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. 14, 2026
Filed:
May. 17, 2022
Audio-technica Corporation, Machida, JP;
Daisuke Yoneyama, Machida, JP;
AUDIO-TECHNICA CORPORATION, Machida, JP;
Abstract
Provided is a noise-cancelling headphone device that prevents deterioration of reproduction frequency characteristics in a high-frequency band while preventing reduction in the reproduction output in the low-frequency band. The proposed technology is a noise-cancelling headphone device, including a speaker unit provided with a dome-shaped diaphragm having a center dome and a sub-dome, a microphone that detects ambient noise incident into the speaker unit, a baffle plate supporting the speaker unit and provided with sound emission holes to radiate reproduction sound emitted from the speaker unit, and a signal processing circuit to generate noise cancellation signal generated based on the ambient noise detected by the microphone, wherein an acoustic resistance member is provided at the position facing the sub-dome of the dome diaphragm.