CN2393278Y - Management device for telephone set - Google Patents

Abstract

The utility model relates to a management device for a telephone, which comprises a straight through switching circuit, a double audio frequency generation and linear amplification circuit, a control circuit and a telephone port, wherein, after the straight through switching circuit and the telephone port are connected in series, the straight through switching circuit and the double audio frequency generation and linear amplification circuit are connected in parallel. Then, the straight through switching circuit and the control circuit are connected in series in a power supply input circuit. The utility model is characterized in that a constant current circuit is connected in series with a branch of the telephone port, and both ends of the branch of the series connection of the constant current circuit and the telephone port are connected in parallel with an alternate current bypass. Only one dialing is needed through the management device for a telephone, and the existing dialing can be blocked. The dialing time is short, and the telephone dialing is convenient and simple.

Description

Telephone supervisor

The utility model relates to a kind of telephone terminal, especially a kind of Type of Dialing Supervisor.

Existing common dialer, for example Chinese utility model patent 94203760.x disclosed " telephone automatic dialing unit ", wherein the circuit of section dialing in is formed complexity, and need add keyboard, secondly also need adopt storage battery power supply, therefore, uses inconvenience.Recently two types management type dialer occurred on the market, a series products does not intercept all dialing of telephone set or partial dial yet, therefore, when using telecommunications card to call, needs two-stage dialing could connect phone, and required dialing time is long; Another kind of all dialing intercept to telephone set, but because its single loop that adopts telephone set, dialer and switch to connect successively makes governor circuit can only finish simple function simultaneously, also cause the dialing time lengthening; And because the single loop that above two series products all adopt unitary series of operations to connect, making it can not provide information of voice prompt such as music wait or ring-back tone for telephone set when dialling automatically or receive dialing, do not meet the making call mode of people's custom.

The purpose of this utility model is: a kind of one-stage dialing that only needs is provided, can intercepts existing dialing, dialing time is short, and calls convenient and simple telephone supervisor.

The technical scheme that realizes the utility model purpose is: a kind of telephone supervisor includes generation frequently of through swtich circuit, double-tone and linear amplifier circuit, control circuit and telephone set port; Through swtich circuit and telephone set port are connected in series the back and double-tone produces frequently and the linear amplifier circuit parallel connection, then be serially connected in the power supply input circuit with control circuit, it is characterized in that: on telephone set port branch road, also be connected in series constant-current circuit, also be parallel with the branch road two ends of telephone set port serial connection at constant-current circuit and exchange bypass.

Another purpose of the present utility model is: when utilizing this telephone supervisor to receive phone, can provide the bell signal prompting for telephone set; When dialling, can provide information of voice prompt such as ring-back tone or music wait for telephone set.

The technical scheme that realizes another purpose of the utility model is: this telephone supervisor also has polarity protection and the ring control circuit that is serially connected in the power supply input circuit, and circuit waited in the voice that are connected between control circuit and the telephone set port.

Good effect of the present utility model is: 1, owing to be provided with constant-current circuit and exchange bypass in the telephone set loop, the audible communication signal that the telephone set dialing produces is isolated by two parts circuit, make the audible communication signal can't directly deliver to switch, and the Be Controlled circuit receives, directly finish forwarding by control circuit, need not to carry out dialing the second time, thereby it is short to reach dialing time, and call purpose easily, and telephone expenses have been saved.2, owing to be provided with polarity protection and ringing circuit in the telephone set loop, when bell signal arrived, polarity protection and ringing circuit were connected, and made telephone set produce the tinkle of bells, for telephone set provides the bell signal prompting.3, wait for circuit owing in the telephone set loop, be provided with voice, when calling, send corresponding signal by control circuit, make voice wait for circuit working, thereby provide information of voice prompt such as ring-back tone or music wait for telephone set, make the user be in wait state, met common making call mode.

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

Fig. 1 is a circuit block diagram of the present utility model.

Fig. 2 is embodiment 1 electrical schematic diagram of the present utility model.

Fig. 3 is embodiment 2 electrical schematic diagrams of the present utility model.

Fig. 4 is second kind of line map of the utility model embodiment constant-current circuit 5.

Fig. 5 is the third line map of the utility model embodiment constant-current circuit 5.

Fig. 6 is second kind of line map that the utility model embodiment exchanges bypass 6.

Fig. 7 is the third line map that the utility model embodiment exchanges bypass 6.

Fig. 8 is the another kind of line map of the utility model embodiment 2 polarity protections and ring control circuit 7.

As shown in Figure 1: the utlity model has: through swtich circuit 1, double-tone produce frequently and linear amplifier circuit 2, control circuit 3, telephone set port 4, constant-current circuit 5, interchange bypass 6, polarity protection and ring control circuit 7 and voice wait circuit 8 compositions.Power supply input signal of the present utility model comes from switch, and promptly its two-port a, b connect the switch output line.

As shown in Figure 2, the through swtich circuit 1 among the utility model embodiment 1 mainly is made of triode T1, T9, plays on-off action; Double-tone produces frequently and linear amplifier circuit 2 mainly is made of integrated circuit (IC) 1 and triode T2, produces double-audio signal by this circuit, and amplifies; Control circuit 3 mainly is made up of power circuit 31, single-chip microcomputer IC4 and integrated circuit (IC) 2, IC3, the reception of telephone set signal and transmission are by control circuit 3 controls, the concrete structure and the annexation of these several partial circuits are seen Fig. 2, wherein the model of IC1, IC2, IC3 is respectively HT9200A, 24C02, MT8870, the model of single-chip microcomputer IC4 is AT89C2051 or 97C2051.The constant-current circuit 5 of this embodiment characteristic is the controllable type constant-current circuit that mainly is made of triode T3, impedance Z 19, capacitor C 15 of controlled circuit 3 controls, and exchanging bypass 6 is the controllable type that mainly is made of optocoupler 01, triode T5 and capacitor C 14, the coupling alternating current circuit of controlled circuit 3 controls.Present embodiment utilizes constant-current circuit 5 and exchanges 6 pairs of telephone set dialing of bypass isolates, so that switch dials and can not discern telephone set, can only send corresponding signal by control circuit 3 makes institute dial the number and send, thereby reach existing dialing is intercepted, and the short purpose of dialing time.More than several partial circuits constituted the main circuit of present embodiment, its concrete operation principle is as follows: when the telephone set off-hook, circuit is by T1, T6 and phone constitute the loop, provide operating voltage to single-chip microcomputer simultaneously, make the main circuit operate as normal, when phone is called, send single-chip microcomputer IC4 after the decoded device IC3 decoding of double-audio signal, single-chip microcomputer IC4 starts by T3, impedance Z 19, the constant-current circuit 5 that capacitor C 15 constitutes, the dialogue machine dialing intercepts, start simultaneously by C14, optocoupler 01, triode T5 and capacitor C 14 constitutes exchanges bypass 6, dialogue machine dialing carrying out bypass, so that switch can not be discerned dialing, single-chip microcomputer dialogue machine dialing is simultaneously differentiated, whether need to start the phonecard dialing with the dialing of determining you, dial as the dispense with telephone card, then double-tone is produced frequently and forwarding is finished in linear amplifier circuit 2 dialogue machines dialing by control circuit 3, dial by phonecard as needs, then control circuit 3 turn-offs T1 by triode T9, and produce frequently and linear amplifier circuit 2 is finished phonecard dialing by double-tone, impedance Z 19 in the above constant-current circuit 5 can be a pure resistance, also can be pure inductance.The constant-current circuit 5 of this embodiment also can adopt circuit shown in Figure 4, and this constant-current circuit 5 is controlled circuit 3 controls, the main controllable type constant-current circuit that is made of triode T3, impedance Z 19 and voltage-stabiliser tube Z5.The constant-current circuit 5 of this embodiment can also adopt circuit shown in Figure 5, and this constant-current circuit 5 is controlled circuit 3 controls, the main controllable type constant-current circuit that is made of constant current tube Is; Interchange bypass 6 among this embodiment also can be adopted circuit shown in Figure 6, this interchange bypass 7 is the controllable type coupling alternating current circuits that are made of triode T15, relay J 3, capacitor C 20, triode T15 is controlled by control circuit 3, output relay termination J3, relay J 3 normally opened contacts and capacitor C 20 series connection; Interchange bypass 6 among this embodiment can also be adopted circuit shown in Figure 7, and the basic structure of this circuit is similar with Fig. 6, and different is: substitute capacitor C 20 with voltage-stabiliser tube Z6.

In embodiment 1, also be provided with polarity protection and ring control circuit 7 and the voice wait circuit 8 of string in the power supply input circuit; this polarity protection and ring control circuit 7 are mainly by four bridge heap B1; B2; B3; B4 and optocoupler 02; 03; 04 and triode T13; T14 constitutes; B3 wherein; B4 is serially connected in the telephone set loop; B1 is serially connected in the power supply input circuit; B2 is attempted by input signal port ab two ends; optocoupler 02 is serially connected in the telephone set loop; optocoupler 03; 04 is serially connected in the output loop of bridge heap B2; optocoupler 03 links to each other with B4 by T13, and optocoupler 04 links to each other with B3 by T14.Voice wait for that circuit 8 is connected between control circuit 3 and the telephone set port 4, it mainly is made up of voice integrated chip T12, the model of T12 is H66T, the operation principle of this two parts circuit is as follows: when the bell signal that provides when switch arrives, this bell signal is by capacitor C 10, resistance R 11 is extracted by bridge vertebra B12, the output that B2 produces makes optocoupler 03,04 conducting, and pass through triode T13 respectively, the amplification of T14, give bridge vertebra B4 amplifying signal respectively, B3, connect bridge vertebra B4, two pairs of angle points of B3, make B4, B3 plays nonpolarity on-off action, and connects the bell signal loop, makes telephone set send bell signal, thereby reach when receiving phone, this manager can provide the purpose of bell signal prompting for telephone set, and 02 pair of bell signal of the optocoupler in the circuit intercepts, and has prevented the short circuit of bell signal.During off-hook, audio carrier signal makes the triode in the entire circuit all obtain forward voltage by the full-wave rectification of bridge heap B1, has guaranteed the reliable conducting of triode, and signal is connected, so B1 has played the polarity protection effect.This embodiment waits for circuit 8 owing to be provided with voice, when therefore calling, determining the phone dialing when control circuit 3 finishes, and double-tone produces frequently and the forwarding of linear amplifier circuit 2 imperfect tense, then control circuit 3 starts voice and waits for circuit 8, voice integrated chip T12 work, make phone be in holding state, thereby reached the utility model when dialling, the purpose of information of voice prompt such as ring-back tone or music wait can be provided for phone, met the making call mode of people's custom.

As shown in Figure 3, the main circuit schematic diagram of embodiment 2 is similar with embodiment 1, different is polarity protection and and ring control circuit 7 mainly constitute by the relay J 1 of carrying out the internal circuit polarity protection, controllable silicon S1, voltage-stabiliser tube Z4; Relay J 1 coil and controllable silicon S1 series connection, controllable silicon S1 trigger voltage adds by voltage-stabiliser tube Z4, J1 contact J1-A, J1-B is serially connected in the power supply input circuit.The operation principle of main circuit is the same; the operation principle of polarity protection and ring control circuit 7 is as follows: when the bell signal that provides when switch arrives; this signal can be added on the telephone set by diode D2 or capacitor C 16, J1-B; form the loop with J1-A; telephone set sends bell signal; thereby reach when receiving phone, this telephone supervisor can provide the purpose of bell signal prompting for telephone set.During off-hook; positive termination a when input signal; when negative terminal meets b; relay J 1 coil is by the D2 short circuit; can not get; J1-A; J1-B all also maintains the original state constant, and triode is in the forward conduction state in the circuit, and circuit is unimpeded; and as negative input signal termination a; during positive termination b, capacitor C 16 chargings, voltage-stabiliser tube Z4 conducting; controllable silicon S1 is triggered; relay J 1 coil gets electric, J1-A; J1-B all connects another contact, from and the main circuit forward is got; guaranteed the unimpeded of circuit, so relay J 1 has played the effect of internal circuit being carried out polarity protection.This polarity protection and ring control circuit (7) also can adopt circuit shown in Figure 8; it mainly is made of the relay J 2 of carrying out the internal circuit polarity protection; relay contact J2-A, J2-B are serially connected in the power supply input circuit; this circuit directly carries out the internal circuit polarity protection by relay, and concrete operation principle is the same.

Claims (10)

1, a kind of telephone supervisor includes through swtich circuit (1), double-tone produces frequently and linear amplifier circuit (2), control circuit (3) and telephone set port (4); Through swtich circuit (1) and telephone set port (4) are connected in series the back and double-tone produces frequently and linear amplifier circuit (2) parallel connection, then and control circuit (3) be serially connected in the power supply input circuit, it is characterized in that: on telephone set port (4) branch road, also be connected in series constant-current circuit (5), also be parallel with the branch road two ends of telephone set port (4) serial connection at constant-current circuit (5) and exchange bypass (6).

2, telephone supervisor according to claim 1 is characterized in that: constant-current circuit (5) is the controllable type constant-current circuit that mainly is made of triode T3, impedance Z 19, capacitor C 15 or voltage-stabiliser tube Z5 of controlled circuit (3) control.

3, telephone supervisor according to claim 1 is characterized in that: constant-current circuit (5) is controlled circuit (3) control, the main controllable type constant-current circuit that is made of constant current tube Is.

4, telephone supervisor according to claim 1 is characterized in that: exchanging bypass (6) is the controllable type that mainly is made of optocoupler 01, triode T5 and capacitor C 14, the coupling alternating current circuit of controlled circuit (3) control.

5, telephone supervisor according to claim 1, it is characterized in that: exchanging bypass (6) is controlled circuit (3) control, the controllable type that mainly is made of triode T15, relay J 3, capacitor C 20 or voltage-stabiliser tube Z6, coupling alternating current circuit, triode T15 is controlled by control circuit (3), its output relay termination J3, relay J 3 normally opened contacts and capacitor C 20 or voltage-stabiliser tube Z6 series connection.

6, according to the arbitrary telephone supervisor described in the claim 1 to 5, it is characterized in that: also have the polarity protection and the ring control circuit (7) that are serially connected in the power supply input circuit.

7, telephone supervisor according to claim 6, it is characterized in that: polarity protection and ring control circuit (7) mainly are made of four bridge heap B1, B2, B3, B4 and optocouplers 02,03,04 and triode T13, T14, wherein B3, B4 are serially connected in the telephone set loop, B1 is serially connected in the power supply input circuit, B2 is attempted by input signal port ab two ends, optocoupler 02 is serially connected in the telephone set loop, and optocoupler 03,04 is serially connected in the output loop of bridge heap B2; Optocoupler 03 links to each other with B4 by T13, and optocoupler 04 links to each other with B3 by T14.

8, telephone supervisor according to claim 6 is characterized in that: polarity protection and ring control circuit (7) mainly are made of the relay J 1 of carrying out the internal circuit polarity protection, controllable silicon S1, voltage-stabiliser tube Z4; Relay J 1 coil and controllable silicon S1 series connection, controllable silicon S1 trigger voltage adds by voltage-stabiliser tube Z4, and J1 contact J1-A, J1-B are serially connected in the power supply input circuit.

9, telephone supervisor according to claim 6 is characterized in that: polarity protection and ring control circuit (7) mainly are made of the relay J 2 of carrying out the internal circuit polarity protection, and relay contact J2-A, J2-B are serially connected in the power supply input circuit.

10, telephone supervisor according to claim 1 is characterized in that: also be connected to voice and wait for circuit (8) between control circuit (3) and telephone set port (4), these voice wait for that circuit (8) mainly is made of voice integrated chip T12.

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