Title:
SOUND PICKUP DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/017356
Kind Code:
A1
Abstract:
Provided is a sound pickup device, comprising a microphone and a first assembly. The first assembly forms a solid angle relative to the center point of the microphone or a vibrating diaphragm; the included angle between a first straight line determined by the center point of the first assembly and the center point of the microphone or the vibrating diaphragm and a first plane where the vibrating diaphragm is located is smaller than a first threshold; and the projection of the solid angle on a second plane is smaller than a second threshold, wherein the second plane is a plane determined by the central axis of the vibrating diaphragm and the center point of the first assembly, and the central axis is perpendicular to the first plane. By adjusting the internal structure of the mic, shielding of acoustic signals by the internal structure of the mic is reduced, and the directivity performance of the mic is thus improved.
Inventors:
JIANG NAN (CN)
LIN JUYING (CN)
FU QIANG (CN)
ZHENG KUNKUN (CN)
LI RUI (CN)
WU DENGFENG (CN)
FENG JINWEI (CN)
LIN JUYING (CN)
FU QIANG (CN)
ZHENG KUNKUN (CN)
LI RUI (CN)
WU DENGFENG (CN)
FENG JINWEI (CN)
Application Number:
PCT/CN2021/107273
Publication Date:
January 27, 2022
Filing Date:
July 20, 2021
Export Citation:
Assignee:
ALIBABA GROUP HOLDING LTD (CN)
International Classes:
H04R1/04; H04R9/08; H04R1/08; H04R7/00; H04R9/02; H04R9/10
Foreign References:
| CN212785845U | 2021-03-23 | |||
| CN110447237A | 2019-11-12 | |||
| CN109889967A | 2019-06-14 | |||
| US20100208929A1 | 2010-08-19 | |||
| US20150139467A1 | 2015-05-21 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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