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Acoustic device

專利號
US11159886B2
公開日期
2021-10-26
申請人
Sony Corporation（JP Tokyo）
發(fā)明人
Shigetoshi Hayashi; Ryutaro Watanabe; Tetsunori Itabashi; Toru Nakagawa; Takuma Domae
IPC分類
H04R5/02; H04R1/02
技術領域
ear,speaker,11rp,11lp,speakers,signal,11ls,11rs,acoustic,right
地域： Tokyo

摘要

To favorably reduce crosstalk components output from respective speakers that reproduce left and right ear signals.Directivity is given to a left ear signal and a right ear signal and the left ear signal and the right ear signal are reproduced by using at least two respective speakers arranged back-to-back to reduce crosstalk components. For example, the speaker may be a speaker installed in a headrest or a seat provided with the headrest. For example, the directivity given to the left ear signal and the directivity given to the right ear signal may be bidirectional directivity or unidirectional directivity.

說明書

In addition, the acoustic device 10J reproduces the left ear signal of the B-side seat with unidirectional directivity by using the speakers 11LB and 11RA arranged back-to-back. Therefore, with regard to the left ear signal, the level of sound that propagates toward a right ear direction of the listener MA sitting on the A-side seat becomes significantly lower than the level of sound that propagates toward a left ear direction of the listener MB sitting on the B-side seat (indicated by an arrow b), and this makes it possible to reduce a crosstalk component related to the A-side seat.

Note that, although detailed description will be omitted, the acoustic device 10J illustrated in FIG. 11 reproduces the left ear signal of the A-side seat with unidirectional directivity in a way similar to the reproduction of the left ear signal of the B-side seat. This makes it possible to reduce a crosstalk component related to an adjacent seat. Similarly, although detailed description will be omitted, the acoustic device 10J reproduces the right ear signal of the B-side seat with unidirectional directivity in a way similar to the reproduction of the right ear signal of the A-side seat. This makes it possible to reduce a crosstalk component related to an adjacent seat.

11th Embodiment

權利要求

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