Patents by Inventor Lionel Le Scolan
Lionel Le Scolan 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: 11316605Abstract: A method for synchronizing a logical clock in a device comprising a physical clock, an input port, and an output port, the device further comprising a logical clock and a time compensation clock sharing the physical clock, the time compensation clock making it possible to determine a residence time, comprising obtaining a theoretical residence time, during a pre-synchronization phase according to which the logical clock is not synchronized, adding a value representative of the obtained theoretical residence time to a residence time value stored in a synchronization message to be forwarded, during a synchronization phase according to which the logical clock is synchronized, obtaining a residence time and adding a value representative of the obtained residence time to a residence time value stored in a synchronization message to be forwarded, and synchronizing the logical clock as a function of a residence time value stored in a received synchronization message.Type: GrantFiled: December 4, 2017Date of Patent: April 26, 2022Assignee: Canon Kabushiki KaishaInventors: Romain Guignard, Yacine El Kolli, Lionel Le Scolan, Arnaud Closset
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Publication number: 20210288736Abstract: At least one embodiment of a method for synchronizing a logical clock in a device comprising a physical clock, an input port, and an output port, the device further comprising a logical clock and a time compensation clock sharing the physical clock, the time compensation clock making it possible to determine a residence time, comprises: obtaining a theoretical residence time; during a pre-synchronization phase according to which the logical clock is not synchronized, adding a value representative of the obtained theoretical residence time to a residence time value stored in a synchronization message to be forwarded, during a synchronization phase according to which the logical clock is synchronized, obtaining a residence time and adding a value representative of the obtained residence time to a residence time value stored in a synchronization message to be forwarded, and synchronizing the logical clock as a function of a residence time value stored in a received synchronization message.Type: ApplicationFiled: December 4, 2017Publication date: September 16, 2021Inventors: Romain GUIGNARD, Yacine EL KOLLI, Lionel LE SCOLAN, Arnaud CLOSSET
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Patent number: 11099599Abstract: A communication device comprising at least one communication port called reception port and another communication port called forward port, each communication port being associated with a respective clock, the communication device being further configured for computing an offset between the respective clocks associated with the reception and forward ports, and synchronizing the respective clocks based on the computed offset.Type: GrantFiled: October 18, 2018Date of Patent: August 24, 2021Assignee: Canon Kabushiki KaishaInventors: Yacine El Kolli, Romain Guignard, Arnaud Closset, Lionel Le Scolan
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Publication number: 20190138047Abstract: A communication device comprising at least one communication port called reception port and another communication port called forward port, each communication port being associated with a respective clock, the communication device being further configured for computing an offset between the respective clocks associated with the reception and forward ports, and synchronizing the respective clocks based on the computed offset.Type: ApplicationFiled: October 18, 2018Publication date: May 9, 2019Inventors: Yacine EL KOLLI, Romain GUIGNARD, Arnaud CLOSSET, Lionel LE SCOLAN
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Patent number: 9432770Abstract: A method for localizing one or more sound sources of interest placed within a sound environment comprising ambient noise by estimating the directions of arrival (?,?) of said one or more sound source of interest comprising the steps of: calculating the environment steered response power (SRP (t, f, ?, ?)) corresponding to the steered response power of said one or more source of interest for one or more orientations using said environment audio signals; obtaining, using said array of at least two microphones, noise audio signals corresponding to the audio signals emanating from said sound environment under particular reference conditions; calculating a noise steered response power (SRPn (t, f, ?, ?)) corresponding to the steered response power of the ambient noise for said one or more orientations using said noise audio signals; and estimating the direction of arrival of said sound source of interest.Type: GrantFiled: August 25, 2014Date of Patent: August 30, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Eric Nguyen, Lionel Le Scolan
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Publication number: 20150055797Abstract: A method for localizing one or more sound sources of interest placed within a sound environment comprising ambient noise by estimating the directions of arrival (?,?) of said one or more sound source of interest comprising the steps of: calculating the environment steered response power (SRP (t, f, ?, ?)) corresponding to the steered response power of said one or more source of interest for one or more orientations using said environment audio signals; obtaining, using said array of at least two microphones, noise audio signals corresponding to the audio signals emanating from said sound environment under particular reference conditions; calculating a noise steered response power (SRPn (t, f, ?, ?)) corresponding to the steered response power of the ambient noise for said one or more orientations using said noise audio signals; and estimating the direction of arrival of said sound source of interest.Type: ApplicationFiled: August 25, 2014Publication date: February 26, 2015Inventors: ERIC NGUYEN, LIONEL LE SCOLAN
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Patent number: 7424070Abstract: In order to evaluate the noise related to data issuing from a turbo-encoder, estimates of the noise related to its systematic output, to the data issuing from its first elementary encoder, and to the data issuing from its second elementary encoder are determined. At least two of the estimates of the noise related to the systematic output, to the data issuing from the first encoder, and to the data issuing from the second encoder, are added. The results of these additions are divided by the number of augends added, and then inverted, so as to obtain a noise factor, and the noise factor is multiplied with the data issuing from at least one of the first encoder, second encoder, and systematic output.Type: GrantFiled: April 28, 2005Date of Patent: September 9, 2008Assignee: Canon Kabushiki KaishaInventors: Philippe A. Le Bars, Frederique Ehrmann, Francois Thoumy, Lionel Le Scolan, Samuel Rousselin
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Patent number: 7260653Abstract: 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: GrantFiled: June 17, 2005Date of Patent: August 21, 2007Assignee: Canon Kabushiki KaishaInventors: Lionel Le Scolan, Mohamed Braneci, Patrice Nezou, Pascal Rousseau
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Patent number: 7058729Abstract: 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: GrantFiled: May 9, 2000Date of Patent: June 6, 2006Assignee: Canon Kabushiki KaishaInventors: Lionel Le Scolan, Mohamed Braneci, Patrice Nezou, Pascal Rousseau
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Patent number: 7039120Abstract: The method of transmitting data in the form of symbols sent over an electromagnetic channel is characterized in that a measurement of significance is attributed to each group of data to be transmitted, in that the transmission reliability of the carriers is estimated dynamically, and in that the most significant data are sent over the most reliable carriers at each instant, the other data being sent over the carriers of decreasing reliability, in decreasing order of significance of the data.Type: GrantFiled: November 30, 1999Date of Patent: May 2, 2006Assignee: Canon Kabushiki KaishaInventors: François Thoumy, Philippe Le Bars, Samuel Rousselin, Lionel Le Scolan, Frédérique Ehrmann
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Publication number: 20050237928Abstract: 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: ApplicationFiled: June 17, 2005Publication date: October 27, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Lionel Le Scolan, Mohamed Braneci, Patrice Nezou, Pascal Rousseau
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Patent number: 6954471Abstract: 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: GrantFiled: June 20, 2000Date of Patent: October 11, 2005Assignee: Canon Kabushiki KaishaInventors: Samuel Rousselin, Philippe Le Bars, Lionel Le Scolan, François Thoumy, Frédérique Ehrmann, Mohamed Braneci, Patrice Nezou, Pascal Rousseau
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Patent number: 6898251Abstract: In order to evaluate the noise related to data issuing from a turbo-encoder, estimates of the noise related to its systematic output, to the data issuing from its first elementary encoder, and to the data issuing from its second elementary encoder are determined. At least two of the estimates of the noise related to the systematic output, to the data issuing from the first encoder, and to the data issuing from the second encoder, are added. The results of these additions are divided by the number of augends added, and then inverted, so as to obtain a noise factor, and the noise factor is multiplied with the data issuing from at least one of the first encoder, second encoder, and systematic output.Type: GrantFiled: March 14, 2001Date of Patent: May 24, 2005Assignee: Canon Kabushiki KaishaInventors: Philippe Le Bars, Frederique Ehrmann, Francois Thoumy, Lionel Le Scolan, Samuel Rousselin
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Publication number: 20020041640Abstract: In order to evaluate the noise related to data issuing from a turbo encoder: estimates of the noise related to its systematic output, to the data issuing from its first elementary encoder and to the data issuing from its second elementary encoder are determined (70); at least two of the estimates of the noise related to the systematic output, to the data issuing from the first encoder, and to the data issuing from the second encoder, are added (72); the results of these additions are divided (74) by the number of augends added, and then inverted (76), so as to obtain a noise factor; and the noise factor is multiplied with the data issuing from at least one of the first encoder, second encoder and systematic output.Type: ApplicationFiled: March 14, 2001Publication date: April 11, 2002Inventors: Philippe Le Bars, Frederique Ehrmann, Francois Thoumy, Lionel Le Scolan, Samuel Rousselin