Abstract: A method and system are disclosed for wireless payment and information collection. A central system generates a personalized application including unique application and transaction identifiers, security keys, and signatures for a user device. The user device implements the personalized application in order to access the services of the associated network. Tags, capable of short-range communication with the user devices, are deployed to service access points of the associated network. The tags and user device mutually authenticate and share identifiers. Validation of the user device results in the tag updating an irreversible counter, generating transaction certificate, and logging this transaction information. The transaction certificate and a portion of the log are communicated to the user device, and service is granted. The user device transmits the transaction information and log to the central system for billing when a network connection is available.

Abstract: The invention relates to a control terminal (20) for determining whether a fare has been paid comprising: a reader (22) for reading a fare card identification number from a fare card; a processing module (25) adapted to implement a one-way function to generate a control number from a fare card identification number; and a comparison unit (27) for comparing the control number to a reference list.

Abstract: Device for setting off an avalanche, comprising a support intended to be fixed to the mounting side, for example on a concrete slab, and an enclosure one end of which is open, this enclosure being mounted on the support, said open end of the enclosure being intended to face towards the snow cap. The device further comprises means of filling the enclosure with an explosive gaseous mixture, firing means designed to set off the explosion of the said mixture and a remote-communication system. The enclosure is mounted removably on the support, by fitting its lower face, intended to receive the gaseous mixture, onto a bearing piece of the support, and the enclosure is autonomous in terms of energy supply and carries means of storing the gases that are intended to form the gaseous mixture.

Abstract: The invention relates to an avalanche triggering device comprising at least one enclosure (4) for confining an explosive gas mixture, having a downward-facing opening and being equipped with gas supply means (15, 16) designed to at least partly fill the volume defined by the enclosure (4) with the explosive gas mixture at a density less than that of the air, the device also comprising means (14) for igniting this mixture; which device is characterized in that the enclosure (4) is in the general shape of a bell or frustoconical shape with an approximately vertical axis.

Abstract: The object of the present invention is a low noise figure amplifier with a variable gain which comprises a cascode amplification stage comprising, serially mounted, a low-voltage MOSFET transistor installed as a common source followed by a bipolar transistor with high breakdown voltage installed as a common base. A resistor is placed between the bipolar transistor's collector and the grid of the cascode stage's MOSFET transistor, and the cascode stage is electrically powered through a choke.

Abstract: Said device comprises a tube (1), one closed end of which is mounted onto a holder (5), for example a concrete mass (6), that is itself attached to a mountainside (7). The other open end (2) of said tube is rotated toward the snow cover (3). The device also comprises a means (8) for filling the tube (1) with an explosive gas mixture and moreover comprises a priming means that induces the explosion of said mixture. Said device is characterized in that it comprises at least two beams (9) that, each being attached by one of the ends thereof to the holder (5), extends along the tube (1) parallel thereto so as to ensure the holding thereof while forming a means for absorbing the movement of the tube (1) following the gas mixture explosion.

Abstract: The invention relates to a control terminal (20) for determining whether a fare has been paid comprising: a reader (22) for reading a fare card identification number from a fare card; a processing module (25) adapted to implement a one-way function to generate a control number from a fare card identification number; and a comparison unit (27) for comparing the control number to a reference list.

Abstract: The invention relates to an avalanche triggering device comprising at least one enclosure (4) for confining an explosive gas mixture, having a downward-facing opening and being equipped with gas supply means (15, 16) designed to at least partly fill the volume defined by the enclosure (4) with the explosive gas mixture at a density less than that of the air, the device also comprising means (14) for igniting this mixture; which device is characterized in that the enclosure (4) is in the general shape of a bell or frustoconical shape with an approximately vertical axis.

Abstract: A sports boot comprising a part comprising at least two superposed layers of plastics and comprising an opening that can be closed by catching means distributed on either side of this opening, wherein one of the two layers has one or more recesses lying on an axis in order to define a deformation axis of the shell, allowing that part of the shell that is around this axis to move away in order to enlarge the opening and make it easier to put the boot on and to take it off.

Abstract: A sports boot comprising a part comprising at least two superposed layers of plastics and comprising an opening that can be closed by catching means distributed on either side of this opening, wherein one of the two layers has one or more recesses lying on an axis in order to define a deformation axis of the shell, allowing that part of the shell that is around this axis to move away in order to enlarge the opening and make it easier to put the boot on and to take it off.

Abstract: A sports boot shell of which at least a part of the wall is composed of a sock covered with a rigid material in plastics material, wherein the sock includes, on its inner surface, an insulating means limiting losses of heat by radiation, which may be a polyurethane coating that includes aluminum particles or aluminum pieces bonded on the inner surface. The process for manufacturing such a boot comprises the step of lasting the sock prior to injection-overmolding of plastics material in order to form the wall of the shell.

Abstract: A system using a smart card without a processor, capable of being coupled without contact to a reader, this card comprising a first read-protected memory area and containing a password and a second memory area containing data of access to a service accessible in write mode, and possibly in read mode, only if the card receives a code identical to the stored password. After an operation on the card such as an access to a service or to a reloading, the password is modified according to data stored in the card, the current value and the previous value of which are known.

Abstract: A contactless card reader comprising an enclosure containing a control circuit connected to a first antenna and capable of remotely exchanging data by the coupling between the first antenna and the antenna of a contactless card. The enclosure contains a diagnosis device comprising a second antenna connected to a test circuit via a switch and means for providing a switch control signal, said test circuit being capable, with no presented contactless card, of exchanging data with the control circuit by the coupling of the first and second antennas when the switch is on to perform a diagnosis of the reader.

Abstract: Disclosed is a novel topology of monolithic, microwave amplifiers with high integration. This is a more compact topology, divided into a two-level or tree-like structure in which the division of the input signal is done firstly on each transistor Tij and, secondly, on each of the elementary transistors tijk of the transistors Tij. More specifically, the input line LE is divided into different basic lines li, each line li supplying lines lij distributed on either side of said lines li, a line lij then supplying a power transistor Tij. Application to microwave amplifiers.