CN1048368C

CN1048368C - Anti-lose alarm apparatus for moving telephone

Info

Publication number: CN1048368C
Application number: CN93106071A
Authority: CN
Inventors: 杨仁贵
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-17
Filing date: 1993-05-17
Publication date: 2000-01-12
Anticipated expiration: 2013-05-17
Also published as: CN1095532A

Abstract

The present invention relates to an alarm apparatus for preventing a mobile phone from loss, particularly to an alarm apparatus composed of a short-distance receiving circuit, an associated sensing circuit and an alarm circuit, wherein the short-distance receiving circuit can receives local-oscillation weak signals of the local machine of the mobile phone. The alarm apparatus is arranged on a body; when the distance of the mobile phone and the human body exceeds a specific value, the receiving circuit can not receives the local-oscillation signals sent out by the mobile phone on schedule, namely the alarm apparatus reminds users that the mobile phone is far away from the user self by the sensing of the sensing circuit and triggering the alarm circuit to do action, and thus, the loss or the stealing of the mobile phone can be effectively prevented.

Description

Anti-lose alarm apparatus for moving telephone

The present invention relates to a kind of anti-lose alarm apparatus for moving telephone.

Press the claimer of industrialization society institute now, i.e. effective grasp on ageing, be with, the use that is subjected to industrial and commercial circles for mobile phone now at large is an example, though having, mobile phone connects the convenience of dialing, but on actual the use, also there is its puzzlement to exist, be that these mobile phones are portable article, because the relation of its volume and weight can't directly place in the pocket as business card, carries this measure at any time and must hold with hand, promptly easy carelessness because of the user causes loss or forgets where be positioned over, and causes user's loss.

The object of the invention is to provide a kind of anti-lose alarm apparatus for moving telephone, to overcome the shortcoming that prior mobile phone is easily lost, this creator warp is tested concentratedly and is studied, and in line with the creation spirit of working with perseverance, creates a kind of anti-lose alarm apparatus for moving telephone eventually.

According to a kind of anti-lose alarm apparatus for moving telephone of the present invention, be one can receive the hyperfrequency short distance reception alarming device of faint number of the local oscillations of this machine of mobile phone, it is characterized in that comprising: high frequency receiving circuit, testing circuit and caution integrated circuit, described testing circuit is made of the transistor of two serial connections, be located between high frequency receiving circuit and the caution integrated circuit, the caution IC interior is provided with caution sound generator and voice generator, and have some contacts and can be connected with a selector switch, the caution integrated circuit have many group outputs respectively with vibrating motor, buzzer and voice loudspeaker connect, make when but mobile phone surpasses its range of receiving, according to the setting pattern of selector switch, with vibrating motor, buzzer or voice loudspeaker produce the sound.

Owing to the anti-lose alarm apparatus for moving telephone that designs at mobile phone of the present invention, form by hyperfrequency short distance reception circuit, correlation detecting circuit and acknowledge circuit, so can in mobile phone from control oneself above receiving circuit receivable apart from the time, make the acknowledge circuit action, see through voice loudspeaker, buzzer or vibrating motor, note with the prompting user, thereby prevent mobile phone loss or stolen effectively.

For making the relevant personnel can further understand structure of the present invention, feature and other purposes, now in conjunction with the accompanying drawings embodiments of the invention are described in detail as the back:

Fig. 1 is the anti-calcspar that loses attention device of phone of the present invention;

Fig. 2 is a detailed circuit diagram of the present invention.

As shown in Figure 1, anti-lose alarm apparatus for moving telephone of the present invention is mainly a kind of radio reception attention device, received at the faint signal tranmitting frequency of the local oscillations of this machine of mobile phone, whether receive signal according to it, whether far away excessively to differentiate mobile phone with respect to user's distance, and produce automatic warning function, and note to remind the user, prevent mobile phone loss.Its textural high-frequency amplifier circuit 10, frequency down circuit 20, detecting circuit 30, testing circuit 40 and caution integrated circuit 50 of comprising.Wherein, this high-frequency amplifier circuit 10, frequency down circuit 20 and detecting circuit 30 constitute a hyperfrequency receiving lines, to receive the local oscillations signal of being launched from this machine of mobile phone, and follow-up testing circuit 40 inputs in the caution integrated circuit 50 after signal is suitably amplified, these caution integrated circuit 50 inside are main composition with a warning tones generator 51 and a voice generator 52, the output of warning tones generator 51 is connected with a selector switch 53, and two selection outputs of selector switch 53 are connected with buzzer 55 and vibrating motor 54 respectively, another selects output then to be connected with voice generator 52, and the output of voice generator 52 is connected with voice loudspeaker 56 again.

Effective receiving range of aforementioned receiving circuit is set at short distance and is about about one to two meter, and when mobile phone therewith the distance of alarming device in coverage, this alarming device can receive signal as scheduled, and amplify by testing circuit 40 and to export in the caution integrated circuit 50, cause its unlikely triggering following caution structure action, otherwise, when the mobile phone distance surpasses effective range of receiving, because no signal inputs in the caution integrated circuit 50, cause warning tones generator 51 to produce output signal, and according to the selected state of user to selector switch 53, make vibrating motor 54 vibrations or buzzer 55 produce and warn sound, or cause voice loudspeaker 56 to send the voice of prompting by voice generator 52, and note to remind the user, avoid mobile phone to lose thereby can reach because of carelessness.

About detailed circuit structure of the present invention, can cooperate referring to shown in Figure 2, high-frequency amplifier circuit 10 cooperates antenna 12,

variable capacitor

14 and 15, fixed capacitor and the related resistors of peripheral position to form with a transistor 11.The signal that receives is via aforementioned capacitor and variable capacitor 14, after 15 resonant network that constituted give resonance, after transistor 11 is done the high-frequency signals amplification, enter again by some with inductance, the frequency down circuit 20 that a passive device such as resistance and electric capacity and a transistor 21 are constituted, carrying out frequency reducing and signal amplifies, then by

detector diode

31,32, the detecting circuit 30 that capacitor 33 and resistance 34 are formed is removed the high frequency composition in the signal, and the output low frequency signal partly, follow-up by two transistor 41 in addition, 42 serial connections constitute a testing circuit 40 as electronic switch, with at detecting circuit 30 output signal and do logical whether, disconnected action, and the output of testing circuit 40 is connected with the control input end of caution integrated circuit 50, caution integrated circuit 50 belows are provided with selector switch 53 and associated contacts, the right side then with each group output respectively with vibrating motor 54, buzzer 55 and voice loudspeaker 56 connect; When aforementioned mobile phone is positioned at effective range of receiving, this detecting circuit 30 has an output signal, cause testing circuit 40 outputs to be low-potential state, order caution integrated circuit 50 is non-action state, and when mobile phone surpassed effective range of receiving, this testing circuit 40 was failure to actuate, high potential order caution integrated circuit 50 actions of its output, and under the set condition of selector switch 53, make output mechanism action wherein, reach the effect of reminding the user.

What deserves to be explained is that the employed communication channel of mobile phone includes for being exclusively used in " conversation channel " of conversation and being exclusively used in " the control channel " that data are got in touch with between control mobile phone and base station.System is an example with the world common AMPS (automatic information processing), its communication frequency is by 870,030MHz～889, cook up 666 " communication channels " between the 980MHz altogether, each channel frequency range is 30KHz, its medium frequency 870,333 " conversation channels " are cooked up in 030MHz～879 among the 990MHz; From 880,020～880, cook up 21 " control channels " among the 620MHz again; From 880,650～889, cook up 312 " conversation channels " among the 980MHz, that is in the AMPS system, add up to be provided with 645 " conversation channels " and 21 " control channel ".Again, the mobile phone of arbitrary employing AMPS system, the inevitable channel of selecting in aforementioned 21 " control channels " uses as its local oscillations signal, and the i.e. state of conversation not under holding state promptly continues to keep in touch between local oscillations signal and base station by this; And when mobile phone was desired to give orders or instructions, promptly local oscillations signal and base station were got in touch by this, conversed to obtain idle at that time " conversation channel ".

At above-mentioned characteristic, detecting circuit 30 of the present invention is promptly made signal at the frequency range of " control channel " and is detected (with the AMPS system, promptly at 880,020～880, the frequency range of 620MHz is made signal and detected); Utilize aforementioned two

variable capacitances

14,15 that are positioned at high-frequency amplifier circuit 10 simultaneously, can adjust, cause detecting circuit 30 to be detected at the local oscillations signal that this machine of mobile phone is set at multi-form mobile phone working frequency.

In addition, radio reception attention device of the present invention can be made into exquisite body, is convenient to put pocket or is hung on the waist border, and can do the detection of effective range at any time to this machine of mobile phone.

Again, the receiving range that preset radio of the present invention receives attention device and this machine of mobile phone is between 1 meter～2 meters, and generally speaking, the user is under normal portable state, and this machine of mobile phone surpasses this distance with attention device when unlikely, and the malfunction caution sound; Simultaneously other people this machine of mobile phone of carrying also is not easy to enter this receiving range (unless embracing), causes the misconnection receipts of signal or signal heavily to cover reception; So-called signal heavily covers reception, be meant that attention device receives the local oscillations signal that I reach other people mobile phone simultaneously, this moment since attention device do not do toot ring caution and its this machine of mobile phone does not also break away from the caution scope, so it is reasonable enable state, does not influence this case alarm function.

The misconnection of so-called signal is received, be meant that local oscillations signal that attention device receives is sent for other people this machine of mobile phone, attention device should send its this machine of mobile phone of sound caution holder and broke away from detection range this moment, only but receive the local oscillations signal of the mobile phone (and entering 2 meters) of same pattern that other people hold, so do not send the caution sound with interior detection range because of the attention device misconnection.The situation of this kind misconnection receipts must occur in and closely connects with other people and lose this machine of mobile phone simultaneously at this moment; As described above, because closely connecing situation, this kind be difficult for taking place, maintenance also cannot be sustained, therefore when its situation that closely connects releasing with other people, this kind misconnection is received the state of others' mobile phone signal and is eliminated at once, attention device just sends the caution sound at once and reminds, and continues for a long time owing to must keep between this misconnection time receiving, and therefore still can very promptly warn the user gives the mobile phone of forgeing for change.

Claims

1. anti-lose alarm apparatus for moving telephone, be one can receive the hyperfrequency short distance reception alarming device of faint number of the local oscillations of this machine of mobile phone, it is characterized in that comprising: high frequency receiving circuit, testing circuit and caution integrated circuit, described testing circuit is made of the transistor of two serial connections, be located between high frequency receiving circuit and the caution integrated circuit, the caution IC interior is provided with caution sound generator and voice generator, and have some contacts and can be connected with a selector switch, the caution integrated circuit have many group outputs respectively with vibrating motor, buzzer and voice loudspeaker connect, make when but mobile phone surpasses its range of receiving, according to the setting pattern of selector switch, with vibrating motor, buzzer or voice loudspeaker produce the sound.

2. anti-lose alarm apparatus for moving telephone as claimed in claim 1 is characterized in that described high frequency receiving circuit is made up of high-frequency amplifier circuit, frequency down circuit and detecting circuit.

3. anti-lose alarm apparatus for moving telephone as claimed in claim 2 is characterized in that, described amplifying circuit inside is provided with variable capacitor, can be calibrated its receive frequency at specific mobile phone.