Conference system based on digital voice encryption

A conference system, digital voice technology, applied in digital transmission system, transmission system, key distribution, can solve the problem of information security cannot be guaranteed

Inactive Publication Date: 2018-05-25
成都动视时代科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the main purpose of the present invention is to provide a conference system based on digital voice encryption, and also provide its decryption algorithm, and in the process of encryption and decryption, it also realizes the noise reduction processing of the voice signal noise. To a certain extent, it overcomes the above-mentioned defects that the traditional encryption algorithm cannot guarantee information security and the defect that the chaotic system encrypts.

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
  • Conference system based on digital voice encryption
  • Conference system based on digital voice encryption
  • Conference system based on digital voice encryption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Such as figure 1 As shown, a conference system based on digital voice encryption, including:

[0036] Voice collection module, used to collect input conference voice signals;

[0037] An encryption module is used to encrypt conference voice signals;

[0038] The transmission module is used to transmit the encrypted voice signal based on the B / S structure to the conference call.

[0039] Preferably, the encryption module encrypts the above-mentioned voice signal in the following manner: assuming that N initial signals s 1 (t),...,s n (t) and M key signals k 1 (t),...,k M (t), the encryption formula is:

[0040] X(t)=[x 1 (t),...,x N (t)] T =As k (t)

[0041] Among them, X(t) represents N encrypted signals, s k (t)=[s 1 (t),...,s n (t),k M (t)] T , A is an encrypted matrix of N×(M+N), and each value is between [-1,1]. Let A=[A S ,A k ], where A S is an N×N matrix, A k It is an N×M matrix, and the encryption formula is expressed by the following formul...

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 invention provides a conference system based on digital voice encryption and also provides a decryption algorithm of the system. In the encryption and decryption processes, noise reduction processing of voice signal noise is achieved, and the defect that information safety cannot be ensured by a traditional encryption algorithm and defects caused by encryption of a chaotic system are overcometo a certain extent.

Description

technical field [0001] The invention belongs to the field of voice signal processing, in particular to a conference system based on digital voice encryption. Background technique [0002] With the global rise of network technology and the development of digital signal processing technology, voice communication technology has achieved breakthrough development and wider application. However, when the voice communication content involves personal privacy, business secrets and state secrets, people will consider the confidentiality of voice information transmission. At the same time, when performing voice communication in an actual environment, the two parties in the call are easily disturbed by the background noise of the surrounding environment, thereby affecting the effect of communication. Therefore, it is very important to study voice encryption and noise reduction to ensure the security and quality of voice communication. [0003] Voice encryption is a completely reversi...

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 Applications(China)
IPC IPC(8): H04L9/08H04M3/56
CPCH04L9/0861H04M3/568
Inventor 周大军
Owner 成都动视时代科技有限公司
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