Patents by Inventor Timo Kurjenheimo

Timo Kurjenheimo 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).

  • Ground arrangement for a device using wireless data transfer
    Patent number: 6987486
    Abstract: The invention relates to a ground arrangement of a device using wireless data transfer. In order to improve the electric properties of the device and to minimize the SAR value of the device, at least one electrically conductive additional ground lead (73-75) is formed in the device in addition to the actual ground lead (72). In between the ground lead and the additional ground lead, a galvanic coupling is automatically established, when a predetermined switching criterion is fulfilled, and the aforementioned galvanic coupling is automatically released, when a predetermined release criterion is fulfilled. This enables one to change the ground configuration of an antenna such that it is as suitable as possible for the transmission and reception circumstances each time existing.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: January 17, 2006
    Assignee: Micro Cell, S.A., Luxembourg
    Inventors: Timo Kurjenheimo, Kari Räisänen
  • EMC- arrangement for a device employing wireless data transfer
    Patent number: 6891505
    Abstract: The invention relates to a terminal employing wireless data transfer, comprising an enclosure structure consisting of at least one enclosure part (30), (40), (50), (60), an antenna (80) and a feed conductor (92) for receiving a signal from the antenna and/or feeding a signal into the antenna. By applying the invention, a device construction is achieved that makes it possible to improve the EMC properties of the device in a simple way and to improve the electric performance of the antenna of the device, especially to increase the frequency band of the antenna.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: May 10, 2005
    Assignee: Flextronics ODM Luxembourg S.A., Zweigniederlassung Schweiz
    Inventors: Timo Kurjenheimo, Kari Räisänen
  • EMC- arrangement for a device employing wireless data transfer
    Publication number: 20040100412
    Abstract: The invention relates to a terminal employing wireless data transfer, comprising an enclosure structure consisting of at least one enclosure part (30), (40), (50), (60), an antenna (80) and a feed conductor (92) for receiving a signal from the antenna and/or feeding a signal into the antenna. By applying the invention, a device construction is achieved that makes it possible to improve the EMC properties of the device in a simple way and to improve the electric performance of the antenna of the device, especially to increase the frequency band of the antenna.
    Type: Application
    Filed: January 14, 2003
    Publication date: May 27, 2004
    Inventors: Timo Kurjenheimo, Kari Raisanen
  • Ground arrangement for a device using wireless data transfer
    Publication number: 20030076272
    Abstract: The invention relates to a ground arrangement of a device using wireless data transfer. In order to improve the electric properties of the device and to minimize the SAR value of the device, at least one electrically conductive additional ground lead (73-75) is formed in the device in addition to the actual ground lead (72). In between the ground lead and the additional ground lead, a galvanic coupling is automatically established, when a predetermined switching criterion is fulfilled, and the aforementioned galvanic coupling is automatically released, when a predetermined release criterion is fulfilled. This enables one to change the ground configuration of an antenna such that it is as suitable as possible for the transmission and reception circumstances each time existing.
    Type: Application
    Filed: September 13, 2002
    Publication date: April 24, 2003
    Inventors: Timo Kurjenheimo, Kari Raisanen