Patents by Inventor Olaf Dicker

Olaf Dicker 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 and system for shifting frequency subsets to avoid base station interference in a frequency hopping cordless telephone system
    Patent number: 6249540
    Abstract: A method and system are disclosed for shifting frequency subsets to avoid base station interference in a frequency hopping cordless telephone system. A base station communicates with the handsets using frequencies selected from active frequency subsets. Frequency subsets are shifted to avoid interference by selecting frequencies initially from a defined number of active frequency subsets where each of the active frequency subsets is used before repeating an active frequency subset. The number of active frequency subsets is then changed for a defined period of time to change the period with which the active frequency subsets are used. After the defined period of time, the number of active frequency subsets is returned to the defined number of active frequency subsets.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: June 19, 2001
    Assignee: Siemens Information and Communication Network, Inc.
    Inventors: Olaf Dicker, Paulus Sastrodjojo, Uwe Sydon, Juergen Kockmann