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:
Apr. 02, 2019
Filed:
Nov. 15, 2017
Transound Electronics Co., Ltd., Dongguan, Guangdong, CN;
Huming Zheng, Dongguan, CN;
Zhijian He, Dongguan, CN;
Xiaolin Deng, Dongguan, CN;
Tseng-Feng Wen, Dongguan, CN;
TRANSOUND ELECTRONICS CO., LTD., Dongguan, Guangdong, CN;
Abstract
An electrostatic loudspeaker and an electrostatic headphone are provided. The electrostatic loudspeaker includes a first back grid portion, a second back grid portion, a diaphragm portion, and an audio amplifier circuit module. The two polarized and charged back grid portions are combined with the diaphragm portion to form two alternating electric fields, providing great sound. The structure is simple and can be assembled conveniently.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile