Patents by Inventor Nam Nguyen

Nam Nguyen 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).

  • Publication number: 20190277244
    Abstract: The present invention provides improvement of the operation of a wave energy system by use of a method for predictive control (COM) of the converter machine that maximizes the energy generated by considering the energy conversion efficiency (MOD ENE) and a wave prediction (PRED). Furthermore, the method according to the invention determines the optimal control by minimizing an objective function weighted and discretized by the trapezoidal rule.
    Type: Application
    Filed: October 26, 2017
    Publication date: September 12, 2019
    Inventors: Paolino TONA, Hoai-Nam NGUYEN
  • Publication number: 20190277866
    Abstract: The invention relates to compositions and methods for utilizing lysophosphatidylcholine scaffolds. The compositions and methods can be used for LPC-mediated delivery of fatty acids and other molecules; to screen and identify fatty acid formulations for parenteral nutrition; and for live animal organ imaging, among other uses. The invention also provides compositions and methods for utilizing mutations and polymorphisms in human Mfsd2a as markers for neurological deficits.
    Type: Application
    Filed: December 26, 2018
    Publication date: September 12, 2019
    Inventors: David Lawrence SILVER, Long Nam Nguyen, Robert Zahler
  • Patent number: 10392925
    Abstract: The disclosed embodiments include leak detection systems and methods of downhole leak detection. In one embodiment, the method includes obtaining physical signals measured by at least one physical sensor traveling along a wellbore. The method also includes performing a frame decomposition operation on the physical signals of a first of the at least one the physical sensor to obtain a plurality of virtual signals associated with an array of virtual sensors, each virtual sensor of the array of virtual sensors being located at a virtual distance relative to the first physical sensor, the virtual distance corresponding to a physical distance. The method further includes synchronizing the virtual signals of the array of virtual sensors. The method further includes computing a spatial spectrum indicative of a location of a leak based on the synchronized virtual signals.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: August 27, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Yi Yang Ang, Nam Nguyen, Joni Lie, Yinghui Lu, Avinash Vinayak Taware
  • Patent number: 10385857
    Abstract: A method for monitoring operation of an electric submersible pump. The method includes receiving data signals indicating values for a plurality of parameters regarding operation of the electric submersible pumping system; establishing, for at least some of the plurality of parameters, an associated reference signal; and detecting a deviation of one of the parameters from the reference signal associated with that parameter. As a result of the deviation having a rate of change below a predetermined threshold, the method includes updating the value of the reference signal to reflect the deviation. As a result of the deviation having a rate of change above the predetermined threshold, the method includes detecting an event and generating an indication of the event. The indication of the event further depends on a type of the parameter and a direction of the deviation from the reference signal.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: August 20, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Nam Nguyen, Yves-Marie Clet Robert Subervie, Emmanuel Coste
  • Publication number: 20190230127
    Abstract: Aspects of the disclosed technology relate to ways to authenticate customer/subscriber access to a policy update stream. A process of the technology can include steps for instantiating a network monitoring device in response to a request, the request comprising one or more configuration parameters for the network monitoring device, and receiving a first certificate from the network monitoring device, wherein the first certificate is based on the one or more configuration parameters. In some aspects, the steps can further include sending the first certificate to a processing pipeline for authentication, wherein the processing pipeline is configured to authenticate the first certificate based on a second certificate received by the processing pipeline from the network monitoring device. Systems and machine readable media are also provided.
    Type: Application
    Filed: July 11, 2018
    Publication date: July 25, 2019
    Inventors: Shashi Gandham, Navindra Yadav, Janardhanan Radhakrishnan, Hoang-Nam Nguyen, Umesh Paul Mahindra, Sunil Gupta, Praneeth Vallem, Supreeth Rao, Darshan Shrinath Purandare, Xuan Zou, Girish Anant Kalele, Jothi Prakash Prabakaran
  • Publication number: 20190230011
    Abstract: Aspects of the subject technology relate to a system configured to receive, from a stream processing service, a first network snapshot segment. The first network snapshot segment is associated with metadata that is used to determine that at least one additional network snapshot segment associated with the output stream has not been previously received. The system is configured to request, from the stream processing service, the at least one additional network snapshot segment and generate a first network snapshot by compiling the first network snapshot segment and the at least one additional network snapshot segment.
    Type: Application
    Filed: May 17, 2018
    Publication date: July 25, 2019
    Inventors: Shashi Gandham, Navindra Yadav, Janardhanan Radhakrishnan, Hoang-Nam Nguyen, Umesh Paul Mahindra, Sunil Gupta, Praneeth Vallem, Supreeth Rao, Darshan Shrinath Purandare, Xuan Zou, Akshay Srirangam, Jothi Prakash Prabakaran
  • Publication number: 20190230112
    Abstract: Aspects of the subject technology relate to a system configured to receive a set of network snapshot segments from an output stream of a stream processing service, compile the set of network snapshot segments from the set of messages into a first network snapshot and a second network snapshot, and compare the first network snapshot and the second network snapshot to identify a difference between the first network snapshot and the second network snapshot.
    Type: Application
    Filed: May 29, 2018
    Publication date: July 25, 2019
    Inventors: Shashi Gandham, Navindra Yadav, Janardhanan Radhakrishnan, Hoang-Nam Nguyen, Umesh Paul Mahindra, Sunil Gupta, Praneeth Vallem, Supreeth Rao, Darshan Shrinath Purandare, Xuan Zou, Joseph Daniel Beshay, Jothi Prakash Prabakaran
  • Patent number: 10359525
    Abstract: A method including selecting a forward model based on a modeled well structure and including a single modeled acoustic source located in a modeled wellbore and a plurality of modeled acoustic sensors located in a modeled source area, simulating an acoustic signal generated by the single modeled acoustic source and received by each modeled acoustic sensor, calculating phases of the simulated acoustic signals received at each modeled acoustic sensor, obtaining with a principle of reciprocity a plurality of modeled acoustic sources in the modeled source area and a single modeled acoustic sensor in the modeled wellbore, calculating phase delays of the simulated acoustic signals between each modeled acoustic source and the single modeled acoustic sensor, detecting acoustic signals generated by a flow of fluid using acoustic sensors in a wellbore, and processing the acoustic signals using the phase delays to generate a flow likelihood map.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 23, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Srinivasan Jagannathan, Yinghui Lu, Rebecca Jachmann, Nam Nguyen, Yi Yang Ang
  • Publication number: 20190203585
    Abstract: A passive array of acoustic sensors capture acoustic signals produced by sand movement. The array tool is deployed downhole where it passively listens for acoustic energy generated by sand movement in the well. Once acoustic signals are acquired, model-based frameworks are used to extract single and multiple sensor features from the acoustic signals. The extracted features are used as signatures to detect or classify the production of sand.
    Type: Application
    Filed: September 26, 2016
    Publication date: July 4, 2019
    Inventors: Nam Nguyen, Yi Yang Ang, Srinivasan Jagannathan, Avinash Taware, Darren Philip Walters, Freeman Hill
  • Publication number: 20190162838
    Abstract: Method of slowly moving target detection with application for coastal surveillance radars. This method improves the well know other methods and efficiently detects targets with a high accuracy. The proposed method consists of three steps that are: step of generation and processing of signals with complex modulation; step of target clustering and step of detection of slowly moving targets in clutter environments.
    Type: Application
    Filed: November 23, 2018
    Publication date: May 30, 2019
    Applicant: VIETTEL GROUP
    Inventors: Hoai Nam Luu, Vu Hop Tran, Xuan Hoang Dong, Duc Duong Nguyen, Trung Duc Le
  • Publication number: 20190162599
    Abstract: The invention proposes a mechanism and method of focusing for optical systems by gear and timing belt. In particular, the focusing mechanism for the optical system by gear and timing belt consists of the following components: the optical front cover module (including the first lens element, the middle lens element, the mechanical of front cover); The optical rear cover module (including last lens element, mechanical of rear cover); The focusing mechanism (including adjustment ring, radial shaft seal, transmission shaft, timing pulley, timing belt, ball bearing, large gear); The protection and mounting mechanical system (including mechanical protection cover, internal mounting mechanical system). The method of focusing for the optical system by mean of gear and timing belt consists of the following steps: Step 1: Integrating the mechanism into the mechanical of the system; Step 2: Adjusting the final lens element; Step 3: Identifying the most convergent position of the optical system.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 30, 2019
    Applicant: VIETTEL GROUP
    Inventors: Hong Nam TA, Van Tho NGUYEN
  • Publication number: 20190158536
    Abstract: An aspect includes a computer system with a network encryption device and a trusted container within firmware or hardware and/or within a virtual machine running on the computer system. The network encryption device includes a key store for storing secret encryption keys and a network traffic encryption engine for negotiating and/or storing encryption keys in the key store and/or for encrypting and/or decrypting network traffic using the encryption keys from the key store. The trusted container includes a flow analyzer for analyzing network traffic received from the network encryption device.
    Type: Application
    Filed: November 20, 2017
    Publication date: May 23, 2019
    Inventors: Marco Kraemer, Hoang-Nam Nguyen, Carsten Otte, Christoph Raisch
  • Publication number: 20190132894
    Abstract: A method at a first device for enabling a device-to-device wireless link, the method detecting whether a presence signal of a second device is received over a first time period, the presence signal of the second device having a time-slot boundary; and if the presence signal of the second device is not detected, initiating a time-slot boundary by the first device including: transmitting a first presence signal of the first device in a selected time-slot; and checking for an acknowledgment to the first presence signal.
    Type: Application
    Filed: December 13, 2018
    Publication date: May 2, 2019
    Applicant: BlackBerry Limited
    Inventors: Nam NGUYEN, Yufei Wu BLANKENSHIP, Sagar DHAKAL
  • Publication number: 20190121130
    Abstract: A head-up display device for displaying a virtual image superimposed over a field of view to a viewer is provided. The head-up display device includes a picture generating unit having an illumination source, such as a laser, to generate a real image following a first light beam. A windshield of a vehicle engages the first light beam, either at an inclined angle or perpendicular, to reflect the first light beam away from the viewer as reflected images. A combiner disposed on the windshield including a holographic optical element steers the first light beam toward the viewer as a third light beam to present the virtual image within the field of view of the viewer. Mirrors may direct and magnify first light beam onto the combiner. A method for displaying a virtual image superimposed over a field of view to a viewer using a head-up display device is also provided.
    Type: Application
    Filed: October 25, 2017
    Publication date: April 25, 2019
    Inventors: GIANG-NAM NGUYEN, PATRICK NEBOUT, BENOIT CHAUVEAU
  • Publication number: 20190116344
    Abstract: A multi-image head-up display device for displaying a plurality of virtual images at different projection distances from a driver of a vehicle includes a picture generating unit with an illumination source that may include a plurality of lasers of different colors to illuminate a spatial light modulator with a first light beam. The spatial light modulator includes blocks of modulating elements to diffract the first light beam to form first and second real images upon first and second respective projection surfaces, each spaced apart from the spatial light modulator by a different focal length. The blocks may be configured as Fourier and/or Fresnel diffractive optical elements. A projection assembly may magnify and direct the real images to the viewer as virtual images each having a different projection distance from the viewer. A method for generating a plurality of virtual images with a head-up display device is also provided.
    Type: Application
    Filed: October 17, 2017
    Publication date: April 18, 2019
    Inventors: GIANG-NAM NGUYEN, PATRICK NEBOUT, BENOIT CHAUVEAU
  • Publication number: 20190093623
    Abstract: The invention relates to the real-time determination of the forces applied by waves incident upon the moving part (2) of a wave-energy system (1). The method according to the invention is based on the construction of a model of the radiation force applied to the moving part (2) and a model of the dynamics of the wave-energy system (1). The invention uses only measurements of the kinematics of the moving part (2) and the force applied by the conversion machine (3) to the moving part (2).
    Type: Application
    Filed: February 15, 2017
    Publication date: March 28, 2019
    Inventors: Hoai-Nam NGUYEN, Paolino TONA
  • Patent number: 10241003
    Abstract: The invention relates to a method of measuring time delays with respect to differential mode delay of a multi-mode fiber or a few-mode fiber for at least two different wavelengths. The time delays for each wavelength are measured before the single mode fiber is translated to a next radial offset.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: March 26, 2019
    Assignee: Draka Comteq B.V.
    Inventors: Franciscus Johannes Achten, Denis Molin, Nam Nguyen Thang
  • Patent number: 10233422
    Abstract: Methods of generating cell lines with a sequence variation or copy number variation of a gene of interest, methods of use thereof, and cell lines with a sequence variation or copy number variation of a gene of interest are provided.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: March 19, 2019
    Assignees: PARKINSON'S INSTITUTE, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Renee Ann Reijo Pera, J. William Langston, Birgitt Schule, Theodore D. Palmer, Blake Byers, Ha Nam Nguyen, James Anthony Byrne, Branden John Cord
  • Patent number: 10187113
    Abstract: A well tool for use in a wellbore can include a motor for performing a well operation. The well tool can include a switch that is couplable between the motor and a wireline. The switch can be toggleable between (i) a first operational state for providing the power to the motor by coupling the motor to an external power source and (ii) a second operational state for decoupling the motor from the external power source. The well tool can include a motor controller coupled to the switch for toggling the switch between the first operational state and the second operational state in an arrangement configured to impart, on the wireline, multiple current pulses including data encoded in the current pulses according to an encoding scheme.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: January 22, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Nam Nguyen, Colin Koo
  • Patent number: 10172176
    Abstract: A method at a first device for enabling a device-to-device wireless link, the method detecting whether a presence signal of a second device is received over a first time period, the presence signal of the second device having a time-slot boundary; and if the presence signal of the second device is not detected, initiating a time-slot boundary by the first device including: transmitting a first presence signal of the first device in a selected time-slot; and checking for an acknowledgment to the first presence signal.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: January 1, 2019
    Assignee: BlackBerry Limited
    Inventors: Nam Nguyen, Yufei Wu Blankenship, Sagar Dhakal