CN2849857Y - Wireless antitheft apparatus for cell phone - Google Patents
Wireless antitheft apparatus for cell phone Download PDFInfo
- Publication number
- CN2849857Y CN2849857Y CN 200520143620 CN200520143620U CN2849857Y CN 2849857 Y CN2849857 Y CN 2849857Y CN 200520143620 CN200520143620 CN 200520143620 CN 200520143620 U CN200520143620 U CN 200520143620U CN 2849857 Y CN2849857 Y CN 2849857Y
- Authority
- CN
- China
- Prior art keywords
- wireless remote
- cell phone
- wireless
- remote control
- control
- 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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- Selective Calling Equipment (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The utility model discloses a wireless anti-theft apparatus for a cell phone, which comprises an emitter and a receiving alarm, wherein the emitter is composed of a wireless remote-control emitting module A1; the receiving alarm is composed of a wireless remote-control receiving module A2, an integrating circuit of a simulating sound A3, etc. The utility model is characterized in that the wireless remote-control emitting module A1 is arranged in the casing of the cell phone; a working battery E1 of the cell phone E1 and a spare battery E2 of the cell phone supply power to the wireless remote-control emitting module A1. The utility model has the advantages that the wireless remote-control emitting module A1 is arranged in the casing of the cell phone; the working battery E1 of the cell phone E1 and the spare battery E2 of the cell phone supply the power to the wireless remote-control emitting module A1. When working, the effective emitting distance of the emitter is arranged within 1.5 meters; in the effective action distance range, the integrating circuit of the simulating sound A3 does not work because TG feet are in low level; when distance between a receiving and an emitting machines is larger than 1.5 meters, the wireless remote-control receiving module A2 can not receive emitting signals with sufficient intensity to drive B to emit an alarming sound, obtaining the purpose of wireless alarming.
Description
Technical field
The utility model relates to the antitheft mobile phone device, especially relates to the mobile phone wireless alarm.
Background technology
Mobile phone has been widely used in daily life, the work as the modern communication instrument.Thing followed hand-set from stolen incident takes place repeatedly, especially on the many occasions of people, bus, this type of hand-set from stolen incident is of common occurrence, and this causes damage not only for people's property, and stored the losing of institute also given people's work, lived and brought many inconvenience in the mobile phone.
The utility model content
The purpose of this utility model is to provide a kind of mobile phone wireless alarm that can realize radio alarming when hand-set from stolen breaks away from the user.
For achieving the above object, the utility model can be taked following technical proposals:
Mobile phone wireless alarm described in the utility model, it comprises the transmitter that wireless remote control transmitter module A1 constitutes, reception alarm with formations such as wireless remote control receiver module A2, simulated sound integrated circuit A3, it is characterized in that: described wireless remote control transmitter module A1 is installed in the handset shell, and its power supply is provided by operating handset battery E1 and standby battery of mobile phone E2.
The concealed antenna of the described wireless remote control transmitter module A1 frequency that goes out of spatial emission towards periphery is the ultrahigh frequency modulated electromagnetic wave of 250～300MHz.
Advantage of the present utility model is described wireless remote control transmitter module A1 is installed in the handset shell, and its power supply is provided by operating handset battery E1 and standby battery of mobile phone E2.During work, effective transmitting range of described transmitter is set in 1.5 meters, in the EFFECTIVE RANGE scope, received by the miniature receiving antenna in the wireless remote control receiver module A2, after internal circuit demodulation, amplification, detection, time-delay and level conversion, from the 3rd pin output low level, simulated sound integrated circuit A3 does not work because of the TG pin is in low level, triode BG1 ends, and news Chinese percussion instrument B is sounding not.In case the distance between the transceiver is above 1.5 meters, wireless remote control receiver module A2 will can not receive transmitting of sufficient intensity, so the 3rd pin saltus step of wireless remote control receiver module A2 is a high level, thereby trigger mode onomatopoeia integrated circuit A3 internal circuit work, and " sting-rub-a-dub " acoustoelectric signal of storage in exporting repeatedly by the OUT pin, after the BG1 power amplification, drive B and send chimes of doom, thereby realize the purpose of radio alarming.
Description of drawings
Fig. 1 is a wireless remote control transmitter circuit schematic diagram of the present utility model.
Fig. 2 is that wireless remote control of the present utility model receives the alarm circuit schematic diagram.
Embodiment
As shown in the figure, mobile phone wireless alarm described in the utility model, it comprises the transmitter that wireless remote control transmitter module A1 constitutes, reception alarm with formations such as wireless remote control receiver module A2, simulated sound integrated circuit A3, described wireless remote control transmitter module A1 is installed in the handset shell, and its power supply is provided by operating handset battery E1 and standby battery of mobile phone E2.The concealed antenna of the described wireless remote control transmitter module A1 frequency that goes out of spatial emission towards periphery is the ultrahigh frequency modulated electromagnetic wave of 250～300MHz, and its effective transmitting range is set in 1.5 meters.
Claims (2)
1, a kind of mobile phone wireless alarm, it comprises the transmitter that wireless remote control transmitter module A1 constitutes, reception alarm with formations such as wireless remote control receiver module A2, simulated sound integrated circuit A3, it is characterized in that: described wireless remote control transmitter module A1 is installed in the handset shell, and its power supply is provided by operating handset battery E1 and standby battery of mobile phone E2.
2, mobile phone wireless alarm according to claim 1 is characterized in that: the concealed antenna of the described wireless remote control transmitter module A1 frequency that goes out of spatial emission towards periphery is the ultrahigh frequency modulated electromagnetic wave of 250～300MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143620 CN2849857Y (en) | 2005-12-21 | 2005-12-21 | Wireless antitheft apparatus for cell phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143620 CN2849857Y (en) | 2005-12-21 | 2005-12-21 | Wireless antitheft apparatus for cell phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849857Y true CN2849857Y (en) | 2006-12-20 |
Family
ID=37522338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520143620 Expired - Fee Related CN2849857Y (en) | 2005-12-21 | 2005-12-21 | Wireless antitheft apparatus for cell phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849857Y (en) |
-
2005
- 2005-12-21 CN CN 200520143620 patent/CN2849857Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061220 Termination date: 20100121 |