CN2324734Y

CN2324734Y - Warning device for preventing mobile telephone from losing

Info

Publication number: CN2324734Y
Application number: CN98223375U
Authority: CN
Inventors: 卓花盆
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-03
Filing date: 1998-03-03
Publication date: 1999-06-16
Anticipated expiration: 2008-03-03

Abstract

The utility model relates to a high-frequency transmitter which is arranged in a proper space inside a mainframe of a mobile phone and a receiver for a user to wear. The high-frequency transmitter is composed of a high-frequency oscillating circuit and a coding circuit. The receiver is composed of a high-frequency receiving and reducing circuit, a low-pass amplifier, a waveform shaping circuit, a decoding circuit, an alarm circuit and a vibrator (or a buzzer). The high-frequency transmitter can be a separate mainframe type and can be affixed to the external lateral of the mainframe. The receiver can be arranged at proper position inside a key ring or a pen. When the transmitter and the receiver get more than a certain distance away, the buzzer sounds to prompt the user to turn back for fetching the mobile phone.

Description

Prevent the alarming device of mobile phone loss

A kind of alarming device that prevents the mobile phone loss belongs to the telecommunication field.

Function at present mobile phone, though having, it sends out the convenience of receiving words, right is the inconvenience of carrying for people's worry, and custom difference according to the holder, someone is linked with it on belt, someone takes it, but no matter its mode of carrying is how, in case it must be held on hand and press close to ear when using, but if be busy with other things simultaneously, often behind talk-through, just mobile phone is placed conveniently (on Zhuo) on one side, do not note as if the tip, just lose at home, on the car or public field boundary institute, therefore if a kind of above-mentioned thing generation that prevents can be arranged, will bring great convenience to the user.

The purpose of this utility model provides a kind of alarming device that prevents the mobile phone loss, it is a HF transmitter to be set in the phone in action and the holder wears a receiver, beacon ring device when exceeding certain distance between the two in the receiver makes a sound, caution mobile phone holder, mobile phone is not at one's side.Scheme of the present utility model is that a HF transmitter is installed in the interior suitable space of main station in action, wear a receiver on one's body with oneself the user, HF transmitter is made up of high-frequency oscillating circuits and coding circuit, and receiver is made of high frequency reception and frequency down circuit, low pass amplifying circuit, waveform shaping circuit, decoding circuit, warning circuit and a vibrator (or buzzer); HF transmitter also can be a unique host pattern and be pasted on the main frame outside, reflector can be used mobile phone host power supply battery, also independently power-supply battery can be arranged, during with the host power supply battery, mobile phone can be inserted in the jack of cell host with an attaching plug, and receiver can be arranged at the appropriate location in a key-ring or the tool; When reflector and receiver exceeded certain distance, buzzer just sent the sound, reminded the user to fetch mobile phone.

The utility model has the advantages that, since the receiver set up can be clipped in people with key-ring or a tool on, in case mobile phone holder has lost mobile phone (having exceeded certain distance between mobile phone holder and the mobile phone), receiver then can remind the mobile phone holder to note fetching mobile phone immediately, brings great convenience to the user and also can reduce province's mistake.

The utility model has following accompanying drawing and accompanying drawing is made brief description.

Accompanying drawing 1 is a floor map of the present utility model.

Accompanying drawing 2 is HF transmitter circuit block diagrams.

Accompanying drawing 3 is HF transmitter basic circuit diagrams.

Accompanying drawing 4 is acceptor circuit block diagrams.

Accompanying drawing 5 is receiver basic circuit diagrams.

Accompanying drawing the 6,7, the 8th, several enforcement illustrations in addition.

Below in conjunction with accompanying drawing architectural feature of the present utility model is described further.

The utility model is by installing one HF transmitter T in the suitable space of phone 1 in action, in addition the phone user wears a receiver A on one's body with oneself and forms in action, wherein HF transmitter T is located in the battery 11 of mobile phone 1 or the main frame 12 suitably the place, spaces (as accompanying drawing 1,6), and be connected with the power line of battery 11, directly use host power supply 11, reflector T is made of high-frequency oscillating circuits T1 and coding circuit T2 (sees accompanying drawing 2 in addition, 3), among the figure coding circuit by the U1 of integrated circuit (IC) coding after, constitute high-frequency generator to aerial emission by triode Q1, receiver A is with a unique host form, add the appropriate location of being located in a key-ring or the tool 2 and all can (see accompanying drawing 1,6), receiver is by a circuit board A01, an one baby battery A02 (1.5V gets final product) and a vibrator A03 (or buzzer) constitute, with power supply independently, its schematic circuit is received and frequency down circuit A1 by high frequency, low-pass amplifier A2, waveform shaping circuit A3, decoding circuit A4 and warning circuit A5 constitute, and be connected to vibrator (or buzzer) AO3 and (see accompanying drawing 4,5), it receives operation principle: after launcher signal is received by receiver antenna L2, after triode Q1 mixing, by U1B filtering, again by decoding by decoder U2 after the U1A shaping and comparing, work as receipts, (receive when the password of sending out is identical, when sending out the device close together), make triode Q2 conducting and triode Q3 is not worked by warning circuit, otherwise, when both passwords (are not promptly received not simultaneously, sending out the device distance when far away) triode Q2 ends, the Q3 conducting, warning circuit work is also sent alarm signal.

As above construct, when receiver A leaves the coverage of reflector T, the vibrator A03 (or buzzer) of receiver A inside promptly produces the caution action of vibration (or buzzing), remind the existing suitable distance of mobile phone 1 and self, this is brought back or has given for change, reaches the purpose that prevents the mobile phone loss; Other is another kind of as shown in Figure 7 embodiment, wherein reflector T is a unique host pattern, and have attaching plug T01 and in action battery 11 appropriate locations of phone 1 be provided with supply hub 111, when HF transmitter T was fixedly arranged on battery 111 outsides with bonding method, making source plug T01 insert supply hub 111 can implement; Perhaps, HF transmitter T itself has independently power-supply battery T02, and the appropriate location (as battery 11 outsides) that reflector T is pasted on mobile phone 1 also can be implemented (as shown in Figure 8); In addition, the HF transmitter T with independent current source battery T02 cooperates with receiver A, and the HF transmitter T of main frame pattern is put (as suitcase, leather trunk) in the people's air defense lost objects, also can reach the anti-function of losing; Technical characterictic of the present utility model also can be applicable to the anti-loss (as camera, video camera) of other carry-on staple products.

The model of the integrated circuit (IC) in the schematic circuit is HOLTEK.

Claims

1, a kind of alarming device that prevents the mobile phone loss, its special sheet is: a HF transmitter is installed in the suitable space in the main station in action, wear a receiver on one's body with oneself the user, HF transmitter is made up of high-frequency oscillating circuits and coding circuit, and receiver is made of high frequency reception and frequency down circuit, low pass amplifying circuit, waveform shaping circuit, decoding circuit, warning circuit and a vibrator (or buzzer).

2, by the described alarming device that prevents the mobile phone loss of claim 1, it is characterized in that: HF transmitter also can be a unique host pattern and be pasted on the main frame outside, can use mobile phone host power supply battery, also independently power-supply battery can be arranged, during with the host power supply battery, mobile phone can be inserted in the jack of cell host with an attaching plug.

3, by the described alarming device that prevents the mobile phone loss of claim 1, it is characterized in that: receiver can be arranged at the appropriate location in a key-ring or the tool.