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:
Aug. 09, 1994
Filed:
Nov. 12, 1991
Akihito Shibata, Yokohama, JP;
Hiroaki Tsuji, Yokohama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An object of the present invention is to provide precise calculation of a position and an orientation of a vehicle running or moving on route. Regarding the vehicle moving along a given route and with possible variations in the running orientation it is judged that the vehicle has moved substantially on a straight line when an integrated value of the orientation variations is smaller than a predetermined value. By obtaining a regression line of GPS receiving positions in the straight line, a precise orientation of the vehicle is obtained by adding a difference between the orientations of the straight line and the regression line to an original orientation of the vehicle.