Patents by Inventor David Chua

David Chua 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: 20220291806
    Abstract: A method includes determining to present a computer-generated reality (CGR) object that is associated with a first anchor and a second anchor. The method includes determining, based on an image of a physical environment, whether the physical environment includes a portion corresponding to the first anchor. The method includes, in response to determining that the physical environment lacks a portion that corresponds to the first anchor, determining, based on the image, whether the physical environment includes a portion corresponding to the second anchor. The method includes, in response to determining that the physical environment includes a portion that corresponds to the second anchor, displaying, on the display, the CGR object at a location of the display corresponding to the second anchor.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 15, 2022
    Inventors: Cameron J. Dunn, Eric Steven Peyton, Olivier Marie Jacques Pinon, Etienne H. Guerard, David John Addey, Pau Sastre Miguel, Michelle Chua, Eric Thivierge
  • Patent number: 11385761
    Abstract: In one embodiment, a method of generating a computer-generated reality (CGR) file includes receiving, via one or more input devices, user input generating a computer-generated reality (CGR) scene, a user input associating an anchor with the CGR scene, user input associating one or more CGR objects with the CGR scene, wherein the CGR objects are to be displayed in association with the anchor, and user input associating a behavior with the CGR scene, wherein the behavior includes one or more triggers and actions and wherein the actions are performed in response to detecting any of the triggers. The method includes generating a CGR file including data regarding the CGR scene, the CGR file including data regarding the anchor, the CGR objects, and the behavior.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: July 12, 2022
    Assignee: APPLE INC.
    Inventors: Cameron J. Dunn, Eric Steven Peyton, Olivier Marie Jacques Pinon, Etienne H. Guerard, David John Addey, Pau Sastre Miguel, Michelle Chua, Eric Thivierge
  • Publication number: 20120121993
    Abstract: Disclosed herein are electrolyte formulations containing methoxybenzene (also known as anisole or phenoxymethane) for use in lithium-air semi-fuel cells. Lithium-air semi-fuel cells contain a metallic lithium anode and an air (oxygen) fuel cell type porous carbon cathode. The reaction product in the cathode is lithium oxide (Li2O) and/or lithium peroxide (Li2O2). This reaction product is sparingly soluble in common lithium-air cell solvents, and therefore the cathode pores become blocked over time, leading to cell end-of-life. Methoxybenzene is an organic solvent that demonstrates an increased solubility of Li2O, which minimizes the clogging of the cathode. Lithium-air semi-fuel cells with electrolytes containing methoxybenzene demonstrate higher discharge capacities per the same weight, than the cells having electrolytes without methoxybenzene. Higher energy density semi-fuel cells are thus achieved.
    Type: Application
    Filed: November 12, 2010
    Publication date: May 17, 2012
    Inventors: David Chua, Owen Crowther, Benjamin Meyer, Mark Salomon
  • Publication number: 20110177401
    Abstract: Advanced lithium-air semi-fuel cell with non-aqueous electrolyte solution is provided, having higher energy density over the prior art cells, due to its protective, oxygen selective, permeable membrane of PTFE coated fiberglass cloth, placed over the cathode outer surface. Said membrane is flexible and protects the cell from moisture and evaporation of said electrolyte, which substantially minimizes parasitic losses of lithium and increases the cell efficiency and safety. The membrane may also have a layer of air-permeable adhesive added, facing said cathode.
    Type: Application
    Filed: December 17, 2010
    Publication date: July 21, 2011
    Inventors: Owen Crowther, David Chua, William Eppley, Benjamin Meyer, Mark Salomon, Arthur Driedger, Michael Morgan
  • Publication number: 20110177400
    Abstract: Advanced lithium-air cell with non-aqueous electrolyte solution is provided, having higher energy density over the prior art cells, due to protective oxygen selective permeable membrane placed over the cathode outer surface. Said membrane protects the cell from moisture and evaporation of said electrolyte, which substantially minimizes parasitic losses of lithium and increases the cell efficiency and safety.
    Type: Application
    Filed: January 21, 2010
    Publication date: July 21, 2011
    Inventors: David Chua, Arthur Driedger, Benjamin Meyer, Michael Morgan, Mark Salomon
  • Patent number: 7842423
    Abstract: Lithium metal anode protection, and various semi-fuel cell constructions for use in deep, high pressure seawater or air media are provided. The described lithium semi-fuel cells achieve record high energy densities, due to the high energy density of lithium anode and the use of the cathode reactant from the surrounding media, which is not part of the cell weight, and the use of ultralight and flexible packaging materials. These features make the described semi-fuel cells the ideal choice for powering underwater and air vehicles.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: November 30, 2010
    Assignee: MaxPower, Inc.
    Inventors: Ian Kowalczyk, William Eppley, Mark Salomon, David Chua, Benjamin Meyer
  • Publication number: 20100010856
    Abstract: A method and system of constraint-based project scheduling. The method comprises maintaining a first database containing project scheduling data associated with at least a current period and a next period of an assignment plan; maintaining a second database containing data associated with a look ahead plan, the look ahead plan covering at least an overlap portion of the next period of the assignment plan such that the look ahead plan overlaps the assignment plan; transferring data associated with one or more shielded tasks having a starting time within the overlap portion of the next period from the second database into the first database as a modification of the project scheduling data associated with the next period of the assignment plan; and executing the project according to the next period of the assignment plan based on the modified project scheduling data associated with the next period in the first database.
    Type: Application
    Filed: February 8, 2007
    Publication date: January 14, 2010
    Inventors: Kim Huat David Chua, Lijun Shen, Kim Hoong Lee
  • Publication number: 20080102358
    Abstract: Lithium metal anode protection, and various semi-fuel cell constructions for use in deep, high pressure seawater or air media are provided. The described lithium semi-fuel cells achieve record high energy densities, due to the high energy density of lithium anode and the use of the cathode reactant from the surrounding media, which is not part of the cell weight, and the use of ultralight and flexible packaging materials. These features make the described semi-fuel cells the ideal choice for powering underwater and air vehicles.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 1, 2008
    Inventors: Ian Kowalczyk, William Eppley, Mark Salomon, David Chua, Benjamin Meyer
  • Publication number: 20070259234
    Abstract: A metal-air semi-fuel cell is provided, preferably based on lithium anode and a fuel cell type air/oxygen electrode immersed in an aqueous neutral, alkali or acid solution. The lithium anode is comprised of the active metal and one or more separators protecting the anode from reacting with an aqueous solution. The outermost layer on the lithium electrode is a solid-state lithium-ion conducting glass-ceramic which is impervious to and stable towards aqueous solutions. The cathode is comprised of an air or oxygen fuel cell type electrode in contact with the aqueous solution. The lithium anode of this invention also can be replaced by other electroactive metals which react with water and acids, bases and neutral solutions, such as metals from Groups 1 and 2 of the Periodic Table of Elements in addition to Zn, Mg, and Al.
    Type: Application
    Filed: May 6, 2006
    Publication date: November 8, 2007
    Inventors: David Chua, Mark Salomon, Ian Kowalczyk
  • Patent number: 7141332
    Abstract: The present invention pertains to lightweight, hard and leakproof prismatic packaging structures for electrochemical devices and economical method of assembly and hermetic sealing of said structures by plastic layers attached to their metal walls. Metal welding is avoided and superior protection of lithium polymer cells and other cells is thus provided at lesser cost.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: November 28, 2006
    Inventors: Joseph B. Kejha, David Chua, Hsiu-Ping Lin
  • Publication number: 20060159999
    Abstract: The present invention pertains to electrochemical devices having a thin micro porous polytetrafluoroethylene separator bonded to their porous electrodes without special treatment of the separator and without additional adhesive layers. Structures of superior high energy density and power density are disclosed herein, as well as the methods of their assembly and automated production.
    Type: Application
    Filed: March 18, 2006
    Publication date: July 20, 2006
    Inventors: Joseph Kejha, David Chua, Hsiu-Ping Lin
  • Publication number: 20060112539
    Abstract: The present invention pertains to hybrid lithium-ion based electrochemical devices having a thin microporous polymeric separator bonded to their porous electrodes without special treatment of the separator and without additional adhesive layers. Structures of superior high energy density and power density are disclosed herein, as well as the methods of their assembly and automated production.
    Type: Application
    Filed: January 13, 2006
    Publication date: June 1, 2006
    Inventors: Joseph Kejha, David Chua, Hsiu-Ping Lin
  • Publication number: 20040018425
    Abstract: The present invention pertains to lightweight, hard and leakproof prismatic packaging structures for electrochemical devices and economical method of assembly and hermetic sealing of said structures by plastic layers attached to their metal walls. Metal welding is avoided and superior protection of lithium polymer cells and other cells is thus provided at lesser cost.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Joseph B. Kejha, David Chua, Hsiu-Ping Lin
  • Publication number: 20030027051
    Abstract: An economical manufacturing method and structure of electrodes for lithium based electrochemical devices, such as batteries and capacitors, which method results in the electrodes having various metal foil or grid current collectors embedded in the middle of their thickness by continuous dipping of said collectors in an electrode slurry, which is then solidified. The electrodes have superior performance and low resistance, due to short electron's travel to the collector, excellent adhesion of the electrode material to the grid, and uniform thickness at unlimited width. The method also includes additional steps and treatments to produce high quality electrodes.
    Type: Application
    Filed: July 23, 2001
    Publication date: February 6, 2003
    Inventors: Joseph B. Kejha, David Chua, Hsiu-Ping Lin
  • Publication number: 20030014859
    Abstract: The present invention pertains to hybrid lithium-ion based electrochemical devices having a thin microporous polymeric separator bonded to their porous electrodes without special treatment of the separator and without additional adhesive layers. Structures of superior high energy density and power density are disclosed herein, as well as the methods of their assembly and automated production.
    Type: Application
    Filed: April 9, 2002
    Publication date: January 23, 2003
    Inventors: Joseph B. Kejha, David Chua, Hsiu-Ping Lin