CN2330115Y

CN2330115Y - Anti-losing handset cell

Info

Publication number: CN2330115Y
Application number: CN97241305U
Authority: CN
Inventors: 潘龙胜; 吴新洲
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-22
Filing date: 1997-09-22
Publication date: 1999-07-21
Anticipated expiration: 2007-09-22

Abstract

The utility model relates to an anti-losing handset cell which is provided with a handset cell, a transmitter and a receiver, wherein the transmitter is arranged in the handset cell to form integration, and the receiver is arranged on a user of a handset; when the handset is departed from the user for definite distance, the receiver emits alarming sound to remind the user to prevent from losing the handset. The transmitter can use an F1, an F2, an R1 and a C1 to form a low-frequency oscillating circuit which is connected with a reverse phase of an F3 and then is connected with a base plate of a triode BG1, a C2 and an L2 are connected between a base electrode and a collecting electrode to form an LC resonance circuit, and the transmitter transmits signals with definite frequencies through the circuit. The receiver receives, mediates and amplifies signals and then judge the signals to use an alarming sound type to remind the user of the handset to prevent from losing the handset.

Description

The anti-battery of mobile phone of losing

The anti-battery of mobile phone of losing relates to cordless telephone (mobile phone) battery.

Existing battery of mobile phone respectively has the similarities and differences in profile and aspect of performance, but does not all have the anti-function of losing.

The objective of the invention is to lose this phenomenon of mobile phone easily and propose a kind ofly have the anti-battery of mobile phone of losing to overcome above-mentioned situation at the user.

Scheme of the present utility model is to settle a slice radiating circuit in battery of mobile phone, and this circuit is to the faint radio modulation ripple of spatial emission.The receiving unit receiver is placed on one's body the user, receiving circuit amplifies the signal demodulation, send into output loop after the judgement, when leaving user's certain distance (setting 2M) receiver, the mobile phone that the reflector battery is housed receives signal weakening, the output loop action, the buzzer warning sounding, the prompting user fetches mobile phone, prevents to lose.

Realizing that the above-mentioned functions circuit form can adopt multiple mode, wherein much is known circuits.

Providing the utility model below in conjunction with accompanying drawing further specifies.

Fig. 1 is the radiating circuit block diagram, and Fig. 2 is the receiving circuit block diagram, and Fig. 3 is a radiating circuit, and Fig. 4 is a receiving circuit.

The principle explanation:

1. radiating circuit: this circuit is made up of low-frequency oscillation and higher-order of oscillation two parts, with triode BG1 is three not gate F1 that the higher-order of oscillation of core partly is integrated circuit 4069, F2, resistance R 1, the low-frequency oscillation that capacitor C 1 is formed is partly modulated, and makes that the signal of launching from garden ring printed antenna L2 is a modulating wave, is convenient to the receiver demodulation, not gate F3 is an inverter, is used for low-frequency modulation signal is shaped as front and back along steeper square-wave signal.

2. receiving circuit: with triode BG1 is that core constitutes Armstrong circuit, come out in order to the carrier signal demodulation that transmitter is sent, the low frequency signal that demodulates is through triode BG2, and BG3 amplifies, the double-tone warning phonation circuit that control is made of parts such as not gate F1-F4.When the close together between radiating circuit and the receiving circuit, the signal amplitude that demodulates is bigger, further increase through triode BG2 amplified signal amplitude, make triode BG3 be in the saturation conduction state, A point current potential is low, double-tone warning phonation circuit is not worked, and triode BG4 ends, alarm free sound.When mobile phone together with battery during away from the user, received signal weakens, triode BG3 is in and amplifies or cut-off state, makes A point current potential rise, double-tone warning phonation circuit is worked, buzzer sends the chimes of doom of " ticking ".

The utility model can realize that entire circuit can be selected different frequency emission reception work, has same effect with multiple circuit form.

Claims

1. the anti-battery of mobile phone of losing has battery of mobile phone, reflector and receiver, it is characterized by radiating circuit is placed in to make it in the battery of mobile phone to be integral.

2. according to the described anti-loss battery of mobile phone of claim, it is characterized in that by not gate F1, F2, resistance R 1, capacitor C 1 is formed low-frequency oscillatory network and is met not gate F3 and connect triode BG1 base stage after anti-phase, capacitor C 2, and antenna L2 is connected on and constitutes the LC resonant tank between triode BG1 base stage and the collector electrode, power supply is formed radiating circuit through inductance L 1 input, and this circuit is placed in the battery of mobile phone.

3. according to claim 1,2 described anti-loss batteries of mobile phone, it is characterized in that triode BG1 (C3355) and antenna, capacitor C 1 grade constitutes Armstrong circuit, received signal by triode BG1 collector electrode through resistance R 5, capacitor C 6 is connected to triode BG2 base stage and amplifies, signal connects triode BG3 base stage through triode BG2 collector electrode by capacitor C 7 couplings and amplifies through triode BG3 again, amplified signal is connected to by not gate F1-F4 through diode D1, triode BG4, the double-tone alarm transmission circuit that bell Bell forms.