Patents Assigned to Mobile Information Systems
  • Method and apparatus for tracking vehicle location
    Patent number: 5428546
    Abstract: An method and apparatus for simultaneously displaying a raster map and vectorized street information corresponding to a vehicle position is provided. The system extracts information from a plurality of databases, including a mobile position database, a raster database and a vector database. The database information is interrelated by common latitude and longitude information. A graphical user interface displays the information in a format easily understood a dispatcher.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: June 27, 1995
    Assignee: Mobile Information Systems
    Inventors: Mukesh C. Shah, Sanjiv Prabhakaran