Invention Grant
- Patent Title: Noise-cancelling headphone
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Application No.: US15952779Application Date: 2018-04-13
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Publication No.: US10249287B2Publication Date: 2019-04-02
- Inventor: Koji Otsuka , Yumi Shimazaki , Daisuke Yoneyama
- Applicant: Kabushiki Kaisha Audio-Technica
- Applicant Address: JP Tokyo
- Assignee: KABUSHIKI KAISHA AUDIO-TECHNICA
- Current Assignee: KABUSHIKI KAISHA AUDIO-TECHNICA
- Current Assignee Address: JP Tokyo
- Agency: W&C IP
- Priority: JP2017-119455 20170619
- Main IPC: H04R1/10
- IPC: H04R1/10 ; H04R5/027 ; G10K11/178

Abstract:
A headphone includes a feedback microphone that receives a front air chamber sound including an external sound, the feedback microphone being provided on a front air chamber side, a driver unit that emits a noise-canceling sound into the front air chamber, the noise-canceling sound canceling at least a part of the sound included in the front air chamber sound received by the feedback microphone, a balanced microphone that receives the noise-canceling sound emitted from the driver unit, the balanced microphone being provided in a region on a side of the driver unit opposite the front air chamber, and a sound generating part that generates the noise-canceling sound by adding a signal based on the noise-canceling sound received by the balanced microphone to a signal based on the front air chamber sound received by the feedback microphone.
Public/Granted literature
- US20180366100A1 Headphone Public/Granted day:2018-12-20
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