Patents by Inventor Fritz Rudolf Gfeller

Fritz Rudolf Gfeller 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).

  • Media access control protocols in a wireless communication network supporting multiple transmission rates
    Patent number: 5818826
    Abstract: In a wireless multi-rate communications system, a method for extending the range of communications in the system by dividing the physical layer frame into two portions: a robust header portion and a body, where the repetition rate of the data symbols in the header portion is greater than or equal to the repetition rate of the data symbols in the body of the frame. In this way the header can be received and decoded by all stations in the system with a high probability, while the body of the frame need only be received and decoded by the destination station to which the body of the frame is intended to be received and decoded.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: October 6, 1998
    Assignee: International Business Machines Corporation
    Inventors: Fritz Rudolf Gfeller, Peter Dirk Hortensius, Patrick K. Kam, Parviz Kermani, Danny N. McKay, Mahmoud Naghshineh, Claus Michael Olsen, Babak Rezvani