JP2001024783A - Detector for wire tapping and stealth photographing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a portable and inexpensive detector, capable of detecting a tapping unit and a stealth photographing camera installed at not only a telephone set nut also near a place where a user tries to call by incorporating a means for detecting a radio wave emitted from the tapping unit or the stealth photographing camera using a radio wave and emitting a warning signal to a mobile communications equipment. SOLUTION: A function for singly detecting tapping and stealth photographing is added to mobile communication equipment main body 1, such as a portable telephone set or a PHS so as to detect a tapping unit or a stealth photographing camera installed near a place, where a user calls a telephone by turning on a frequency detecting function power source switch 8. Namely, at turning on of the switch 8, a frequency automatically varying circuit 6 automatically varies a frequency to send to a frequency automatically detecting circuit 4. The circuit 4 rings a warning buzzer 9 at detection of the same frequency as that received from an antenna 5. In this case, tapping unit or the stealth photographing camera can be detected, even during middle of communication only by turning on the switch 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiretapping / voyeuring detector which is installed in a house, an office, a hotel, or the like, and detects devices that wiretap or spy on conversations and actions.

[0002]

2. Description of the Related Art There has been a problem of eavesdropping and voyeurism in which an individual's conversation or behavior is concealed, listened or photographed, and provided to others. Many are illegal activities that violate the basic human rights of individuals and organizations.

[0003] In order to prevent such illegal activities beforehand, there have conventionally been devices that incorporate a wiretapping detector into a telephone, and devices that include only a wiretapping detector, as described in JP-A-9-139768. .

[0004]

However, such an eavesdropping detector has the following problems. (1) An eavesdropping detector built into a telephone can detect an eavesdropping device mounted on the telephone, but cannot detect an eavesdropping device mounted around a telephone call, such as in a room. (2) The eavesdropping detector built in the telephone cannot detect the eavesdropping device. (3) A dedicated eavesdropping / voyeur detector must always be carried separately in order to detect an eavesdropping / voyeur detector placed around the telephone call. (4) Eavesdropping / voyeur detection cannot be performed easily. (5) Conventional wiretapping / voyeur detectors are very expensive and large in shape.

[0005] Therefore, the problem to be solved by the present invention is:
Eavesdropping devices installed in mobile communication devices that can detect not only telephones but also eavesdroppers and voyeurs installed in the surrounding area where you want to make calls, and are small in size and portable and inexpensive・ To provide a voyeur detector.

[0006]

In order to solve the above-mentioned problems, a wiretapping / voyeuring detector according to the present invention is used for a mobile communication device such as a mobile phone or a PHS to provide at least one of a wiretapping device and a voyeur using radio waves. It incorporates means for detecting a radio wave emitted from one side and issuing a warning signal. In this eavesdropping / voyeuring detector, means for finding the eavesdropping device or the voyeur by changing the buzzer volume, the magnitude of the vibration, and the level display on the display unit according to the strength of the radio wave emitted by the eavesdropper or the voyeur. Can be adopted.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to examples. FIG. 1 is a block diagram showing the configuration of the embodiment of the present invention. In the figure, 1
Is a mobile communication device body with a built-in voyeur / tapping detector, 2 is a power supply, 3 is a telephone function circuit, 4 is an automatic frequency detection circuit, 5 is an antenna, 6 is an automatic frequency variable circuit, 7 is a telephone function power switch, 8 is The frequency detection function power switch 9 is an alarm buzzer. The telephone function circuit 3 is a circuit having a mobile communication function that uses a mobile phone, a PHS, or the like by switching between them. Note that the eavesdropping device and the eavesdropping device can be independently incorporated into the mobile communication device body 1.

In this embodiment, a mobile phone or a PH
By adding a function that can independently detect wiretapping and voyeurism to the mobile communication device body 1 such as S, and turning on the frequency detection function power switch 8, the eavesdropping device and voyeur device mounted around the phone call can be removed. Enabled detection.

That is, when the frequency detection function switch 8 is turned on, the automatic frequency variable circuit 6 automatically changes the frequency and sends it to the automatic frequency detection circuit 4. When the automatic frequency detection circuit 4 detects the same frequency band as the frequency received from the antenna 5, the alarm buzzer 9 sounds. At this time, the buzzer volume changes depending on the strength of the radio wave, and the buzzer volume increases as the frequency approaches the frequency transmission source. In addition to the sound volume of the buzzer, a change in the pitch of the buzzer sound, a change in the magnitude of the vibration of the main body 1, a radio wave level display on a display, or the like may be used. Note that the frequency may be changed manually.

When the telephone function power switch 7 is turned on, the telephone function circuit 3 operates, and communication can be performed using the mobile communication function. At this time, the frequency detection function power switch 8 is turned on. Then, even during communication, a wiretapping device and a voyeur device can be detected.

[0011] In this way, by locating the place where the eavesdropping device and the voyeur device are set up, removing the device and stopping the operation, the telephone can be used and conversation can be performed with confidence.

[0012]

As described above, according to the present invention, the following effects can be obtained.

(1) By combining a mobile communication device such as a mobile phone or a PHS with an eavesdropping / voyeur detector,
Since eavesdropping and voyeurism of the surrounding area can be detected at all times, it is very safe to protect privacy.

(2) Mobile communication devices such as mobile phones and PHSs have a high penetration rate, and anyone can easily detect wiretapping and voyeurism, so there is no need to purchase a dedicated wiretapping and voyeurism detector, and costs are reduced. The burden is greatly reduced.

(3) The mobile communication device and the wiretapping / voyeuring detector are of a switchable type, and the consumption of the battery is minimized, which is economical.

(4) The shape is compact and the price is low.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

1 Mobile communication device with built-in voyeur / wiretapping detector, 2 power supply, 3 telephone function circuit, 4 automatic frequency detection circuit, 5
Antenna, 6 automatic frequency variable circuit, 7 telephone function power switch, 8 frequency detection function power switch, 9 alarm buzzer

Claims (2)

[Claims] 1. A mobile communication device such as a mobile phone or a PHS is provided with means for detecting a radio wave emitted from at least one of a wiretapping device and a spy camera using a radio wave and issuing a warning signal. Eavesdropping / voyeur detector. 2. A means for detecting a wiretap or a voyeur by changing the buzzer volume, the magnitude of the vibration, and the level display on the display unit according to the strength of the radio wave emitted by the wiretap or the voyeur. The wiretapping / voyeuring detector according to claim 1, wherein: