Patents by Inventor Olli Jaakkola

Olli Jaakkola 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).

  • Reference oscillator frequency stabilization
    Patent number: 7248128
    Abstract: Method for stabilizing the frequency of a MEMS (Micro Electro Mechanical Systems) reference oscillator, and a MEMS reference oscillator, wherein the method comprises following steps: using two or more MEMS components, wherein each MEMS component is characterized by a set of properties, and selectively combining the desired properties from the MEMS components.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: July 24, 2007
    Assignee: Nokia Corporation
    Inventors: Tomi Mattila, Aarne Oja, Olli Jaakkola, Heikki Seppā
  • Multi-mode frequency synthesizer with temperature compensation
    Patent number: 7145402
    Abstract: Method for stabilizing the frequency of a frequency synthesizer by means of a reference oscillator unit coupled to a voltage controlled oscillator (VCO) and a frequency synthesizer, wherein the synthesizer is provided with a phase locked loop (PLL) to stabilize the operation of the voltage controlled oscillator, wherein the reference oscillator unit is a MEMS (MicroElectromechanicalSystems) reference oscillator unit, the temperature of the MEMS reference oscillator unit is measured, and the output frequency is corrected according to the measured temperature by using a frequency/temperature function.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: December 5, 2006
    Assignee: Nokia Corporation
    Inventors: Tomi Mattila, Olli Jaakkola, Ville Kaajakari, Aarne Oja, Heikki Seppä
  • Frequency synthesizer
    Publication number: 20050285692
    Abstract: Method for stabilizing the frequency of a frequency synthesizer by means of a reference oscillator unit coupled to a voltage controlled oscillator (VCO) and a frequency synthesizer, wherein the synthesizer is provided with a phase locked loop (PLL) to stabilize the operation of the voltage controlled oscillator, wherein the reference oscillator unit is a MEMS (MicroElectromechanicalSystems) reference oscillator unit, the temperature of the MEMS reference oscillator unit is measured, and the output frequency is corrected according to the measured temperature by using a frequency/temperature function.
    Type: Application
    Filed: June 20, 2005
    Publication date: December 29, 2005
    Inventors: Tomi Mattila, Olli Jaakkola, Ville Kaajakari, Aarne Oja, Heikki Seppa
  • Reference oscillator frequency stabilization
    Publication number: 20050184822
    Abstract: Method for stabilizing the frequency of a MEMS (Micro Electro Mechanical Systems) reference oscillator, and a MEMS reference oscillator, wherein the method comprises following steps: using two or more MEMS components, wherein each MEMS component is characterized by a set of properties, and selectively combining the desired properties from the MEMS components.
    Type: Application
    Filed: February 2, 2005
    Publication date: August 25, 2005
    Inventors: Tomi Mattila, Aarne Oja, Olli Jaakkola, Heikki Seppa
  • Method for improving the performance of an rfid transponder
    Publication number: 20040246102
    Abstract: The present publication discloses a method for implementing a remote identification device (RFID). According to the method, a reader device sends a modulated carrier to a remote identification device or a remote sensor (20). According to the invention, a reply signal synchronized with the modulation of the carrier signal received by the remote identification device or remote sensor (20) is generated using the energy of the incident carrier signal.
    Type: Application
    Filed: July 7, 2004
    Publication date: December 9, 2004
    Inventors: Olli Jaakkola, Timo Varpula