JP3430528B2 - Tone control signal generator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tone control signal generator, and more particularly to a tone control signal generator for detecting a motion of a part of a human body to control a tone generation and a tone element of the generated tone. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, a sensor for detecting a movement of a body is attached to a part of a human body, and the generation of a musical tone is controlled according to the detection signal of the sensor, and the tone color, volume,
There has been proposed a musical tone control signal generating device capable of controlling musical tone while performing dance or rhythmic gymnastics by controlling effects and the like. For example, in a previous application of the same applicant as the present applicant (Japanese Patent Laid-Open No. 1-250997), each finger is attached with a motion detection sensor, and each finger is assigned a pitch or tone color. There has been proposed a musical tone control signal generating device capable of controlling changes in the volume of a generated musical tone signal, a subtle timbre, and the like according to the bending amount. Further, there is also proposed a musical tone control signal generation device in which a motion detection sensor is attached to an arm or shoulder and a musical tone signal is generated when a speed at which the arm or shoulder is moved exceeds a predetermined threshold value according to the detection signal. (Japanese Patent Application No. 3-205297 etc.).

[0003]

However, in the above-mentioned conventional musical tone control signal generator, for example, when the motion detection sensor is attached to the arm or shoulder, the motion of moving the arm or shoulder gives a resistance feeling only by cutting the sky. There wasn't enough sense of being playing. Further, in a tone control signal generator configured to generate a tone when a predetermined threshold is exceeded, it is difficult for the performer to perceive which position is the threshold, so when the tone is actually generated There is a problem in that there is a gap in the time when the musical sound is generated, and when it is desired to repeat the generation and stop of the musical sound, it is difficult to take the timing.

The present invention has been made in view of the above problems, and provides a tone control signal generating device which enables a player to feel the performance and to generate and stop a tone at a desired time. With the goal.

[0005]

In order to achieve the above object, the musical tone control signal generator according to claim 1 is attached to a joint part of a human body, and an angle detecting means for detecting a bending angle of the joint. , Comparing the bending angle with a predetermined threshold value to determine which of the plurality of angular ranges it belongs to, and generating a musical tone having a characteristic according to the angular range determined by the determining means. A signal generating means for generating a musical tone control signal for instructing, and a bending operation of the joint portion.
A braking force generating means for generating a braking force for braking, the small angle range wherein the bending angle comprises the predetermined threshold, the
And a braking force generating means for generating a braking force larger than the braking force generated in a range other than the minute angle range . In order to achieve the above object, the musical sound control signal generating device according to claim 2 is attached to a joint part of a human body, and an angle detecting means for detecting a bending angle of the joint and the bending angle are set to a predetermined angle. Predetermined angle detecting means for detecting reaching, signal generating means for generating a musical tone control signal for instructing start or stop of musical tone generation when the predetermined angle detecting means detects, and a control for braking the bending operation of the joint portion. Power out
The generated braking force generation means is generated in a predetermined period after the detection by the predetermined angle detection means except the predetermined period.
And a braking force generating means for generating a braking force larger than the braking force. Also, preferably, the pre-Symbol bending angle is detected by the predetermined angle detector
When exceeding a predetermined angle smaller than a second predetermined angle of 1, and further comprising a reaction force generating means for generating a reaction force against the bending operation of the joint portion. In order to achieve the above-mentioned object, the musical tone control signal generating device according to claim 4 is attached to a joint portion of a human body, and an angle detecting means for detecting a bending angle of the joint, and the musical tone signal generating device at the start of generation of the musical tone signal. Storage means for storing a bending angle of a joint; signal generating means for generating a tone control signal for instructing the generation of a tone having a characteristic according to an angular displacement of the bending angle of the joint from the stored bending angle; And a returning force generating means for generating a returning force that brings the bending angle of the above-mentioned bending angle closer to the stored bending angle.

However, the present invention is not limited to this, and it is installed in a human body and detects a movement of the body, a comparison means for comparing the output of the movement detection means with a predetermined threshold value, and a comparison by the comparison means. It may be characterized by further comprising signal generating means for generating a tone control signal based on the result, and notifying means for detecting that the output of the operation detecting means approaches the predetermined threshold value and notifying the player. .

[0007]

According to the structure of the present invention, when the judging means detects that the bending angle of the joint has entered a minute angle including a predetermined threshold value, the bending force generating means brakes the bending angle of the joint portion . Braking that occurs outside the range of the minute angle
A braking force larger than the force is generated, and the signal generation means generates a musical tone control signal for instructing the generation of a musical tone having a characteristic corresponding to the range of the bending angle of the joint, so that the player can actually feel the performance, Musical sounds can be generated and stopped at this point.

[0008]

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a tone control signal generator according to an embodiment of the present invention.

In the figure, the tone control signal generator of this embodiment has the same structure as the elbow sensors 1 and 2 attached to both left and right arms including the elbow and for detecting the bending angle of the elbow. A glove sensor 3 having a plurality of sensors attached to the glove corresponding to the joints of the fingers to detect the bending angle of each finger, the elbow sensors 1 and 2, and the glove sensor 3.
(Hereinafter, these three sensors are collectively referred to as "angle sensor".
Which is electrically connected to the elbow and finger joints, detects the bending angles of the elbow and finger joints, and generates a reaction force according to the detected bending angles and the changing speed thereof, and a display for displaying various information. Device (for example, LCD display) 5,
A switch group 6 for variably setting various parameters, a timer 7 for timing, a CPU 8 for controlling the entire apparatus, and C
ROM 9 for storing data such as programs and tables executed by PU 8, RAM 10 for temporarily storing input information and calculation data, sound source 11 for generating a musical sound signal based on data generated by CPU 8, and musical sound signal And a sound system 12 for converting the sound into voice. Here, the sound source 11 is a physical model type sound source, and generates a tone signal based on the note number, bow speed, bow pressure, bend data, etc. supplied from the CPU 8. Further, the sound source 11 has a gate circuit, supplies the musical tone signal generated by opening the gate according to the note-on signal supplied from the CPU 8 to the sound system 12, and responds to the note-off signal supplied from the CPU 8. By gradually closing the gate, the musical tone signal supplied to the sound system 12 is gradually attenuated and muted. Each angle sensor 1
3 to 3 have a function of detecting a bending angle and a function of generating a reaction force applied to an elbow or a finger as described later.

The detection / drive circuit 4, the display 5, the switch group 6, the timer 7, the CPU 8, the ROM 9, the RAM 10 and the sound source 11 are connected to each other via the bus line 13, and the sound source 11 is connected to the sound system 12. Has been done.

As will be described later in detail, the CPU 8 obtains the bending angles of the left and right elbows according to the output voltages of the elbow sensors 1 and 2, and determines the pitch name of the musical tone by the combination of the angles. For example, three angle ranges are set for the bending angle of the elbow, and when the player bends the elbow, the note name of the musical sound is determined by the angle range to which the detected bending angle value belongs. Also,
The glove sensor 3 is arranged so that the sensor of each finger corresponds to a different octave, and the octave is determined by the finger bent by the performer. That is, for example, the middle finger corresponds to the standard octave, the index finger and the thumb correspond to octaves higher than the standard octave by one octave and two octaves respectively, and the ring finger and the little finger correspond to the octaves lower than the standard octave and octaves lower than the standard octave, respectively. The note number NN of a desired musical tone is generated by bending at a certain angle and bending a predetermined finger.

Further, the CPU 8 controls the magnitude of the braking force (reaction force) of the right elbow sensor 2 according to the bending amount of the finger detected by the glove sensor 3, and the note number NN of the left elbow sensor 1 is controlled. Is controlled so as to generate a return force (reaction force) for returning to the determined angle in accordance with the angular displacement from the determined angle. Further, the bend is changed according to this angular displacement.

2 and 3 are a front view and a plan view of the angle sensor, respectively, and FIG. 4 is an enlarged front view of a main part of the angle sensor.

2 and 3, the angle sensor is made of a resin such as vinyl chloride and is attached to both sides of the elbow or finger joint, respectively, and the bending angle of the elbow or finger joint. It mainly comprises a variable resistor 22 whose resistance value changes in accordance with the above, and a motor 23 which changes the magnitude of the reaction force in accordance with the changing speed of the bending angle of the elbow or finger joint. The plate body 20 has a flat plate-shaped portion 20 ₁ having a substantially rectangular shape and a hole 20 ₂ for mounting a motor shaft 24, which will be described later, formed at a substantially central portion of the plate body 20 and has a semicircular outer peripheral portion. And part 20 ₃ . The plate 21 is a flat plate having a substantially rectangular shape,
The upper left corner is cut out in an L shape and the rest is a convex portion 21 _1.
Is formed as. The motor 2 is placed on the convex portion 21 _1.
3 is mounted, and its shaft 24 is fitted in the hole 20 ₂ so as to be integrally rotatable. Furthermore, in the convex portion 21 ₁ ,
The variable resistor 22 is loosely fitted and mounted on the motor shaft 24.

As shown in FIG. 4, the variable resistor 22 is
Distribution includes a substrate 22 ₁ having a hole for the motor shaft 24 is loosely fitted in the center, on the substrate 22 _1, and ₂ concentrically formed in the resistor 22, one end of the resistive element antibodies 22 ₂ The terminal 22 ₃ is provided and a slider 22 ₄ mounted on the motor shaft 24 and slidingly rotating on the resistor 22 ₂ . Terminal 22 ₃ and slider 22 ₄ are detection / drive circuit 4
The detection / drive circuit 4 detects the bending angle of the joint of the elbow or the finger based on the change in the resistance value according to the sliding displacement of the slider 22 ₄ on the resistor 22 ₂ .

FIG. 5 is a block diagram showing a schematic configuration of the detection / drive circuit 4.

[0019] In the figure, the detection and drive circuit 4 includes a detection circuit 4 ₁ for detecting an output voltage of the variable resistor 22 which is provided for each finger of the elbow sensors 1, 2 and gloves sensor 3, a motor 23 It is composed of a drive circuit 4 _{2 for} driving. One end of the variable resistor 22 (terminal 22 ₃ and slider 2
One of 2 ₄ ) is connected to the input side of the amplifier 41, and the other end (the other of the terminal 22 ₃ and the slider 22 ₄ ) is connected to a power supply (not shown). The output side of the amplifier 41 is connected to the input sides of a speed detection circuit 42 and an A / D converter 43, which are constituted by a differentiating circuit and detect the changing speed of the bending angle. The output side of the A / D converter 43 is connected to the bus line 13 via an angle detection register 44. In this configuration, the output voltage of the variable resistor 22 is
It is amplified by the amplifier 41, the speed of change of the bending angle is detected by the speed detection circuit 42, and is digitally converted by the A / D converter 43 and held as digital data in the angle detection register 44, and the CPU 8 via the bus line 13. Be transmitted to. Furthermore, the speed detection circuit 4
The output side of 2 is connected to one input terminal of the braking force generation circuit 45, and the output side of the braking force register 46 is connected to the other input terminal of the circuit 45. Each input side of the braking force register 46 and the returning force register 47 is connected to the bus line 13. The output side of the return force register 47 is connected to the input side of the return force generation circuit 48, and the output sides of the return force generation circuit 48 and the braking force generation circuit 45 are connected to the two input terminals of the adder 49. . Adder 49
The output side of is connected to the motor 23 via the amplifier 50. In this configuration, the CPU is connected via the bus line 13.
8 and the control data values stored in the return force register 47 and the braking force register 46, respectively, are returned to the return force generation circuit 48 and the braking force generation circuit 4 respectively.
5 is output. The braking force generation circuit 45 generates a braking force according to a click process and a bending speed of the joint, which will be described later, based on the output of the braking force register 46 and the output of the speed detection circuit 42, and the return force generation circuit 48.
Generates a returning force based on the output of the returning force register 47, and the adder 49 adds the braking force and the returning force and outputs the result as the driving force of the motor 23.

FIGS. 6 (a) and 6 (b) are views showing the angular ranges assigned to the bending angles of the left elbow sensor 1 and the right elbow sensor 2, respectively. State (ETAy to 180 °), slightly bent state (ETBy to ETAy), deeply bent state (0
° to ETBy). Here, ETAy and ETBy represent the threshold values of the respective angular ranges, and y is the number 1 and 2 indicating the left elbow sensor 1 and the right elbow sensor 2, respectively.

FIG. 7 is a diagram showing the relationship between the angular range of FIG. 6 and the note names of the generated musical tones. In the figure, the horizontal items show the angular range of the left elbow sensor 1, and the vertical items show the angular range of the right elbow sensor 2. For example, when the bending angle of the left elbow sensor 1 belongs to the angle range and the bending angle of the right elbow sensor 2 belongs to the angle range, the sound of RE (D) is generated.

FIG. 8 shows an elbow sensor 1, which is a feature of the present invention.
It is a figure which shows the 2nd click generation timing, a vertical axis | shaft shows the bending angle of the elbow sensors 1 and 2, and a horizontal axis shows time.

In the figure, a curve g ₁ shows the transition of the bending angles of the elbow sensors 1 and 2 from the state where the elbow is deeply bent to the time when the elbow is fully extended, and the minute angle Δ shows the angle range in which the click occurs. The motor 23 of the sensors 1 and 2 has the angle ETA.
When driven across the range of the minute angle Δ including y and ETBy, a click occurs.

FIG. 9 is a diagram showing control characteristics and return force characteristics of the left elbow sensor 1 during pitch bend control.

In the figure, the vertical axis represents the bend amount or the absolute value of the returning force, and the horizontal axis represents the displacement of the bending angle of the left elbow sensor 1 from the angle ETO1 when the note name of the musical tone is determined. . In the figure, a curve g ₂ shown by a solid line shows a characteristic curve of the bend amount, and a curve g ₃ shown by a chain double-dashed line shows a characteristic curve of the absolute value of the returning force. As shown by the curve g ₂ ,
The bend amount is determined by the angular displacement of the left elbow sensor 1 being equal to the angle ETO.
While increasing or decreasing linearly from 1 to the positive side or the negative side, respectively, the absolute value of the return force is approximately the same as the angular displacement increases to the positive side or the negative side as shown by the curve g _3. It increases logarithmically. At this time, in the vicinity of the angle ETO1, an angular displacement region in which neither the bend amount nor the absolute value of the returning force changes is provided, and
The angular displacement region of the bend amount is set to be larger than that of the absolute value of the returning force. This is to prevent the pitch from changing even if the elbow is bent slightly.First, let the performer feel the returning force, and after confirming that the pitch will change from now on, the pitch will actually change. Is designed to change.

FIG. 10 is a graph showing the return force characteristic of the glove sensor 3, where the vertical axis shows the return force and the horizontal axis shows the bending angle of the finger. In the figure, the returning force characteristic curve is the same as the characteristic curve of the absolute value of the returning force in FIG. 9 (region where displacement angle is positive) except for the scale of each axis.

FIG. 11 is a diagram showing the bending angle of each finger of the glove sensor 3, the return force, and the on / off event occurrence timing.

In the figure, the vertical axis represents the bending angle of the finger and the horizontal axis represents the time. Further, in the figure, FOx, FTAx, and FTBx represent the return force generation angle, the off-event generation angle, and the on-event generation angle, respectively. here,
x is a number 1 to 5 corresponding to each finger from the thumb to the little finger in order. Further, CT indicates the click occurrence time.

The player bends a predetermined finger to generate a desired octave tone, and the bending angle is angle F.
After reaching Ox (time Ta), as shown in FIG.
The return force (force to return the finger angle to the angle FOx) shown by is started to be generated and becomes the angle FTAx (time Tb).
Then, the on-event, that is, the octave is determined for the note having the note name determined by the elbow sensors 1 and 2, and a musical sound is generated. Here, since the angle FOx is smaller than the angle FTAx, a reaction force is generated before exceeding the sounding threshold value FTAx, and the player can know the sounding threshold value without producing a sound. As a result, the recognized threshold value can be exceeded at any timing, and the start timing of sound generation can be controlled. The angle F
A click occurs for a predetermined time CT immediately after reaching TAx, and informs the performer that the angle FTAx is the threshold value of an on-event. Next, when the bending angle of the finger changes from increasing to decreasing and reaches the angle FTBx (time Tc), an off event occurs, that is, the generated sound stops. Time T
Similar to the case of b, the click occurs for the predetermined time CT immediately after reaching the angle FTBx. Further, when the finger is extended to the angle FOx (time Td), the generation of the returning force is stopped. Further, as described above, between time Tb and time Tc, the magnitude of the braking force (reaction force) of the right elbow sensor 2 is controlled according to the bending amount of the finger from the angle FOx, and the left elbow sensor 1 is further controlled. At, the return force to the angle when the note number NN is determined is generated.

The processing operation executed by the CPU 8 will be described in detail below with reference to the flow charts shown in FIGS.

FIG. 12 is a flow chart of the main routine for executing the processing control of this embodiment. In step S1, various parameters are initialized, and then in step S2.
Then, a switch group process for determining the state of the switch group 6 and setting the parameter to be changed is executed.

FIG. 13 is a flow chart of a subroutine for performing this switch group processing. In step S101, the state of the switch group 6 is discriminated and the parameter to be changed is designated according to the discriminated state. For example, the parameters are FOx, FTAx, FTBx, ETAy, ETB.
y, minute angle Δ, click time CT, etc. Next, a new numerical value is set to the parameter designated in step S102.

Next, in step S3 of FIG. 12, it is determined whether or not a predetermined time has elapsed. If the predetermined time has elapsed, the process proceeds to step S4, and if the predetermined time has not elapsed, the process returns to step S2. That is, the processes after step S4 are performed at regular time intervals. In step S4, CP
U8 takes in the values of the angle detection registers 44 of the angle sensors 1 to 3 and stores them in the RAM 10. Here, the memory areas of the RAM 10 for storing the outputs (hereinafter referred to as “angle information output”) from the left elbow sensor 1 and the right elbow sensor 2 held in the angle detection register are designated as E1 and E2, respectively, and the glove sensor 3 RA storing the angle information output of each finger
Assuming that the memory areas of M10 are F1 to F5, respectively, the CPU 8 causes the angle detection registers 4 to operate via the bus line 13.
The value of 4 is stored in the memory areas E1, E2, F1 to F5.

Next, in step S5, the angle sensor 1
The tone generation / reaction force control processing for determining the generation of a desired tone and the strength of the reaction force applied to the motor 23 is executed according to the angle information of 3 to 3, and the process returns to step S2.

The tone generation / reaction force control processing, which is a feature of the present invention, will be described in detail below.

FIG. 14 and FIG. 15 are flowcharts of a subroutine for performing the tone generation / reaction force control processing. First, in step S10, the bending angle reference values FO1 to FO are set.
5 and the values of the memory areas F1 to F5 are compared,
Setting the reference value return force corresponding to the bending amount of the memory area F1~F5 for FO1~FO5 to the return force register 47 drive circuit 4 _2. Next, in step S11, it is determined whether or not the value of the flag FON is "1". The flag FON is a flag that becomes "1" when any of the fingers of the glove sensor 3 is bent and a musical sound is generated, and becomes "0" at other times.

The flag FON is not "1" (FON =
0), the process proceeds to step S12, and it is determined whether or not one of the fingers is bent, that is, whether or not it is an on event. If it is not the on event, the process proceeds to step S13, and the CNT click processing subroutine for controlling the finger click is executed.

FIG. 16 is a flowchart of this CNT click processing subroutine. In step S201, the value of the counter CNT that sets the click time CT is "0".
Whether or not it is "0", the process proceeds to step S202, and a small braking force equivalent value is set in the braking force registers 46 of all the fingers. On the other hand, when the counter CNT is not "0", the process proceeds to step S203, and if the i-th finger is bent, for example, a large braking force equivalent value is set in the braking force register of the finger i. Next, step S20.
At 4, the counter CNT is decremented by 1 and the process is ended.

Next, after the CNT click processing subroutine is completed, the process proceeds to step S14 in FIG.
It is judged whether or not the bending angle E1 is within the range of the minute angle Δ including the predetermined angles ETA1 and ETB1, and if it is within this range, the process proceeds to step S15 and the braking force register 46 of the left elbow sensor 1 is detected. Set the value equivalent to the large braking force to. On the other hand, if it is not within this range, step S
Proceeding to 16, the braking force register 46 of the left elbow sensor 1 is set to a small braking force equivalent value. Further, step S1
7, the bending angle E2 of the elbow sensor 2 is compared with the predetermined angles ETA2, ETB2 as in step S14, and if it is within the range of the minute angle Δ, in step S18,
On the other hand, if it is not within this range, in step S19, the braking force register of the right elbow sensor 2 is set to the corresponding values of the large braking force and the small braking force, respectively, and the process ends. This is the elbow click processing described above with reference to FIG. 8, and the player can perceptually recognize the boundaries of the angles divided into a plurality of stages.

If it is an on event in step S12, the process proceeds to step S20, and the flag FON is set to "1". Next, in step S21, the number of the bent finger is substituted for i. Step S22 and Step S2
3, the bending angles E1 and ETA1, ETB1 are respectively predetermined angle values, and the bending angles E2 and ETA2, ETB2 are respectively.
As described with reference to FIG. 5, it is determined which angle range the bending angle of the elbow falls within, and in step S24, the angle ranges of the left and right elbows are compared with those of FIG. Is compared with the tone name of the musical tone indicated by and the octave conversion is performed according to the octave indicated by the finger i to determine the note number NN of this musical tone. Further, in step S25, the note-on signal of this note number NN is sent to the bus line 13
To the sound source 11 via. In addition, step S26
Then, the E1 value at this time is set to the predetermined angle ETO1 by E2.
The value is stored in the memory area EO2 of the RAM 10, and in step S27, the click time CT for generating the above-mentioned click is set in the counter CNT and the process is ended.
That is, here, the processing operation at time Tb in FIG. 11 is performed.

If the flag FON is "1" in step S11, the flow advances to step S28 to determine whether or not a finger other than the finger i is an on event. At this time, if any of the other fingers is the on-event, the process proceeds to step S29, the note-off signal of the sound generated by the finger i is output to the sound source 11, and then the process proceeds to step S21. Steps S21 to S described above for the processing by the finger
Run at 27. Therefore, the processing operation of the finger which becomes an on event later is preferentially performed.

When the fingers other than the finger i are not the on event in step S28, the process proceeds to step S30 in FIG.
It is determined whether the finger i is an off event. If it is an off event, the process proceeds to step S31, and the flag FON value is set to "0".
To the sound source 11, and outputs the note-off signal of the sound generated by the finger i to the sound source 11 in step S32.
At 33, the click time CT is set in the counter CNT and the process is terminated. That is, the processing operation at time Tc in FIG. 11 is performed here.

On the other hand, if it is not the off event in step S30, the process proceeds to step S34, the above-mentioned CNT click processing subroutine is executed, the process proceeds to step S35, and the pressure corresponding to the bending amount of the finger i from the reference value FOi is applied. Find the data p. Here, the pressure data p corresponds to, for example, the bow pressure when a stringed instrument is played, and the bow pressure is set to be larger as the bending angle of the finger is larger.

Next, in step S36, the braking force corresponding to the pressure data p is set in the braking force register 46 of the right elbow sensor 2. Here, for example, when the player pulls the bow of a stringed instrument with his right hand, the situation is created in such a way that the higher the bow pressure, the stronger the force must be to pull the right arm. Further, in step S37, the previous bending angle EO2 is subtracted from the current bending angle E2 of the right elbow sensor 2 to obtain the speed at which the bow is drawn, and the bow speed v is obtained.
The current bending angle E2 is set to EO2 to obtain the next bow speed.
Store as a value.

In the following step S38, the return force is set in the return force register 47 of the left elbow sensor 1 in accordance with the angular displacement of the bending angle E1 of the left elbow sensor 1 with respect to the predetermined angle ETO1, and in step S39 this angle is set. Bend data BEND is obtained according to the displacement. Next, step S40.
Then, the pressure data p, the bow speed v, and the bend data BEND are sent to the sound source 11 via the bus line 13, and the process is ended.

As described above, in the case of the elbow sensors 1 and 2, the minute angle Δ including the threshold value of the angle at which the note name of the musical tone changes,
In the case of the glove sensor 3, since a click is generated for a fixed time from the time when the musical sound is generated and stopped, the player can know the position where the musical sound is generated and the position where the musical sound is stopped.
Further, since the angle sensor generates a braking force according to the changing speed of the bending angle and a returning force according to the amount of angular displacement from a predetermined angle, the player can feel that he is playing.
Further, in this embodiment, a physical model type sound source is used,
Since the bending amount of the finger of the glove sensor 3 corresponds to the bow pressure of the stringed instrument and the braking force of the right elbow sensor 2 corresponding to the bending amount corresponds to the pulling force of the bow, the player can imitate the performance of the stringed instrument. it can.

As shown in FIG. 17, as the means for detecting the bending angle of the elbow, the strain gauge type angle sensor 22 'is added to the elbow sensors 1 and 2 used in place of the variable resistor 22 in the above-mentioned embodiment. May be used. Further, instead of active control by the combination of the motor 23 and the detection / drive circuit 44 as means for detecting the bending angle of the elbow and generating a reaction force, an oil damper type actuator 23 'is used to rotate the plates 20, 21. Passive control using fluid resistance proportional to speed may be adopted. In FIG. 17, S is a supporter.

Further, the motor 23 is used as a generator, a variable resistor is connected in series to the motor 23, and the torque of the motor 23 is changed by changing the resistance value of the variable resistor to perform the performance of the performer. The reaction force of the movement may be adjusted. Further, a brake using an electromagnetic clutch may be used instead of the motor 23.

The reaction force generating means (in the present embodiment, the elbow sensors 1 and 2) may be installed not only on the elbow but also on the shoulders, fingers, feet, etc., and the sensor is not limited to the angle detecting sensor. It may be a distance sensor, a gyro, an acceleration sensor, or the like.

Further, in the present embodiment, various information and the like are transmitted to the player by the braking force, the returning force, and the click generated by the reaction force generating means. Shock generator, vibration generator, light,
A sound generator, a pressure generator, or the like may be used.

[0051]

As described above, according to the present invention,
When the determining means detects that the bending angle of the joint has entered a minute angle including a predetermined threshold value, the bending force generating means brakes the bending angle of the joint portion, other than the range of the minute angle.
A braking force larger than the braking force generated in step (1) is generated, and the signal generation means generates a musical tone control signal for instructing the generation of a musical tone having a characteristic corresponding to the range of the bending angle of the joint. It becomes possible to realize that the music player has a desired time to generate and stop the musical sound, and an output corresponding to the energy input by the player is generated from the musical sound control signal generator. This has the effect of making it possible to imitate the performance of a string instrument, a wind instrument, or the like.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a tone control signal generator according to an embodiment of the present invention.

FIG. 2 is a front view of the angle sensor of FIG.

3 is a plan view of the angle sensor shown in FIG. 1. FIG.

FIG. 4 is an enlarged front view of a main part of the angle sensor shown in FIG.

FIG. 5 is a block diagram showing a schematic configuration of a detection / drive circuit 4.

FIG. 6 is a view showing an angle range assigned to bending angles of the elbow sensors 1 and 2.

FIG. 7 is a diagram showing the relationship between the angular range of FIG. 6 and the note names of generated musical tones.

FIG. 8 is a diagram showing a click generation timing of the elbow sensors 1 and 2.

FIG. 9 is a diagram showing control characteristics and return force characteristics of the left elbow sensor 1 during pitch bend control.

FIG. 10 is a diagram showing a return force characteristic of the glove sensor 3.

FIG. 11 is a diagram showing a bending angle of each finger of the glove sensor 3, a return force, and an on / off event occurrence timing.

FIG. 12 is a flowchart of a main routine.

FIG. 13 is a flowchart of a subroutine showing switch group processing.

FIG. 14 is a flowchart of a subroutine showing a tone generation / reaction force control process.

FIG. 15 is a flowchart of a subroutine showing a tone generation / reaction force control process.

FIG. 16 is a flowchart of a subroutine showing CNT click processing.

FIG. 17 is a diagram showing another embodiment of the elbow sensors 1 and 2.

[Explanation of symbols]

1 and 2 elbow sensor ( angle detection means ) 3 glove sensor ( angle detection means ) 4 detection / driving circuit ( angle detection means, braking force generation means,
Reaction force generation means , return force generation means 8 CPU ( determination means, signal generation means , braking force generation means )
Step, predetermined angle detection means, reaction force generation means, return force generation means ) 10 RAM (storage means) 11 sound source 22 variable resistor ( angle detection means ) 23 motor ( braking force generation means, reaction force generation means , return force)
Generating means )

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Claims (4)

(57) [Claims] 1. An angle detecting means which is attached to a joint part of a human body and detects a bending angle of the joint, and compares the bending angle with a predetermined threshold value to determine which angle range among a plurality of angle ranges. Determination means for determining whether or not it belongs, signal generation means for generating a tone control signal for instructing the generation of a tone having a characteristic according to the angle range determined by the determination means, and a braking force for braking the bending operation of the joint portion. Braking to generate
Force generation means, wherein the bending angle is generated in a range other than the minute angle range in the minute angle range including the predetermined threshold value .
And a braking force generating means for generating a braking force larger than the braking force. 2. An angle detecting means attached to a joint part of a human body for detecting a bending angle of the joint, a predetermined angle detecting means for detecting that the bending angle reaches a predetermined angle, and the predetermined angle detection. Signal generation means for generating a musical tone control signal for instructing the start or stop of musical tone generation when detected by the means, and a braking force generating a braking force for braking the bending operation of the joint portion.
Force detection means, after detection by the predetermined angle detection means
The braking force generated during other than the predetermined period
Musical tone control signal generating apparatus characterized by having a braking force generating means for generating a greater braking force. It is 3. A front Symbol bend angle to the predetermined angle detecting means
Therefore, it further comprises reaction force generating means for generating a reaction force to the bending operation of the joint portion when the second predetermined angle smaller than the detected first predetermined angle is exceeded. The musical sound control signal generator according to claim 2. 4. An angle detecting means which is attached to a joint part of a human body and detects a bending angle of the joint, a storing means which stores the bending angle of the joint at the start of generation of a tone signal, and a bending of the joint. A signal generating means for generating a musical tone control signal for instructing musical tone generation having a characteristic corresponding to an angular displacement of the angle from the stored bending angle; and a return force for bringing the bending angle of the joint close to the stored bending angle. A musical tone control signal generating device, comprising: a returning force generating means for generating the returning force.