Abstract: The network according to the invention, including functional nodes connected in series by information transmission means, in which the information assumes the form of discrete messages propagating from node to node in the network, is characterized in that the information transmission means between the nodes are bidirectional to allow information to propagate in both circulation directions of the network, and each node includes at least one first and second associated information input/output port, connected by corresponding information transmission means to neighboring nodes and the operation of which is controlled exclusively and sequentially, by means forming a communication automaton, between a mode of operation with asynchronous reception of information from its neighboring nodes and a mode of operation for synchronous transmission of information to its neighboring nodes.

Abstract: A functional node for an information transmission network and corresponding network are disclosed. In one aspect, the functional node includes at least one module for distributing messages between input and output ports. The distribution module includes at least one combination of at least three ports, including a first input port connected to a second output port by a first capability for unconditionally propagating messages, not depending on the messages. The first and/or second ports are connected to a third port by a second capability for conditionally propagating messages, depending on the messages.

Abstract: This network comprising functional nodes connected in series by information transmission means, in which the information assumes the form of discrete messages propagating from node to node in the network, is characterized in that the information transmission means for transmitting information between the nodes are bidirectional so as to allow information to propagate in both directions of flow of the network, and each node includes at least one first and one second associated port, for information input/output, connected to adjacent nodes by corresponding information transmission means and the operation of which is controlled by communication automaton means, between an operating mode for the asynchronous reception of information from its adjacent nodes and an operating mode for the synchronous transmission of information to the nodes adjacent thereto, and in that the communication automaton means are suitable for triggering the activation of the communication of information from the node to its adjacent node

Abstract: This network comprising functional nodes connected in series by information transmission means, in which the information assumes the form of discrete messages propagating from node to node in the network, is characterized in that the information transmission means for transmitting information between the nodes are bidirectional so as to allow information to propagate in both directions of flow of the network, and each node includes at least one first and one second port associated by programming, for information input/output, connected to adjacent nodes by corresponding information transmission means and the operation of which is controlled in an exclusive and sequential manner, by communication automaton means, between an operating mode for the asynchronous reception of information from its adjacent nodes and an operating mode for the synchronous transmission of information to the nodes adjacent thereto, and in that the means for transmitting information between the nodes (51, 52, 53, 54, 55, 56) are wired m

Abstract: This network comprising functional nodes connected in series by information transmission means, in which the information assumes the form of discrete messages propagating from node to node in the network, is characterized in that the information transmission means between the nodes are bidirectional so as to allow information to propagate in both directions of flow of the network, and each node includes at least one first and one second associated port, for information input/output, connected to adjacent nodes by corresponding information transmission means and the operation of which is controlled exclusively and sequentially, by communication automaton means, between an operating mode for the asynchronous reception of information from its adjacent nodes and an operating mode for the synchronous transmission of information to the nodes adjacent thereto, and in that the communication automaton means are suitable for switching the associated ports of the node from their reception mode of operation to their tran

Abstract: An information transmission network and corresponding functional node are disclosed. In one aspect, the information transmission network includes functional nodes connected to one another by an information transmission capability. The information is in the form of discrete messages propagating from node to node in the network. At least some of the nodes have at least two operating modes, one operating mode defined only by the configuration of the physical layer of the node referred to as 1 of the OSI model and one operating mode defined at least by that layer and the link layer of the node referred to as 2 of the OSI model.

Abstract: A functional node for an information transmission network and corresponding network are disclosed. In one aspect, the functional node includes at least one module for distributing messages between input and output ports. The distribution module includes at least one combination of at least three ports, including a first input port connected to a second output port by a first capability for unconditionally propagating messages, not depending on the messages. The first and/or second ports are connected to a third port by a second capability for conditionally propagating messages, depending on the messages.

Abstract: This network comprising functional nodes connected in series by information transmission means, in which the information assumes the form of discrete messages propagating from node to node in the network, is characterized in that the information transmission means for transmitting information between the nodes are bidirectional so as to allow information to propagate in both directions of flow of the network, and each node includes at least one first and one second associated port, for information input/output, connected to adjacent nodes by corresponding information transmission means and the operation of which is controlled by communication automaton means, between an operating mode for the asynchronous reception of information from its adjacent nodes and an operating mode for the synchronous transmission of information to the nodes adjacent thereto, and in that the communication automaton means are suitable for triggering the activation of the communication of information from the node to its adjacent node

Abstract: The network including functional nodes (10) connected in series by a data transmitter (11; 12), in which the data assumes the form of discrete messages propagating from node to node in the network, is characterized in that the a data transmitter (11; 12) between the nodes are bidirectional to allow data to propagate in both circulation directions of the network, and each node (10) includes at least one first and one second port associated by programming, for data input/output (13, 14), connected to adjacent nodes by a corresponding data transmitter (11; 12) and the operation of which is controlled exclusively and sequentially, by a communication automaton (15), between an operating mode for the asynchronous reception of data from the adjacent nodes, and an operating mode for the synchronous transmission of data to the nodes adjacent thereto.

Abstract: The network according to the invention, including functional nodes connected in series by information transmission means, in which the information assumes the form of discrete messages propagating from node to node in the network, is characterized in that the information transmission means between the nodes are bidirectional to allow information to propagate in both circulation directions of the network, and each node includes at least one first and second associated information input/output port, connected by corresponding information transmission means to neighboring nodes and the operation of which is controlled exclusively and sequentially, by means forming a communication automaton, between a mode of operation with asynchronous reception of information from its neighboring nodes and a mode of operation for synchronous transmission of information to its neighboring nodes.

Abstract: A light unit or indicating device for a vehicle (.e.g., a vehicle lighting unit, a vehicle indicating unit, reversing radars and other systems) has a shell, a light contained in the shell, and an electronics card mechanically associated with the shell. The electronics card is connected an electrical power supply and to a multiplexed bus of an on-board network. The card has a controller for the light that allows exchange of commands and information on status of the light unit over the multiplexed bus, and also has an internal bus connected to the controller and the light that allows exchange between them of commands generated by the controller and of the status information of the light unit. The unit may also have an ancillary component for implementing ancillary facilities such as light beam adaptation or automatic adjustment of the orientation of the light beam.

Abstract: Driving assistance device for a motor vehicle, including at least one emitter of radiation toward the front of the vehicle, a receiver of part of this radiation reflected by a target vehicle, and control and calculation means for influencing the acceleration and braking of the following vehicle in accordance with information coming from the unit comprising the emitter and the receiver and in accordance with data pertaining to the following vehicle. At least the emitter is mounted so as to be rotatable in terms of the azimuth and means for driving the emitter in rotation are provided in order to modify the azimuth of the beam of the emitter in accordance with the curvature of the road. This beam advantageously turns by the same angle as that of the beam of an adaptive lighting system.

Abstract: Driving assistance device for a motor vehicle, including at least one emitter of radiation toward the front of the vehicle, a receiver of part of this radiation reflected by a target vehicle, and control and calculation means for influencing the acceleration and braking of the following vehicle in accordance with information coming from the unit comprising the emitter and the receiver and in accordance with data pertaining to the following vehicle. At least the emitter is mounted so as to be rotatable in terms of the azimuth and means for driving the emitter in rotation are provided in order to modify the azimuth of the beam of the emitter in accordance with the curvature of the road. This beam advantageously turns by the same angle as that of the beam of an adaptive lighting system.

Abstract: A motor vehicle headlight has a reflector with two focal regions, a light source in one of these focal regions producing a pool of reflected light in the other focal region, and a lens which converts the pool of light into a beam projected on the road. The headlight includes means for displacing the light source with respect to the reflector.

Abstract: The present invention relates to a lighting or indicating light unit for a vehicle. It also relates to a lighting or indicating system equipped with at least one such light unit. It extends directly to indicating devices, such as vehicle lights but also to other similar products such as reversing radars and other systems.

Abstract: A motor vehicle headlight has a reflector with two focal regions, a light source in one of these focal regions producing a pool of reflected light in the other focal region, and a lens which converts the pool of light into a beam projected on the road. The headlight includes means for displacing the light source with respect to the reflector.

Abstract: A motor vehicle headlight comprises a mirror having mounted therein a discharge lamp, a mask placed in front of the lamp, and a shielding plate of conductive material extending behind the mirror. The mask is made of conductive material and is connected to a fixed potential to capture the parasitic electromagnetic fields emitted forwards from the lamp. According to the invention, the shielding plate is constituted by a cover extending behind and along the mirror and connected to said fixed potential. The invention is applicable to ensuring electromagnetic compatibility for discharge lamp headlights.

Abstract: A fluid-circulation heat exchanger including a porous body, made of thermally conductive material, in contact with at least one portion of a part to be cooled. The fluid flows through this porous body. The porous body has pores which generate directional changes of the fluid. These pores are large enough for the head loss of the fluid to be as small as possible on passage through the porous body. Application, in particular, to electron tubes.

Abstract: The device according to the invention comprises a photocathode (1) illuminated by a luminous source (11) modulated at a high frequency F by an optical device (15) controlled at the frequency F, the optical device (15) being interposed between the luminous source and the photocathode. According to one aspect of the invention, the optical modulator (15) is controlled by a surrounding electromagnetic field at a high frequency F, in which the modulator is immersed. The electron gun device according to another aspect of the invention can be associated to a microwave circuit to obtain microwave oscillator or amplifier tubes. According to another aspect of the invention, the device supplies a pulsed electron beam for injection into particle accelerators.