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:
Dec. 14, 2021
Filed:
Jul. 21, 2020
Aac Technologies Pte. Ltd., Singapore, SG;
Kaitai Pan, Los Angeles, CA (US);
Xingzhi Huang, Shenzhen, CN;
Chao Wang, Shenzhen, CN;
Bin Xu, Shenzhen, CN;
Henglizi Zhang, Shenzhen, CN;
Lijian Ye, Shenzhen, CN;
Yao Hui, Shenzhen, CN;
Feng Shan, Shenzhen, CN;
Zijie Zhang, Shenzhen, CN;
AAC Technologies Pte. Ltd., Singapore, SG;
Abstract
The present invention provides a speaker having a vibrating system and a magnetic circuit system for driving the vibrating system to vibrate and sound. The magnetic circuit system has magnetic gap. The vibrating system includes vibrating assembly and voice coil assembly connected to the vibrating assembly, the voice coil assembly is inserted into the magnetic gap. The magnetic circuit system has a magnetic line concentrating area in the magnetic gap. The voice coil assembly includes a first voice coil connected to the vibrating assembly and a second voice coil arranged on the first voice coil at a side away from the vibrating assembly. if in the magnetic line concentrating area locates only the first voice coil, an electric signal is input only to the first voice coil; if in the magnetic line concentrating area locates only the second voice coil, electric signal is input only to the second voice coil.