Patents by Inventor David J. Isbister

David J. Isbister 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).

  • Fast awake from low power mode
    Patent number: 8766919
    Abstract: An electronic device in a low power mode, for example an eBook reader device, may use a fast awake module to quickly update a display. The electronic device may receive an interrupt, begin to awaken, present a cached pre-rendered image on the display, and may resume the low power mode or pre-render additional images to refill the cache before resuming the low power mode.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: July 1, 2014
    Inventors: Manish Lachwani, Jay Michael Puckett, David Berbessou, James Samuel Bowen, David J. Isbister
  • Systems and methods for determining and managing the power remaining in a handheld electronic device
    Patent number: 7921309
    Abstract: Portable user devices, such as electronic book reader devices, may have a limited power supply. Power management techniques, such as current sensing, dynamic voltage measurement, and/or power state control may be used to manage power usage of such user devices.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: April 5, 2011
    Assignee: Amazon Technologies
    Inventors: David J. Isbister, Marshall Williams, Nicholas J. Vaccaro