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:
Sep. 29, 2026
Filed:
Mar. 26, 2024
Rohm Co., Ltd., Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
The present disclosure provides a signal processing device. The signal processing device includes: a transmission signal generation unit, configured to generate a transmission signal for a transmitted wave of sound wave; a reception signal output unit, configured to output a received signal based on a received wave of sound wave; and a reflected wave detection unit. The reflected wave detection unit is configured to detect a first reflected wave of the transmitted wave that may be included in the received wave based on a first timing when an envelope detection signal, which is a signal obtained by envelope detection of an absolute value of the received signal during a reverberation period in which a reverberation of the transmitted wave remains, is lower than a first threshold value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile