Patents by Inventor David Choy

David Choy 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).

  • Patent number: 10353407
    Abstract: The invention provides a method of demand management for fluid networks. The method includes the steps of providing a computer controlled fluid network for delivery of fluid to at least one customer (14), maintaining a real time database (16) within the computer controlled fluid network of predetermined parameters, requesting a flow rate and time of delivery of said fluid from the fluid network through a user interface (22) to a customer (20), determining, using predetermined parameters from the real time database (16), the availability (24) of providing delivery of fluid from the fluid network to the customer (14) based on hydraulic capacity of the fluid network, and, if the hydraulic capacity is available, calculating parameters (38) using the real time database (16) to deliver fluid to the customer (14) through the computer controlled fluid network.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: July 16, 2019
    Assignee: RUBICON RESEARCH PTY LTD.
    Inventors: David John Aughton, Sumith Choy
  • Publication number: 20180171405
    Abstract: The invention relates to methods of treating a patient suffering from an IL-33-mediated disorder, such as asthma, comprising administering to the patient an IL-33 axis binding antagonist based on the genotype of the /L1RL1gene, the genotype of a polymorphism in genomic vicinity to the IL-33 gene, the expression level of periostin or the expression level of soluble ST2. The invention further relates to methods of determining whether a patient is at increased risk of an IL-33-mediated disorder, as well as methods of determining whether a patient suffering from such a disorder is likely to respond to a treatment comprising an IL-33 axis binding antagonist, based on the genotype of the /L1RL1gene the genotype of a polymorphism in genomic vicinity to the IL-33 gene, the expression level of periostin or the expression level of soluble ST2.
    Type: Application
    Filed: November 10, 2015
    Publication date: June 21, 2018
    Inventors: Rajita KHOSLA, Vladimir RAMIREZ-CARROZZI, Tracy STATON, Brian YASPAN, Joseph ARRON, David CHOY, Amy DRESSEN
  • Publication number: 20160168640
    Abstract: The invention relates to methods of treating a patient suffering from an IL-33-mediated disorder, such as asthma, comprising administering to the patient an IL-33 axis binding antagonist based on the genotype of the IL1RL1 gene. The invention further relates to methods of determining whether a patient is at increased risk of an IL-33-mediated disorder, as well as methods of determining whether a patient suffering from such a disorder is likely to respond to a treatment comprising an IL-33 axis binding antagonist, based on the genotype of the IL1RL1 gene.
    Type: Application
    Filed: November 10, 2015
    Publication date: June 16, 2016
    Inventors: Rajita KHOSLA, Vladimir RAMIREZ-CARROZZI, Tracy STATON, Brian YASPAN, Joseph ARRON, David CHOY, Amy DRESSEN
  • Patent number: 8875222
    Abstract: A highly efficient access control system and method employing XACML standard based policies and rules provides high performance resource access control of information systems of large enterprises. The system and method extracts plain rules from the XACML policies, transforms the plain rules into atomic rules, and compresses and indexes the atomic rules for fast lookup and retrieval. Access requests are decomposed into atomic requests which are compressed using the same value mapping as the rules. Index keys derived from compressed atomic request triplets are used to look up applicable rules which are used to evaluate requests for access to information system resources.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: October 28, 2014
    Assignee: EMC Corporation
    Inventors: Lei Chang, Jeroen Van Rotterdam, David Choy
  • Patent number: 8568356
    Abstract: A communication device (CD) exchanges messages with an implantable infusion pump via telemetry such that commands are supplied thereto and operational information is obtained therefrom. The CD is controlled, at least in part, by a processor IC according to a software program operating therein and provides feedback to a user via a visual display, an audio alarm, and a vibrational alarm, and allows input from the user via a touch sensitive keypad. Certain input functions are restricted by password. The visual display includes an icon and fixed element display region and a bitmap display region. The fixed element display region includes time and date displays, battery and drug level displays that decrement, and a moving delivery state display. Various screens allow operational or log information to be displayed and/or user entry of commands. Program features when disabled are removed from a series of screen options that can be scrolled through.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: October 29, 2013
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Ronald J. Lebel, Varaz Shahmirian, Daniel Villegas, David Choy, Philip T. Weiss, Paul Meadows
  • Publication number: 20090203979
    Abstract: An electronic circuit for sensing an output of a sensor having at least one electrode pair and circuitry for obtaining and processing the sensor output. The electrode pair may be laid out such that one electrode is wrapped around the other electrode in a U-shaped fashion. The electronic circuitry may include, among other things, a line interface for interfacing with input/output lines, a rectifier in parallel with the line interface, a counter connected to the line interface and a data converter connected to the counter and the electrode pair. The data converter may be a current-to-frequency converter. In addition, the rectifier may derive power for the electronic circuit from communication pulses received on the input/output lines.
    Type: Application
    Filed: April 6, 2009
    Publication date: August 13, 2009
    Inventors: Wayne A. Morgan, David Choy, John C. Gord, Rajiv Shah
  • Publication number: 20060202859
    Abstract: A telemetered characteristic monitor system includes a remotely located data receiving device, a sensor for producing signal indicative of a characteristic of a user, and a transmitter device. The transmitter device includes a housing, a sensor connector, a processor, and a transmitter. The transmitter receives the signals from the sensor and wirelessly transmits the processed signals to the remotely located data receiving device. The processor coupled to the sensor processes the signals from the sensor for transmission to the remotely located data receiving device. The data receiving device may be a characteristic monitor, a data receiver that provides data to another device, an RF programmer for a medical device, a medication delivery device (such as an infusion pump), or the like.
    Type: Application
    Filed: December 30, 2005
    Publication date: September 14, 2006
    Inventors: John Mastrototaro, Edward Chernoff, David Choy, James Henke, Richard Purvis, Peter Hong
  • Publication number: 20060173444
    Abstract: A communication device (CD) exchanges messages with an implantable infusion pump via telemetry such that commands are supplied thereto and operational information is obtained therefrom. The CD is controlled, at least in part, by a processor IC according to a software program operating therein and provides feedback to a user via a visual display, an audio alarm, and a vibrational alarm, and allows input from the user via a touch sensitive keypad. Certain input functions are restricted by password. The visual display includes an icon and fixed element display region and a bitmap display region. The fixed element display region includes time and date displays, battery and drug level displays that decrement, and a moving delivery state display. Various screens allow operational or log information to be displayed and/or user entry of commands. Program features when disabled are removed from a series of screen options that can be scrolled through.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 3, 2006
    Applicant: Medtronic, Inc.
    Inventors: David Choy, Varaz Shahmirian
  • Publication number: 20050267550
    Abstract: A medical communication device and communication protocols. The medical device may include communication circuitry and a plurality of antennas connected to the communication circuitry. The plurality of antennas may be disposed in the medical device such that the medical device communicates in a plurality of directions. The medical device may communicate with an implantable device implanted with a patient. A protocol for communicating with the implantable device may include monitoring a first antenna in the medical device during a first time slot for a transmitted signal; monitoring a second antenna in the medical device during a second time slot for the transmitted signal after monitoring for the transmitted signal on the first antenna; and generating an acknowledgement when a signal is detected on the first antenna, second antenna or third antenna. The device may be powered by a secondary power supply during communication.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 1, 2005
    Inventors: Phillip Hess, Colin Chong, Ronnie Mounce, David Choy
  • Publication number: 20050262551
    Abstract: Access to system and user defined entities (objects, data items, or the like) is managed by a content manager. A privilege grants a user an ability to access system such controlled entities. An item is an atomic user data entity stored in the CM library server. A privileges table is used to store system and user defined privileges. A privilege is represented by a row in the table. Each privilege has a unique privilege code, with codes 0 to 999 reserved to store system-defined privileges and codes beyond 999 open for user-defined privileges thus allowing application specific privileges to be added without limit.
    Type: Application
    Filed: July 15, 2005
    Publication date: November 24, 2005
    Applicant: International Business Machines Corporation
    Inventors: An Chen, David Choy, Tawei Hu, Jy-Jine Lin, Kenneth Nelson, Yuping Wang, Alan Yang
  • Publication number: 20050056539
    Abstract: An electronic circuit for sensing an output of a sensor having at least one electrode pair and circuitry for obtaining and processing the sensor output. The electrode pair may be laid out such that one electrode is wrapped around the other electrode in a U-shaped fashion. The electronic circuitry may include, among other things, a line interface for interfacing with input/output lines, a rectifier in parallel with the line interface, a counter connected to the line interface and a data converter connected to the counter and the electrode pair. The data converter may be a current-to-frequency converter. In addition, the rectifier may derive power for the electronic circuit from communication pulses received on the input/output lines.
    Type: Application
    Filed: October 25, 2004
    Publication date: March 17, 2005
    Inventors: Wayne Morgan, David Choy, John Gord, Rajiv Shah
  • Patent number: 6809507
    Abstract: An electronic circuit for sensing an output of a sensor having at least one electrode pair and circuitry for obtaining and processing the sensor output. The electrode pair may be laid out such that one electrode is wrapped around the other electrode in a U-shaped fashion. The electronic circuitry may include, among other things, a line interface for interfacing with input/output lines, a rectifier in parallel with the line interface, a counter connected to the line interface and a data converter connected to the counter and the electrode pair. The data converter may be a current-to-frequency converter. In addition, the rectifier may derive power for the electronic circuit from communication pulses received on the input/output lines.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: October 26, 2004
    Assignee: Medtronic Minimed, Inc.
    Inventors: Wayne A. Morgan, David Choy, John C. Gord, Rajiv Shah
  • Publication number: 20030076082
    Abstract: An electronic circuit for sensing an output of a sensor having at least one electrode pair and circuitry for obtaining and processing the sensor output. The electrode pair may be laid out such that one electrode is wrapped around the other electrode in a U-shaped fashion. The electronic circuitry may include, among other things, a line interface for interfacing with input/output lines, a rectifier in parallel with the line interface, a counter connected to the line interface and a data converter connected to the counter and the electrode pair. The data converter may be a current-to-frequency converter. In addition, the rectifier may derive power for the electronic circuit from communication pulses received on the input/output lines.
    Type: Application
    Filed: December 28, 2001
    Publication date: April 24, 2003
    Inventors: Wayne A. Morgan, David Choy, John C. Gord, Rajiv Shah