Title:
EXTERNAL SPEAKER ASSEMBLY AND AUDIO DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/054036
Kind Code:
A1
Abstract:
An external speaker assembly (10) and an audio device (20). The external speaker assembly (10) comprises a housing (11), a speaker unit (12), and a drive circuit (13), and can be detachably connected to the audio device (20). When the external speaker assembly (10) is connected to the audio device (20), the housing (11) and a back cover of the audio device (20) form a sealed cavity (30), and the speaker unit (12) and the drive circuit (13) are located in the sealed cavity (30). The drive circuit (13) is used for being connected to the audio device (20), and receiving an audio signal from the audio device (20) to drive the speaker unit (12) to emit sound.
Inventors:
WU ZHIHUA (CN)
JIN XIULU (CN)
LI LINFANG (CN)
WU WENFEI (CN)
FENG SIQIN (CN)
JIN XIULU (CN)
LI LINFANG (CN)
WU WENFEI (CN)
FENG SIQIN (CN)
Application Number:
PCT/CN2017/079685
Publication Date:
March 29, 2018
Filing Date:
April 07, 2017
Export Citation:
Assignee:
JRD COMMUNICATION SHENZHEN LTD (CN)
International Classes:
H04R1/20
Foreign References:
| CN106303801A | 2017-01-04 | |||
| CN101783981A | 2010-07-21 | |||
| CN102769729A | 2012-11-07 | |||
| JP2005151236A | 2005-06-09 | |||
| US6307947B1 | 2001-10-23 | |||
| CN1988730A | 2007-06-27 | |||
| CN201839417U | 2011-05-18 |
Other References:
See also references of EP 3518554A4
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
Download PDF: