Patents by Inventor Teuvo Heikkinen

Teuvo Heikkinen 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).

  • Mobile station with touch input having automatic symbol magnification function
    Patent number: 6073036
    Abstract: A wireless user station (10), such as a cellular telephone, is provided with a touch sensitive input device, such as a touch-sensitive display (20) or a touchpad (23). A display device displays a plurality of symbols. A first location of a tactile input is detected and displayed symbols in the vicinity of the first location of the tactile input are magnified to occupy a larger display area. Subsequently, a second location of the tactile input is detected, thereby identifying a new position of the user's fingertip. After the second location on the touch sensitive screen remains constant, or after the user lifts the fingertip, the second location of the tactile input is reported and associated with the selected symbol.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: June 6, 2000
    Assignee: Nokia Mobile Phones Limited
    Inventors: Teuvo Heikkinen, Petri Piippo, Harri Wikberg, Miika Silfverberg, Panu Korhonen, Harri Kiljander