Invention Grant
- Patent Title: Acoustic tube and acoustic reproduction apparatus
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Application No.: US16087227Application Date: 2017-03-17
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Publication No.: US10559294B2Publication Date: 2020-02-11
- Inventor: Tetsu Magariyachi , Yuhki Mitsufuji , Yu Maeno
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Wolf, Greenfield & Sacks, P.C.
- Priority: JP2016-072168 20160331
- International Application: PCT/JP2017/010867 WO 20170317
- International Announcement: WO2017/169886 WO 20171005
- Main IPC: H04R1/20
- IPC: H04R1/20 ; G10K11/22 ; H04R1/34

Abstract:
The present technique relates to an acoustic tube and an acoustic reproduction apparatus that can generate an evanescent wave at a lower cost. An acoustic tube includes an acoustic path longer than an external dimension of the acoustic tube and includes a plurality of opening portions or a slit-like opening portion. When a sound wave advances in the acoustic tube, sound waves are output from the plurality of opening portions or from a plurality of positions of the slit-like opening portion, and the sound waves are combined to form an evanescent wave. The present technique can be applied to an acoustic tube, an acoustic reproduction apparatus including the acoustic tube, and the like.
Public/Granted literature
- US20190051284A1 ACOUSTIC TUBE AND ACOUSTIC REPRODUCTION APPARATUS Public/Granted day:2019-02-14
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