Patents by Inventor Walt T. Lifsey

Walt T. Lifsey 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).

  • Active stylus with energy harvesting
    Patent number: 8872792
    Abstract: In one embodiment, a stylus includes one or more electrodes and one or more computer-readable non-transitory storage media embodying logic for transmitting signals wirelessly from the stylus to a device through a touch sensor of the device. The stylus has one or more sensors for kinetic, thermal, solar or electric energy harvesting from an environment of the stylus or from the stylus itself.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: October 28, 2014
    Assignee: Atmel Corporation
    Inventors: Vemund Kval Bakken, Trond Jarle Pedersen, Esat Yilmaz, Shahrooz Shahparnia, Walt T. Lifsey, Kishore Sundara-Rajan
  • Active Stylus with Energy Harvesting
    Publication number: 20130106770
    Abstract: In one embodiment, a stylus includes one or more electrodes and one or more computer-readable non-transitory storage media embodying logic for transmitting signals wirelessly from the stylus to a device through a touch sensor of the device. The stylus has one or more sensors for kinetic, thermal, solar or electric energy harvesting from an environment of the stylus or from the stylus itself.
    Type: Application
    Filed: February 22, 2012
    Publication date: May 2, 2013
    Applicant: Atmel Corporation
    Inventors: Vemund Kval Bakken, Trond Jarle Pedersen, Esat Yilmaz, Shahrooz Shahparnia, Walt T. Lifsey, Kishore Sundara-Rajan