Title:
ULTRA-SLIM HIGH-RESOLUTION ELECTROMAGNETIC SPEAKER USING BRIDGE-EDGE METHOD
Document Type and Number:
WIPO Patent Application WO/2018/128325
Kind Code:
A1
Abstract:
The present invention relates to an ultra-slim high-resolution electromagnetic speaker using a bridge-edge method, wherein a coil and a permanent magnet, which are a pair of magnetic circuits laminated in upper and lower portions of a vibration module, are provided in a horizontally disposed structure, wherein the permanent magnet is disposed inside the coil so that a thin, slim speaker can be achieved, wherein an inner magnetic field of the permanent magnet, of which opposite poles are close to each other by a limiter, can be used as a driving bias of a vibration plate, which could lead to reduced magnetoresistance and increased efficiency.
Inventors:
YU SOOJIN (KR)
YU SOOHO (KR)
YU SOOHO (KR)
Application Number:
PCT/KR2017/015603
Publication Date:
July 12, 2018
Filing Date:
December 28, 2017
Export Citation:
Assignee:
YU SOOJIN (KR)
YU SOOHO (KR)
YU SOOHO (KR)
International Classes:
H04R9/06; H04R7/04; H04R7/12; H04R7/20; H04R9/02; H04R9/04
Foreign References:
| KR101596894B1 | 2016-02-23 | |||
| KR100387645B1 | 2003-06-18 | |||
| JP2011035812A | 2011-02-17 | |||
| KR101596891B1 | 2016-02-23 | |||
| JP2000152379A | 2000-05-30 | |||
| KR101596894B1 | 2016-02-23 |
Other References:
See also references of EP 3567872A4
Attorney, Agent or Firm:
HWANG, Jung Hyun (KR)
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