Abstract: The module has a metal substrate having one major face that is insulated and that carries electrical connection tracks, and at least one power component fixed to the substrate and having connection tabs (20) that are soldered to the tracks. The power component is fixed on the non-insulated face and it is placed in a housing constituting an inside wall of a cooling fluid circuit, or it is stuck thereto. The tabs of the component pass through the substrate via holes therein.

Abstract: An electrical power component is provided with electrodes including, on one of the faces of the component, a single electrode, the electrodes being connectable by brazing to an electrical connection support by means of an electrical and thermal connection plate.

Abstract: An injector in a spark ignition engine combustion chamber has an injector body containing a needle with a closure element co-operating with a fuel passage seat extended by a diffusion port. The needle is axially movable between a first position wherein the closure element bears against the seat and a second position wherein the closure element is away from the seat, It further has a single-piece diabolo-shaped element fixed in the downstream part of the body, The seat, the diffusion port and a bore for slidingly guiding the needle are formed in the one-piece element. It defines, with the body downstream part of the body a fuel supply chamber and has ports communicating the chamber with the bore immediately upstream of the seat and emerging tangentially in the bore.

Abstract: The alloy is for making an infrared transducer. It is constituted by (In1−xTlx) (As1−ySby) in which 0≦x<1 and 0<y<1 (where x and y are less than ½). On a GaSb or AlSb substrate, the transducer comprises an active layer of the alloy having a composition such that its lattice is of a size that is equal to that of the substrate material.

Abstract: The object of the invention is an ignition component for internal combustion engines. It comprises: a secondary winding (4); high-voltage output means (11-13) for the said secondary winding capable of supplying an ignition spark to a cylinder of an internal combustion engine; a primary winding (2); a casing (7) in which are arranged the said windings and the said high-voltage output means; and holding means for holding the windings and the output means in the casing.

Abstract: The video camera comprises a detector having a two-dimensional matrix of photosensitive sites that accumulate charge, the sites being placed in an image plane of an optical system and being connected to a circuit for periodically transferring the accumulated charges at a determined frequency. A deviation member is interposed on the path of light towards the matrix and enables said path to be deflected about a nominal direction. A unit for periodically controlling the deviation means causes the image to be deviated in two dimensions, in a first determined cycle each time through a determined fraction of the pitch step size so as to perform space oversampling, and, in a second cycle, each time through a full pitch step size, which second cycle is a multiple of the first. A processor unit calculates the gain differences and the response offsets between the sites by performing comparisons therebetween.

Abstract: For the connection, a transition plate (11), for rotating the polarization of the waves leaving one (2) of the guides into an intermediate transition polarization, which is not parallel to the polarizations of the two guides, is inserted between the two waveguides (1, 2), the plate (11) is fixed to one (2) of the two waveguides and one end of the other waveguide (1) is introduced into a recess (12) for housing the transition plate (11).

Abstract: The safeguarded system for monitoring the pressure of a tire (8) of a vehicle wheel comprises a pressure sensor (1), a transmitter (3) of series of identical bursts of pressure data and a processor (2) for controlling the transmission of the bursts of data, arranged in order that, at least at wheel rotation speeds higher than a threshold, at least one burst of a series is transmitted in its entirety upon one wheel rotation.

Abstract: An electronic package has a plate of aluminum or aluminum alloy supporting electronic microcomponents. Trenches, and possibly cavities, are formed on a major surface of the plate. An insulating oxide layer covers the major surface, including the trenches and cavities. A network of equipotential electrically conductive connection tracks are formed on the major surfaces and receive contacts of the electronic microcomponents. Some tracks are above the trenches and thicker than the others.

Abstract: The apparatus includes a sensor capable of delivering a voltage representative of the ratio between a reference oxygen pressure and the oxygen pressure in a volume of the sensor and provided with electrodes (12, 14) via which it is possible to pass a pumping current that controls said oxygen pressure in the volume, and monitoring and control means including a digital controller (26) receiving said representative voltage on an input and suitable for delivering the pumping current. The monitoring and control means deliver the pumping current in the form of a current that varies continuously and progressively, without interruptions, governed by the digital controller in such a manner as to servo-control the input voltage to a determined value.

Abstract: An injection pump comprises several modules in a housing. Each module has a chamber supplying an injection circuit, separated by a deformable diaphragm from a compartment defined by a bore of the housing and by a reciprocating piston. The chamber is connected to a fuel supply and is connected to the injection circuit by a non-return valve. The pressures of the liquid in each compartment are adjusted independently. All pistons are driven by a same cam.

Abstract: To enable the localizing of a mobile telephone in a network of base transceiver stations, it is planned that the mobile telephone will undertake an exchange with a base transceiver station. In this exchange, this station will send it an absolute time so that the mobile telephone can temporarily locate itself with respect to this absolute time. During this exchange, the first base transceiver station furthermore sends the mobile telephone a piece of information .tau.1 on the distance between them. Then, at least two other base stations send different absolute times which are exploited by the mobile telephone to compute its position in the network by triangulation.

Abstract: The fingerprint sensor device comprises a thin flat transparent support (10) having an outside face for receiving the end of a finger and carrying on an inside face a two-dimensional matrix of photosensitive elements separated by strip-shaped gaps, and a substrate (14) carrying on an inside face light sources for directing light through the support via the strip-shaped gaps and substantially orthogonally to said outside face. The photosensitive elements are protected from the light coming from the sources so as to deliver an output signal only in response to light that has been back-scattered towards the outside face of the support.

Abstract: The device has a stabilization mirror that is angularly steerable about two mutually orthogonal axes, and an optical system for splitting an incoming light beam into at least two channels corresponding to different wavelengths. The stabilization mirror is steerable about a first axis (L) on internal equipment that is itself steerable about a second axis (I) orthogonal to the first and intersecting in an assembly that is steerable on a support about a third axis (C). A servo-control system has a gyroscopic sensor tied to the mirror and controlling steering motors. The system further includes, upstream from the stabilization mirror, and on the path of an incoming beam, a purely catoptric optical system that is stabilized, giving the inlet beam a size on the mirror that is smaller than the size of the inlet pupil of the system.

Abstract: For guiding an airplane to a docking station in an airport, a two-dimensional thermal IR image of a station approach zone is formed from a determined point close to said docking station, Entrance of an airplane into the approach zone and locations of IR features of the landing gear of the airplane are detected on arrival of an airplane. The distance between the airplane and the station is computed from stored characteristics of the landing gear of the airplane expected at the station and from the locations as well as any difference between a current path followed by the airplane and a set path for the airplane to arrive at the docking station in a determined orientation. A system for implementing the method and displaying instructions for the aircraft pilot is also disclosed.

Abstract: The mobile cellular telephony terminal includes a radio transmitter/receiver (1) for communicating with base stations of a cellular network, measuring the Doppler velocity of the transmissions originating from the stations and accordingly operating circuits (2) for estimating the velocity of the terminal, by composition of the Doppler velocities, and updating circuits (4, 5) are provided for updating an inertial unit (10) supplying the radio circuit (1) with the position of the terminal, by comparison between a terminal velocity supplied by the unit (10) and the estimated velocity.

Abstract: To measure, in a reference frame, angular displacements of a privileged axis tied to a carrier, angular velocities or angular increments of the carrier are measured about two axes tied to the carrier, which axes are orthogonal to each other and at an angle of about 90.degree. the privileged axis. Said mutually orthogonal axes are caused to rotate at high speed about said privileged axis. The angular positions of said mutually orthogonal axes about the privileged axis are determined continuously relate to a reference position. Their angular displacements are calculated by integrating their angular velocities while taking account of said angular positions of the orthogonal axes about the privileged axis.

Abstract: The system for a printer in its reservoir for consumables for office equipment includes essential command unit for a printer, an electric chip having a balance of consumables and memory and a device to control the reservoir of consumables. The device includes a chip/central unit interfaced in a computer intended to determine the content of the reservoir of consumables, by calculating the flow, in cooperation with the central unit, by estimating the quantity of consumables used according to the estimated quantity of printed copies, and the balance of consumables left. This system has applications to photocopiers as well.

Abstract: In a method for modifying the resolution of an image obtained by digitising a real image, the digitised image includes a plurality of pixels of a particular intensity. The outlines in the digitised image are studied and isolated and additional pixels are created by interpolation of the intensities of original pixels located on one side of an outline to form an image with a modified resolution. The studying of outlines is achieved by locating, for close pixels, the intensity transitions representative of a gradient exceeding a particular threshold. The method is utilized for modifying the image resolution of facsimile machines.

Abstract: The device for imaging finger prints has a transparent electrically insulating substrate, a thin transparent electrode on the substrate and a sensitive layer on the electrode comprising electroluminescent dielectric material, arranged to receive hand tissues whose print is to be imaged. A source means connected to said electrode applies a voltage between the electrode and tissues. A camera provides a picture taken through the substrate.