CN102427394A - Encryption frequency modulation broadcast emission and receiving method and apparatuses thereof - Google Patents
Encryption frequency modulation broadcast emission and receiving method and apparatuses thereof Download PDFInfo
- Publication number
- CN102427394A CN102427394A CN2011102288363A CN201110228836A CN102427394A CN 102427394 A CN102427394 A CN 102427394A CN 2011102288363 A CN2011102288363 A CN 2011102288363A CN 201110228836 A CN201110228836 A CN 201110228836A CN 102427394 A CN102427394 A CN 102427394A
- Authority
- CN
- China
- Prior art keywords
- voice
- encryption
- enciphered message
- module
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
The invention relates to an encryption frequency modulation broadcast emission method. The method comprises the following steps: S1. carrying out A/D transition to a received voice simulation signal so as to generate a digital signal; S2. separating a positive half cycle of the voice and a negative half cycle and carrying out inversion; S3. adding a computer preset speed and a frequency in the digital signal, generating pre-sending information and converting into encryption information; S4. receiving the pre-sending information, carrying out digital to analog conversion and generating a second simulation signal; S5. sending the second simulation signal. The invention also discloses an encryption frequency modulation broadcast emission apparatus and an encryption frequency modulation broadcast receiving method and the apparatus thereof. By using the encryption frequency modulation broadcast emission and receiving method and the apparatuses thereof, a computer program is encrypted so as to enhance security. Computer program control is used so as to simplify a production operation, reduce production difficulty, and increase a production efficiency and stability. A user can use conveniently. Therefore, the encryption frequency modulation broadcast emission/ receiving apparatus and the encryption method can be widely used.
Description
Technical field
The present invention relates to the FM broadcasting field, relate in particular to a kind of encryption FM broadcasting transmission/reception and encryption method thereof.
Background technology
Present frequency modulation is encrypted, and its encryption method is to encrypt with the principle of frequency deviation, and it is poor that such method is encrypted confidentiality; As easy as rolling off a log being decrypted, single encryption Frequency point can only a client use, and transmitter will use dedicated transmitter; Increase the cost expenditure of business unit, be not easy to the user and use; Receiver adopts the FM reception chip of simulation, and peripheral cell is many, need transfer during production, has increased the difficulty of producing, and has reduced production efficiency and stability, so be not used widely up to now.
Therefore, a kind of strong security is provided, reduction production difficulty is enhanced productivity and stable encryption FM broadcasting transmission/reception and encryption method thereof necessitates.
Summary of the invention
The technical problem that the present invention will solve is, a kind of strong security is provided, and has reduced the production difficulty, has improved encryption FM broadcasting transmission/reception and the encryption method thereof of production efficiency with stability.
The present invention solves first technical scheme that its technical problem adopts: a kind of encryption FM broadcasting launching technique is provided, comprises:
S1. the voice that receive are simulated signal and carry out the A/D conversion, generate digital signal;
S2. isolate positive half cycle of voice and negative half period and be inverted;
S3. in described digital signal, add computer predetermined speed and frequency, encrypt, generate enciphered message;
S4. receive described enciphered message and carry out digital-to-analogue conversion, generate analog signal;
S5. launch described analog signal.
In encryption FM broadcasting launching technique of the present invention, also comprise step S0 before the said step S1, specifically: the reception voice also amplify.
The present invention solves second technical scheme that its technical problem adopts and provides a kind of encryption FM broadcasting emitter, comprising:
The A/D modular converter is used for that the voice that receive are simulated signal and carries out the A/D conversion, generates digital signal;
Separation module links to each other with the A/D modular converter, is used to isolate positive half cycle of voice and negative half period and is inverted;
Encrypting module links to each other with described modular converter, is used for adding calculating in described digital signal
Predetermined speed and frequency are encrypted, and generate enciphered message;
Sending module links to each other with described encrypting module, is used to send described enciphered message.
In encryption FM broadcasting transmitting party device of the present invention, also comprise voice amplification module and D/A modular converter, described voice amplification module is used to receive voice and amplifies; Described D/A modular converter is used to receive described enciphered message and carries out digital-to-analogue conversion, generates second analog signal and emission.
The present invention solves the 3rd technical scheme that its technical problem adopts and provides a kind of encryption FM broadcasting method of reseptance, comprising:
T1. isolate positive half cycle of voice and negative half period;
T2. detect and whether have identical speed and frequency in the described enciphered message;
If T3., be inverted enciphered message and reduce deciphering, the generation decrypted signal.
In encryption FM broadcasting method of reseptance of the present invention, also comprise step T0 before the said step T1, specifically: the enciphered message that reception needs also shows.
In encryption FM broadcasting method of reseptance of the present invention, also comprise step T4 behind the said step T3, specifically: receive described decrypted signal and amplify and filtering, output to the equipment of raising one's voice.
The present invention solves the 4th technical scheme that its technical problem adopts and provides a kind of encryption FM broadcasting receiving system, comprising:
Separation module is used to isolate positive half cycle of voice and negative half period;
Detection module links to each other with separation module, detects whether have identical speed and frequency in the described enciphered message;
Deciphering module links to each other with described detection module, is used to be inverted enciphered message and reduces deciphering, generates decrypted signal.
In encryption FM broadcasting receiving system of the present invention, also comprise display module and amplification filtering module, described display module is used to receive the enciphered message of needs and show; Described amplification filtering module is used to receive described decrypted signal and amplifies and carry out filtering, outputs to the equipment of raising one's voice.
According to encryption FM broadcasting emission of the present invention and method of reseptance and device, the program encryption that uses a computer has strengthened confidentiality; Production process has been simplified in the program control that uses a computer, and has reduced the production difficulty; Production efficiency and stability have been improved; Be user-friendly to, so the present invention encrypts the FM broadcasting transmission/reception and encryption method can be applied, have and imitate high using value.
Description of drawings
Fig. 1 encrypts FM broadcasting launching technique flow chart for the present invention;
Fig. 2 encrypts FM broadcasting emitter block diagram for the present invention;
Fig. 3 encrypts FM broadcasting method of reseptance flow chart for the present invention;
Fig. 4 encrypts FM broadcasting receiving system block diagram for the present invention;
Embodiment
By specifying technology contents of the present invention, structural feature, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
See also Fig. 1, the embodiment of the invention one, a kind of encryption FM broadcasting launching technique comprises:
S0. receive voice and amplify;
If the voice signal that receives a little less than, filter the amplification of making an uproar through amplifying circuit, obtain getting into behind the stronger signal of telecommunication step S1.
S1. the voice that receive are simulated signal and carry out the A/D conversion, generate digital signal;
Promptly be that analog quantity is changed into digital quantity, and the voltage of output become certain proportionate relationship with digital quantity.
S2. isolate positive half cycle of voice and negative half period and be inverted;
Can isolate the language that needs through Splitter; Splitter is the multi-stage filter circuit that is made up of the passive device of inductance, electric capacity and resistance; Can carry out separating of positive half cycle and negative half period through half-wave rectifying circuit; One tunnel direct halfwave rectifier, halfwave rectifier can realize above-mentioned steps S2 after another road anti-phase.
S3. in said digital signal, add computer predetermined speed and frequency, generate preparatory transmission information and convert enciphered message to;
Computer aligns negative half-cycle signal and adds certain speed and frequency, and aligns negative half-cycle signal and carry out continual circulation and be inverted, and voice signal is encrypted and accomplished.
S4. receive described preparatory transmission information and carry out digital-to-analogue conversion, generate analog signal;
Promptly be to convert digital quantity to analog quantity, and numeral become a certain amount of proportionate relationship with voltage.
S5. send described analog signal.
Can send described enciphered message through frequency-modulated transmitter.
See also Fig. 2; The embodiment of the invention two; A kind of encryption FM broadcasting emitter is used to realize embodiment one described method, comprising: voice amplification module 100, A/D modular converter 110, separation module 120, encrypting module 130, D/A modular converter 140 and sending module 150.Voice amplification module 100 is used to receive voice and amplifies, and A/D modular converter 110 links to each other with voice amplification module 100, is used for described voice analog signal is carried out digital translation, generates digital signal; Separation module 120 links to each other with A/D modular converter 110, is used to isolate positive half cycle of voice and negative half period and is inverted; Encrypting module 130 links to each other with described separation module 120, is used for adding calculating predetermined speed and frequency in described digital signal, encrypts, and generates enciphered message; D/A modular converter 140 is used to receive described enciphered message and carries out digital-to-analogue conversion, generates analog signal; Sending module 150 links to each other with encrypting module 130, is used to send described analog signal.
See also Fig. 3, the embodiment of the invention three, a kind of encryption FM broadcasting method of reseptance is used to receive embodiment one described enciphered message, comprising:
T0. the enciphered message of reception needs and demonstration;
Can be by numeral (DSP) FM reception module receiving encryption key; This numeral (DSP) FM reception connects a computer display, and control figure (DSP) FM reception module receives the frequency of the enciphered message that launches and demonstrates frequency points corresponding on computers.
T1. isolate positive half cycle of voice and negative half period;
Can isolate positive half cycle of voice and negative half period by separation module.
T2. detect and whether have identical speed and frequency in the described enciphered message;
Whether COMPUTER DETECTION is the positive-negative half-cycle signal that is added with identical speed and frequency.
If T3., be inverted enciphered message and reduce deciphering, the generation decrypted signal;
If be added with the positive-negative half-cycle signal of identical speed and frequency, will reduce inverted signal, the decrypted signal success; If be not added with the positive-negative half-cycle signal of identical speed and frequency, signal will can not deciphered, and step T1 is returned in the deciphering failure
T4. receive described decrypted signal and amplify and filtering, output to the equipment of raising one's voice.
Back input voice amplification filtering circuit is accomplished in voice deciphering, the noise that amplifies and produced when filtering deciphering, and will amplify and filtered signal outputs to the equipment of raising one's voice.
See also Fig. 4, the embodiment of the invention four, a kind of encryption FM broadcasting receiving system is used to realize embodiment three described methods, comprising: display module 200, separation module 210, detection module 220, deciphering module 230 and amplification filtering module 240.Display module 200 is used to receive the enciphered message of needs and show that separation module 210 is used to isolate positive half cycle of voice and negative half period; Detection module 220 links to each other with separation module 210, detects whether have identical speed and frequency in the described enciphered message; Deciphering module 230 links to each other with described detection module 220, is used to be inverted enciphered message and reduces deciphering, generates decrypted signal.Amplification filtering module 240 is used to receive described decrypted signal and amplifies and carry out filtering, outputs to the equipment of raising one's voice.
The technique effect that the present invention brought is:
1. solve the problem of confidentiality difference,, strengthened the difficulty that is cracked because computer of the present invention generation is the speed of numeral and the coding that frequency is formed;
2. solve single encryption Frequency point can only one the problem used of client because computer of the present invention can produce many digital codings, on same Frequency point, can have many clients to use simultaneously, can not deciphered;
3. solve the production difficulty; The problem of production efficiency and stability is exempted to transfer than element because radiating circuit of the present invention and receiving circuit all adopt, and peripheral cell is also few; All properties calculation of parameter machine program is all controlled well; Greatly reduce the difficulty of production, improved production efficiency, strengthened stability;
In sum, according to encryption FM broadcasting emission of the present invention and method of reseptance and device, the program encryption that uses a computer has strengthened confidentiality; Production process has been simplified in the program control that uses a computer, and has reduced the production difficulty; Production efficiency and stability have been improved; Be user-friendly to, so the present invention encrypts the FM broadcasting transmission/reception and encryption method can be applied, have and imitate high using value.
Combine accompanying drawing that embodiments of the invention are described above; But the present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (9)
1. encrypt the FM broadcasting launching technique for one kind, it is characterized in that, comprising:
S1. the voice that receive are simulated signal and carry out the A/D conversion, generate digital signal;
S2. isolate positive half cycle of voice and negative half period and be inverted;
S3. in described digital signal, add computer predetermined speed and frequency, encrypt, generate enciphered message;
S4. receive described enciphered message and carry out the D/A conversion, generate analog signal;
S5. launch described analog signal.
2. encryption FM broadcasting launching technique according to claim 1 is characterized in that, also comprises step S0 before the said step S1, and specifically: the reception voice also amplify.
3. encrypt the FM broadcasting emitter for one kind, be used to realize the described method of claim 1, it is characterized in that, comprising:
The A/D modular converter is used for that the voice that receive are simulated signal and carries out the A/D conversion, generates digital signal;
Separation module links to each other with the A/D modular converter, is used to isolate positive half cycle of voice and negative half period and is inverted;
Encrypting module links to each other with described modular converter, is used for adding calculating predetermined speed and frequency in described digital signal, encrypts, and generates enciphered message;
Sending module links to each other with described encrypting module, is used to send described enciphered message.
4. encryption FM broadcasting transmitting party device according to claim 3 is characterized in that also comprise voice amplification module and D/A modular converter, described voice amplification module is used to receive voice and amplifies; Described D/A modular converter is used to receive described enciphered message and carries out digital-to-analogue conversion, generates analog signal and emission.
5. encrypt the FM broadcasting method of reseptance for one kind, be used to receive the described enciphered message of claim 1, it is characterized in that, comprising:
T1. isolate positive half cycle of voice and negative half period;
T2. detect and whether have identical speed and frequency in the described enciphered message;
If T3., be inverted enciphered message and reduce deciphering, the generation decrypted signal.
6. encryption FM broadcasting method of reseptance according to claim 5 is characterized in that, also comprises step T0 before the said step T1, and specifically: the enciphered message that reception needs also shows.
7. encryption FM broadcasting method of reseptance according to claim 5 is characterized in that, also comprises step T4 behind the said step T3, specifically: receive described decrypted signal and amplify and filtering, output to the equipment of raising one's voice.
8. encrypt the FM broadcasting receiving system for one kind, be used to realize the described method of claim 5, it is characterized in that, comprising:
Separation module is used to isolate positive half cycle of voice and negative half period;
Detection module links to each other with separation module, detects whether have identical speed and frequency in the described enciphered message;
Deciphering module links to each other with described detection module, is used to be inverted enciphered message and reduces deciphering, generates decrypted signal.
9. encryption FM broadcasting receiving system according to claim 8 is characterized in that, also comprises display module and amplification filtering module, and described display module is used to receive the enciphered message of needs and show; Described amplification filtering module is used to receive described decrypted signal and amplifies and filtering, outputs to the equipment of raising one's voice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102288363A CN102427394A (en) | 2011-08-10 | 2011-08-10 | Encryption frequency modulation broadcast emission and receiving method and apparatuses thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102288363A CN102427394A (en) | 2011-08-10 | 2011-08-10 | Encryption frequency modulation broadcast emission and receiving method and apparatuses thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102427394A true CN102427394A (en) | 2012-04-25 |
Family
ID=45961340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102288363A Pending CN102427394A (en) | 2011-08-10 | 2011-08-10 | Encryption frequency modulation broadcast emission and receiving method and apparatuses thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102427394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104866253A (en) * | 2015-04-03 | 2015-08-26 | 珠海艾派克微电子有限公司 | Chip, method for chip to respond to imaging device, and imaging system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152225A (en) * | 1995-12-15 | 1997-06-18 | 曹柏实 | Dynamic encryption and decryption method and communication equipment in secret phonetic broadcast and communication system |
| US6061390A (en) * | 1994-09-02 | 2000-05-09 | California Institute Of Technology | P-code enhanced method for processing encrypted GPS signals without knowledge of the encryption code |
| CN1267423A (en) * | 1997-07-18 | 2000-09-20 | 汉斯－罗尔夫·特勒尔 | Method and apparatus for producing television tansmission signal with additional information and device for separating said additional information from television transmission signal |
| CN2531582Y (en) * | 2002-03-12 | 2003-01-15 | 江西省石城县电子设备厂 | Encipherment FM broadcast transmitter/receiver |
| CN1419335A (en) * | 2002-06-17 | 2003-05-21 | 施孟奇 | Positive and negative semi-cycle two-path amplitude modulation technology and modulator and demodulator relative circuit thereof |
| JP2005244534A (en) * | 2004-02-26 | 2005-09-08 | Hitachi Ltd | Device and method for cipher communication |
| CN202160182U (en) * | 2011-08-10 | 2012-03-07 | 叶林勇 | Encrypted frequency modulation broadcast receiving device |
-
2011
- 2011-08-10 CN CN2011102288363A patent/CN102427394A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6061390A (en) * | 1994-09-02 | 2000-05-09 | California Institute Of Technology | P-code enhanced method for processing encrypted GPS signals without knowledge of the encryption code |
| CN1152225A (en) * | 1995-12-15 | 1997-06-18 | 曹柏实 | Dynamic encryption and decryption method and communication equipment in secret phonetic broadcast and communication system |
| CN1267423A (en) * | 1997-07-18 | 2000-09-20 | 汉斯－罗尔夫·特勒尔 | Method and apparatus for producing television tansmission signal with additional information and device for separating said additional information from television transmission signal |
| CN2531582Y (en) * | 2002-03-12 | 2003-01-15 | 江西省石城县电子设备厂 | Encipherment FM broadcast transmitter/receiver |
| CN1419335A (en) * | 2002-06-17 | 2003-05-21 | 施孟奇 | Positive and negative semi-cycle two-path amplitude modulation technology and modulator and demodulator relative circuit thereof |
| JP2005244534A (en) * | 2004-02-26 | 2005-09-08 | Hitachi Ltd | Device and method for cipher communication |
| CN202160182U (en) * | 2011-08-10 | 2012-03-07 | 叶林勇 | Encrypted frequency modulation broadcast receiving device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104866253A (en) * | 2015-04-03 | 2015-08-26 | 珠海艾派克微电子有限公司 | Chip, method for chip to respond to imaging device, and imaging system |
| CN104866253B (en) * | 2015-04-03 | 2018-03-30 | 珠海艾派克微电子有限公司 | A kind of chip and its method, the imaging system for responding imaging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103795523B (en) | Electric bidding document multilamellar encrypting and deciphering system and method for e-bidding | |
| CN105376261B (en) | Encryption method and system for instant messaging message | |
| CN104022841A (en) | Communication method and system based on encryption transmission and wireless energy carrying | |
| CN106533656B (en) | A kind of key multilayer mixing method for encryption/decryption based on WSN | |
| WO2012077999A3 (en) | Traffic encryption key management for machine to machine multicast group | |
| CN102333093A (en) | Data encryption transmission method and system | |
| CN204119384U (en) | A kind of web camera | |
| CN103441841B (en) | A kind of welding data is from encrypting and decrypting system and method | |
| CN110912699B (en) | Optical transmission method based on floating probability forming | |
| CN106453391A (en) | Long repeating data encryption and transmission method and system | |
| EP3934295A3 (en) | Key protection processing method, apparatus, device and storage medium | |
| CN104660397A (en) | Secret key managing method and system | |
| CN101568110A (en) | Wireless data transmission method and system | |
| CN105007159A (en) | Secret key distribution device based on chaotic synchronization | |
| CN103929297A (en) | Communication method, encryption method and device for POS and mobile terminal and POS | |
| CN108377180A (en) | A kind of wireless secret communication system based on STM32 | |
| CN202160182U (en) | Encrypted frequency modulation broadcast receiving device | |
| CN101051890A (en) | Method for applying chaotic synchronization self keeping property in secret communication | |
| CN203482192U (en) | Wireless communication apparatus | |
| CN103825725A (en) | Efficient random physical layer secrete key generation method based on vector quantization | |
| CN105681256B (en) | Audio communication method and voice communication application apparatus | |
| CN102427394A (en) | Encryption frequency modulation broadcast emission and receiving method and apparatuses thereof | |
| KR20140070878A (en) | System and method for security certification of power system | |
| CN102970134B (en) | Method and system for encapsulating PKCS#7 (public-key cryptography standard #7) data by algorithm of hardware password equipment | |
| CN109547141A (en) | A kind of emergent broadcast typhon system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120425 |