KR20150002730U

KR20150002730U - Ultrasonic Recording and Bug Suppressor

Info

Publication number: KR20150002730U
Application number: KR2020150004102U
Authority: KR
Inventors: 성준기
Original assignee: 성준기
Priority date: 2015-06-20
Filing date: 2015-06-20
Publication date: 2015-07-09

Abstract

The present invention provides a recording and eavesdropping prevention method and apparatus using acoustic wave ultrasonic waves for illegal use of recording devices and devices capable of recording, such as voice recorders, MP3 players, smart phones, and tapping devices, . The present invention generates acoustic ultrasonic waves (23 KHz to 27 KHz) in an audio frequency band (20 Hz to 20 KHz) in order to prevent recording and eavesdropping of all devices using a microphone by using acoustic wave ultrasonic waves, Generating a first oscillation frequency at a sweeping frequency, amplifying the frequency, and transmitting the amplified signal to an area to prevent and prevent recording and eavesdropping. In addition, the recording and eavesdropping prevention apparatus using the acoustic wave ultrasound of the present invention includes an oscillation unit, an amplification unit, and a speaker to prevent eavesdropping and recording from all devices and devices using a microphone. At this time, the oscillator generates the oscillation frequency in the designated frequency band, the amplifier amplifies the oscillation frequency generated by the oscillator, and the ultrasonic sense speaker transmits the amplified frequency from the amplifier to the outside.

Description

{Ultrasonic Recording and Bug Suppressor} <br> <br> <br> Patents - stay tuned to the technology Sound Ultrasonic Recording and Bug Suppressor

The present invention provides a method and apparatus for preventing sound recording and eavesdropping by forming a sound mask within an audible frequency by generating sound ultrasonic waves of 23 KHz to 27 KHz out of the audible frequency (20 Hz to 20 KHz) and outputting the sound pressure of 110 dB .

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for preventing and / or blocking recording and / or eavesdropping using acoustic wave ultrasound, and more particularly to an acoustic wave ultrasound Recording with. And an apparatus and method for preventing eavesdropping.

In the prior art, the proposed method for preventing eavesdropping and recording is to generate white noise in the audible frequency, and it is necessary to use a tapping device (recording device such as a tapping device, voice recorder, smartphone, Recording or tapping device ") that interferes with recording or eavesdropping.

When a human hearing listens to a certain sound, A and B at the same time, he or she hears the higher sound pressure of the A or B sound, and the weaker one becomes inaudible. That is, if the sound pressure of the A sound is high, only the A sound is heard.

At this time, the B note is masked by the A note, and this phenomenon is referred to as a masking effect. However, humans have the ability to selectively listen to the sounds they want to hear. This auditory ability is called a cocktail party effect. In contrast, an electric or mechanical device such as a microphone (hereinafter referred to as a " microphone ") has the ability to collect and record sound itself, In the case of mixed sounds, the original sound has a limitation that the specific sound is masked and compounded. In addition, both the eavesdropping device and the recording device are designed to collect and record sound through a microphone.

Therefore, the recording with white noise. The method of prevention of eavesdropping is recording by masking effect by the occurrence of unnecessary sound (noise). As a principle that interferes with the micro incoming sound of the tapping device, recording with white noise as shown in Fig. To prevent eavesdropping,

The noise of the blue frequency band is generated so as to have the human conversation sound and the above-described masking effect, thereby generating irregular noise of the audible frequency band so as to prevent the original sound from being eavesdropped or recorded.

Since the conventional method of preventing the recording and the eavesdropping by the white noise generates the white noise of the audible frequency band, the masking effect can be generated when the white noise above the negative sound pressure of the human is generated, The noise of the white noise causes severe discomfort. That is, since the white noise is generated in the audio frequency during use, the user can not use the device because the user can not use the device. There is a problem that the position of the noise output device must be close to the point where it is desired to prevent eavesdropping and recording, it is difficult to use in a relatively large space, and the noise of white noise substantially makes conversation difficult.

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the problems of the related art, and it is an object of the present invention to provide a new acoustic wave ultrasound which can effectively prevent eavesdropping or recording by using a tapping device which is a recording device such as a tapping device, It is intended to provide recording, eavesdropping prevention, blocking method and apparatus.

In particular, unlike the prior art, the present invention utilizes acoustic wave ultrasonic frequency (23 kHz to 27 kHz) and saturates and mutes the microphone itself with a sound pressure of 110 dB to prevent recording and tearing itself, thereby using all frequencies in the audio frequency band as noise It is possible to conceal the use of a conventional acoustic wave ultrasonic wave which can be used in a relatively wide space and can be easily used even when a conversation partner or an eavesdropper does not know it, And an object of the present invention is to provide a method and apparatus for preventing recording and eavesdropping.

23KHz ~ 27KHz Acoustic wave The ultrasonic wave generates a high sound pressure of about 110dB in the air, so that the user's voice is recorded and blocked from entering the eavesdropper.

According to the method and apparatus for preventing eavesdropping according to the present invention, eavesdropping and recording can be prevented without affecting the conversation by transmitting the ultrasonic frequency other than the conversation sound to the conversation area . In addition, since the acoustic wave ultrasound frequency is acquired and transmitted in the audio frequency band, the present invention can hide the recording / eavesdropping prevention device, thereby eliminating the sense of user rejection.

Therefore, the present invention can effectively prevent eavesdropping or recording by using recordable equipment such as voice record, smartphone, tapping device, MP3, and the like. The present invention uses a frequency of an acoustic wave ultrasonic frequency band of 23 KHz to 27 KHz in an audible frequency band and a frequency of an audible frequency band by using a frequency of 110 dB to saturate the mic output itself The present invention overcomes the disadvantages of the prior art that uses white noise and realizes wide space and portable use.

Brief Description of the Drawings Fig. 1 is a view for explaining a classification according to a sound range, acoustic wave ultrasonic range and sound pressure;
2 is a diagram for explaining an audible frequency (a frequency at which a human can perceive a sound);
3 is a diagram for explaining an audible frequency and a frequency range of generation of acoustic wave ultrasonic waves;
4 is a diagram for explaining how the sound of the audio frequency range is masked by the range of sound masking and the recording, the eavesdropping prevention.
5 is a configuration diagram for explaining a configuration for implementing the apparatus of the present invention;
6 is a circuit diagram for explaining an actual acousto-ultrasonic wave circuit for realizing the apparatus of the present invention;
FIG. 7 is a circuit diagram for explaining the history connection output of the ultrasonic sensor for transmitting acoustic ultrasound at 110 dB in the apparatus of the present invention. FIG.

6 is an actual circuit diagram for realizing the concrete realization and realization device in the present invention and producing it.

1: Sweeper (cross-over oscillation)
2:
3:
4: Output section
10: sweeper (cross-oscillation) oscillator
20: water wave oscillator
30: Amplifier
40: Trance
50: Ultrasonic output sensor

Claims

A method of preventing and preventing eavesdropping and recording using acoustic wave ultrasonic waves in order to block and prevent recording and tapping in a device and a device using a microphone for recording or eavesdropping,
Generating a first oscillation frequency of 23 KHz to 27 KHz to generate acoustic ultrasonic waves;
Frequency sweeping (cross generation) for sweeping the generated frequency (crossing between 23 KHz and 27 KHz);
An amplification step of amplifying the oscillated and swept (cross-generated) frequency to 110 dB or more;
And outputting the amplified frequency at a sound pressure of 110 db.

The method according to claim 1,
Generating a first oscillation frequency of 23 KHz to 27 KHz to generate acoustic ultrasonic waves;
The oscillation method for generating the sound masking such that the acoustic wave ultrasonic waves of 23 KHz to 27 KHz are generated as the audible frequency band so that the sound is mixed and recorded into the microphone when recording and tapping.

3. The method according to claim 1 or 2,
Frequency sweeping (cross generation) for sweeping the generated frequency (crossing between 23 KHz and 27 KHz);
If the generated frequency is swept (crossing between 23 kHz and 27 kHz), if the specific frequency is used, the sound can be restored by filtering the frequency, but if the frequency is crossed, the sound can not be restored. Frequency sweeping (cross-over) to make it impossible.

The method of claim 1, 2, or 3,
An amplification step of amplifying the oscillated and swept (cross-generated) frequency to 110 dB or more;
In the method of amplifying the weak frequency oscillated and swept (cross-generated) at a high sound pressure of 110 dB, a noise noise is heard in a user's ear when noise of an audible frequency band is inputted or generated. Here, the method of amplifying noise in the audio frequency band even when amplified at a high sound pressure.

The method of claim 1, 2, 3, or 4
The method of claim 1, further comprising: outputting an amplification frequency at a sound pressure of 110 db;
It is impossible to transmit the acoustic wave ultrasound of 23HKz to 27KHz through the normal speaker and the piezo speaker at a high sound pressure of 110dB, and to transmit the sound pressure of 110dB high through the open type ultrasonic sensor.