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:
Jul. 08, 2025
Filed:
Sep. 29, 2020
D&m Holdings, Inc., Kanagawa, JP;
Kazuhiko Yonemori, Kanagawa, JP;
D&M HOLDINGS, INC., Kanagawa, JP;
Abstract
[Problem] To provide a technology capable of comfortably enjoying audio content via multiple channels even in a noisy environment. [Solution] A wireless terminalis disposed at a listening point of a multi-channel audio device. The multi-channel audio deviceplays a multi-channel audio signal as audio playback signals of a plurality of channels, and outputs an audio playback signal for each channel from the corresponding speaker, and the wireless terminalcollects the environmental sound at the listening point, and transmits the sound collection signal to the multi-channel audio device. The multi-channel audio deviceidentifies, as a noise component, the difference between the sound collection signal received from the wireless terminaland the audio playback signals of the plurality of channels output from the plurality of speakers, generates a noise canceling signal with the opposite phase to the noise component, and outputs the noise canceling signal from any speaker