Patents by Inventor Leo Vaskelainen

Leo Vaskelainen 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).

  • Control of radiation pattern in wireless telecommunications system
    Patent number: 7236127
    Abstract: The invention relates to controlling of characteristics of radiation patterns in wireless telecommunications system, where radiation patterns are provided by antenna arrays, each antenna array comprising at least two independent antenna units, each antenna unit being associated with an antenna-unit-specific antenna signal. A control circuit for controlling the characteristics of radiation patterns comprises an antenna signal amplitude adjuster for adjusting a relative amplitude of at least two antenna-unit-specific antenna signals as a function of a phase shift between at least two radio frequency signals inputted into the antenna signal amplitude adjuster. The circuit further comprises an adjustable phase shifter for adjusting the phase shift between the at least two radio frequency signals inputted into the antenna signal amplitude adjuster.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: June 26, 2007
    Assignee: Nokia Corporation
    Inventors: Leo Vaskelainen, Kalevi Laukkanen
  • Control of radiation pattern in wireless telecommunications system
    Publication number: 20060267839
    Abstract: The invention relates to controlling of characteristics of radiation patterns in wireless telecommunications system, where radiation patterns are provided by antenna arrays, each antenna array comprising at least two independent antenna units, each antenna unit being associated with an antenna-unit-specific antenna signal. A control circuit for controlling the characteristics of radiation patterns comprises an antenna signal amplitude adjuster for adjusting a relative amplitude of at least two antenna-unit-specific antenna signals as a function of a phase shift between at least two radio frequency signals inputted into the antenna signal amplitude adjuster. The circuit further comprises an adjustable phase shifter for adjusting the phase shift between the at least two radio frequency signals inputted into the antenna signal amplitude adjuster.
    Type: Application
    Filed: August 25, 2005
    Publication date: November 30, 2006
    Inventors: Leo Vaskelainen, Kalevi Laukkanen