Patents by Inventor Mark Douglas Grebe

Mark Douglas Grebe 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).

  • Pager supported traffic signal controller
    Patent number: 5973616
    Abstract: A local traffic signal controller (3) is interfaced to a conventional pager (16) to provide for centralized control of the traffic signals controlled by the local controller. The central controller (7) may use the existing pager infrastructure (12) to provide for the transfer of program control information to local controllers. A two-way pager may be utilized to provide for the return of information from the local traffic signal controller. Such return information may include indications of lamp failures, traffic pattern information and other status or traffic related information.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: October 26, 1999
    Assignee: Motorola, Inc.
    Inventors: Mark Douglas Grebe, Thomas Michael Fox