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:
Dec. 05, 2023
Filed:
Jul. 30, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Yuma Koizumi, Tokyo, JP;
Shoichiro Saito, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
Erroneous detection of erroneously determining a normal sound to be anomalous is suppressed. A registered normal sound detection apparatuscalculates anomaly score of an observed signal. A feature extraction unitextracts a feature amount with a fixed-length from a time-series acoustic signal with an arbitrary length. An anomaly score calculation unitcorrects the anomaly score calculated from the observed signal so that the higher similarity score between the observed signal and a registered normal sound is, the smaller a value of the anomaly score is. The anomaly score calculation unitcalculates the similarity score by a similarity score function learned by using the feature amount extracted from the time-series acoustic signal including at least a normal sound by the feature extraction unit