The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 2018
Filed:
Jan. 26, 2017
Applicants:
Shengrong Shi, Shenzhen, CN;
Fuhu Zhang, Shenzhen, CN;
Ronglin Linghu, Shenzhen, CN;
Inventors:
Assignee:
AAC TECHNOLOGIES PTE. LTD., Singapore, SG;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 29/00 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01);
U.S. Cl.
CPC ...
H04R 29/003 (2013.01); H04R 9/046 (2013.01); H04R 9/06 (2013.01); H04R 2400/11 (2013.01);
Abstract
A loudspeaker is disclosed. The loudspeaker includes a frame; a vibration system accommodated in the frame and comprising a vibrating diaphragm and a voice coil for driving the vibrating diaphragm fixed with the frame; a magnetic circuit system driving the vibration system; a light source assembled with the voice coil; a photosensitive sensor located in the yoke and within the irradiation scope of the light source. The magnetic circuit system includes a yoke positioned by the frame and a magnet portion supported by the yoke.