Patents by Inventor Pascal Rousseau

Pascal Rousseau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130286376
    Abstract: An optical apparatus for ranging and communication in free space comprises a rangefinder comprising a device for transmitting an optical signal to a target and a device for receiving the signals backscattered by the target. A system for optical communication in free space comprises a device for transmitting an optical signal to a remote optical receiving device. The transmitting device of the rangefinder and transmitting device of the communication system is a transmitting device common to the rangefinder and communication system and transmitting pulses of peak power greater than 50 W and shape factor less than 0.01 or a modulated continuous signal of peak power less than 10 W and shape factor equal to approximately 0.5 and the apparatus comprises a supervisor controlling the common transmitting device according to two modes, the pulse mode to perform the ranging function, or the modulated continuous mode to perform the optical communication function.
    Type: Application
    Filed: November 18, 2011
    Publication date: October 31, 2013
    Applicant: THALES
    Inventor: Pascal Rousseau
  • Patent number: 8494015
    Abstract: A laser device suitable for emitting pulses with a variable period and with stabilized energy includes: a resonant cavity including an amplifying medium presenting a stabilized gain G and suitable for emitting laser pulses at a wavelength ?, and a Q-switch, and a source of continuous pumping of the amplifying medium. It furthermore includes an injector positioned outside the resonant cavity, suitable for emitting a beam of wavelength ? into the amplifying material for the duration of the pumping, and which includes means for adjusting the power of this beam in order to reduce the gain of the amplifying medium to G/k, where k is a real number greater than 1.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: July 23, 2013
    Assignee: Thales
    Inventor: Pascal Rousseau
  • Publication number: 20120263199
    Abstract: A laser device suitable for emitting pulses with a variable period and with stabilized energy includes: a resonant cavity including an amplifying medium presenting a stabilized gain G and suitable for emitting laser pulses at a wavelength ?, and a Q-switch, and a source of continuous pumping of the amplifying medium. It furthermore includes an injector positioned outside the resonant cavity, suitable for emitting a beam of wavelength ? into the amplifying material for the duration of the pumping, and which includes means for adjusting the power of this beam in order to reduce the gain of the amplifying medium to G/k, where k is a real number greater than 1.
    Type: Application
    Filed: December 15, 2010
    Publication date: October 18, 2012
    Applicant: THALES
    Inventor: Pascal Rousseau
  • Patent number: 8238269
    Abstract: A method is proposed for balancing a latency of transmission of data content in a communications tree in a synchronous communications network, the communications tree comprising a root node on which a junction terminal is connected, the communications tree comprising leaf nodes on which terminals are connected, the root node and the leaf nodes being interconnected by intermediate nodes, the nodes being interconnected by links. The method comprises determining, for each node of the communications tree, a maximum value of latency associated with each path going from said node up to leaf nodes in a direction opposite to the junction terminal, and applying to each link at a node, the link running from the node in the direction opposite to the junction terminal, a supplement of latency balancing that corresponds to a difference between a maximum value of latency of each link and a maximum value.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 7, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Pascal Rousseau, Tristan Halna Du Fretay, Yacine El Kolli
  • Publication number: 20110235020
    Abstract: A range finder includes a device for transmitting a laser beam and a device for receiving the laser echoes backscattered by a target, comprising a frontal optical system focusing the echoes on a detection zone which comprises at least one elementary detection zone associated with an individual detector with a large bandwidth, referred to as a temporal detector, and means for transporting the detection zone to the individual detector. An elementary zone is furthermore associated with a low-noise individual detector, referred to as a spatial detector, and the receive device furthermore comprises, connected to the transporting means, a switch suitable for associating said elementary detection zone with the temporal detector and with the spatial detector, alternately or in a static manner.
    Type: Application
    Filed: December 3, 2009
    Publication date: September 29, 2011
    Applicant: THALES
    Inventor: Pascal Rousseau
  • Publication number: 20110235662
    Abstract: An optical pumping structure for lasers includes: an active medium in the form of a cylindrical rod with a circular cross-section, said rod being inserted at its ends into two rings made of a thermally conductive material; at least three stacks of pumping diode strips arranged in the form of a star around the rod; and a support temperature-regulated by a Peltier-effect module. The rings are in contact with the support, and a stack of diodes, called bottom stack, being situated between the rod and the support, and the structure comprises, for each other stack, a thermal conduction block forming a support for said stack, these blocks being mounted on the cooled support and not being in contact with one another or with the rings.
    Type: Application
    Filed: July 6, 2009
    Publication date: September 29, 2011
    Applicant: THALES
    Inventors: François Lureau, Pascal Rousseau, Marc Renaud, Alain Feral, Alain Nicolini
  • Publication number: 20110116072
    Abstract: The present invention relates to a range-finder comprising a laser pulse emission device and a device for detecting the pulses reflected by a distant object. The emission device is capable of emitting pulses of N distinct wavelengths, N being an integer greater than 1, with, for each wavelength, a pulse repetition frequency less than a predetermined threshold frequency. Thus, no given wavelength emission will be faced with the problem of distance ambiguity.
    Type: Application
    Filed: February 29, 2008
    Publication date: May 19, 2011
    Inventor: Pascal Rousseau
  • Patent number: 7894364
    Abstract: In a tunnel incoming end-point, for each data packet, the data packet coming from a source device belonging to a same sub-network as the tunnel incoming end-point is received. An effective channel from among the transmission channels is selected, as a function of a protocol associated with the payload data contained in the received packet, and of a piece of information on quality of transport linked to current conditions of transmission on the transmission channels, the piece of information depending on the protocol associated with the payload data contained in the received packet. The received packet is then encapsulated, according to a transport protocol associated with the effective channel, used to obtain a packet to be sent, and the packet to be sent in the tunnel are transmitted on the effective channel selected.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: February 22, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Stéphane Baron, Pascal Rousseau
  • Patent number: 7871585
    Abstract: The invention relates to a method for treating fumes generated during the production, conversion and/or handling of oil-based products and a device for carrying out said method. The invention further relates to the use of the method or device in which the trapping device comprises at least one fluidized bed of granular material in the preparation of a granular material for use in production of road materials.
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: January 18, 2011
    Assignee: Eurovia
    Inventors: Michel Maze, Jean-Pierre Marchand, Jacques Amouroux, Sergey Dresvin, Pascal Rousseau
  • Publication number: 20100149985
    Abstract: According to the method for balancing a latency of transmission of at least one data content in a communications tree defined in a synchronous communications network, the communications tree comprising a root node to which there is connected a junction terminal which is a convergence terminal in the context of a capture application or divergence terminal in the context of a broadcast application, the communications tree furthermore comprising the leaf nodes to which there are connected capture terminals, for capturing or broadcast terminals, for broadcasting, the root node and the leaf nodes being interconnected by intermediate nodes, the nodes being interconnected by links, steps are performed for: determining, for each node of the communications tree, a maximum value of latency associated with each path going from the node up to leaf nodes in a direction opposite to the junction terminal, and applying to each link at a node, the link running from the node in the direction opposite to the junction termina
    Type: Application
    Filed: December 11, 2009
    Publication date: June 17, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Pascal Rousseau, Tristan Halna Du Fretay, Yacine El Kolli
  • Publication number: 20090034416
    Abstract: A method is proposed for the transmission of data packets in a tunnel interconnecting two sub-networks in order to form a general communications network, the tunnel being implemented between two tunnel end-points, each of the sub-networks comprising a distinct tunnel end-point among the tunnel end-points, the tunnel implementing at least two transmission channels, the method being implemented by one of the tunnel end-points, known as a tunnel incoming end-point.
    Type: Application
    Filed: July 21, 2008
    Publication date: February 5, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Stephane Baron, Pascal Rousseau
  • Patent number: 7370094
    Abstract: In order to adjust the maximum size of the information sequences transmitted by a plurality of terminals in a network, according to a predetermined network protocol, between two subnetworks supporting different maximum sizes of information sequence: there is stored in an information base, for each of the terminals, an identifier for this terminal and the maximum size of the information sequences allowed by the network protocol for communicating with this terminal; the information base is updated from the analysis of any information sequence conveyed in one of the subnetworks; then, for each information sequence to be transmitted: the identifier of the destination terminal and the corresponding maximum size of the information sequences are read in the information base; the maximum size read is compared with the current maximum size allowed by the network protocol; and, if the maximum size read is less than the current maximum size, the current maximum size is adjusted by allocating to it the value of the maxim
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: May 6, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Pascal Rousseau, Patrice Nezou
  • Publication number: 20070196254
    Abstract: The invention relates to a method for treating fumes generated during the production, conversion and/or handling of oil-based products and a device for carrying out said method. The invention further relates to the use of the method or device in which the trapping device comprises at least one fluidised bed of granular material in the preparation of a granular material for use in production of road materials.
    Type: Application
    Filed: December 24, 2004
    Publication date: August 23, 2007
    Inventors: Michel Maze, Jean-Pierre Marchand, Jacques Amouroux, Sergey Dresvin, Pascal Rousseau
  • Patent number: 7260653
    Abstract: The present invention relates to a method of synchronization between communication networks exchanging information by frame of informations, each communication network having clock and the number of clock pulses is monitored by a counter the synchronization is made by reading information representing the counted clock pulses of the clock of the first network at the appearance of a reference event, inserting at least said information or calculated information on the basis of said information into the frame of information as the synchronization information, transferring said frame of information from the first to the second network, reading information representing the number of counted clock pulse of the clock of the second network at the appearance of reference event, reading synchronization information inserted in received frame of information from the first network, calculating a difference between information and synchronizing the second network.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: August 21, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Lionel Le Scolan, Mohamed Braneci, Patrice Nezou, Pascal Rousseau
  • Patent number: 7058729
    Abstract: The present invention relates to a method of synchronisation between communication networks exchanging information by frame of informations, each communication network having clock and the number of clock pulses is monitored by a counter. The synchronisation is made by reading information representing the counted clock pulses of the clock of the first network at the appearance of a reference event, inserting at least said information or calculated information on the basis of said information into the frame of information as the synchronisation information, transferring said frame of information from the first to the second network, reading information representing the number of counted clock pulse of the clock of the second network at the appearance of reference event, reading synchronisation information inserted in received frame of information from the first network, calculating a difference between information and synchronising the second network.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: June 6, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Lionel Le Scolan, Mohamed Braneci, Patrice Nezou, Pascal Rousseau
  • Publication number: 20050237928
    Abstract: The present invention relates to a method of synchronization between communication networks exchanging information by frame of informations, each communication network having clock and the number of clock pulses is monitored by a counter the synchronization is made by reading information representing the counted clock pulses of the clock of the first network at the appearance of a reference event, inserting at least said information or calculated information on the basis of said information into the frame of information as the synchronization information, transferring said frame of information from the first to the second network, reading information representing the number of counted clock pulse of the clock of the second network at the appearance of reference event, reading synchronization information inserted in received frame of information from the first network, calculating a difference between information and synchronizing the second network.
    Type: Application
    Filed: June 17, 2005
    Publication date: October 27, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Lionel Le Scolan, Mohamed Braneci, Patrice Nezou, Pascal Rousseau
  • Patent number: 6954471
    Abstract: The present invention concerns a method and an apparatus of generating a reference event in a receiving node receiving frames of information, when a frame of information is received, the method and the apparatus sample the frame of information in order to form sampled data, process sampled data in order to detect among said sampled data a specific data, monitor the number of processed sampled data until the detection of a specific data and generate a reference event according to the result of processing and monitoring.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: October 11, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Samuel Rousselin, Philippe Le Bars, Lionel Le Scolan, François Thoumy, Frédérique Ehrmann, Mohamed Braneci, Patrice Nezou, Pascal Rousseau
  • Patent number: 6857096
    Abstract: An information packet transmission device for a communication system has a transmission part and a reception part, at least one of the transmission or reception parts having a turbocoder, and an external interleaver upstream of the turbocoder. The turbocoder preferentially has an interleaver, and a deinterleaver of the “x to xe” type. The external interleavers are of the row column or column row type.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: February 15, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mohamed Braneci, Patrice Nezou, Pascal Rousseau
  • Patent number: 6697855
    Abstract: The invention concerns a method for access to a transmission channel shared between several stations, characterised in that it includes iteratively: an operation (302) of estimating requirements of each of the stations for access to the transmission channel, an operation of determining groups (303 and 307) of stations taking into account the estimated access requirements of the stations, at least one of the groups of stations being said to be “collective”, an operation of allocating (308), to each of the groups, access rights each corresponding to an interval of time during which the stations which do not form part of the group are not authorised to access the transmission channel, and during which, if the group is collective, each station which it includes gains access to the transmission channel according to a contention method.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: February 24, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Claude Le Dantec, Pascal Rousseau
  • Publication number: 20030208615
    Abstract: In order to adjust the maximum size of the information sequences transmitted by a plurality of terminals in a network, according to a predetermined network protocol, between two subnetworks supporting different maximum sizes of information sequence: there is stored in an information base, for each of the terminals, an identifier for this terminal and the maximum size of the information sequences allowed by the network protocol for communicating with this terminal; the information base is updated from the analysis of any information sequence conveyed in one of the subnetworks; then, for each information sequence to be transmitted: the identifier of the destination terminal and the corresponding maximum size of the information sequences are read in the information base; the maximum size read is compared with the current maximum size allowed by the network protocol; and, if the maximum size read is less than the current maximum size, the current maximum size is adjusted by allocating to it the value of the maxim
    Type: Application
    Filed: April 15, 2003
    Publication date: November 6, 2003
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Pascal Rousseau, Patrice Nezou