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:
Oct. 26, 1993
Filed:
Sep. 10, 1991
Applicant:
Inventor:
Seiichiro Hirata, Sanda, JP;
Assignee:
Mitsubishi Denki K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364449 ; 364450 ; 342357 ;
Abstract
An on-board vehicle position detector includes a dead reckoning position detector 4 and a GPS receiver 6, the outputs of which are stored in the dead reckoner data memory unit 8 and the GPS data memory unit 7, respectively, at a predetermined sampling period. Usually, the position of the vehicle is determined on the basis of the data obtained via the GPS receiver 6. When, however, the vehicle travel distance between two successive sampling times as determined via the GPS receiver 6 becomes abnormally large, the position data of the dead reckoning position detector 4 is selected.