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. 03, 2015
Filed:
Jul. 30, 2010
Teruyuki Kato, Tokyo, JP;
Yukihiro Terada, Nankoku, JP;
Toshihide Miyake, Osaka, JP;
Haruhiko Yoshida, Osaka, JP;
Teruyuki Kato, Tokyo, JP;
Yukihiro Terada, Nankoku, JP;
Toshihide Miyake, Osaka, JP;
Haruhiko Yoshida, Osaka, JP;
Hitachi Zosen Corporation, Osaka, JP;
The University of Tokyo, Tokyo, JP;
Institute of National Colleges of Technology, Japan, Tokyo, JP;
Abstract
A method for measuring sea waves includes: transmitting ultrasonic waves from an ultrasonic transmitterprovided on a buoyinto the sea, and receiving the ultrasonic waves from three transponderson the seabed together with the time signals; detecting distances between the transpondersand the ultrasonic transmitterbased on the propagation time of the ultrasonic waves; high-pass filtering the distance data to extract a short-term fluctuation component; preparing and solving linear equations to determine the displacement in the height direction of the short-term fluctuation component and obtain a wave height.