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:
Feb. 22, 2022
Filed:
Dec. 27, 2019
Furuno Electric Co., Ltd., Nishinomiya, JP;
Hiraku Nakamura, Osaka, JP;
Hiroyuki Toda, Nishinomiya, JP;
Naomi Fujisawa, Nishinomiya, JP;
Akihiro Hino, Kakogawa, JP;
FURUNO ELECTRIC COMPANY LIMITED, Nishinomiya, JP;
Abstract
The present disclosure is to calculate an estimated position with high precision. A course estimating deviceincludes an angular velocity calculating part, a horizontal ground speed calculating partand an estimated position calculating part. The angular velocity calculating partmeasures or calculates an angular velocity of a movable body. The horizontal ground speed calculating partcalculates a horizontal ground speed based on an attitude angle, a ground course, and a ground ship speed of the movable body. The estimated position calculating partcalculates an estimated position, based on a period of time from a current time point to an estimation time point, the horizontal ground speed, and an integration operation of the angular velocity.