FR3028655A1 - Control device, method for operating such a device and audiovisual system - Google Patents

Control device, method for operating such a device and audiovisual system Download PDF

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FR3028655A1
FR3028655A1 FR1461092A FR1461092A FR3028655A1 FR 3028655 A1 FR3028655 A1 FR 3028655A1 FR 1461092 A FR1461092 A FR 1461092A FR 1461092 A FR1461092 A FR 1461092A FR 3028655 A1 FR3028655 A1 FR 3028655A1
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control
function
optical sensor
light beams
signal
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FR1461092A
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French (fr)
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FR3028655B1 (en
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Claude Francis Juhen
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Claude Francis Juhen
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS
    • G10H1/00Details of electrophonic musical instruments
    • G10H1/02Means for controlling the tone frequencies, e.g. attack, decay; Means for producing special musical effects, e.g. vibrato, glissando
    • G10H1/04Means for controlling the tone frequencies, e.g. attack, decay; Means for producing special musical effects, e.g. vibrato, glissando by additional modulation
    • G10H1/053Means for controlling the tone frequencies, e.g. attack, decay; Means for producing special musical effects, e.g. vibrato, glissando by additional modulation during execution only
    • G10H1/055Means for controlling the tone frequencies, e.g. attack, decay; Means for producing special musical effects, e.g. vibrato, glissando by additional modulation during execution only by switches with variable impedance elements
    • G10H1/0553Means for controlling the tone frequencies, e.g. attack, decay; Means for producing special musical effects, e.g. vibrato, glissando by additional modulation during execution only by switches with variable impedance elements using optical or light-responsive means
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS
    • G10H2220/00Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/155User input interfaces for electrophonic musical instruments
    • G10H2220/405Beam sensing or control, i.e. input interfaces involving substantially immaterial beams, radiation, or fields of any nature, used, e.g. as a switch as in a light barrier, or as a control device, e.g. using the theremin electric field sensing principle
    • G10H2220/411Light beams

Abstract

The control device (10) comprises: means for generating at least two optical paths traversed by non-parallel light beams (110a and 110b) comprising at least one optical sensor (115) and at least one transmitter (105a or 105b) of at least one light beam, - means (145) for measuring the speed (150) of an object passing through at least two light beams as a function of a signal (120) issuing from at least one sensor optical device representing the cutting of the optical paths by the object, - means for estimating (125) the longitudinal position (130) of the crossing of the object as a function of a signal coming from at least one optical sensor representing the cutting of the optical paths by the object of at least two non-parallel light beams and - control means (135) called "position control means" of a parameter value (140) of an audiovisual effect in function the estimated longitudinal position.

Description

FIELD OF THE INVENTION The present invention relates to a control device, a method of operating such a device and an audiovisual system. The present invention applies to the field of non-contact control devices.

More particularly, the present invention is applicable to electronic musical instruments. State of the art Non-contact control devices are mainly control devices on presentation of an object or by interruption of a light beam, such as a laser for example. These control devices make it possible to switch from one state to another, such as the opening of a door, or the putting into operation of a device. Modulating devices of an intensity, sound or light, for example, use a potentiometer and require a contact of the user. These devices allow modulation of an intensity. These devices exclude the possibility of switching from one state to another over the proposed range of intensities without going through all the intermediate intensities. With regard to contactless musical instruments, US Pat. No. 8,835,739 discloses a device that makes it possible to play previously recorded sounds by interrupting lasers. The device disclosed in patent FR 2 777 107 makes it possible to produce sounds by interrupting a laser by means of a rod. The baton interrupts the laser for the first time to play the sound and a second time to interrupt the sound. The velocity of the rod being measured by device object of patent FR 2 777 107, the sound produced is more or less strong depending on this velocity. A sequence of sounds is prerecorded and the sound played, for example a note, is independent of the will of the user.

OBJECT OF THE INVENTION The present invention aims to remedy all or part of these disadvantages. For this purpose, according to a first aspect, the present invention is directed to a control device which comprises: means for generating at least two optical paths traversed by non-parallel light beams comprising at least one optical sensor and at least one optical sensor; an emitter of at least one light beam; means for measuring the speed of an object traversing at least two light beams as a function of a signal emerging from at least one optical sensor representing the cutting of optical paths by the object, - means for estimating the longitudinal position of the crossing of the object as a function of a signal coming from at least one optical sensor representing the cutting of the optical paths by the object of at least two non-parallel light beams 10 and control means called "position control means" of a parameter value of an audiovisual effect as a function of the estimated longitudinal position. The advantage of these embodiments is to have several different controls depending on each estimated longitudinal position, the user can, for example, create a melody or control different devices, such as visual effects devices, depending on the estimated longitudinal position. In addition, such a device can be used to control a large number of devices. Since such a device is configurable and configurable, the device object of the present invention may have different uses. In embodiments, the device that is the subject of the present invention comprises control means called "speed control means" of a parameter value of an audiovisual effect as a function of the measured speed.

These embodiments have the advantage of modifying the intensity or the speed of a parameter value of an audiovisual effect controlled by the positional control means for example. In embodiments, the device which is the subject of the present invention comprises: means for detecting the direction of interruption of at least two optical paths by the object as a function of at least one signal output by at least an optical sensor representing the cutting of the optical paths by the object of at least two light beams and - means of control called "directional control means" of a parameter value of an audiovisual effect according to the direction detected. The advantage of these embodiments is to control two parameter values of an audiovisual effect for the same position of breaking optical paths by the object as a function of the cutoff direction. In embodiments, the direction of cleavage of the optical paths by the object is detected as a function of at least one signal output from at least one optical sensor representing the cleavage of the optical paths by the object of at least one three light beams and the directional control means control at least one parameter value of at least one audiovisual effect according to two components of a vector representative of the direction detected. A parameter value of an audiovisual effect controlled according to two components of a vector representative of the direction detected has the advantage of having more possibilities of parameter values. In addition, each component of the vector representative of the detected direction can control a parameter value of a distinct audiovisual effect. In embodiments, the direction of cutoff of the optical paths by the object is detected as a function of at least one signal output from at least one optical sensor representing the cutoff of the optical paths by the object of at least one three light beams defining a volume and the directional control means controls at least one parameter value of at least one audiovisual effect according to three components of a vector representative of the direction detected. These embodiments have the advantage of having more possibilities of parameter values of a controlled audiovisual effect. In addition, each component of the vector representative of the detected direction can control a parameter value of a distinct audiovisual effect.

In embodiments, the speed is measured as a function of the cut-off time of a signal output from at least one optical sensor representing the breaking of optical paths by the object of at least one light beam and of a predetermined dimension of the object.

The advantage of these embodiments is to require only two optical paths traversed by light beams. The energy consumption of the device is reduced. In embodiments, the measurement of the speed of the object is a function of a signal output from at least one optical sensor representing the cleavage of the optical paths by the object of at least two parallel light beams. The use of two parallel light beams to measure the cutoff speed of optical paths allows the user to choose any object to use the control device, such as a wand or fingers of the hand for example. In embodiments, the estimation of the longitudinal position of the crossing and the measurement of the speed of the object are as a function of a signal emerging from at least one optical sensor representing the cutting of the optical paths by the object of at least three light beams defining a volume.

These embodiments have the advantage of having greater precision in calculating the longitudinal position of the crossing and the speed of the object. In embodiments, the device that is the subject of the present invention comprises means for converting each parameter value into a value represented by the MIDI protocol (acronym for "Musical Instrument Digital Interface"). The advantage of these embodiments is to be able to use the device object of the present invention as a musical instrument. According to a second aspect, the present invention provides a method of operating a device according to the present invention, which comprises the following steps: generating at least two optical paths traversed by non-parallel light beams between at least one optical sensor and at least one emitter of at least one light beam; measurement of the speed of an object traversing at least two light beams as a function of a signal emerging from at least one optical sensor representing the cutting of the paths; optical object - 3028655 5 - estimation of the longitudinal position of the crossing of the object as a function of a signal coming from at least one optical sensor representing the cutting of optical paths by the object of at least two non-parallel light beams and control of a parameter value of an audiovisual effect according to the estimated longitudinal position. Since the advantages, aims and particular characteristics of the method that are the subject of the present invention being similar to those of the device that is the subject of the present invention, they are not recalled here. According to a third aspect, the present invention aims at an audiovisual system which comprises: at least one device which is the subject of the present invention; means for transforming each parameter value of an audiovisual effect into a control signal of a sound and / or visual effect; and a transducer converting the control signal into sound and / or visual effect. The advantage of these embodiments is to have a system for producing a sound and / or visual effect according to the movements made by the user facing the light beams. In embodiments, the transducer includes an electroacoustic transducer so that the sound signal emitted by the transducer depends on the movements of a user facing the light beams. The connection of a device object of the present invention with an electroacoustic transducer has the advantage of using the system as a musical instrument.

BRIEF DESCRIPTION OF THE FIGURES Other particular advantages, aims and features of the invention will emerge from the following nonlimiting description of at least one particular embodiment of a control device and a method of implementation. 30 of such a device, with reference to the accompanying drawings, in which: - Figure 1 shows, schematically, a first particular embodiment of a device object of the present invention, - Figure 2 shows, schematically, a second particular embodiment of a device which is the subject of the present invention, FIG. 3 is a diagrammatic representation of a third particular embodiment of a device which is the subject of the present invention, FIG. 4, a particular embodiment of a device which is the subject of the present invention; and FIG. 5 schematically represents a fifth embodiment of the invention. particular isation of a device object of the present invention. Description of Exemplary Embodiments of the Invention It is already noted that the figures are not to scale.

The present description is given in a non-limiting manner, each feature of an embodiment being combinable with any other feature of any other embodiment in an advantageous manner. It is noted that the term "one" is used in the sense of "at least one". FIG. 1 shows a particular embodiment of a control device which is the subject of the present invention. The device 10 comprises a structural element 100 on which are fixed the means for generating two optical paths and in particular the transmitters 105a and 105b, at least one light beam 110a or 110b, and the optical sensor 115. The element The structural member may be a metal structure including the emitters 105a and 105b and the optical sensor 115. The structural member may comprise two independent supports pinched to a surface such as a table, for example. One of the supports may comprise at least one transmitter, 105a or 105b, the other support comprising at least one optical sensor 115. An emitter, 105a or 105b, of at least one light beam, 110a or 110b, may comprise a laser, an emitter of at least two laser beams, an emitter of at least two beams of distinct wavelengths, an emitter of at least two beams whose activation is alternated and or - any other focused light transmitter. An emitter 105a or 105b may emit several light beams 110a or 110b. Each transmitter, 105a or 105b, may be of different type. Preferably, the device 10 which is the subject of the present invention comprises two transmitters 105a and 105b. The transmitter 105a emitting a light beam 110a, the transmitter 105b emitting a light beam 110b. An optical sensor 115 may comprise: a photoconductive cell, a photodiode, a phototransistor, a CCD sensor (acronym for "Torque Charge Device"), a CMOS sensor (acronym for "Complementary Metal Oxide Semiconductor"). in English) and / or 10 - any other optical sensor. An optical sensor 115 may include a wavelength discrimination filter. An optical sensor 115 may comprise diffraction means of at least one captured light beam. An optical sensor 115 can pick up a plurality of light beams, 110a and 110b. Each optical sensor 115 may be of a different type. Preferably, the device 10, object of the present invention, comprises an optical sensor sensing the two light beams 110a and 110b respectively from the two transmitters 105a and 105b. In embodiments, discrimination of the light beams 110a and 110b is effected by diffraction.

Preferably, each light beam 110a, 110b is a single wavelength beam. The light beams 110a and 110b have the same wavelength and are activated alternately. The discrimination of the light beams 110a and 110b is effected by means of the alternative activation. At least two light beams 110a, 110b are nonparallel.

In embodiments, the means for generating two optical paths traversed by non-parallel light beams 110a and 110b comprising at least one optical sensor 115 and at least one transmitter, 105a or 105b, comprise at least one mirror. The mirror can be semi-reflective. For example, a light beam 110a or 110b from an emitter 105a or 105b is partially diffracted and partially reflected by the mirror. The diffracted portion of the light beam, 110a or 110b, travels through an optical path. The reflected part of the light beam, 110a or 110b, goes through another optical path.

The optical sensor 115 generates at least one electrical signal 120 representative of the cutoff of at least one light beam, 110a or 110b, picked up. Each electrical signal 120 is transmitted to: - means 145 for measuring the speed 150 of an object passing through at least two light beams, 110a and 110b, as a function of a signal 120 coming out of at least one optical sensor 115 representing the cutting of the optical paths by an object, - estimation means 125 of the longitudinal position 130 of the crossing of the object as a function of a signal 120 coming out of at least one optical sensor 115 representing the cut-off of the optical paths through the object of at least two light beams, 110a and 110b, non-parallel and - detecting means 165 of the breaking direction 170 of the optical paths by the object as a function of at least one outgoing signal 120 at least one optical sensor 115 representing the cutting of optical paths by the object of at least two light beams, 110a and 110b. At least one dimension d of the object is predetermined and previously recorded by the measuring means 145 of the speed of the object. Preferably, the object is a cylinder trunk with a circular guide curve located in a plane perpendicular to the generator, such as a rod for example. The predetermined dimension is the diameter of the cylinder trunk. It is recalled that a cylinder is a surface in the space defined by a line, called generator, passing through a variable point describing a closed plane curve, called the directing curve, and keeping a fixed direction. The measuring means 145 of the speed of the object determine, for at least one beam, 110a or 110b, the so-called "cutoff duration" during which the beam, 110a or 110b, has not been picked up by the optical sensor 115. The duration of the cutoff is determined by means of the electrical signal 120. The speed of the object is obtained by dividing the predetermined dimension d by the cut-off time. In embodiments, the cut-off time for each beam, 110a and 110b, is determined. The speed is determined with respect to an average of the cut-off times. The measured speed 150 is then transmitted: to control means 155 called "speed control means" of a parameter value 160 of an audiovisual effect as a function of the measured speed 150 and to the means of control. estimate 125.

The longitudinal position 130 of the crossing of the object of at least two light beams, 110a and 110b, is determined by calculating the so-called "transit time" duration. The crossing time is the time between a characteristic instant of the electrical signal 120 when a first beam, 110a or 110b, is not picked up by an optical sensor 115 and a corresponding characteristic time of the electrical signal 120 when a second beam , 110a or 110b, is not captured by an optical sensor 115. For example, the characteristic moment may be the start time of the cutting of the light beam, 110a or 110b, or the end time of the cutoff the light beam, 110a or 110b. The start time of the cutoff and the end time of cutoff 15 each corresponding to a change of state of the electrical signal 120. The longitudinal position 130 is determined by multiplying the crossing time by the predetermined dimension d divided by the cut-off time. The longitudinal position 130 can be determined by multiplying the measured speed 150 by the traversing time.

The longitudinal position 130 is transmitted to control means 135 called "position control means" of a parameter value 140 of an audiovisual effect as a function of the estimated longitudinal position 130. The detection means 165 detect the direction of rotation. switching off according to a characteristic instant of the electrical signal 120 when a first light beam, 110a or 110b, is not picked up by an optical sensor 115 and a corresponding characteristic instant of the electrical signal 120 when a second light beam, 110a or 110b, is not picked up by an optical sensor 115. The cutoff direction 170 is in the direction of the first beam, 110a or 110b, which is not picked up by an optical sensor 115 towards the second beam. beam, 110a or 110b, which is not picked up by an optical sensor 115. The breaking direction 170 is transmitted to control means 175 called "directional control means" of a parameter value 18 0 of an audiovisual effect according to the direction 170 detected.

Conversion means 185 converts each parameter value 140, 160 and 180 to a value represented according to the MIDI protocol (acronym for "Musical Instrument Digital Interface" in English) 190. In embodiments, the conversion means 185 are optional.

The measuring means 145, the estimation means 125, the determining means 165, the position control means 135, the speed control means 155, the directional control means 175 and the conversion means 185 may each be a microprocessor associated with a program memory comprising instructions for carrying out the steps of the method which is the subject of the present invention. Preferably, a microprocessor associated with a program memory comprising instructions for carrying out the steps of the method that is the subject of the present invention performs the functions of the means 125, 135, 145, 155, 165, 175 and 185. FIG. particular embodiment of a device object of the present invention. The device 20 comprises a structural element 200 on which are fixed the means for generating three optical paths and in particular the transmitters 205a and 205b, at least one light beam 210a, 210b or 210c, and the optical sensors 215a and 215b. The structural member may be a metal structure including emitters 205a and 205b and optical sensors 215a and 215b. The structural element may comprise two independent supports fixed by pinching on a surface, such as a table, for example. One of the supports may comprise at least one transmitter, 205a or 205b, the other support comprising at least one optical sensor, 215a or 215b.

An emitter 205a or 205b of at least one light beam 210a, 210b or 210c may comprise: a laser, an emitter of at least two laser beams, an emitter of at least two beams of lengths separate waveforms, - an emitter of at least two beams whose activation is alternated and / or - any other focused light emitter. An emitter 205a or 205b may emit several light beams 210a, 210b or 210c. Each transmitter, 205a or 205b, may be of different type.

Preferably, the transmitter 205a emits a light beam 210a. The transmitter 205b emits two light beams, 210b and 210c. The light beam 210b is non-parallel to the beam 210a, and the light beam 210c is parallel to the beam 210a.

An optical sensor, 215a or 215b, may comprise: a photoconductive cell, a photodiode, a phototransistor, a CCD sensor (acronym for "Torque Charge Device"), a CMOS sensor (acronym for Complementary Metal Oxide Semiconductor "and / or - any other optical sensor. In embodiments, an optical sensor, 215a or 215b, may include a wavelength discrimination filter. An optical sensor, 215a or 215b may comprise diffraction means of at least one light beam, 210a, 210b or 210c, captured. A discrimination of at least two light beams, 210a, 210b or 210c, can be effected by diffraction. An optical sensor 215a or 215b can pick up a plurality of light beams 210a, 210b or 210c. Each optical sensor, 215a or 215b, may be of different type.

Preferably, the device 20 which is the subject of the present invention comprises two optical sensors 215a and 215b. The optical sensor 215a captures the light beams 210a and 210b. The optical sensor 215a has means for discriminating the light beams 210a and 210b. The optical sensor 215b captures the light beam 210c.

Preferably, each light beam 210a, 210b, 210c is a single wavelength beam. In embodiments, the means for generating three optical paths comprise at least one mirror. The mirror can be semi-reflective. For example, a light beam 210a, 210b or 210c from an emitter 205a or 205b is partially diffracted and partially reflected by the mirror. The diffracted portion of the light beam, 210a, 210b or 210c, travels through an optical path. The reflected part of the light beam, 210a, 210b or 210c, goes through another optical path.

The optical sensor 215a generates an electrical signal 220a representative of the cutoff of at least one light beam, 210a or 210b, captured. The electrical signal 220a is transmitted to: measuring means 245 of the speed 250 of an object passing through at least two light beams, 210a, 210b or 210c, as a function of at least one signal, 220a or 220b, outputting at least one optical sensor, 215a or 215b, representing the cutting of the optical paths by an object, - estimation means 225 of the longitudinal position 230 of the crossing of the object as a function of at least one signal, 220a or 220b, emerging from at least one optical sensor, 215a or 215b, representing the cleavage of optical paths by the object of at least two light beams, 210a, 210b or 210c, and - detection means 265 of the direction of cleavage 270 of the optical paths by the object as a function of at least one signal 220a, 220b issuing from at least one optical sensor representing the cleavage of the optical paths by the object of at least three light beams 210a , 210b and 210c. The optical sensor 215b generates an electrical signal 220b representative of the cutoff of at least one light beam 210c captured. The electrical signal 220b is transmitted to the measuring means 245, the estimation means 225 and the detection means 265.

The light beams 210a and 210c are parallel, the speed 250 of the object passing through the light beams 210a and 210c is measured by means of the electrical signals 220a and 220b. The speed 250 is measured by the calculation of the transit time. The crossing time is the time between: a characteristic instant of the electrical signal 220a when the light beam 210a is not picked up by an optical sensor 215a and a corresponding characteristic instant of the electric signal 220b when the second light beam 210c does not is not picked up by the optical sensor 215b or - a characteristic instant of the electrical signal 220b when the light beam 210c is not picked up by an optical sensor 215b and a corresponding characteristic instant of the electric signal 220a when the second light beam 210a n is not picked up by the optical sensor 215a. The distance between the beams 210c and 210a is predetermined and previously recorded by the measuring means 245. The speed 250 is measured by dividing the distance between the beams 210c and 210a by the crossing time of the distance between the beams 210c and 210c. 210a. In embodiments, the measuring means 245 measures the speed as described in FIG. 1, as a function of the beams 210a and 210b and / or as a function of the beams 210b and 210c. The measured speed 250 may be an average of different speeds calculated from several pairs of light beams 210a, 210b, 210c. The measured speed 250 is transmitted to control means 255 called "speed control means" of a parameter value 260 of an audiovisual effect as a function of the measured speed 250 and to the estimation means 225. longitudinal 230 is estimated according to one of the detailed embodiments with reference to FIG. 1, as a function of the signals 220a and 220b representing the cut-off of the light beams 210a, 210b and 210c by an object.

The longitudinal position 230 is transmitted to control means 235 called "position control means" of a parameter value 240 of an audiovisual effect as a function of the estimated longitudinal position 230. The detection means 265 detect the direction of rotation. Preferably, two components of the cutoff direction 270 are detected, an axial direction component and a longitudinal direction component. The axial direction component is a component perpendicular to the parallel beams 210a and 210c. The longitudinal direction component is a component parallel to the parallel beams 210a and 210c.

The axial direction component is detected as a function of the signals 220a and 220b. The axial direction component is the direction of the first cut of a light beam, 210a, 210b or 210c, towards the cutting of a second light beam, 210a, 210b or 210c. The axial direction component may be beam 210a to beam 210c or beam 210c to beam 210a. Each cutoff of each light beam 210a, 210b or 210c is determined by analysis of the electrical signals 220a and 220b. The detection of the cutoff order of the light beams is determined by a time comparison of the electrical signals 220a and 220b.

The longitudinal direction component is detected as a function of the electrical signals 220a and 220b. The longitudinal direction component is determined by analysis of electrical signals 220a and 220b. The longitudinal direction component may be in the direction of the optical path followed by one of the parallel light beams 210a or 210c or in the opposite direction. Preferably, the longitudinal direction component is measured, as a function of the determined axial direction component and by comparison of the estimated longitudinal position between the light beams 210a and 210b and of an estimated longitudinal position between the light beams 210b and 210c 10 calculated by the estimation means 225. The components of the cutoff direction 270 are transmitted to control means 275 called "directional control means" a parameter value 280 of an audiovisual effect depending on the detected direction 270.

Preferentially, each component of the cutoff direction 270 controls a parameter value of an audiovisual effect. Converting means 285 converts each parameter value 240, 260 and 280 to a value represented according to the MIDI protocol (acronym for "Musical Instrument Digital Interface") 290. In some embodiments, the conversion means 285 are optional. . The measuring means 245, the estimation means 225, the determination means 265, the position control means 235, the speed control means 255, the directional control means 275 and the conversion means 285 may each be a microprocessor associated with a program memory including instructions for carrying out the steps of the method object of the present invention. Preferably, a microprocessor associated with a program memory comprising instructions for carrying out the steps of the method that is the subject of the present invention performs the functions of the means 225, 235, 245, 255, 265, 275 and 285.

FIG. 3 shows a particular embodiment of a device that is the subject of the present invention. The device 30 comprises a structural element 300 on which are fixed the means for generating three optical paths and in particular the emitters 305a, 305b and 305c, at least one light beam 310a, 310b or 310c, and the 3028655 sensors. 315a, 315b and 315c. The structural element may be a metal structure comprising the emitters 305a, 305b and 305c, and the optical sensors 315a, 315b and 315c. The structural element may comprise two independent supports fixed by pinching on a surface, such as a table, for example.

One of the supports may comprise at least one transmitter, 305a, 305b or 305c, the other support comprising at least one optical sensor, 315a, 315b or 315c. An emitter, 305a, 305b or 305c, of at least one light beam, 310a, 310b or 310c may comprise: - a laser, - a transmitter of at least two laser beams, - a transmitter of at least two beams of distinct wavelengths, - a transmitter of at least two beams whose activation is alternated and / or - any other focused light emitter.

An emitter 305a, 305b or 305c may emit several light beams 310a, 310b or 310c. Each transmitter, 305a, 305b or 305c may be of different type. Preferably, the transmitter 305a emits a light beam 310a. The transmitter 305b emits a light beam 310b and the transmitter 305c emits a light beam 310c. The light beams 310a, 310b and 310b form a volume. An optical sensor, 315a, 315b or 315c, may comprise: a photoconductive cell, a photodiode, a phototransistor, a CCD sensor (acronym for "Torque Charge Device"), a CMOS sensor (acronym for "Complementary Metal Oxide Semiconductor" and / or - any other optical sensor. In embodiments, an optical sensor 315a, 315b or 315c may include a wavelength discrimination filter. An optical sensor, 315a, 315b or 315c may comprise diffraction means of at least one light beam, 310a, 310b or 310c, captured. Discrimination of the light beams, 310a, 310b or 310c, can be effected by diffraction. An optical sensor, 315a, 315b or 315c, can pick up a plurality of light beams, 310a, 310b or 310c. Each optical sensor, 315a, 315b or 315c, may be of different type. Preferably, the device 30 which is the subject of the present invention comprises three optical sensors 315a, 315b and 315b. The optical sensor 315a picks up the light beam 310a. The optical sensor 315b captures the light beam 310b. The optical sensor 315c captures the light beam 310c. Preferably, each light beam 310a, 310b, 310c is a single wavelength beam. The light beams 310a, 310b and 310c form a volume. At least two light beams 310a, 310b, 310c are nonparallel. In embodiments, the means for generating three optical paths comprise at least one mirror. The mirror can be semi-reflective. For example, a light beam, 310a, 310b, or 310c, from an emitter, 305a, 305b, or 305c, is partially diffracted and partially reflected by the mirror. The diffracted portion of the light beam, 310a, 310b or 310c, traverses an optical path. The reflected part of the light beam, 310a, 310b or 310c, goes through another optical path. The optical sensor 315a generates an electrical signal 320a representative of the cutoff of at least one light beam 310a picked up. The electrical signal 320a is transmitted to: measuring means 345 of the speed 350 of an object passing through at least two light beams 310a, 310b, 310c as a function of at least one signal 320a, 320b, 320c emerging from at least one optical sensor 315a, 315b, 315c representing the cutting of the optical paths by an object, means for estimating 325 of the longitudinal position 330 of the crossing of the object as a function of at least one signal 320a, 320b, 320c issuing from at least one optical sensor 315a, 315b, 315c representing the cutting of the optical paths by the object of at least two light beams 310a, 310b, 310c and - detecting means 365 of the breaking direction 370 of the optical paths 30 by the object as a function of at least one signal 320a, 320b, 320c coming out of at least one optical sensor representing the cutting of the optical paths by the object of at least three light beams 310a, 310b and 310c. The optical sensor 315b generates an electrical signal 320b representative of the cutoff of at least one light beam 310b captured. The electrical signal 320b 3028655 17 is transmitted to the measuring means 345, the estimation means 325 and the detection means 365. The optical sensor 315c generates an electrical signal 320c representative of the cut of at least one light beam 310c captured. The electrical signal 320c is transmitted to the measuring means 345, the estimation means 325 and the detection means 365. The speed 350 of the object passing through the light beams 310a, 310b and 310c is measured by means of at least two electrical signals, 320a, 320b or 320c. The speed 350 is measured according to one of the embodiments defined with reference to Figs. 1 and 2. The measured speed 350 may be an average of different speeds calculated from several pairs of light beams 310a, 310b or 310c. The measured speed 350 is then transmitted to control means 355 called "speed control means" of a parameter value 360 of an audiovisual effect as a function of the measured speed 350 and the estimation means 325. The longitudinal position 330 is estimated according to one of the detailed embodiments with reference to FIG. 1. The longitudinal position 330 may be an average of longitudinal positions 330 calculated for at least two light beams 310a, 310b or 310c. The longitudinal position 330 is transmitted to control means 335 called "position control means" of a parameter value 340 of an audiovisual effect as a function of the estimated longitudinal position 330.

The detection means 365 detect the cutoff direction 370. Preferably, three components of the cutoff direction 370 are detected, a direction component ab, a direction component bc, and a direction component ac. The direction component ab is a component determined with respect to the plane formed by the light beams 310a and 310b. The direction component bc is a component determined with respect to the plane formed by the light beams 310b and 310c. The direction component ac is a component determined with respect to the plane formed by the light beams 310a and 310c.

Preferably, each direction component is determined as a function of an estimated longitudinal position between the light beams 310a and 310b, of an estimated longitudinal position between the light beams 310b and 310c and of an estimated longitudinal position between the light beams. 310a and 310c respectively. The components of the cutoff direction 370 are transmitted to control means 375 called "directional control means" of a parameter value 380 of an audiovisual effect as a function of the detected direction 370.

Preferentially, each component of the cutoff direction 370 controls a parameter value of at least one audiovisual effect. Converting means 385 converts each parameter value 340, 360 and 380 to a value represented according to the MIDI protocol (acronym for "Musical Instrument Digital Interface") 390.

The measuring means 345, the estimation means 325, the determining means 365, the position control means 335, the speed control means 355, the directional control means 375 and the conversion means 385 may each be a microprocessor associated with a program memory comprising instructions for carrying out the steps of the method which is the subject of the present invention. Preferably, a microprocessor associated with a program memory comprising instructions for carrying out the steps of the method that is the subject of the present invention provides functions of means 325, 335, 345, 355, 365, 375 and 385. FIG. particular embodiment 40 of a method object of the present invention. The method 40 comprises the following steps: - generation 41 of at least two optical paths traversed by light beams, 110a, 110b, 210a, 210b, 210c, 310a, 310b or 310c, non-parallel between at least one optical sensor, 115 , 215a, 215b, 315a, 315b or 315c, and at least one transmitter 105a, 105b, 205a, 205b, 305a, 305b or 305c, of at least one light beam, 110a, 110b, 210a, 210b, 210c, 310a , 310b or 310c, - measuring 42 of the speed, 150, 250 or 350, of an object passing through at least two light beams, 110a, 110b, 210a, 210b, 210c, 310a, 310b or 310c, as a function of a signal, 120, 220a, 220b, 320a, 320b or 320c, emerging from at least one optical sensor, 115, 215a, 215b, 315a, 315b or 315c, representing the cutting of the optical paths by the object, - estimation 43 of the longitudinal position, 130, 230 or 330, of the crossing of the object as a function of an outgoing signal, 120, 220a, 220b, 320a, 320b or 320c, of at least one optical sensor, 115, 215a, 215b, 315a, 315b or 315c, representing the cutting of the optical paths by the object of at least two light beams, 110a, 110b, 210a, 210b, 210c, 310a, 310b or 310c, nonparallel and - control 44 of a value a parameter, 140, 240 or 340, of an audiovisual effect as a function of the estimated longitudinal position, 130, 230 or 330. The generation steps 41, measurement 42, estimation 43, command 44 are preferably performed by means of an embodiment of a device, 10, 20, 30 or one of the embodiments detailed above. In embodiments, the method 40 comprises at least one of the following 15 steps: control of a parameter value, 160, 260 or 360, of an audiovisual effect as a function of the measured speed, 150, 250 or 350 detecting the cutoff direction, 170, 270 or 370, of the optical paths by the object as a function of at least one signal, 120, 220a, 220b, 320a, 320b, or 320c, outputting from at least one optical sensor, 115, 215a, 215b, 315a, 315b or 315c, showing the breaking of optical paths by the object of at least two light beams, 110b, 210a, 210b, 210c, 310a, 310b or 310c, - control of a parameter value, 180, 280 or 380, of an audio-visual effect as a function of the detected direction, 170, 270 or 370, 25 - conversion of at least one parameter value, 140, 240, 340, 160 , 260, 360, 180, 280 or 380, in value represented according to the MIDI protocol, 190, 290 or 390. It is observed in FIG. 5, a particular embodiment of an audiovisual system 50 object of the present invention.

An embodiment, 10, 20 or 30, of a device according to the present invention transmits each parameter value, 140, 160 and 180, or 240, 260 and 280, or 340, 360 and 380, in represented value. according to the MIDI protocol, 190, 290 or 390, to transforming means 500 of each parameter value of an audiovisual effect, represented according to the MIDI protocol, 190, 290 or 390, into a control signal 505. a sound and / or visual effect. In embodiments, the parameter values of an audiovisual effect, 140, 160, and 180, or 240, 260, and 280, or 340, 360, and 380, are transmitted directly to the transforming means 500. The transformation means 500 transforming the parameter values of an audiovisual effect, 140, 160 and 180, or 240, 260 and 280, or 340, 360 and 380 into a control signal 505 of a sound and / or visual effect. The control signal 505 is transmitted at the input of a transducer 510 converting the control signal 505 into sound and / or visual effect. Preferably, the transducer 510 comprises an electroacoustic transducer so that the sound signal emitted by the transducer depends on the movements of a user facing the light beams of an embodiment of a device that is the subject of the present invention.

In embodiments, the audiovisual system device 50 is one of the embodiments described above.

Claims (12)

  1. REVENDICATIONS1. Device (10, 20, 30) for controlling a parameterizable audiovisual effect, characterized in that it comprises: - means for generating at least two optical paths traversed by light beams (110a, 110b, 210a, 210b , 210c, 310a, 310b, 310c) having at least one optical sensor (115, 215a, 215b, 315a, 315b, 315c) and at least one transmitter (105a, 105b, 205a, 205b, 305a, 305b, 305c) at least one light beam; means for measuring (145, 245, 345) the speed (150, 250, 350) of an object passing through at least two light beams as a function of a signal (120, 10); 220a, 220b, 320a, 320b, 320c) issuing from at least one optical sensor representing the cutting of the optical paths by the object, - estimation means (125, 225, 325) of the longitudinal position1130, 230, 330 ) of the crossing of the object as a function of a signal coming from at least one optical sensor representing the cutting of the optical paths by the object of at least two beams read non-parallel films and - control means (135, 235, 335) called "position control means" of a parameter value (140, 240, 340) of the audiovisual effect as a function of the estimated longitudinal position. 20
  2. 2. Control device (10, 20, 30) according to claim 1, which comprises control means (155, 255, 355) called "speed control means" of a parameter value (160, 260, 360 ) the audiovisual effect as a function of the measured speed (150, 250, 350). 25
  3. Control device (10, 20, 30) according to one of claims 1 or 2, which comprises - detecting means (165, 265, 365) of the cutting direction (170, 270, 370) of at least two optical paths by the object as a function of at least one signal (120, 220a, 220b, 320a, 320b, 320c) outputting from an optical sensor (115, 215a, 215b, 315a, 315b, 315c) representing the cutting of the optical paths by the object of at least two light beams (110a, 110b, 210a, 210b, 210c, 310a, 310b, 310c) and - control means (175, 275 , 375) said "directional control means" of a parameter value (180, 280, 380) of the audiovisual effect as a function of the direction detected.
  4. Control device (20, 30) according to claim 3, wherein: - the direction of cut (270, 370) of the optical paths by the object is detected as a function of at least one signal (220a, 220b, 320a, 320b, 320c) issuing from at least one optical sensor (215a, 215b, 315a, 315b, 315c) representing the cutting of optical paths by the object of at least three light beams (210a, 210b, 210c, 310a 310b, 310c) and - the directional control means (275, 375) controls at least one parameter value (280, 380) of the audiovisual effect as a function of two components of a vector representative of the detected direction.
  5. 5. Control device (30) according to one of claims 3 or 4, in which: the direction of interruption (370) of the optical paths by the object is detected as a function of at least one signal (320a, 320b, 320c) emerging from at least one optical sensor (315a, 315b, 315c) representing the cutting of the optical paths by the object of at least three light beams (310a, 310b, 310c) defining a volume and - the Directional control means (375) controls at least one parameter value (380) of the audiovisual effect as a function of three components of a vector representative of the detected direction.
  6. The control device (10, 20, 30) according to one of claims 1 to 5, wherein the speed measuring means (145, 245, 345) (150, 250, 350) are configured to measure the the speed of the object as a function of the cut-off time of a signal (120, 220a, 220b, 320a, 320b, 320c) issuing from at least one optical sensor (115, 215a, 215b, 315a, 315b, 315c) ) representing the cutting of the optical paths by the object of at least one light beam (110a, 110b, 210a, 210b, 210c, 310a, 310b, 310c) and a predetermined dimension of the object. 3028655 23
  7. The control device (20) according to one of claims 1 to 6, wherein the speed measuring means (245) (245) is configured to measure the speed of the object is in accordance with a signal (220a, 220b) issuing from at least one optical sensor (215a, 215b) representing the cutting of optical paths by the object of at least two parallel light beams (210a, 210c).
  8. 8. Device (30) for control according to one of claims 1 to 7, wherein the estimating means (325) of the longitudinal position (330) of the bushing and the means (245) for measuring the speed ( 350) of the object are configured to estimate the longitudinal position and the velocity as a function of a signal (320a, 320b, 320c) issuing from at least one optical sensor (315a, 315b, 315c) representing the breaking of the paths optics by the object of at least three light beams (310a, 310b, 310c) defining a volume.
  9. 9. Control device (10, 20, 30) according to one of claims 1 to 8, which comprises means for converting (185, 285, 385) each parameter value (140, 160, 180, 240, 260 , 280, .340, 360, 380) represented by the MIDI protocol (190, 290, 390) (acronym for "Musical Instrument Digital Interface").
  10. 10. Method (40) for operating a device (10, 20, 30) for controlling a parameterizable audiovisual effect according to one of claims 1 to 9, characterized in that it comprises the following steps - generation ( 41) of at least two optical paths traversed by non-parallel light beams (110a, 110b, 210a, 210b, 210c, 310a, 310b, 310c) between at least one optical sensor (115, 215a, 215b, 315a, 315b, 315c) and at least one transmitter (105a, 105b, 205a, 205b, 305a, 305b, 305c) of at least one light beam, - measuring (42) the speed (150, 250, 4350) of a traversing object at least two light beams as a function of a signal (120, 220a, 220b, 320a, 320b, 320c) issuing from at least one optical sensor representing the cutting of optical paths by the object, - estimating (43) the longitudinal position (130, 230, 330) of the traversal of the object as a function of a signal emerging from at least one optical sensor 3028655 24 representing the cutting of the optical paths by the object of at least two non-parallel light beams and - controlling (44) a parameter value (140, 240, 240) of an audiovisual effect according to the estimated longitudinal position.
  11. 11. System (50) audiovisual, which comprises - at least one device (10, 20, 30) according to one of claims 1 to 9, - means for transforming (500) each parameter value (140, 160, 180, 190, 240, 260, 280, 290, 340, 360, 380, 390) of an audiovisual effect into a control signal (505) of a sound and / or visual effect and - a transducer (510) converting the control signal into sound and / or visual effect.
  12. 12. The audiovisual system (50) of claim 11, wherein the transducer (510) includes an electroacoustic transducer such that the sound signal emitted by the transducer is dependent on the movements of a user facing the light beams.
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PCT/FR2015/053108 WO2016079420A1 (en) 2014-11-17 2015-11-17 Control device, operation method of such a device and audiovisual system
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US5017770A (en) * 1985-10-07 1991-05-21 Hagai Sigalov Transmissive and reflective optical control of sound, light and motion
FR2590033A1 (en) * 1985-11-13 1987-05-15 Guerre Philippe Device for the three-dimensional detection of an object by laser light, particularly for a show
DE4226661A1 (en) * 1992-06-23 1994-01-05 Friedrich Foerster Optical information input esp. for electronic music prodn. - involves control of instrument by photoreceiver of signal from reflector movable within sweep of deflected laser beam
US6489550B1 (en) * 1997-12-11 2002-12-03 Roland Corporation Musical apparatus detecting maximum values and/or peak values of reflected light beams to control musical functions
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FR3028655B1 (en) 2019-10-18
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WO2016079420A1 (en) 2016-05-26

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