Patents by Inventor Miikka Leskinen

Miikka Leskinen 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).

  • Patent number: 7816838
    Abstract: A system and method for measuring absolute pressure applied to a piezoelectric element by measuring a transition time of a voltage pulse applied to a piezoelectric element. The transition time (such as the rise time and/or fall time of the voltage pulse) is affected by the capacitance of the piezoelectric element, which in turn is affected by the amount of pressure currently being applied to the piezoelectric element. The system may also provide haptic feedback via the same piezoelectric element.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: October 19, 2010
    Assignee: Nokia Corporation
    Inventors: Miikka Leskinen, Jukka Jalkanen, Turo Keski-Jaskari
  • Publication number: 20090146533
    Abstract: A system and method for measuring absolute pressure applied to a piezoelectric element by measuring a transition time of a voltage pulse applied to a piezoelectric element. The transition time (such as the rise time and/or fall time of the voltage pulse) is affected by the capacitance of the piezoelectric element, which in turn is affected by the amount of pressure currently being applied to the piezoelectric element. The system may also provide haptic feedback via the same piezoelectric element.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 11, 2009
    Applicant: Nokia Corporation
    Inventors: Miikka Leskinen, Jukka Jalkanen, Turo Keski-Jaskari