04796191 is referenced by 162 patents and cites 7 patents.

A vehicle navigational system and method for tracking a vehicle, including a programmed computer, sensors for sensing the distance traveled and heading of the vehicle, and a stored map data base identifying a map of an area over which the vehicle is moving, in which the computer calculates and advances dead reckoned positions of the vehicle in response to distance and heading data, provides data identifying a contour of equal probability containing the dead reckoned positions and having a probability of containing the actual location of the vehicle, derives multiparameters from the map data base, and updates a given dead reckoned position and the contour using a highly developed vehicle navigational algorithm if a more probable dead reckoned position exists based upon the given dead reckoned position, the contour and the derived multi-parameters.

Title
Vehicle navigational system and method
Application Number
6/618041
Publication Number
4796191
Application Date
June 7, 1984
Publication Date
January 3, 1989
Inventor
George E Loughmiller Jr
Cupertino
CA, US
Marvin S White Jr
Palo Alto
CA, US
Alan C Phillips
Los Altos
CA, US
Kenneth A Milnes
Fremont
CA, US
Walter B Zavoli
Palo Alto
CA, US
Stanley K Honey
Newark
CA, US
Agent
Fliesler Dubb Meyer & Lovejoy
Assignee
ETAK
CA, US
IPC
G06F 15/50
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