Patents by Inventor John P. Powell

John P. Powell 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).

  • BRIGHTNESS LEVEL ADJUSTMENT OF A LIGHTED DISPLAY DEVICE
    Publication number: 20120013583
    Abstract: A lighted display device that includes a display device, a backlight device and an electrical delay circuit. The backlight device is disposed proximate the display device and configured to emit light directed to the display device. The ambient light sensor is configured to generate a signal to adjust a brightness level of the light from the backlight device based on a change in input ambient light. The electrical delay circuit is configured to apply a fixed, non-user configurable time delay to delay the adjustment of the brightness level of the light from the backlight.
    Type: Application
    Filed: December 11, 2009
    Publication date: January 19, 2012
    Inventors: John P. Powell, Jeffrey A. Lev
  • Display brightness control method and apparatus for conserving battery power
    Patent number: 6731274
    Abstract: A method and apparatus for reducing display brightness on a portable computer when a user switches from an AC adapter to a battery power source provide battery power conservation. The reduction in display brightness is performed gradually so that a sudden brightness drop is not detected by the user. The display brightness reduction is preferably performed sufficiently gradually so that the reduction in brightness is virtually unnoticeable to the human eye.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: May 4, 2004
    Assignee: Gateway, Inc.
    Inventor: John P. Powell
  • Display brightness control method and apparatus for conserving battery power
    Publication number: 20030193472
    Abstract: A method and apparatus for reducing display brightness on a portable computer when a user switches from an AC adapter to a battery power source provide battery power conservation. The reduction in display brightness is performed gradually so that a sudden brightness drop is not detected by the user. The display brightness reduction is preferably performed sufficiently gradually so that the reduction in brightness is virtually unnoticeable to the human eye.
    Type: Application
    Filed: May 15, 2003
    Publication date: October 16, 2003
    Inventor: John P. Powell
  • Display brightness control method and apparatus for conserving battery power
    Patent number: 6618042
    Abstract: A method and apparatus for reducing display brightness on a portable computer when a user switches from an AC adapter to a battery power source provide battery power conservation. The reduction in display brightness is performed gradually so that a sudden brightness drop is not detected by the user. The display brightness reduction is preferably performed sufficiently gradually so that the reduction in brightness is virtually unnoticeable to the human eye.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: September 9, 2003
    Assignee: Gateway, Inc.
    Inventor: John P. Powell