CN2398785Y - Telephon with voice calling automatic discrimination device - Google Patents

Abstract

The utility model relates to a telephone set with voice calling automatic discrimination function. The utility model comprises the telephone set, a preliminary pick-up circuit, a power supply circuit, a voice chip circuit, a voice recording-playback circuit and a power amplification circuit, wherein, the preliminary pick-up circuit is connected with a telephone line; a regularly closed coupled resetting switch K2 of the input terminal of the power supply circuit is connected with the preliminary pick-up circuit; the output terminal of the power supply circuit is connected with the voice chip circuit, the voice recording-playback circuit and the power amplification circuit. The utility model has the advantages of simple circuit structure, reliable working performance, direct voice calling, automatic co machine body discrimination, and flexible and convenient use. The utility model is especially suitable for being used in an occasion when a plurality of people share one telephone set.

Description

Audio call automatic distinguishing telephone set

The utility model relates to a kind of telephone set with audio call automatic distinguishing function, and it especially is fit to the occasion of the shared telephone set of several people uses, and is the further improvement to the existing telephone machine, belongs to the communication apparatus technical field.

In the modern life, phone is the important tool that people carry out information communication and exchange, and telephone set then is an important component part in the whole telephone communication equipment.Along with the development of mechanics of communication, had the telephone set of various functions such as recording, hands-free, wireless, caller identification, the function of telephone set constantly strengthens, and has brought convenience to the user.A kind of telephone set with voice call function is disclosed in Chinese patent CN2268347Y, it is compiled everyone of a shared telephone set one number, form with audio digital signals deposits in the memory of telephone set in advance, when the calling party put through phone and adds the numbering of dialling someone again, telephone set can send audio call sound and come the automatic distinguishing callee.This telephone set has brought certain convenience for the user of the shared phone of several people.But the circuit structure of this telephone set is comparatively complicated, and it is also convenient inadequately to use.

The purpose of this utility model is to provide a kind of structure comparatively simple, easy to use direct audio call automatic distinguishing telephone set.

The technical scheme that realizes the utility model purpose is as follows: include telephone set, pre-circuit for answering, power circuit, sound chip circuit, recording and playing circuit and power amplifier, wherein pre-circuit for answering and telephone line link, the moving reset switch K2 of the frequent seco of the input of power circuit joins with pre-circuit for answering, the output of power circuit and sound chip circuit, recording and playing circuit and power amplifier join, the output of sound chip circuit and the input of the recording and playing circuit machine circuit of answering the call, the output termination power amplifier of recording and playing circuit.

Working mechanism of the present utility model is: the caller dials phone sends 110 volts of ringing-currents to callee's telephone set by switch, its switching circuit closure made the pre-off-hook of telephone set (connection) after pre-circuit for answering detected the tinkle of bells, power circuit is switched on simultaneously, power circuit produces operating voltage remains closed the switching circuit in the pre-circuit for answering, and sound chip circuit is started, by the telephone set handle: the prestored information of " whom you look for " passes to the calling party, the calling party answers and to look for " * * * ", after telephone set network is handled it, by being talked about output port C, D passes to recording and playing circuit to this voice messaging, thereafter export recorded audio signals to power amplifier by its recording earlier, power amplifier is emitted ring tone after this voice amplification is amplified, and repeat playing is called out before the telephone set off-hook, until callee's off-hook, telephone set promptly enters normal operating conditions, and other circuit disconnects simultaneously, quit work, finish the direct audio call automatic distinguishing of the incoming call process of machine individuality altogether.

The utility model compared with prior art, it is simple to have a circuit structure, reliable working performance, voice are directly exhaled, flexible characteristics easy to use is particularly suitable for many people and uses in the occasion of machine altogether, can play the function of a private automatic exchange (PAX).

Fig. 1 is the circuit block diagram of an embodiment of the utility model.

Fig. 2, Fig. 3 are the circuit theory diagrams of an embodiment of the utility model.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing, include telephone set, telephone set network as shown in Figure 2, be common telephone set, K1 is the off-hook switch hook of telephone set end of incoming cables, be provided with a normally closed interlock reset switch K2 in the K1 side, at the normally opened contact two ends of K1 (K1-1, K1-2) cross-over connection has the normally open contact by the relay J 1 of pre-circuit for answering control, normally open contact one end of relay J 1 joins through K2 and power circuit input A, pre-circuit for answering, power circuit, sound chip circuit, recording and playing circuit and power amplifier are as shown in Figure 3, capacitor C 1 in the wherein pre-circuit for answering, C2, resistance R 1, bridge rectifier D1-D4 and voltage-stabiliser tube D5 constitute circuits for triggering, triode Q1 and relay J 1, diode D6 and resistance R 2, R3, R4, the R5 composition switching circuit that joins, two-way synthesizes pre-circuit for answering, its input and telephone wire R, the T port joins, during ring at R, the T end produces 110 volts of ringing-currents, pass through C1, the R1 step-down, the bridge rectifier rectification, C2 filtering, the D5 voltage stabilizing, make the Q1 saturation conduction, relay J 1 is switched on closure, reach pre-off-hook purpose, R9, D8 links to each other with the C6 of power circuit is anodal, makes Q1 continue to keep conducting behind pre-off-hook.Power circuit is made up of R10, C5, C6, IC3, and IC3 is a circuit of three-terminal voltage-stabilizing integrated, and the input port A and the K2 of power circuit join, and C6 exports+5 volts of direct voltages.Sound chip circuit is made up of IC1, C3, and conducting when work is transported to audio signal input port B in the telephone set with the audio signal of " whom you look for " and so on.Transformer T1 in the recording and playing circuit connects C7, R11 and IC4 constitute, C, the D end is incoming call audio frequency signal input, playback is repeated in the voice signal input recording back that it looks for the calling party " * * * ", playback signal input power amplifier, by IC5, C8, C9 and loudspeaker SP form power amplifier, C8 is the input of power amplifier, join with recording and playing circuit, C9 is an output, connect loudspeaker, the voice of recording and playing circuit output are amplified back repeat playing from loudspeaker, realize the function that the automatic speech calling is distinguished, to the phone off-hook, promptly quit work, this moment, telephone set changed the normally state over to, other extension circuit is disconnected, and after callee's on-hook, pre-circuit for answering enters the state of preparation again.The pre-off-hook of phone when avoiding nobody can be at functional select switch K3 of the input port R of pre-circuit for answering serial connection, so as nobody the time each circuit of audio call disconnected.In addition, also a delay switch circuit can be set in the present embodiment, delay switch circuit comprises NE555 chip IC 2 and resistance R 5, R6, R7, R8 and capacitor C 4, the control end of IC2 joins through R8 and triode Q2, connect relay J 2 and D7 in the collector electrode of Q2, the J2 normally-closed contact that delay switch circuit is controlled then is connected in series mutually with the input A of power circuit, the input and the power circuit of delay switch circuit join, delay switch circuit is used for controlling the operating time of the present utility model, when pre-circuit for answering conducting, during entire circuit work, if unmanned off-hook, this machine can shut down after time-delay a period of time automatically, so that telephone set and circuit reset again.

The circuit that the utility model is set up can be set directly in the existing all types of telephone set, also can be arranged on separately outside the telephone set, and linking to each other with telephone set forms.

Claims (8)

1, a kind of audio call automatic distinguishing telephone set, include telephone set, it is characterized in that also comprising pre-circuit for answering, power circuit, sound chip circuit, recording and playing circuit and power amplifier, wherein pre-circuit for answering and telephone line link, the moving reset switch K2 of the frequent seco of the input of power circuit joins with pre-circuit for answering, the output of power circuit and sound chip circuit, recording and playing circuit and power amplifier join, the output of sound chip circuit and the input of the recording and playing circuit machine circuit of answering the call, the output termination power amplifier of recording and playing circuit.

2, by the described audio call automatic distinguishing of claim 1 telephone set, it is characterized in that being provided with a normally closed interlock reset switch K2 in off-hook switch hook K1 side, in the normally opened contact two ends cross-over connection of K1 normally open contact by the relay J 1 of plucking circuit control is in advance arranged, normally open contact one end of J1 joins through K2 and power circuit input.

3, by claim 1 or 2 described audio call automatic distinguishing telephone sets, it is characterized in that C1, C2 in the described pre-circuit for answering, R1, bridge rectifier D1-D4 and D5 constitute circuits for triggering, Q1 and relay J 1 and R2, R3, R4, the R5 composition switching circuit that joins, two-way synthesizes pre-circuit for answering, and its input joins with telephone wire R, T port.

4, by claim 1 or 2 described audio call automatic distinguishing telephone sets, it is characterized in that described power circuit is made up of R10, C5, C6, IC3, IC3 is a circuit of three-terminal voltage-stabilizing integrated, the input port A and the K2 of power circuit join.

5, by claim 1 or 2 described audio call automatic distinguishing telephone sets, it is characterized in that constituting by transformer T1 connection C7, R11 and IC4 in the recording and playing circuit, the C of T1, D end is incoming call audio frequency signal input.

6, by claim 1 or 2 described audio call automatic distinguishing telephone sets, it is characterized in that sound chip circuit is made up of IC1, C3, when conducting is worked the audio signal of " whom you look for " and so on is transported to the audio signal input port B in the telephone set.

7, by claim 1 or 2 described audio call automatic distinguishing telephone sets, it is characterized in that forming power amplifier by IC5, C8, C9 and loudspeaker SP, C8 is the input of power amplifier, and C9 is an output, links with loudspeaker.

8, by claim 1 or 2 described audio call automatic distinguishing telephone sets, it is characterized in that being provided with a delay switch circuit, the input and the power circuit of delay switch circuit join, and the J2 normally-closed contact that delay switch circuit is controlled is connected in series mutually with the input A of power circuit.

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