HEADPHONE DEVICE - SONY CORP

Title:

HEADPHONE DEVICE

Document Type and Number:

WIPO Patent Application WO/2012/053446

Kind Code:

A1

Abstract:

[Problem] To minimize the impact of individual differences in virtual sound field reproduction and to also enable natural hearing of external sounds. [Solution] A headphone device wherein a left-side headphone unit and a right-side headphone unit have speaker arrays comprising a plurality of speaker units arranged so as to surround the auricles. The speaker arrays in the headphone units use wave front synthesis to reproduce a sound field within a closed curved surface in the vicinity of the auricles. Impact caused by individual differences is less likely to occur because the speaker arrays reproduce the sound field within a closed curved surface in the vicinity of the auricles by wave front synthesis and because reverberation and diffraction effects occur in the ear of each individual. In addition, the speaker arrays comprise a plurality of speaker units arranged so as to surround the auricles and are not of a shape that blocks the ears of the listener, which enables external sounds to be heard naturally.

Inventors:

KON HOMARE (JP)

Application Number:

PCT/JP2011/073684

Publication Date:

April 26, 2012

Filing Date:

October 14, 2011

Export Citation:

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Assignee:

SONY CORP (JP)
KON HOMARE (JP)

International Classes:

H04R5/033; H04R1/10; H04R1/40; H04S1/00; H04S7/00

Foreign References:

JP2006525708A	2006-11-09
JP2006303658A	2006-11-02
JP2006245680A	2006-09-14
JP2003199187A	2003-07-11
JPH05336599A	1993-12-17
JP2010263354A	2010-11-18

Other References: