Abstract: The inertial sensor comprises a piezoelectric plate having a vibrator member defined therein that carries excitation electrodes connected to an excitation circuit comprising conductor tracks carried by the piezoelectric plate, the excitation circuit including a disturbing circuit portion in which two conductor tracks extend on either side of a midplane and present a width less than 50 ?m, and preferably equal to 10 ?m, and are spaced apart by a distance of less than 100 ?m, and preferably equal to 40 ?m.

Abstract: The present invention is a modular garment having: a thick and relatively inflexible protective first garment, intended for optional wear; and an electronic garment having a flexible central part at the back and two side parts; the width of the central part is adjustable so that it can be made narrow or wide (depending on whether the electronic garment is worn on its own or over the first garment); several electrical and/or electronic devices are supported by the side parts; and at least one electrical cable runs across the inside face of the electronic garment between the electrical devices, the at least one electrical cable being attached to the side parts without being attached to the central part in front of which it runs freely along a curved path so as to be able to adapt to the modifications in the width of the central part.

Abstract: An optical imaging device for forming optical images of fingerprints of a finger, the device comprising: an optical plate having a portion at one end of a main face that is provided for illuminating the finger through the plate, the reflected light beam propagating with multiple reflections inside the plate to the other end thereof, which end presents an inclined end face; a focusing lens facing the end face with the lens having its axis situated in the midplane of the plate; and a mirror for directing the light beam leaving the end face onto the axis of the lens.

Abstract: The method of determining the speed of rotation of an axially symmetrical vibrating sensor of order 2. The method includes: performing a first evaluation of the speed of rotation while a vibration generated by the vibrating sensor lies in a first position relative to electrodes generating the vibration; applying a precession command so that the vibration comes successively into positions that are offset by 45°, 90°, and 135° relative to the first position; performing evaluations of the speed of rotation while the vibration lies in the offset positions; and taking a mean of the evaluations of the speed of rotation in the various positions of the vibration.

Abstract: An optical triangulation measuring device includes an emmiter that emits two alternating light beams with different wavelengths along the same path; a beam splitter; an optical separator that directs the alternating split beams towards the surfaces from which they are reflected; an optical combiner that collects the beams and directs them along a path; optronic sensors that receive two light images and to deliver a signal indicating the position of the energy barycenter a time synchronizer for the two alternating beams and the two images on the optronic sensors; and a processor for processing the signals from the optronic sensors in order to supply information relating to the position and inclination of the surface.

Abstract: A method of identifying an individual in which captured images are encrypted by a transformation function and superimposed over previously recorded encrypted images. The superimposition image thus formed is used for identity verification. If the verification is negative a looping step repeats the process until positive verification is achieved.

Abstract: The invention relates to an illuminator for a photolithography device. The invention comprises: a source (1?) of a light beam (10) which is used to illuminate a mask (8) and to expose an area of a wafer (W); at least one main array (4) of microlenses; and a shutter (6) consisting of at least one shutter plate (61) comprising at least one part (612) that is opaque to the light beam (10) and a plurality of parts (610) that are transparent to the beam, whereby said plate (61) can be moved in relation to the beam (10) along a direction of movement (X) that is essentially parallel to the plate, such that the opaque part (612) can at least partially block the light beam or such that the transparent parts can at least partially enable the passage of the light beam (10).

Abstract: The invention relates to a method for identification of a person by recognition of a digital fingerprint, whereby the characteristic points on a digitized image of a digital fingerprint (E) are determined and transmitted (16) to a bank holding (17) the characteristic points of a number of digital fingerprints for comparison and identification (18) of the person to whom the photographed fingerprint belongs. When the fingerprint (E) is taken on a curved surface (3) of an object (12), the digitised mage is transformed (13) into a plane-projection corrected digitised image, by means of an algorithm, in which the characteristic points are detected (15).

Abstract: A method of locating a moving element by determining a reference position and at least one overall protection limit on the basis of data from a group of satellites in a constellation of satellites. The method comprises the steps of selecting from the group of satellites a subgroup comprising at least five satellites, calculating positions from the data from the group and from the data from the subgroup, and calculating corresponding protection limits while distinguishing whether the failure in the constellation does or does not affect the satellites under consideration.

Abstract: The imaging or exposure device comprises a radiation source (1), a reticle (3) mounted between the radiation source and an optical projection system (4) for shaping the radiation downstream from the reticle (3), the optical projection system (4) comprising a series of mirrors (7, 8, 10, 11) including at least two mirrors (10, 11) that are deformable, having deformer members (12, 13) connected to a control unit (14) associated with an image analyzer (15) to deform the two deformable mirrors in separate manner, firstly as a function of differences relative to an image quality setpoint, and second as a function of differences relative to an image distortion setpoint.

Abstract: The invention concerns a biometric system provided with a set of reference biometric data (B?i) resulting from the application of a disjunction between a first set of biometric data (Bi) and a first encoded key (Ki), and from an information concerning the first key. A second set of biometric data (B2) is obtained. A second encoded key is determined by using a disjunction between the set of reference biometric data and the second set of biometric data. The second key is decoded by iterative decoding. Then, it is determined whether the first and second sets of biometric data mutually correspond by comparing the information concerning the first key with the second key.

Abstract: The invention concerns a biometric identification or authentication system, comprising several matching units associated with biometric data storage units, data units for updating the biometric data of the data units and control means for processing matching requests and/or updating biometric data from at least one client unit, the control means comprising transaction management means designed on the basis of a transactional monitor to cause said units to communicate.

Abstract: The present invention provides a process and system for identifying a person. According to the inventive method, and with the aid of the system, a sensor is used to capture biometric characteristics of a person to be identified. Identification data is extracted and the identification data of the person to be identified is compared to reference data in a database. In a preferred embodiment, an image is taken of creases in the skin of the person to be identified, reference crease data having been taken beforehand and stored in a database, and a first recognition is effected by means of the skin crease image in a filtering stage. After this first recognition, the reference data of the database may be filtered using other biometric characteristics, with continuing recognition using these other characteristics.

Abstract: The invention relates to an optical device which is used to form a fingerprint image. The inventive device comprises an optical plate having a first main face on which a finger is placed, a first side face comprising a converging mirror, and a second side face which is disposed opposite the first side face and which forms an output face, a focusing lens being disposed opposite said output face. According to the invention, the first main face forms an angle greater than 90° with output face, such that: the incidence of light rays on the first main face, inside the optical plate, is increased; the stray radiation at the output face is reduced; and a thinner plate can be used.

Abstract: The method of determining a speed of rotation of an axially symmetrical vibrating sensor having a vibrating member associated with control electrodes and with detection electrodes for generating vibration presenting an elastic line possessing periodicity of order n and having a position that is variable as a function of the rotation of the sensor, the method comprising the steps of: performing evaluation of the speed of successively for a predetermined number of positions of the vibration relative to the electrodes; the positions being geometrically offset relative to each other and the vibration being moved from one position to another by applying a precession command using a pre-established scale factor; determining a speed of rotation in function of the evaluations. The device for implementing such method.

Abstract: A device for acquiring images of a print of at least a portion of a user's hand, the device comprising a stand defining an acquisition zone extending substantially in a plane, an optical acquisition member that is fastened to the stand to have a field of view covering the acquisition zone, and a processor unit connected to the acquisition member to process an image signal coming therefrom, wherein: the stand is arranged to provide an empty space zone containing the acquisition zone and forming a passage for said portion of the hand while moving parallel to the plane; the device includes at least one projector member for projecting a light test pattern of at least two colors into the acquisition zone; the optical acquisition member has a depth of field extending on either side of the acquisition zone and it possesses a color sensor having an acquisition speed that is sufficient to capture at least one color image of said portion of the hand moving at a predetermined maximum speed of movement; and the proces

Abstract: An optical device for biometric sensing by contact, comprising: an optical element (2) having a face (3) constituting a surface for apposition of a body part from which a biometric characteristic is to be sensed; a radiation source (6) for illuminating the face (3) of the optical element; and sensor means (9) for picking up the radiation coming from the face (3); the face (3) is coated in a thin layer defining a pattern and made of a material such that in association with the material constituting the optical element, the layer is transparent in the presence of radiation emitted by the radiation source (6) when a body part is placed on the face (3) and is significantly less transparent in the presence of external parasitic radiation (13) that is inclined relative to the face (3); whereby the image received by the sensor means can be distinguished depending on whether it is real or latent.

Abstract: In the orientation device of a transmission assembly for orienting at least one beam in elevation and/or in bearing, said assembly pivots on a fork about an elevation axis and is driven about this axis by a motor supported by said fork, which fork can pivot on a base about a bearing axis, perpendicular to the elevation axis and driven about this axis by a second motor supported by said base, and at least one of the motors is a travelling-wave piezoelectric rotary motor.

Abstract: The invention concerns an actuator which includes a linear piston (2) in an active material, and an inner sliding cylinder (7, 7?) which includes an outer cylinder (5, 5?) in which the said sliding cylinder ((7, 7?) is pre-stressed, with one cylinder being in an anisotropic material with a negative or approximately zero expansion coefficient along at least one axis and a positive or approximately zero expansion coefficient on at least one other axis, and the other cylinder having a positive thermal or approximately zero expansion coefficient.

Abstract: The present invention concerns a method of determining the living character of an element carrying a fingerprint, consisting of making impedance measurements at various points on the said element by means of electrodes. The method according to the invention is characterised in that it consists of determining whether the said impedance measurements satisfy a law of variation of the impedance measured by the said electrodes as a function of the surface area of the said electrodes covered by the said elements such that Z=ƒDt(S).