Voice acquisition system and method

A technology for acquiring system and voice, applied in the field of information detection, to achieve the effect of being less perceptible, reducing risks, and saving implementation costs

Inactive Publication Date: 2020-12-01
INST OF INFORMATION ENG CHINESE ACAD OF SCI
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a voice acquisition system and method to solve the problem that the existing voice acquisition method needs to lay optical fibers in advance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Voice acquisition system and method
  • Voice acquisition system and method
  • Voice acquisition system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] Aiming at the problems that the existing optical fiber voice information acquisition method requires pre-embedded optical fiber, which requires a large amount of engineering, is easy to detect, and has high risks, the embodiment of the present invention provides a voice acquisition system. figure 1 A schematic structural diagram of the voic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The embodiment of the invention provides a voice acquisition system and method. The system comprises a first beam combining unit, a second beam combining unit, a circulator and a detection unit, wherein the first beam combining unit is used for coupling the fiber-to-the-home laser and the first signal laser and outputting a first coupling laser; the circulator is used for transmitting the first coupling laser to a fiber-to-the-home end and transmitting the second coupling laser reflected by the fiber-to-the-home end to the second beam combining unit; the second beam combining unit is used forinterfering the second coupling laser and the second signal laser and outputting an interference signal; and the detection unit is used for acquiring the interference signal, and the interference signal is used for demodulating and acquiring voice information. According to the system and the method provided by the embodiment of the invention, long-distance voice information acquisition is realizedthrough the home-entry optical fiber, an optical fiber does not need to be pre-embedded, the engineering quantity and the implementation cost are saved, the detection is not easy, and the hidden voice information acquisition risk is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of information detection, and in particular to a voice acquisition system and method. Background technique [0002] For a long time, optical fiber voice information acquisition has been widely used in military, security, production, economic and other fields as a widely used voice information acquisition method, and has achieved good results. [0003] The existing optical fiber voice information acquisition is mainly achieved through the fiber optic microphone laser voice acquisition method, and the fiber optic microphone is used as a tool for voice acquisition. The fiber optic microphone itself is wired, and the optical fiber needs to be pre-embedded in the room where the optical fiber is laid to obtain voice information. , a large amount of engineering, easy to detect, and high risk. Contents of the invention [0004] Embodiments of the present invention provide a voice acquisition...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/25
CPCH04B10/25891
Inventor 曾华林杨龙朱大立王宏超孟天宇李占勋
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap