Patents by Inventor Janusz Ryszard Hyziak

Janusz Ryszard Hyziak 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 apparatus for extending coverage in a cellular communication system
    Patent number: 6125279
    Abstract: Method for transmitting data packets between base site and designated mobile unit outside coverage area of base site comprises: identifying data packet; transmitting data packet to unit along calculated traffic path; determining if unit is designated unit; and retransmitting data packet from that unit until receiving unit is designated unit.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: September 26, 2000
    Assignee: Motorola, Inc.
    Inventors: Janusz Ryszard Hyziak, Valentin Oprescu-Surcobe, Prakash Panjwani