Christopher A Matthews

US Patent:

20120025786, Feb 2, 2012

Filed:

Oct 27, 2009

Appl. No.:

13/259423

Inventors:

Stephen D. Heizer - Houston TX, US
Christopher K. Matthews - Spring TX, US
John A. Wozniak - Houston TX, US

International Classification:

H02J 7/00

US Classification:

320160

Abstract:

Methods and apparatus for recharging a rechargeable battery () having step charge requirements, where the charge current is tapered as successive voltage thresholds of the step charge requirements are approached. The battery () is programmed with a charge tapering algorithm, so that the battery charger () 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.

US Patent:

20170271905, Sep 21, 2017

Filed:

Jun 6, 2017

Appl. No.:

15/615584

Inventors:

- Houston TX, US
Jon G. Lloyd - Houston TX, US
John Wozniak - Houston TX, US
Christopher K. Matthews - Houston TX, US

International Classification:

H02J 7/00
H01M 10/44
H01M 10/46
H01M 10/48
H02J 7/04

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.

US Patent:

20150002082, Jan 1, 2015

Filed:

Apr 30, 2012

Appl. No.:

14/372097

Inventors:

Thomas P. Sawyers - Hampstead TX, US
John A. Wozniak - Houston TX, US
Christopher K. Matthews - Houston TX, US
Jon G. Lioyd - Cypress TX, US

Assignee:

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. - Houston TX

International Classification:

H02J 7/00

US Classification:

320107, 320162

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.

US Patent:

20140324626, Oct 30, 2014

Filed:

Dec 23, 2013

Appl. No.:

14/139468

Inventors:

Jonas Oscar Klink - White Plains NY, US
Jason Allen Fletchall - San Jose CA, US
Linh Nhat Vu Tran - San Francisco CA, US
Christopher Michael Matthews - San Jose CA, US

International Classification:

G06Q 30/06

US Classification:

705 268

Abstract:

A view item page that is descriptive of a current item may be displayed in response to a request to view a description of the current item. The view item page may include a control that is operable to display recommendations of further items similar to the current item that is described in the view item page. Upon detecting that a user has operated the control included in the view item page, the recommendations of the further items may be generated based on the current item described in the view item page. Moreover, the generated recommendations may be presented to the user that operated the control.