CN1747370B - Apparatus and method for realizing end-to-end enciphering telecommunication based on bluetooth wireless connection - Google Patents
Apparatus and method for realizing end-to-end enciphering telecommunication based on bluetooth wireless connection Download PDFInfo
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- CN1747370B CN1747370B CN 200410040653 CN200410040653A CN1747370B CN 1747370 B CN1747370 B CN 1747370B CN 200410040653 CN200410040653 CN 200410040653 CN 200410040653 A CN200410040653 A CN 200410040653A CN 1747370 B CN1747370 B CN 1747370B
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Abstract
The device includes blue tooth access unit and blue tooth encipherer. The access unit connects to telephone line network, and the encipherer connects to access unit wirelessly via data channel. When the access units are installed at both ends of telephone line network, with encipherers at both ends of telephone line network and the blue tooth data channel between access unit and encipherer, the end to end encrypting communication is implemented. When a digital privacy telephone set is connected at one end of telephone line network, via access unit and encipherer, the privacy call is implemented. When a GSM network is connected to one end of telephone line network, it can implement encrypting mobile phone communication.
Description
Technical field:
The present invention relates to the secrecy technology of mobile communication and cable telephone network communication, particularly a kind of the connection based on blue teeth wireless realized end-to-end speech, data encryption communicating devices, and realizes end-to-end speech, data encryption method for communicating with this device.
Background technology:
Cable telephone network is the fixed telephone network that is most widely used in the world at present, and the user is billions of.Because cable telephone network extends in all direction, and makes contact on the circuit of cable telephone network, the disabled user uses the simple technology information of validated users such as intercepted call, fax, data easily, so the Communication Security Problem of cable telephone network is very outstanding.
In view of the insecurity of in cable telephone network, communicating by letter; existing many companies develop relevant encryption device both at home and abroad; in order to the legitimate rights and interests of protecting validated user in cable telephone network, to communicate by letter, as incorporate telephone cipher device, entrance guard's formula telephone cipher device, the two-in-one crypto of entrance guard's formula phone call/facsimile etc.But wired access unit in the existing cable telephone network encryption device and enciphering/deciphering unit (comprising microphone and receiver) adopt wired connection, cause using inconvenience, very flexible; And because volume is big, it is easy to carry to go out.
Summary of the invention:
The objective of the invention is to: for the user provide a kind of communication security, easy to use flexibly, connect the method that realizes end-to-end speech, data message coded communication based on blue teeth wireless.
Another object of the present invention is: realize the used device of this safety communicating method for the user provides.
The objective of the invention is to realize by the enforcement following technical proposals:
A kind of method that realizes end-to-end speech, data message coded communication that connects based on blue teeth wireless, include: wired access device of supporting bluetooth and Bluetooth encryption device, (hereinafter to be referred as the Bluetooth encryption external member), wherein the wired access device of bluetooth directly is connected with the telephone network channel; And the Bluetooth encryption device is realized wireless connections by the blue-teeth data channel between self and the supporting wired access device of bluetooth; It is characterized in that:
(1) all be equipped with under the Bluetooth encryption external member situation at the cable telephone network two ends, its coded communication process end to end is:
1. the calling party inputs to the Bluetooth encryption device of being held with speech, the data message of communication, carries out information encryption; 2. encrypted speech, data message by the blue-teeth data channel between this encryption equipment and the supporting wired access device of transmitting terminal bluetooth, send to the corresponding wired access device of bluetooth; 3. the wired access device of the bluetooth of this transmitting terminal with the enciphered message that receives, arrives the wired access device of bluetooth of receiving terminal by the cable telephone network Channel Transmission; 4. the wired access device of receiving terminal bluetooth, the blue-teeth data channel by between himself and the supporting receiving terminal Bluetooth encryption device sends to corresponding receiving terminal Bluetooth encryption device with enciphered message; 5. receiving terminal Bluetooth encryption device is deciphered enciphered message, is reduced into the plaintext speech, the data that are received and offers the recipient.
(2) at telephone network channel one end the Bluetooth encryption external member is housed, the other end is equipped with under the cabled digital confidential phone situation, and coded communication process end to end is:
If A calling party holds and the supporting Bluetooth encryption device of the wired access device of bluetooth, its coded communication process end to end is: 1), the calling party with communication speech, data message, input to the Bluetooth encryption device of being held and carry out information encryption; 2), encrypted speech, data message, the blue-teeth data channel by between this encryption equipment and the supporting wired access device of transmission bluetooth sends to the wired access device of corresponding sending terminal bluetooth; 3), the wired access device of transmitting terminal bluetooth is the enciphered message that receives, and by the telephone network channel, is transferred to the numeric security telephone set of receiving terminal, by this telephone set enciphered message is reduced into expressly speech or data.
If B calling party holds the numeric security telephone set, its coded communication process end to end is: 1) calling party is by the numeric security telephone set, with speech or data encryption; 2) speech or the data message of being encrypted by this telephone set, by the cable telephone network Channel Transmission to the wired access device of receiving terminal bluetooth; 3) the wired access device of receiving terminal bluetooth, the blue-teeth data channel by between himself and the supporting receiving terminal Bluetooth encryption device is sent to corresponding receiving terminal Bluetooth encryption device with encrypted voice or data message; 4) receiving terminal Bluetooth encryption device with encrypted voice or data message deciphering, becomes speech or data delivery to give the recipient information reverting after the deciphering.
(3) at telephone network channel one end the Bluetooth encryption external member is housed, the channel other end connects the GSM network, and reception or transmitting terminal are that GSM encrypts under the mobile phone situation, and coded communication process end to end is:
If a calling party holds and the supporting Bluetooth encryption device of the wired access device of bluetooth, its end to end communication process be: 1), the calling party inputs to the speech or the data message of communication the Bluetooth encryption device of being held and encrypt; 2), encrypted speech or data message, the blue-teeth data channel by between this encryption equipment and the supporting wired access device of transmitting terminal bluetooth sends to the wired access device of corresponding sending terminal bluetooth; 3), the wired access device of transmitting terminal bluetooth, with encrypted voice or the data message that receives, by the cable telephone network Channel Transmission to the GSM network; 4), callee's GSM encrypts mobile phone, receives encrypted voice or data message from the GSM network, and with encrypted voice or data message deciphering, be reduced into expressly speech or data and offer the recipient.
Encrypt mobile phone if b calling party holds GSM, then its coded communication process end to end is: after 1) GSM encrypts mobile phone speech or data message is encrypted, by the GSM Network Transmission to the telephone network channel; 2) the telephone network channel is delivered to the wired access device of receiving terminal bluetooth with encrypted voice or data message; 3) the wired access device of receiving terminal bluetooth, the blue-teeth data channel by between himself and the receiving terminal Bluetooth encryption device is sent to receiving terminal Bluetooth encryption device with encrypted voice or data message; 4) receiving terminal Bluetooth encryption device with the deciphering of encrypted voice or data message, flows to the recipient after being reduced into speech or data.
Realize that the end-to-end speech of the present invention, the used device of data message encryption communication method have: the wired access device external member of Bluetooth encryption device and bluetooth, the cabled digital confidential phone, the GSM cellular mobile communication is encrypted mobile phone; Wherein: it is the commercially available prod that cabled digital confidential phone and GSM cellular mobile communication are encrypted mobile phone.
Bluetooth encryption device of the present invention, comprise by the blue tooth interface module, the encryption and decryption module, voice compression/decompression module, data interface module, A/D D/A module, control module, Keysheet module, display module and power module are formed, it is characterized in that: A/D D/A module is connected with voice compression/decompression module, the encryption and decryption module respectively with voice compression/decompression module, the blue tooth interface module, data interface module connects, control module respectively with the blue tooth interface module, the encryption and decryption module, voice compression/decompression module, A/D D/A module connects, and Keysheet module all is connected with power module with control module respectively with display module.
The wired access device of bluetooth of the present invention, comprise by blue tooth interface module, control module, MODEM module, two/four line conversion modules and power module and forming, it is characterized in that: control module is connected with power module with blue tooth interface module, MODEM module respectively, and the MODEM module is connected with two/four line conversion modules.
The invention has the advantages that: because the wired access device of bluetooth directly is connected with the telephone network channel, and the wired access device of bluetooth is by blue-teeth data channel and the wireless connections of Bluetooth encryption device, encrypt the enciphered message that mobile phone or cabled digital confidential phone produce by the encryption equipment of transmitting terminal or GSM, or through the blue-teeth data channel deliver to the wired access device of transmitting terminal bluetooth, again through telephone network channel, the wired access device of receiving terminal bluetooth, and the blue-teeth data channel pass to the receiving terminal encryption equipment; Or by the GSM Network Transmission to the telephone network channel, in pass to the receiving terminal encryption equipment through the wired access device of receiving terminal bluetooth, blue-teeth data channel; Or by the telephone network channel, the enciphered message of transmission cabled digital confidential phone is to the wired access device of receiving terminal bluetooth, in pass to the receiving terminal encryption equipment through the blue-teeth data channel; The overall process of these three kinds of message transmission is removed input and is received two ends, and information is in encrypted state always, has therefore ensured the safety of message transmission; Another advantage is: because relevant user interface, all be arranged on the Bluetooth encryption device as keyboard, receiver and microphone etc., and, the wired access device of Bluetooth encryption device and bluetooth is disconnected from each other, the Bluetooth encryption device is of portable form, therefore improved the convenience and the flexibility of operation, being convenient to promote should.
Description of drawings
Fig. 1 is for to be equipped with under the Bluetooth encryption external member situation at telephone network channel two ends, the schematic diagram of end-to-end encrypted communication;
Fig. 2 is for to be equipped with the Bluetooth encryption external member at telephone network channel one end, and the other end is equipped with under the cabled digital confidential phone situation, the schematic diagram of end-to-end encrypted communication;
Fig. 3 is for to be equipped with the Bluetooth encryption external member at telephone network channel one end, and the channel other end connects the GSM network, and reception or transmitting terminal are that GSM encrypts under the mobile phone situation schematic diagram of end-to-end encrypted communication;
Fig. 4 is a Bluetooth encryption device structural representation
Fig. 5 is the wired access device structural representation of bluetooth
Mark among the figure: 1 is bluetooth channel, and 2 is data terminal, and 3 is microphone, and 4 is earphone, and 5 is the Bluetooth encryption device, and 6 is the wired access device of bluetooth, and 7 is the telephone network channel.
Embodiment
A kind of method based on the end-to-end speech of blue teeth wireless connection realization, data message coded communication includes: wired access device of supporting bluetooth and Bluetooth encryption device, and wherein the wired access device of bluetooth directly is connected with the telephone network channel; And the Bluetooth encryption device, then by self with the supporting wired access device of bluetooth between blue-teeth data channel realization wireless connections; Be equipped with under the Bluetooth encryption external member situation at telephone network channel two ends, coded communication process end to end is:
1. the calling party is by data terminal 2 or microphone 3, data, speech information with communication, input to the transmitting terminal Bluetooth encryption device of being held 5, the A/D module of speech information in Bluetooth encryption device 5, convert digital quantity to and encode by analog quantity, then via voice compression/decompression module, coded speech is compressed, form and the suitable low rate coding speech of cable telephone network channel speed, by the encryption and decryption module this coded speech is encrypted again, delivered to the blue tooth interface module then and launch; Data message is through the data interface module of Bluetooth encryption device 5, finish the encryption and decryption module of external data terminal 2 to Bluetooth encryption device 5, the RS232 of transmission data → Transistor-Transistor Logic level conversion, the encryption and decryption module is encrypted the data that send from data interface module, so ciphered data information is delivered to the blue tooth interface module and is launched; 2. encrypted speech, data message by the Bluetooth ACL link between this encryption equipment 5 and the supporting wired access device 6 of bluetooth, send to the corresponding wired access device 6 of bluetooth; 3. the wired access device 6 of this bluetooth, receive the enciphered message of sending by its blue tooth interface module, by the MODEM module coded signal is modulated, carry out of the conversion of four lines by two/four line conversion modules again, be transferred to the wired access device of bluetooth of terminal by two wires telephone network channel 7 to the two wires; 4. the wired access device of the bluetooth of this network termination by its two/four lines conversion module, carries out the two wires after the conversion of four lines, and enciphered message is sent to the MODEM module and carries out demodulation, launches by its blue tooth interface module then; 5. the enciphered message that is launched by the Bluetooth ACL link between wired access device of the bluetooth of this cable telephone network channel terminal self and the supporting Bluetooth encryption device, is sent to corresponding receiving terminal Bluetooth encryption device with enciphered message; 6. receiving terminal Bluetooth encryption device, by its blue tooth interface module, the enciphered message that reception sends, and deliver to the encryption and decryption module, with encrypted voice and data decryption, the decompression that voice compression/decompression module carries out speech sent in the plaintext speech that will decipher then, carried out the decoding of speech again by the D/A coding/decoding module, digital quantity is reduced into the plaintext speech of analog quantity, emits by earphone 4; By the data message of encryption and decryption module decrypts, deliver to data interface module, finish the encryption and decryption module of transmission data from the Bluetooth encryption device, to the TTL → RS232 level conversion of external data terminal 2, data message is received by external data terminal 2.
A kind of method based on the end-to-end speech of blue teeth wireless connection realization, data message coded communication includes: wired access device of supporting bluetooth and Bluetooth encryption device, and wherein the wired access device of bluetooth directly is connected with the telephone network channel; And the Bluetooth encryption device, then by self with the supporting wired access device of bluetooth between blue-teeth data channel realization wireless connections;
At telephone network channel one end the Bluetooth encryption external member is housed, the other end is equipped with under the situation of cabled digital confidential phone, and the process of end-to-end encrypted communication is:
If A calling party holds the Bluetooth encryption device 5 supporting with the wired access device of bluetooth 6, its coded communication process end to end is: 1), the calling party with communication speech, data message, inputing to the Bluetooth encryption device of being held 5 carries out information encryption (its process is identical with description process among the embodiment 1, and is simple at this.); 2), encrypted speech, data message, the blue-teeth data channel ACL link by between this encryption equipment 5 and the supporting wired access device 6 of transmitting terminal bluetooth sends to the wired access device 6 of corresponding sending terminal bluetooth; 3), the wired access device 6 of transmitting terminal bluetooth is the enciphered message that receives, (its process is identical with description process among the embodiment 1, and is simple at this by 7 transmission of telephone network channel.) to the cabled digital confidential phone of receiving terminal, enciphered message is reduced into expressly speech or data by this telephone set.
If B calling party holds the cabled digital confidential phone, its coded communication process end to end is: 1) calling party encrypts speech or data message by the cabled digital confidential phone; 2) speech or the data message of being encrypted by this telephone set transfers to the wired access device 6 of receiving terminal bluetooth by telephone network channel 7; 3) the wired access device 6 of the bluetooth of telephone network channel receiving terminal by its two/four lines conversion module, carries out the two wires after the conversion of four lines, and enciphered message is sent to the MODEM module and modulates, and launches by its blue tooth interface module then; 4) enciphered message that is launched, the Bluetooth ACL link by between wired access device 6 of receiving terminal bluetooth and the receiving terminal Bluetooth encryption device 5 is sent to receiving terminal Bluetooth encryption device 5; 5) receiving terminal Bluetooth encryption device 5, behind encrypted voice or data decryption, (its process is identical with description process among the embodiment 1, and is simple at this to be delivered to the recipient.)。
A kind of method based on the end-to-end speech of blue teeth wireless connection realization, data message coded communication includes: wired access device of supporting bluetooth and Bluetooth encryption device, and wherein the wired access device of bluetooth directly is connected with the telephone network channel; And the Bluetooth encryption device, then by self with the supporting wired access device of bluetooth between blue-teeth data channel realization wireless connections;
At telephone network channel one end the Bluetooth encryption external member is housed, the channel other end connects the GSM network, and reception or transmitting terminal are that GSM encrypts under the mobile phone situation, and coded communication process end to end is:
1), the calling party inputs to the speech or the data message of communication the Bluetooth encryption device of being held 5 and encrypt (process is with example 1) if a calling party holds and the supporting Bluetooth encryption device of the wired access device of bluetooth, its coded communication process end to end is:; 2), encrypted speech or data message, the blue-teeth data channel ACL link by between this encryption equipment 5 and the supporting wired access device 6 of transmitting terminal bluetooth sends to the wired access device 6 of corresponding sending terminal bluetooth; 3), the wired access device 6 of transmitting terminal bluetooth, with encrypted voice or the data message that receives, by telephone network channel 7 transmission (process is with example 1) to the GSM network; 4), callee's GSM encrypts mobile phone, receives encrypted voice or data message from the GSM network, and with encrypted voice or data message deciphering, be reduced into expressly speech or data and offer the recipient.
Encrypt mobile phone if b calling party holds GSM, then its coded communication process end to end is: after 1) GSM encrypts mobile phone speech or data message is encrypted, by the GSM Network Transmission to telephone network channel 7; 2) the telephone network channel 7, with encrypted voice or data information transfer to the wired access device of receiving terminal bluetooth; 3) the wired access device of receiving terminal bluetooth, the blue-teeth data channel ACL link by between himself and the receiving terminal Bluetooth encryption device is sent to receiving terminal Bluetooth encryption device with encrypted voice or data message; 4) receiving terminal Bluetooth encryption device, with the deciphering of encrypted voice or data message, be reduced into speech or data after (process is with example 1) flow to the recipient.
The wired access device of bluetooth that above the present invention is used, wherein respectively form assembly:
The blue tooth interface module adopts the BlueRS+A bluetooth module of the general Stollmann company that meets Bluetooth specification;
The MODEM module adopts the Si2457 of SILICON company, for meeting the modulation integrated circuit (IC) chip of cable telephone network standard;
The Si3018 of SILICON company and the peripheral circuit that provides thereof are provided two/four line conversion modules, and be supporting with the MODEM module;
Power module adopts the MIC2210 of Micrel company, for each module of the wired access device of bluetooth provides working power;
Control module is made up of CPU and peripheral circuit thereof, and CPU adopts the single-chip microcomputer C8051F020 of Cygnal company;
The Bluetooth encryption device that the present invention is used, wherein respectively form assembly:
A/D D/A module for integrating A/D, the D/A conversion and the monolithic integrated circuit of voice encoding/decoding function, adopts the MC145481 of MOTOROLA company, reducing the printed board size, and then dwindles the machine volume of Bluetooth encryption device;
Data interface module adopts the MAX3243 of MAXIM company;
Voice compression/decompression module adopts special-purpose low rate vocoder, the AMBE1000 of DVSI company;
The encryption and decryption module adopts and holds the CPU card of strange company
The blue tooth interface module adopts the BlueRS+A bluetooth module of the general Stollmann company that meets Bluetooth specification;
Power module adopts the MIC2210 of Micrel company, for each module of Bluetooth encryption device provides working power;
Control module is made up of CPU and peripheral circuit thereof, and CPU adopts the single-chip microcomputer C8051F020 of Cygnal company;
Keysheet module adopts the EX64 of CPU and Actel company;
Display module adopts the MOBI2007 LCD of CPU and Samsung.
Claims (2)
1. connect to realize including the method for end-to-end speech, data message coded communication based on blue teeth wireless for one kind: wired access device of supporting bluetooth and Bluetooth encryption device, wherein the wired access device of bluetooth directly is connected with the telephone network channel; And the Bluetooth encryption device, then by self with the supporting wired access device of bluetooth between blue-teeth data channel realization wireless connections; It is characterized in that:
(1) all be equipped with under the Bluetooth encryption external member situation at the cable telephone network two ends, its coded communication process end to end is:
1. the calling party inputs to the Bluetooth encryption device of being held with speech, the data message of communication, carries out information encryption; 2. encrypted speech, data message by the blue-teeth data channel between this encryption equipment and the supporting wired access device of transmitting terminal bluetooth, send to the corresponding wired access device of bluetooth; 3. the wired access device of the bluetooth of this transmitting terminal with the enciphered message that receives, arrives the wired access device of bluetooth of receiving terminal by the cable telephone network Channel Transmission; 4. the wired access device of receiving terminal bluetooth, the blue-teeth data channel by between himself and the supporting receiving terminal Bluetooth encryption device sends to corresponding receiving terminal Bluetooth encryption device with enciphered message; 5. receiving terminal Bluetooth encryption device is deciphered enciphered message, is reduced into the plaintext speech, the data that are received and offers the recipient;
(2) at telephone network channel one end the Bluetooth encryption external member is housed, the other end is equipped with under the cabled digital confidential phone situation, and coded communication process end to end is:
If A calling party holds and the supporting Bluetooth encryption device of the wired access device of bluetooth, its coded communication process end to end is: 1), the calling party with communication speech, data message, input to the Bluetooth encryption device of being held and carry out information encryption; 2), encrypted speech, data message, the blue-teeth data channel by between this encryption equipment and the supporting wired access device of transmitting terminal bluetooth sends to the wired access device of corresponding sending terminal bluetooth; 3), the wired access device of transmitting terminal is the enciphered message that receives, and by the telephone network channel, is transferred to the numeric security telephone set of receiving terminal, by this telephone set enciphered message is reduced into expressly speech or data;
If B calling party holds the numeric security telephone set, its coded communication process end to end is: 1) calling party encrypts speech or data message by the numeric security telephone set; 2) speech or the data message of being encrypted by this telephone set, by the cable telephone network Channel Transmission to the wired access device of receiving terminal bluetooth; 3) the wired access device of receiving terminal bluetooth, the blue-teeth data channel by between himself and the supporting receiving terminal Bluetooth encryption device is sent to corresponding receiving terminal Bluetooth encryption device with encrypted voice or data message; 4) receiving terminal Bluetooth encryption device with encrypted voice or data message deciphering, becomes speech or data delivery to give the recipient information reverting after the deciphering;
(3) at telephone network channel one end the Bluetooth encryption external member is housed, the channel other end connects the GSM network, and reception or transmitting terminal are that GSM encrypts under the mobile phone situation, and coded communication process end to end is:
1), the calling party inputs to the speech or the data message of communication the Bluetooth encryption device of being held and encrypt if a calling party holds and the supporting Bluetooth encryption device of the wired access device of bluetooth, its coded communication process end to end is:; 2), encrypted speech or data message, the blue-teeth data channel by between this encryption equipment and the supporting wired access device of transmitting terminal bluetooth sends to the wired access device of corresponding sending terminal bluetooth; 3), the wired access device of transmitting terminal bluetooth, with encrypted voice or the data message that receives, by the cable telephone network Channel Transmission to the GSM network; 4), callee's GSM encrypts mobile phone, receives encrypted voice or data message from the GSM network, and with encrypted voice or data message deciphering, be reduced into expressly speech or data and offer the recipient;
Encrypt mobile phone if b calling party holds GSM, then its coded communication process end to end is: after 1) GSM encrypts mobile phone speech or data message is encrypted, by the GSM Network Transmission to the telephone network channel; 2) the telephone network channel with encrypted voice or data information transfer to the wired access device of receiving terminal bluetooth; 3) the wired access device of receiving terminal bluetooth, the blue-teeth data channel by between himself and the receiving terminal Bluetooth encryption device is sent to receiving terminal Bluetooth encryption device with encrypted voice or data message; 4) receiving terminal Bluetooth encryption device with the deciphering of encrypted voice or data message, flows to the recipient after being reduced into speech or data.
2. according to the described end-to-end speech of claim 1, the used device of data message encryption communication method, include the wired access device external member of Bluetooth encryption device and bluetooth, wherein: the Bluetooth encryption device, form by blue tooth interface module, encryption and decryption module, voice compression/decompression module, data interface module, A/DD/A module, control module, Keysheet module, display module and power module; The wired access device of bluetooth is made up of blue tooth interface module, control module, MODEM module, two/four line conversion modules and power module; It is characterized in that:
In the Bluetooth encryption device, its A/D D/A module is connected with voice compression/decompression module, the encryption and decryption module is connected with voice compression/decompression module, blue tooth interface module, data interface module respectively, control module is connected with blue tooth interface module, encryption and decryption module, voice compression/decompression module, A/DD/A module respectively, and Keysheet module all is connected with power module with control module respectively with display module;
In the wired access device of bluetooth, its control module is connected with power module with blue tooth interface module, MODEM module respectively, and two/four line conversion modules then are connected with the MODEM module;
The function of each module and signal processing flow are as follows in the Bluetooth encryption device:
Speech processes:
Transmission flow:
A/D D/A module is the simulated voice information digitalization, pass to voice compression/decompression module then and carry out compressing and converting and be the sound sign indicating number, again by the encryption and decryption module to sound sign indicating number voice encryption, deliver to the emission of blue tooth interface module at last;
Receive flow process:
Earlier demodulate encrypted speech, it is decrypted into expressly voice, give voice compression/decompression module again and decompress, become analog voice by A/D D/A module converts at last by the encryption and decryption module by the blue tooth interface module;
Data processing:
Transmission flow:
After data interface module is received clear data, send the encryption and decryption module encrypt, give the emission of blue tooth interface module again;
Receive flow process:
Earlier demodulate enciphered data, by the encryption and decryption module decrypts, give data terminal by data interface module more again by the blue tooth interface module;
The function and the signal processing flow of each module are as follows in the wired access device of bluetooth:
Transmission flow:
The blue tooth interface module receives the encrypted data signal that the Bluetooth encryption device sends, by its MODEM module encrypted data signal is modulated, carry out of the conversion of four lines by two/four line conversion modules again to the two wires, then by two wires telephone network channel with described direct information receiving terminal;
Receive flow process:
Two/four line conversion modules receive modulation signal from cable telephone network, carry out demodulation through handing over the MODEM module after two/four line conversion, again the data after the demodulation are sent to the Bluetooth encryption device by the blue tooth interface module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200410040653 CN1747370B (en) | 2004-09-09 | 2004-09-09 | Apparatus and method for realizing end-to-end enciphering telecommunication based on bluetooth wireless connection |
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| CN 200410040653 CN1747370B (en) | 2004-09-09 | 2004-09-09 | Apparatus and method for realizing end-to-end enciphering telecommunication based on bluetooth wireless connection |
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| CN1747370B true CN1747370B (en) | 2011-01-12 |
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| CN101674107A (en) * | 2009-08-13 | 2010-03-17 | 上海酷吧信息技术有限公司 | Method for transmitting encrypted electronic coupons by using Bluetooth |
| WO2012034279A1 (en) * | 2010-09-16 | 2012-03-22 | Igrs Engineering Lab Ltd. | Remote mobile device information retrieval |
| CN102457308A (en) * | 2011-12-13 | 2012-05-16 | 陈涛 | High-speed near field communication device |
| CN105681310A (en) * | 2016-01-26 | 2016-06-15 | 重庆邮电大学 | Bluetooth based voice source real-time voice encryption method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1379343A (en) * | 2002-04-30 | 2002-11-13 | 北京信源咨讯信息技术有限公司 | Entrance guard method and system using blue tooth technique in wireless authentication and data transmitting/receiving |
| WO2004057827A2 (en) * | 2002-12-20 | 2004-07-08 | Christopher White | Secure transmission of audio signals |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1379343A (en) * | 2002-04-30 | 2002-11-13 | 北京信源咨讯信息技术有限公司 | Entrance guard method and system using blue tooth technique in wireless authentication and data transmitting/receiving |
| WO2004057827A2 (en) * | 2002-12-20 | 2004-07-08 | Christopher White | Secure transmission of audio signals |
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