JPH01284896A - Sensor for controlling musical tone - Google Patents

Abstract

PURPOSE:To generate and control a musical tone in accordance with a free operation of a person by providing a curved part which is bent in accordance with bending of a finger, and a distortion sensor for outputting a signal corresponding to a distortion of the curved part. CONSTITUTION:When a finger 1 is bent, a band zone 2 is curved, and in accordance therewith, a distortion sensor 3 is distorted. When the sensor 3 is distorted, its resistance value is varied, and a signal Sa corresponding to this variation is outputted from a detecting circuit 5. In case of executing a control based on the signal Sa, a control circuit 6 executes a control of a tone color and a sound volume, etc., corresponding to a value of the signal Sa. Also, when the value of the signal Sa exceeds a threshold Vs, a signal KON is outputted, and in case when the circuit 6 executes a control based on the signal KON, the generation of a musical tone is executed from the time of an output of the signal KON. According to this constitution, a position or an attitude for playing a musical instrument is not restricted, and in accordance with a free operation of a person, the musical tone can be generated and controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field No. 11] The present invention relates to a musical tone control sensor suitable for use in controlling musical tones in accordance with the bending of a finger.

``Conventional Technology'' Conventional musical instruments, whether natural or electronic, generate and control musical sounds by pulling the keyboard or blowing a pipe.

``Problems that the invention attempts to solve'' As mentioned above, conventional musical instruments involve the action of playing the instrument, and require the presence of an object (such as a keyboard) for playing. Therefore, there is a problem in that the playing position, playing posture, etc. are restricted.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a musical tone control sensor that can generate and control musical tones according to the free movement of a person without any restrictions on the playing position or posture. It is said that

"Means for solving the problem" In order to solve the above problem, the invention according to claim 1:
The device includes a curved portion that can be attached to a finger and curves when the finger bends, and a strain sensor that is provided within the curved portion and outputs a signal corresponding to the distortion of the curved portion.

Moreover, in the invention according to claim 2, it is a cylindrical elastic member into which the curved convex curved portion iii is inserted.

In the invention according to claim 3, the first curved portion is a plate-shaped elastic member provided along the longitudinal direction of the finger, and the strain sensor is attached to one surface of the elastic member.

In the invention according to claim 4, the curved portion includes a plate-shaped first elastic member provided along the longitudinal direction of the finger;
and a second elastic member provided in parallel to the first elastic member, and the strain sensor is provided between the first and second elastic members.

1 Effect 1 When the finger is bent, the curved part curves accordingly,
Apply distortion to the distortion detector. Thereby, a signal corresponding to the bending of the finger can be obtained from the distortion detector.

Since this signal is used as a musical tone control signal, the musical tone is controlled by bending the finger.

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1(A) shows the configuration of the first embodiment of this invention.
゛It is a side view. In the figure, l is a finger and 2 is a finger l
It is a cylindrical band with a . This band 2 is made of a flexible member, and is adapted to curve when the finger 1 is bent. A strain sensor 3 made of pressure-sensitive rubber or the like is provided within this band l. The output signal of this strain sensor 3 is supplied to a detection circuit 5 shown in FIG. The detection circuit 5 includes the strain sensor 3
This is a circuit that outputs a signal Sa corresponding to a change in resistance of
The output signal Sa is supplied to a control circuit 6 and a comparator 7. Comparator 7 compares threshold value Vs and signal Sa to create a signal KON indicating key-on. This key-on signal KON is supplied to the control circuit 6. The control circuit 6 controls the sound generation timing of musical tones based on the signal KON, and also controls, for example, pitch, volume, tone color, etc. based on the signal Sa.

According to the above-described configuration, when the finger 1 is bent, the band 2 is curved, and the strain sensor 3 is accordingly distorted. When the strain sensor 3 is distorted, its resistance value changes, and the detection circuit 5 outputs a signal Sa corresponding to this change. Here, when the control circuit 6 performs control based on the signal Sa, the control circuit 6 uses the signal S
The tone, volume, etc. are controlled in accordance with the value of a. Further, when the value of the signal Sa exceeds the threshold value Vs, the signal KON is output. When the control circuit 6 performs control based on the signal KOH, musical tones are generated from the time the signal KON is output.

FIG. 2 is a side view showing the configuration of a second embodiment of the invention. In the figure, 10 is a thin plate-like main body, which is fixed to the palm of the hand by a fastening member or the like (path shown). A thin plate-like strain sensor 11 is attached to the tip of this main body lO.
is installed. This strain sensor II is connected to a detection circuit 5 shown in FIG. 1(b). Also, from the top surface of the main body 1O and the strain sensor 11, a plate-shaped curved member 12 is visible!
It extends to the tip of the. The curved member 12 is formed of a flexible member, and returns to its original flat state when no external force is applied.

According to the above configuration, when the finger l is bent, the bending member 12
is bent, and the strain sensor 11 is distorted. As a result, the resistance value of the strain sensor 11 changes, and the output signal Sa of the detection circuit 5 changes, resulting in the same operation as in the first embodiment. Furthermore, when the finger 1 is extended, the bending member 12 returns to its original state, the signal Sa returns to its initial value, and the key-on signal KON is stopped.

Next, FIG. 3 is a side view showing the configuration of a third embodiment of the present invention. In the figure, reference numeral 15 denotes a somewhat thick plate-shaped main body, which is fixed to the palm of the hand by a fastening member (path shown). 16 and 17 are curved members, respectively, and are attached to the tip of the main body 15. These curved members 16, 17 extend along the finger 1 and are provided in parallel and spaced apart from each other by a predetermined distance. 18 is a strain sensor, and the curved portion 1. t
It is fixed between the tips of t6.17. This strain sensor 18 is connected to the detection circuit 5 (see FIG.
b)).

In the above configuration, when the finger 1 is bent, the bending member 16
．． 17 are respectively curved. In this case, the curved member 16.
Since the fixed position of strain sensor 17 is spaced a predetermined distance northward, the upper surface of strain sensor 18 is a curved member! 6 to the left side in the drawing, and the lower surface of the strain sensor 18 is pulled to the right side in the drawing by the bending member 17. As a result, strain occurs in the strain sensor 18, and its resistance value changes. Therefore, the operation is similar to that of the second embodiment. Furthermore, when the finger l is extended, it returns to its original state due to the elastic force of the bending members 16 and 17.

"Effects of the Invention" As explained above, according to the present invention, there is a curved part that is configured to be attachable to a finger and that curves when the finger is bent, and a curved part that is provided within the curved part and that is attached to the curved part. It is equipped with a distortion detector that outputs a signal corresponding to distortion, and the output signal of this distortion detector is output as a musical tone control signal, eliminating restrictions on the playing position and posture, and allowing the user to freely move ( The advantage is that musical tones can be generated and controlled according to the bending of the fingers.

[Brief explanation of the drawing]

FIG. 1(a) is a side view showing the configuration of a first embodiment of the present invention, FIG. 1(b) is a circuit diagram showing the configuration of an electric circuit used in the same embodiment, and FIG. 2 is a side view showing the configuration of the first embodiment of the invention. FIG. 3 is a side view showing the structure of the second embodiment of the invention, and FIG. 3 is a side view showing the structure of the third embodiment of the invention. 2...Band (curved member), a, tt, 18.
...Strain sensor, 12.16.17...Curved member.

Claims (4)

[Claims] (1) A curved portion that is configured to be attachable to a finger and curves in accordance with the bending of the finger; and a distortion detector that is provided within the curved portion and outputs a signal corresponding to the distortion of the curved portion. A musical tone control sensor, characterized in that the output signal of the distortion detector is output as a musical tone control signal. (2) The musical tone control sensor according to claim 1, wherein the curved portion is a cylindrical elastic member into which a finger is inserted. (3) Musical tone control according to claim 1, wherein the curved portion is a plate-shaped elastic member provided along the longitudinal direction of the finger, and the strain sensor is attached to one surface of the elastic member. sensor. (4) The curved portion has a plate-shaped first elastic member provided along the longitudinal direction of the finger, and a second elastic member provided in parallel to the first elastic member, and 2. The musical tone control sensor according to claim 1, wherein the sensor is provided between the first and second elastic members.