KR200284291Y1 - wiretapping detection circuit - Google Patents

Abstract

The present invention uses a wire tapping device to select the contents of a telephone call in a certain area.

Line supervisory circuits and line supervisory circuits to detect when wiretapping is carried out

Wiretap detection with a line analysis circuit that analyzes detected data

In the configuration of the device, data is transferred between the line monitoring circuit and the line analysis circuit.

Line analysis setting times between the detecting circuit to detect and the detecting circuit and the line analyzing circuit

The basic configuration of the furnace, and when wired wire tapping from the outside

Alerts the detected signal with a buzzer and a light-emitting diode (LED)

It is always equipped with a high storage circuit to configure the function of storing data.

It has the effect of checking and monitoring wired taps.

Description

Wiretapping detection circuit

The present invention relates to a device for detecting wire tapping in a certain area.

Specifically, for the telephone line installed in the indoor space of a certain area

Detect wired eavesdropping and notify with buzzer and LED alarm

Wiretapping with integrated device

To a sensing device.

The conventional wire tapping detection device of such a configuration uses a specific detection device on the wire line.

The detection circuit uses the variable resistor to call the current status.

It is a device that sounds an alarm when there is a change in signal level of a line.

However, the conventional wire tapping detection device as described above has a variable line signal level.

Wired taps and high-end taps with compensation circuits can be detected because of their wide width

There is a limit to detection when connecting devices

Therefore, the present invention has been devised in view of the above-described conventional problems.

The purpose of the inside is for telephone lines installed in indoor spaces in certain areas.

If you are going to do wiretapping, the line signal

To detect it in the detection circuit and buzz it in the line analysis circuit.

And LED.

It also detects when the width of the varying line signal level is small, as in conventional devices.

The line analysis setting circuit is provided to prevent the case of

CPU (Central Processing Unit) embedded in the analysis setup circuit

Store the current level value in 0.1 [V} units so that even small changes can be detected.

To set the setpoint so that the change can be detected.

Wired taps and advanced taps with compensating circuits

To produce a detectable effect.

In addition, a storage circuit is provided to store up to 100 changed line signal levels.

As a result, it is possible to accurately grasp the change of the track.

1 is a block diagram showing the configuration of the detection and prevention device of the present invention

The configuration of the present invention for achieving the above object, to detect a change in the wireline

It has a line monitoring circuit and analyzes a specific signal detected by the line monitoring circuit.

In a wire tapping detection device composed of a line analysis circuit, the line monitoring circuit

A probe that detects the signal detected by the line monitoring circuit between the furnace and line analysis circuit.

A line having an exit circuit and setting a signal analysis value of the line analysis circuit.

An analysis setting circuit is provided.

It also has an analysis signal processor for processing the signal analyzed in the line analysis circuit

Alarm it with LED and buzzer. In addition, the configuration of the present invention is additional

Up to 100 signals processed by the analysis signal processor

It is characterized by having a storage circuit capable of storing.

As described above, the present invention is a telephone line installed in an indoor space of a certain area.

If you want to conduct wiretapping for

By ringing the beam, you can check whether wired taps are present or not.

Up to 100 can be stored so complete monitoring of the wire

It's losing.

Claims (1)

Line monitoring circuits and lines that detect changes in wired lines and determine whether they are tapped In wired eavesdropping detection device equipped with analysis circuit, The current level value of the line is stored in the CPU so that it can be detected. Wired eavesdropping detection device to set analysis settings.