JPH0673936U - Mobile phone misplacement prevention device and discovery device - Google Patents

Abstract

(57) [Abstract] [Purpose] Prevent misplacement of mobile phones. Easily find a misplaced mobile phone. [Structure] A mobile phone P that is an oscillator that oscillates weak radio waves
It is provided inside the first battery pack S6 and is driven by using the battery 11 of the battery pack S6. Further, when the radio wave transmitted from the transmitter can be received, an alarm is not issued, and when the radio wave cannot be received, a reception alarm device which issues an alarm is provided separately from the mobile phone P1 and the mobile unit 20.
And On the other hand, an alarm device that receives an electric wave and issues an alarm is provided inside the battery pack P1 and is driven by using the battery 11. Further, the oscillator that emits a radio wave for operating the alarm device is a mobile unit 20 that is separate from the mobile phone. [Effect] It is possible to prevent the mobile phone from being left behind. You can easily find a misplaced mobile phone. The size can be reduced, and the labor of individually charging the battery can be saved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a misplacement prevention device and a discovery device for a mobile phone, and more particularly to a misplacement prevention device for a mobile phone that issues an alarm when the mobile phone is misplaced and a mobile phone that issues an alarm indicating the location of the mobile phone. Regarding discovery device.

[0002]

[Prior art]

 FIG. 4 is a perspective view showing an example of a conventional mobile phone. This mobile phone P2 includes a speaker built-in section S1, a liquid crystal display section S2, an operation section S3 in which a numeric keypad and the like are arranged in parallel, a transmitter section S4, a retractable antenna S5, and a battery pack S6. I will do it. The battery pack S6 includes a rechargeable battery and is replaceable.

[0003]

[Problems to be solved by the device]

 In recent years, the number of lost accidents due to misplacement or theft of mobile phones has increased. However, the conventional mobile phone P2 has a problem that is not considered at all. Therefore, a first object of the present invention is to provide a device for preventing misplacement of a mobile phone in consideration of a loss accident caused by misplacement of the mobile phone.

On the other hand, even if it is found that the mobile phone has been left behind, it may take time to find it without knowing where the mobile phone was left behind. However, the conventional mobile phone P2 has a problem that is not considered at all. Therefore, a second object of the present invention is to provide a mobile phone discovery apparatus that can easily discover a misplaced mobile phone.

[0005]

[Means for Solving the Problems]

 The device for preventing misplacement of a mobile phone according to the present invention is provided with a transmitter that oscillates a weak electric wave inside a battery pack of the mobile phone and is driven by a battery of the battery pack, and can receive the electric wave transmitted from the transmitter. In this case, the reception alarm device that issues an alarm when the radio wave cannot be received without issuing an alarm is a portable feature that is separate from the mobile phone.

In the mobile phone discovery device of the present invention, the transmitter that oscillates a weak electric wave is a portable product that is separate from the mobile phone, and the electric wave transmitted from the transmitter is received as an alarm. Is provided in the battery pack of the mobile phone, and is driven by the battery of the battery pack.

[0007]

[Action]

 In the device for preventing misplacement of a mobile phone according to the present invention, a transmitter that oscillates a weak electric wave is provided inside the battery pack of the mobile phone and is driven by using the battery of the battery pack. You can save the trouble of charging. Then, when the radio wave transmitted from the transmitter can be received, the alarm is not issued, and when the radio wave cannot be received, the reception alarm device that issues an alarm is a mobile device separate from the mobile phone, and Will carry this. Therefore, if the distance between the user and the mobile phone is more than a predetermined distance, the signal sent from the transmitter provided in the battery pack of the mobile phone will not reach the reception alarm device carried by the user, so the receiver will not receive the signal. An alarm is issued to inform you that you have left your mobile phone behind, so you can prevent it from being left behind or stolen.

In the device for discovering a mobile phone of the present invention, an alarm device that receives an electric wave and gives an alarm is provided inside the battery pack of the mobile phone and is driven by using the battery of the battery pack, so that the device can be miniaturized. , You can save the trouble of individually charging the battery. Then, an oscillator that emits a radio wave for activating the alarm device is a portable product separate from the mobile phone, and the user carries it. Therefore, when the user operates the oscillator to emit radio waves or stops the transmission of radio waves, the alarm device provided in the battery pack of the mobile phone gives an alarm and informs the location of the mobile phone. Easy to find.

[0009]

【Example】

 FIG. 1 is a perspective view showing a mobile phone according to an embodiment of the present invention. This mobile phone P1 includes a speaker built-in section S1, a liquid crystal display section S2, an operation section S3 having a numeric keypad and the like arranged in parallel, a transmitter section S4, a retractable antenna S5, and a battery pack S6. I will do it. The combination of the battery pack S6 and the mobile unit 20 constitutes the device 100 for preventing misplacement and discovery of the mobile phone of the present invention.

The battery pack S6 includes a rechargeable battery 11 and is replaceable. Further, the battery pack S6 is provided with a transmitter / receiver 12, a transmitter switch 13, and an alarm device 19. The transmitter / receiver 12 is supplied with power from the battery 11, and when the transmitter switch 13 is turned on, the transmitter / receiver 12 transmits an amplitude-modulated radio wave of a predetermined frequency. The predetermined frequency is, for example, 305, 320, 335, 350, 365, 380, 395, 410 MHz. Further, the transmitter / receiver 12 does not issue an alarm when the radio wave from the mobile unit 20 is not received, and issues an alarm when the radio wave from the mobile unit 20 is received.

The mobile unit 20 is carried by the user, and when the radio wave transmitted from the transmitter 12 is sufficiently reachable (when the distance from the mobile phone P1 is within 3 m, for example, the radio wave is received). Although the alarm sound is not emitted, the alarm sound is emitted when the electric wave transmitted from the transmitter 12 does not reach sufficiently (a state where the distance from the mobile phone P1 is, for example, 3 m or more). This alarm sound can be stopped by the multi-switch 28. Further, the portable unit 20 emits an amplitude-modulated radio wave of a predetermined frequency by turning on the multi-selection switch 28. This radio wave has a frequency different from that of the radio wave transmitted from the transmitter / receiver 12 and has a far reaching distance.

FIG. 2 is a block diagram showing a configuration of the transmitter / receiver 12. The amplitude modulation circuit 14, the oscillation circuit 15, and the antenna 16 form a transmitter. Further, the antenna 16, the receiving circuit 17, the alarm sound oscillating circuit 18, and the electronic buzzer 19 constitute an alarm device.

FIG. 3 is a block diagram showing the configuration of the mobile unit 20. An antenna 21, a demodulation circuit 22, an amplification circuit 23, a filter circuit 24 for extracting only a predetermined frequency signal, a smoothing circuit 25 for smoothing the output of the filter circuit 24 and converting it into a DC voltage signal, and a smoothing circuit thereof. When the level of the DC voltage signal output from 25 is high, the oscillation is stopped, and when the level of the DC voltage signal is low, the oscillation is started by the alarm sound oscillation circuit 26 and the electronic buzzer 27. Vessel is constructed. Further, the modulator circuit 31, the oscillator circuit 32, and the antenna 21 constitute an oscillator. This transmitter operates by turning on the multi-selection switch 28, and emits radio waves.

A user usually carries both the mobile phone P 1 and the mobile unit 20. If the mobile phone body P1 is left behind and is separated from the mobile phone body P1 by, for example, 3 meters or more, the radio wave transmitted from the transmitter / receiver 12 of the mobile phone body P1 is transmitted to the mobile unit 20 carried by the user. I will not receive it. As a result, the mobile unit 20 emits an alarm sound and notices that the mobile phone body P1 is left behind. Then, when the user turns on the multi-selection switch 28 of the mobile unit 20, a radio wave is transmitted from the mobile unit 20, the alarm device on the side of the mobile phone main body P1 that receives this emits an alarm sound, and the user receives the mobile phone. The position where the main body P1 is left behind can be easily known. In addition, in the device for preventing misplacement and discovery 100 of the mobile phone, since power is supplied from the battery 11 of the battery pack S6, there is an advantage that the device can be miniaturized and the labor of individually charging the battery can be omitted.

In the above embodiment, the warning is given by sound, but the warning may be given by emitting light or mechanical vibration. Further, in the above-described embodiment, the mobile phone P1 gives an alarm when the radio wave from the mobile unit 20 is received. However, when the radio wave from the mobile unit 20 is received, the mobile phone P1 gives an alarm. Instead, the mobile phone P1 may issue an alarm when it no longer receives radio waves from the mobile unit 20. In this case, it is possible to prevent the portable telephone P1 from being taken away.

[0016]

[Effect of device]

 According to the mobile phone misplacement prevention device and the discovery device of the present invention, the reception alarm device carried by the user issues an alarm when the user moves away from the mobile phone by a predetermined distance or more, so that the mobile phone can be prevented from being misplaced. The mobile phone side is also configured to issue an alarm in response to the radio wave from the transmitter carried by the user, so that the mobile phone left behind can be easily found. Also, since the power is supplied from the battery of the mobile phone, the size can be reduced and the time and effort of individually charging the battery can be saved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a mobile phone and a misplacement prevention and discovery device of the mobile phone according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a transmitter / receiver accommodated in a mobile phone.

FIG. 3 is a block diagram showing a configuration of a mobile unit carried by a user.

FIG. 4 is a perspective view showing an example of a conventional mobile phone.

[Explanation of symbols]

 100 Mobile Phone Misplacement Prevention and Detection Device P1 Mobile Phone 11 Battery 12 Transmitter / Receiver 13 Oscillation Switch 14 Amplitude Modulation Circuit 15 Oscillation Circuit 16 Antenna 20 Mobile Unit 21 Antenna 22 Demodulation Circuit 23 Amplification Circuit 24 Filter Circuit 25 Smoothing Circuit 26 Alarm Sound oscillation circuit 27 Electronic buzzer 28 Multi selector switch

Claims (2)

[Scope of utility model registration request] 1. A transmitter that oscillates a weak electric wave is provided inside a battery pack of a mobile phone and driven by a battery of the battery pack, and an alarm is not issued when the electric wave emitted from the transmitter can be received. A device for preventing misplacement of a mobile phone, characterized in that a reception alarm device for issuing an alarm when the radio wave cannot be received is a portable item separate from the mobile phone. 2. A state in which a transmitter that oscillates a weak electric wave is a portable item separate from a mobile phone, and the electric wave transmitted from the transmitter is received to issue an alarm or the electric wave cannot be received. A device for discovering a mobile phone, comprising: an alarm device for issuing an alarm when the following occurs, provided inside a battery pack of the mobile phone and driven by a battery of the battery pack.