CN2456401Y

CN2456401Y - Telephone identifier with speech reminder

Info

Publication number: CN2456401Y
Application number: CN 00229618
Authority: CN
Inventors: 盖延亮; 张攀
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-10
Filing date: 2000-04-10
Publication date: 2001-10-24
Anticipated expiration: 2010-04-10

Abstract

The utility model relates to a telephone discriminator with voice prompt, which is composed of a simulation off-hook circuit, a direct current supply circuit, a speech storage circuit, a double audio frequency decoding circuit, a binary-coded decimal system decoding drive and music executive circuit, and a delaying on-hook circuit. The utility model can transmit a plurality of discriminating signals, and thereby, respective telephones can be discriminated by a plurality of people. The utility model not only can be made into an independent device, which causes non-communication professional users to be conveniently connected in parallel with the existing telephones, but also can be arranged in an ordinary telephone, and is taken as a special telephone which can be shared by a plurality of people to carry out production. Then, the utility model can be directly chosen and used by users.

Description

A kind of phone discriminator that has voice suggestion

The utility model relates to a kind of telecommunication terminal attachment device, particularly relates to the shared telephone set of many people.

At present for solving the problem that the shared telephone set of many people is difficult for distinguishing called people, " phone secretary-install the tail password additional " (the electronics Digest that delivers on the relevant publication to phone, 1999.8.23, the third edition), " phone discriminator " (Beijing electronics newspaper, 1998.3.26, the 12nd phase) etc. article has proposed solution separately.But these solutions have the following disadvantages: with regard to " phone secretary ", this breadboardin off-hook part of one and on-hook part all adopt direct current relay to make executive component, and working power is all taken from telephone line, because relay coil has power consumption, internal resistance is less, can cause line drop excessive; Its two, this circuit complete machine each several part working power is all taken from telephone line, and is limited because of the telephone line gross output, can make the each several part operating voltage on the low side, the musical sound insufficient strength; Its three this device is to realize that must be reequiped by the professional and technical personnel, general non-telecommunications technician then can not realize, is not easy to popularize under the prerequisite that the substation internal wiring is done to change.With regard to " phone discriminator ", this circuit of one can only be discerned one group of password, is not suitable for the occasion of the shared phone of many people; Its two voice operating prompt facility that does not possess the calling party; They are three years old, it adopts two LM567 frequency phase lock loop circuits to come the demodulation double-audio signal, the key of this circuit be to do accurate the adjustment to the value of resonance R, C could adjustment double-audio signal respective frequencies, and actual R, C element are bigger because of manufacturing process and ambient temperature and humidity influence parameter distribution.Like this, both reduce the reliability and stability of this circuit working, increased artificial adjustment operation again, be not suitable for industrial automation production.

The purpose of this utility model provides a kind ofly can export a plurality of different signals, the phone discriminator that has voice suggestion that is suitable for the shared telephone set of many people again easy for installation.

The purpose of this utility model is achieved in that having five circuits constitutes: simulation off-hook and DC power-supply circuit, voice memory circuit, double-tone frequency decoding circuit, binary coded decimal decoding driving and music executive circuit, time-delay on-hook circuit.

Simulation off-hook and DC power-supply circuit are by capacitor C ₁, C ₂, diode D ₁～D ₆, power supply E, three-terminal voltage-stabilizing ic chip ₁₃, photoelectrical coupler IC ₁₄, relay normally-closed contact JK, telephone wire L _A, L _B, resistance R ₁, R ₂, normally closed button S _A, unidirectional controllable silicon S CR, potentiometer W ₁Form Deng element.Telephone wire L wherein _A, L _BThe outside line of answering the call, diode D ₁～D ₄Form polarity identification circuit, the three-terminal voltage-stabilizing ic chip ₁₃Provide stable DC working power E to whole system.Capacitor C ₁, diode D ₅, resistance R ₁With photoelectrical coupler IC ₁₄After pin 1,2 is in series, be connected to telephone wire L _A, L _BOn, form stopping direct current and cross ac circuit.Its operation principle is when exchanging ringing signal from telephone wire L _A, L _BDuring input, through photoelectrical coupler IC ₁₄Photoelectricity is isolated capacitor C ₂Charging is when charging voltage rises to diode D ₆During puncture voltage, unidirectional controllable silicon S CR conducting and self-locking are because load resistance R ₂Resistance is less, makes circuit be in false off-hook; When the interchange ringing signal came, this electric current was through capacitor C ₁Every directly, diode D ₅Rectification, resistance R ₁After the current limliting, make photoelectrical coupler IC ₁₄Pin 1,2 conductings, thus make photoelectrical coupler IC ₁₄Work.Simultaneously, power supply E powers to subsequent conditioning circuit through unidirectional controllable silicon S CR, normally closed button S _AThe back drop that breaks when being used to converse, relay normally-closed contact JK is used to a period of time of delaying time, the automatic hand-up during ring unanswered.Vccout is the three-terminal voltage-stabilizing ic chip ₁₃The stable dc power supply positive pole of pin 3 outputs.

The voice memory circuit is by triode BG ₁, capacitor C ₃～C ₁₃, recording playback sound change over switch K, record indicator LED, microphone MIC, resistance R ₃～R ₁₁, the speech recording and reproducing integrated circuit (IC) ₁, etc. element form.Capacitor C ₃Normally closed playback PLA with recording playback sound change over switch K holds and the speech recording and reproducing integrated circuit (IC) respectively ₁Pin 24 links to each other, and can produce a low level pulse and be added in the speech recording and reproducing integrated circuit (IC) after circuit powers up ₁Pin 24 ends make the speech recording and reproducing integrated circuit (IC) ₁Work once.Capacitor C ₄Be attempted by resistance R ₄Two ends make the speech recording and reproducing integrated circuit (IC) ₁The unlikely generation of sequential chaotic.Positive source V _CCRespectively with pull-up resistor R ₄, R ₅, R ₆Connect capacitor C ₅, C ₆Be filter capacitor, be connected to the three-terminal voltage-stabilizing ic chip ₁₃Between pin 3 and the ground, in order to prevent noise jamming.Capacitor C ₇Be connected in the speech recording and reproducing integrated circuit (IC) ₁₅And between the ground.Capacitor C ₈With resistance R ₇Connect the speech recording and reproducing integrated circuit (IC) after the series connection ₁Pin 20,21 is as the coupling of internal audio frequency signal.Capacitor C ₉With resistance R ₈Meet speech recording and reproducing integrated circuit lC after the parallel connection ₁Between pin 15 and the ground, play the automatic gain effect.Capacitor C ₁₀Connect the speech recording and reproducing integrated circuit (IC) ₁ Pin 14 and triode BG ₁Base stage is coupled to triode BG with voice signal ₁Amplify.Capacitor C ₁₁With resistance R ₉, R ₁₀Constitute the T mode filter, provide stable bias voltage to microphone MIC.Capacitor C ₁₂One termination microphone MIC, the other end is connected to the speech recording and reproducing integrated circuit (IC) ₁Pin 17 is input coupling electric capacity.Capacitor C ₁₃Be connected to the speech recording and reproducing integrated circuit (IC) ₁Between pin 18 and the ground, play the input offset effect.Recording playback sound change over switch K dials when normally using to normally closed playback PLA end; During recording, dial and hold to REC.Record indicator LED is through resistance R ₃Connect the speech recording and reproducing integrated circuit (IC) ₁Pin 25.The information of pre-recording is through microphone MIC, capacitor C ₁₃, C ₁₂From speech recording and reproducing integrated circuit lC ₁Pin 18,17 input.During playback, signal is by speech recording and reproducing integrated circuit lC ₁Pin 14 outputs are through triode BG ₁, R ₁₁The feed-in outside line.

Double-tone frequency decoding circuit is by capacitor C ₁₄～C ₁₆, resistance R ₁₂～R ₁₄, double-tone decoder ic IC frequently ₂, element such as crystal oscillator JT forms, C wherein ₁₆It is decoupling capacitance.Resistance R ₁₃, R ₁₄, R ₁₅Meet double-tone decoder ic IC frequently respectively ₂Pin 2,3, pin 16,17, pin 17,18, double-tone is decoder ic IC frequently ₂Pin 7,8 meets crystal oscillator JT.Its operation principle is that double-audio signal that outside line sent is through capacitor C ₁₄, resistance R ₁₂The input double-tone is decoder ic IC frequently ₂Pin 2, the tetrad sign indicating number is by double-tone frequency decoder ic IC ₂Pin 11～14 output.

Binary coded decimal decoding driving and music executive circuit are by triode BG ₂, capacitor C ₁₇～C ₂₄, the CMOS integrated circuit (IC) ₃, music integrated circuit IC ₄～C ₁₁, element such as loud speaker SP forms.Music integrated circuit IC ₄～IC ₁₁In stored different information, its wiring is identical.Pin 1 meets power supply E, pin 4 ground connection, and pin 2 connects the CMOS integrated circuit (IC) respectively ₃ Pin 5,9,4,7,1,15,2,14, pin 3 is respectively through coupling capacitance C ₁₇～C ₂₄Meet triode BG ₂Base stage, triode BG ₂Grounded emitter, loud speaker SP is connected to Vcc and triode BG ₂Between the collector electrode.Its operation principle is the tetrad sign indicating number, by the CMOS integrated circuit (IC) ₃

10,11,12,13 input, after deciphering by the CMOS integrated circuit (IC) ₃ Pin 1,2,4,5,7,9,14,15 output decimal system information, as music integrated circuit IC ₄～IC ₁₁The work triggering signal, when input tetrad information, corresponding decimal system output is just exported high level and is triggered corresponding music integrated circuit lC ₄～R ₁₁Work is through capacitor C ₁₇～C ₂₄One of them is coupled to triode BG ₂Amplify the back and send the musical sound of setting by loud speaker SP.

Time-delay on-hook circuit is by triode BG ₃, resistance C ₂₅～C ₂₇, diode D ₇, 555 time-base integrated circuit IC ₁₂, relay J, resistance R ₁₅～R ₁₇, variable resistor W ₂Form Deng element.R ₁₇Be current-limiting resistance, resistance C ₂₆Be connected to resistance C ₁₇Two ends.After its operation principle was power on circuitry, power supply was through variable resistor W ₂, resistance R ₁₅Give capacitor C ₂₅Charging, through behind the certain hour, capacitor C ₂₅Terminal voltage rises to 555 time-base integrated circuit IC ₁₂During conducting voltage, 555 time-base integrated circuit IC ₁₂Pin 3 output high level are through resistance R ₁₆Make triode BG after the current limliting ₃Saturation conduction, relay J work, contact JK commonly used disconnects, and causes the phone automatic hand-up.Diode D ₇Form discharge loop with the coil of relay J, prevent the interference of self-induced e.m.f in the relay J, resistance R ₁₇Be in the maintenance pick-up voltage after making the relay J conducting, can be energy-conservation.Capacitor C ₂₇Be connected to resistance R ₁₇Two ends, effect are in transistor turns moment it to be charged, and can guarantee to flow through in the relay J sufficient electric current, reliable adhesive.Variable resistor W ₂Be used for regulating delay time.

The utility model can have two kinds of occupation modes: the first substitutes existing telephone power ringing circuit with circuit of the present utility model, for exempting musical sound conversation is disturbed, can be normally closed button S _ABe designed to normally closed stage clip contact, like this with regard to can be used as a kind of novel many people totally one one exclusive telephone produce.It two considers that society goes up existing many people reality of totally one ordinary telephone set, also can be with the utility model as an independent device production, and the time spent is connected to it on ordinary telephone set end line, can use easily

The utility model has the advantages that: in the simulation circuit for answering, one-way SCR with cheapness replaces the employed relay of traditional design, but self-locking and self almost do not have this character of power consumption after having utilized the logical direct current of controllable silicon to trigger, not only avoided the internal resistance and the power consumption of relay not to meet post and telecommunications equipment networking standard, and contactless on-off mode has improved the reliability of circuit.Have the sound prompt function that the user can set up on their own, this just makes the unlikely generation operating barrier of calling party.Two-stage decoding is arranged, except that having the DTM decoding function, also have the binary-coded decimal decoding circuit, thereby exportable a plurality of discernible signal can be adapted to the occasion of the shared telephone set of many people.Utilized the resistance R in the circuit dexterously ₂Do load, can realize false off-hook.Can make an independent device and be connected on the telephone set end line and get final product, need not to change the telephone set internal wiring, thereby be more suitable in general non-communication speciality personnel user.

Fig. 1 is the utility model circuit diagram.

The utility model is described in further detail below in conjunction with drawings and Examples:

Simulation off-hook and DC power-supply circuit are by capacitor C ₁, C ₂, diode D ₁～D ₆, power supply E, three-terminal voltage-stabilizing ic chip ₁₃, photoelectrical coupler IC ₁₄, relay normally-closed contact JK, telephone wire L _A, L _B, resistance R ₁, R ₂, normally closed button S _A, unidirectional controllable silicon S CR, potentiometer W ₁Form Deng element.Telephone wire L wherein _A, L _BThe outside line of answering the call, diode D ₁～D ₄Form polarity identification circuit, the three-terminal voltage-stabilizing ic chip ₁₃Provide stable DC working power E to whole system.Capacitor C ₁, diode D ₅, resistance R ₁With photoelectrical coupler IC ₁₄After pin 1,2 is in series, be connected to telephone wire L _A, L _BOn, form stopping direct current and cross ac circuit.Vccout is the three-terminal voltage-stabilizing ic chip ₁₃Pin 3 output stable DC positive polarity.

The voice memory circuit is by triode BG ₁, capacitor C ₃～C ₁₃, recording playback sound change over switch K, record indicator LED, microphone MIC, resistance R ₃～R ₁₁, the speech recording and reproducing integrated circuit (IC) ₁, etc. element form.Capacitor C ₃Normally closed playback PLA with recording playback sound change over switch K holds and the speech recording and reproducing integrated circuit (IC) respectively ₁Pin 24 links to each other capacitor C ₄Be attempted by resistance R ₄Two ends, V _CCRespectively with pull-up resistor R ₄, R ₅, R ₆Connect capacitor C ₅, C ₆Be filter capacitor, be connected to the three-terminal voltage-stabilizing ic chip ₁₃Between pin 3 and the ground.Capacitor C ₇Be connected in the speech recording and reproducing integrated circuit (IC) ₁₅And between the ground.Capacitor C ₈With resistance R ₇Meet speech recording and reproducing integrated circuit lC after the series connection ₁Pin 20,21.Capacitor C ₉With resistance R ₈Connect the speech recording and reproducing integrated circuit (IC) after the parallel connection ₁Between pin 1 and the ground.Capacitor C ₁₀Connect the speech recording and reproducing integrated circuit (IC) ₁ Pin 14 and triode BG ₁Base stage.Capacitor C ₁₁With resistance R ₉, R ₁₀Constitute the T mode filter, provide stable bias voltage to microphone MIC.Capacitor C ₁₂One termination microphone MIC, the other end is connected to the speech recording and reproducing integrated circuit (IC) ₁Pin 17 is the input coupling capacitance.Capacitor C ₁₃Be connected to the speech recording and reproducing integrated circuit (IC) ₁Between pin 18 and the ground.Record indicator LED is through resistance R ₃Meet speech recording and reproducing integrated circuit lC ₁Pin 25.

Double-tone frequency decoding circuit is by capacitor C ₁₄～C ₁₆, resistance R ₁₂～R ₁₄, double-tone decoder ic IC frequently ₂, element such as crystal oscillator JT forms, C wherein ₁₆Be to move back even electric capacity.Resistance R ₁₃, R ₁₄, R ₁₅Meet double-tone decoder ic 1C frequently respectively ₂Pin 2,3, pin 16,17, pin 17,18, double-tone is decoder ic IC frequently ₂Pin 7,8 meets crystal oscillator JT.The double-audio signal that outside line sent is through capacitor C ₁₄, resistance R ₁₂The input double-tone is decoder ic IC frequently ₂Pin 2, the tetrad sign indicating number is by double-tone frequency decoder ic IC ₂Pin 11～14 output.

Binary coded decimal decoding driving and music executive circuit are by triode BG ₂, capacitor C ₁₇～C ₂₄, CMOS integrated circuit lC ₃, music integrated circuit IC ₄～IC ₁₁, element such as loud speaker SP forms.Music integrated circuit IC ₄～IC ₁₁Wiring identical.Pin 1 meets power supply E, pin 4 ground connection, and pin 2 connects the CMOS integrated circuit (IC) respectively ₃ Pin 5,9,4,7,1,15,2,14, pin 3 is respectively through coupling capacitance C ₁₇～C ₂₄Meet triode BG ₂Base stage, triode BG ₂Grounded emitter, loud speaker SP is connected to V _CCWith triode BG ₂Between the collector electrode.The tetrad sign indicating number is by the CMOS integrated circuit (IC) ₃

10,11,12,13 input, after deciphering by the CMOS integrated circuit (IC) ₃ Pin 1,2,4,5,7,9,14,15 output decimal system information, trigger corresponding music integrated circuit IC ₄～IC ₁₁Work is through capacitor C ₁₇～C ₂₄One of them is coupled to triode BG ₂Amplify the back and send the musical sound of setting by loud speaker SP.

Time-delay on-hook circuit is by triode BG ₃, resistance C ₂₅～C ₂₇, diode D ₇, 555 time-base integrated circuit IC ₁₂, relay J, resistance R ₁₅～R ₁₇, variable resistor W ₂Form Deng element.R ₁₇Be current-limiting resistance, resistance C ₂₆Be connected to resistance C ₁₇Two ends.Diode D ₇Form discharge loop, capacitor C with the coil of relay J ₂₇Be connected to resistance R ₁₇Two ends.

Claims

1, a kind of phone discriminator that has voice suggestion comprises simulation off-hook and DC power-supply circuit, double-tone decoding circuit, time-delay on-hook circuit frequently, it is characterized in that: comprise that also binary-coded decimal decoding drives and carry out music circuit, voice memory circuit; Binary-coded decimal decoding drives and carries out the input CMOS integrated circuit (IC) of music circuit ₃Pin 10,11,12,13 and double-tone decoder ic IC frequently ₂Pin 11～14 link to each other output termination loud speaker SP; The output of voice memory circuit is through triode BG ₁, R ₁₁The outside line of feed-in after polarity identification; Double-tone is the input end capacitor C of decoding circuit frequently ₁₄Also link to each other with outside line after polarity identification; Being connected between the negative pole of unidirectional controllable silicon S CR negative electrode and power supply E of time-delay on-hook circuit at normally-closed contact JK; The positive pole output Vccout of simulation off-hook and DC power-supply circuit respectively with the positive source V of above-mentioned each circuit _CCLink to each other.

2, the phone discriminator that has voice suggestion according to claim 1 is characterized in that binary-coded decimal decoding drives and carry out music circuit by triode BG ₂, capacitor C ₁₇～C ₂₄, the CMOS integrated circuit (IC) ₃, music integrated circuit lC ₄～IC ₁₁, element such as loud speaker SP forms.Music integrated circuit IC ₄～IC ₁₁Wiring identical.Pin 1 meets power supply E, pin 4 ground connection, and pin 2 connects the CMOS integrated circuit (IC) respectively ₃Pin 5,9,4,7,1,15,2,14, pin 3 is respectively through coupling capacitance C ₁₇～C ₂₄Meet triode BG ₂Base stage, triode BG ₂Grounded emitter, loud speaker SP is connected to V _CCWith triode BG ₂Between the collector electrode.

3, the phone discriminator that has voice suggestion according to claim 1 and 2 is characterized in that voice store electricity routing voice memory circuit is by triode BG ₁, capacitor C ₃～C ₁₃, recording playback sound change over switch K, record indicator LED, microphone MIC, resistance R ₃～R ₁₁, the speech recording and reproducing integrated circuit (IC) ₁, etc. element form.Capacitor C ₃Normally closed playback PLA with recording playback sound change over switch K holds and the speech recording and reproducing integrated circuit (IC) respectively ₁Pin 24 links to each other capacitor C ₄Be attempted by resistance R ₄Two ends, Vcc respectively with pull-up resistor R ₄, R ₅, R ₆Connect capacitor C ₅, C ₆Be filter capacitor, be connected to the three-terminal voltage-stabilizing ic chip ₁₃Between pin 3 and the ground.Capacitor C ₇Be connected in the speech recording and reproducing integrated circuit (IC) ₁₅And between the ground.Capacitor C ₈With resistance R ₇Connect the speech recording and reproducing integrated circuit (IC) after the series connection ₁Pin 20,21.Capacitor C ₉With resistance R ₈Connect the speech recording and reproducing integrated circuit (IC) after the parallel connection ₁Between pin 1 and the ground.Capacitor C ₁₀Connect the speech recording and reproducing integrated circuit (IC) ₁Pin 14 and triode BG ₁Base stage.Capacitor C ₁₁With resistance R ₉, R ₁₀Constitute the T mode filter.Capacitor C ₁₂One termination microphone MIC, the other end is connected to the speech recording and reproducing integrated circuit (IC) ₁Pin 17 is the input coupling capacitance.Capacitor C ₁₃Be connected to the speech recording and reproducing integrated circuit (IC) ₁Between pin 18 and the ground.Record indicator LED is through resistance R ₃Connect the speech recording and reproducing integrated circuit (IC) ₁Pin 25.

4. the phone discriminator that has voice suggestion according to claim 1 and 2, it is characterized in that double-tone frequently decoding circuit by double-tone frequently decoding circuit by capacitor C ₁₄～C ₁₆, resistance R ₁₂～R ₁₄, double-tone decoder ic IC frequently ₂, element such as crystal oscillator JT forms, C wherein ₁₆It is decoupling capacitance.Resistance R ₁₃, R ₁₄, R ₁₅Meet double-tone decoder ic IC frequently respectively ₂Pin 2,3, pin 16,17, pin 17,18, double-tone is decoder ic IC frequently ₂Pin 7,8 meets crystal oscillator JT.The double-audio signal that outside line sent is through capacitor C ₁₄, resistance R ₁₂The input double-tone is decoder ic IC frequently ₂Pin 2, the tetrad sign indicating number is by double-tone frequency decoder ic IC ₂Pin 11～14 output.

5. the phone discriminator that has voice suggestion according to claim 1 and 2 is characterized in that simulating off-hook and DC power-supply circuit simulation off-hook and DC power-supply circuit by capacitor C ₁, C ₂, diode D ₁～D ₆, power supply E, three-terminal voltage-stabilizing ic chip ₁₃, photoelectrical coupler IC ₁₄, relay normally-closed contact JK, telephone wire L _A, L _B, resistance R ₁, R ₂, normally closed button S _A, unidirectional controllable silicon S CR, potentiometer W ₁Form Deng element.Telephone wire L wherein _A, L _BThe outside line of answering the call, diode D ₁～D ₄Form polarity identification circuit, the three-terminal voltage-stabilizing ic chip ₁₃Provide stable DC working power E to whole system.Capacitor C ₁, diode D ₅, resistance R ₁With photoelectrical coupler IC ₁₄After pin 1,2 is in series, be connected to telephone wire L _A, L _BOn, form stopping direct current and cross ac circuit.Vccout is the three-terminal voltage-stabilizing ic chip ₁₃The stable dc power supply positive pole of pin 3 outputs.

6. the phone discriminator that has voice suggestion according to claim 1 and 2, the on-hook circuit that it is characterized in that delaying time by time-delay on-hook circuit by triode BG ₃, resistance C ₂₅～C ₂₇, diode D ₇, 555 time-base integrated circuit lC ₁₂, relay J, resistance R ₁₅～R ₁₇, variable resistor W ₂Form Deng element.R ₁₇Be current-limiting resistance, resistance C ₂₆Be connected to resistance C ₁₇Two ends.Diode D ₇Form discharge loop with the coil of relay J.Capacitor C ₂₇Be connected to resistance R ₁₇Two ends.