Patents by Inventor Florent Guichard
Florent Guichard 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).
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Patent number: 11613991Abstract: A hybrid sensing apparatus for collecting data inside a well, the apparatus including an optical cable that acquires a first set of data; and an array of discrete probes connected to each other with an electrical cable. The discrete probes are configured to acquire a second set of data. The apparatus further includes an attachment system attached to the discrete probes and configured to hold the optical cable. The attachment system is configured to expose the optical cable to directly contact the well.Type: GrantFiled: December 12, 2018Date of Patent: March 28, 2023Assignee: SERCELInventors: Oleg Valishin, Florent Guichard, Frédéric Nicolas, Clément Visseaux
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Patent number: 11270815Abstract: A hybrid cable for collecting data inside a well includes an electrical cable extending along a longitudinal axis of the hybrid cable, an optical fiber extending along the longitudinal axis, an armor that extends along the longitudinal axis, and encircles the electrical cable and the optical fiber, and a connecting device extending along the longitudinal axis, to enclose the electrical cable and the optical fiber, and to be enclosed by the armor. The connecting device has an unsmooth external surface.Type: GrantFiled: May 5, 2020Date of Patent: March 8, 2022Assignee: SERCELInventors: Frédéric Nicolas, Oleg Valishin, Florent Guichard
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Publication number: 20210350953Abstract: A hybrid cable for collecting data inside a well includes an electrical cable extending along a longitudinal axis of the hybrid cable, an optical fiber extending along the longitudinal axis, an armor that extends along the longitudinal axis, and encircles the electrical cable and the optical fiber, and a connecting device extending along the longitudinal axis, to enclose the electrical cable and the optical fiber, and to be enclosed by the armor. The connecting device has an unsmooth external surface.Type: ApplicationFiled: May 5, 2020Publication date: November 11, 2021Inventors: Frédéric NICOLAS, Oleg VALISHIN, Florent GUICHARD
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Publication number: 20210333683Abstract: Disclosed is a system for compressing short or ultra-short light pulses emitted by a light source. The compression system includes:—a first non-linear light pulse compression module including a multi-pass cell, the multi-pass cell including a first non-linear optical medium; and—a second non-linear light pulse compression module including a capillary filled with a gaseous second non-linear optical medium, and a compressor arranged at the output of the capillary, the first non-linear compression module and the second non-linear compression module being arranged in series on the path of a source light beam of source light pulses. Also disclosed is a light-pulses laser system and to a method for compressing short or ultra-short light pulses.Type: ApplicationFiled: October 9, 2019Publication date: October 28, 2021Inventors: Yoann ZAOUTER, Florent GUICHARD, Loïc LAVENU, Marc HANNA
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Publication number: 20200190973Abstract: A hybrid sensing apparatus for collecting data inside a well, the apparatus including an optical cable that acquires a first set of data; and an array of discrete probes connected to each other with an electrical cable. The discrete probes are configured to acquire a second set of data. The apparatus further includes an attachment system attached to the discrete probes and configured to hold the optical cable. The attachment system is configured to expose the optical cable to directly contact the well.Type: ApplicationFiled: December 12, 2018Publication date: June 18, 2020Inventors: Oleg VALISHIN, Florent GUICHARD, Frédéric NICOLAS, Clément VISSEAUX
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Patent number: 9588562Abstract: A method for waking up a distant device from a local device, through a transmission medium and distant and local media converters. Initially, at least one of the physical and link layer units of the distant device is off, and its processing layer unit is off or in Low Power mode. The transceiver of the distant media converter is on. When receiving an initial wake-up signal from the local device, the transceiver of the distant media converter generates an electrical wake-up signal converted from the initial wake-up signal. The transceiver of the distant media converter sends the electrical wake-up signal, or derived wake-up information, to the processing layer unit of the distant device, through a transmission line independent of the physical and link layer units of the distant device. When receiving the electrical wake-up signal or the wake-up information, the processing layer unit of the distant device turns on.Type: GrantFiled: January 19, 2015Date of Patent: March 7, 2017Assignee: SERCELInventors: Florent Guichard, Christian Gregoire, Jacques Thebaud
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Patent number: 9513388Abstract: It is proposed a method for providing synchronization in a data acquisition system including a plurality of acquisition units. A given acquisition unit of the plurality carries out the following steps: receiving a packet from another device of the data acquisition system; extracting a synchronization accuracy information and a reference clock information from the received packet; obtaining a first reference clock as a function of the extracted reference clock information; if the extracted synchronization accuracy information indicates a better synchronization accuracy than a current synchronization accuracy information associated to the given acquisition unit: taking the obtained first reference clock as a selected reference clock and updating the current synchronization accuracy information to indicate a lower synchronization accuracy than the extracted synchronization accuracy information.Type: GrantFiled: July 16, 2014Date of Patent: December 6, 2016Assignee: SERCELInventors: Florent Guichard, Gwenael Housin, Sophie Lostanlen-Nouy, Fabien Le Moine
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Publication number: 20150372716Abstract: A method for setting frequency channels in a multi-hop wireless mesh network including a plurality of nodes. Each node hops on frequency channels, with a hop period, according to a frequency channels hopping sequence. All data packets transmitted by the nodes have a duration strictly longer than the hop period. When a given node of the plurality of nodes is in a first transmit mode in order to transmit a data packet, it carries out steps of: selecting a transmit frequency channel as a function of the frequency channels hopping sequence; and transmitting the data packet using, for the entire duration of the data packet, the selected transmit frequency channel.Type: ApplicationFiled: September 2, 2015Publication date: December 24, 2015Inventors: Florent GUICHARD, Fabien LE MOINE, Sophie LOSTANLEN-NOUY
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Publication number: 20150260864Abstract: It is proposed a method for providing synchronization in a data acquisition system including a plurality of acquisition units. A given acquisition unit of the plurality carries out the following steps: receiving a packet from another device of the data acquisition system; extracting a synchronization accuracy information and a reference clock information from the received packet; obtaining a first reference clock as a function of the extracted reference clock information; if the extracted synchronization accuracy information indicates a better synchronization accuracy than a current synchronization accuracy information associated to the given acquisition unit: taking the obtained first reference clock as a selected reference clock and updating the current synchronization accuracy information to indicate a lower synchronization accuracy than the extracted synchronization accuracy information.Type: ApplicationFiled: July 16, 2014Publication date: September 17, 2015Inventors: Florent Guichard, Gwenael Housin, Sophie Lostanlen-Nouy, Fabien Le Moine
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Publication number: 20150212562Abstract: A method for waking up a distant device from a local device, through a transmission medium and distant and local media converters. Initially, at least one of the physical and link layer units of the distant device is off, and its processing layer unit is off or in Low Power mode. The transceiver of the distant media converter is on. When receiving an initial wake-up signal from the local device, the transceiver of the distant media converter generates an electrical wake-up signal converted from the initial wake-up signal. The transceiver of the distant media converter sends the electrical wake-up signal, or derived wake-up information, to the processing layer unit of the distant device, through a transmission line independent of the physical and link layer units of the distant device. When receiving the electrical wake-up signal or the wake-up information, the processing layer unit of the distant device turns on.Type: ApplicationFiled: January 19, 2015Publication date: July 30, 2015Inventors: Florent Guichard, Christian Gregoire, Jacques Thebaud
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Publication number: 20140146857Abstract: A method for setting frequency channels in a multi-hop wireless mesh network including a plurality of nodes. Each node hops on frequency channels, with a hop period, according to a frequency channels hopping sequence. All data packets transmitted by the nodes have a duration strictly longer than the hop period. When a given node of the plurality of nodes is in a first transmit mode in order to transmit a data packet, it carries out steps of: selecting a transmit frequency channel as a function of the frequency channels hopping sequence; and transmitting the data packet using, for the entire duration of the data packet, the selected transmit frequency channel.Type: ApplicationFiled: November 27, 2013Publication date: May 29, 2014Inventors: Florent Guichard, Fabien Le Moine, Sophie Lostanlen-Nouy
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Patent number: 7869443Abstract: The invention relates to a device and a method, data acquisition device consisting of a wireless network comprising a first assembly of nodes, termed active nodes (100) of the network, and a second assembly of nodes, termed peripheral nodes (110) of the network, network for which one wishes to perform an access from peripheral nodes (110) to the network of active nodes (100), characterized in that it comprises means for organizing in a perfectly controlled manner a routing of the data and/or commands within the network of active nodes (100) according to a first mode of transmission of data and/or of commands, and means for transmitting data between the peripheral nodes (110) and the active nodes (100) according to a second mode of transmission of data, said first mode of transmission of data and/or of commands and said second mode of transmission of data being temporally separated.Type: GrantFiled: November 1, 2005Date of Patent: January 11, 2011Assignee: SercelInventors: Pierre Sagot, Florent Guichard, Stéphane Molton
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Publication number: 20070025365Abstract: The invention relates to a device and a method, data acquisition device consisting of a wireless network comprising a first assembly of nodes, termed active nodes (100) of the network, and a second assembly of nodes, termed peripheral nodes (110) of the network, network for which one wishes to perform an access from peripheral nodes (110) to the network of active nodes (100), characterized in that it comprises means for organizing in a perfectly controlled manner a routing of the data and/or commands within the network of active nodes (100) according to a first mode of transmission of data and/or of commands, and means for transmitting data between the peripheral nodes (110) and the active nodes (100) according to a second mode of transmission of data, said first mode of transmission of data and/or of commands and said second mode of transmission of data being temporally separated.Type: ApplicationFiled: November 1, 2005Publication date: February 1, 2007Inventors: Pierre Sagot, Florent Guichard, Stephane Molton