Patents by Inventor Robert W. Dijkerman

Robert W. Dijkerman 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).

  • Method for controlling exchanges of frames between a control unit and at least one radio station, and control unit for implementing the method
    Publication number: 20030219005
    Abstract: Each radio station (2) has a receiving window associated with each frame, positioned according to a time marker inserted in the said frame by a control unit (1). The frames include data frames (5), in which the time marker is inserted for synchronization with a radio terminal (4), and signalling frames. Each radio station indicates a data frame received outside the associated receiving window, and responds to a signalling frame by returning to the control unit a synchronization parameter representing a time of arrival of the said signalling frame. In a period of transmission of successive data frames: signalling frames are transmitted to each radio station simultaneously; returned synchronization parameters are processed; and times of transmission of successive data frames are controlled according to the processed parameters.
    Type: Application
    Filed: April 25, 2003
    Publication date: November 27, 2003
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Olivier Isnard, Frederic Ratovelomanana, Jean-Marie Calmel, Robert W. Dijkerman, Shedman Tam, Quanying Peng, Jian G. Zhao