CN1437349A - Enciphering and deciphering device for voice/data transmission - Google Patents
Enciphering and deciphering device for voice/data transmission Download PDFInfo
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- CN1437349A CN1437349A CN 02104810 CN02104810A CN1437349A CN 1437349 A CN1437349 A CN 1437349A CN 02104810 CN02104810 CN 02104810 CN 02104810 A CN02104810 A CN 02104810A CN 1437349 A CN1437349 A CN 1437349A
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Abstract
An enciphering and deciphering device using for voice/data transmission. the voice signal to be sent to transmitting channel through communication terminal after it is processed with analog/digital conversion and enciphering as well as processed with digital/analog conversion the audio signal to be output by sounder at receiving end after it is processed with analog/digital conversion and deciphering as well as also processed with digital/analog conversion to convert it to be original voice signal. The course and principle are similar to abovesaid voice signal when the processing signal is data signal.
Description
The present invention relates to the ciphering and deciphering device that a kind of voice/data transmission is used, belong to areas of information technology.
In the prior art, voice-and-data can be encrypted before communication system sends transmission with it, receives in the receiving terminal deciphering again.Under many situations, for example in mobile communcations system, above-mentioned encryption and decryption process is by manufacturer's design and realization, and the user only is to use, and can't be controlled the real process of encryption and decryption.In the occasion of special need to be keep secret, this usually is unacceptable.
Task of the present invention is to reform prior art, makes the user of voice and data communication system, can be outside the mechanism of original system, and oneself sets the algorithm and the process of encryption and decryption, to guarantee confidentiality and privacy for information about.
The following describes the basic structure and the principle of the ciphering and deciphering device 1 that voice/data transmission of the present invention uses.
Referring to accompanying drawing, voice signal becomes digital signal by microphone 6 inputs through A/D converter 10, after encryption equipment 12 is encrypted, pass through D/A 11 again, deliver to the input 2 of communicating terminal 16, handle and send to transmission channel 17 through communication terminal 16.At receiving terminal, signal is after receiving processing, in audio output 3 outputs of communication terminal 16.This signal is through A/D converter 10, and again via 13 deciphering of digital decrypted device, process D/A 11 is exported at acoustical generator 7 after converting former voice signal to again.
When handled when being data-signal, the situation of its process and principle and above-mentioned voice signal is similar, difference, be this moment signal do not need processing through A/D converter 10 and D/A 11, and at transmitting terminal, data-signal is through by data input port 8, delivers to the data input pin 4 of communicating terminal 16 after encryption equipment 12 is encrypted again.And at receiving terminal, signal is delivered to data output 9 by data output end 5 outputs of communicating terminal 16 again after decipher 13 deciphering.
An important feature of device of the present invention is its adding in encryption equipment 12 and decipher 13, decipherment algorithm and process respectively, can be set and control by encipheror input control mouthfuls 14 and decrypted program input control mouthfuls 15 respectively by the user.
The ciphering and deciphering device 1 that voice/data transmission of the present invention is used has following advantage:
A. algorithm that adds, deciphers and process can be provided with and control by user oneself, make it be specially adapted to and need hold in close confidence
The voice-and-data communication;
B. this device can be added to existing communicating terminal easily, for example uses on the mobile communication phone.
The accompanying drawing of this specification provides the basic structure of the ciphering and deciphering device 1 that voice/data transmission of the present invention uses.Wherein 16 is communicating terminal, and it has audio input end 2, audio output 3, data input pin 4 and data output end 5.6,7,8 and 9 microphone, acoustical generator, data input port and the data outputs that are respectively the ciphering and deciphering device 1 that voice/data transmission of the present invention uses.10 is A/D converter, and 11 is D/A, and 12 is encryption equipment, and 13 is decipher.14 is that encipheror is imported the control mouth, and 15 is decrypted program input control mouth.
Provide one embodiment of the present of invention below.Referring to accompanying drawing, present embodiment is handled the privacy problem of cell phone communication.Communicating terminal 16 among the figure is a mobile phone, and 2 and 3 are respectively external microphone and the receiver J-Horner on the mobile phone, and 4 and 5 is data input pin and the output in system's joint on the mobile phone.6 is external microphone, and 7 is external earphone, and 8 and 9 are respectively data input port and the delivery outlet that installs additional behind the device of the present invention.A/D converter 10 and D/A 11, and encryption equipment 12 and decipher 13 can be integrated on the chip.Encryption equipment 12 and decipher 13 are programming device, and wherein encryption and decryption program and algorithm will be controlled mouthful 5 inputs and a setting by encipheror input control mouth 14 and decrypted program input by the user of mobile phone.
Claims (2)
1. ciphering and deciphering device 1 that voice/data transmission is used, it is characterized in that it is made up of by following mode following each several part: on the voice transtation mission circuit, microphone 6 is connected to D/A 10, make and deliver to encryption equipment 12 behind the audio signal digitizing and encrypt, be converted to the audio signal that process is encrypted through D/A 11 again, deliver to the audio input end 2 of communication terminal 16, handle and send to transmission channel 17 by communication terminal 16 again.On the voice receiving circuit, audio signal,, is delivered to D/A 11 again and is reduced into former voice signal it deciphering by decipher 13 after A/D converter 10 converts digital signal to by audio output 3 outputs of communication terminal 16, in acoustical generator 7 outputs.On data transmit circuit, data are by 8 inputs of data input port, and after encryption equipment 12 was encrypted, the data input pin 4 of delivering to communication terminal 16 again sent.On data receiver circuit, data after decipher 13 deciphering, are delivered to data output 9 by data output end 5 outputs of communication terminal 16 again.
2. by described encryption equipment 12 of claim 1 and decipher 13, it is characterized in that they are programmable devices, the program of encryption and decryption wherein and algorithm can be provided with and input by the encipheror input control that is connected to them mouthfuls 14 and decrypted program input control mouthfuls 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104810 CN1437349A (en) | 2002-02-08 | 2002-02-08 | Enciphering and deciphering device for voice/data transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02104810 CN1437349A (en) | 2002-02-08 | 2002-02-08 | Enciphering and deciphering device for voice/data transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1437349A true CN1437349A (en) | 2003-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02104810 Pending CN1437349A (en) | 2002-02-08 | 2002-02-08 | Enciphering and deciphering device for voice/data transmission |
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| CN (1) | CN1437349A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101835146A (en) * | 2010-04-12 | 2010-09-15 | 东南大学 | Third generation mobile network mobile phone sound end-to-end encrypting device and method |
| CN103152130A (en) * | 2013-01-25 | 2013-06-12 | 安徽太一通信科技有限公司 | Method for transmitting encrypted voice by utilizing standard communication system |
| CN104581714A (en) * | 2015-01-29 | 2015-04-29 | 成都三零瑞通移动通信有限公司 | Method for encrypting speech on basis of TD-SCDMA (time division-synchronization code division multiple access) circuit domains |
| CN106528043A (en) * | 2016-10-27 | 2017-03-22 | 李玮 | Mathematical operation system |
-
2002
- 2002-02-08 CN CN 02104810 patent/CN1437349A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101835146A (en) * | 2010-04-12 | 2010-09-15 | 东南大学 | Third generation mobile network mobile phone sound end-to-end encrypting device and method |
| CN103152130A (en) * | 2013-01-25 | 2013-06-12 | 安徽太一通信科技有限公司 | Method for transmitting encrypted voice by utilizing standard communication system |
| CN104581714A (en) * | 2015-01-29 | 2015-04-29 | 成都三零瑞通移动通信有限公司 | Method for encrypting speech on basis of TD-SCDMA (time division-synchronization code division multiple access) circuit domains |
| CN106528043A (en) * | 2016-10-27 | 2017-03-22 | 李玮 | Mathematical operation system |
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