Invention Grant
- Patent Title: Speaker device
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Application No.: US15246958Application Date: 2016-08-25
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Publication No.: US09774935B2Publication Date: 2017-09-26
- Inventor: Toshiyuki Matsumura , Akihisa Kawamura , Kazuki Honda , Takafumi Yuasa , Shuji Saiki , Satoshi Takayama
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2016-104538 20160525
- Main IPC: H04R1/02
- IPC: H04R1/02 ; H04R1/40 ; H04R7/18 ; H04R9/02 ; H04R9/06 ; H04R7/12 ; H04R9/04

Abstract:
A speaker device for reproducing an audio signal includes a first speaker including a first diaphragm and a first magnetic circuit that drives the first diaphragm, where the first diaphragm reproduces an audio signal including a predetermined frequency range, a second speaker including a second diaphragm and a second magnetic circuit that drives the second diaphragm, where the second diaphragm reproduces an audio signal including a frequency range substantially the same as the predetermined frequency range, and at least one cabinet having the first speaker and the second speaker mounted therein so that radiation directions of sounds are opposite to each other. At least part of a space formed between the first speaker and the second speaker communicates with the outside of the cabinet. When the speaker device reproduces the audio signal, the first diaphragm and the second diaphragm vibrate in opposite directions.
Public/Granted literature
- US20170064421A1 SPEAKER DEVICE Public/Granted day:2017-03-02
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