Patents by Inventor Kari Olavi Vigelius

Kari Olavi Vigelius 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).

  • Switched mode power supply for a transmitter
    Patent number: 8289011
    Abstract: A switched mode power supply (SMPS) suitable for use with a transmitter is disclosed. A digital signal processing unit, using a reference voltage and a voltage signal from the power source as inputs, determines the duty cycle for a voltage converter, such as a buck-boost converter, of the SMPS.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: October 16, 2012
    Assignee: Nokia Corporation
    Inventor: Kari Olavi Vigelius
  • Switched mode power supply for a transmitter
    Publication number: 20090237064
    Abstract: A switched mode power supply (SMPS) suitable for use with a transmitter is disclosed. A digital signal processing unit, using a reference voltage and a voltage signal from the power source as inputs, determines the duty cycle for a voltage converter, such as a buck-boost converter, of the SMPS.
    Type: Application
    Filed: December 6, 2007
    Publication date: September 24, 2009
    Inventor: Kari Olavi Vigelius