Abstract: The two twin-reflector antennas comprise a common support on which they are mounted, with each twin-reflector antenna comprising a main reflector, a secondary reflector and at least one radiating source placed in front of the corresponding secondary reflector, and optical paths of beams produced by the two twin-reflector antennas crisscrossing one another.

Abstract: The two twin-reflector antennas comprise a common support on which they are mounted, with each twin-reflector antenna comprising a main reflector, a secondary reflector and at least one radiating source placed in front of the corresponding secondary reflector, and the two twin-reflector antennas criss-crossing one another on the common support.

Abstract: In the field of satellite communications and more particularly to a multi-beam antenna system for the coverage of a given geographical region broken down into several spots on the ground, a radio frequency feed block comprises several radio frequency chains intended to transmit or to receive an electromagnetic wave in the direction of a reflector and waveguides connected to outputs of the chains, characterized in that it comprises a plate inside which the waveguides are made, and to which the radio frequency chains are fastened. A satellite comprising a feed block is also provided.

Abstract: The micro-hybrid system for a transport vehicle comprises a rotary electric machine suitable for being coupled mechanically to an engine of the vehicle, an AC-to-DC converter, a DC-to-DC converter, first and second electrical energy reservoirs suitable for storing an electrical energy produced by the rotary machine and for returning the electrical energy to consumer devices equipping the vehicle, and a controller for controlling the operation of the micro-hybrid system. The controller comprises piloting strategies module suitable for autonomously piloting the operating modes of the micro-hybrid system according to a plurality of strategies depending on information provided to said piloting means regarding an internal state of the micro-hybrid system and of a state of the vehicle.

Abstract: The micro-hybrid system for a transport vehicle comprises a rotary electric machine (10) suitable for being coupled mechanically to an engine (5) of the vehicle, an AC-to-DC converter (11), a DC-to-DC converter (13), first (12) and second (2) electrical energy reservoirs suitable for storing an electrical energy produced by the rotary machine and for restoring the latter for consumer devices equipping the vehicle, and control means (14) for controlling the operation of the micro-hybrid system. In accordance with the invention, the control means (14) comprise piloting means (140) suitable for autonomously piloting the operating modes of the micro-hybrid system according to a plurality of strategies according to at least their own knowledge of an internal state of the micro-hybrid system and of a state of the vehicle.

Abstract: One controls the number of iterations of a process of iterative decoding of a symbol sequence coded according to a coding scheme using concatenation of convolutional codes in cases of non-convergence. One firstly calculates a quantity related to the convergence of the iterative decoding process, then one compares this quantity with a non-convergence threshold. As a function of this comparison, the iterative decoding process is halted while declaring the sequence undecoded.

Abstract: An add-on unit for coupling to a main electrical appliance with separable power contacts, including a housing having a front face and a rear face, and for mounting frontally against or into such main appliance, wherein the front face includes first connections having an input-output function for connection with communication conductors for communicating with a device for control and monitoring of such main appliance, and second connections having an output function for connection with communication conductors for communicating with command input terminals of such main appliance, wherein the first connections are pins located in a connector on the front of the housing, the first connections comprising signal input connections to command such main appliance and signal output connections for signalling a status of such main appliance.

Abstract: The housing of the add-on unit presents on the front, on its face 31a, input-output connections 33 suitable for the connection of communication conductors, particularly to a bus cable, to assure linkage of the appliance with a command and monitoring device. It also comprises connections 35 with an output function which enable the connection of conductors for linkage with the command input terminals of the equipment.

Abstract: This invention relates to a control device for a motor output (DM) comprising electrical control and protection switchgear (CD) for a motor (M) receiving contact information (a1, a2, a3) connected to the electrical switchgear (CD) and its output controlling at least one control device (KM) that controls starting or stopping the motor (M) and also receiving information from a remote sensor (C) and communicating with a “master” network controller (PLC) through a communication bus (B), characterized by the fact that the electronics (E) comprises means of locally controlling the control device (KM) stopping the motor (M) as soon as the remote sensor (C) is activated during an operating phase of the motor output and means of sending information corresponding to this stop on the bus (B) to the “master” module (PLC).

Abstract: The subject invention provides a parallel or closed loop mechanism for moving and positioning a member in space. The mechanism includes three branches each provided with at least two link members being serially connected together by a spherical elbow joint whereby the first and second link members are rotatable with respect to each other about any axis passing through a center of the first joint. The mechanism is provided with actuators for moving each branch and the first links of each branch are rigidly connected at an end portion thereof to the actuator means. The mechanism includes three revolute joints each defining a longitudinal axis of rotation. Each revolute joint is connected to an associated second link member so that the longitudinal axes of all third joints intersect at a point and the revolute joints are interconnected so that the three branches form three parallel or closed loops.

Abstract: The present invention uses molded components to receive the ends of electrical zip cord. Elongated contact pins which are molded into the components are inserted axially into the ends of the stranded conductors at the end of the zip cord making positive electrical contact to the conductors. Ridged portions within the molded components receive, grip, and retain the insulator on the outer portion of the zip cord, thereby separating the functions of electrical gripping and mechanical contact in the present invention.

Abstract: A four degree of freedom manipulator which comprises a pair of elongate rigid legs connected by a joint. The joint acts as an end-effector or an end-effector is attached thereto, The legs effectively intersect at a point in the joint. The positioning end of each leg is attached to a two degree of freedom positioning mechanism that can position it in a two dimensional plane. The connection between the leg and the positioning mechanism has two passive rotational degrees of freedom. Preferably five bar mechanisms are used as the positioning mechanisms. The manipulator can control the position and orientation of an end-effector.

Abstract: A method of manufacturing a semiconductor device, in which on a basic mask of a first material there is provided a layer of a second material, after which the first material with the second material present thereon is removed, and an island of the second material remaining with a window of the basic mask is used as an alignment feature for a subsequent mask.

Abstract: A method of manufacturing a semiconductor device by means of doping via a mask. According to the invention a mask is used which is manufactured by providing one or more "first" apertures in a masking layer, after which islands of an isotropically growing material are grown in the said apertures, after which the parts of the masking layer present between the islands are removed and finally the said islands themselves are removed.