Patents by Inventor Christopher K. Matthews

Christopher K. Matthews 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).

  • Energy storage charging from an adjustable power source
    Patent number: 10164444
    Abstract: An energy storage device includes an integrated fuel gauge that is operatively connected to the energy storage device. The fuel gauge evaluates an operating parameter of the energy storage device and dynamically determines a state of charge. The fuel gauge communicates a communication including a requested operating parameter to the charging component with the single communication line and the signal indicates to an operating system component a change of an energy storage device state. The signal is used to trigger an alert or interrupt that causes the operating system component to display the change of the energy storage state based on the signal.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: December 25, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Thomas P. Sawyers, Jon G. Lloyd, John Wozniak, Christopher K. Matthews
  • ENERGY STORAGE CHARGING FROM AN ADJUSTABLE POWER SOURCE
    Publication number: 20170271905
    Abstract: An energy storage device includes an integrated fuel gauge that is operatively connected to the energy storage device. The fuel gauge evaluates an operating parameter of the energy storage device and dynamically determines a state of charge. The fuel gauge communicates a communication including a requested operating parameter to the charging component with the single communication line and the signal indicates to an operating system component a change of an energy storage device state. The signal is used to trigger an alert or interrupt that causes the operating system component to display the change of the energy storage state based on the signal.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 21, 2017
    Inventors: Thomas P. Sawyers, Jon G. Lloyd, John Wozniak, Christopher K. Matthews
  • Energy storage charging from an adjustable power source
    Patent number: 9698618
    Abstract: An energy storage device includes an integrated fuel gauge that is operatively connected to the energy storage device. The fuel gauge evaluates an operating parameter of the energy storage device and dynamically determines a state of charge. The fuel gauge communicates a communication including a requested operating parameter to the charging component with the single communication line and the signal indicates to an operating system component a change of an energy storage device state. The signal is used to trigger an alert or interrupt that causes the operating system component to display the change of the enemy storage state based on the signal.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: July 4, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Thomas P. Sawyers, Jon G Lloyd, John A Wozniak, Christopher K Matthews
  • ENERGY STORAGE CHARGING FROM AN ADJUSTABLE POWER SOURCE
    Publication number: 20150084602
    Abstract: An energy storage device includes an integrated fuel gauge that is operatively connected to the energy storage device. The fuel gauge evaluates an operating parameter of the energy storage device and dynamically determines a state of charge. The fuel gauge communicates a communication including a requested operating parameter to the charging component with the single communication line and the signal indicates to an operating system component a change of an energy storage device state. The signal is used to trigger an alert or interrupt that causes the operating system component to display the change of the enemy storage state based on the signal.
    Type: Application
    Filed: April 30, 2012
    Publication date: March 26, 2015
    Inventors: Thomas P. Sawyers, Jon G. Lloyd, John A. Wozniak, Christopher K. Matthews
  • ENERGY STORAGE CHARGING FROM AN ADJUSTABLE POWER SOURCE
    Publication number: 20150002082
    Abstract: An energy storage device includes an integrated fuel gauge that is operatively connected to the energy storage device. The fuel gauge evaluates an operating parameter of the energy storage device and dynamically determines a state of charge. A charging component is coupled to the energy storage device with a single communication line. The fuel gauge communicates a communication including a requested operating parameter to the charging component with the single communication line according to a predetermined charge profile based on the state of charge determined.
    Type: Application
    Filed: April 30, 2012
    Publication date: January 1, 2015
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Thomas P. Sawyers, John A. Wozniak, Christopher K. Matthews, Jon G. Lioyd
  • BATTERY-CONTROLLED CHARGING OF A RECHARGEABLE BATTERY
    Publication number: 20120025786
    Abstract: Methods and apparatus for recharging a rechargeable battery (202) having step charge requirements, where the charge current is tapered as successive voltage thresholds of the step charge requirements are approached. The battery (202) is programmed with a charge tapering algorithm, so that the battery charger (208) need not be programmed with battery-specific information. The charge tapering algorithm is used in conjunction with the step charge requirements and a measurement of one or more properties of the battery to determine an appropriate charge current as a function of time.
    Type: Application
    Filed: October 27, 2009
    Publication date: February 2, 2012
    Inventors: Stephen D. Heizer, Christopher K. Matthews, John A. Wozniak