Abstract: The invention relates to a signal intended to be transmitted towards a plurality of receivers, of the type comprising at least two source signals and consisting of a plurality of independently modulated substantially orthogonal carrier frequencies distributed over a predetermined frequency band. According to the invention, said frequency band [(12)] is divided into at least two frequency sub-bands [(131-134)] each comprising a set of said substantially orthogonal carrier frequencies [(11)], and to each of said sub-bands is allocated one of said source signals, so that a receiver may retrieve from the transmitted signal, by filtration, at least one of said sub-bands and perform demodulation processing only on the carrier frequencies contained in the retrieved sub-bands. The invention also relates to a transmission process as well as to a receiver of such signal.

Abstract: A local mobile access network is equipped to manage the resources in the network which comprises a number of radio terminals (BR) linked, via the concentration stages (CTR, VCX), to another concentration stage consisting of virtual circuit switches (VCX), At least the concentration stage includes a virtual circuit switch (VCX) equipped with macrodiversity management equipment (OPM). Each concentration stage (CTR, VCX) downstream from a concentration stage (CTR, VCX) is equipped with macrodiversity management equipment (OPM) is equipped with a flow rate management device (GDM) for managing the resources on the multiplex which is found directly upstream of the concentration stage that it equips.

Abstract: A method of correcting topographical effects on a microelectronic substrate, the method comprising the steps consisting in depositing a layer of resin on the structure to be planarized having topography in relief surrounded by isolation zones, and subjecting said resin layer in its zones superposed on underlying zones of high topographical density to photolithography by means of a mask possessing a standard mesh without any one-to-one coincidence with the underlying topography.

Abstract: The invention relates to a stabilized power supply device for an assembly of remotely powered electronic components, for which the supply and the data transmission take place on the same channel. The device includes an electronic module which is interposed between the supply channel and the assembly of electronic circuits, supplies the said assembly of electronic components with a variable current in order for the proper operation of the said assembly of electronic components to be satisfied, and consumes a constant current in order to allow effective data transmission.

Abstract: The semiconductor region of an intrinsic collector is surrounded with a lateral insulating region. A semi-conducting layer comprising a SiGe heterojunction is partially located between the transmitter and the intrinsic collector and extends on either side of the transmitter above the lateral insulating region. The base intrinsic region is formed in said semi-conducting layer with heterojunction between the transmitter and the intrinsic collector. The base extrinsic region and the collector extrinsic region respectively comprise first zones formed in said semi-conducting layer with heterojunction, located respectively on either side of the transmitter and above the lateral insulating region first part and mutually electrically insulated by the lateral insulating region second part.

Abstract: An apparatus for querying a central service dials telephone numbers to establish contact with the central service, and accesses services housed in the central service. The geographical location of the apparatus is stored in a tie unit and sent to the apparatus upon request. The apparatus forwards this information to the central service that then provides information about facilities (e.g., restaurants, sports venues, theaters, etc.) at that location.

Abstract: A method of nitriding the gate oxide layer of a semiconductor device includes the chemical growth on a silicon substrate of a native silicon oxide layer ≦1 nm thick; treating said substrate coated with the native silicon oxide layer with gas NO at a temperature ≦700° C. and a pressure level ≦104 Pa to obtain a nitrided native silicon oxide layer; and the growth of the gate oxide layer. The method is applicable to PMOS devices. Further modifications and alternative embodiments of various aspects of the invention will be apparent to those skilled in the art in view of this description. Accordingly, this description is to be construed as illustrative only and is for the purpose of teaching those skilled in the art the general manner of carrying out the invention. It is to be understood that the forms of the invention shown and described herein are to be taken as the presently preferred embodiments.

Abstract: The present invention lies in the field of antennas for land cellular radio communications networks, and it relates to a remote control method for adjusting the tilt of the radiation pattern relative to the horizontal of the antennas of a base station. The invention also relates to an antenna fitted with means for adjusting its tilt and to a system for remote control of the tilt. The technical field of the invention is active antennas (also known as “smart” antennas or as “adaptive” antennas) for networks for communicating with mobile telecommunications terminals. According to the invention, an antenna for a land cellular telecommunications network, the antenna comprises radiating elements and feeder means for feeding said radiating elements with radio frequency signals; said feeder means include electronic phase shifter means for obtaining phase shifts between said signals so as to enable the tilt of the radiation pattern in a vertical plane to be adjusted remotely.

Abstract: The present invention relates to a system for measuring the optical coupling between cores of a multicore fiber which comprises transmitter capable of transmitting a train of pulses of controlled frequency and width into one end of a core of a multicore fiber, and detection capable of detecting the signal received at the same end of at least one other adjacent core of the multicore fiber, with a controlled time window close to the transmission pulse duration and with a delay between 0 and the transmission period.

Abstract: A shop management method and a platform for performing the method are provided to assist shopkeepers who have an inventory of products being offered for sale. A management space is assigned for each shopkeeper on the management platform which is remotely located from the shop and is accessible via a network, such as the Internet. Access to the shopkeeper's management space is controlled by authorized list. Certain pre-arranged management tools for this shop are made available to the shopkeeper in the corresponding assigned management space.

Abstract: A system and a process arranges equitable-loss data packets in a high-volume asynchronous transfer mode (ATM) system and establishes the output order of the packets. There are a plurality of inflowing data packet streams, a minimum quantity ri of each incoming flow being reserved. At all times, there is a ratio K(t) between two parts of each incoming data packet flow. One part is a quantity of packets &Dgr;xi(t) allocated above the minimum reserve quantity ri. The other part ei(t) is an instantaneous quantity &Dgr;xi(t) above the minimum reserve quantity ri.

Abstract: The present invention concerns a local mobile access network, of the kind that comprises a distribution network (RDL) formed by a plurality of nodes (NIE), each node (NIE) being connected to a concentrator (CTR) which is connected to at least one radio terminal (BR) designed to communicate with mobile units linked with said terminal (BR), at least one of said nodes (NIE) of said distribution network (RDL) being connected via routing equipment (PONT) [bridge] to a virtual channel switch (VCX).

Abstract: A long-distance optical transmission system comprising pulse emitter and receiver means (1, 2) and an optical line (3) which extends between said emitter and receiver means (1, 2) and which comprises alternating segments (3a, 3b) of dispersive fibers having chromatic dispersion of opposite signs, and also having a plurality of amplifiers (4), the system being characterized in that the optical line (3) comprises a plurality of pairs of dispersive fiber segments (3a, 3b) having chromatic dispersion of opposite signs between successive amplifiers (4), and in that the cumulative dispersion C over the majority of the segments of the optical line satisfies the relationship

Abstract: A method and device for encoding a digital audio-signal divided into a succession of blocks according to a LPC “forward” and “backward” analysis respectively under a choice criterion. For coding each current block, the choice criterion is established by defining the degree of stationarity of the digital audio-signal according to a stationarity parameter belonging to a maximum and a minimum stationarity range value. An analysis choice value is established from a decision function and this stationarity parameter and thus applied to the digital audio-signal to have this audio digital signal encoded by “backward” LPC filtering for stationary zones. The “forward” and “backward” filtering mode are thus performed in relation to the degree of stationarity of the audio digital signal, the amount of switching from one to the other filtering modes being thus limited.

Abstract: A process for the anisotropic etching of a dielectric organic polymer material using a plasma is provided. The gas phase of the plasma may include a gas mixture of O2/NH3, O2/H2O, O2/CH4 or O2/H2. The oxygen concentration of the gas mixture may be less than 40% by volume. The process may include the fabrication of metal interconnects in a damascene-type structure of an integrated circuit.

Abstract: Data communication between a processing unit and external means may take place via a plurality of data streams. Means check the mutual consistency of said streams and report and correct abnormalities. This self-synchronization is achieved by inserting separators into the data streams to separate the data, and by means of a freezing mechanism for freezing the internal operation of the processing unit.

Abstract: A method and an equipment for allocating to a television program, which is already conditionally accessed, a complementary conditional access. The television program is first received by means provided with access entitlements and the control words are restored. Complementary access control messages and complementary entitlement management messages corresponding to a complementary access control system are built up. The initial unmodified television program is rebroadcast, together with the complementary messages related to the complementary access control system.

Abstract: In order to depict a set of paths which are available for transporting a stream from a first node (1) to a second node (6) of the network, one or more perimeters are placed around each symbol designating a departure node of an elementary link of a path of the set, and a respective flag is placed at the intersection between each arc designating an elementary link of the set of paths and a perimeter surrounding the symbol designating the departure node of said elementary link. This depiction technique permits clear visualization of various routing conditions, in a manner which is independent of the positions of the nodes in the graphical representation of the network. It is particularly well suited to computer tools for assisting the design or simulation of networks.

Abstract: A method of setting up two-way optical communication between a central unit and a remote unit suitable for operating in a given communication mode selected from a plurality of communication modes. A plurality of frame patterns is defined in the central unit, with each frame pattern being appropriate to one of the communication modes. The plurality of frame patterns are sent sequentially until a coherent response is obtained from the remote unit, the communication mode of the remote unit being the mode which corresponds to the frame pattern which gave rise to the coherent response.