JPH03250208A - Coordinate input device - Google Patents

Abstract

PURPOSE:To enable positioning with high accuracy by changing a coordinate moving amount while replacing pressure impressed by a finger, etc., with the change of an oscillation frequency. CONSTITUTION:Resistors 15a and 15b are provided to change resistance values while being interlocked with the impressed pressure at the time of an operation, and oscillating circuits 9a and 9b utilizing the resistors 15a and 15b are provided. The coordinate moving amount is changed according to the outputs of the oscillation circuits 9a and 9b which oscillation frequencies are changed with the changes in the resistance values of the resistors 15a and 15b. Therefore, with the change in the pressure caused by a hand (a finger) at the time of the operation, the resistance value of the resistors 15a and 15b are changed, the oscillation frequencies as the oscillation outputs of the oscillation circuits 9a and 9b are changed and the coordinate moving amount per time is changed. Thus, time for moving a coordinate value is shortened and further, positioning is enabled with high accuracy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coordinate input device for controlling the position of a mechanical device or obtaining cursor coordinates of a computer or the like.

[Conventional technology]

FIG. 11 (al is a block diagram of a conventional mouse-type three-dimensional coordinate input device disclosed in, for example, Japanese Utility Model Application Publication No. 63-135433; in the figure, 1 and 2 are push button switches for generating control signals; 3 is a seesaw-shaped Z-axis coordinate switch; 7 is a sphere for detecting the amount of movement of plane coordinates constituted by the X-axis and Y-axis.

FIG. 11 (bl is a side view of the whole, and FIG. 11 (C) is a perspective view showing the schematic structure of the switch 3, which has contact mechanisms SWI and SW2 at both ends that are operated by pushing down. The figure is a block diagram showing the configuration of a conventional mouse-type three-dimensional coordinate input device. 4 is a pulse oscillator that generates the amount of movement of the Z-axis coordinate per unit time, and is connected to the Z-axis coordinate input switch 3. 5 and 6 are each X
This is a Y-axis rotary encoder, and although not particularly shown in the figure, it is attached in contact with the sphere 7 so that its rotation axis is perpendicular to the plane.

To explain this operation, by pressing the pushbutton switch 1.2, three types of status signals are given to the external device depending on the pressed combination, and one status signal among the three types is the coordinate It is used as a command signal for an external device to capture a point. The pulse oscillator 4 always oscillates at a constant frequency, and the two-axis coordinate input switch 3
By pressing , the destination is changed by the contact mechanism SWI or SW2, and when the contact mechanism SWI is closed, a pulse waveform signal is output as an increase signal of the Z-axis coordinate, and the contact mechanism S
When W2 is closed, a pulse waveform signal is output as a Z-axis coordinate decrease signal.

The X-axis rotary encoder 5 and the Y-axis rotary encoder 6 control the rotation of the sphere 7 when the mouse moves and the sphere 7 rotates.
It outputs the number of pulses corresponding to the rotation angle of the X and Y components, that is, the amount of movement in the X-axis and Y-axis directions, and also determines the increasing or decreasing direction of the X-axis and Y-axis coordinates and outputs the required output.

Also, Fig. 10(al) and (b) are, for example,
This is a main part configuration diagram of a conventional joystick type coordinate input device shown in Publication No. 040. In the figure, 21 is a control handle, and 22a to 22d are switches arranged at positions corresponding to four directions: front, back, left, and right. . 2 in Figure 10(b)
3 is an elastic body that keeps the control handle 21 in a neutral position, and 24 is a case that houses the entire device.

To explain this operation, by tilting the control handle 21 in any direction from the neutral position, if the switch disposed in that direction, for example, the switch 22a, is tilted, the switch 7-ch 22a The lower end of the control handle 21 is pressed down to issue a contact signal. When the control handle 21 is moved in the intermediate direction of the switches, for example, in the intermediate direction between the switches 22a and 22c, the switches 22a and 22C are simultaneously pressed down at the lower ends of the control handle 21, and the switches 22a and 22c simultaneously output contact signals. In this case, direction signals in a total of eight directions are output as a combination of four contact signals depending on the direction of inclination of the control handle 21.

[Problem to be solved by the invention]

Conventional coordinate input devices are configured as described above, so the input amount of coordinate values per unit time is constant, increasing the coordinate positioning accuracy increases the travel time, and decreasing the travel time increases the positioning accuracy. The problem was that it got worse.

Furthermore, conventional joystick devices cannot output direction signals other than eight directions, and cannot obtain arbitrary direction vector signals on the xy plane.

Furthermore, the control handle of the conventional joystick device protrudes upward to take up the storage volume of the device.

By the way, in recent years, personal computers have become smaller and lighter, and so-called portable personal computers that are driven by discrete devices have come into widespread use. The current consumption of devices (called mice) has become a problem. In particular, reducing current consumption is an important issue in optical mice that use LEDs that consume large amounts of current, and mice that use optical encoders.

On the other hand, a technology called auto power-off is commonly used in portable electronic desk calculators, and it is conceivable to apply this technology to mice.

This auto power off function monitors the operation status of the input keys, and when no input signal is issued by the input keys for a certain period of time, the power to the display unit that consumes the most current is turned off, and the next The input key is not activated until the input key operation is completed.
The system monitors only the input signal from the input key, and turns on the power to the display when the input signal is generated by the input key. This is an excellent method that does not cause any problems.

On the other hand, when operating a mouse, the mouse must first be moved on a plane, and then the input keys must be operated. You must operate the input key every time,
If you forget to press the input key and move the mouse, the cursor on the CRT may not move even though the mouse is moving, resulting in extremely poor usability.

The present invention was made to solve the above-mentioned problems, and an object of the present invention is to provide a coordinate input device that can shorten the movement time of coordinate values and can perform highly accurate positioning.

Another object of the present invention is to obtain a coordinate input device that can also output a direction signal as an arbitrary variable length vector on a plane, if necessary.

Furthermore, it is an object of the present invention to provide a coordinate input device that can be operated in the same way as conventional coordinate input devices and that can reduce current consumption when not in use.

[Means to solve the problem]

A coordinate input device according to a first aspect of the present invention includes a resistor 15a15b whose resistance value changes in conjunction with applied pressure during operation, and oscillation circuits 9a and 9b using the resistors 15a and 15b. 15a.

The coordinate movement amount is changed by the outputs of the oscillation circuits 9a and 9b whose oscillation frequency changes according to a change in the resistance value of the oscillator 15b.

The coordinate input device according to the second invention includes a handle 21 that freely tilts and moves in two independent axial directions on a plane during operation;
It is equipped with a resistor 30a whose resistance value changes in conjunction with the pressure applied to the handle 21, and oscillation circuits 26a to 26d that perform an oscillation operation using the resistor 30a.
The coordinate movement amount is changed by the output of the oscillation circuits 26a to 26d whose oscillation frequency changes according to a change in the resistance value of 0a.

The coordinate input device according to the third invention includes a contact detection means 105 including an induction electrode 104 for detecting the contact of an operator's hand during operation, and turns on the power of the device based on the output of the contact detection means 105. It is configured to open and close.

[Effect]

In the first invention, the resistance values of the resistors 15a and 15b change due to changes in the pressure applied by the hand (finger) during operation, which changes the oscillation frequency of the oscillation output of the oscillation circuits 9a and 9b, and the The amount of coordinate movement changes.

In the second invention, when the handle 21 is tilted and moved during operation, the resistance value of the resistor 30a changes depending on the tilt direction, thereby changing the oscillation frequency of the oscillation output of the oscillation circuits 26a to 26d. The amount of coordinate movement per time in two independent axial directions changes.

In the third invention, when a hand touches the induction electrode 104 during operation, the contact detection means 105 detects the touch of the hand, acts to open (turn on) the power of the device, and the hand is removed from the induction electrode 104. It acts to close (turn off) the power supply.

〔Example〕

FIG. 1(a), (bl, (C1) is a block diagram showing a configuration diagram of a coordinate input device according to an embodiment of the first invention.

In Fig. 1, 1.2 is a push button switch for generating control signals, 5 is an X-axis rotary encoder for inputting X-axis coordinates, 6 is a Y-axis rotary encoder for inputting Y-axis coordinates, 9a, 9b are CR oscillation circuits for Z-axis coordinate input, and are used for increasing the Z-axis coordinate and decreasing the Z-axis coordinate.

10a and 10b are pressure-sensitive resistor switches using pressure-sensitive resistors as electrodes, lla and llb are capacitors with one end connected to the pressure-sensitive resistor switches 10a and 10b and the other end grounded, and 12a and 12b. The output end is connected to the pressure sensitive resistor switch IOa, 10b, and the input end is connected to the pressure sensitive resistor switch IOa.

10b and capacitor 113. This is a Schmitt circuit connected to the connection point of Ilb.

FIG. 2(a) shows the structure of the Z-axis coordinate switch 3. In the figure, 8 is a key top with a protrusion that serves as a fulcrum at the bottom, 13 is a substrate, and 14a.

14b is an elastic body provided in contact with the key top 8 and the substrate 13; 15a and 15b are pressure sensitive resistors provided on the key top 8 as intermediate electrodes of the switch; 16a and 16b
is a first electrode 17a forming one electrode of a switch provided on the substrate 13;

17b is a second electrode provided on the substrate 13 facing the first electrodes 16a, 16b, and includes a pressure sensitive resistor 15a,
15b and the first electrode 16a, 16b and the second electrode 17a
, 17b are each one set of pressure sensitive resistor switches 10a, 1.
Configure 0b.

Figure 2 (BL is a top view showing the external appearance of this embodiment, Figure 2 (C1 is a side view thereof, and in the figure, 1. 2 is a push button switch, 3 is a Z-axis coordinate switch, and 7 is an X-axis coordinate switch. This is a sphere for detecting the amount of movement in plane coordinates formed by the Y-axis.

Next, the operation will be explained. In FIG. 1, pushbutton switch 1.2 and X-axis rotary encoder 5
The functions and operations of the Y-axis rotary encoder 60 and Y-axis rotary encoder 60 are the same as those of the conventional example, and will therefore be omitted. The Z-axis coordinate signal portion will be explained below.

In FIG. 1, when the pressure sensitive resistor switch lOa is pressed down with a pressure above a certain level, the pressure sensitive resistor 15a has a certain resistance value according to the pressure and is connected to the circuit, forming an integral constant with the capacitor 112. In order to thereby regulate the operation of the Schmitt circuit 12a, the Schmitt circuit 12a operates as a CR oscillation circuit 9a that outputs a rectangular wave at a frequency corresponding to the integral constant. Here, when the pressure to press the pressure-sensitive resistor switch IOa is changed, the resistance value of the pressure-sensitive resistor 15a changes to a value corresponding to the pressure, and the integral constant also changes, so the CR oscillation circuit 11r9a can set an arbitrary oscillation frequency. Therefore, the Z-axis coordinate increase signal is also output at an arbitrary frequency. That is, the Z-axis coordinate increases at an arbitrary speed.

Next, the operation of the CR oscillation circuit 9b is the same as that of the CR oscillation circuit 9a, except that the output of the CR oscillation circuit 9b is used as a decrease signal for the Z-axis coordinate, and the operation of the CR oscillation circuit 9b is the same as that of the CR oscillation circuit 9a. Outputs a decreasing signal of the Z-axis coordinate at an oscillation frequency according to the pressure.

Next, the operation of the pressure sensitive resistor switches 10a and 10b will be explained in detail. In FIG. 2(a), when the key top 8 of the Z-axis coordinate switch 3 is not pressed, the key top 8 is an elastic body 14a.

Because it is supported by 14b, it is in a neutral state,
When the end of the key top 8 where the pressure sensitive resistor 15a is placed is pressed, the pressure sensitive resistor 15a is lowered and the first electrode 16a and second electrode 17a provided on the substrate 13 are connected to the pressure sensitive resistor. The pressure sensitive resistor 15a has a resistance value that corresponds to the pressing force, and the pressure sensitive resistor switch 10a has a resistance value that corresponds to the pressing force rather than an infinite resistance value. Next, when the other end of the key top 8, that is, the end where the pressure-sensitive resistor 15b is provided, is pressed, the pressure-sensitive resistor switch 10b responds to the pressing force with an infinite resistance value. It becomes the resistance value.

Note that in the above embodiment, the pressure sensitive resistor 15a.

A pressure sensitive resistor switch 10a using 15b as an electrode.

10b was used to change the oscillation frequency of the CR oscillation circuits 9a and 9b, but even if a seesaw type variable resistor is used, the same effect can be obtained except for the disadvantage that the downward stroke is relatively long. I can do it.

Furthermore, although the configuration of the CR oscillation circuits 9a and 9b has been shown to be a voltage integration type using Schmitt circuits 12a and 12b,
As long as the oscillation circuit is a current integration type CR oscillation circuit,
It may be a differential type CR oscillation circuit or a phase shift type CR oscillation circuit.

Next, an embodiment according to the second invention will be described.

Figure 3 (in al, 258 to 25d are the 4 front, rear, left and right
26a to 26d are oscillation circuits whose oscillation frequencies are controlled by the pressure sensitive resistor switches 252 to 25d, and 27a to 27d are oscillation circuits 26a. A drive circuit 28a to 28d converts the outputs of 26d to contact signals, and 28a to 28d are contact output signals corresponding to four directions: front, back, left, and right.

FIG. 3 Q)l shows a detailed circuit example of the one-way signal among the above, and in the figure, the pressure sensitive resistor 30a and the switch 29a
is an integral type oscillation circuit 2 consisting of operational amplifiers 31a and 35a.
6a. Further, the diode 39a, the resistor 40a, and the NPN I-transistor 38a constitute a drive circuit 27a.

Figure 4 shows a second circuit incorporating the variable resistor and oscillation circuit shown in Figure 3.
In Figure 0, which is a configuration diagram of the coordinate input device according to the invention, 21 is a control handle 43a on a disk having a projection for limiting sedimentation in the center.

43b is a pressure-sensitive resistor switch 25a, 25 attached to the control handle 21 and corresponding to the front and rear directions, respectively.
A pressure-sensitive resistor is a component of b, 41 is a circuit board and a circuit board which forms the mechanical reference of the joystick device, 42 is a cylindrical elastic body provided between the control handle 21 and the board 41, and the control handle By pushing upward on control handle 21, control handle 21 is held in a neutral position.

44a, 44b are electrodes forming one electrode of the pressure sensitive resistor switches 25a, 25b provided on the substrate 41; The electrode 44a constitutes the other electrode.

44b and the electrodes 45a, 45b are provided opposite to the pressure sensitive resistors 43a, 43b attached to the control handle 21 with a space in between. 46 is a circuit element that is attached to the lower surface of the substrate 41 and constitutes a circuit of the joystick device, and 24 is a case that accommodates the joystick device.

In FIG. 4(b), 25a to 25d are pressure sensitive resistor switches provided at positions corresponding to four directions: front, rear, left, and right.

This operation will be explained.

In FIG. 4(a), (bl), when an arbitrary outer peripheral part of the control handle 21, for example, a portion corresponding to the position of the pressure-sensitive resistor switch 25a in FIG. 4(bl) is pressed, an elastic body near the pressed part 42 is compressed, and the pressure-sensitive resistor 43a is lowered together with the control handle 21, connecting the electrode 44a and the electrode 45a via the pressure-sensitive resistor 43a, and changing the resistance value according to the pressing pressure at that time to the pressure-sensitive resistor switch 25a. In other words, the electrodes 44a, 45a and the pressure-sensitive resistor 43a constitute a pressure-sensitive resistor switch 25a.

Further, any outer peripheral portion of the control handle 21 to be pressed may be, for example, the pressure sensitive resistor switch 2 in FIG. 4(b).
5a and the pressure sensitive resistor switch 25c will be described. Since the control handle 21 descends centering on the middle part between the pressure-sensitive resistor switch 25a and the pressure-sensitive resistor switch 25c, the pressing pressure is lower than the pressure-sensitive resistor switch 2.
5a and pressure-sensitive resistor switch 25c, each pressure is applied to each pressure-sensitive resistor switch 25c.
It is distributed in proportion to the reciprocal of the distance to a and 25c.

That is, each component of the force vector is obtained at the pressure-sensitive resistor switches 25a and 25c, which are arranged with a 90'' offset, and the direction of the resultant vector indicates the pressed position.The resistance corresponds to the pressing pressure. The value of each pressure-sensitive resistor switch 25
a, 25c.

In FIG. 3, the change in the oscillation frequency after each resistance value changes is the same as that described in FIG. Obtained as 28c.

In the above embodiment, the pressure sensitive resistors 432 to 43d are provided as intermediate electrodes of the pressure sensitive resistor switches 25a to 25d, but the pressure sensitive resistors 43a are attached to any electrode of the switches 25a to 25d. .about.43d may be provided as pressure-sensitive resistor switches 25a-25(i), or pressure-sensitive resistors may be provided on a plurality of electrodes.

Further, in the above embodiment, the oscillation circuits 26a to 26d use integral type oscillation circuits, but other C
An R oscillation circuit may also be used.

Next, an embodiment according to the third invention will be described.

FIG. 5 is a block diagram showing the configuration of a mouse-type coordinate input device according to an embodiment of the third invention. In Figure 5,
The mouse circuit 109 generates two-phase signals XA, X, and YA, Yl corresponding to the X-axis and Y-axis directions by moving the mouse, converts the two-phase signal itself or the two-phase symbol into a serial signal, and calculates the cursor coordinates. This is output as the amount of movement.

The contact detection means 105 includes an induction electrode 104 for detecting the contact of the operator's hand during operation, resistors R, , R, diodes DI, D2, and a capacitor C1. The resistor R1 is a diode D whose other end is grounded as an anode.
, and the anode of diode D2. The cathode of the diode D20 is connected to one end of the capacitor C3, which has one end grounded, and is also connected to one end of the resistor R2. The other end of the resistor R2 serves as an output end of the contact detection means 105. The movement detection means 110 is
Capacitor Cz, Cs, diode D1, D4, resistor R
1, etc., and detects the movement of the mouse. In this movement detecting means 110, two-phase body numbers XA, Xm, Ys are input from the mouse circuit 109.

For example, the signal XA is input through a capacitor C3, and the capacitor C3 is connected to the cathode of a diode D whose anode is grounded and the anode of a diode D4, and the cathode of the diode D4 is The other end of the capacitor C2 whose end is grounded is connected to one end of a resistor R3, and the other end of the resistor R3 serves as an output end of the movement detecting means 110. In addition,
The circuit configurations for the other signals X m, Y a, and Y m are completely the same as the circuit configuration for the signal X, and are therefore omitted from the diagram. The power supply opening/closing means 106 is N
PN i-rangimeta 10f, PNP transistor 10
8 and a resistor R4, which opens and closes the power supply. In this power supply opening/closing means 106, a contact detection means 1 is connected to the base of an NPN transistor 107 whose emitter is grounded.
05 and the output of the movement detection means 110 are connected, and N
The collector of the PN transistor 107 is connected via a resistor R4 to the base of a PNP transistor 108 whose emitter is connected to the power supply input terminal, and the collector of the PNP transistor 108 is connected to the power supply wiring of the mouse circuit 109.

FIG. 6 is an external view of the mouse, where 101 is the mouse, 1
02 is an input/output cable, 103a and 103b are key switches, and 104 is an induction electrode made of a conductive material provided on a part of the side surface of the casing of the mouse 101.

FIG. 7 shows an example in which the induction electrode 104 is disposed on the entire lower side surface of the mouse 101.

Note that the induction electrode 104 may be provided at any location that is touched by the hand when operating the mouse 101.
It may be provided in the entire casing of 1.

Next, the operation of this embodiment will be explained.

When operating the mouse 101 in FIG. 6, the operator places his/her hand with the cape 102 facing forward and wraps around the mouse 101, and places the second and third fingers on the key switches 103a and 103b, respectively. When the user moves the mouse 101 , a part of the hand always comes into contact with the induction electrode 104 .

In normal indoor use, electrostatic induced voltage from electric light lines etc. is applied to the human body, so when a part of the human body comes into contact with the induction electrode 104, the induced voltage is applied to the induction electrode 104. will be applied.

Continuing the explanation with reference to FIG. 5, in the contact detection means 105, the induced voltage applied to the induction electrode 104 is current-limited through the resistor R7 and sent to the diodes D+ and Dz for half-wave rectification, and then the induced voltage is sent to the diodes D+ and Dz for half-wave rectification. The signal is smoothed through and input to the power supply switching means 106. In the power supply opening/closing means 106, the base current is supplied to the NPN transistor 107, so the transistor 107 becomes conductive, and the base current of the transistor 108 flows through the resistor R4, so the PNP transistor 108 becomes conductive and supplies the power supply voltage to the mouse circuit 109. The mouse circuit 109 is activated.

Next, when the mouse 101 is moved, the mouse circuit 109 sends the movement amount output to the personal computer, but at this time, the mouse circuit 109 uses a two-phase system XA corresponding to the X axis and the Y axis.

X□, YA, and Y□ are changed between high level and low level. Therefore, the movement detecting means 110, for example, connects the signal XA to the capacitor C3 and the diode D3. Since the base current of the NPN transistor 107 of the power switching means 106 is supplied by rectifying it after differentiation through D4 and smoothing it through the capacitor C2 and resistor R3, the relatively unstable induced voltage is reduced and the contact detection means 105 However, even if the base current cannot be supplied to the NPN transistor 1070 of the power supply opening/closing means 106, if the mouse 101 starts moving, the power supply opening/closing means 106 opens the electric circuit and the mouse circuit 1
The operation of 09 will not be stopped.

In short, the movement detecting means 110 helps the contact detecting means 105 to continue activation, which tends to become unstable, and together with the contact detecting means 105, the power opening/closing means 106 when not in use.
to stop the operation of the mouse 101. Incidentally, the capacitor C2 and the resistor R3 are normally connected so that the power supply opening/closing means 106 does not open the electric circuit even after the movement of the mouse 101 is stopped and before the next movement of the mouse 101 starts.
Choose a time constant of several tens of seconds.

Note that in the above embodiment of the third invention, the contact detection means 105 and the movement detection means 110 provided in the mouse 101 were configured to drive the power supply opening/closing means 106; Alternatively, only the contact detection means 105 may be provided, and the others may be provided on the personal computer side.

Such another embodiment will be explained with reference to FIG. In FIG. 8, 105 is a contact detection means provided within the mouse. In this contact detection means 105, 104 is an induction electrode, 111 is a gate connected to the induction electrode 104 through a resistor R,
It is a thyristor element whose anode is connected to the power supply return path of the mouse circuit 109 and whose cathode is connected to ground, and a diode D and a resistor R5 are connected between the gate and ground. When a hand touches the induction electrode 104 to operate the mouse 101 and a voltage is induced in the induction electrode 104, a gate current flows to the gate of the thyristor element 111 via the resistor R1, so the thyristor element 111 is ignited. and mouse circuit 1
09 is grounded, and the mouse circuit 109 is activated. Note that the diode D+ prevents a reverse voltage from being applied to the gate of the thyristor element 111, and the resistor R9 is used to set the dark value of the gate current.

Next, the means installed in the personal computer 123 will be explained. 106 is a power supply opening/closing means. In this power supply opening/closing means 106, NP 107 has an emitter grounded and a base current normally supplied from instantaneous interruption pulse generation means 121, which will be described later, through a resistor R6 to the base.
(10B is an NPN transistor) The base is connected to the collector of the transistor 107 via a resistor R4, the emitter is connected to the power supply 122 via a current detection resistor 113 (described later), and the collector is connected to the power input of the mouse circuit 109. PNP ) is a transistor. The power switching means 106 as a whole operates as a switch that interrupts the power supply only when the momentary interruption pulse generating means 121 operates and interrupts the current flowing through the resistor R6. 112 is a motion detection means. In this operation detection means 112, 113 is a current detection resistor, and the PN of the power supply 122 and the power supply opening/closing means 106 is
It is inserted between the emitters of the P l-transistor 108 . Further, 114 has an emitter connected to the power supply 122, a base connected to the connection end between the current detection resistor 113 and the emitter of the PNP I-transistor 108 via a resistor R1, and a collector grounded via a resistor R8 as an output. PNP
) is a transistor. The operation detection means 112 as a whole detects when the mouse circuit 109 is started and starts consuming current with the current detection resistor 113, and the PNP transistor 1
By making the mouse circuit 14 conductive, the output is maintained at the potential of the power supply 122 throughout the operation period of the mouse circuit 109. Reference numeral 115 denotes a rise delay means consisting of a logical product of delay and non-delay, which delays the output of the motion detection means 112 when it rises, and immediately sends it as a control signal to the movement amount receiving means 116 when it falls. Move! The receiving means 116 is a mouse
109 is received, and the movement amount is sent to the next stage under the control of the operating signal of the motion detection means 112 inputted through the rise delay means 115.

117 is a cursor coordinate setting means that receives the movement amount from the movement amount receiving means 116 and adds it to the current cursor coordinates to create new cursor coordinates, and 118 displays the output of the cursor coordinate setting means 117 on a CRT or the like. It is a display means for Reference numeral 119 is an O value detection means connected to the movement amount receiving means 116 and configured by a logical sum between bits of the signal, and starts the operation of the timer means 120 when the movement amount takes a value of 0. By resetting the timer means 120 other than the value, the timer means 120 is made to output an output when the mouse 101 is not moved for a certain period of time, for example, one minute. Reference numeral 121 denotes an instantaneous interruption pulse generating means driven by the timer means 120, which has a mono/multi structure to keep the output at a low level for a time sufficient to extinguish the cyrisk element 111 of the contact detection means 105, for example, for 10 minutes. and when the timer means 120 outputs an output, the NPN transistor 107 supplies the voltage through the resistor R5 of the source switching means 106.
By reducing the base current of the power supply switching means 106
For example, by keeping the mouse circuit 109 in a closed state during loLIO, the mouse circuit 109 is stopped and the contact detection means 105 is
The thyristor element 111 of the mouse 101 is extinguished to prevent the mouse 101 from being activated again when the operator is not touching the mouse 101. On the other hand, the operation detection means 112 detects that the power supply switching means 10
6 is in the closed state and power supply current no longer flows through the mouse circuit 109, the operation of the movement amount receiving means 116 is immediately stopped through the rise delay means 115, and the operation of the movement amount receiving means 116 is immediately stopped to prevent the movement of the mouse circuit 109 that may occur when the power is turned off. It acts to prevent erroneous movement amount output from being received.

FIG. 9 shows the transistor 124 and the NPN transistor 111 in the contact detection means 105 in FIG.
The transistor 125 compensates for the disadvantage of the thyristor element, which has a relatively large variation in its operating range, by replacing it with a transistor.

By providing only the contact detection means 105 in the mouse 101 as described above, it is only necessary to add a small amount of circuitry to the mouse 101, and a part of the calculation means of the personal computer 123 can be used as the movement detection means 110. Further, there is an effect that fine control such as preventing the movement of the cursor by one dot that may occur due to activation or deactivation of the mouse circuit 109 is possible.

Note that if a microcomputer with low power consumption is installed in the mouse 101, it is possible to perform exactly the same movement detection and power control processing within the mouse 101.

The features of the embodiment according to the third invention described above include a contact detection means for detecting the contact of the operator's hand, a movement detection means for detecting the movement state of the coordinate input device, and a power supply opening/closing means for opening and closing the power supply. The contact detection means and the movement detection means drive the power source opening/closing means. The contact detection means includes an induction electrode made of a conductor and a rectifier circuit disposed on a part or the whole of the coordinate input device. Further, the contact detection means detects the contact of the operator's hand and grounds the power return path in the mouse circuit, and interrupts the power return path and the ground by instantaneous interruption of the power supply. Further, the contact detection means includes an induction electrode and a cyrisk element disposed on a part or the whole of the coordinate input device. The silice element is constructed by combining a PNP transistor and an NPN transistor.

〔Effect of the invention〕

As described above, according to the first invention, since the pressure applied by a finger or the like is replaced with a change in the oscillation frequency to change the amount of coordinate movement, the amount of coordinate movement per time can be easily changed, and the coordinate value can be changed easily. The effect is that the travel time is shortened and highly accurate positioning is possible.

Further, according to the second invention, independent resistors whose resistance values change according to pressure are provided in two axial directions on a plane, and the oscillation frequency is adjusted by changing the resistance values according to each detected pressure. Since it is configured to change the amount of coordinate movement in any direction on the plane, it is possible to output a direction signal as an arbitrary variable length vector on the plane if necessary, which allows for even more precise positioning. This has the effect of making it possible.

Furthermore, according to the third invention, the power supply is configured to open and close based on the output of the contact detection means including the induction electrode that is touched by both hands during operation, so that the operation can be performed in the same manner as in the past, and there is no problem. During use, current consumption can be reduced and energy savings can be achieved.

[Brief Description of the Drawings] Figures 1 (al, (b), (C) are block diagrams of the configuration of a mouse-type three-dimensional coordinate input device that is an embodiment of the first invention, and Figures 2 (al, (c)) b), (C1 is a structural diagram of the embodiment of FIG. 1; FIGS. 3(a) and 3(b) are block diagrams of a mouse-type three-dimensional coordinate input device which is an embodiment of the second invention; Figure 4 (δ>, (bl is a structural diagram of the embodiment in Figure 2, Figure 5 is a block diagram of the configuration of a mouse-type coordinate input device that is an embodiment of the third invention, and Figure 6 is a block diagram of the structure of the embodiment in Figure 5. 7 is another external view of the coordinate input device of FIG. 5, and FIG. 8 is a block diagram of a mouse-type coordinate input device according to another embodiment of the third invention. FIG. 9 is another circuit configuration diagram of the contact detection means in the embodiment of the third invention;
Figures (al, (bl) are circuit diagrams and structural diagrams of a conventional mouse-type three-dimensional coordinate input device, Figure 11 (al, (b),
(C1 is a structural diagram of a conventional mouse-type three-dimensional coordinate input device,
FIG. 12 is a block diagram of a conventional mouse-type three-dimensional coordinate input device. 9a, 9b, 26a to 26d...Oscillation circuit, 15
a, 15b, 30a, 43a, 43b---pressure sensitive resistor, 21... control handle, 104... induction electrode, 1
05...Contact detection means, 122...Power source.

Claims (3)

[Claims] (1) A coordinate input device for inputting position coordinates and obtaining cursor coordinates by moving on a plane, which uses a resistor whose resistance value changes in conjunction with the applied pressure during operation, and oscillation using this resistor. 1. An oscillation circuit for operating the coordinate input device, and an output of the oscillation circuit whose oscillation frequency changes according to a change in the resistance value of the resistor to change the amount of coordinate movement per time. (2) In a coordinate input device for inputting position coordinates and obtaining cursor coordinates by moving on a plane, there is a handle that freely tilts and moves in two independent axes on the plane during operation, and a A resistor whose resistance value changes in conjunction with the applied pressure and an oscillation circuit that performs oscillation using this resistor are provided, and the output of the oscillation circuit whose oscillation frequency changes as the resistance value of the resistor changes changes per time. A coordinate input device characterized in that the coordinate input device is configured to change the amount of coordinate movement. (3) In a coordinate input device for inputting position coordinates and obtaining cursor coordinates by moving on a plane, a contact detection means including an inductive electrode for detecting the contact of the operator's hand during operation is provided. A coordinate input device characterized in that the power source of the device is opened and closed based on the output of the contact detection means.