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: 1. Roll paper feed device (1) for a printing machine (2), comprising a cradle (3) provided with side cheeks (4), means (5, 7) at the bottom of the cradle for supporting a freely rotating paper roll (6) whenever the free end of the paper web (10) is subjected to a traction (9), braking means (13) for the rotating roll (6), which are joined to the cradle and have at least one elastic bearing member (14) against a side of the roll, which member comprises at least one elastically deformable arm (19) joined to the cradle and a protruding zone (16) situated at the free end of the arm and engaged through an opening (17) in the cheek and protruding relative to the inner face of the latter; the protruding zone is in the form of a protruding stub having a flat bearing surface (18) peripherally surrounded by an inclined surface (24, 25) suitable for sliding over the sides of the roll when this is introduced in the cradle.

Abstract: A system (1) for ventilating a box designed to receive electrical or electronic equipment, the box having a top wall including a ventilator opening (4), the system comprising a ventilator unit (5) for mounting on said wall (3) of the box in register with the ventilator opening (4), said ventilator unit (5) comprising a screen (7) in the form of a cylindrical wall for extending around said ventilator opening (4), said screen (7) being provided with perforations (8) to allow air to pass towards the ventilator opening (4), said screen (7) being extended, at its end remote from the ventilator opening (4) by a solid bottom wall (9) that extends substantially perpendicularly to the screen (7) and forms a vessel for recovering liquid.

Abstract: An apparatus (1) into which a first stack (2) of record carriers to be printed and a second stack (5) of record carriers to be scanned can be inserted and which has holder means (25) for holding the first stack, which has load-exerting means (50) for urging the first stack (2) towards the withdrawal means (50), actuating means (63) for moving the load-exerting means (56) and guide means for guiding a record carrier (11) to be scanned, the actuating means (63) for moving the load-exerting means (56) are, in addition, configured as guide means for guiding a record carrier (11) to be scanned.

Abstract: Cooled photosensitive cell (80) comprising a table (50), sensors (66) which are fitted on the table, a screen (80) to prevent parasitic radiation on the sensors, and at least one Joule-Thomson cooler (41, 42) to cool the table and the screen. The table (50) and the screen (80) are cooled by convection, the table (50) being provided with apertures (55) for passage of the cooling flow, which communicate with an annular cavity (63) for cooling of the screen (80).

Abstract: The vibrating sensor includes a cell fixed in a housing, the cell including 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: An electromechanical multiple-disk brake actuator is provided. The actuator includes a first reversible assembly with a central screw, a first electric motor rotating the screw, a first nut displaceable over the screw when the screw is rotated and a connection between the screw and the nut permit reversible displacement. The actuator also has a second non-reversible assembly including an annular screw on the first nut, a second electric motor for rotating the annular screw and the first nut, and a second nut fixed to a frame but axially displaceable over the annual screw when the annular screw is rotated. A piston at one of the ends of the second nut presses the disk against one another to ensure braking.

Abstract: A data transmission module for transmitting data between a radio communication network that transmits data at a specified rate and data processing means includes network interface radio means for interfacing the data processing means with the radio communication network, data adapter means interposed between the network interface radio means and the data processing means through which data flows under the control of a sequencer means, wherein the sequencer means includes means for frequency-locking the sequencer means to the rate of the network. The data transmission process of the module includes the steps of locking the sequencer means to the rate of the network and synchronizing the flow of the data through the adapter means with the network.

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: The invention concerns a temperature-compensated accelerator measurement using two vibrating resonators whereof the frequencies (f1, f2) are measured, then used for determining (18, 19) the most probable temperature value (T) based on the sum f1+f2 and on a pre-established correlation (14) between the temperature and the sum f1+f2 and finally based on the determination (20) of the amount f1?f2 of the weighted temperature value, calculating (21) the temperature compensated value of the acceleration (?).

Abstract: According to the process for transmission of a packet of facsimile data between a first and a second facsimile machine via a transmission network, a process is provided in which the first facsimile machine transmits the data intended for the second facsimile machine and repeats its transmission in the absence of a response within a predetermined period (T). The packet of the first facsimile machine and its moment of transmission are input. The packet is transmitted to the second facsimile machine, a response from the second facsimile machine and the corresponding moment of reception are input, and the interval of time between this moment of reception and the expiry of the period (T) are determined. If the interval of time is greater than a threshold (P), the response of the second facsimile machine is retransmitted to the first facsimile machine. If it is not greater, the response is blocked.

Abstract: A telecommunication cable includes a plurality of modules, each with a thin retaining sheath for clamping optical fibers together. Each retaining sheath contains plural respective modules and is mechanically coupled to the retaining sheaths of the respective modules to form supermodules that contact an outside jacket. The retaining sheath of a supermodule includes an identification color or line to distinguish the supermodules from each other.

Abstract: A process for establishing communication, on the INTERNET (3) between two devices (1, 2) in which one of the two devices (1) calls the other (2) on a telephone network to invite it to communicate on the INTERNET by transmitting a message including a computer address having a first part designating a server (31) for communicating with the first device (1) and the second device (2) on the computer network (3), and the computer address having a second part corresponding in particular to the first device when said first device (1) is communicating with said server (3) the calling device (1) also connecting itself to the INTERNET (3) to receive the computer address for incorporation in the message, and the called device (2) connecting itself to the INTERNET (3) for establishing communication with the calling device.

Abstract: A linear actuator comprises a piston and a rotary electric motor together with means which are interposed between the electric motor and the piston to define a mechanical system for transforming rotary movement of the motor into linear displacement of said piston, the actuator is characterized in that the electric motor is a vibration type motor comprising at least a stator and a rotor together with excitation means for deforming said stator and/or said rotor in modes of vibration combining tangential vibration and normal vibration for driving said rotor in rotation, and in that the means interposed between the electric motor and the piston include means for mechanically decoupling said piston from said electric motor in the event of the electrical power supply to the elector motor being interrupted.

Abstract: The inertial sensor comprises at least one vibrating element having one end connected to a support element and an opposite end connected to a test mass which is hinged to the support element by at least two link elements and which includes a cavity in which the vibrating element and a portion of the support element adjacent to the vibrating element are received. The link elements are housed in the cavity surrounding a portion of the support element to which the link elements are connected.

Abstract: To reduce the effects of disturbing electromagnetic effects on a loudspeaker of a mobile telephone, the loudspeaker is provided with a compensation coil in addition to an excitation coil. The compensation coil is series-connected with the excitation coil. However, it is dispensed of the need for playing a driving role by being bonded to the permanent magnet of the loudspeaker: It is shown that the harmful effects are reduced without stopping the loudspeaker from working.

Abstract: The invention concerns a mechanical resonator with a planar monolithic vibrating structure extending along a closed contour whereof the axis of sensitivity is substantially perpendicular to the plane of said structure. The invention is characterised in that the planar structure (1) is a regular convex polygon with 4k vertices (3) (k being the order of the vibrational mode implemented when the resonator is vibrated) and is suspended to a fixed base (4, 5) via n suspension arms (2) with substantially radial extension arranged substantially symmetrically.

Abstract: This invention relates to a system, especially adapted for high-power motors, comprising at least one rotor (1a; 1b) and means (4a, 4b; 5a, 5b) comprising active elements (7, 8) capable of rotating the rotor(s) (1a; 1b) by their synchronized deformation; said rotating means of the rotor(s) comprising at least one petal (6) comprising a hot top (11), characterized in that the material of each hot top (11) is such that it has a thermal mass capacity (Cp22C) of greater than 0.35 [J/g/K], and/or the material of each rotor (1a; 1b) is such that it has a thermal capacity of greater than 2 [J/cm3/K].

Abstract: A mobile telephone is equipped with a smart-card reader to aid in universal payment by smart card. A security checking circuit of the mobile telephone is provided with a complementary function by which the mobile telephone can behave like a secured smart-card reader with a view to payment. Smart-card payments are facilitated by disassociating an act of payment from an act of purchase which can be done by any means, in particular through the internet.

Abstract: A chip-card payment terminal is capable of being connected both to a base station of a mobile telephony network and to a base station of a private telephony network. A transmission mode selection means provide for preference being given to transmission with the private telephony network because the price scale of these communications is lower.