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:
Jun. 16, 2026
Filed:
Jul. 02, 2024
Denso Corporation, Kariya-city, JP;
Tetsuto Kawai, Kariya-city, JP;
Kazuaki Mawatari, Kariya-city, JP;
DENSO CORPORATION, Kariya-city, JP;
Abstract
A sound conversion device includes a sound acquisition circuit that acquires the operation sound including abnormal sound as a sound pressure time signal that is a signal indicating a change in sound pressure intensity over time, a signal conversion circuit that converts a signal corresponding to the sound pressure time signal into a frequency characteristic indicating an intensity of sound pressure for each frequency including a human inaudible frequency band, obtains audible signal in which the frequency of the abnormal sound signal indicating the intensity of the sound pressure of the abnormal sound in the inaudible frequency band is changed to a human audible frequency band in the signal corresponding to the frequency characteristic, and output the audible signal as an audible sound signal that is a signal indicating a change in sound pressure intensity over time, and a speaker that generates sound based on the audible sound signal.