310 patents
Page 9 of 16
Utility
Out-of-band communication channel for subcarrier-based optical communication systems
1 Feb 22
An example system includes a hub transceiver and a plurality of edge transceivers.
Steven J. Hand
Filed: 4 Jun 20
Utility
Fast Scan Method and Apparatus for Beacon Auto-tune
27 Jan 22
Consistent with the present disclosure, a local oscillator is provided in a receiver.
Freeman N. Freeman, Paul Gavrilovic, Steven Joseph Hand
Filed: 22 Jul 21
Utility
System and Method of Use of Extensible Network Element Software Agents for State and Network Verifications In Packet or Optical Transport Networks
27 Jan 22
Methods for, and network elements in, packet or optical transport networks are disclosed, including a network element comprising non-transitory computer readable medium storing computer-executable instructions configured as one or more software agents that when executed with computer hardware: determine a state of the network element, comprising comparing a current state of transient properties of the network element against a predetermined, expected state of the transient properties of the network element; and verify a state of other network elements or paths in the transport network by comparing a current state of one or more network-level constraints of the other network elements or paths against a predetermined, expected state of the one or more network-level constraints on the other network elements or paths.
Abhinava Shivakumar Sadasivarao, Loukas Paraschis, Sharfuddin Syed, Robert Maher
Filed: 22 Jul 21
Utility
Printed circuit board having a differential pair routing topology with negative plane routing and impedance correction structures
25 Jan 22
A printed circuit board including a set of five layers encompassing a breakout area is described.
Aneesh Kachroo, Mithun Gopal V V, Navneeth Jayaraj
Filed: 20 Jun 19
Utility
Self-referenced Method and Apparatus for In-operation Measurement of a Coherent Optical Transmitter's Modulation Loss
20 Jan 22
An optical network component and method are herein described.
Amir Rashidinejad, Matthew Fisher
Filed: 14 Jul 21
Utility
Digital Tone-based Apparatus and Method for Measuring the Frequency Response of Coherent Optical Transmitters
20 Jan 22
An optical network component, system, and method are herein described.
Amir Rashidinejad, Wenbo Gao
Filed: 14 Jul 21
Utility
Multi Layer Protection Control for Coherent DWDM Networks
20 Jan 22
A terminal node, an optical network and/or a method are described in which a first processor of a first optical protection switching module having a first optical switch, and a second processor of a second optical protection switching module having a second optical switch coordinate switching of the first optical switch and the second optical switch upon detection of a first failure by the first processor, or the detection of a second failure by the second processor.
Kapil Juneja, Amit Satbhaiya, Rajan Rao
Filed: 18 Dec 20
Utility
Light absorption and scattering devices in a photonic integrated circuit that minimize optical feedback and noise
18 Jan 22
A photonic integrated circuit is provided that may include a substrate; one or more optical sources, on the substrate, to output light associated with a corresponding one or more optical signals; one or more waveguides connected to the one or more optical sources; a multiplexer connected to the one or more waveguides; and one or more light absorptive structures, located on the substrate adjacent to one of the one or more optical sources, one of the one or more waveguides, and/or the multiplexer, to absorb a portion of the light associated with at least one of the corresponding one or more optical signals.
Peter Weindel Evans, Pavel Viktorovich Studenkov, Mehrdad Ziari, Matthias Kuntz
Filed: 24 Jun 16
Utility
Transmitting and Receiving Data Using a Satellite Communications Network
13 Jan 22
An example apparatus includes an optical transmitter, an optical splitter, lenses, and mirrors.
Steven Joseph Hand, Tulasi Veguru, Prasad Paranjape, Han Henry Sun
Filed: 24 Dec 20
Utility
Digital Bandwidth Allocation on Multiple Digital Subcarriers Using Probabilistically Shaped Modulations
13 Jan 22
Consistent with the present disclosure, an encoder circuit is provided at a transmit side of an optical fiber link that maps an input sequence of bits of fixed length k a sequence of symbols of a codeword of length n, such that the symbols of the codeword define a predetermined transmission probability distribution.
Mehdi Torbatian, Thomson Sandy, Mehdi Karimi, Han Henry Sun, Kuang-Tsan Wu
Filed: 13 May 21
Utility
Out-of-band Communication Channel for Subcarrier-based Optical Communication Systems
6 Jan 22
An example system includes a hub transceiver, a plurality of edge transceivers, and a control module.
Steven J. Hand
Filed: 4 Jun 20
Utility
Correcting Traffic Misconnections In Optical Communications Networks
6 Jan 22
An example system includes a transceiver and a microcontroller.
Rajan Rao, Steven J. Hand, Vasudha Bhaskara
Filed: 6 Jul 21
Utility
Correcting Traffic Misconnections In Optical Communications Networks
6 Jan 22
An example system includes a transceiver and a microcontroller.
Rajan Rao, Steven J. Hand, Vasudha Bhaskara
Filed: 6 Jul 21
Utility
Efficient Adaptive Optical Spectrum Partitioning and Allocation Scheme
6 Jan 22
A system comprising a hub transceiver and edge transceivers is described.
Iftekhar Hussain, Steven J. Hand, Paul N. Freeman
Filed: 20 May 21
Utility
Code division multiple access optical subcarriers
4 Jan 22
Consistent the present disclosure, a network or system is provided in which a hub or primary node may communication with a plurality of leaf or secondary nodes.
Amir Jafari, David F. Welch, Steven Joseph Hand, Mohamed Osman
Filed: 4 Mar 20
Utility
Out-of-band communication channel for subcarrier-based optical communication systems
4 Jan 22
An example system includes a plurality of hub transceivers and a plurality of edge transceivers.
Steven J. Hand
Filed: 4 Jun 20
Utility
Method and system to synchronize remote defect signaling and wavelength selective switch controls
28 Dec 21
A system and method is disclosed in which circuitry of a first controller of a first node on a first path within a transport network receives a first signal indicating a failure within the first path from a second controller.
Nikhil Kumar Satyarthi, Amit Satbhaiya, Sanjeev Ramachandran, Rajan Rao, Baranidhar Ramanathan, Dileep Padala, Dinesh Kumar Prakasam
Filed: 17 Aug 18
Utility
Data Synchronization In Optical Networks and Devices
23 Dec 21
Joint estimation of the framer index and the frequency offset in a optical communication system are described among various other features.
Mehdi Torbatian, Yuliang Gao, Ahmed Morra, Han Henry Sun, Yeongho Park
Filed: 24 Dec 20
Utility
Data Synchronization In Optical Networks and Devices
23 Dec 21
Joint estimation of the framer index and the frequency offset in an optical communication system are described among various other features.
Mehdi Torbatian, Yuliang Gao, Ahmed Morra, Han Henry Sun, Yeongho Park
Filed: 24 Dec 20
Utility
Apparatus and method to improve optical reach in bidirectional optical transmission systems employing single-laser coherent transceivers
14 Dec 21
Optical networks, transponders and single-laser coherent transceiver are described.
Emilio Bravi
Filed: 21 Dec 18