Title:
EARPHONES
Document Type and Number:
WIPO Patent Application WO/2020/105197
Kind Code:
A1
Abstract:
[Problem] To provide earphones for receiving a sound signal by wireless communication, the earphones being able to be stably fitted into ears and having excellent sound quality. [Solution] These earphones are characterized by comprising: a sound conduit extending in one axial direction; a speaker for outputting acoustics in the one axial direction, the speaker being arranged on the base-end side of the sound conduit by being shifted to one side in a direction orthogonal to the one axial direction; a wireless communication circuit board arranged on the sound conduit at the rear-surface side of the speaker; and a housing having a front part that supports the base end of the sound conduit and swells from the base end to one side via an inclined surface that is inclined to the one axial direction to accommodate the speaker, and a rear part that swells from the base end to the other side in the orthogonal direction to accommodate the wireless communication circuit board, the clearance between the center axis of the speaker and the center axis of the sound conduit being smaller than the inside radius of the sound conduit.
Inventors:
HOSAKA AKIHIKO (JP)
Application Number:
PCT/JP2018/043304
Publication Date:
May 28, 2020
Filing Date:
November 25, 2018
Export Citation:
Assignee:
MEI COMPANY LTD (JP)
HOSAKA AKIHIKO (JP)
HOSAKA AKIHIKO (JP)
International Classes:
H04R1/10; H04R1/06
Foreign References:
| JP2015082824A | 2015-04-27 | |||
| US20080153556A1 | 2008-06-26 | |||
| JP2019004396A | 2019-01-10 | |||
| JP2016195469A | 2016-11-17 | |||
| JP2015084568A | 2015-04-30 |
Other References:
See also references of EP 3855759A4
Attorney, Agent or Firm:
TERAO Yasunori (JP)
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