball 11 of the mouse 10.
is provided at the bottom of the mouse 10 so as to rotate on the desk,
8012 and 13 are provided at positions that are easy to press down with the operator's fingers. The lock i23 is provided on the side as shown in the figure so that it can be easily pressed down by the operator's right thumb, for example, and after the desired cursor movement signal and mouse select signal are sent from the mouse 10, the lock button 23 is pressed down. By doing so, until the lock button 23 is released from the locked state,
This prevents further cursor movement signals and mouse select signals from being sent.

〔Effect of the invention〕

As explained above, the present invention prevents a personal computer, workstation, etc. from malfunctioning due to the mouse being accidentally moved or a mouse button being pressed while inputting data from the keyboard. Can be done.

[Brief explanation of drawings]

Fig. 1 is a diagram explaining the principle of the present invention, Fig. 2 is a block diagram of a circuit showing an embodiment of the present invention, Fig. 3 is a waveform diagram explaining the operation of Fig. 2, and Fig. 4 is a diagram of the present invention. FIG. 5 is a diagram illustrating an example of a mouse to which the invention is applied, and FIG. 5 is a diagram illustrating an example of the prior art. In the figure, 10 is a mouse, 11 is a ball, 12. 13
is the button, 14.16 is the axis, 15, 1.7 is the decoder, 18 is the display screen, 19 is the mouse cursor, 20
21 is a window, 21 is a blocking means, 22 is a signal sending means, 23 is a lock button, and 24 to 27 are AND circuits. Figure 1: A block diagram of the circuit showing the one-stroke addition fII of Keishi Akira. Figure 2 (α (b)). Figure 3 (α) (b) Figure 4 of a mouse to which heathering has been applied. Figure 5 (Zone 1) (C) (d) Figure 5 (Zone 1) (C) (d) Figure 5 (Zone 1) (C) (d) Figure 5 (Zone 1) Figure 5 (2-3)

Claims (1)

[Claims] By moving the mouse cursor on a plane, a cursor movement signal is sent to move the mouse cursor on the display screen, and by pressing buttons (12) and (13), the range of the display area of the display screen is transmitted. A mouse that sends out a mouse select signal for specifying a cursor movement signal and a mouse menu, includes a blocking means (21) for blocking the sending of the cursor movement signal and the mouse select signal, and a signal for operating the blocking means (21). A signal transmitting means (22) is provided to transmit the desired cursor movement signal and mouse select signal, and after the mouse transmits the desired cursor movement signal and mouse select signal, the blocking means (21) prevents the transmission of the cursor movement signal and mouse select signal. A malfunction prevention circuit for a mouse, characterized in that the circuit is configured to prevent malfunctions of a mouse.