The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 1976
Filed:
Aug. 22, 1975
Applicant:
Inventors:
Ronald Arthur Tyler, Chelmsford, EN;
Luigi DE Tullio, Chelmsford, EN;
Assignee:
The Marconi Company Limited, Chelmsford, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ; G01S / ; G08G / ;
U.S. Cl.
CPC ...
340 23 ; 23515024 ; 325 53 ; 343 / ; 3431 / ;
Abstract
A vehicle location system for vehicles travelling over a predetermined route in which the vehicle sends to a base station information concerning the distance travelled from a predetermined starting point and the turns made, from which information the base station computes the route between road junctions, on which the vehicle is travelling.