Patents by Inventor James Harley
James Harley 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: 11957246Abstract: A chair with a transom, a seat support, a back portion, and a combined rock and recline mechanism. The combined rock and recline mechanism has front and rear rocking arrangements configured to enable the seat support and back portion to together rock generally forward and rearward from a neutral position relative to the transom, and a recline arrangement that is configured such that the seat support is in a first at-rest position relative to the back portion when the back portion is in an upright position, and such that reclining the back portion rearwardly from the upright position toward a reclined position moves the seat support upward and rearward from the first at-rest position.Type: GrantFiled: July 21, 2021Date of Patent: April 16, 2024Assignee: Formway Furniture LimitedInventors: Christopher Warren Bisman, James Clifford Prier, Fabian David Haarbeck, Paul Michael Wilkinson, Damon Gregory Burwell, Hugh Thomas Mccoshim, Leon Harley Craze, Rachael Jessica Hall
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Patent number: 11038549Abstract: A receiver is configured to generate a digital signal representative of data conveyed by a communication signal detected at the receiver, and to apply digital signal processing to the digital signal, thereby generating a processed signal. The receiver is further configured to determine a relative noise estimate for the processed signal, and to load an amount of digital noise into the digital signal processing based on a difference between the relative noise estimate and a target. As a result of the digital noise loading, improved stability of at least one control loop in the receiver may be achieved.Type: GrantFiled: June 8, 2020Date of Patent: June 15, 2021Assignee: CIENA CORPORATIONInventors: James Harley, Andrew D. Shiner
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Patent number: 10985900Abstract: Managing clock-data recovery for a modulated signal from a communication channel comprises: receiving the modulated signal and providing one or more analog signals, providing one or more digital input streams from samples of the analog signals, and processing the digital input streams to provide decoded digital data. The processing comprises: determining the decoded digital data based on information modulated over a plurality of frequency elements associated with the modulated signal, based at least in part on transforms of the digital input streams; a clock signal based on clock recovery from the digital input streams; and determining a clock phase error estimate associated with the determined clock signal based at least in part on a sum that includes different weights multiplied by different respective summands corresponding to different sets of frequency elements.Type: GrantFiled: March 3, 2020Date of Patent: April 20, 2021Assignee: Ciena CorporationInventors: Ahmad Abdo, Shahab Oveis Gharan, James Harley, Sadok Aouini, Timothy James Creasy, Naim Ben-Hamida
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Patent number: 10784980Abstract: A processor of an apparatus is configured to apply one or more control algorithms using estimated data to adjust the one or more control parameters of a section of an optical fiber network. The estimated data are derived from measurements of optical signals in the section and from knowledge of the section. The estimated data is a function of optical nonlinearity and of amplified spontaneous emission.Type: GrantFiled: October 4, 2019Date of Patent: September 22, 2020Assignee: Ciena CorporationInventors: Kim B. Roberts, James Harley, David Boertjes
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Patent number: 10715888Abstract: A method, a controller, and an optical network element are configured to perform steps of monitoring one or more optical links each formed by optical transceivers which are configured to provide variable capacity via a plurality of modulation formats; based on the monitoring, causing corresponding optical transceivers for the one or more optical links to operate at a first modulation format different from a second modulation format providing excess capacity; and mapping the excess capacity to bandwidth useable by one or more services managed by the one or more of the management system, the management plane, and the control plane.Type: GrantFiled: March 18, 2019Date of Patent: July 14, 2020Assignee: Ciena CorporationInventors: Gerard L. Swinkels, James Harley, David W. Boertjes, David Miedema, Michel Belanger, Paul A. Littlewood, John P. Mateosky, Michael Y. Frankel, Kevin S. Meagher
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Publication number: 20200036468Abstract: A processor of an apparatus is configured to apply one or more control algorithms using estimated data to adjust the one or more control parameters of a section of an optical fiber network. The estimated data are derived from measurements of optical signals in the section and from knowledge of the section. The estimated data is a function of optical nonlinearity and of amplified spontaneous emission.Type: ApplicationFiled: October 4, 2019Publication date: January 30, 2020Applicant: Ciena CorporationInventors: Kim B. Roberts, James Harley, David BOERTJES
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Patent number: 10439751Abstract: Multiple receivers are comprised in a flexible coherent transceiver of a multi-span optical fiber network. Each of the multiple receivers is operative to handle communications on a respective channel. The multiple receivers measure optical characteristics. For each of the multiple receivers, the optical characteristics include optical nonlinear interactions on the respective channel, the optical nonlinear interactions being at least partially dependent from one span to another span. An optical power of a signal on each of the multiple channels is adjusted as a function of the optical characteristics.Type: GrantFiled: October 27, 2017Date of Patent: October 8, 2019Assignee: Ciena CorporationInventors: Kim B. Roberts, James Harley, Qunbi Zhuge, Michael Andrew Reimer, Maurice O'Sullivan
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Publication number: 20190215586Abstract: A method, a controller, and an optical network element are configured to perform steps of monitoring one or more optical links each formed by optical transceivers which are configured to provide variable capacity via a plurality of modulation formats; based on the monitoring, causing corresponding optical transceivers for the one or more optical links to operate at a first modulation format different from a second modulation format providing excess capacity; and mapping the excess capacity to bandwidth useable by one or more services managed by the one or more of the management system, the management plane, and the control plane.Type: ApplicationFiled: March 18, 2019Publication date: July 11, 2019Inventors: Gerard L. Swinkels, James Harley, David W. Boertjes, David Miedema, Michel Belanger, Paul A. Littlewood, John P. Mateosky, Michael Y. Frankel, Kevin S. Meagher
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Patent number: 10257596Abstract: A method, a network element, and a network include determining excess margin relative to margin needed to ensure performance at a nominal guaranteed rate associated with a flexible optical modem configured to communicate over an optical link; causing the flexible optical modem to consume most or all of the excess margin, wherein the capacity increased above the nominally guaranteed rate includes excess capacity; and mapping the excess capacity to one or more logical interfaces for use by a management system, management plane, and/or control plane. The logical interfaces can advantageously be used by the management system, management plane, and/or control plane as one of restoration bandwidths or short-lived bandwidth-on-demand (BOD) connections, such as sub-network connections (SNCs) or label switched paths (LSPs).Type: GrantFiled: October 19, 2015Date of Patent: April 9, 2019Assignee: Ciena CorporationInventors: Gerard L. Swinkels, James Harley, David W. Boertjes, David Miedema, Michel Belanger, Paul A. Littlewood, John P. Mateosky, Michael Y. Frankel, Kevin S. Meagher
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Patent number: 10236981Abstract: A processor of an apparatus is configured to apply one or more control algorithms using estimated data to adjust the one or more control parameters of a section of an optical fiber network. The estimated data are derived from measurements of optical signals in the section and from knowledge of the section. The estimated data is a function of optical nonlinearity and of amplified spontaneous emission.Type: GrantFiled: July 13, 2017Date of Patent: March 19, 2019Assignee: Ciena CorporationInventors: James Harley, Kim B. Roberts, David Boertjes
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Publication number: 20180343058Abstract: Adjustment of one or more control parameters of a section of an optical fiber network involves taking measurements of optical signals in the section, deriving estimated data from the measurements and from knowledge of the section, where the estimated data is a function of optical nonlinearity and of amplified spontaneous emission, and applying one or more control algorithms using the estimated data to adjust the one or more control parameters.Type: ApplicationFiled: May 24, 2017Publication date: November 29, 2018Applicant: Ciena CorporationInventors: James Harley, Kim B. Roberts, David Boertjes
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Publication number: 20180343059Abstract: A processor of an apparatus is configured to apply one or more control algorithms using estimated data to adjust the one or more control parameters of a section of an optical fiber network. The estimated data are derived from measurements of optical signals in the section and from knowledge of the section. The estimated data is a function of optical nonlinearity and of amplified spontaneous emission.Type: ApplicationFiled: July 13, 2017Publication date: November 29, 2018Applicant: Ciena CorporationInventors: James Harley, Kim B. Roberts, David Boertjes
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Publication number: 20180343078Abstract: Multiple receivers are comprised in a flexible coherent transceiver of a multi-span optical fiber network. Each of the multiple receivers is operative to handle communications on a respective channel. The multiple receivers measure optical characteristics. For each of the multiple receivers, the optical characteristics include optical nonlinear interactions on the respective channel, the optical nonlinear interactions being at least partially dependent from one span to another span. An optical power of a signal on each of the multiple channels is adjusted as a function of the optical characteristics.Type: ApplicationFiled: October 27, 2017Publication date: November 29, 2018Applicant: Ciena CorporationInventors: Kim B. Roberts, James Harley, Qunbi Zhuge, Michael Andrew Reimer, Maurice O'Sullivan
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Patent number: 10142022Abstract: Adjustment of one or more control parameters of a section of an optical fiber network involves taking measurements of optical signals in the section, deriving estimated data from the measurements and from knowledge of the section, where the estimated data is a function of optical nonlinearity and of amplified spontaneous emission, and applying one or more control algorithms using the estimated data to adjust the one or more control parameters.Type: GrantFiled: May 24, 2017Date of Patent: November 27, 2018Assignee: Ciena CorporationInventors: James Harley, Kim B. Roberts, David Boertjes
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Patent number: 9859984Abstract: A transmitter comprises a complex mixer to generate a single I analog drive signal and a single Q analog drive signal, and a single multi-dimensional optical modulator configured to modulate an optical carrier light using the single I analog drive signal and the single Q analog drive signal to produce a modulated optical signal for transmission. Alternatively, a transmitter comprises a complex mixer to generate two I analog drive signals and two Q analog drive signals, and a single multi-dimensional multiple-electrode optical modulator configured to modulate an optical carrier light using the analog drive signals to produce a modulated optical signal for transmission. In both transmitters, the optical carrier light is produced by a single laser, and frequency components of the first data signal are located in a different portion of a spectrum of the modulated optical signal than frequency components of the second data signal.Type: GrantFiled: September 30, 2016Date of Patent: January 2, 2018Assignee: Ciena CorporationInventors: James Harley, Roger Carroll, Shahab Oveis Gharan, Kim B. Roberts
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Patent number: 9831987Abstract: Forward Error Correction technique: parity vectors are computed such that each parity vector spans multiple FEC frames; in a given FEC frame, a first set of syndrome bits are due to the parity vectors, and a second set of syndrome bits satisfy FEC equations that involve bits of the given FEC frame including the first set of syndrome bits; and the parity vectors are staggered with respect to any sequence in which the FEC frames are processed. Values of decoded bits of a first frame are deduced from known bits of a first parity vector having an effective length of one frame. For parity vectors having an effective length greater than one frame, a Log Likelihood Ratio of each unknown bit associated with the first frame is updated based on known and unknown bits of each parity vector. First frame is decoded using deduced bit values and updated LLR values.Type: GrantFiled: December 14, 2016Date of Patent: November 28, 2017Assignee: Ciena CorporationInventors: Shahab Oveis Gharan, James Harley, Kim B. Roberts
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Patent number: 9774394Abstract: Managing performance of an optical communications network may be facilitated by digital noise loading techniques. The digital noise loading techniques may include measuring a quality of a communication signal received at a coherent optical receiver, applying digital noise to the communication signal at the coherent optical receiver, and detecting a change in the quality of the communication signal at the coherent optical receiver in response to the application of the digital noise. Based on the change in the quality of the communication signal, an operating characteristic and/or a performance margin of the coherent optical receiver may be determined, prompting or facilitating further actions such as adjusting one or more operating parameters of the optical communications network and/or triggering an alert.Type: GrantFiled: November 19, 2015Date of Patent: September 26, 2017Assignee: Ciena CorporationInventors: James Harley, Jamie Gaudette, Lukas Jakober, Elizabeth Rivera Hartling, Bilal Riaz
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Publication number: 20170093528Abstract: Forward Error Correction technique: parity vectors are computed such that each parity vector spans multiple FEC frames; in a given FEC frame, a first set of syndrome bits are due to the parity vectors, and a second set of syndrome bits satisfy FEC equations that involve bits of the given FEC frame including the first set of syndrome bits; and the parity vectors are staggered with respect to any sequence in which the FEC frames are processed. Values of decoded bits of a first frame are deduced from known bits of a first parity vector having an effective length of one frame. For parity vectors having an effective length greater than one frame, a Log Likelihood Ratio of each unknown bit associated with the first frame is updated based on known and unknown bits of each parity vector. First frame is decoded using deduced bit values and updated LLR values.Type: ApplicationFiled: December 14, 2016Publication date: March 30, 2017Applicant: Ciena CorporationInventors: Shahab OVEIS GHARAN, James HARLEY, Kim B. ROBERTS
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Publication number: 20170019183Abstract: A transmitter comprises a complex mixer to generate a single I analog drive signal and a single Q analog drive signal, and a single multi-dimensional optical modulator configured to modulate an optical carrier light using the single I analog drive signal and the single Q analog drive signal to produce a modulated optical signal for transmission. Alternatively, a transmitter comprises a complex mixer to generate two I analog drive signals and two Q analog drive signals, and a single multi-dimensional multiple-electrode optical modulator configured to modulate an optical carrier light using the analog drive signals to produce a modulated optical signal for transmission. In both transmitters, the optical carrier light is produced by a single laser, and frequency components of the first data signal are located in a different portion of a spectrum of the modulated optical signal than frequency components of the second data signal.Type: ApplicationFiled: September 30, 2016Publication date: January 19, 2017Applicant: Ciena CorporationInventors: James HARLEY, Roger CARROLL, Shahab OVEIS GHARAN, Kim B. ROBERTS
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Patent number: 9537608Abstract: In a Forward Error Correction (FEC) technique, parity vectors are computed such that: each parity vector spans a set of frames; a subset of bits of each frame is associated with parity bits in each parity vector; and a location of parity bits associated with one frame in one parity vector is different from that of parity bits associated with the frame in another parity vector. Values of decoded bits of a first frame are deduced from known parity bits of a first parity vector having an effective length of one frame. For parity vectors having, an effective length greater than one frame, a Log Likelihood Ratio of each unknown parity bit associated with the first frame is updated based on known and unknown parity bits of each parity vector. The first frame is decoded using the deduced bit values and the updated LLR values.Type: GrantFiled: December 9, 2014Date of Patent: January 3, 2017Assignee: CIENA CORPORATIONInventors: Shahab Oveis Gharan, James Harley, Kim B. Roberts