Patents by Inventor Laurent A. PIERRUGUES
Laurent A. PIERRUGUES 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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Publication number: 20240014871Abstract: Techniques for enhanced wireless sensing or ranging are provided. First and second channel state information (CSI) data, for a first and second link of a plurality of links in a multi-link operation (MLO) system, is collected. A set of channel parameters is estimated, based on the second CSI data, using a channel propagation model. First predicted CSI data for the first link is generated based on the estimated set of channel parameters. The first CSI data is calibrated based on the first predicted CSI data, comprising determining at least one of an amplitude difference or a phase difference between the first CSI data and the first predicted CSI data. Aggregated CSI data is generated based on the calibrated first CSI data and the second CSI data, and at least one of wireless sensing or wireless ranging is performed based on the aggregated CSI data.Type: ApplicationFiled: December 8, 2022Publication date: January 11, 2024Inventors: Ardalan ALIZADEH, Peiman AMINI, Matthew A. SILVERMAN, Laurent A. PIERRUGUES
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Patent number: 9660695Abstract: The present invention relates to methods and apparatuses for sensing noise sources in a wireline communications environment such as a customer premises environment in a DSL system. In embodiments, the invention includes an additional sensor that is connected to power mains in a DSL customer premises environment either to characterize, at their source, noises coupling into the DSL lines, and/or to mitigate their impact into the DSL lines. One objective is associated with diagnostics that help to better characterize the noise signals themselves and derive correlation of signals sensed from the power mains and their possible projection onto the DSL line. Another objective makes use of these power line sensor signals to mitigate or to eliminate power line noises that make their way onto the DSL line. Example embodiments further include and exploit signals from additional secondary sensors such as secondary common mode, differential mode and phantom mode sensors.Type: GrantFiled: June 28, 2016Date of Patent: May 23, 2017Assignee: Ikanos Communication, Inc.Inventors: Laurent Francis Alloin, William Edward Keasler, Jr., Laurent Pierrugues, Arnold Muralt
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Publication number: 20160365999Abstract: The present invention generally relates to an impulse noise canceller for DSL systems. According to certain aspects, embodiments of the invention provide a dual sensor receiver to deal with the impulse noise effectively. The second sensor can be incorporated by either a common mode or unused differential port. Alternatively a power line sensor can also act as a sensor. According to certain additional aspects, embodiments of the invention provide various alternative implementations of an impulse noise canceller within a DSL receiver. According to still further aspects, embodiments of the invention provide methods for selectively training an impulse noise canceller in the various implementations.Type: ApplicationFiled: July 11, 2016Publication date: December 15, 2016Inventors: Pravesh Biyani, S. M. Zafaruddin, Laurent Pierrugues, Laurent Francis Alloin
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Publication number: 20160330062Abstract: The present invention generally relates to a method and apparatus for effectively detecting and characterizing noise and other events affecting a communications system such as digital subscriber lines (DSL). According to certain aspects, the invention includes a noise analysis engine that is embedded in customer premises equipment that classifies noise sources according to their specific characteristics and tracks each noise source in a dynamic manner, in such a way as to provide visibility to the changing noise environment within the customer premises and/or report this environment to a remote entity.Type: ApplicationFiled: May 31, 2016Publication date: November 10, 2016Inventors: Laurent F. Alloin, Laurent Pierrugues, Ming Gu
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Publication number: 20160308580Abstract: The present invention relates to methods and apparatuses for sensing noise sources in a wireline communications environment such as a customer premises environment in a DSL system. In embodiments, the invention includes an additional sensor that is connected to power mains in a DSL customer premises environment either to characterize, at their source, noises coupling into the DSL lines, and/or to mitigate their impact into the DSL lines. One objective is associated with diagnostics that help to better characterize the noise signals themselves and derive correlation of signals sensed from the power mains and their possible projection onto the DSL line. Another objective makes use of these power line sensor signals to mitigate or to eliminate power line noises that make their way onto the DSL line. Example embodiments further include and exploit signals from additional secondary sensors such as secondary common mode, differential mode and phantom mode sensors.Type: ApplicationFiled: June 28, 2016Publication date: October 20, 2016Inventors: Laurent Francis Alloin, William Edward Keasler, JR., Laurent Pierrugues, Arnold Muralt
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Patent number: 9413424Abstract: The present invention relates to methods and apparatuses for sensing noise sources in a wireline communications environment such as a customer premises environment in a DSL system. In embodiments, the invention includes an additional sensor that is connected to power mains in a DSL customer premises environment either to characterize, at their source, noises coupling into the DSL lines, and/or to mitigate their impact into the DSL lines. One objective is associated with diagnostics that help to better characterize the noise signals themselves and derive correlation of signals sensed from the power mains and their possible projection onto the DSL line. Another objective makes use of these power line sensor signals to mitigate or to eliminate power line noises that make their way onto the DSL line. Example embodiments further include and exploit signals from additional secondary sensors such as secondary common mode, differential mode and phantom mode sensors.Type: GrantFiled: October 19, 2015Date of Patent: August 9, 2016Assignee: Ikanos Communications, Inc.Inventors: Laurent Francis Alloin, William Edward Keasler, Jr., Laurent Pierrugues, Arnold Muralt
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Patent number: 9385780Abstract: The present invention generally relates to a method and apparatus for effectively detecting and characterizing noise and other events affecting a communications system such as digital subscriber lines (DSL). According to certain aspects, the invention includes a noise analysis engine that is embedded in customer premises equipment that classifies noise sources according to their specific characteristics and tracks each noise source in a dynamic manner, in such a way as to provide visibility to the changing noise environment within the customer premises and/or report this environment to a remote entity.Type: GrantFiled: October 15, 2013Date of Patent: July 5, 2016Assignee: Ikanos Communications, Inc.Inventors: Laurent F. Alloin, Laurent Pierrugues, Ming Gu
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Publication number: 20160043772Abstract: The present invention relates to methods and apparatuses for sensing noise sources in a wireline communications environment such as a customer premises environment in a DSL system. In embodiments, the invention includes an additional sensor that is connected to power mains in a DSL customer premises environment either to characterize, at their source, noises coupling into the DSL lines, and/or to mitigate their impact into the DSL lines. One objective is associated with diagnostics that help to better characterize the noise signals themselves and derive correlation of signals sensed from the power mains and their possible projection onto the DSL line. Another objective makes use of these power line sensor signals to mitigate or to eliminate power line noises that make their way onto the DSL line. Example embodiments further include and exploit signals from additional secondary sensors such as secondary common mode, differential mode and phantom mode sensors.Type: ApplicationFiled: October 19, 2015Publication date: February 11, 2016Inventors: Laurent Francis Alloin, William Edward Keasler, JR., Laurent Pierrugues, Arnold Muralt
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Patent number: 9184774Abstract: In accordance with one embodiment, a method is implemented in a vectored system for improving a signal-to-noise ratio (SNR) of a far end transmitted signal on a victim line in the system. The method comprises mitigating, by the vectored system, self-induced far-end crosstalk (self-FEXT) on the victim line based on self-FEXT mitigation coefficients and receiving, by a second sensor, information relating to at least one of: self-FEXT of the vectored system, external noise, and the far end transmitted signal. The method further comprises learning, at the second sensor, coefficients relating to self-FEXT coupling into the second sensor and removing self-FEXT from the second sensor based on the learned coefficients. Upon removal of self-FEXT from the second sensor, a linear combiner configured to combine information relating to the victim line and the second line is learned.Type: GrantFiled: November 5, 2013Date of Patent: November 10, 2015Assignee: Ikanos Communications, Inc.Inventors: Laurent Pierrugues, Laurent Francis Alloin, Amitkumar Mahadevan
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Patent number: 9166651Abstract: The present invention relates to methods and apparatuses for sensing noise sources in a wireline communications environment such as a customer premises environment in a DSL system. In embodiments, the invention includes an additional sensor that is connected to power mains in a DSL customer premises environment either to characterize, at their source, noises coupling into the DSL lines, and/or to mitigate their impact into the DSL lines. One objective is associated with diagnostics that help to better characterize the noise signals themselves and derive correlation of signals sensed from the power mains and their possible projection onto the DSL line. Another objective makes use of these power line sensor signals to mitigate or to eliminate power line noises that make their way onto the DSL line. Example embodiments further include and exploit signals from additional secondary sensors such as secondary common mode, differential mode and phantom mode sensors.Type: GrantFiled: October 17, 2013Date of Patent: October 20, 2015Assignee: Ikanos Communications, Inc.Inventors: Laurent Francis Alloin, William Edward Keasler, Jr., Laurent Pierrugues, Arnold Muralt
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Patent number: 9042498Abstract: In general, the present invention provides methods and apparatuses for exploiting the extra degree of freedom provided by the sensing of the CM signal along with the DM signal at the receiver end of a wireline communication system. According to certain aspects, this extra degree of freedom can be used to cancel alien noises at the receiver in both upstream downstream directions. According to further aspects, a CM channel can be potentially used to exploit the diversity created in the CM channel along with the regular DM channel. This acts as the motivation for employing a diversity receiver scheme at the receiver, especially in downstream communications received at a Customer Premises.Type: GrantFiled: October 18, 2013Date of Patent: May 26, 2015Assignee: IKANOS COMMUNICATIONS, INC.Inventors: Laurent Francis Alloin, Pravesh Biyani, Laurent Pierrugues, S. M. Zafaruddin, Chapala Vinay Kumar
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Patent number: 8923487Abstract: Derivations of new PHY layer diagnostics primitives are based on the normalized error samples collected through G.993.5. The processing uses the ERB and L2 Ethernet packet encapsulation of these ERB data in order to abstract the processing from the PHY layer device dependency, as well as to allow a local and remote processing of the primitives for diagnostics purposes.Type: GrantFiled: September 24, 2012Date of Patent: December 30, 2014Assignee: Ikanos Communications, Inc.Inventors: Laurent F. Alloin, Ming Gu, Laurent Pierrugues
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Patent number: 8891638Abstract: A system, method, and a computer readable medium having instructions thereupon for synchronized multi-user multi-carrier communications are provided. For example, a synchronized multi-user multi-carrier communication system includes a transmitter, a receiver communicatively coupled to the transmitter via a plurality of communication channels associated with multiple users, and a computing device, coupled to at least one of the transmitter and the receiver, comprising a memory device in communication with one or more processors. The one or more processors are configured to obtain noise samples for the plurality of communication channels, determine a coupling between carriers on the plurality of communication channels, determine a noise model for a carrier based upon the noise samples and the determined coupling, and store the noise model in the memory device.Type: GrantFiled: February 8, 2012Date of Patent: November 18, 2014Assignee: Ikanos Communications, Inc.Inventors: Julien Pons, Laurent Alloin, Laurent Pierrugues
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Publication number: 20140177694Abstract: The present invention relates to methods and apparatuses for sensing noise sources in a wireline communications environment such as a customer premises environment in a DSL system. In embodiments, the invention includes an additional sensor that is connected to power mains in a DSL customer premises environment either to characterize, at their source, noises coupling into the DSL lines, and/or to mitigate their impact into the DSL lines. One objective is associated with diagnostics that help to better characterize the noise signals themselves and derive correlation of signals sensed from the power mains and their possible projection onto the DSL line. Another objective makes use of these power line sensor signals to mitigate or to eliminate power line noises that make their way onto the DSL line. Example embodiments further include and exploit signals from additional secondary sensors such as secondary common mode, differential mode and phantom mode sensors.Type: ApplicationFiled: October 17, 2013Publication date: June 26, 2014Inventors: Laurent Francis ALLOIN, William Edward KEASLER, JR., Laurent PIERRUGUES, Arnold MURALT
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Publication number: 20140112381Abstract: In general, the present invention provides methods and apparatuses for exploiting the extra degree of freedom provided by the sensing of the CM signal along with the DM signal at the receiver end of a wireline communication system. According to certain aspects, this extra degree of freedom can be used to cancel alien noises at the receiver in both upstream downstream directions. According to further aspects, a CM channel can be potentially used to exploit the diversity created in the CM channel along with the regular DM channel. This acts as the motivation for employing a diversity receiver scheme at the receiver, especially in downstream communications received at a Customer Premises.Type: ApplicationFiled: October 18, 2013Publication date: April 24, 2014Inventors: Laurent Francis ALLOIN, Pravesh BIYANI, Laurent PIERRUGUES, S. M. ZAFARUDDIN, Chapala Vinay KUMAR
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Publication number: 20140112379Abstract: The present invention generally relates to an impulse noise canceller for DSL systems. According to certain aspects, embodiments of the invention provide a dual sensor receiver to deal with the impulse noise effectively. The second sensor can be incorporated by either a common mode or unused differential port. Alternatively a power line sensor can also act as a sensor. According to certain additional aspects, embodiments of the invention provide various alternative implementations of an impulse noise canceller within a DSL receiver. According to still further aspects, embodiments of the invention provide methods for selectively training an impulse noise canceller in the various implementations.Type: ApplicationFiled: October 18, 2013Publication date: April 24, 2014Inventors: Pravesh BIYANI, S. M. ZAFARUDDIN, Laurent PIERRUGUES, Laurent Francis ALLOIN
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Publication number: 20140105262Abstract: The present invention generally relates to a method and apparatus for effectively detecting and characterizing noise and other events affecting a communications system such as DSL. According to certain aspects, the invention includes a noise analysis engine that is embedded in customer premises equipment that classifies noise sources according to their specific characteristics and tracks each noise source in a dynamic manner, in such a way as to provide visibility to the changing noise environment within the customer premises and/or report this environment to a remote entity.Type: ApplicationFiled: October 15, 2013Publication date: April 17, 2014Inventors: Laurent F. ALLOIN, Laurent PIERRUGUES, Ming GU
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Patent number: 8687770Abstract: One embodiment is a method for performing 2-wire line imbalance measurements. The method comprises receiving a probe signal and based on the probe signal, determining one of more of: an estimated transverse conversion loss (TCL) coupling transfer function and an estimated transverse conversion transfer loss (TCTL) coupling transfer function.Type: GrantFiled: April 27, 2011Date of Patent: April 1, 2014Assignee: Ikanos Communications, Inc.Inventors: Laurent Francis Alloin, Arnold Muralt, Laurent Pierrugues
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Publication number: 20140056396Abstract: In accordance with one embodiment, a method is implemented in a vectored system for improving a signal-to-noise ratio (SNR) of a far end transmitted signal on a victim line in the system. The method comprises mitigating, by the vectored system, self-induced far-end crosstalk (self-FEXT) on the victim line based on self-FEXT mitigation coefficients and receiving, by a second sensor, information relating to at least one of: self-FEXT of the vectored system, external noise, and the far end transmitted signal. The method further comprises learning, at the second sensor, coefficients relating to self-FEXT coupling into the second sensor and removing self-FEXT from the second sensor based on the learned coefficients. Upon removal of self-FEXT from the second sensor, a linear combiner configured to combine information relating to the victim line and the second line is learned.Type: ApplicationFiled: November 5, 2013Publication date: February 27, 2014Applicant: IKANOS COMMUNICATIONS, INC.Inventors: Laurent PIERRUGUES, Laurent Francis ALLOIN, Amitkumar MAHADEVAN
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Patent number: 8576690Abstract: In accordance with one embodiment, a method is implemented in a vectored system for improving a signal-to-noise ratio (SNR) of a far end transmitted signal on a victim line in the system. The method comprises mitigating, by the vectored system, self-induced far-end crosstalk (self-FEXT) on the victim line based on self-FEXT mitigation coefficients and receiving, by a second sensor, information relating to at least one of: self-FEXT of the vectored system, external noise, and the far end transmitted signal. The method further comprises learning, at the second sensor, coefficients relating to self-FEXT coupling into the second sensor and removing self-FEXT from the second sensor based on the learned coefficients. Upon removal of self-FEXT from the second sensor, a linear combiner configured to combine information relating to the victim line and the second line is learned.Type: GrantFiled: March 18, 2011Date of Patent: November 5, 2013Assignee: Ikanos Communications, Inc.Inventors: Laurent Pierrugues, Laurent Francis Alloin, Amitkumar Mahadevan