Patents by Inventor Marcel Rupf

Marcel Rupf 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).

  • Packet data transmission in code-division multiple access communication systems
    Patent number: 6181683
    Abstract: A system and method for the wireless transmission of data packets in a code division multiple access communication system wherein one of the code division multiple access channels (PRCH) is used in a time-shared fashion for the transmission of the data packets from several transmitting stations (MSy, MSz) to a receiving station (BS). A request is sent from a transmitting station (MSy) to the corresponding receiving station (BS) of the communication system indicating the destination address to which data packet(s) are to be routed. Then, registering the transmitting station (MSy) and assigning an unique virtual connection identifier (VCIy) to it. Next, the transmitting station (MSy) is attached to the code division multiple access channel (PRCH) used for the transmission of data packets.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: January 30, 2001
    Assignee: International Business Machines Corp.
    Inventors: Pierre R. Chevillat, Roy D. Cideciyan, Marcel Rupf, Wolfgang H. Schott