Patents by Inventor Julien D. Pons
Julien D. Pons 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: 20160277153Abstract: Embodiments disclosed herein include systems and methods of packet retransmission. More specifically, at least one nonlimiting example of a method includes receiving data from above a y (gamma) interface, the data being identified as protected or not protected data; and storing the protected fragment in a retransmission queue included in a transport protocol specific transmission convergence layer.Type: ApplicationFiled: May 27, 2016Publication date: September 22, 2016Inventors: Massimo Sorbara, Julien D. Pons, Ravindra M. Lambi
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Patent number: 8677226Abstract: A method implemented in a digital subscriber line (DSL) system is described for minimizing a misdetection probability at a far-end coded message receiver during transmission of a coded message. The method comprises jointly determining, at the far-end coded message receiver, a P matrix and a modulation scheme. The method further comprises encoding a message into a coded message with a systematic linear block code, the systematic linear block code having a generator matrix [I P], where I represents a linear block code component identity matrix and P represents the determined P matrix. The method also comprises modulating the encoded message to one or more tones forming a discrete multi-tone (DMT) symbol according to the determined modulation scheme.Type: GrantFiled: March 22, 2010Date of Patent: March 18, 2014Assignee: Ikanos Communications, Inc.Inventors: Julien D. Pons, Laurent Francis Alloin, Massimo Sorbara, Vinod Venkatesan
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Patent number: 8555149Abstract: Systems and methods for protecting DSL systems against impulse noise are provided. Disclosed herein are example embodiments of a retransmission technique located above the gamma interface (i.e., in the network processing layer). Such a retransmission technique can be combined with standard RS coding with standard erasure-decoding & triangular interleaving at the PMS-TC layer. Example embodiments of the technique involve using the RS code to protect against REIN noise, and using ?-layer retransmission for protecting against error events not corrected by the RS code, e.g. a SHINE noise in the presence of REIN. Both techniques are used jointly in the case of combined REIN and SHINE noise.Type: GrantFiled: March 26, 2009Date of Patent: October 8, 2013Assignee: Ikanos Communications, Inc.Inventors: Julien D. Pons, Ravindra M Lambi, Patrick Duvaut, Massimo Sorbara
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Patent number: 8498326Abstract: A multi-tone transceiver with a components forming a transmit path and a receive path configured to couple via a subscriber line to an opposing multi-tone transceiver for frequency division multiplexed multi-tone modulated communications therewith is disclosed. A noise margin channel identifier is configured to identify within a received tone set, discrete tones each associated with a corresponding one of at least two channels differing from one another in a relative noise margin of associated tones. A Viterbi decoder is responsive to the channel identification provided by the noise margin channel identifier to discretely decode each of the at least two channels; thereby improving the fidelity of the error correction provided by the Viterbi decoder by discretely processing the identified channels within the received set of tones.Type: GrantFiled: July 23, 2010Date of Patent: July 30, 2013Assignee: Ikanos Communications, Inc.Inventors: Siva Simanapalli, Julien D. Pons, Arnaud Charton, Karl Yick, Qasem Aldrubi, Hossein Dehghan-Fard
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Patent number: 8463955Abstract: Included are embodiments for retransmission in a digital subscriber line environment. At least one embodiment of a method includes framing data into transport frames, each transport frame carrying payload data that is viewed differently according to the computing layer in which it is transported; transporting the transport frames over a first computing layer, the payload data of each transport frame corresponding to an integer number Q of elementary cells of the first computing layer, an integer number of header bytes containing information specific to the transport frame, and an integer number of padding bytes; and transporting the transport frames over a second computing layer, the payload data content of each transport frame corresponding to payload data of an integer number M of elementary cells of the second computing layer.Type: GrantFiled: December 23, 2009Date of Patent: June 11, 2013Assignee: Ikanos Communications, Inc.Inventors: Julien D. Pons, Massimo Sorbara, Laurent Francis Alloin, Ravindra M. Lambi
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Patent number: 8413000Abstract: Embodiments disclosed herein are configured for retransmission above the gamma (?) interface. At least one embodiment of a method includes receiving data from an Ethernet layer, the data being identified as eligible for retransmission or not eligible for retransmission; in response to a determination that the data is eligible for retransmission, storing a copy of at least a portion of the data in a retransmission queue; and transmitting the data across a gamma (?) interface to a packet transfer mode transmission convergence layer.Type: GrantFiled: November 18, 2009Date of Patent: April 2, 2013Assignee: Ikanos Communications, Inc.Inventors: Massimo Sorbara, Ravindra M. Lambi, Julien D. Pons
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Patent number: 8391378Abstract: Included are embodiments of method for method for computing metrics. At least one embodiment includes searching a MIMO detection tree, the detection tree configuration being formed by a plurality of nodes and a plurality of leaves connected via a plurality of branches, the computational complexity associated with computing a node metric decreases with the node depth in the tree configuration and providing an estimate on a transmitted signal.Type: GrantFiled: October 15, 2008Date of Patent: March 5, 2013Assignee: Ikanos Communications, Inc.Inventors: Patrick Duvaut, Julien D Pons
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Patent number: 8261149Abstract: Impulse noise from nearby or intense electrical sources can disrupt communications over digital subscriber lines. There are many methods to deal with errors produced by impulse noise sources. Forward error correction (FEC) codes such as Reed Solomon coding along with scrambling and interleaving are used to correct small errors. However, for larger errors, retransmission is favored. Retransmission can be applied at the Discrete Multi-tone symbol level thus eliminating the need to insert sequence identification into data transmission units, furthermore retransmission can also be employed to exploit the error correcting capabilities of the FEC codes. Finally, an impulse noise protection system can exploit impulse noise statistics to configure the redundancy in the FEC codes and to enable the use of blanking. Exemplary embodiments of systems described can cooperatively use impulse noise statistics to utilize retransmission, FEC and blanking to mitigate the effects of impulse noise.Type: GrantFiled: June 30, 2011Date of Patent: September 4, 2012Assignee: Ikanos Communications, Inc.Inventors: Julien D. Pons, Patrick Duvaut, Massimo Sorbara, Yue-Peng Zheng
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Patent number: 8112687Abstract: Various embodiments for mitigating impulse noise are disclosed that cooperatively use impulse noise statistics to utilize retransmission, forward error correction (FEC), and blanking to mitigate the effects of a wide variety of impulse noise sources.Type: GrantFiled: January 5, 2009Date of Patent: February 7, 2012Assignee: Ikanos Communications, Inc.Inventors: Julien D. Pons, Patrick Duvaut, Massimo Sobara, Yue-Peng Zheng
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Patent number: 8102946Abstract: In accordance with some embodiments, a communication system is described that comprises a soft-output detector configured to receive a transmit signal and output reliability information regarding the received signal. In accordance with such embodiments, the detector comprises a symbol combiner configured to operate in both a repetition mode and a non-repetition mode, wherein repetition mode comprises receiving a plurality of signals for the transmit signal.Type: GrantFiled: July 7, 2008Date of Patent: January 24, 2012Assignee: Ikanos Communications, Inc.Inventors: Julien D. Pons, Patrick Duvaut
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Publication number: 20110264978Abstract: Impulse noise from nearby or intense electrical sources can disrupt communications over digital subscriber lines. There are many methods to deal with errors produced by impulse noise sources. Forward error correction (FEC) codes such as Reed Solomon coding along with scrambling and interleaving are used to correct small errors. However, for larger errors, retransmission is favored. Retransmission can be applied at the Discrete Multi-tone symbol level thus eliminating the need to insert sequence identification into data transmission units, furthermore retransmission can also be employed to exploit the error correcting capabilities of the FEC codes. Finally, an impulse noise protection system can exploit impulse noise statistics to configure the redundancy in the FEC codes and to enable the use of blanking. Exemplary embodiments of systems described can cooperatively use impulse noise statistics to utilize retransmission, FEC and blanking to mitigate the effects of impulse noise.Type: ApplicationFiled: June 30, 2011Publication date: October 27, 2011Applicant: Ikanos Communications, Inc.Inventors: Julien D. Pons, Patrick Duvaut, Massimo Sobara, Yue-Peng Zheng
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Patent number: 7953143Abstract: A system is described that comprises a frequency domain impulse noise detector configured to monitor received discrete multi-tone (DMT) symbols for impulse noise, a Reed Solomon (RS) decoder with erasure and erasure correction capability for performing error correction on received DMT symbols, and an optimization module configured to adjust parameters associated with the impulse noise detector, the optimization module configured to adjust values for ?pivot, ?c, and a ratio (m/M), wherein M is a number of monitored tones, m is a number of slicer error samples that must exceed a decision threshold for a symbol to be flagged as corrupted, and ?pivot and ?c are values associated with a monotonic function of a ratio of a statistical parameter of disruptive noise to a statistical parameter of nominal noise.Type: GrantFiled: February 22, 2008Date of Patent: May 31, 2011Assignee: Ikanos Communications, Inc.Inventors: Amitkumar Mahadevan, Patrick Duvaut, Julien D. Pons
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Publication number: 20100281349Abstract: A method implemented in a digital subscriber line (DSL) system is described for minimizing a misdetection probability at a far-end coded message receiver during transmission of a coded message. The method comprises jointly determining, at the far-end coded message receiver, a P matrix and a modulation scheme. The method further comprises encoding a message into a coded message with a systematic linear block code, the systematic linear block code having a generator matrix [I P], where I represents a linear block code component identity matrix and P represents the determined P matrix. The method also comprises modulating the encoded message to one or more tones forming a discrete multi-tone (DMT) symbol according to the determined modulation scheme.Type: ApplicationFiled: March 22, 2010Publication date: November 4, 2010Applicant: IKANOS COMMUNICATIONS, INC.Inventors: Julien D. Pons, Laurent Francis Alloin, Massimo Sorbara, Vinod Venkatesan
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Publication number: 20100185791Abstract: Included are embodiments for retransmission in a digital subscriber line environment. At least one embodiment of a method includes framing data into transport frames, each transport frame carrying payload data that is viewed differently according to the computing layer in which it is transported; transporting the transport frames over a first computing layer, the payload data of each transport frame corresponding to an integer number Q of elementary cells of the first computing layer, an integer number of header bytes containing information specific to the transport frame, and an integer number of padding bytes; and transporting the transport frames over a second computing layer, the payload data content of each transport frame corresponding to payload data of an integer number M of elementary cells of the second computing layer.Type: ApplicationFiled: December 23, 2009Publication date: July 22, 2010Applicant: IKANOS COMMUNICATIONS, INC.Inventors: Julien D. Pons, Massimo Sorbara, Laurent Francis Alloin, Ravindra M. Lambi
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Publication number: 20100138714Abstract: Embodiments disclosed herein are configured for retransmission above the gamma (?) interface. At least one embodiment of a method includes receiving data from an Ethernet layer, the data being identified as eligible for retransmission or not eligible for retransmission; in response to a determination that the data is eligible for retransmission, storing a copy of at least a portion of the data in a retransmission queue; and transmitting the data across a gamma (?) interface to a packet transfer mode transmission convergence layer.Type: ApplicationFiled: November 18, 2009Publication date: June 3, 2010Applicant: IKANOS COMMUNICATIONS, INC.Inventors: Massimo Sorbara, Ravindra M. Lambi, Julien D. Pons
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Publication number: 20100088569Abstract: Embodiments disclosed herein include systems and methods of packet retransmission. More specifically, at least one nonlimiting example of a method includes receiving data from above a ? (gamma) interface, the data being identified as protected or not protected data; and storing the protected fragment in a retransmission queue included in a transport protocol specific transmission convergence layer.Type: ApplicationFiled: October 5, 2009Publication date: April 8, 2010Applicant: IKANOS COMMUNICATIONS, INC.Inventors: Massimo Sorbara, Julien D. Pons, Ravindra M. Lambi
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Publication number: 20100002808Abstract: In accordance with some embodiments, a communication system is described that comprises a soft-output detector configured to receive a transmit signal and output reliability information regarding the received signal. In accordance with such embodiments, the detector comprises a symbol combiner configured to operate in both a repetition mode and a non-repetition mode, wherein repetition mode comprises receiving a plurality of signals for the transmit signal.Type: ApplicationFiled: July 7, 2008Publication date: January 7, 2010Applicant: Conexant Systems, Inc.Inventors: Julien D. Pons, Patrick Duvaut
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Publication number: 20090249133Abstract: Systems and methods for protecting DSL systems against impulse noise are provided. Disclosed herein are example embodiments of a retransmission technique located above the gamma interface (i.e., in the network processing layer). Such a retransmission technique can be combined with standard RS coding with standard erasure-decoding & triangular interleaving at the PMS-TC layer. Example embodiments of the technique involve using the RS code to protect against REIN noise, and using ?-layer retransmission for protecting against error events not corrected by the RS code, e.g. a SHINE noise in the presence of REIN. Both techniques are used jointly in the case of combined REIN and SHINE noise.Type: ApplicationFiled: March 26, 2009Publication date: October 1, 2009Applicant: CONEXANT SYSTEMS, INC.Inventors: Julien D. Pons, Ravindra M. Lambi, Patrick Duvaut, Massimo Sorbara
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Publication number: 20090232232Abstract: Included are embodiments of method for method for computing metrics. At least one embodiment includes searching a MIMO detection tree, the detection tree configuration being formed by a plurality of nodes and a plurality of leaves connected via a plurality of branches, the computational complexity associated with computing a node metric decreases with the node depth in the tree configuration and providing an estimate on a transmitted signal.Type: ApplicationFiled: October 15, 2008Publication date: September 17, 2009Applicant: CONEXANT SYSTEMS, INC.Inventors: Patrick Duvaut, Julien D. Pons
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Publication number: 20090216489Abstract: Systems and methods for deriving parameters for frequency domain impulse noise detectors are described. At least one embodiment is a method for deriving a set of parameters associated with a frequency domain impulse noise detector. In accordance with such embodiments, the method comprises setting values for ?pivot and ?c, wherein ?pivot and ?c are values associated with a monotonic function of a ratio of a statistical parameter of disruptive noise to a statistical parameter of nominal noise. The method further comprises selecting a fixed ratio (m/M), wherein M is a number of monitored tones, and wherein m is a number of slicer error samples that must exceed a decision threshold for a symbol to be flagged as corrupted.Type: ApplicationFiled: February 22, 2008Publication date: August 27, 2009Applicant: CONEXANT SYSTEMS, INC.Inventors: Amitkumar Mahadevan, Patrick Duvaut, Julien D. Pons