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  • Systems and methods for implementing a network resiliency testbed emulator
    Patent number: 11909621
    Abstract: A method for network resiliency testing comprising: executing a resiliency testbed application at a plurality of virtual machines; accessing, by the plurality of virtual machines, network configuration data stored in a configuration database, the configuration data corresponding to a topology of a network to be emulated; configuring at least a portion of the virtual machines, according to the network configuration data, to emulate a plurality of nodes of the network to be emulated; automatically determining least cost paths between the plurality of nodes; simulating communications between the plurality of nodes based on the determined least cost paths; and determining one or more metrics of the network to be emulated based on the simulation.
    Type: Grant
    Filed: June 2, 2023
    Date of Patent: February 20, 2024
    Assignee: LinQuest Corporation
    Inventor: Robert Arthur Hughes, Jr.
  • MULTIPATH REJECTION USING COOPERATIVE GPS RECEIVERS
    Publication number: 20150323675
    Abstract: Systems and methods are disclosed for improving the speed and accuracy of terrestrial tracking with more than one receiver. Furthermore, terrestrial tracking of more than one receiver can be improved in areas where terrestrial tracking has been difficult to accomplish with acceptable accuracy, such as in rural areas where buildings can reflect satellite, and other, signals. For example, fast and precise position estimation in a short delay multipath environment can be solved by simultaneously estimating the position of multiple receivers using receiver to receiver distance ranges.
    Type: Application
    Filed: May 12, 2015
    Publication date: November 12, 2015
    Applicant: Linquest Corporation
    Inventors: Michael Munoz, Shawkang Wu, Faezeh Mousavi
  • Multipath rejection using cooperative GPS receivers
    Patent number: 10330790
    Abstract: Systems and methods are disclosed for improving the speed and accuracy of terrestrial tracking with more than one receiver. Furthermore, terrestrial tracking of more than one receiver can be improved in areas where terrestrial tracking has been difficult to accomplish with acceptable accuracy, such as in rural areas where buildings can reflect satellite, and other, signals. For example, fast and precise position estimation in a short delay multipath environment can be solved by simultaneously estimating the position of multiple receivers using receiver to receiver distance ranges.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: June 25, 2019
    Assignee: Linquest Corporation
    Inventors: Michael Munoz, Shawkang Wu, Faezeh Mousavi
  • SYSTEMS AND METHODS FOR IMPLEMENTING A NETWORK RESILIENCY TESTBED EMULATOR
    Publication number: 20230396528
    Abstract: A method for network resiliency testing comprising: executing a resiliency testbed application at a plurality of virtual machines; accessing, by the plurality of virtual machines, network configuration data stored in a configuration database, the configuration data corresponding to a topology of a network to be emulated; configuring at least a portion of the virtual machines, according to the network configuration data, to emulate a plurality of nodes of the network to be emulated; automatically determining least cost paths between the plurality of nodes; simulating communications between the plurality of nodes based on the determined least cost paths; and determining one or more metrics of the network to be emulated based on the simulation.
    Type: Application
    Filed: June 2, 2023
    Publication date: December 7, 2023
    Applicant: LinQuest Corporation
    Inventor: Robert Arthur HUGHES, Jr.
  • SYSTEMS AND METHODS FOR SERVICE RESTORATION FOR SATELLITE COMMUNICATIONS RESILIENCE
    Publication number: 20230396326
    Abstract: A method for satellite communications network resiliency comprising, at a satellite service provider computing system: identifying a set of lost links between user terminals of a satellite communications network, wherein the lost links are due to a loss of at least one beam of the satellite communications network; determining a repointing of at least one user terminal to restore at least a portion of the lost links by using one or more optimization algorithms to determine a set of one or more user terminal repointings that maximize a reward based on the set of lost links and a network graph and a beam graph associated with the satellite communications network; and instructing repointing of the at least one user terminal.
    Type: Application
    Filed: June 2, 2023
    Publication date: December 7, 2023
    Applicant: LinQuest Corporation
    Inventor: Richard L. GOBBI
  • AUTOMATED DEPLOYMENT OF SOFTWARE COMPONENTS
    Publication number: 20210034347
    Abstract: A method, a system, and a computer program product for automated deployment of software components. A request for one or more updates to one or more functionalities of a software application is received. The software application is installed on at least one user device. Based on the request, one or more updates to one or more functionalities of the software application are generated. The updates are generated in accordance with at least one runtime instance associated with the software application. The generated updates to one or more functionalities of the software application are compared with one or more previously stored functionalities of the software application. Based on the comparison, at least one generated update to one or more functionalities of the software application is selected for instantiation on the user device. The generated update is instantiated on the user device.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 4, 2021
    Applicant: LinQuest Corporation
    Inventor: Harold A. Robbins
  • SYSTEMS AND METHODS FOR NETWORK RESILIENCY
    Publication number: 20230396642
    Abstract: A method comprising defining a model that represents a communication network, wherein defining the model comprises: formulating a directed graph comprising nodes that represent communication data sources, communication data sinks, and communication data routers of at least a portion of the communication network and arcs connecting nodes that represent communication links between the communication data sources, communication data sinks, and communication data routers, defining a plurality of layers, each layer associated with a different set of communication priorities and comprising a replication of the directed graph, and assigning data communication attributes to the nodes and arcs of each layer, at least a portion of the data communication attributes being associated with different communication priorities; and determining an optimized set of communication flows through the model based on a minimization of communication cost.
    Type: Application
    Filed: June 2, 2023
    Publication date: December 7, 2023
    Applicant: LinQuest Corporation
    Inventors: Ian Richard COTE, Hoai Xuan VU
  • Estimation of propellant remaining in a satellite
    Patent number: 9482569
    Abstract: An amount of propellant remaining in an orbiting satellite can be estimated in a more accurate manner than is possible with conventional approached. Pressure and temperature telemetry data received from the satellite can be analyzed using a maximum likelihood estimation approach that reconstructs a predicted tank pressure signal using the temperature data and determines a pressurant volume necessary to make the reconstructed pressure signal match the received pressure signal. Drift of the pressure data received from pressure transducers in the satellite can also be addressed using the current subject matter, as can issues including but not limited to inaccessible propellant due to satellite spin, tank expansion under pressure, and the like. Independent determinations of the amounts of propellant remaining can be made using moment of inertia calculations in situations in which an axis of spin of the satellite is known a priori.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: November 1, 2016
    Assignee: Linquest Corporation
    Inventor: Hoai Xuan Vu
  • COMMUNICATION NETWORK RESILIENCE BASED ON DISTRIBUTED MULTI-AGENT Q-LEARNING ALGORITHM
    Publication number: 20230396623
    Abstract: A method for strengthening communication network resilience at a source agent of the communication network, comprising accessing an access list comprising communication relay agents available to the source agent. The method further comprising accessing a Q-table that corresponds to the communication relay agents available to the source agent. The method further comprising the source agent transitioning from communicating via a current communication relay agent to communicating via a new communication relay agent at a time slot, wherein the new communication relay agent is determined based on a set of entries in the Q-table. The method further comprising receiving data indicative of an actual reward for transitioning to the new communication relay agent, and updating the entry in the Q-table corresponding to the transition from the current communication relay agent to the new communication relay agent.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 7, 2023
    Applicant: LinQuest Corporation
    Inventors: Lan Kim NGUYEN, Elsa Newman SCHAEFER, Robert Arthur HUGHES, JR.
  • Estimation of propellant remaining in a satellite
    Patent number: 8781652
    Abstract: An amount of propellant remaining in an orbiting satellite can be estimated in a more accurate manner than is possible with conventional approached. Pressure and temperature telemetry data received from the satellite can be analyzed using a maximum likelihood estimation approach that reconstructs a predicted tank pressure signal using the temperature data and determines a pressurant volume necessary to make the reconstructed pressure signal match the received pressure signal. Drift of the pressure data received from pressure transducers in the satellite can also be addressed using the current subject matter, as can issues including but not limited to inaccessible propellant due to satellite spin, tank expansion under pressure, and the like. Independent determinations of the amounts of propellant remaining can be made using moment of inertia calculations in situations in which an axis of spin of the satellite is known a priori.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: July 15, 2014
    Assignee: LinQuest Corporation
    Inventor: Hoai Xuan Vu
  • SYSTEMS AND METHODS FOR MASSIVE PHASED ARRAYS VIA BEAM-DOMAIN PROCESSING
    Publication number: 20220006189
    Abstract: A method generates a dynamic tracking beam from an N-element receiving phased array antenna with a digital-beam-forming (DBF) network, N being an integer greater than 100, by performing digital beam forming to capture a desired signal from a moving source via the N-element phased array, including digitally multiplying received signals in the N-elements by a tracking beam beam weight vector (BWV) for the tracking beam, wherein the tracking beam BMV comprises N I/Q components; reading M pre-stored spot beam BWVs for M contiguous spot beams from a memory; determining a new tracking beam BWV for the tracking beam in a next update, wherein the new tracking beam BWV is a weighted sum of the M pre-stored spot beam BWVs of the M contiguous spot beams; and loading the new tracking beam BWV to a buffer.
    Type: Application
    Filed: June 29, 2021
    Publication date: January 6, 2022
    Applicant: LinQuest Corporation
    Inventors: Donald CHANG, Stuart BOCKMAN
  • Systems and methods for massive phased arrays via beam-domain processing
    Patent number: 11916305
    Abstract: A method generates a dynamic tracking beam from an N-element receiving phased array antenna with a digital-beam-forming (DBF) network, N being an integer greater than 100, by performing digital beam forming to capture a desired signal from a moving source via the N-element phased array, including digitally multiplying received signals in the N-elements by a tracking beam beam weight vector (BWV) for the tracking beam, wherein the tracking beam BMV comprises N I/Q components; reading M pre-stored spot beam BWVs for M contiguous spot beams from a memory; determining a new tracking beam BWV for the tracking beam in a next update, wherein the new tracking beam BWV is a weighted sum of the M pre-stored spot beam BWVs of the M contiguous spot beams; and loading the new tracking beam BWV to a buffer.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: February 27, 2024
    Assignee: LinQuest Corporation
    Inventors: Donald Chang, Stuart Bockman
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