CN2305025Y - Device for preventing mobile telephone from dropping - Google Patents
Device for preventing mobile telephone from dropping Download PDFInfo
- Publication number
- CN2305025Y CN2305025Y CN97241166U CN97241166U CN2305025Y CN 2305025 Y CN2305025 Y CN 2305025Y CN 97241166 U CN97241166 U CN 97241166U CN 97241166 U CN97241166 U CN 97241166U CN 2305025 Y CN2305025 Y CN 2305025Y
- Authority
- CN
- China
- Prior art keywords
- circuit board
- hyperfrequency
- mobile phone
- pin
- mobile telephone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an anti-losing device for a mobile telephone. The utility model mainly solves the disadvantage that the mobile telephone is easy to lose. The utility model has the technical proposal that a box body is embedded on an external connecting jack of the existing mobile telephone, and the box body is provided with an ultrahigh frequency transmitting circuit board. The electric energy of the ultrahigh frequency transmitting circuit board is provided by a cell assembly of the mobile telephone, so the ultrahigh frequency transmitting circuit board can outward transmit a signal; at the same time, an ultrahigh frequency receiving circuit board is arranged in a casing which can be carried at any time, the electric energy of the ultrahigh frequency receiving circuit board is provided by a button cell which is arranged in the casing, and the ultrahigh frequency receiving circuit board is used for receiving the transmitting signal; thus, when a distance between the casing and the mobile telephone exceeds a setting range, the alarm prompt can be sent out; thereby, the mobile telephone can be effectively prvented from being lost.
Description
The utility model relates to the additional outer relay part that is used on the mobile phone, refers to the anti-device of losing of a kind of mobile phone particularly.
Along with mobile phone (or claiming mobile phone) is more and more universal, the incident of losing mobile phone also increases day by day, this has not only brought the worry of mobile phone loss and work inconvenience to the user, the telephone charges loss that the person's free call on somebody else's expense through illegal means of picking up the mobile phone that even more serious is is caused even higher than the expense of mobile phone loss, the user nourishes trouble and worry invariably.
The purpose of this utility model is exactly that a kind of external device that can prevent its loss effectively that is exclusively used in mobile phone will be provided.
For reaching this purpose, the anti-device of losing of mobile phone that the utility model is designed, has a hyperfrequency radiating circuit plate, be installed in the box body that can plug, supply with this hyperfrequency radiating circuit plate electric energy by this charging external tapping by the battery pack on the mobile phone with the charging external tapping of mobile phone.A hyperfrequency circuit board for receiving, be installed in another housing that is separated with above-mentioned box body, in order to receive the signal that above-mentioned hyperfrequency radiating circuit plate is sent, also be provided with button batteries in this housing, in order to supply with above-mentioned hyperfrequency circuit board for receiving electric energy.When the distance between housing and the box body surpassed the numerical value of setting (about 5 meters), the hyperfrequency circuit board for receiving in the housing can not receive the signal that the hyperfrequency radiating circuit plate in the box body sends, and promptly the warning device that can drive on the circuit board for receiving sends warning.
Advantage of the present utility model is: the radio hyperfrequency is transmitted and received technology be incorporated in the mobile phone, the circumscription socket that makes full use of mobile phone is expanded its function, neither influence the normal use of mobile phone, can externally launch again simultaneously, make signal sampling for receiving system, like this when the housing receiving system of carrying leave hand-held set to the regulation apart from the time, can send chimes of doom at once, note with the prompting user, thereby can prevent lost mobile phone effectively.Characteristics such as in addition, the utility model also has and do not change the mobile phone overall structure, and receiving system is small and exquisite, can together carry with chain, and emission, receiving system consumed power are small, highly sensitive, and antijamming capability is strong.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Fig. 1 is for being plugged on the STRUCTURE DECOMPOSITION schematic diagram of the box body emitter on the mobile phone;
Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram corresponding to the housing receiving system of Fig. 1;
Fig. 3 is the structured flowchart of hyperfrequency radiating circuit plate of the present utility model;
Fig. 4 is the structured flowchart of hyperfrequency circuit board for receiving of the present utility model;
Fig. 5 is a kind of concrete hyperfrequency circuit board for receiving circuit diagram;
Fig. 6 is a kind of concrete hyperfrequency radiating circuit plate circuit diagram.
Be a kind of anti-loss device that is used for ERICSSON type hand-held set shown in the figure, this device comprises a box body that is made of loam cake 6 and following box 5, loam cake 6 is provided with the interface 3 that can peg graft with the charging inlet 2 of mobile phone 1, a hyperfrequency radiating circuit plate 4 is installed in the following box 5, the connection-peg 7 of this hyperfrequency radiating circuit plate 4 links to each other with the charging external tapping 2 of mobile phone 1 by interface 3, provides its work energy by the battery pack on the mobile phone 1.This device also comprise one that be separated with above-mentioned box body, by the housing that upper casing 8, lower casing 9 and minor flaps 13 constitute, a hyperfrequency circuit board for receiving 10 is installed in the lower casing 9 of this housing, four joint button cells 12 are installed in the upper casing 8, tight by minor flaps 13 lid.Button cell 12 provides electric energy by switch 11 to hyperfrequency circuit board for receiving 10.
Fig. 3 illustrates the electric structure frame chart of above-mentioned hyperfrequency radiating circuit plate 4, it is made up of low-frequency oscillator, ultra-high frequency generator, modulator and reflector, the signal that low-frequency oscillator produces is sent into ultra-high frequency generator from its output one tunnel, modulator is sent on another road, the output of ultra-high frequency generator links to each other with modulator, and the output of modulator links to each other with reflector.Fig. 6 illustrates above-mentioned low-frequency oscillator and is made of hex inverter IC (4069), resistance R 14 and capacitor C 11.Ultra-high frequency generator and modulator are made of triode BG, capacitor C 12-C14, electricity group R16, inductance L 4 and antenna L5, and antenna L5 is the microstrip antenna that is made in the printed board, and it constitutes said reflector simultaneously.Its tranmitting frequency is about 200MHZ, and power is about 0.006W.
Fig. 4 illustrates the electric structure frame chart of above-mentioned hyperfrequency circuit board for receiving 10, it is made up of SHF receiver, demodulator, amplifier, wave detector, level conversion and controller and alarm, the signal that SHF receiver is received passes through demodulator successively, send into level conversion and controller behind amplifier and the wave detector, level conversion and controller are controlled alarm work according to the result that signal sampling is handled.Fig. 5 illustrates above-mentioned SHF receiver and is made of triode BG1, resistance R 8, capacitor C, C1, C3 and antenna L3.Demodulator is made of (1), (2) pin of resistance R 5, capacitor C 2, C6 and hex inverter IC1 (4069).Amplifier is made of (3), (4) pin of resistance R 3, R4 and hex inverter IC1.Wave detector is made of (5), (6) pin of capacitor C 8, C9, diode D1, D2 and hex inverter IC1.Level conversion and controller are made of (12), (13) pin of resistance R 1, diode D3 and hex inverter IC1.Alarm is made of (8) pin and the buzzer Y of hex inverter IC1.In addition, above-mentioned hyperfrequency circuit board for receiving 10 also comprises a level sensitive circuit, is made of accurate regulator block IC2 (TL431) and resistance R 10, R12; One indicator light circuit is made of triode BG2, resistance R 11, R13 and light-emitting diode D4, reflects in order to the operating voltage of detection receiving system and by indicator light.
During the utility model work, hyperfrequency radiating circuit plate 4 in the box body that is integrated with mobile phone is ceaselessly outwards launched electric wave, when the hyperfrequency circuit board for receiving 10 in the housing receiving system of carrying receives signal, resonant circuit forms resonance, signal is by resistance R 7 decay, form restituted signal (promptly band is logical amplifies) by (1) pin of delivering to hex inverter IC1 after capacitor C 5 couplings again, and (3) pin of delivering to resistance R 4 and IC1 amplifies, again by diode D1, D2, capacitor C 8, the C9 detection, this moment, (11) pin of hex inverter IC1 became low level by high level, (10) of IC1, (9) pin is a high level, (8) pin of IC1 is a low level, and buzzer Y does not work.When if the distance of mobile phone and the housing receiving system carried surpasses 5 meters, hyperfrequency circuit board for receiving 10 can not receive the signal that hyperfrequency radiating circuit plate 4 sends, this moment, (11) pin of IC1 was a high level, its (10), (9) pin are low level, (8) pin is a high level, drive buzzer Y and report to the police, guarantee the unlikely loss of mobile phone.In addition, when the voltage of the button cell in the housing 12 was higher than 4.5 volts, triode BG2 ended, and light-emitting diode D4 does not work; When voltage was lower than 4.5 volts, accurate regulator block IC2 ended, triode BG2 saturation conduction, and luminous second tube sheet D4 lights, and tells the user need change battery.Experiment shows that warning accuracy rate of the present utility model is up to 99% after tested.
Claims (3)
1, the anti-device of losing of a kind of mobile phone, it is characterized in that it has: 1) hyperfrequency radiating circuit plate, be installed in the box body that can plug, supply with this hyperfrequency radiating circuit plate electric energy by this charging external tapping by the battery pack on the mobile phone with the charging external tapping of mobile phone; 2) hyperfrequency circuit board for receiving, be installed in another housing that is separated with above-mentioned box body, in order to receive the signal that above-mentioned hyperfrequency radiating circuit plate is sent, also be provided with button batteries in this housing, in order to supply with above-mentioned hyperfrequency circuit board for receiving electric energy.
2, the anti-device of losing of mobile phone according to claim 1, it is characterized in that: 1) said hyperfrequency radiating circuit plate is made up of low-frequency oscillator, ultra-high frequency generator, modulator and reflector, the signal that low-frequency oscillator produces is sent into ultra-high frequency generator from its output one tunnel, modulator is sent on another road, the output of ultra-high frequency generator links to each other with modulator, and the output of modulator links to each other with reflector; 2) said hyperfrequency circuit board for receiving is made up of SHF receiver, demodulator, amplifier, wave detector, level conversion and controller, alarm, the signal that SHF receiver is received passes through demodulator successively, send into level conversion and controller behind amplifier and the wave detector, level conversion and controller are controlled alarm work according to the result that signal sampling is handled.
3, the anti-device of losing of mobile phone according to claim 2, it is characterized in that: 1) said low-frequency oscillator is made of hex inverter IC, resistance R 14 and capacitor C 11; Said ultra-high frequency generator and modulator are made of triode BG, capacitor C 12-C14, electricity group R16, inductance L 4 and antenna L5, and antenna L5 is the microstrip antenna that is made in the printed board, and it constitutes said reflector simultaneously; 2) said SHF receiver is made of triode BG1, resistance R 8, capacitor C, C1, C3 and antenna L3; Said demodulator is made of (1), (2) pin of resistance R 5, capacitor C 2, C6 and hex inverter IC1; Said amplifier is made of (3), (4) pin of resistance R 3, R4 and hex inverter IC1; Said wave detector is made of capacitor C 8, C9, diode D1, D2 and hex inverter IC1 (5), (6) pin; Said level conversion and controller are made of (12), (13) pin of resistance R 1, diode D3 and hex inverter IC1; Said alarm is made of (8) pin and the buzzer Y of hex inverter IC1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97241166U CN2305025Y (en) | 1997-08-13 | 1997-08-13 | Device for preventing mobile telephone from dropping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97241166U CN2305025Y (en) | 1997-08-13 | 1997-08-13 | Device for preventing mobile telephone from dropping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2305025Y true CN2305025Y (en) | 1999-01-20 |
Family
ID=33950709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97241166U Expired - Fee Related CN2305025Y (en) | 1997-08-13 | 1997-08-13 | Device for preventing mobile telephone from dropping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2305025Y (en) |
-
1997
- 1997-08-13 CN CN97241166U patent/CN2305025Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |