Abstract: This invention concerns a video unit, intended for a seat, with a video set comprising an electronic console (5), such as a video reader or a play station, and an associated independent screen (7), which unit comprises moreover—a connection means (11) intended for the electric supply of said video unit, and—an interconnection means (12) for the audio-video link between said console and said screen.

Abstract: This invention concerns a receiving case for a video unit comprising an electronic console (2) and an associated independent screen (3), which case comprises stowing sections (4, 5) suited to accommodate respectively the electronic console (2) and the associated screen (3), and also comprises means enabling to hold the external face of the stowing section (5) suited to accommodate the screen (3) tight against the rear face of the head-rest section of a seat.

Abstract: A process for producing fused alumina-zirconia grits includes mixing raw materials suitable to produce grits with the following chemical composition, in % by weight: ZrO2+HfO2: 10-60%, Al2O3: 38-90%, SiO2: <0.8%, and Impurities: <1.2%. The process also includes adding carbon and aluminum metal to the mixture of raw materials to obtain a charged batch containing, in % by weight,: Carbon: 0.4-1% Aluminum metal: 0.5-2.5%. The process further includes melting the charged batch in an electric arc furnace with a voltage of 175-205 V and a delivered specific electrical energy of 2.5 to 4 kWh per kg of charge.

Abstract: An emergency braking warning device includes a printed circuit (1) whereon are implanted a voltage regulator/stabiliser assembly (3), a two-way digital inertia sensor (5), a microprocessor (6) and power control elements (10, 11). The voltage regulator/stabiliser assembly (3) is connected to the vehicle battery and powers the two-way digital inertia sensor (5) and the microprocessor (6). The microprocessor (6) is adapted to manage data coming from the digital sensor (5) and it is connected to the power control elements (10, 11) interposed on the circuits of the right (8) and left (9) flashers, to enable the triggering of the flashers (8, 9) when the programmed braking threshold is exceeded.

Abstract: The invention concerns a method for enabling an apparatus (15) to operate only after detecting with receiver means (11) located proximate to said apparatus, a signal transmitted by portable transmitted means (1), which consists in no longer taking into account detection by the receiver means (11) of the signal transmitted by the transmitting means (1), after activating presence sensing means (22) provided proximate to said apparatus, or integrated in said apparatus. Once activated, the presence sensing means (22) neutralise the transmitter/receiver device (1, 11) and the apparatus can operate normally without being perturbed by possible statics or accidental losses of signal. The inventive method and device are applicable to an antitheft safety device for a motor vehicle.

Abstract: Networks for exchanging packet signals between first network-units (1) like access providers and/or access multiplexers coupled to terminals and second network-units (2) like service providers and/or gateways coupled to further networks can be improved by providing a network with a pooled connection (3) having a capacity smaller than a sum of all terminal-capacities, which sum equals the capacity necessary in case all terminals communicate via the network at the same time. This pooled connection (3) is located between said first (1) and second (2) network-unit and is managed by a manager (23) in said second network-unit (2). By providing a first network-unit (1) with a router (12) managed by a manager (13), control traffic can be routed transparently to said second network-unit (2). By providing a manager (23) in the second network-unit (2) with a controller (28), the capacity of said pooled connection (3) can be controlled and guarded.

Abstract: This invention concerns the anti-theft security devices for a motor vehicle, such devices being of the type consisting of portable transmitting means, of a receiving module on board said vehicle and of means controlling a system for interrupting at least one circuit required for operating the vehicle (ignition circuit engine, fuel intake circuit or other . . . ) when the distance between said transmitting means and said receiving means exceeds a certain value.

Abstract: A method for prioritized data transmission to a common transmission medium from a plurality of interface modules coupled to it, for interfacing at least one input bitstream with said common transmission medium, whereby access is arbitrated on the basis of a module priority of each interface module, is such that, for at least one interface module, the module priority is dependent on at least one connection parameter associated to packets of said at least one input bitstream. An arrangement for performing this method is described as well as several variant implementations of the method and the arrangement.

Abstract: A method for prioritised data transmission to a common transmission medium from a plurality of interface modules coupled to it, for interfacing at least one input bitstream with said common transmission medium, whereby access is arbitrated on the basis of a module priority of each interface module, is such that, for at least one interface module, the module priority is dependent on at least one connection parameter associated to packets of said at least one input bitstream. An arrangement for performing this method is described as well as several variant implementations of the method and the arrangement.

Abstract: The present invention relates to a network status reporting method, for reporting in a communications network a network status to a data source with an adaptive transmission rate. The data sink reports the network status to the data source in order to enable the data source to adapt the transmission rate based on the network status. The communications network further contains at least one intermediate network node, and a data sink. Only the data sink reports to the data source on a status of the communications network in its neighborhood, and no intermediate network node reports to the data source on said network status of the communications network.

Abstract: The method is used in a switching network over which data packets are transferred and which includes a plurality of switching nodes with switching node terminations (SNT) and associates in each one of the switching node terminations (SNT) internal header information (IHI) included in an internal data packet received by the switching node termination and identifying an internal connection within the switching node and ending in the switching node termination, to external header information (EHI) included in an external data packet and identifying an outgoing external connection external to the switching node and originating from the switching node termination. The internal header information (IHI) includes a connection reference number (CRN) and a transfer type is associated to the internal connection. The method comprises three steps:a. determining the transfer type;b.