Patents by Inventor Taavi Hirvonen

Taavi Hirvonen 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).

  • Antenna beam
    Patent number: 9634388
    Abstract: A fixed phase shift for each of a plurality of radio frequency signal components directed to or received from a plurality of antenna elements is formed in a phase shifter. A desired antenna beam pattern with at least one grating lobe is formed on the basis of the phase-shifted radio frequency signal components of the antenna elements in a predefined antenna structure.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: April 25, 2017
    Assignee: ELEKTROBIT WIRELESS COMMUNICATIONS OY
    Inventors: Juha Ylitalo, Taavi Hirvonen
  • ANTENNA BEAM
    Publication number: 20110188418
    Abstract: A fixed phase shift for each of a plurality of radio frequency signal components directed to or received from a plurality of antenna elements is formed in a phase shifter. A desired antenna beam pattern with at least one grating lobe is formed on the basis of the phase-shifted radio frequency signal components of the antenna elements in a predefined antenna structure.
    Type: Application
    Filed: October 13, 2008
    Publication date: August 4, 2011
    Applicant: ELEKTROBIT WIRELESS COMMUNICATIONS OY
    Inventors: Juha Ylitalo, Taavi Hirvonen
  • Method and arrangement for testing a radio device
    Patent number: 7680463
    Abstract: A method and an arrangement for testing a radio device without radiation losses are provided. The arrangement comprises a waveguide closed at both its ends and comprising a holder arranged to hold the radio device at least partly inside the waveguide in such a manner that the radiating part of the radio device remaining outside the waveguide is entirely inside the holder. The arrangement also comprises at least one coupling inside the waveguide for transmission and reception of a radio-frequency signal.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: March 16, 2010
    Assignee: JOT Automation Oy
    Inventors: Taavi Hirvonen, Ari Immonen, Pekka Jakkula
  • Method for microwave measurement, measuring device and oscillator
    Patent number: 7616009
    Abstract: An object to be measured is measured using microwave radiation. Oscillation energy is generated by means of a feedback coupled active unit. The solution involves generating resonance into at least one oscillator, each oscillator comprising at least one open resonator, each resonator being coupled to at least one active unit, by using the object to be measured as a functional part of the resonator, the object to be measured causing a resonance frequency dependent on the location of a surface of the object to be measured to be generated in each oscillator. A measurement part determines at least one characteristic of the object to be measured on the basis of the resonance frequency of each oscillator.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: November 10, 2009
    Assignee: Senfit Oy
    Inventors: Pekka Jakkula, Taavi Hirvonen, Juha Heikkinen, Taisto Soikkeli, Olavi Hyry, Jarmo Karhu
  • Method for Microwave Measurement, Measuring Device and Oscillator
    Publication number: 20070268024
    Abstract: An object to be measured is measured using microwave radiation. Oscillation energy is generated by means of a feedback coupled active unit. The solution involves generating resonance into at least one oscillator, each oscillator comprising at least one open resonator, each resonator being coupled to at least one active unit, by using the object to be measured as a functional part of the resonator, the object to be measured causing a resonance frequency dependent on the location of a surface of the object to be measured to be generated in each oscillator. A measurement part determines at least one characteristic of the object to be measured on the basis of the resonance frequency of each oscillator.
    Type: Application
    Filed: September 19, 2005
    Publication date: November 22, 2007
    Inventors: Pekka Jakkula, Taavi Hirvonen, Juha Heikkinen, Taisto Soikkeli, Olavi Hyry, Jarmo Karhu
  • Method and arrangement for testing a radio device
    Publication number: 20060246843
    Abstract: A method and an arrangement for testing a radio device without radiation losses are provided. The arrangement comprises a waveguide closed at both its ends and comprising a holder arranged to hold the radio device at least partly inside the waveguide in such a manner that the radiating part of the radio device remaining outside the waveguide is entirely inside the holder. The arrangement also comprises at least one coupling inside the waveguide for transmission and reception of a radio-frequency signal.
    Type: Application
    Filed: December 19, 2003
    Publication date: November 2, 2006
    Inventors: Taavi Hirvonen, Ari Immonen, Pekka Jakkula