Patents by Inventor Keijo Hyttinen

Keijo Hyttinen 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).

  • Communication method and a radio system
    Patent number: 8064396
    Abstract: The network system of an orthogonal frequency division multiplexing radio system measures a quality of a signal from a user terminal. At least one compared property of the signal is compared with a predetermined threshold. The comparison includes a comparison involving the measured quality. A number of sub-channels for the user terminal is decreased if each comparison operation indicates that a compared property is at the predetermined threshold or within a predetermined range of the threshold. A control signal about a decrease is transmitted to the user terminal. The user terminal transmits with the decreased number of sub-channels as a response to the control signal.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: November 22, 2011
    Assignee: Elektrobit Wireless Communications Oy
    Inventors: Keijo Hyttinen, Ville Rautiainen
  • Communication Method and a Radio System
    Publication number: 20090268625
    Abstract: The network system of an orthogonal frequency division multiplexing radio system measures a quality of a signal from a user terminal. At least one compared property of the signal is compared with a predetermined threshold. The comparison includes a comparison involving the measured quality. A number of sub-channels for the user terminal is decreased if each comparison operation indicates that a compared property is at the predetermined threshold or within a predetermined range of the threshold. A control signal about a decrease is transmitted to the user terminal. The user terminal transmits with the decreased number of sub-channels as a response to the control signal.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 29, 2009
    Applicant: ELEKTROBIT WIRELESS COMMUNICATIONS OY
    Inventors: Keijo Hyttinen, Ville Rautiainen