Rollet, FR
Alain-Christophe Rollet, La Ciotat FR
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20120311239 | DATA INTERLEAVING SCHEME FOR AN EXTERNAL MEMORY OF A SECURE MICROCONTROLLER - The invention relates to methods of interleaving payload data and integrity control data in an external memory interfaced with a microcontroller to improve data integrity check, enhance data confidentiality and save internal memory. Data words and are received for storing in the external memory. Each data word is used to generate a respective integrity word, while an associated logic address is translated to two physical addresses in the external memory, one for the data word and the other for the integrity word. The two physical addresses for the data and integrity words are interleaved in the external memory, and sometimes, in a periodic scheme. In particular, each data word may be associated to an integrity sub-word included in an integrity word having the same length with that of a data word. The external memory may have dedicated regions for the data words and the integrity words, respectively. | 12-06-2012 |
Alain-Christophe Rollet, La Cadiere D'Azur FR
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20120018288 | KEYPAD HAVING TAMPER-RESISTANT KEYS - A tamper resistant keypad includes one or more key assemblies having a resilient key member and a contact. The resilient key member is configured to flex when the key assembly is depressed to allow the contact to close a key press detection circuit on a circuit board to register a key press. A tamper detection switch assembly at least partially surrounds the resilient key member. The tamper detection switch assembly is configured to detect attempts to access the key assembly. | 01-26-2012 |
Alaine-Christophe Rollet, La Ciotat FR
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20160098918 | TAMPER DETECTION SYSTEMS AND METHODS FOR INDUSTRIAL & METERING DEVICES NOT REQUIRING A BATTERY - Embodiments of the invention prevent unauthorized access to electronic systems by providing an enclosure with improved intrusion detection around sensitive areas of a secured electronic system. Certain embodiments eliminate the need for constant battery power and yet provide uninterrupted high-security supervision at the device perimeter such that even following a power down event it is possible to determine whether a device has been tampered with, so that appropriate action can be taken. This is especially useful in applications in which batteries are not acceptable. | 04-07-2016 |
Benjamin Rollet, Foix FR
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20130123800 | Surgical Instrument - An endoscopic surgical instrument with an elongate shaft, a surgical tool arranged at a distal end of the shaft for conducting surgical manipulations and a handle arranged at a proximal end of the shaft for actuating the surgical tool. The shaft has an elongate shaft tube and an elongate actuation rod arranged movably within the shaft tube, the tool and the handle both being connected to the shaft tube and the actuating rod such that the tool can be actuated by the handle through a motion of the actuating rod relative to the shaft tube. | 05-16-2013 |
Benoit Rollet, Maisons-Lafitte FR
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20130000973 | ELECTRICAL LINE FURNISHED WITH SCREEN-BREAK JUNCTIONS - A three-phase, buried, high-voltage electrical line has three phase-conducting cables ( | 01-03-2013 |
Bernard Rollet, Le Plessis Pate FR
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20090007891 | Device For Distributing Recirculated Gases, Device For Cooling Recirculated Gases And Method Of Recirculating Exhaust Gases - A device for distributing recirculated gases to a component of an exhaust gas recirculation system. The device includes an inlet and an outlet for recirculated gases, an inlet port and an outlet port to the component, and a mechanism to reverse the stream of recirculated gases flowing through the component. A device for cooling recirculated exhaust gases is equipped with a mechanism to reverse the stream of recirculated gases inside the exchanger. A method of recirculating exhaust gases includes cleaning the EGR system, which is triggered by an electronic unit, and which includes reversing the stream of EGR gases flowing through an EGR cooling device. | 01-08-2009 |
Claude Rollet, Ornex FR
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20110062118 | METHOD AND MACHINE FOR MACHINING PARTS USING SPARK-EROSION MILLING - Spark-erosion machining method and machine implementing a machining gap, a process regulator, a numerical control system, a Nominal Trajectory. The latter describes the movement of the tool electrode relative to the part as it ought to proceed if no disturbance were to occur during the machining. Information contained in the Nominal Trajectory is used to define at least two control vectors Vg, Vp which orient, within the coordinate system XYZ, two independent regulation movements. The first, or Gap Vector Vg, defines the direction in which a first regulation movement of the axes of the machine must be performed to maintain the removal of material. The second, or Position Vector Vp, defines the direction in which a second regulation movement of the axes of the machining machine must be performed to correct a tool electrode position error. The respective amplitudes of the regulation movements are calculated in real time by the process regulator. | 03-17-2011 |
20140200708 | ELECTRICAL DISCHARGE MILLING MACHINE - The invention relates to electrical discharge milling machines using tool electrodes subject to longitudinal wear. The inventive discharge milling machine is equipped with a numerical controller executing at least one control cycle for compensating the wear considering the following steps: | 07-17-2014 |
Fulgence Rollet, Toulouse FR
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20090105943 | METHOD AND DEVICE FOR CREATING AN AIRCRAFT FLIGHT PLAN | 04-23-2009 |
20090287787 | Process for transmitting data between at least one cockpit display screen and at least one remote client system - A process for transmitting data between at least one display screen in a cockpit and at least one remote client system includes at least one computer, in which the display screen displays a first request to send a message in a first communication protocol; this message is sent to the remote client system over a first link using a second communication protocol. A request to confirm a message is generated and displayed on the display screen via a communication interface designed to receive and generate messages in this first communication protocol, and to receive and generate messages that can be received by the remote client system. The request to confirm the message from the first request is validated by activating a confirmation device separate from the at least one display screen; activating this confirmation device sends a confirmation message via a router system to the remote system awaiting confirmation; this confirmation message, not generated in the first protocol, can be received by the remote client system awaiting confirmation; the router system includes at least one second link separate from the first link. | 11-19-2009 |
Pascale Rollet, Le Plessis Pate FR
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20090047127 | TURBOMACHINE DIFFUSER - A turbomachine comprising: | 02-19-2009 |
20090100840 | COMBUSTION CHAMBER WITH OPTIMISED DILUTION AND TURBOMACHINE PROVIDED WITH SAME - The invention relates to the field of turbomachines and concerns a combustion chamber ( | 04-23-2009 |
Renan Rollet, Bagnolet FR
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20130208092 | SYSTEM FOR CREATING THREE-DIMENSIONAL REPRESENTATIONS FROM REAL MODELS HAVING SIMILAR AND PRE-DETERMINED CHARACTERISITICS - A particular subject of the invention is the creation of three-dimensional representations from real models having similar and predetermined characteristics, using a system comprising a support suitable for receiving such a real object, configured to present the object in a pose similar to that of use of said at least one real object, an image acquisition device configured to obtain at least two distinct images of the real object from at least two separate viewpoints and a data processing device configured to receive these images, to clip a representation of the real object in each of these images in order to obtain at least two textures of the real object, obtaining a generic three-dimensional model of the real object and creating a three-dimensional model of the real object from the textures and the generic three-dimensional model obtained. | 08-15-2013 |
Romain Rollet, L'Hermitage FR
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20130315596 | OPTIMIZED DYNAMIC BANDWIDTH SCHEDULER - A method allocating timeslots for transmission of data packets and REPORT messages in a communication network including plural logical links managed by a terminal, including: implemented at each cycle by the terminal receiving at least one REPORT message from at least one logical link, the REPORT message including an updated queue length expressed in timeslots of the logical link and, upon receiving the REPORT message, updating the image queue length, based on the updated queue length; allocating to logical links having non-zero image queue length at least one timeslot in a next cycle based on a theoretical transmission time for transmitting data packets or REPORT messages and based on a fraction of overhead associated with the transmission, until all timeslots of the next cycle are allocated or all image queue lengths are zero, and incrementing the theoretical transmission time of each logical link based on its required minimum bit rate. | 11-28-2013 |
Romain Rollet, Rennes FR
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20080216160 | ROBUST DIGEST AUTHENTICATION METHOD - The present invention relates to a method of authenticating a user in a communication system comprising a user terminal and an authentication server which is capable of storing two types of nonce values, namely dedicated nonce values unique in the system and common nonce values shared between users in the system. In the method the authentication server receives ( | 09-04-2008 |
20080256247 | PROTECTION OF DATA TRANSMISSION NETWORK SYSTEMS AGAINST BUFFER OVERSIZING - A method of managing the allocation to TCP connections of memory blocks of a TCP re-assembly buffer in a TCP network device including a TCP Processing unit, comprises computing a function r(t) on a per connection basis, that measures the occupancy rate of the re-assembly buffer for the relevant TCP connection, and that is updated upon reception of any packet belonging to said TCP connection; and allowing the TCP connection to be closed and the corresponding memory blocks to be released based on a decision scheme that includes at least a first trigger set on the corresponding function r(t), which defines two different states for said function r(t). | 10-16-2008 |
Stéphane Rollet, Valence FR
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20160109578 | DISRUPTION DETECTION OF A POSITIONING MEASUREMENT DIFFERENTIAL CORRECTION MESSAGE OF A SATELLITE GEOLOCATION DEVICE - The invention relates to a disruption detection method and device for a positioning measurement correction message of a satellite geolocation device, able to receive a composite radio signal including a plurality of signals each emitted by a satellite in view of the geolocation device, and a positioning measurement differential correction message (MC) emitted by a satellite geolocation precision augmentation system. The device ( | 04-21-2016 |
Stèphane Rollet, Chabeuil FR
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20100245168 | Methods of Calculating the Position of a GNSS Receiver from Two-Frequency and Single-Frequency Pseudo-Measurements - The method of determination of the position of a mobile receiver using at least four satellites of which at least one first satellite transmits a first signal on one frequency, the broadcasting of the first signal being single-frequency, and of which at least one second satellite transmits second and third signals respectively on a first and a second frequency, the broadcasting of the signals being two-frequency, the receiver including means for reception of at least two frequencies, makes it possible to determine the position by a calculation of at least four pseudo-distances corresponding to the distances between each satellite and the receiver. | 09-30-2010 |
20110095943 | Multifrequency Receiver Intended for Satellite Location - A multifrequency receiver comprises a first receiving subsystem comprising: means for receiving at least a first and a second distinct frequency at least one of which comprises a signal containing information relating to the position of a satellite, the said receiving means comprising: a first amplification stage delivering a first filtered signal based on the signal received by the receiver; a second stage for processing each of the received frequencies; a third stage comprising a mixer and at least one local oscillator; and a fourth amplification and filtering stage making it possible to amplify the filtered signal at the output of the mixer. The second stage comprises: a first switch; means for amplifying the signals of the two channels; and a second switch making it possible to deliver the signal to the third stage. | 04-28-2011 |
Stèphane Rollet, Chabeuil FR
Patent application number | Description | Published |
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20100245168 | Methods of Calculating the Position of a GNSS Receiver from Two-Frequency and Single-Frequency Pseudo-Measurements - The method of determination of the position of a mobile receiver using at least four satellites of which at least one first satellite transmits a first signal on one frequency, the broadcasting of the first signal being single-frequency, and of which at least one second satellite transmits second and third signals respectively on a first and a second frequency, the broadcasting of the signals being two-frequency, the receiver including means for reception of at least two frequencies, makes it possible to determine the position by a calculation of at least four pseudo-distances corresponding to the distances between each satellite and the receiver. | 09-30-2010 |
20110095943 | Multifrequency Receiver Intended for Satellite Location - A multifrequency receiver comprises a first receiving subsystem comprising: means for receiving at least a first and a second distinct frequency at least one of which comprises a signal containing information relating to the position of a satellite, the said receiving means comprising: a first amplification stage delivering a first filtered signal based on the signal received by the receiver; a second stage for processing each of the received frequencies; a third stage comprising a mixer and at least one local oscillator; and a fourth amplification and filtering stage making it possible to amplify the filtered signal at the output of the mixer. The second stage comprises: a first switch; means for amplifying the signals of the two channels; and a second switch making it possible to deliver the signal to the third stage. | 04-28-2011 |
20150362598 | ONBOARD AIRCRAFT LANDING SYSTEM, BASED ON A GNSS SYSTEM, WITH REDUNDANT AND DISSIMILAR ARCHITECTURE FOR HIGH INTEGRITY LEVEL - Device for receiving radio-navigation signals, for aiding the piloting of an aircraft, comprising a first master GNSS module and a second slave GNSS module which are dissimilar, the first master GNSS module comprising a first means for processing radio-navigation signals and a first means for computing guidance data (X | 12-17-2015 |
Vincent Rollet, Saint Jean Le Vieux FR
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20090076621 | ORTHOPEDIC DEVICE FOR AN ARTICULAR JOINT - An orthopedic device for ball and socket joint reconstruction. The anchor stem is adapted to be anchored in a medullary canal. A proximal portion of the anchor stem includes a threaded hole oriented along a longitudinal axis thereof. Metaphyseal portion includes a proximal end with recess and a longitudinal bore in fluid communication with the recess, and a distal end adapted to interface with the proximal portion of the anchor stem. An anti-rotation structure is preferably located at an interface of the anchoring stem to the metaphyseal portion to prevent rotation of the anchor stem relative to the metaphyseal portion around the longitudinal axis. A fastener is provided to extend through the longitudinal bore and to engage with the threaded hole on the anchor stem to fix the metaphyseal portion to the anchoring stem. The locking assembly is located in the recess and mechanically couples the head of the fastener to the metaphyseal portion to limit rotation of the fastener relative to the metaphyseal portion. An insert with an articular surface is provided that engages with the proximal end of the metaphysical portion and extends over the recess in the metaphyseal portion. | 03-19-2009 |