310 patents
Page 8 of 16
Utility
Out-of-band communication channel for subcarrier-based optical communication systems
5 Apr 22
In an example method, an edge transceiver receives a first message from a hub transceiver over a first communications channel of an optical communications network, including an indication of available network resources on the optical communications network.
Steven J. Hand
Filed: 4 Jun 20
Utility
Optical Modules with Virtual Transport Functions
31 Mar 22
Systems, devices, and techniques relating to optical communications are described.
Vasudha N. Bhaskara, Steven Joseph Hand, Rajan Rao
Filed: 13 Aug 21
Utility
OTDR with increased precision and reduced dead zone using superposition of pulses with varying clock signal delay
29 Mar 22
A method for determining the position of an irregularity in an optical transmission fiber using an optical time domain reflectometer, the method comprising the steps of emitting a succession of sampling light pulses into the optical transmission fiber, detecting reflected light pulses resulting from the reflection of the sampling light pulses at the irregularity in the optical transmission fiber and generating corresponding time-dependent detection signals, wherein different delays are associated with detection signals corresponding to different sampling light pulses, obtaining a combined signal from the detection signals, and analyzing the combined signal for determining the position of the irregularity in the optical transmission fiber with respect to the optical time domain reflectometer, wherein the combined signal corresponds to a superposition of the detection signals.
Lutz Rapp, Nuno Renato Duarte Pereira
Filed: 24 May 17
Utility
Dynamically switching queueing schemes for network switches
29 Mar 22
An example system includes a plurality of network nodes, each including one or more respective first transceivers configured to transmit data according to a first maximum throughput, and one or more respective second transceivers configured to transmit data according to a second maximum throughput that is less than the first maximum throughput.
Steven J. Hand
Filed: 31 Dec 19
Utility
Transmission Impairment Compensation In Point-to-multipoint Communication Systems
24 Mar 22
Systems and methods for performing impairment compensation in point-to-multi-point communication systems are described.
Syed Muhammad Bilal, Christopher Fludger, Scott Pringle, Mehdi Karimi, William Isaac
Filed: 20 Sep 21
Utility
Power Consumption Reduction In Soft Decoding of Generalized Product Codes
24 Mar 22
Systems and methods for more efficiently decoding generalized product codes (GPC) are described.
Mehdi Torbatian, Alex Nicolescu, Han Henry Sun
Filed: 20 Sep 21
Utility
Method and apparatus for a restoration network with dynamic activation of pre-deployed network resources
22 Mar 22
An optical network having a first terminal node, a second terminal node, and a network service system is described.
Rajan Rao, Wayne Wauford, Vinesh Raghavan, Prasanjeet Khuntia
Filed: 31 Dec 19
Utility
Data Synchronization In Optical Networks and Devices
10 Mar 22
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: 18 Nov 21
Utility
Data Synchronization In Optical Networks and Devices
10 Mar 22
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: 18 Nov 21
Utility
Data Synchronization In Optical Networks and Devices
10 Mar 22
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: 18 Nov 21
Utility
Data Synchronization In Optical Networks and Devices
3 Mar 22
Optical transmitters and receivers for improving synchronization of data transmitted over an optical network are described.
Mehdi Torbatian, Yuliang Gao, Ahmed Morra, Han Henry Sun, Yeongho Park
Filed: 24 Dec 20
Utility
Methods and Apparatuses to Mitigate Multicarrier Failure for Submarine Optical Links
24 Feb 22
Methods and apparatuses for restoring lost signal in a network transmission line are disclosed.
Ramakrishna Pratapa, Emilio Bravi
Filed: 18 Dec 20
Utility
Injection Locked High-power Low-noise Integrated Laser Array
24 Feb 22
Consistent with the present disclosure, an output of a seed laser is split by a series of first coupler stages and each split portion is provided to a respective laser in an array of secondary lasers to realized injection locking of the laser array.
Gloria E. Hoefler, Ashish Bhardwaj
Filed: 2 Apr 21
Utility
Frequency division multiple access optical subcarriers
22 Feb 22
A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes.
Jeffrey T. Rahn, Kuang-Tsan Wu, Steven J. Hand, David F. Welch
Filed: 22 Sep 19
Utility
Time division multiple access optical subcarriers
22 Feb 22
A transmitter can include a laser operable to output an optical signal; a digital signal processor operable to receive data and provide a plurality of electrical signals based on the data; and a modulator operable to modulate the optical signal to provide a plurality of optical subcarriers based on the plurality of electrical signals.
Amir Jafari, Kuang-Tsan Wu, David F. Welch, Steven Joseph Hand, Mohamed Osman
Filed: 4 Mar 20
Utility
Data Synchronization In Optical Networks and Devices
17 Feb 22
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
External network to network interface and optical express power controls
15 Feb 22
Methods, systems, and optical power controllers are disclosed.
Omer F. Yilmaz, Stephane St-Laurent, Steve Sanders, Matthew L. Mitchell
Filed: 20 Dec 18
Utility
Independently routable digital subcarriers for optical communication networks
15 Feb 22
Optical network systems and components are disclosed including a transmitter comprising a digital signal processor receiving a plurality of independent data streams, the digital signal processor supplying outputs based on the plurality of independent data streams, the digital signal processor comprising a plurality of pulse shape filters corresponding to the plurality of independent data streams, the plurality of pulse shape filters configured to filter the independent data streams to produce a first subcarrier having a first frequency bandwidth and a second subcarrier having a second frequency bandwidth different than the first frequency bandwidth for the outputs.
Jeffrey T. Rahn, Kuang-Tsan Wu, Steven Joseph Hand, Han Henry Sun
Filed: 7 Feb 19
Utility
Apparatus and method to reduce the impact of coherent crosstalk in optical networks
15 Feb 22
Optical networks, nodes and methods are disclosed.
Emilio Bravi
Filed: 12 Dec 18
Utility
Fast transient suppressor for optical transmission systems
8 Feb 22
An apparatus is described.
Stephane St-Laurent, Jonathan Michael Buset, Biao Lu, Steve Sanders
Filed: 20 Apr 20