Title:
EARPHONE
Document Type and Number:
Japanese Patent JP2019022214
Kind Code:
A
Abstract:
To provide an earphone including a housing and at least one sound production unit.SOLUTION: A sound guide part formed in a tube like in a housing is formed, and a sound guide path is formed in the sound guide part so as to be the sound guide path of a two-wheel in an inner side and an outer side. An outer wheel sound guide path includes at least one discharge sound hole. The discharge sound hole of an inner wheel sound guide path is formed so as to be projected from an outer wheel sound guide path discharge sound hole. Thus the sound discharge holes are formed in front and rear sides. At least one sound production unit is provided in an inner part of a housing, and a sound produced from a center area of the sound discharge part of the sound production unit is directly output from the inner wheel sound guide path sound discharge hole, and a clear sound quality can be heard to ears. The sound produced from an outer wheel area of the sound production unit sound discharge part is diffused from the outer wheel sound guide sound discharge hole after the output of the sound. By diffusion efficiency of the sound guide path sound discharge hole, a three-dimensional sound feeling occurs, and an acoustic sense with a clear and a sound feeling can be provided by the front and rear sound discharge holes.SELECTED DRAWING: Figure 9
More Like This:
| WO/2022/197924 | EARPIECE AND EARHOOK FOR THE SAME |
| JPH09130887 | ACOUSTIC SIGNAL PRESENTATION DEVICE |
Inventors:
TSU KAZUHIRO
Application Number:
JP2018129845A
Publication Date:
February 07, 2019
Filing Date:
July 09, 2018
Export Citation:
Assignee:
TSU KAZUHIRO
International Classes:
H04R1/10
Attorney, Agent or Firm:
Patent Corporation Nagato & Partners