Patents by Inventor Walter C. Roehr, Jr.

Walter C. Roehr, Jr. 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).

  • Nationwide communication system
    Patent number: 5634198
    Abstract: A two-way communication system for communication between a system network and a mobile unit. The system network includes a plurality of base transmitters and base receivers included in the network. The base transmitters are divided into zonal assignments and broadcast in simulcast using multi-carrier modulation techniques. The system network controls the base transmitters to broadcast in simulcast during both systemwide and zonal time intervals. The system network dynamically alters zone boundaries to maximize information throughput. The preferred mobile unit includes a noise detector circuit to prevent unwanted transmissions. The system network further provides an adaptive registration feature for mobile units which controls the registration operations by the mobile units to maximize information throughput.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: May 27, 1997
    Assignee: Destineer Corporation
    Inventors: Dennis W. Cameron, Walter C. Roehr, Jr., Jai P. Bhagat, Masood Garahi, William D. Hays, David W. Ackerman
  • Method and system for efficiently providing two way communication between a central network and mobile unit
    Patent number: 5590403
    Abstract: A two-way communication system for communication between a system network and a mobile unit. The system network includes a plurality of base transmitters and base receivers included in the network. The base transmitters are divided into zonal assignments and broadcast in simulcast using multi-carrier modulation techniques. The system network controls the base transmitters to broadcast in simulcast during both systemwide and zonal time intervals. The system network dynamically alters zone boundaries to maximize information throughput. The preferred mobile unit includes a noise detector circuit to prevent unwanted transmissions. The system network further provides an adaptive registration feature for mobile units which controls the registration operations by the mobile units to maximize information throughput.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: December 31, 1996
    Assignee: Destineer Corporation
    Inventors: Dennis W. Cameron, Walter C. Roehr, Jr., Rade Petrovic, Jai P. Bhagat, Masood Garahi, William D. Hays, David W. Ackerman