Invention Grant
- Patent Title: Sound emission and collection device
- Patent Title (中): 声音发射和收集装置
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Application No.: US13544002Application Date: 2012-07-09
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Publication No.: US09049504B2Publication Date: 2015-06-02
- Inventor: Toshiaki Ishibashi
- Applicant: Toshiaki Ishibashi
- Applicant Address: JP
- Assignee: YAMAHA CORPORATION
- Current Assignee: YAMAHA CORPORATION
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2005-364617 20051219; JP2005-368052 20051221; WOPCT/JP2006/325063 20061215
- Main IPC: H04R3/00
- IPC: H04R3/00 ; H04R1/40

Abstract:
A sound emission and collection device has a plurality of speakers (11) and a plurality of microphones. The speakers each have a sound emission surface arranged on the side surface of a case (1) so that sound can be emitted in all circumferential directions. The microphones (12) each are arranged with the sound collection direction set in the center direction of the case (1). The microphone (12) and the speaker (11) have directivities opposing to each other to minimize a wraparound sound from the speaker (11) to the microphone (12). Moreover, since the speaker (11) and the microphone (12) are arranged on circumferences of concentric circles, it is possible to obtain a compact configuration.
Public/Granted literature
- US20120281854A1 SOUND EMISSION AND COLLECTION DEVICE Public/Granted day:2012-11-08
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