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Assignee: Sextant Avionique


Location: FR
No. of patents: 22

NumberTitleIssue Date
5703679Transceiver head for longitudinal doppler speed indicator
Transceiver head for a longitudinal Doppler speed indicator. Transceiver head for a longitudinal Doppler speed indicator with at least one pair of measuring axes. It comprises: a laser (1); polarization switching means (4) on the path of the laser beam; polarizatio...
12/30/1997
5608522Laser velocimetric and clinometric probe
The invention relates to a laser velocimetric probe which includes a laser generator, a beam splitter, and a back scattering lens with an output to measuring devices for determining the velocity of a particle passing through a fringe field from a signal r...
03/04/1997
5525980Method and apparatus for operating a capacitive tactile keyboard
A method and apparatus for determining a valid selection of a capacitance tactile keyboard as a function of a selection state and validation state of the keyboard. The selection state is determined from measured capacitive values of each key by during a f...
06/11/1996
5486983Lighting module for instruments with a liquid-crystal matrix
A lighting module for instruments with a liquid-crystal matrix (1) is disclosed. The module has a casing (5) including a back (8) and lateral walls (7), the said matrix closing off the casing on its face opposite the back, and at least one fluorescent tub...
01/23/1996
5459463Device for locating an object situated close to a detection area and a transparent keyboard using said device
A device is disclosed for locating an object situated close to a detection area and a transparent keyboard using said device. This device comprises a set of detection zones connected so as to form lines which extend parallel to each other and to a detecti...
10/17/1995
5317915Apparatus for the detection of the icing-up of the blades of an aircraft rotor
An apparatus for the detection of the icing-up of an aircraft rotor. The apparatus has a sensor (10) for the tractive force and a sensor (11) for torque; for measuring respectively the axial force and the torque exerted on the shaft of the rotor. A device...
06/07/1994
5287451Method of presenting images on a hardware screen and a system for implementing the method
The system comprises, connected to an image generator (14), a processing unit (13) with a management unit (18), a microregion generating unit (20) and correlation circuits for selecting, for each point of the image with coordinates x, y, one of a series o...
02/15/1994
5270710Switch device with operating modes of capacitive proximity and mechanical actuation
A switch device with two modes of operation includes at least one switch comprising, carried by a substrate, two conductive lands and an electrically conductive elastic capsule in contact with one land and, in the unoperated condition, overlying the other...
12/14/1993
5268615Device for the [servo-] control of the cut-off voltage of a cathode-ray tube by measurement of luminance
The disclosure relates to cathode-ray tubes that have to be used at a low level of luminance. A zone of the screen of the tube is covered with a luminophore of high sensitivity and is associated with a luminance sensor by an optic fiber that measures the ...
12/07/1993
5257536Aircraft probe for measuring aerodynamic parameters of amient flow
The probe comprises a wind vane (1) mounted for rotation on the aircraft in order to orient itself in the direction of the flow and provided with a detector (15) for detection of differential pressure representative of the aerodynamic angle of incidence o...
11/02/1993
5189390Method for stimulating the finger of an operator acting on a static keyboard and a device for implementing this method
A method and device for stimulating the finger of an operator acting on a static keyboard, which method consists in making at least part of the keyboard mobile on which the finger of the user bears at least partially when it actuates a key, detecting at l...
02/23/1993
5172181Laser system for measuring the angle of incidence of an aircraft
A system is disclosed for measuring the angle of incidence of an aircraft, comprising at least one probe with a laser generator having a monochromatic emission spectral line, an optical emission system, an optical system receiving a monochromatic radiatio...
12/15/1992
5172114Tactile effect switch and keyboard using such a switch
In the tactile effect switch and a keyboard using such a switch, the tactile effect is obtained by combining a snap acting switch and the deformation of a stud, axially deformable under compression, which is integrally formed on a membrane made from a res...
12/15/1992
5172056Magnetic field transmitter and receive using helmholtz coils for detecting object position and orientation
The radiator and the sensor each comprise three pairs of Helmholtz coils which are disposed along three orthogonal axes respectively. The coils are wound in pairs of grooves which have different depths and are recessed in a cubic support. The radiator and...
12/15/1992
5168222Signal processor circuit with signal multiplexing, sampling and multiplying for processing orthogonally received signals in electromagnetic position detection system
The system comprises a radiator, a sensor (21) fixed to the moving object, a circuit for processing the signals from the sensor in order to determine their amplitudes and a computation processor with a base of processing algorithms. The system also has a ...
12/01/1992
5162785Method and devices for optimizing the contrast and the angle of view of a liquid crystal display
A method is provided for optimizing the contrast and the angle of view of a liquid crystal display, this method consisting in periodically energizing a given zone of the display, permanently measuring the luminance of this zone so as to obtain at all time...
11/10/1992
5144104Miniature switch device with tactile effect
A miniature switch device with tactile effect is disclosed comprising a printed circuit board with two conducting areas cooperating with a cap in the form of a spherical skull cap made from an electrically conducting and resiliently deformable material, t...
09/01/1992
5136607Sensor for detecting a physical magnitude comprising a mechanical resonator
A sensor is disclosed for detecting a physical magnitude, comprising a mechanical resonator, adapted to be subjected to a mechanical stress representative of the magnitude to be measured, and means for causing the resonator to oscillate and maintaining it...
08/04/1992
5092177Device for measuring the deformations of a diaphragm
A device for measuring the deformations of a flexible diaphragm (1) sealed by its periphery to a support (2) and wherein are formed four sensors constituted by a thick layer of piezo-resistive material and connected as a Wheatstone bridge. The sensors are...
03/03/1992
5063777Method and device for determining the speed of a helicopter with respect to the air
A method and device are disclosed for determining the airspeed of a helicoper, in which, for a plurality of flight configurations of a calibration flight, magnitudes for estimating the airspeed and the collective PO and cyclic pitches PX
11/12/1991
5059882Electromechanical control device usable for piloting a vehicle
An electromechanical control device is disclosed usable for piloting a vehicle, comprising a piloting control stick articulated on a support via an articulation with two degrees of freedom and so with two output axes, a detection assembly comprising posit...
10/22/1991
5034583Electric switching device which can be controlled mechanically in an adjustable way
An electric switching device for making or breaking the electric continuity between electric connecting elements under the action of an external force includes, in a single case, at least one electric switch having a control member therefor, a movable ope...
07/23/1991
 
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