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Patent Searching and Data


Title:
ACOUSTIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/139103
Kind Code:
A1
Abstract:
The present invention favorably reduces a crosstalk component output from speakers that reproduce left and right ear signals respectively. The left ear signal and the right ear signal are each reproduced with directivity by using at least two speakers arranged in a back-to-back manner, so as to reduce the crosstalk component. For example, the speakers are speakers provided to a headrest or a seat to which the headrest is attached. For example, the directivity which the left ear signal and the right ear signal each have is bidirectional or unidirectional.

Inventors:
HAYASHI, Shigetoshi (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
WATANABE, Ryutaro (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
ITABASHI, Tetsunori (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
NAKAGAWA, Toru (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
DOMAE, Takuma (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
Application Number:
JP2019/000602
Publication Date:
July 18, 2019
Filing Date:
January 10, 2019
Export Citation:
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Assignee:
SONY CORPORATION (1-7-1, Konan Minato-K, Tokyo 75, 〒1080075, JP)
International Classes:
H04R3/00; H04R1/02; H04R5/02
Domestic Patent References:
WO2017030920A22017-02-23
Foreign References:
JPH0946788A1997-02-14
JP2012019506A2012-01-26
JPH0819089A1996-01-19
JP2007143164A2007-06-07
Attorney, Agent or Firm:
MIYATA, Masaaki et al. (Daido Patent Attorneys Partnership Corporation, Daiwa Hatchobori ekimae Bldg. West 8F 3-25-9, Hatchobori, Chuo-K, Tokyo 32, 〒1040032, JP)
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