KR20030009908A - Apparatus for generating an electronic wave interfering video data of imt 2000 - Google Patents

Abstract

PURPOSE: A device for generating an electric wave for interrupting IMT 2000 video data is provided to emit an offset wave of a clock frequency of a part corresponding to video data, in order to make a video transmission blank, thereby preventing secret information from leaking out. CONSTITUTION: A trans(10) downs an inputted supply voltage to a predetermined voltage through a wring ratio, and outputs the downed voltage. A power processor(20) rectifies and stabilizes the downed voltage, and supplies the voltage as a voltage and current necessary for each circuit. An oscillation controller(30) varies a supplied operation power to oscillate the power, and controls a frequency oscillated operation. An oscillator(40) oscillates an offset wave opposite to a clock frequency of video data of an IMT 2000 terminal by the oscillated operation. An antenna(50) delivers an oscillated frequency to the air.

Description

IMF2000 Video data jammer generator {APPARATUS FOR GENERATING AN ELECTRONIC WAVE INTERFERING VIDEO DATA OF IMT 2000}

The present invention relates to an IMT2000 video data jammer generating apparatus, and specifically, when a call is made in a place where confidentiality is required such as a company or a military unit by an IMT2000 terminal capable of real-time transmission of a conversation or video data with anyone anytime, anywhere. In order to prevent leakage of important information, it is necessary to make the video transmission blank by firing the counter wave (offset wave) of the clock frequency corresponding to the video data so that only the video can be removed during the call using the IMT2000 terminal. The present invention relates to an IMT2000 image data jammer generator.

IMT (International Mobile Telecommunication) 2000 is also called 3G mobile communication, and unlike the 2GHZ frequency mobile communication service and voice-oriented 2G (digital) mobile phones that started in 2000s, The Internet and Global Roaming are key, and are superior to existing mobile phones with transmission speeds of up to 2Mbps, which are only 64Kbps. Service to make it possible to use the service overseas as it is, and for this purpose, the third generation service country should use the same frequency band and technology standard.

As such, the IMT2000 is capable of providing global roaming and multimedia services such as voice, high-speed data, and video in land and satellite networks, and uses a mobile link to connect to a fixed telecommunication network service such as an existing telephone or ISDN. There are various advantages such as the configuration of a communication system and the possibility of transmitting and receiving various information at high speed, but the problems caused by these advantages cannot be overlooked.

A specific example of the problem caused by IMT2000 is the unlimited transfer of information, which may be both a maximum and a disadvantage.

In particular, in the case of the existing mobile phone, it has been used as a means of leaking information about confidentiality, etc., in this case, but in this case, the short information by voice information or short message service (SMS) has become mainstream. In case of IMT2000, it is configured to transmit video information. Therefore, real-time video transmission for important confidentiality is incomparably large compared with existing information leakage. It is a required situation.

The present invention has been made to solve the above problems, an object of the present invention is to provide a device that can prevent the leakage of confidentiality by the transmission of the image data of the IMT2000 terminal in the area requiring confidentiality and security.

Other objects of the present invention will be described in more detail in the configurations and operations described below.

1 is a block diagram of a preferred embodiment according to the present invention.

2 is a block diagram illustrating another embodiment according to the present invention.

An IMT2000 image data jammer generator according to the present invention comprises: a transformer for outputting a commercial voltage inputted down to a predetermined voltage through a set turns ratio; Power processing means for rectifying and stabilizing the down voltage applied from the transformer and supplying the voltage and current in a state necessary for each circuit; Oscillation control means for controlling the oscillation frequency by oscillating by varying the supplied operating power; Oscillation means for oscillating an offset wave opposite to the clock frequency of the image data of the IMT2000 terminal by the oscillation control operation of the oscillation control means; And transmitting means for transmitting the oscillated frequency to the air by radio waves.

Preferably, the oscillated frequency is a counter wave for canceling the clock frequency corresponding to the image data portion of the IMT2000 terminal, and has the same amplitude and period as the clock frequency of the image data, and the periods are out of phase with each other by π. As the radio waves are launched into a space within a predetermined area, the image transmission by the IMT2000 terminal in the desired area is made into a blank state.

And as another embodiment of the present invention, the output level adjusting unit for receiving the power from the power processing means in the configuration of the embodiment to vary the output level by a variable resistor; And a mixing unit which receives the offset wave from the oscillation means and receives and mixes the output level varied by the output level adjusting unit to adjust the radiation distance of the offset wave, thereby controlling the radiation distance of the offset wave. This can reliably prevent transmission of image data in more localized areas.

In addition, the oscillation control means and the oscillation means are formed in plural so as to receive the same power and frequency from the power processing means so as to oscillate independently of each other. The configuration which simultaneously generates the decay wave can be achieved.

In addition, the antenna may be configured as a flexible wire antenna to avoid the restriction of the place in the space where it is preferably installed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the IMT2000 image data jammer generator 100 according to the present invention includes a transformer 10 connected to a 110 V / 220 V commercial power source of 50 HZ / 60 HZ, and a power processor 20 connected to the transformer. , The oscillation controller 30, the oscillator 40, and the antenna 50.

Specifically, the power processor 20 rectifies and stabilizes the down voltage applied from the transformer 10, and then processes and supplies the voltage and current in a state necessary in each circuit.

The oscillation control unit 30 controls the oscillation unit by varying the operating power supplied, and the oscillation unit 40 transmits and receives a frequency allocated to an IMT2000 terminal (not shown) according to the frequency oscillation control operation of the oscillation control unit 30, for example. In order to cancel the transmission / reception frequency corresponding to the video data part in the extended frequency band of 5 ~ 20MHZ in the high radio frequency band of 2 GHZ, the amplitude is the same as the frequency corresponding to the video data part of the IMT2000 terminal and the period differs by π. Oscillate the offset wave.

The antenna 50 is made of a flexible wire antenna in order to avoid a restriction of a place in a space where the antenna 50 is installed, and radiates an offset wave applied from the oscillator 40 to airwaves.

Referring to the operation of the image data jammer generator according to the present invention having the function as described above is as follows.

When 110V / 220V commercial power is input, the transformer 10 lowers the input voltage to a predetermined voltage and applies the power to the power processor 20. The power processor 20 rectifies and stabilizes the applied down voltage to each circuit. Supply the operating power.

When the operating power as described above is supplied, the oscillation controller 30 oscillates at a predetermined period from the center frequency of the supplied operating power and applies a control frequency oscillated to the oscillator 40.

The oscillator 40 generates an offset wave as described above according to the applied control frequency, and the offset wave is radiated into the air by the antenna 50 to correspond to the transmission / reception frequency corresponding to the image data portion of the IMT2000 terminal used in the adjacent area. By generating a cancel operation, the frequency corresponding to the video data portion of the IMT2000 terminal is canceled to be in a blank state.

As a result, no image is displayed on the screen of the IMT2000 terminal that transmits or receives the video data in the blank state. As a result, the transmission of important information or data can be prevented by companies requiring confidentiality or security. Therefore, there is no need to install a separate security system.

FIG. 2 is a block diagram illustrating another embodiment according to the present invention. According to FIG. 2, an IMT2000 image is additionally formed by the output level adjusting unit 60 and the mixing unit 70 in the configuration of the embodiment of FIG. 1. The data jammer generator 200 is configured.

The embodiment of Figure 2 is a configuration for adjusting the radiation distance of the frequency so as to work accurately in the main position, for example, 3 ~ 4m, in particular the output level adjusting unit 60 of the disturbance frequency by the variable resistor (VR) The radiation distance is determined, and the mixing unit 70 mixes the frequency oscillated by the oscillator 40 and the output level value adjusted by the output level adjusting unit 60 to radiate the output-adjusted offset wave as airwaves.

Such a configuration makes it possible to effectively cancel the transmission of the video data with respect to the main part, thereby enabling selective and efficient operation than in the case of the embodiment of FIG.

In addition to the embodiment of FIG. 1 and FIG. 2 as described above, the configuration of simultaneously blocking the image data and the audio data is also possible as the configuration of the oscillator of FIGS. 1 and 2 is formed in a parallel structure by a plurality of oscillators. In this case, in the embodiment of FIG. 2, the output from the output level adjusting unit 60 allows a plurality of outputs to be generated so that the mixing unit 70 can mix and output each oscillation frequency separately.

Although the preferred embodiment of the present invention has been described in detail as described above, those skilled in the art will be able to modify or change the present invention as many as possible without departing from the spirit and scope of the present invention. It will be appreciated that it can be done.

According to the present invention, since unlimited transmission of information by IMT2000 can be properly blocked according to the needs of a company or a company, there is an effect of preventing the leakage of information on important confidentiality, etc., and by using such a simple device, The cost of security devices is reduced.

In addition, since the offset wave is generated locally only in the part where security is required in the IMT2000, voice data transmission of the intentional IMT2000 users can be maintained as much as possible, and when necessary, the offset wave can also be generated for the voice data part. The choice may be part of the user's authority.

Claims (5)

A transformer for outputting down the commercial power input to a predetermined voltage through a set winding ratio; Power processing means for rectifying and stabilizing the down voltage applied from the transformer and supplying the voltage and current in a state necessary for each circuit; Oscillation control means for controlling the oscillation frequency by oscillating by varying the supplied operating power; Oscillation means for oscillating an offset wave opposite to the clock frequency of the image data of the IMT2000 terminal by the oscillation control operation of the oscillation control means; And transmission means for transmitting the oscillated frequency to the air by radio waves. The method of claim 1, The decay wave has an amplitude and a period equal to the clock frequency of the image data, and the image data jammer generator of IMT2000, wherein the periods are out of phase with each other by π. The method of claim 1, An output level adjusting unit which receives power from the power processing unit and varies an output level by a variable resistor; Wow And a mixing unit configured to adjust the radiation distance of the offset wave by applying the offset wave from the oscillation unit and receiving the mixed output level at the output level adjustment unit. The method of claim 1, The oscillation control means and the oscillation means are formed in plural so as to receive the same power and frequency from the power supply processing means so as to oscillate independently of each other, and simultaneously generate a destructive wave for various data by IMT2000. Image data jammer generator of IMT2000. The method of claim 1, The antenna of claim 1, wherein the antenna is a flexible wire antenna.