Title:
LOUDSPEAKER AND METHOD FOR IMPROVING DIRECTIVITY, HEAD-MOUNTED DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2018/058845
Kind Code:
A1
Abstract:
Disclosed in the present invention are a loudspeaker and method for improving directivity, a head-mounted device and method, the loudspeaker comprising: a housing, a magnetic circuit unit that is used for generating a magnetic force and which is provided in the housing, a voice coil vibrating because of the magnetic force and a vibrating film which vibrates in response to the vibration of the voice coil and which generates a sound. The loudspeaker also comprises a curved surface extension structure; the curved surface extends to connect to the vibrating film so as to radiate the sound generated by the vibrating film into a predetermined range of directivity. By adding a surface extension structure to a loudspeaker like that of the present invention, the directivity of the sound emitted by the loudspeaker is thereby significantly improved in comparison to conventional loudspeakers, thus improving the privacy of a telephone conversation and aiding in an immersive experience provided by a head-mounted device.
Inventors:
HUA YANG (CN)
WANG ZE (CN)
ZHOU HONGWEI (CN)
LI DEHUA (CN)
WANG ZE (CN)
ZHOU HONGWEI (CN)
LI DEHUA (CN)
Application Number:
PCT/CN2016/114052
Publication Date:
April 05, 2018
Filing Date:
December 31, 2016
Export Citation:
Assignee:
GOERTEK TECH CO LTD (CN)
International Classes:
H04S1/00; H04R5/02
Foreign References:
| CN1435073A | 2003-08-06 | |||
| CN103155594A | 2013-06-12 | |||
| CN101080107A | 2007-11-28 | |||
| CN205320245U | 2016-06-15 | |||
| US20120219165A1 | 2012-08-30 |
Attorney, Agent or Firm:
BEIJING LONGAN LAW FIRM (CN)
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