Patents by Inventor Frederick H. Rohles

Frederick H. Rohles 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 interactive communication between half-duplex and full-duplex systems
    Patent number: 7313103
    Abstract: A communication system (100) includes a first communication unit (101, 102, 103, 104) capable of communicating over a full-duplex persistent-connection link provided by a full-duplex network (105) and a second communication unit (151, 152) capable of communicating over a half-duplex dispatch link provided by a dispatch RF system (150). The system (100) also includes a dispatch gateway (120). The dispatch gateway (120) receives signals from a first communication unit (101, 102, 103, 104) over a full-duplex persistent link through a full-duplex network (105) and provides communication between the first communication unit and a single dispatch communication unit (151, 152) or a group of dispatch communication units (151, 152) over a half-duplex communication link through a dispatch RF system (150). The gateway operates in a manner so as to permit communication between full-duplex terminals (101, 102, 103, 104) and half-duplex terminals (151, 152).
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: December 25, 2007
    Assignee: Motorola, Inc.
    Inventors: Gregory W. Cox, Frederick H. Rohles, Jeffrey T. Eschbach, Jayanth P. Mysore
  • Method and apparatus for interactive communication between half-duplex and full-duplex systems
    Publication number: 20030224825
    Abstract: A communication system (100) includes a first communication unit (101, 102, 103, 104) capable of communicating over a full-duplex persistent-connection link provided by a full-duplex network (105) and a second communication unit (151, 152) capable of communicating over a half-duplex dispatch link provided by a dispatch RF system (150). The system (100) also includes a dispatch gateway (120). The dispatch gateway (120) receives signals from a first communication unit (101, 102, 103, 104) over a full-duplex persistent link through a full-duplex network (105) and provides communication between the first communication unit and a single dispatch communication unit (151, 152) or a group of dispatch communication units (151, 152) over a half-duplex communication link through a dispatch RF system (150). The gateway operates in a manner so as to permit communication between full-duplex terminals (101, 102, 103, 104) and half-duplex terminals (151, 152).
    Type: Application
    Filed: June 3, 2002
    Publication date: December 4, 2003
    Inventors: Gregory W. Cox, Frederick H. Rohles, Jeffrey T. Eschbach, Jayanth P. Mysore