Title:
EARPHONE
Document Type and Number:
WIPO Patent Application WO/2020/250791
Kind Code:
A1
Abstract:
[Problem] To manufacture an earphone that outputs high-quality high-pitched, middle-pitched, and low-pitched sounds by changing a weak low register into a high-quality low register using one dynamic speaker (having a slightly strengthened high register, and using a vibrating membrane of a single material without adding another material such as plating). [Solution] As depicted in fig. 1, a speaker S is mounted in a front housing A, sound conduit inlets such as a first sound path port a (a speaker front surface, an intake for high-pitched sound frequencies) and a second sound path port b (a speaker back surface, an intake for low-pitched sound frequencies that have passed through a low-pitched sound refined component D) are manufactured separately for a high register and a low register, which meet in a sound conduit, and an earphone is closely attached to an external auditory canal by an ear tip P, and conducts sounds to an eardrum and a cochlea by both air conduction and bone conduction.
Inventors:
ODA TOSHIO (JP)
Application Number:
PCT/JP2020/022057
Publication Date:
December 17, 2020
Filing Date:
June 04, 2020
Export Citation:
Assignee:
ODA TOSHIO (JP)
International Classes:
H04R1/10
Foreign References:
| JP2019004444A | 2019-01-10 | |||
| JP2016158227A | 2016-09-01 | |||
| JP2006287674A | 2006-10-19 |
Attorney, Agent or Firm:
UMEZAWA Takashi (JP)
Download PDF: