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.

Date of Patent:
Nov. 18, 2025

Filed:

Feb. 14, 2023
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Atsuro Oonishi, Kawasaki, JP;

Takehiro Hato, Tokyo, JP;

Hideki Ito, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/374 (2019.01); G01R 31/382 (2019.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/374 (2019.01); G01R 31/382 (2019.01);
Abstract

In a state estimation method of an embodiment, from time series data representing a time change of a main physical quantity concerning an estimation target, a local maximum and minimum values of the main physical quantity, and an inter-extreme-value time from an extreme value to the next extreme value are extracted. In the state estimation method, a state change speed of the estimation target is calculated based on relationship data representing the relationship of the state change speed with the local maximum and minimum values and the extracted local maximum and minimum values. In the state estimation method, a state change amount of the estimation target is calculated for each inter-extreme-value time based on the extracted inter-extreme-value time and the calculated state change speed.


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