CN1095532A

CN1095532A - Anti-lose alarm apparatus for moving telephone

Info

Publication number: CN1095532A
Application number: CN93106071A
Authority: CN
Inventors: 杨仁贵
Original assignee: YANG REN GUI
Current assignee: YANG REN GUI
Priority date: 1993-05-17
Filing date: 1993-05-17
Publication date: 1994-11-23
Anticipated expiration: 2013-05-17
Also published as: CN1048368C

Abstract

The invention relates to a kind of anti-lose alarm apparatus for moving telephone, particularly a kind of short distance reception circuit by the faint signal of local oscillations that can receive this machine of mobile phone, the attention device that relevant checking circuit and acknowledge circuit are formed, on one's body this attention device placed, when surpassing a specific range between mobile phone and human body, the local oscillations signal that causes this receiving circuit to receive mobile phone as scheduled to be sent, can detect by checking circuit, and alerts triggered circuit operation, remind this mobile phone of user to leave own hypertelorism, effectively prevent mobile phone loss or stolen thereby reach.

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.

The anti-lose alarm apparatus for moving telephone that designs at mobile phone of the present invention, form by hyperfrequency short distance reception circuit, relevant checking circuit and acknowledge circuit, can in mobile phone from oneself surpass receiving circuit receivable apart from the time, make the acknowledge circuit action, see through voice loudspeaker, buzzer or vibrating motor, to remind the user to note, effectively to prevent mobile phone loss or stolen.

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 by 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), checking 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 checking circuit (40) inputs in the caution integrated circuit (50) after signal is suitably amplified, this caution integrated circuit (50) is inner to be 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 made as short distance (being about about 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 checking 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 the caution sound, or cause voice loudspeaker (56) to send the voice of prompting by voice generator (52), to remind the user to note, avoid mobile phone to lose because of carelessness thereby can reach.

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), (15) after the resonant network that is constituted gives 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, doing frequency reducing and signal amplifies, more through follow-up 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 connection constitutes a checking circuit as electronic switch (40), with at detecting circuit (30) output signal and do logical whether, disconnected action, and the output of checking circuit (40) is connected with the control input end of caution integrated circuit (50), caution integrated circuit (50) below is 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 checking circuit (40) output to be low-potential state, order caution integrated circuit (50) is non-action state, and when mobile phone surpassed effective range of receiving, this checking circuit (40) was failure to actuate, high potential order caution integrated circuit (50) action 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, the employed communication channel of mobile phone, including for " the control channel " that be exclusively used in " conversation channel " of conversation and be exclusively used in data contact between control mobile phone and base station with the common AMPS(automatic information processing in the world) system is example, its communication frequency is by 870,030 MHz～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, arbitrary mobile phone that adopts the AMPS system, the inevitable channel of selecting in aforementioned 21 " control channels " uses as its local oscillations signal, under holding state (promptly not the state of conversation), promptly continues between local oscillations signal and base station by this to keep communicating; And when mobile phone was desired to give orders or instructions, promptly local oscillations signal and base station double hit obtained at that time idle " conversation channel " and converse by this.

At above-mentioned characteristic, detecting circuit of the present invention (30) is promptly made signal detecting (with the AMPS system, promptly at 880,020～880, the frequency range of 620MHz is made signal detecting) at the frequency range of " control channel "; Utilize aforementioned two variable capacitances (14), (15) that are positioned at high-frequency amplifier circuit (10) simultaneously, can adjust at multi-form mobile phone working frequency, cause detecting circuit (30) to be detected at the local oscillations signal that this machine of mobile phone is set.

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 detecting of effective range at any time at 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 reconnaissance range this moment, only but receive the local oscillations signal of the mobile phone (and entering two meters) of same pattern that other people hold, so do not send the caution sound with interior reconnaissance 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, a kind of 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, checking circuit and caution integrated circuit, described checking circuit is a transistor switch structure, 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, must be when but mobile phone surpasses its range of receiving, according to the setting pattern of selector switch, with vibrating motor, buzzer becomes the voice loudspeaker to 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.