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:
Feb. 18, 2025
Filed:
Jul. 20, 2023
State Grid Jiangsu Taizhou Power Supply Company, Jiangsu, CN;
Yong Li, Jiangsu, CN;
Ting Chen, Jiangsu, CN;
Ling Ju, Jiangsu, CN;
Jijing Yin, Jiangsu, CN;
Ze Zhang, Jiangsu, CN;
Xingchun Xu, Jiangsu, CN;
Beibei Weng, Jiangsu, CN;
Zhenguo Chuai, Jiangsu, CN;
Yan Wu, Jiangsu, CN;
Li Chen, Jiangsu, CN;
Yang Cheng, Jiangsu, CN;
Tianyu He, Jiangsu, CN;
Le Yuan, Jiangsu, CN;
Jie Qian, Jiangsu, CN;
Debao Tang, Jiangsu, CN;
Yanquan Zhu, Jiangsu, CN;
Anqi Ding, Jiangsu, CN;
Kaiming Bian, Jiangsu, CN;
Wen Chen, Jiangsu, CN;
Wanjian Hu, Jiangsu, CN;
Hongbo Dai, Jiangsu, CN;
Weijun Shi, Jiangsu, CN;
State Grid Jiangsu Taizhou Power Supply Company, Jiangsu, CN;
Abstract
Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion () and a rear end portion (), the front end portion () is trumpet-shaped, an inner wall surface of the front end portion () is present a pattern array of a microstructure (), and the microstructure () presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (), is reflected through the pattern array of the microstructure () on the inner wall surface of the front end portion (), and is transmitted from an exit of the rear end portion (), and a sound pressure of the exit of the rear end portion () is 4 times˜8 times a sound pressure of the entrance of the front end portion ().