Abstract: The invention relates to a method for measuring the output power produced in a device having a crankset, including the following steps: a) measuring the orthogonal force (F) exerted on at least one pedal (9) of the crank (3); b) determining the angular velocity of the crank; and c) deducing the tangential force (FT) exerted on the crank and the power, using a pre-established model of the distribution of the force exerted on the actuating member as a function of the angular velocity,

Abstract: Musical rendition is provided through the use of microsensors, in particular of accelerometers and magnetometers or rate gyros, and through an appropriate processing of the signals from the microsensors. In particular, the processing uses a merging of the data output from the microsensors to eliminate false alarms in the form of movements of the user unrelated to the music. The velocity of the musical strikes is also measured. Embodiments make it possible to control the running of mp3 or wav type music files to be played back.

Abstract: Controlling playback by strokes entered via a MIDI interface or measured by one or more motion sensors is disclosed. The variations of the playback speed can also be smoothed to ensure a better musical rendition. The velocity of the strokes can also be taken into account to control the volume of the audio output and other gestures or strokes can also act on the tremolo or vibrato.

Abstract: A stand-alone device for navigating in a space having at least three dimensions comprises a housing capable of being manipulated by a user. The housing houses means for generating signals that represent the inclination of the housing according to its pitch axes, rolling axes and yaw axes, and houses at least one isometric device that generates a control signal of a bi-directional displacement according to at least one axis of said space. The invention is used, in particular, for navigating in a virtual space.

Abstract: The invention concerns a device for capturing the motion of a structure consisting of N articulated segments, characterized in that it comprises: first means (ML) that deliver at least one item of information able to restore an absolute acceleration vector {right arrow over (a)}1 of a point on the segment of rank 1 in a reference frame forming a reference, at successive times tk, k being an integer number greater than or equal to 1, and second measuring means (MD1, MDn) distributed over the various segments and which deliver, for each segment of rank 1 to N, at each time tk, a measurement (M1, Mn) representing an orientation vector ({right arrow over (?)}1, {right arrow over (?)}n) of the segment in the reference frame. Application to biomechanical analysis, telemanipulation, animation of characters, etc.

Abstract: The invention relates to a computer-aided prerecorded-music-interpretation system. The system comprises at least one musical actuator (A1, A2) actuatable by an interpreting artist user, memory means for storing musical information (MM) relating to the score of a piece of music to be interpreted by the user, and means for transmitting the musical information to an electronic/computerized device (A4) adapted for producing audio signals on the basis of the musical information received. The memory (MM) for the musical information defines the totality of the musical events (EM) constituting the piece of music to be interpreted. The invention is usable in the field of prerecorded-music interpretation.

Abstract: A substrate table for an immersion lithographic apparatus is disclosed having a recess, configured to receive a substrate of a given size, and a fluid extraction system, configured to extract fluid from a gap between the edge of the substrate and the edge of the recess, the fluid extraction system configured such that the rate of flow of fluid extracted from a localized section of the gap is greater than the rate of flow of fluid extracted from another section of the gap.

Abstract: A set of sensors is placed on a form (a curve or a surface), wherein each sensor supplies representative signals of the orientation of the form at the position of this sensor; a model of the form is selected; based on the signals, the parameters of the model are determined and the distances which separate the sensors are measured; and, based on the parameters of the model and the distance measurements, the spatial distribution of the points of the form are determined.

Abstract: According to an exemplary embodiment, a set of three-dimensional force sensors is used, distributed on one face of a support. Each sensor outputs signals representative of a force applied by an object on this sensor. An electronic processing unit determines components of forces applied on the sensors by the object and also output the relative tangential velocity of at least one point on the object that is in contact with one of the sensors and, advantageously the point at which the component of the force applied by the object on this sensor and normal to the face of the support, is a maximum.

Abstract: The invention concerns a device for capturing the motion of a structure consisting of N articulated segments, characterised in that it comprises: first means (ML) that deliver at least one item of information able to restore an absolute acceleration vector {right arrow over (a)}1 of a point on the segment of rank 1 in a reference frame forming a reference, at successive times tk, k being an integer number greater than or equal to 1, and second measuring means (MD1, MDn) distributed over the various segments and which deliver, for each segment of rank 1 to N, at each time tk, a measurement (M1, Mn) representing an orientation vector ({right arrow over (?)}1, {right arrow over (?)}n) of the segment in the reference frame. Application to biomechanical analysis, telemanipulation, animation of characters, etc.

Abstract: A method for measuring movement of a solid, using an absolute measurement associated with a double integration measurement. The method can be applied in particular to sensing movements of the human body and includes a series of measurement of the acceleration of the solid and double integration of the measurements to obtain successive values of a first translation of the solid, and a series of absolute measurements of at least one second degree of freedom of the solid, namely a rotation, and this measurement of rotation is converted into a measurement of translation used to update the first translation.

Abstract: According to the invention, a set of sensors (4a) is placed on this shape (curve or surface), each sensor outputting signals representative of the orientation of the curve or the surface at the location of this sensor; a model of the curve or the surface is chosen; model parameters are determined from the signals; and the spatial distribution of the points on the geometric shape are determined using these parameters. The invention particularly applies to machining, joinery, masonry, and building domains.

Abstract: Process and acquisition device of a deformable geometrical form. A set of sensors (1) is placed on this form (a curve or a surface), wherein each sensor supplies representative signals of the orientation of the form at the position of this sensor; a model of the form is selected; based on the signals, the parameters of the model are determined and the distances which separate the sensors are measured; and, based on the parameters of the model and the distance measurements, the spatial distribution of the points of the form are determined. The invention applies especially to the fields of machining, joinery, masonry work and construction work.

Abstract: A capture device of the orientation of a solid comprising a sensor of angular position, capable of being affixed to the solid and supplying a measuring datum related to a real orientation of the solid, wherein the sensor is sensitive to gravity/magnetic field; calculation means for generating test data independent of any measuring datum and related to an estimated orientation of the solid; and means for modifying the estimated orientation by confrontation of the measuring datum and test data. A process including capturing a measuring datum related to a real orientation of the solid, the measuring datum originating from an angular position sensor sensitive to gravity/a magnetic field; establishing test data independent of any measuring datum and related to an estimated orientation of the solid; confronting the test data and the measuring datum; and establishing a new estimated orientation of the solid based on the result of the confrontation.

Abstract: The present invention relates to a device for detecting the orientation of a solid including a sensor of angular position, capable of being affixed to the solid and of supplying at least a measuring datum representative of the orientation of the solid. The device also includes means for generating test data representative of an estimated orientation of the solid, and means for modification of the estimated orientation of the solid by confrontation of the measuring datum and test data.

Abstract: The process comprises acquisition of experimental data from measurements of physical quantities by means of at least one sensor associated to the object. The process comprises a first reliable estimation of a first range of values with a first method. The process comprises at least one additional estimation of an additional range of values with a different method. The methods each present a predetermined reliability. The ranges of values are successively observed in order of decreasing reliability of the corresponding methods. Each additional range of values is compared with the range of values corresponding to the previous method according to said order. The additional range is chosen as result when the additional range is comprised in the range corresponding to one of the previous methods.

Abstract: A method for measuring movement of a solid, using an absolute measurement associated with a double integration measurement. The method can be applied in particular to sensing movements of the human body and includes a series of measurement of the acceleration of the solid and double integration of the measurements to obtain successive values of a first translation of the solid, and a series of absolute measurements of at least one second degree of freedom of the solid, namely a rotation, and this measurement of rotation is converted into a measurement of translation used to update the first translation.

Abstract: Process for estimating the motion phase of an object The process comprises acquisition of experimental data from measurements of physical quantities by means of at least one sensor associated to the object. The process comprises a first reliable estimation of a first range of values with a first method. The process comprises at least one additional estimation of an additional range of values with a different method. The methods each present a predetermined reliability. The ranges of values are successively observed in order of decreasing reliability of the corresponding methods. Each additional range of values is compared with the range of values corresponding to the previous method according to said order. The additional range is chosen as result when the additional range is comprised in the range corresponding to one of the previous methods.

Abstract: Apparatus and method for measuring friction forces. According to this invention that is particularly applicable to mats for the prevention of skin lesions, a set of three-dimensional force sensors (10) is used, distributed on one face of a support (4). Each sensor outputs signals representative of a force applied by an object (6) on this sensor. Electronic processing means (16) determine components of forces applied on the sensors by the object and also output the relative tangential velocity of at least one point on the object that is in contact with one of the sensors and, advantageously the point at which the component of the force applied by the object on this sensor and normal to the face of the support, is a maximum.

Abstract: The present invention relates to a capture device of the orientation of a solid comprising: at least a sensor (10a, 10b) of angular position, capable of being made solid with the solid and of supplying at least a measuring datum (?m) representative of the orientation of the solid, means (14) for generating test data (?t) representative of an estimated orientation of the solid, means (18) for modification of the estimated orientation of the solid by confrontation of the measuring datum and test data. Application to computer input peripherals, in the medical field.