CN205142237U - Portable shield assembly that records - Google Patents
Portable shield assembly that records Download PDFInfo
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- CN205142237U CN205142237U CN201520849918.3U CN201520849918U CN205142237U CN 205142237 U CN205142237 U CN 205142237U CN 201520849918 U CN201520849918 U CN 201520849918U CN 205142237 U CN205142237 U CN 205142237U
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Abstract
The utility model discloses a portable shield assembly that records, the device includes: supersound signal generation module is used for generating the multifrequency point ultrasonic wave signal of telecommunication, random number generation module is used for generating random number sequence, the crypto module is used for encrypting random number sequence, the transformer is used and is enlargied the multifrequency point ultrasonic wave signal of telecommunication, ultrasonic transducer is used for realizing carrying out electro -acoustic transducer to the ultrasonic wave signal of telecommunication to transmission ultrasonic signal. The utility model has the characteristics of the shielding device type is many, the security is high, the shielding is effectual, portable, disguised strong, good heat dissipation etc, can all kinds of recording devices of shielding, can solve under the various occasions especially the problem that speech information that mobile context leads to down divulged a secret because of illegal recording.
Description
Technical field
The utility model belongs to recording shield technology field, is specifically related to a kind of portable recording screening arrangement.
Background technology
The U.S. Snowdon " prism door event " occurred for 2013 causes huge impact to west and even All Around The World, and this event table understands the hidden danger that there is a large amount of information-leakages in current life.Information security is the lifeline of an enterprise, a department and even whole country.If confidential information is revealed, to be so no matter that therefore country, government department, enterprise and even individual can suffer immeasurable loss.Divulge a secret for voice recording and also there is no effective solution both at home and abroad at present, how to block various sound pick-up outfit, thus prevent the divulging a secret with regard to a problem demanding prompt solution in the informatization of Cheng Liao China of voice messaging.The appearance of recording shielding device can effectively solve this problem.
Recording shielding device, also known as recording cropper or recording block device etc., is mainly used in preventing the equipment such as mobile phone, recording pen from illegally recording.The recording shielding device overwhelming majority domestic is at present all based on electromagnetic interference and this two schemes of background noise, such scheme can only form recording shielding by the equipment lower to integrated level, in use also there is obvious heard sound simultaneously, thus cause the problems such as overlay device type is few, shield effectiveness is poor, and practicality is not strong.In addition, existing recording shielding body is long-pending generally bigger than normal, does not support mobile use.Therefore existing recording shielding device cannot be applied to the especially various mobile context of all kinds of occasion better.
Utility model content
The utility model provides a kind of portable recording screening arrangement, the utility model can shield all kinds of sound pick-up outfit, with the problem that the voice messaging caused because illegally recording under solving under various occasion especially mobile context is divulged a secret, there is moveable characteristic simultaneously, meet real requirement, described below:
A kind of portable recording screening arrangement, described recording screening arrangement comprises: master controller, ultrasonic signal generation module, random number generation module, crypto module, transformer and ultrasonic probe,
Described master controller is connected with described random number generation module, described crypto module and described ultrasonic signal generation module respectively; Described master controller is connected with described transformer, described mini-fan; Described transformer is connected with described ultrasonic probe;
Described ultrasonic signal generation module is for generating multifrequency point ultrasonic electrical signal; Described random number generation module is for generating random number sequence; Described crypto module is used for encrypted random number sequence;
Described transformer is used for multifrequency point ultrasonic electrical signal to amplify; Described ultrasonic probe is used for realizing carrying out electroacoustic conversion to multifrequency point ultrasonic electrical signal, and launches ultrasonic signal.
Wherein, described recording screening arrangement also comprises: lithium battery, and described lithium battery is used for power supply.
Described recording screening arrangement also comprises: mini-fan, and described mini-fan is used for heat radiation.
The frequency range of described multifrequency point ultrasonic electrical signal is between 0-500Khz.
Described ultrasonic probe adopts gas Jie property piezoelectric supersonic probe, and the sound intensity of the ultrasonic signal generated is greater than 80db.
The beneficial effect of the technical scheme that the utility model provides is:
1) shielding device kind is many.The interference signal that the utility model uses is ultrasonic signal, and its frequency is within the range of receiving of most of sound pick-up outfit sonic transducer.Therefore, the utility model all has shield effectiveness to most sound pick-up outfit.
2) high security.Its distribution probability of interference signal that the utility model is launched is similar to white noise, without any rule, therefore cannot be reduced to primary speech signal by correlation techniques such as statistics, ensure that recording shielding truly, has higher fail safe.
3) shield effectiveness is good.What the utility model was launched is the interference signal unordered being in a jumble similar to white noise, after this signal is recorded by sound pick-up outfit, can only hear the noise that loudness " is grown " greatly, wherein without any residual voice signal.Therefore shield effectiveness is better.
4) good portability.Device volume of the present utility model is less, and built-in lithium battery, also can use under various occasion especially mobile context simultaneously.
5) disguised strong, without heard sound in device busy process of the present utility model, be suitable for shielding sound pick-up outfit under hidden state.And this device also can, by the articles for daily use such as charger baby that disguise oneself as, be convenient to hide.
6) thermal diffusivity is good.Device built-in miniature fan of the present utility model, can prevent works long hours causes temperature too high.
Relative to prior art, the utility model has the features such as shielding device kind is many, fail safe is high, shield effectiveness is good, portable, disguise strong, thermal diffusivity is good, can all kinds of sound pick-up outfit of shielding, the problem that the voice messaging caused because illegally recording under can solving under various occasion especially mobile context is divulged a secret.
Accompanying drawing explanation
Fig. 1 is the structural representation of portable recording screening arrangement.
In accompanying drawing, the list of parts representated by each label is as follows:
1: master controller; 2: ultrasonic signal generation module;
3: random number generation module; 4: crypto module;
5: transformer; 6: ultrasonic probe;
7: lithium battery; 8: mini-fan.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below the utility model execution mode is described in further detail.
A kind of portable recording screening arrangement, see Fig. 1, this recording screening arrangement comprises: master controller 1, ultrasonic signal generation module 2, random number generation module 3, crypto module 4, transformer 5, ultrasonic probe 6, lithium battery 7 and mini-fan 8.
Master controller 1 is connected with ultrasonic signal generation module 2 by Serial Peripheral Interface (SPI) (adopting general UART interface); Master controller 1 (adopts general I by Serial Peripheral Interface (SPI)
2c interface) be connected with random number generation module 3; Master controller 1 is connected with crypto module 4 by Serial Peripheral Interface (SPI) (adopting general SPI interface);
Master controller 1 is also connected with mini-fan 8 with transformer 5, lithium battery 7; Transformer 5 is connected with ultrasonic probe 6.
Master controller 1 generates multifrequency point ultrasonic electrical signal by ultrasonic signal generation module 2.
Master controller 1 generates the seed of random signal by random number generation module 3.Due to the randomness of the data that random number generation module 3 generates, ensure that the voice messaging by shielding interference cannot reduce.
Master controller 1, by crypto module 4, adopts the close algorithm of high safe state to be encrypted computing to the random number that random number generation module 3 generates, realizes the enciphered data of high security.
Crypto module 4 in the utility model embodiment be through the certification of national Password Management office and model examination & approval, the cryptographic algorithm of employing has SM1 or SM4 cryptographic algorithm.This crypto module 4 adopts techniques well known in the art, and the utility model embodiment does not repeat this.
Multifrequency point ultrasonic electrical signal is amplified by transformer 5 by master controller 1, exports ultrasonic probe 6 to.
Ultrasonic probe 6 is used for carrying out electroacoustic conversion to the ultrasonic electrical signal after amplifying, and launches powerful ultrasonic signal.
Lithium battery 7 is also respectively master controller 1, ultrasonic signal generation module 2, random number generation module 3, crypto module 4, transformer 5, ultrasonic probe 6 and mini-fan 8 and powers.
Mini-fan 8 dispels the heat for whole device.
Wherein, the utility model embodiment is not restricted the chip model that master controller 1 adopts, and the preferred model of the utility model embodiment is that the chip of AT91SAM7X256 realizes.
The utility model embodiment is not restricted the chip model that ultrasonic signal generation module 2 adopts, and the preferred model of the utility model embodiment is that QUALCOMMQ2368 chip realizes.
Random number generation module 3 in the utility model embodiment is through the real random number generator of the certification of national Password Management office and model examination & approval.
The multifrequency point ultrasonic electrical signal that ultrasonic signal generation module 2 in the utility model embodiment generates, its frequency range should be between 0-500Khz.
Ultrasonic probe 6 in the utility model embodiment adopts gas Jie property piezoelectric supersonic to pop one's head in, and the ultrasonic signal generated, its sound intensity should be greater than 80db.
Due to (people's ear not audible) within the range of receiving that the frequency of this ultrasonic signal is in sound pick-up outfit sonic transducer.As long as guarantee that the signal sound in its working region is powerful in 80db, this acoustical power transmitted just can be made much larger than the acoustical power of sound source, just compacting interference can be formed to sound source under silent condition, sound pick-up outfit is made to be recorded to noise information, and this noise cannot be reduced into useful voice messaging, thus realize shielding recording.
The utility model embodiment is to the model of each device except doing specified otherwise, and the model of other devices does not limit, as long as can complete the device of above-mentioned functions.
In sum, the utility model embodiment is achieved by said apparatus can shield all kinds of sound pick-up outfit, with the problem that the voice messaging caused because illegally recording under solving under various occasion especially mobile context is divulged a secret, there is moveable characteristic simultaneously, meet real requirement.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. a portable recording screening arrangement, is characterized in that, described recording screening arrangement comprises: master controller, ultrasonic signal generation module, random number generation module, crypto module, transformer and ultrasonic probe,
Described master controller is connected with described random number generation module, described crypto module and described ultrasonic signal generation module respectively; Described master controller is connected with described transformer, described mini-fan; Described transformer is connected with described ultrasonic probe;
Described ultrasonic signal generation module is for generating multifrequency point ultrasonic electrical signal; Described random number generation module is for generating random number sequence; Described crypto module is used for encrypted random number sequence;
Described transformer is used for multifrequency point ultrasonic electrical signal to amplify; Described ultrasonic probe is used for realizing carrying out electroacoustic conversion to multifrequency point ultrasonic electrical signal, and launches ultrasonic signal.
2. the portable recording screening arrangement of one according to claim 1, is characterized in that, described recording screening arrangement also comprises: lithium battery, and described lithium battery is used for power supply.
3. the portable recording screening arrangement of one according to claim 1, is characterized in that, described recording screening arrangement also comprises: mini-fan, and described mini-fan is used for heat radiation.
4. the portable recording screening arrangement of one according to claim 1, is characterized in that, the frequency range of described multifrequency point ultrasonic electrical signal is between 0-500Khz.
5. the portable recording screening arrangement of one according to claim 1, is characterized in that, described ultrasonic probe adopts gas Jie type piezo ultrasound transducers, and the sound intensity of the ultrasonic signal generated is greater than 80db.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849918.3U CN205142237U (en) | 2015-10-29 | 2015-10-29 | Portable shield assembly that records |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849918.3U CN205142237U (en) | 2015-10-29 | 2015-10-29 | Portable shield assembly that records |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205142237U true CN205142237U (en) | 2016-04-06 |
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ID=55627988
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520849918.3U Active CN205142237U (en) | 2015-10-29 | 2015-10-29 | Portable shield assembly that records |
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| Country | Link |
|---|---|
| CN (1) | CN205142237U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306163A (en) * | 2015-10-29 | 2016-02-03 | 天津光电安辰信息技术有限公司 | Portable recording shielding device and realizing method thereof |
| CN115426865A (en) * | 2022-08-22 | 2022-12-02 | 广州国保科技有限公司 | Mobile phone shielding cabinet |
-
2015
- 2015-10-29 CN CN201520849918.3U patent/CN205142237U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306163A (en) * | 2015-10-29 | 2016-02-03 | 天津光电安辰信息技术有限公司 | Portable recording shielding device and realizing method thereof |
| CN115426865A (en) * | 2022-08-22 | 2022-12-02 | 广州国保科技有限公司 | Mobile phone shielding cabinet |
| CN115426865B (en) * | 2022-08-22 | 2023-11-03 | 广州国保科技有限公司 | Mobile phone shielding cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300211 Meijiang Road, Tianjin, No. 4, No. Patentee after: Tianjin opto electronic information technology Limited by Share Ltd Address before: 300211 Meijiang Road, Tianjin, No. 4, No. Patentee before: TOEC Anchen Information Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |