CN101997954A - Encryption and decryption accessory for communication terminal - Google Patents
Encryption and decryption accessory for communication terminal Download PDFInfo
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- CN101997954A CN101997954A CN2009101620462A CN200910162046A CN101997954A CN 101997954 A CN101997954 A CN 101997954A CN 2009101620462 A CN2009101620462 A CN 2009101620462A CN 200910162046 A CN200910162046 A CN 200910162046A CN 101997954 A CN101997954 A CN 101997954A
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Abstract
The invention provides an encryption and decryption accessory for a communication terminal, belonging to the field of communication devices. The accessory is characterized by consisting of a central processing unit (MCU), a network modulation and demodulation unit, a speech processing unit, an encryption and decryption unit and an audio interface. Speech information can be digitized, encoded and compressed; the compressed information is encrypted and then the encrypted information is modulated by the network modulation and demodulation unit; network information which is obtained by a speech communication device can be demodulated by the network modulation and demodulation unit; the demodulated information is decrypted, and then the decrypted information is decompressed into speech. The accessory at least comprises an interface for data transmission. The accessory is suitable for various communication terminals, such as analogue interphones, radio stations, mobile phones, telephones, satellite telephones and the like. The accessory can be provided with structures such as the corresponding network modulation and demodulation unit and the like according to different network communication transmission requirements so as to realize encrypted transmission of the speech information.
Description
Technical field
The invention belongs to communication equipment field, specially refer to communication terminal accessory with encryption, decipher function.
Background technology
Now, communication network spreads all over each corner, the world, becomes " nervous system " of society worthy of the namely.All the time, various information such as the uncountable politics of human society, military affairs, economy, science and technology, culture, life are being transmitted between various communication terminals.The popularity of communication terminal directly becomes the mark post of national information level.Development just because of information-based explosion type makes social efficiency bring up to unprecedented degree.But people often are addicted to the huge benefits that informationization technology brings and ignore its potential harmfulness, and the safe transfer of information and the struggle of steal information are all the time through the overall process of Informatization Development.The information exchanging process link is many, path length, circuit can't effectively protect.Compare with other means of obtaining information, information, on communication line or circuit by eavesdropping intercept information, the mode of information is simple, input cost is low, institute obtains and contains much information.In the face of above-mentioned situation, people recognize that gradually information security is directly connected to national security, social safety, mechanism's safety, until personal security, household safe.Communication security more and more is subjected to people's great attention, so encryption is just arisen at the historic moment.
Early stage encryption only is used for confidential departments such as government organs, army, and its type of security is analog, and Cipher Strength is low.Along with scientific and technological progress and social development, the encrypting and decrypting terminating machine has entered digital Age since the nineties, and beginning is popularized to civil area.
Current communication terminal quantity is huge, cancels now to cause the significant wastage of social resources with the method for product purchasing novel product.Particularly some large corporations, unit, the unified new equipment of changing needs capital quantity huge, often also no longer has been new technology, new product when causing new technology, new product really to be applied to market.Have only by technological transformation and just can address the above problem the existing communication product.
Summary of the invention
The present invention is directed to the various communication equipment of existing usefulness and can realize information communication based on heterogeneous networks, information is transmitted with clear-text way mostly, exists potential safety hazard to a certain degree.Be stand-alone product mostly now, can't use maintaining secrecy of communication equipment butt joint realization information with the secure communication terminal.And the way that adopts new product to substitute existing product will inevitably cause the waste of social resources.The present invention realizes the information encryption in the voice communication by connect an accessory on the audio interface of original communication terminal.
The present invention finishes by following technological means: a kind of encrypting and decrypting accessory that is used for communication terminal, form by central control unit, network signal modem module, Audio Processing Unit, encrypting and decrypting unit and audio interface, can be with voice messaging digitlization and encoding compression, information after the compression is encrypted, modulate by the network modem module again; Also the network information that voice communication apparatus can be obtained is carried out demodulation by the network modem module, the information after the demodulation is decrypted, and this information decompressed is reduced into voice.This accessory includes an interface at least and is used for transfer of data.
The described encrypting and decrypting accessory that is used for communication terminal can be connected to form the encrypting and decrypting unit with the encrypting and decrypting chip and realize the information encryption deciphering.
The described encrypting and decrypting accessory that is used for communication terminal, the chip of realizing the encrypting and decrypting function in its data ciphering and deciphering unit are SSX0902 with the logic technology of can the recombinating safe processors of can recombinating.
The described encrypting and decrypting accessory that is used for communication terminal realizes in its Audio Processing Unit that the chip of compress speech decompressing function is a TR600 type speech chip.
When the described encrypting and decrypting accessory that is used for communication terminal is applied to simulate intercom, can be connected with the audio interface of simulation intercom, the simulation intercom can be received the audio signal transmission of Web broadcast to simulating intercom network signal modem module, carry out signal processing through simulation intercom network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the signal after handling to local user; Also local user's voice messaging can be carried out signal processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, simulation intercom network modem module, signal after handling is transferred to the simulation intercom, this signal is carried out Web broadcast by the simulation intercom.Said process has been realized the coded communication of simulation intercom.
When the described encrypting and decrypting accessory that is used for communication terminal is applied to the radio station, can be connected with the audio interface in radio station, the audio signal transmission that the radio station can be received Web broadcast is to radio station network modulating and demodulating signal unit, carry out signal processing through radio station network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the signal after handling to local user; Also local user's voice messaging can be carried out signal processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, radio station network modem module, signal after handling is transferred to the radio station, this signal is carried out Web broadcast by the radio station.Said process has been realized the coded communication in radio station.
When the described encrypting and decrypting accessory that is used for communication terminal is applied to mobile phone, can be connected with the audio interface of mobile phone, the network user's that mobile phone can be received audio signal transmission is to cell phone network modulating and demodulating signal unit, carry out signal processing through mobile phone network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the signal after handling to local user; Also local user's voice messaging can be carried out signal processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, cell phone network modem module, the signal after handling is transferred to mobile phone, this signal be transferred to network by mobile phone.Said process has been realized the coded communication of mobile phone.
When the described encrypting and decrypting accessory that is used for communication terminal is applied to telephone set, can be connected with the audio interface of phone, the network user's that phone can be received audio-frequency information transfers to PSTN network information modem module, carry out information processing through PSTN network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the information after handling to local user; Also local user's voice messaging can be carried out information processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, PSTN network modem module, with the message transmission after handling to phone, by phone with this message transmission to the PSTN network.Said process has been realized the coded communication of phone.
When the described encrypting and decrypting accessory that is used for communication terminal is applied to satellite telephone, can be connected with the audio interface of satellite phone, the network user's that satellite phone can be received audio signal transmission is to satellite phone network signal modem module, carry out signal processing through satellite phone network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the signal after handling to local user; Also local user's voice messaging can be carried out signal processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, satellite phone network modem module, signal after handling is transferred to satellite phone, this signal is transferred to network by satellite phone.Said process has been realized the coded communication of satellite phone.
The outstanding feature that compared with the prior art the present invention has is: can be connected with the communication terminal with audio interface, the physical structure of original communication terminal is deciphered and do not changed to realization voice messaging digital encryption.
Description of drawings
Fig. 1 is the encrypting and decrypting accessory logical schematic of communication terminal.
Fig. 2 is the encrypting and decrypting accessory electrical schematic diagram of communication terminal.
Fig. 3 realizes the encrypting and decrypting accessory logical schematic of data ciphering and deciphering for adopting the encrypting and decrypting unit with deciphering chip.
Fig. 4 realizes the encrypting and decrypting accessory logical schematic of data ciphering and deciphering for adopting the SSX0902 safe processor of can recombinating.
Fig. 5 realizes the encrypting and decrypting accessory logical schematic that compress speech decompresses for adopting the TR600 cake core.
Fig. 6 is the simulation intercom logical schematic with encrypting and decrypting accessory.
Fig. 7 is the radio station machine logical schematic with encrypting and decrypting accessory.
Fig. 8 is the mobile phone logical schematic with encrypting and decrypting accessory.
Fig. 9 is the telephone set logical schematic with encrypting and decrypting accessory.
Figure 10 is the satellite phone logical schematic with encrypting and decrypting accessory.
Among the above-mentioned figure, the 1st, central control unit (MCU), the 2nd, network modem module, the 3rd, Audio Processing Unit, the 4th, audio interface, the 5th, encrypting and decrypting unit, the 6th, the encrypting and decrypting chip, the 7th, the SSX0902 safe processor of can recombinating, the 8th, TR600 cake core, the 9th, simulation intercom, the 10th, the radio station, 11 mobile phones, the 12nd, telephone set, the 13rd, satellite phone.
Embodiment
Voice messaging digitlization and encoding compression can be encrypted the information after the compression, modulate by the network modem module again; Also the network information that voice communication apparatus can be obtained is carried out demodulation by the network modem module, the information after the demodulation is decrypted, and this information decompressed is reduced into voice.This accessory includes an interface at least and is used for transfer of data.
With reference to Fig. 1 Fig. 2, a kind of encrypting and decrypting accessory that is used for communication terminal is made up of central control unit (MCU) 1, network signal modem module, Audio Processing Unit 3, encrypting and decrypting unit 5 and audio interface 4.This accessory links to each other with communication terminal by audio interface 4.Audio Processing Unit 3 is converted into local user's voice messaging digital information and carries out encoding compression, Audio Processing Unit 3 with this message transmission to central control unit (MCU) 1,1 pair of this information of central control unit (MCU) is encrypted the row format of going forward side by side and is handled, central control unit (MCU) 1 with this message transmission to network modem module 2, network modem module 2 is modulated this information, network modem module 2 by audio interface 4 with this message transmission to communication terminal; Communication terminal transfers to network modem module 2 with the network user's voice messaging by audio interface 4, network modem module 2 carries out demodulation with this information, network modem module 2 with this message transmission to central control unit (MCU) 1, central control unit (MCU) 1 carries out format analysis processing and deciphering with this information, to Audio Processing Unit 3, Audio Processing Unit 3 contracts this information decompress(ion) and is reduced into voice with this message transmission for central control unit (MCU) 1.Said process has been realized the enciphered message transmission of communication terminal.
With reference to Fig. 3, employing has the encrypting and decrypting accessory of the encrypting and decrypting unit 5 realization data ciphering and decipherings of deciphering chip, is made up of central control unit (MCU) 1, network signal modem module, Audio Processing Unit 3, encrypting and decrypting unit 5 and audio interface 4.This accessory links to each other with communication terminal by audio interface 4.Audio Processing Unit 3 is converted into local user's voice messaging digital information and carries out encoding compression, Audio Processing Unit 3 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is encrypted this information, encrypting and decrypting unit 5 with this message transmission to central control unit (MCU) 1,1 pair of this information of central control unit (MCU) is carried out format analysis processing, central control unit (MCU) 1 with this message transmission to network modem module 2, network modem module 2 is modulated this information, network modem module 2 by audio interface 4 with this message transmission to communication terminal; Communication terminal transfers to network modem module 2 with the network user's voice messaging by audio interface 4, network modem module 2 carries out demodulation with this information, network modem module 2 with this message transmission to central control unit (MCU) 1, central control unit (MCU) 1 carries out format analysis processing with this information, central control unit (MCU) 1 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is decrypted processing with this information, to Audio Processing Unit 3, Audio Processing Unit 3 contracts this information decompress(ion) and is reduced into voice with this message transmission in encrypting and decrypting unit 5.Said process has been realized the enciphered message transmission of communication terminal.
With reference to Fig. 4, adopt the SSX0902 safe processor 7 of can recombinating to realize the encrypting and decrypting accessory of data ciphering and decipherings, form by central control unit (MCU) 1, network signal modem module, Audio Processing Unit 3, encrypting and decrypting unit 5 and audio interface 4.This accessory links to each other with communication terminal by audio interface 4.Audio Processing Unit 3 is converted into local user's voice messaging digital information and carries out encoding compression, Audio Processing Unit 3 with this message transmission to encrypting and decrypting unit 5, SSX0902 in the encrypting and decrypting unit 57 pairs of these information of safe processor of can recombinating are encrypted, encrypting and decrypting unit 5 with this message transmission to central control unit (MCU) 1,1 pair of this information of central control unit (MCU) is carried out format analysis processing, central control unit (MCU) 1 with this message transmission to network modem module 2, network modem module 2 is modulated this information, network modem module 2 by audio interface 4 with this message transmission to communication terminal; Communication terminal transfers to network modem module 2 with the network user's voice messaging by audio interface 4, network modem module 2 carries out demodulation with this information, network modem module 2 with this message transmission to central control unit (MCU) 1, central control unit (MCU) 1 carries out format analysis processing with this information, central authorities controls central control units (MCU) 1 with this message transmission to encrypting and decrypting unit 5, SSX0902 in the encrypting and decrypting unit 5 safe processor 7 of can recombinating is decrypted processing with this information, to Audio Processing Unit 3, Audio Processing Unit 3 contracts this information decompress(ion) and is reduced into voice with this message transmission in encrypting and decrypting unit 5.Said process has been realized the enciphered message transmission of communication terminal.
With reference to Fig. 5, adopt TR600 cake core 8 to realize the encrypting and decrypting accessory that compress speech decompresses, form by central control unit (MCU) 1, network signal modem module, Audio Processing Unit 3, encrypting and decrypting unit 5 and audio interface 4.This accessory links to each other with communication terminal by audio interface 4.Audio Processing Unit 3 is converted into local user's voice messaging digital information and carries out encoding compression by TR600 chip 8, Audio Processing Unit 3 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is encrypted this information, encrypting and decrypting unit 5 with this message transmission to central control unit (MCU) 1,1 pair of this information of central control unit (MCU) is carried out format analysis processing, central control unit (MCU) 1 with this message transmission to network modem module 2, network modem module 2 is modulated this information, network modem module 2 by audio interface 4 with this message transmission to communication terminal; Communication terminal transfers to network modem module 2 with the network user's voice messaging by audio interface 4, network modem module 2 carries out demodulation with this information, network modem module 2 with this message transmission to central control unit (MCU) 1, central control unit (MCU) 1 carries out format analysis processing with this information, central control unit (MCU) 1 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is decrypted processing with this information, to Audio Processing Unit 3, Audio Processing Unit 3 contracts this information and is reduced into voice by TR600 cake core 8 decompress(ion)s with this message transmission in encrypting and decrypting unit 5.Said process has been realized the enciphered message transmission of communication terminal.
With reference to Fig. 6, when described encrypting and decrypting accessory was applied to intercom, this accessory linked to each other with intercom by audio interface 4.Audio Processing Unit 3 is converted into local user's voice messaging digital information and carries out encoding compression, Audio Processing Unit 3 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is encrypted this information, encrypting and decrypting unit 5 with this message transmission to central control unit (MCU) 1,1 pair of this information of central control unit (MCU) is carried out format analysis processing, central control unit (MCU) 1 with this message transmission to network modem module 2, network modem module 2 is modulated this information, network modem module 2 by audio interface 4 with this message transmission to intercom; Intercom transfers to network modem module 2 with the network user's voice messaging by audio interface 4, network modem module 2 carries out demodulation with this information, network modem module 2 with this message transmission to central control unit (MCU) 1, central control unit (MCU) 1 carries out format analysis processing with this information, central control unit (MCU) 1 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is decrypted processing with this information, to Audio Processing Unit 3, Audio Processing Unit 3 contracts this information decompress(ion) and is reduced into voice with this message transmission in encrypting and decrypting unit 5.Said process has been realized the enciphered message transmission of intercom.
With reference to Fig. 7, when described encrypting and decrypting accessory was applied to the radio station, this accessory linked to each other with the radio station by audio interface 4.Audio Processing Unit 3 is converted into local user's voice messaging digital information and carries out encoding compression, Audio Processing Unit 3 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is encrypted this information, encrypting and decrypting unit 5 with this message transmission to central control unit (MCU) 1,1 pair of this information of central control unit (MCU) is carried out format analysis processing, central control unit (MCU) 1 with this message transmission to network modem module 2, network modem module 2 is modulated this information, network modem module 2 by audio interface 4 with this message transmission to the radio station; The radio station transfers to network modem module 2 with the network user's voice messaging by audio interface 4, network modem module 2 carries out demodulation with this information, network modem module 2 with this message transmission to central control unit (MCU) 1, central control unit (MCU) 1 carries out format analysis processing with this information, central control unit (MCU) 1 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is decrypted processing with this information, to Audio Processing Unit 3, Audio Processing Unit 3 contracts this information decompress(ion) and is reduced into voice with this message transmission in encrypting and decrypting unit 5.Said process has been realized the enciphered message transmission in radio station.
With reference to Fig. 8, when described encrypting and decrypting accessory was applied to mobile phone, this accessory linked to each other with mobile phone by audio interface 4.Audio Processing Unit 3 is converted into local user's voice messaging digital information and carries out encoding compression, Audio Processing Unit 3 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is encrypted this information, encrypting and decrypting unit 5 with this message transmission to central control unit (MCU) 1,1 pair of this information of central control unit (MCU) is carried out format analysis processing, central control unit (MCU) 1 with this message transmission to network modem module 2, network modem module 2 is modulated this information, network modem module 2 by audio interface 4 with this message transmission to mobile phone; Mobile phone transfers to network modem module 2 with the network user's voice messaging by audio interface 4, network modem module 2 carries out demodulation with this information, network modem module 2 with this message transmission to central control unit (MCU) 1, central control unit (MCU) 1 carries out format analysis processing with this information, central control unit (MCU) 1 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is decrypted processing with this information, to Audio Processing Unit 3, Audio Processing Unit 3 contracts this information decompress(ion) and is reduced into voice with this message transmission in encrypting and decrypting unit 5.Said process has been realized the enciphered message transmission of mobile phone.
With reference to Fig. 9, when described encrypting and decrypting accessory was applied to telephone set, this accessory linked to each other with telephone set by audio interface 4.Audio Processing Unit 3 is converted into this locality digital information and carries out encoding compression with the product voice messaging, Audio Processing Unit 3 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is encrypted this information, encrypting and decrypting unit 5 with this message transmission to central control unit (MCU) 1,1 pair of this information of central control unit (MCU) is carried out format analysis processing, central control unit (MCU) 1 with this message transmission to network modem module 2, network modem module 2 is modulated this information, network modem module 2 by audio interface 4 with this message transmission to telephone set; Telephone set transfers to network modem module 2 with the network user's voice messaging by audio interface 4, network modem module 2 carries out demodulation with this information, network modem module 2 with this message transmission to central control unit (MCU) 1, central control unit (MCU) 1 carries out format analysis processing with this information, central control unit (MCU) 1 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is decrypted processing with this information, to Audio Processing Unit 3, Audio Processing Unit 3 contracts this information decompress(ion) and is reduced into voice with this message transmission in encrypting and decrypting unit 5.Said process has been realized the enciphered message transmission of telephone set.
With reference to Figure 10, when described encrypting and decrypting accessory was applied to satellite telephone, this accessory linked to each other with satellite telephone by audio interface 4.Audio Processing Unit 3 is converted into local user's voice messaging digital information and carries out encoding compression, Audio Processing Unit 3 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is encrypted this information, encrypting and decrypting unit 5 with this message transmission to central control unit (MCU) 1,1 pair of this information of central control unit (MCU) is carried out format analysis processing, central control unit (MCU) 1 with this message transmission to network modem module 2, network modem module 2 is modulated this information, network modem module 2 by audio interface 4 with this message transmission to satellite telephone; Satellite telephone transfers to network modem module 2 with the network user's voice messaging by audio interface 4, network modem module 2 carries out demodulation with this information, network modem module 2 with this message transmission to central control unit (MCU) 1, central control unit MCU carries out format analysis processing with this information, central control unit (MCU) 1 with this message transmission to encrypting and decrypting unit 5, deciphering chip in the encrypting and decrypting unit 5 is decrypted processing with this information, to Audio Processing Unit 3, Audio Processing Unit 3 contracts this information decompress(ion) and is reduced into voice with this message transmission in encrypting and decrypting unit 5.Said process has been realized the enciphered message transmission of satellite telephone.
Claims (9)
1. encrypting and decrypting accessory that is used for communication terminal, it is characterized in that: form by central control unit, network signal modem module, Audio Processing Unit, encrypting and decrypting unit and audio interface, can be with voice messaging digitlization and encoding compression, information after the compression is encrypted, modulate by the network modem module again; Also the network information that voice communication apparatus can be obtained is carried out demodulation by the network modem module, the information after the demodulation is decrypted, and this information decompressed is reduced into voice.This accessory includes an interface at least and is used for transfer of data.
2. the encrypting and decrypting accessory that is used for communication terminal according to claim 1 is characterized in that: can be connected to form the encrypting and decrypting unit with the encrypting and decrypting chip and realize the information encryption deciphering.
3. encrypting and decrypting accessory according to claim 1 and 2 is characterized in that: the chip of realizing the encrypting and decrypting function in its data ciphering and deciphering unit is SSX0902 with the logic technology of can the recombinating safe processor of can recombinating.
4. encrypting and decrypting accessory according to claim 1 and 2 is characterized in that: the chip of realizing the compress speech decompressing function in its Audio Processing Unit is a TR600 type speech chip.
5. when encrypting and decrypting accessory according to claim 1 and 2 is applied to intercom, it is characterized in that: be connected with the audio interface of simulation intercom, the simulation intercom can be received the audio signal transmission of Web broadcast to simulating intercom network signal modem module, carry out signal processing through simulation intercom network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the signal after handling to local user; Also local user's voice messaging can be carried out signal processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, simulation intercom network modem module, signal after handling is transferred to the simulation intercom, by the simulation intercom this signal is carried out Web broadcast, realize the coded communication of simulation intercom.
6. when encrypting and decrypting accessory according to claim 1 and 2 is applied to analog radio, it is characterized in that: be connected with the audio interface in radio station, the audio signal transmission that the radio station can be received Web broadcast is to radio station network modulating and demodulating signal unit, carry out signal processing through radio station network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the signal after handling to local user; Also local user's voice messaging can be carried out signal processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, radio station network modem module, signal after handling is transferred to the radio station, by the radio station this signal is carried out Web broadcast, realize the coded communication in radio station.
7. when encrypting and decrypting accessory according to claim 1 and 2 is applied to mobile phone, it is characterized in that: be connected with the audio interface of mobile phone, the network user's that mobile phone can be received audio signal transmission is to cell phone network modulating and demodulating signal unit, carry out signal processing through mobile phone network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the signal after handling to local user; Also local user's voice messaging can be carried out signal processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, cell phone network modem module, the signal after handling is transferred to mobile phone, this signal be transferred to network by mobile phone.
8. when encrypting and decrypting accessory according to claim 1 and 2 is applied to telephone set, it is characterized in that: be connected with the audio interface of phone, the network user's that phone can be received audio-frequency information transfers to PSTN network information modem module, carry out information processing through PSTN network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the information after handling to local user; Also local user's voice messaging can be carried out information processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, PSTN network modem module, with the message transmission after handling to phone, by phone with this message transmission to the PSTN network.
9. when encrypting and decrypting accessory according to claim 1 and 2 is applied to satellite telephone, it is characterized in that: be connected with the audio interface of satellite phone, the network user's that satellite phone can be received audio signal transmission is to satellite phone network signal modem module, carry out signal processing through satellite phone network modem module, central signal processing unit, encrypting and decrypting unit, Audio Processing Unit, export the signal after handling to local user; Also local user's voice messaging can be carried out signal processing through Audio Processing Unit, encrypting and decrypting unit, central signal processing unit, satellite phone network modem module, signal after handling is transferred to satellite phone, by satellite phone this signal is transferred to network, realize the coded communication of satellite phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101620462A CN101997954A (en) | 2009-08-10 | 2009-08-10 | Encryption and decryption accessory for communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101620462A CN101997954A (en) | 2009-08-10 | 2009-08-10 | Encryption and decryption accessory for communication terminal |
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| Publication Number | Publication Date |
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| CN101997954A true CN101997954A (en) | 2011-03-30 |
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| CN2009101620462A Pending CN101997954A (en) | 2009-08-10 | 2009-08-10 | Encryption and decryption accessory for communication terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107880A (en) * | 2011-11-09 | 2013-05-15 | 深圳市中磁计算机技术有限公司 | Safety certificate device |
| CN105530635A (en) * | 2014-09-30 | 2016-04-27 | 易讯科技股份有限公司 | Communication terminal encryption device |
| CN108243161A (en) * | 2016-12-26 | 2018-07-03 | 北京润信恒达科技有限公司 | A kind of terminal speech encryption method and voice encryption system |
| CN109905367A (en) * | 2019-01-23 | 2019-06-18 | 广州市聚星源科技有限公司 | Speech ciphering method based on the air-ground call of VOIP |
-
2009
- 2009-08-10 CN CN2009101620462A patent/CN101997954A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107880A (en) * | 2011-11-09 | 2013-05-15 | 深圳市中磁计算机技术有限公司 | Safety certificate device |
| CN103107880B (en) * | 2011-11-09 | 2015-09-09 | 深圳市中磁计算机技术有限公司 | Safety certification device |
| CN105530635A (en) * | 2014-09-30 | 2016-04-27 | 易讯科技股份有限公司 | Communication terminal encryption device |
| CN108243161A (en) * | 2016-12-26 | 2018-07-03 | 北京润信恒达科技有限公司 | A kind of terminal speech encryption method and voice encryption system |
| CN109905367A (en) * | 2019-01-23 | 2019-06-18 | 广州市聚星源科技有限公司 | Speech ciphering method based on the air-ground call of VOIP |
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Application publication date: 20110330 |