Patents by Inventor Risto Helkio

Risto Helkio 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).

  • Portable electronic device memory availability
    Patent number: 7523869
    Abstract: A portable electronic device including a memory having a first image file; a system for transferring a copy of the first image file to a second device; and a system for permanently converting the first image file to a different second image file. The system for permanently converting is based, at least partially, upon the copy of the first image file being transferred to the second device by the system for transferring. The second image file cannot be converted back to the first image file by the portable electronic device.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: April 28, 2009
    Assignee: Nokia Corporation
    Inventors: Risto Helkiö, Jukka-Pekka Salmenkaita, Pirjo Moilanen
  • Portable electronic device memory availability
    Publication number: 20060226232
    Abstract: A portable electronic device including a memory having a first image file; a system for transferring a copy of the first image file to a second device; and a system for permanently converting the first image file to a different second image file. The system for permanently converting is based, at least partially, upon the copy of the first image file being transferred to the second device by the system for transferring. The second image file cannot be converted back to the first image file by the portable electronic device.
    Type: Application
    Filed: April 6, 2005
    Publication date: October 12, 2006
    Inventors: Risto Helkio, Jukka-Pekka Salmenkaita, Pirjo Moilanen