Patents by Inventor Adam Dewhirst

Adam Dewhirst 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 of calculating signal propagation loss and creating a data base therefor
    Patent number: 6289203
    Abstract: A method for determining a final propagation loss of a signal transmitted from a transmitter (302) and received at a receiver (303) located in a proximity of a road (340) in a predefined area (350) includes calculating an environmental factor based on a transportation network information associated with predefined area (350), and determining the final propagation loss based on the environmental factor. A method of creating a data base used for calculating the propagation loss includes providing a preliminary data base, calculating a road density constant based on a road profile of predefined area (350), calculating a road constant based on a road classification profile of road (340), calculating the environmental factor by summing the road density constant, and the road constant, and modifying the preliminary data base according to the environmental factor to produce the data base.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: September 11, 2001
    Assignee: Motorola, Inc.
    Inventors: Jack Anthony Smith, John Douglas Reed, Adam Dewhirst