CN2154568Y

CN2154568Y - Automatic dialing machine for telephone

Info

Publication number: CN2154568Y
Application number: CN 93233548
Authority: CN
Inventors: 何震川
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-25
Filing date: 1993-03-25
Publication date: 1994-01-26
Anticipated expiration: 2003-03-25

Abstract

The utility model provides an automatic dialing machine for a telephone, which is composed of a polar control circuit (1), a take-up switch (2), an AC blocking DC circuit (3), a phase locked loop circuit (4), a time accumulator (5), a trigger (6), an electronic switch (7), a dialing driving circuit (8), a dialing signal generator (9), a trigger redialing device (10), an amplifying alarm circuit (11), an alarm signal generator (12), a zero-locating device (13), a zero-locating device (14), a delay trigger (15), a monostable trigger (16) and a counter (17). The utility model utilizes power supply provided by an exchanger of an electronic communication department and is matched and connected with the existing telephone to be used. As long as a user dial telephone number for one time, the utility model can carry out automatic dialing continuously until getting through to remind the user to ring up, which is convenient for the user.

Description

Automatic dialing machine for telephone

The utility model relates to the telephone communication device that the user uses, and further is meant the telephone automatic dialing machine of being convenient to the telephone set use that a kind of and existing telephone machine is attached.

The novel phone that uses is dual-tone dialing at present, has manual redialing function, promptly after having dialled the other side's number, if the phone access failure and hear be busy-back signal the time, can press redial key then by the take-up of take-up button, telephone set was dialled the number and was redialed once with being about to the front this moment.Like this, brought certain convenience to the user.But at present phone is busy and phenomenon that do not get through is very serious, particularly toll telephone, and dialling obstructed is ordinary affair, owing to must keep in the other ceaselessly dialing of telephone set, has wasted user's time, therefore still has very big inconvenience.Several telephone automatic dialing units of patent applied for, structure are too complicated, user installation wiring trouble (needing the professional could install) during the use that has, and the needs that have dispose power supply in addition and use inconvenience, so are difficult to apply in practice.

The purpose of this utility model, be to provide a kind of and the matched use of existing telephone machine, only need the user to dial that telephone number just can constantly dial automatically and until putting through the telephone automatic dialing machine that the back reminds the user to converse.

Referring to Fig. 1 the utility model electricity functional-block diagram, the utility model solution is as follows.Its circuit part has a polarity control circuit (1), its output links to each other with the input of take-up switch (2) with phase-locked loop circuit (4) simultaneously, the output B of take-up switch (2) blocks DC power supply (3) with exchanging simultaneously, triggering the input of redialer (10) and zero setting device (13) and the output of dialing drive circuit (8) joins, trigger redialer (10) output and redial control signal to dialing signal generator (9) input, make the input of dialing signal generator (9) output dialing signal to dialing drive circuit (8), a control output end of dialing signal generator (9) links to each other with the input of zero setting device (14), the output of phase-locked loop circuit (4) simultaneously when long-pending the input of device (5) and time-delay trigger (15) join, the output of time-delay trigger (15) sum counter (17) links to each other with the input of monostable trigger (16) simultaneously, the switch terminals that monostable trigger (16) output pulse control signal is given electronic switch (7), another switch terminals of electronic switch (7) links to each other with the control end of take-up switch (2), the output of device (5) and the input of trigger (6) join when long-pending, the output of trigger (6) links to each other with the control end of electronic switch (7) and the input of alarm signal generator (12) simultaneously, the output of alarm signal generator (12) is connected to and amplifies warning circuit (11), the output C of zero setting device (14) links to each other with the offset side of trigger (6) with zero setting end that triggers redialer (10) and dialing drive circuit (8) simultaneously, the output E of zero setting device (13) joins with the zero setting end of time-delay trigger (15) and monostable trigger (16) and the startup trigger end of dialing signal generator (9) simultaneously, exchanges blocking-up DC power supply (3) and provides dc supply for entire circuit.

The utility model with foregoing circuit structure is loaded on it in shell when concrete the use, the input of polarity control circuit (1) is attempted by telecommunications office gives on the power line of telephone set, and the power supply that utilizes telecommunications office to provide carries out work.Connect the control switch in the polarity control circuit (1), the plus or minus direct voltage that comes from telecommunications office becomes positive voltage after Polarity Control, again through take-up switch (2) (being initially logical) with exchange blocking-up DC power supply (3) filtering after, offer other circuit as dc supply.Want the telephone number beaten when the user dials on the keyboard of dialing signal generator (9), then dialing signal generator (9) sends double-audio signal and allows dialing drive circuit (8) send to telecommunications office's switch.

If what telecommunications office's switch was beamed back is busy-back signal, then behind phase-locked loop circuit (4) frequency discrimination, become pulse signal, utilize its logical sound pulse spacing big, and little characteristics of busy tone pulse spacing, when being busy tone, because the pulse spacing is little, device (5) was not exported trigger impulse when this moment was long-pending, trigger (6) does not trigger, and time-delay trigger (15) postpones through after a while, to touch out trigger impulse to monostable trigger (16), make monostable trigger (16) output pulse and electronic switch (7) by being in on-state, allowing take-up switch (2) turn-off makes an appointment, give take-up signal of telecommunications office's switch,, trigger redialer (10) and be triggered when take-up switch (2) when connecting again, and output redials control signal to dialing signal generator (9), make the telephone number that it will be dialled redial once automatically, and form circulation, till phone is put through with this.

When behind the subscriber dialing sign indicating number from telecommunications office's switch beam back be logical sound the time, because the pulse spacing of logical sound is big, device (5) output trigger impulse when this moment is long-pending, make trigger (6) upset, electronic switch (7) is turn-offed, can not pass through electronic switch (7) with the trigger impulse that guarantees monostable trigger (16) output take-up switch (2) is turn-offed.Simultaneously, trigger (6) output signal makes alarm signal generator (12) connect amplification warning circuit (11) and makes audible alarm, reminds the subscriber phone on, can take the microphone on the existing telephone machine converse.

The effect of zero setting device (14) is, when dialing signal generator (9) when sending dialing signal, with trigger (6) with trigger redialer (10) zero setting, to guarantee normal operation circuit; Zero setting device (14) also has an effect, provides biasing circuit for dialing drive circuit (8) exactly.The effect of zero setting device (13) is, rigidly connect logical or take-up switch (2) rigidly connects when logical at dialing signal generator (9), each circuit still is in non-steady state, for preventing the take-up signal of monostable trigger (16) output error, by zero setting device (13) to time-delay trigger (15) and monostable trigger (16) zero setting; Zero setting device (13) also has an effect, exactly the pulse of providing permission to start for dialing signal generator (9).The effect of counter (17) is, when telephone exchange beam back be non-signal tone (450Hz) time, phase-locked loop circuit (4) does not react and no pulse output, at this moment answer take-up, dialing automatically again again is promptly after after a while, if each trigger does not all trigger, then make monostable trigger (16) upset by timer (17) output one pulse, take-up switch (2) turn-offs, thereby redials once more.The effect that exchanges blocking-up DC power supply (3) is, because the power supply of this dial set is provided by the switch of telecommunications office, therefore on the same line road, also transmitting signal tone and double-tone is dialled tone signal frequently, in order to guarantee the line signal normal transmission, also in order to make this dial set obtain a certain amount of operating current, ad hoc this exchanges blocking-up DC power supply (3), and it, exchanges to disconnected for logical direct current.

The utility model matches with the existing telephone machine, only need the user to dial that telephone number just can constantly redial automatically and till putting through, put through the back by reminding user's communication with audible alarm, this has just saved the user greatly and has kept in the other time of telephone set, is very easy to the user.It utilizes telecommunications office's switch to offer the power supply of existing telephone machine, itself needn't charged source, and wiring is simple, and the user need not the professional just can be voluntarily and the matched use of existing telephone machine, also do not have the trouble of changing battery and so in the use.PHASE-LOCKED LOOP PLL TECHNIQUE is used for the processing of telephone signal tone, makes circuit simple, reliable, also be convenient to adjust.Exchange the setting of blocking-up DC power supply, guaranteed the normal transmission of line signal.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model electricity functional-block diagram;

Fig. 2 adds the schematic diagram of Fig. 3 for a kind of physical circuit of Fig. 1 block diagram.

Referring to Fig. 2 and Fig. 3, polarity control circuit (1) is by Polarity Control K switch and diode D ₁To D ₄Form.Take-up switch (2) is by triode T ₁To T ₃And resistance R ₄With R ₅Form.Exchange blocking-up DC power supply (3) by triode T ₉, voltage-stabiliser tube DW ₂, resistance R ₂₀With R ₂₁And capacitor C ₁₅With C ₁₆Form V _DOutput is by voltage-stabiliser tube DW ₁, diode D ₅, resistance R ₁With R ₂And capacitor C ₁Form V _C1Output is by diode D ₆, resistance R ₃And capacitor C ₂Form V _C2Output.Phase-locked loop circuit (4) is by phase-locked loop intergrated circuit IC ₁, potentiometer RW ₁, resistance R ₆With R ₇And capacitor C ₃To C ₆Form.Device (5) is by time-base integrated circuit IC when long-pending _2-1, triode T ₅, diode D ₈, potentiometer RW ₃, resistance R ₈To R ₁₀And capacitor C ₇Form.Trigger (6) is by d type flip flop IC _3-1And resistance R ₁₁Form.Electronic switch (7) is by triode T ₄, diode D ₇With D ₉And resistance R ₁₂With R ₂₈Form.Dialing drive circuit (8) is by triode T ₈, potentiometer RW ₂, resistance R ₁₇To R ₁₉And capacitor C ₁₂To C ₁₄Form.Dialing signal generator (9) is by communication dialing integrated circuit (IC) ₆, dialed digit dish BHP, quartz crystal XJ, resistance R ₃₄And capacitor C ₂₃With C ₂₄Form.Trigger redialer (10) by d type flip flop IC _3-2, triode T ₁₀, voltage-stabiliser tube DW ₃, resistance R ₃₂With R ₃₃And capacitor C ₂₁With C ₂₂Form.Amplify warning circuit (11) by loudspeaker SPK, triode T ₆With T ₇, resistance R ₁₃To R ₁₆And capacitor C ₉To C ₁₁Form.Alarm signal generator (12) is by music integrated block IC ₅, resistance R ₁₂And capacitor C ₈Form.Zero setting device (13) is by triode T ₈With T ₉, diode D ₁₀To D ₁₄, resistance R ₂₉To R ₃₁And capacitor C ₂₀Form.Zero setting device (14) is by triode T ₁₁And resistance R ₃₅With R ₃₆Form.Time-delay trigger (15) is by d type flip flop IC _4-1, potentiometer RW ₄, resistance R ₂₂To R ₂₄And capacitor C ₁₇Form.Monostable trigger (16) is by d type flip flop IC _4-2, resistance R ₂₇And capacitor C ₁₉Form.Counter (17) is by time-base integrated circuit IC _2-2, diode D ₁₅, potentiometer RW ₅, resistance R ₂₅With R ₂₆And capacitor C ₁8 form.

Referring to Fig. 2, the output E of zero setting device (13) is respectively E ₁, E ₂And E ₃Three branch outputs link to each other with the zero setting end of time-delay trigger (15) and monostable trigger (16) and the startup trigger end of dialing signal generator (9) respectively.Dialing signal generator (9) is from IC ₆D foot output dialing signal to the D end of dialing drive circuit (8) for its driving.

Claims

1, a kind of telephone automatic dialing machine, it is characterized in that, circuit part has polarity control circuit (1), its output links to each other with the input of take-up switch (2) with phase-locked loop circuit (4) simultaneously, the output B of take-up switch (2) blocks DC power supply (3) with exchanging simultaneously, triggering the input of redialer (10) and zero setting device (13) and the output of dialing drive circuit (8) joins, trigger redialer (10) output and redial control signal to dialing signal generator (9) input, make the input of dialing signal generator (9) output dialing signal to dialing drive circuit (8), a control output end of dialing signal generator (9) links to each other with the input of zero setting device (14), the output of phase-locked loop circuit (4) simultaneously when long-pending the input of device (5) and time-delay trigger (15) join, the output of time-delay trigger (15) sum counter (17) links to each other with the input of monostable trigger (16) simultaneously, the switch terminals that monostable trigger (16) output pulse control signal is given electronic switch (7), another switch terminals of electronic switch (7) links to each other with the control end of take-up switch (2), the output of device (5) and the input of trigger (6) join when long-pending, the output of trigger (6) links to each other with the control end of electronic switch (7) and the input of alarm signal generator (12) simultaneously, the output of alarm signal generator (12) is connected to and amplifies warning circuit (11), the output C of zero setting device (14) links to each other with the offset side of trigger (6) with zero setting end that triggers redialer (10) and dialing drive circuit (8) simultaneously, the output E of zero setting device (13) joins with the zero setting end of time-delay trigger (15) and monostable trigger (16) and the startup trigger end of dialing signal generator (9) simultaneously, exchanges blocking-up DC power supply (3) and provides dc supply for entire circuit.

2, telephone automatic dialing machine as claimed in claim 1 is characterized in that, polarity control circuit (1) is by Polarity Control K switch and diode D ₁To D ₄Form, take-up switch (2) is by triode T ₁To T ₃And resistance R ₄With R ₅Form, exchange blocking-up DC power supply (3) by triode T ₉, voltage-stabiliser tube DW ₂, resistance R ₂₀With R ₂₁And capacitor C ₁₅With C ₁₆Form V _DOutput is by voltage-stabiliser tube DW ₁, diode D ₅, resistance R ₁With R ₂And capacitor C ₁Form V _C1Output is by diode D ₆, resistance R ₃And capacitor C ₂Form V _C2Output, phase-locked loop circuit (4) is by phase-locked loop intergrated circuit IC ₁, potentiometer RW ₁, resistance R ₆With R ₇And capacitor C ₃To C ₆Form, device (5) is by time-base integrated circuit IC when long-pending _2-1, triode T ₅, diode D ₈, potentiometer RW ₃, resistance R ₈To R ₁₀And capacitor C ₇Form, trigger (6) is by d type flip flop IC _3-1And resistance R ₁₁Form, electronic switch (7) is by triode T ₄, diode D ₇With D ₉And resistance R ₁₂With R ₂₈Form, dialing drive circuit (8) is by triode T ₈, potentiometer RW ₂, resistance R ₁₇To R ₁₉And capacitor C ₁₂To C ₁₄Form, dialing signal generator (9) is by communication dialing integrated circuit (IC) ₆, dialed digit dish BHP, quartz crystal XJ, resistance R ₃₄And capacitor C ₂₃With C ₂₄Form, trigger redialer (10) by d type flip flop IC _3-2, triode T ₁₀, voltage-stabiliser tube DW ₃, resistance R ₃₂With R ₃₃And capacitor C ₂₁With C ₂₂Form, amplify warning circuit (11) by loudspeaker SPK, triode T ₆With T ₇, resistance R ₁₃To R ₁₆And capacitor C ₉To C ₁₁Form, alarm signal generator (12) is by music integrated block IC ₅, resistance R ₁₂And capacitor C ₈Form, zero setting device (13) is by triode T ₈With T ₉, diode D ₁₀To D ₁₄, resistance R ₂₉To R ₃₁And capacitor C ₂₀Form, zero setting device (14) is by triode T ₁₁And resistance R ₃₅With R ₃₆Form, time-delay trigger (15) is by d type flip flop IC _4-1, potentiometer RW ₄, resistance R ₂₂To R ₂₄And capacitor C ₁₇Form, monostable trigger (16) is by d type flip flop IC _4-2, resistance R ₂₇And capacitor C ₁₉Form, counter (17) is by time-base integrated circuit IC _2-2, diode D ₁₅, potentiometer RW ₅, resistance R ₂₅With R ₂₆And capacitor C ₁₈Form.