JPS58201132A - Three-dimensional joy stick - Google Patents

Abstract

PURPOSE:To perform three-dimensional operation with one hand, by providing a joy stick for indicating two-dimensional coordinates with one or two button switches and an increase/decrease switch, and providing the functions for indicating coordinates and for enlarging and reducing a screen. CONSTITUTION:A joy stick mechanism part is operated with the joy stick 2 to indicate (x) and (y) coordinates. When a push button 3 fitted to the stick 2 is depressed, electrodes 5 and 6 come into contact with each other and a voltage V is passed through a differentiating circuit 11 to output a pulse V'. A positive integrating circuit 12 is driven by using the leading edge of the differential pulse V' as a trigger to generate a (z)-axis signal as a ramp function. Then when the button 3 is depressed, the integrating circuit 13 is held. When the button 3 is further depressed, a negative integrating circuit 13 is driven by using the leading edge of the V' as a trigger to decrease the (z)-axis signal and when the button 3 is operated next, the integrating circuit 13 is held. An increase or decreases is made continuously with the increase/ decrease switch 10. Two push buttons may be provided for the increase and decrease, respectively. Thus, man-machine interface is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a joystick used for display input.

Conventional devices of this kind were configured to use a spatial link mechanism to convert the position on the xy plane into electrical signals using X-axis and y-axis potentiometers to specify the position on the display. The disadvantage is that functions such as positioning and image enlargement/reduction must be provided by operating a separately prepared device with the left hand, resulting in poor operability.

In order to solve these drawbacks, the present invention adds one or two operation buttons to the joystick and provides functions such as two-axis instruction, enlargement, and reduction. The present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which 1 is a normal joystick mechanism in which a spatial link mechanism 1-rotation potentiometer is housed, 2 is a joystick part, and 3
is a push button.

Figure 2 shows an example of the internal structure of the push button 3, where 4 is a recovery spring, 5.6 is a contact, T is a power source, 8 is a resistor, and 9
is a terminal, and 1o is an increase/decrease switch.

Figure 3 is a circuit diagram, 11 is a differential circuit, 12.13 is a positive,
14 is a negative integration circuit, 14 is an addition circuit, and 15.16 is a potentiometer.

FIG. 4 shows signals from various parts of the circuit, where (a) is a waveform diagram of voltage V, (b) is a differential value of voltage V which is the output of the differentiation circuit 11, and (c) is a biaxial signal.

When K, who operates this, presses push button y3, contacts 5 and 6 are closed and voltage V is induced. The rise of the differential value -0 is used as a trigger to drive the integrating circuit 12 to generate a two-axis signal serving as a ramp function. When the push button 3 is further pressed, the integrating circuit 12 is held.

Next, when the push button 3 is pressed, the integration circuit 13 is triggered by the rise of the differential value of the voltage V÷, and the two-axis signal decreases.
The integration circuit 13 is held by the next operation of the push button 3. That is, even if the push button 3 is pressed for a certain period of time, a two-axis signal is always generated as a trigger at the moment of pressing.

The increasing speed of the two axes can be changed by increasing or decreasing the value of the potentiometers 15 and 16.

Further, an increase/decrease switch 10 (FIG. 1) may be provided to drive the increase/stop as shown by the broken line in FIG. 4 or decrease, stop, decrease, stop as shown by the dashed line.

FIG. 5 shows another embodiment of the invention. 1γ
, 18 are increase and decrease pushbuttons, respectively, and their contacts 17a, 17b and 18a, 18b are connected to the integration circuit 12, 13 in FIG. 6.

To operate this, press the increase pushbutton 17 and close the contacts 17a and 17b (Fig. 7(a)), and the increase integration circuit 12 works to increase the two-axis signal (Fig. 7(a)). C)
). Conversely, when the decrease push button 18 is pressed (Fig. 7 (
b)), the two-axis signal decreases (Fig. 7 (C1)).

The coordinates of can be specified. Also, the second axis is the enlargement of the figure.

It is also possible to instruct by replacing it with reduction.

As explained above, this invention allows you to specify three-dimensional coordinates or enlarge a two-dimensional coordinate image using a single joystick.
Since reduction instructions can be easily operated, we hope to improve the human-machine interface in the future development of various image processing techniques.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the device of the present invention, and FIG.
The figure is an enlarged view of the push button part in Figure 1, Figure 3 is the same circuit diagram, and Figure 4 is the same waveform diagram of the main part for explaining the operation.
FIG. 5 is a perspective view showing another embodiment of the present invention, FIG.
FIG. 7 is a circuit diagram of the embodiment shown in FIG. 5 and a waveform diagram of essential parts for explaining the operation. In the figure, 1 is the joystick mechanism, 2 is the joystick, 3 is a push button, 4 is a recovery spring, 5 and 6 are contacts, 7 is a power source, 8 is a resistor, 9 is a terminal, 10 is a switch, and 11 is a differential The circuits 12 and 13 are an integrating circuit, 14 is an adder circuit, and 15 and 16 are potentiometers. Figure 1

Claims (1)

[Claims] A three-dimensional joystick capable of instructing XvY coordinates, characterized in that it is provided with one or two additional push switches that provide an instruction function such as instructing the coordinates or enlarging or reducing a figure.