JPH0659796A - Input device - Google Patents

Abstract

PURPOSE:To detect plural parameters in real time from one operation and to input it at the side of a control circuit by allowing a position detection means to detect the coordinate position of a depression position and allowing a pressure detection means integrated with the position detection means to detect the pressure. CONSTITUTION:When an upper insulated substrate 1 is depressed by a finger or other control unit, a position detection means 9 having a matrix electrode structure detects the depression position (X and Y coordinates). A pressure detection means 10 integrated with the means 9 detects the pressing power at the position of depression. In short, when the upper insulated substrate 1 is depressed by the finger or the like, a pressure sensitive rubber sheet 6 is also depressed. The resistance value is in proportion to the pressing power and the pressing power in the Z direction of the pressing position can be detected through upper and lower electrodes 5 and 7. Thus, two data, that is, position data and pressure data can be inputted with one depression operation. Based on these data, plural parameters can be controlled in the real time. For example, it can be adopted to electronic instrument.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input device for detecting and inputting a plurality of parameters such as position information and pressure information to various electronic devices.

[0002]

2. Description of the Related Art A coordinate input device is used as a means for inputting data to a computer. This coordinate input device is configured by arranging strip-shaped electrodes, which are orthogonal to each other, in a matrix on opposing surfaces of a pair of substrates that are arranged to face each other. Is detected.

On the other hand, in the field of electronic musical instruments in recent years, a physical tone generator circuit has been developed which produces electronic sounds similar to natural musical instruments using electronic circuits. Such an electronic circuit is disclosed in, for example, Japanese Patent Laid-Open No. 3-192395. In this physical sound source circuit, for example, when creating an electronic sound similar to that of a stringed instrument, various musical tone parameters are controlled based on the information corresponding to the bow pressure and the information corresponding to the bow velocity to create the electronic sound. Therefore, it is necessary to input a plurality of parameters to the circuit at the same time. Therefore, there is a demand for an input device capable of reliably and simultaneously inputting a plurality of data corresponding to speed and pressure in real time.

[0004]

However, in the conventional input device, only one parameter, for example, the coordinate position is detected and this data is input to the control circuit side, and the contact pressure accompanying this position detection is detected. No input device has been developed yet for simultaneously detecting the same with one device. Therefore, as an input device of the physical tone generator circuit of the electronic musical instrument,
An input device that can reliably input two parameters from one operation, for example, pressure and velocity data corresponding to the bow pressure and the bow velocity in real time as described above, has not been realized.

The present invention has been made in view of the above points, and an object thereof is to provide an input device capable of detecting a plurality of parameters in real time from one operation and inputting them to the control circuit side.

[0006]

In order to achieve the above-mentioned object, an input device according to the present invention comprises a position detecting means for detecting the coordinates of the pressed position by applying a pressing force, and an integrated unit with this position detecting means. And a pressure detection means for detecting the pressing force.

[0007]

Function: The position data is detected by pressing the input panel surface of the touch panel or digitizer type position detecting means, and the pressing force is detected in real time by the pressure detecting means.

[0008]

1 is a perspective view showing the construction of an input device according to a first embodiment of the present invention. A plurality of strip electrodes 2 are provided on the lower surface of an insulating substrate 1 made of a polyester film or the like. An insulating substrate 4 also made of a polyester film or the like is provided so as to face the substrate 1. This insulating substrate 4
A plurality of strip electrodes 3 arranged in a matrix at orthogonal positions facing the strip electrodes 2 are provided on the upper surface of the. The insulating substrates 1 and 4 are arranged to face each other with a slight gap formed between the electrodes 2 and 3. When the upper insulating substrate 1 is pressed with a finger or an operator such as an electronic pen, the electrodes above and below the pressed position come into contact with each other, and an electric signal corresponding to the position is obtained to detect the pressed position. Therefore, the upper and lower insulating substrates 1 and 4 and the counter electrodes 2 and 3 constitute the position detecting means 9.

A plurality of strip-shaped electrodes 5 for pressure detection are formed on the lower surface of the lower insulating substrate 4. A pressure sensitive rubber sheet 6 whose resistance changes according to pressure is provided below the electrode 5. Below the pressure-sensitive rubber sheet 6, a substrate 8 having an electrode 7 orthogonal to the electrode 5 is provided. As described above, when the upper insulating substrate 1 is pressed with a finger or the like, the pressure-sensitive rubber sheet 6 at that position is pressed to have a resistance value corresponding to the pressing force, and the pressing position is obtained via the upper and lower electrodes 5 and 7. The pressing force of is detected. Therefore, the pressure detecting means 1 is composed of the electrodes 5, 7, the pressure-sensitive rubber sheet 6, and the substrate 8.
0 is configured.

In the input device having such a structure, when the upper insulating substrate 1 is pressed by a finger or another operator, the pressing position (X, Y coordinates) is detected by the position detecting means 9 having a matrix electrode structure. The pressure-sensitive rubber sheet 6 detects the pressing force in the Z direction at that position.
By inputting these two detection signals to the electronic device side, two data, that is, position data and pressure data can be obtained from one pressing operation, and various controls can be performed in real time based on these data. .

The input device having such a configuration is applied to, for example, an electronic musical instrument, and various musical tone parameters (pitch, tone color, tremolo, depth and speed of vibrato, depth of reverb, P
AN, PCM and FM weighting, volume balance, and key scaling such as volume and pitch) can be controlled in real time.

Further, it can be connected to a physical tone generator circuit of an electronic musical instrument to control various musical tone parameters and can be used as an input means of velocity data and pressure data for producing an electronic tone.

FIG. 2 is a block diagram of an input device according to the second embodiment of the present invention. The lower surface of the position detecting means 9 having the same structure as that of the first embodiment is supported by four piezoelectric elements 11. In such a configuration, if the upper surface of the position detecting means 9 is pressed with a finger or the like, the pressing position (X, Y coordinates) is detected by the position detecting means 9, and the position is detected by the four piezoelectric elements 11. The pressing force in the Z direction is detected as the sum of the detected pressing forces of the four piezoelectric elements 11.

FIG. 3 is a block diagram of an input device according to the third embodiment of the present invention. In this embodiment, the same lower surface of the position detecting means 9 as described above is supported by the force sensor 12.
The force sensor 12 includes a cylindrical body 13 having an appropriate elasticity.
3 pairs of strain gauges A to
This is a configuration in which F is attached. Each pair of strain gauges (A,
D), (B, E) and (C, F) are respectively incorporated in the bridge circuit to detect the difference between the outputs of the gauges. Set strain gauges (A, D) and (C, F) in the X direction and Y, respectively.
Strain gauges (A,
The compression force (Fy) around the Y axis can be detected by detecting the difference of D), and the compression force (Fx) around the X axis can be detected by detecting the difference of the strain gauges (C, F). be able to.

Further, by disposing the strain gauges (B, E) at the positions of oblique twist, it is possible to detect the difference between the strain gauges (B, E) to detect the twisting force (T).

With the above structure, when a pressing force is applied to the position detecting means 9 of the third embodiment by a finger or the like, the pressing position coordinates (X, Y), the pressing force F = Fx + Fy, the twisting force generated by the pressing. The four parameters of T can be detected and input to the control circuits of various electronic devices. As an object to be controlled, for example, in an electronic musical instrument, the output from the strain gauges (A, D) is used as a volume control signal, the output from the strain gauges (C, F) is used as a pitch control signal, and the strain gauges (B, E) are used. The output from) can be used as a filter characteristic control signal.

[0017]

As described above, according to the present invention, the position detecting means for detecting the pressed position by contacting and pressing the panel surface and the pressure detection for detecting the pressing force at that time. The means can be integrally configured, and two detection data of position and pressure can be input from one pressing operation, and it becomes possible to control a plurality of parameters in real time.

[Brief description of drawings]

FIG. 1 is a configuration explanatory diagram of an input device according to an embodiment of the present invention.

FIG. 2 is a perspective view of an input device according to another embodiment of the present invention.

FIG. 3 is a perspective view of an input device according to still another embodiment of the present invention.

4 is a partial detailed perspective view of the embodiment of FIG.

[Explanation of symbols]

1, 4; insulating substrate, 2, 3; electrode, 5, 7; electrode, 6;
Pressure-sensitive rubber, 8; substrate, 9; position detecting means, 10; pressure detecting means

Continuation of front page (51) Int.Cl. ⁵ Identification number Office reference number FI Technical display location G10H 1/32 Z 7345-5H 1/46 4236-5H

Claims (1)

[Claims] 1. An input device comprising position detecting means for detecting the coordinates of the pressed position by applying a pressing force, and pressure detecting means provided integrally with the position detecting means for detecting the pressing force. .