Abstract: The acceleration detection sensor comprises a plate in which there are defined a support portion, at least one vibrating element carried by the support portion and sensitive to the movements to which the sensor is subjected, and at least one additional portion connected to the vibrating element and active in detecting acceleration, the sensor including a temperature probe comprising a conductive track which is fixed on at least the additional active portion and which is of resistance that varies as a function of ambient temperature.

Abstract: A portable telephone comprises a case fitted with an antenna and pierced with communications openings in one face associated with a speech microphone and with an earpiece. The telephone also has a directional anti-noise microphone connected to the earpiece via an active anti-noise circuit and associated with a first opening that is separate from the communications openings of the speech microphone and of the earpiece.

Abstract: To enable a use of a two-band type mobile telephone with a dual radiation circuit, a selector switch is placed between this dual radiation circuit and transmission channels in each of these bands. Given the emergence of the second harmonic resulting from the presence of the selector switch, the undesirable components are filtered with a filter. A part of the reactive components of this filter is between the radiating circuit and the selector switch, while the other part is in the channel to be filtered. Depending on the nature of the channel, the other part in the channel to be filtered has different values.

Abstract: The vibrating sensor comprises a cell fixed in a housing, the cell comprising a support member and a vibrating member connected to the support member, together with a thermal masking element extending between the vibrating member and a wall of the housing.

Abstract: The radiating cable comprises at least one cable segment (1) comprising a pair of insulated conductor wires (2) having first ends (3) connected to a load (4) equal to an impedance characteristic of the insulated conductor wires, and second ends (5) connected to a connector (6).

Abstract: The hemispherical resonator comprises a bell fixed to a base which carries main electrodes extending in register with an edge of the bell, and a shield electrode subdivided into two portions each presenting auxiliary electrodes extending in regular manner between the main electrodes.

Abstract: In an implementation in rate gyro mode, the method comprises the steps of exciting the vibrating member by means of a combination of control signals comprising an amplitude control signal at the resonant frequency of the vibrating member or at a frequency twice the resonant frequency, a precession control signal at a frequency twice the resonant frequency, and a quadrature control signal at DC, at the resonant frequency, or at a frequency twice the resonant frequency. In free gyro mode, the method includes the steps of applying a combination of signals to common electrodes 5 and of applying said combination in alternation to main electrodes 5.1 and 5.2 and to secondary electrodes 7.1 and 7.2 interleaved between the main electrodes.

Abstract: To resolve problems of communication between a mobile telephone provided with a smart-card reader and the circuits of a smart-card reader, it is planned to provide this mobile telephone with a fourth microprocessor designed to manage the communications of the mobile telephone with the smart card only. This fourth microprocessor then becomes, in competition with a SIM security circuit of the mobile telephone, a master of the microprocessor of the mobile telephone. To resolve the problem of competition resulting from the existence of these two master circuits, it is planned that one of the two will be called upon to execute a command and that it will execute this command if it falls within the commands that are executable by it. If this command is not executable by this first microprocessor, then it is transmitted to the microprocessor of the second master circuit so that this second master circuit executes it. By acting in this way, it is shown that it is very easy to update mobile telephones, even old models.

Abstract: To eliminate the acoustic nuisance caused by a ringing of a mobile telephone (1) in a limited geographical zone (7), a device (8) for the transmission of a signal (9) is placed in this zone (7). The decoy signal (9) is obtained by identifying the radioelectric synchronization signal (10), received by a receiver (11), that is the most powerful signal transmitted in this zone (7) and by producing a replica of this synchronization signal (10). This replica is amplified and desynchronized with respect to the received signal (10). Thus a mobile telephone (1) present in this zone (7) considers this decoy signal (9) to be the most powerful one and will therefore get connected with the dummy transmitter (12) that transmits this dummy signal (9). Thus, the production of acoustic nuisance in this zone (7) is avoided.

Abstract: In a process for establishing communication on the Internet between two devices (1,2) also connected to a telephone network (4), one device (1) calls the other (2) on the telephone network (4) to invite it into communication, transmitting to it an identification signal (N1; IP1) of the calling device (1), the called device (2) connects to the INTERNET (3) and receives an address (IP2), the called device (2) connects to an INTERNET connection server (5) where it registers itself by its address (IP2) and an identifier (N2, IP1) known to the calling device (1), and the calling device (1) connects to the server (5), transmits the identifier (N2, IP1) and the server (5) transmits the address (IP2) of the called device (2), and the calling device (1), knowing the computer address (IP2) of the called device (2), establishes the communication.

Abstract: The office machine comprises a paper roll printer within a chassis (1), with a housing (10) for the paper roll (12), means (4) for driving the roll (12) and a lid (3), for closing the housing (10), upon which the drive means (4) are mounted.

Abstract: The process for controlling the power supply (16) of a telephone (1) of a cellular radiotelephone network (2), of which the transmission power (13) is controlled (14) by the network (2) according to a power class indicated by the telephone (1), consists of determining the charge level of the power supply (16), deducing the maximum transmission power able to be reached, according to the charge level, comparing the maximum transmission power and the transmission power controlled (14) by the network (2), and downgrading the mobile telephone (1) if the former is lower than the latter (14).

Abstract: The terminal includes a unit for entering bets, a unit for printing information on a betting receipt, a unit for checking the validity of a receipt received, a unit for checking that the printed receipts conform with the information to be printed on them, and a unit for invalidating receipts, arranged to be activated under the command of the checking unit. The invention applies well to popular betting games.

Abstract: The process for transmitting data between a radio transmitter rig and a receiver rig, through a disturbing transmission medium, consists in: grouping the data to be transmitted into blocks (Bi), adding redundancy information thereto, and splitting the block (Bi) up into a determined number of bit packets (Pj) and, at the receiving end, an attempt is made to reconstruct the data block (Bi) by utilizing the redundancy information, a process in which: a quality is estimated in respect of the transmission of data and a minimum number of packets (Pj) of the block (Bi) are transmitted, which number is sufficient to reconstruct the block (Bi) and, at the receiving end, the attempted reconstruction of the block (Bi) is performed by investigating the minimum number of packets (Pj).

Abstract: Method for deoxidizing and passivating, by sulphidation, a surface of a III-V compound semiconductor material undergo strong oxidation in the presence of oxygen, wherein the surface to be passivated is immersed in a dilute aqueous solution containing sulphide ions with a concentration of between about 10−1M and 10−7M.

Abstract: A first strapdown navigation unit (2) generating a first state vector (X2u) whose components give position, attitude and speed values of a carrier with a small instantaneous error. The method includes actions consisting of: generating by means of a second navigation unit (1), a second state vector (X1u) whose components give position, attitude and speed values of the said carrier with a small long-term error; combining the first and second state vector to obtain an error observation vector (&dgr;Y); generating an error estimate vector ({circumflex over ( )}&dgr;X2u) from the error observation vector (&dgr;Y), by means of a filter (5); combining the error estimate vector ({circumflex over ( )}&dgr;X2u) thus obtained with the first state vector (X2u) so as to obtain an estimated vector ({circumflex over ( )}X2u) of the carrier position, attitude and speed values with a small instantaneous error and a small long-term error.

Abstract: A transmitter for a radio transmission system has an encoder for encoding data according to an error correction code and supplying a digital output stream of bits which are then distributed over a selectable number of carriers belonging to a group of carriers that are uniformly distributed over a transmission channel, so as to constitute a frequency division multiplex. Then the stream is subjected to time interleaving responsive to a distribution given by the bit spreading module which achieves distribution and frequency interleaving operating on the carriers; the stream is then modulated in phase or possibly a phase and amplitude.

Abstract: A tool for pre-stressing of two races to be welded to one another includes a hub having a cylindrical lateral hub wall and a tubular chuck having a cylindrical lateral chuck wall coaxially received and movable in the lateral hub wall. One of the lateral walls has a cylindrical face of revolution for radially supporting and centering the two races. A first axial abutment is immovable with respect to the chuck and against which a first free axial face is engageable, while a second axial abutment is immovable with respect to the hub and against which a second free axial face is engageable. A coaxial mechanism for axially moving the chuck towards the hub and hence for tightening the second axial abutment axially towards the first axial abutment is provided such that the two races therebetween are tightened against one another until a pre-determined pre-stress value is obtained.

Abstract: To carry out tests on a mobile telephony network, a two-band mobile telephone is used. This mobile telephone is improved by a parametrizing device by which the mobile telephone declares itself to the network either as a single-band telephone in a first frequency band, or as a single-band telephone is a second frequency band, or as a two-band telephone in both these frequency bands. The network then exploits the mobile telephone in the mode corresponding to its declaration. It is possible with only one instrument, to measure all the transmission characteristics of the network.

Abstract: In a speech detection device (13) for detecting a speech signal (SS) in an input signal (ES), including input means (14) arranged to receive an input signal (ES) which can contain a speech signal (SS) and/or a tone signal (CNG, BSY), and including processing means (15) for processing the input signal (ES) and for supplying at least first and second characteristic information (FS1, FS2, FS3, FS4) of the input signal (ES), and including threshold test means (16) for checking whether the first and the second characteristic information (FS1, FS2, FS3, FS4) exceed a threshold value and for supplying at least one item of detection information (D1, D2, D3, D4), and including evaluation means (17) for evaluating the at least one item of detection information (D1, D2, D3, D4) and for supplying speech detection information (SDI) which is characteristic of the presence of a speech signal (SS) in the input signal (ES), the processing means (15) further include filter means (22) adapted to extract a first frequency band s