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:
Sep. 03, 2019
Filed:
Jan. 19, 2015
Mitsubishi Electric Corporation, Tokyo, JP;
Takashi Iwamoto, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A position and time calculator, based on a navigation satellite signal, calculates a position of a navigation satellite and a position and a time where an antenna receives the navigation satellite signal. An upper limit error determiner evaluates an upper limit of error caused in positioning a reception position of the antenna based on an amount obtained by multiplying a difference between the time calculated based on the navigation satellite signal and the time measured by a time measurer by a coefficient determined based on arrangement of navigation satellites, and information on the position on the track stored in a memory. A position determiner corrects the moved distance measured by the speed measurer based on the evaluation of the upper limit of error in positioning, and determines the position of the antenna.