903 patents
Utility
Printed circuit boards and methods for manufacturing thereof for RF connectivity between electro-optic phase modulator and Digital Signal Processor
18 Jan 24
A Printed Circuit Board (PCB) and methods for manufacturing the PCB board are provided.
Kaisheng Hu, Georges-Andre Chaudron, John David Wice
Filed: 4 Oct 23
Utility
Digital-to-analog converter (DAC) distortion pre-compensation
16 Jan 24
An apparatus comprises circuitry configured to generate a predicted error signal by applying to a digital signal a distortion model characterized by parameters configured to model circuit component mismatches in a digital-to-analog converter (DAC), circuitry configured to generate a pre-compensated digital signal using the digital signal and the predicted error signal, and circuitry configured to provide the pre-compensated digital signal to the DAC for conversion into an analog signal.
Ramin Babaee, Shahab Oveis Gharan, Martin Bouchard
Filed: 10 May 22
Utility
Virtual hallway conversations for remote collaboration
11 Jan 24
Systems and methods include monitoring users logging into a collaboration service for a corresponding online meeting; and assigning a plurality of the users to a virtual waiting room, separate from any corresponding online meeting, in advance of their corresponding online meeting to enable collaboration in the virtual waiting room.
Andrew D. Shiner
Filed: 26 Sep 23
Utility
Bundling capacity changes in channel holder based optical links
11 Jan 24
Systems and methods of capacity changes in an optical network having a plurality of optical sections include, responsive to a request for a capacity change for a plurality of channels, bundling the plurality of channels into different steps such that all of the plurality of channels are assigned to a step of the different steps; and causing implementation of the different steps across the plurality of optical sections, wherein each section performs the implementation and the bundling between corresponding Optical Add/Drop Multiplexer (OADM) nodes independently and asynchronously from one another.
Choudhury A. Al Sayeed, David C. Bownass, Yanping Xu
Filed: 25 Sep 23
Utility
Fast fiber transient locating systems and methods
9 Jan 24
Systems and methods include detecting a fast fiber transient on a span based on analyzing power data, wherein the power data is for any of optical wavelengths of traffic channels, optical service channel (OSC) wavelengths, and telemetry from a network element; and responsive to detecting the fast fiber transient, causing an optical time domain reflectometer (OTDR) trace on the span with a specific configuration based on the fast fiber transient.
Choudhury A. Al Sayeed, Lorenzo Lepore
Filed: 25 Feb 22
Utility
Micro-loop avoidance in networks
9 Jan 24
Systems and methods for micro-loop avoidance include detecting a remote link failure in a network and identifying an associated Point of Local Repair (PLR); determining destinations in the network that are impacted due to the remote link failure; and installing of a temporary tunnel to the PLR.
Sami Boutros, Sowmya Chandran, Ram Parameswaran, Arun Prakash, Muthurajah Sivabalan
Filed: 6 Sep 22
Utility
Ethernet services with segment routing with dataplane MAC learning
9 Jan 24
A node in a Segment Routing network includes circuitry configured to signal first service Segment Identifiers (SIDs), for one or more first Ethernet services configured at the node, to other nodes in the Segment Routing network, receive second service SIDs for one or more second Ethernet services configured at the other nodes in the Segment Routing network, and configure the second service SIDs for one or more second Ethernet services.
Sami Boutros, Siva Sivabalan, Himanshu Shah, Peng He
Filed: 6 Jul 22
Utility
Analyzing device configuration data to check for network compliance
4 Jan 24
Systems, methods, and Machine Learning (ML) techniques are provided for detecting changes to configuration information associated with network devices and determining if the changes are network compliant.
Thomas Triplet, Sudhan Puranik, Sachin Saswade
Filed: 20 Sep 22
Utility
OpenFEC error marking
4 Jan 24
Systems and methods include receiving (51) blocks of data that has been Forward Error Correction (FEC) encoded via Open Forward Error Correction (OFEC) adaptation; decoding (52) the blocks of data; processing (53) checksum data that is included in padding data required in the OFEC adaptation, wherein the padding data is distributed across N rows of payload data; and determining (54) a location of any errors in the payload data based on the processed checksum data.
Sebastien Gareau, Jeffery Thomas Nichols
Filed: 2 Nov 21
Utility
Fast convergence of E-Tree with a dual homed root node
2 Jan 24
A Provider Edge (PE) node includes a plurality of ports including an inter-chassis port to a second PE node, a port connected to a root node, and one or more ports connected to leaf nodes, wherein the plurality of ports are in an Ethernet Tree (E-Tree), and wherein the root node is dual-homed to the PE node and the second PE node; switching circuitry configured to switch traffic between the plurality of ports; and circuitry configured to designate the inter-chassis port as one of a leaf node and a root node in the E-Tree instance, and manage a designation of the inter-chassis port based on a status of the port connected to the root node.
Sami Boutros, Muthurajah Sivabalan, David Gilson
Filed: 9 Sep 21
Utility
Time-sliced GMP mapping with modified sigma-delta mapping function
28 Dec 23
A circuit includes an input configured to receive a plurality of client signals; a generic mapping procedure (GMP) block configured to map each of the plurality of client signals into a corresponding server signal; and a time-sliced GMP processor connected to the GMP block, and that operates in a time-sliced manner where the time-sliced GMP processor operates on each of the plurality of client signals, and wherein the time-sliced GMP processor is configured to perform a modified sigma-delta computation configured to determine data and stuff for a payload of each of the corresponding server signals.
Jamie Lynn Howard
Filed: 28 Jun 22
Utility
Predicting Forecasting Uncertainty
21 Dec 23
Systems and methods for receiving a time-series that includes a historical or current observation and determining future points of the time-series utilizing a forecasting deep neural network (DNN) to analyze the time-series and determining an uncertainty of the future points utilizing an uncertainty DNN to analyze the time-series and future points.
Petar Djukic, Ivan Radovic
Filed: 21 Jun 22
Utility
Digitally Enhanced Digital-to-analog Converter Resolution
21 Dec 23
Described herein are apparatus and methods for digitally enhancing digital-to-analog converter (DAC) resolution.
Mohammad Honarparvar, Sadok Aouini, Jerry Yee-Tung Lam, Soheyl Ziabakhsh Shalmani, Naim Ben-Hamida
Filed: 29 Oct 21
Utility
Optical interconnects for a programmable virtualized self-optimizing signal processor
21 Dec 23
An electrical circuit package includes an electrical processing engine (10) circuit configured to perform data processing; and one or more co-packaged coherent optical Input/Output (IO) modules (20) interconnected to the electrical processing engine (10) circuit, wherein the electrical processing engine (10) circuit is configured to interface electrical data including an optical signal waveform representation to each of the one or more co-packaged coherent optical IO modules, and wherein the one or more co-packaged coherent optical IO modules (20) are configured to coherently transmit and receive optical data based on the optical signal waveform representation.
Michael Y. Frankel, Stephen B. Alexander
Filed: 30 Sep 21
Utility
Automatic optical link calibration of amplified optical links
21 Dec 23
Systems and methods for automatic link calibration include subsequent to installation of equipment for the amplified optical section, obtaining power measurements of optical spectrum in the optical section; obtaining properties of fiber in the amplified optical link; analyzing the power measurements and the properties of the fiber to determine settings for the equipment for calibration thereof; and automatically configuring the settings for the equipment.
Choudhury A. Al Sayeed, David C. Bownass, David Atkinson, Scott Kohlert
Filed: 29 Aug 23
Utility
Reversing direction of packet transmission in a network having a ring topology
21 Dec 23
A method implemented by a node in a network having a ring topology includes the step of discovering a first peer node arranged in a first direction around the ring with respect to the node.
Pranav Mehta, Muthurajah Sivabalan, Sami Boutros
Filed: 27 Oct 22
Utility
Handling diversity constraints with Segment Routing and centralized PCE
21 Dec 23
A method implemented in a Path Computation Element (PCE) or Software Defined Networking (SDN) controller includes computing a path for a service in a Segment Routing network where the path includes an explicit list of routers in the Segment Routing network; determining a Segment Identifier (SID) list for the path; an signaling the explicit list and the SID list to a head-end router for the service.
Cengiz Alaettinoglu, Amal Karboubi, Himanshu Shah, Muthurajah Sivabalan
Filed: 28 Aug 23
Utility
Label Distribution Protocol (LDP) convergence in ring topologies
21 Dec 23
A method implemented by a node in a network utilizing Multiprotocol Label Switching (MPLS) includes performing a convergence procedure to discover the topology of a network in which multiple nodes are arranged; and upon determining that the topology of the network is a ring topology whereby the node is connected to two neighboring nodes by a respective link, creating a first table for a first link, the first table including labels representing at least a portion of a label stack for allowing the node to transmit packets to another node in the network in a clockwise (CW) direction around the ring; and creating a second table for a second link, the second table including labels representing at least a portion of a label stack for allowing the node to transmit packets to another node in the network in an anti-clockwise (ACW) direction around the ring.
Bindhia Komath, Muthurajah Sivabalan, Wade Miller, Tao Wang, Sami Boutros
Filed: 16 Jun 22
Utility
Stress compensating pick-up tool
19 Dec 23
A stress compensating pick-up tool for aligning a companion chip with a host chip includes a tool tip and an actuator.
Raphael Beaupré-Laflamme, Simon Savard
Filed: 9 Sep 20
Utility
Low RF crosstalk devices via a slot for isolation
19 Dec 23
An apparatus includes a plurality of layers arranged on top of one another and including at least one ground layer and a signal layer; a first set of signal pads and a second set of signal pads on the signal layer; and a slot formed in the at least one ground layer between the first set of signal pads and the second set of signal pads.
Ramin Deban, Jean-Frédéric Gagné
Filed: 5 Oct 21