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Patent Searching and Data


Title:
EARPHONE USING DYNAMIC SPEAKER AND PIEZOELECTRIC SPEAKER
Document Type and Number:
WIPO Patent Application WO/2017/082665
Kind Code:
A1
Abstract:
An earphone according to the present invention comprises: a rear housing into which an earphone cable is inserted at one side thereof, and having an opening portion formed on the other side thereof; a front housing having one side coupled to the opening portion, having an eartip fixed to the other side, and having a hollow therein; a dynamic speaker unit accommodated inside the rear housing; and at least one piezoelectric speaker element coupled inside the front housing.

Inventors:
KO, Ju Heon (712dong 505ho Dongtan Neungdong Maeul Jugong Apt., Hwaseong-si, Gyeonggi-do, 18423, KR)
LEE, Yeong Jae (103dong 301ho Sinchon Maeul Poshometown Apt, .Giheung-guYongin-si, Gyeonggi-do, 16908, KR)
CHOI, Sang Su (29 Cheonjung-ro 11-gil, Gangdong-gu, Seoul, 05323, KR)
MIN, Byung Il (9 Gwongwang-ro 276beon-gil, Paldal-guSuwon-si, Gyeonggi-do, 16533, KR)
Application Number:
KR2016/012988
Publication Date:
May 18, 2017
Filing Date:
November 11, 2016
Export Citation:
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Assignee:
ALMUS CORP. (132 Haewian-gil, Dunpo-myeonAsan-si, Chungcheongnam-do, 31421, KR)
International Classes:
H04R1/10; H04R9/02; H04R17/00; H04R23/02
Foreign References:
JP3193281U2014-09-25
KR101185803B12012-10-02
KR101309072B12013-10-14
KR20090106679A2009-10-12
US20090232341A12009-09-17
Attorney, Agent or Firm:
YOON, Jae Seung (7th Floor, Deokcheon Bldg 7 Teheranro 28-gil,,Gangnam-gu, Seoul, 06220, KR)
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