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:
Nov. 04, 2025
Filed:
Dec. 07, 2023
Laser Institute of Shandong Academy of Sciences, Shandong, CN;
Chen Wang, Shandong, CN;
Ying Shang, Shandong, CN;
Shuai Qu, Shandong, CN;
Jian Yang, Shandong, CN;
Sheng Huang, Shandong, CN;
Chang Li, Shandong, CN;
Bing Cao, Shandong, CN;
Weitao Wang, Shandong, CN;
Jiasheng Ni, Shandong, CN;
LASER INSTITUTE OF SHANDONG ACADEMY OF SCIENCES, Shandong, CN;
Abstract
The application relates to a distributed acoustic sensing voice message recognition system and method. The system includes a sensing optical fiber, configured to receive a voice message and convert the voice message into a voice signal; a laser emission unit, configured to emit a laser signal with a narrow linewidth and with spontaneous emission noise being eliminated; a circulator, configured to transmit the laser signal to the sensing optical fiber to monitor the voice signal, and receive a backward Rayleigh scattering signal from the sensing optical fiber; a collection unit, configured to collect the backward Rayleigh scattering signal emitted by the circulator; and a convolutional recurrent network unit, configured to perform complex field mapping on the backward Rayleigh scattering signal collected by the collection unit, to reconstruct the voice signal.