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:
Apr. 21, 2009
Filed:
Sep. 26, 2006
Takao Akiyama, Tokyo, JP;
Masahiko Suzuki, Shizuoka, JP;
Tatsuya Sagiyama, Aichi, JP;
Teruo Yoshida, Shizuoka, JP;
Yoichi Funahashi, Aichi, JP;
Takao Akiyama, Tokyo, JP;
Masahiko Suzuki, Shizuoka, JP;
Tatsuya Sagiyama, Aichi, JP;
Teruo Yoshida, Shizuoka, JP;
Yoichi Funahashi, Aichi, JP;
Meidensha Corporation, Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A signal waveform analysis method includes: determining a trend component of an object signal by applying a zero-phase filter to the object signal; determining an oscillatory component of the object signal by removing the trend component from the object signal; determining a wavelet scalogram by performing a wavelet analysis on the oscillatory component; and determining an oscillation period of the object signal with which the wavelet scalogram indicates a maximum. The signal waveform analysis method is employed to evaluate vehicle dynamic characteristics.