Patents by Inventor Derek Xu

Derek Xu 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: 20240161391
    Abstract: The present invention sets forth a technique for generating two-dimensional (2D) renderings of a three-dimensional (3D) scene from an arbitrary camera position under arbitrary lighting conditions. This technique includes determining, based on a plurality of 2D representations of a 3D scene, a radiance field function for a neural radiance field (NeRF) model. This technique further includes determining, based on a plurality of 2D representations of a 3D scene, a radiance field function for a “one light at a time” (OLAT) model. The technique further includes rendering a 2D representation of the scene based on a given camera position and illumination data. The technique further includes computing a rendering loss based on the difference between the rendered 2D representation and an associated one of the plurality of 2D representations of the scene. The technique further includes modifying at least one of the NeRF and OLAT models based on the rendering loss.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 16, 2024
    Inventors: Derek Edward BRADLEY, Prashanth CHANDRAN, Paulo Fabiano URNAU GOTARDO, Yingyan XU, Gaspard ZOSS
  • Publication number: 20240162477
    Abstract: A lithium iron phosphate electrochemically active material for use in an electrode and methods and systems related thereto are disclosed. In one example, a lithium iron phosphate electrochemically active material for use in an electrode is provided including, a dopant comprising vanadium and optionally a co-dopant comprising cobalt.
    Type: Application
    Filed: January 23, 2024
    Publication date: May 16, 2024
    Inventors: Chuanjing Xu, Maha Hammoud, Judith M. LaForest, Hyojin Lee, Derek Johnson
  • Publication number: 20240150448
    Abstract: The present invention relates to neutralizing antibodies of the human pituitary adenylate cyclase activating polypeptide type I receptor (PAC1) and pharmaceutical compositions comprising such antibodies. Methods of treating or preventing headache conditions, such as migraine and cluster headache, using the neutralizing antibodies are also described.
    Type: Application
    Filed: December 19, 2023
    Publication date: May 9, 2024
    Applicant: AMGEN INC.
    Inventors: Neeraj Jagdish AGRAWAL, Irwin CHEN, Su CHONG, Bryna FUCHSLOCHER, Kevin GRAHAM, Agnes Eva HAMBURGER, Mark Leo MICHAELS, Christopher MOHR, Derek E. PIPER, Kenneth William WALKER, Zhulun WANG, Cen XU
  • Patent number: 11965074
    Abstract: Anion exchange membrane and methods of making and using the same. In one embodiment, the anion exchange membrane may be made by a method that includes a two-step polymerization. In the first step, an ?-olefin monomer containing a pendant halide, such as 8-bromo-1-octene, may be polymerized by Ziegler-Natta polymerization to form a first polymer portion, the first polymer portion being a homopolymer. In the second step, the polymerization is charged with a non-functionalized ?-olefin monomer, such as ethylene, thereby forming a second polymer portion, the second polymer being a copolymer made up predominantly of the non-functionalized olefin monomer. If desired, a small amount of an ?-olefin monomer containing a crosslinking functionality may be included in the first and/or second steps. Following the two-step polymerization, the polymer is fabricated into a thin film. Thereafter, the thin film may be functionalized by replacing the pendant halides with pendant cations.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: April 23, 2024
    Assignee: GINER, INC.
    Inventors: Derek J. Strasser, Hui Xu, Judith Lattimer
  • Patent number: 11960338
    Abstract: An activity smoothener circuit is provided to control rates of change in processing activity to limit di/dt in activity areas of an IC to mitigate voltage droops or overshoots. Controlling the rate of change of activity prevents or reduces instances of a di/dt exceeding a programmed maximum that is based on physical limits of the IC and/or a package. In examples, the activity smoothener circuit includes a hierarchy of smoothening circuits controlling activity in areas down to individual circuit blocks (tiles) including execution circuits. An indication of a desired level of activity is provided to a parent smoothening circuit and the parent smoothening circuit responds with indications of actual activity allowed to occur. At each level of hierarchy, the activity smoothener circuit may use algorithms to generate indications of actual activity based on indications of desired activity and di/dt limits. Di/dt limits and current minimums and maximums are controlled.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: April 16, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Smitha L. Rapaka, Derek E. Gladding, Xiaoling Xu
  • Patent number: 11916185
    Abstract: A lithium iron phosphate electrochemically active material for use in an electrode and methods and systems related thereto are disclosed. In one example, a lithium iron phosphate electrochemically active material for use in an electrode is provided including, a dopant comprising vanadium and optionally a co-dopant comprising cobalt.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: February 27, 2024
    Assignee: A123 SYSTEMS LLC
    Inventors: Chuanjing Xu, Maha Hammoud, Judith M. LaForest, Hyojin Lee, Derek Johnson
  • Publication number: 20170147770
    Abstract: When monitoring patients in a general ward, clinical decision support risk scores are evaluated to determine whether a patient should be monitored using a spot check method whereby a caregiver periodically checks the patient, a continuous monitoring method whereby the patient is monitored by a monitoring device such as an electrocardiograph, or whether the patient requires transfer to a progressive care unit (PCU) or intensive care unit (ICU). When the number of patient monitors is not sufficient to assign a monitor to all patients for whom a monitor is desired, CDS score thresholds are adjusted to ensure that the neediest patients are assigned monitors.
    Type: Application
    Filed: November 22, 2016
    Publication date: May 25, 2017
    Inventors: Derek Xu, Eric Thomas Carlson, Oladimeji Feyisetan Farri, Lin Yang, Larry James Eshelman