Patents by Inventor Risto Johannes Ronkka

Risto Johannes Ronkka 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: 6002387
    Abstract: In the information transfer method the information (I) is collected in the memory (55) of a pointing pen (51). A selected point on the display (43) is pressed with the tip of the pen (51), whereby a frequency change of the resonant circuit (42/52) indicates the contact, and a change in the resonance signal's strength in the receiving circuit determines the position of the pen. Then the oscillation of a second resonant circuit (43/53) is modulated with the information (I) in the memory. The received and demodulated (47) and possibly otherwise processed (48) signal is then presented on the display (43). With this method the user can transfer scanned information directly to the display of a pen computer or a mobile phone for further processing.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: December 14, 1999
    Assignee: Nokia Mobile Phones, Ltd.
    Inventors: Risto Johannes Ronkka, Lasse Siitonen