CN2237306Y

CN2237306Y - Automatic sound reproducing device for telephone

Info

Publication number: CN2237306Y
Application number: CN 95212893
Authority: CN
Inventors: 陈冬; 汪向东
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-26
Filing date: 1995-05-26
Publication date: 1996-10-09
Anticipated expiration: 2005-05-26

Abstract

The utility model relates to an automatic playback device of a telephone. Under the premise that the original properties of the ordinary telephones are not changed, a voice recording-playback and automatic playback switching circuit D is added in the telephone. The circuit D is composed of a filtering voltage stabilizing circuit D1, a voice recording-playback and power amplification circuit D2 and an automatic-switch switching circuit D3. When people pick up handsets to dial, various voices recorded well previously can be automatically played in the ringing acoustic horn C of the telephone, such as advertisements, etc. The volume is adjustable. The automatic playback device of the telephone is especially suitable for public telephones. The utility model has the advantages of simple structure, small volume, low cost and convenient installation.

Description

The automatic playback set of a kind of phone

The utility model relates to the automatic playback set of a kind of phone.

Common phone dials in to from picking up a receiver to be connected this section free time and never is utilized.

The purpose of this utility model is to install a cover voice recording playback and an automatic playback converting system additional in telephone set inside, make full use of during this period of time so that reach, make people when the machine that picks up the telephone dials or answers the call, the voice that automatic broadcast has been recorded from the ring loudspeaker of microphone etc., content can be various information, knowledge or advertisement etc.

Block diagram of the present utility model as shown in Figure 1, it is on the basis of plain old telephone A (telephone set rectification circuit), B (circuit between electric bridge output and the ring loudspeaker), C (ring), increase speech recording and reproducing and automatic playback change-over circuit D, this circuit is got electric bridge is exported later in the A circuit the direct voltage Vi power supply as voice plate and power amplifier, and the voice that play are broadcasted by ring loudspeaker C.As shown in Figure 2, circuit D is by a filter regulator circuit D1, and speech recording and reproducing and power amplification circuit D2 and an automatic switch commutation circuit D3 form.As shown in Figure 3, filter regulator circuit D1 is made up of inductance L 1, capacitor C 1, resistance R 1 and zener diode Z1, crosstalk sense L1 after coming out from power supply Vi line, crosstalk resistance R1, shunt capacitance C1, secondary voltage-stabiliser tube Z1 in parallel.L1 and C1 can guarantee that voice device and phone do not disturb each other mutually, can both operate as normal.R1 and Z1 can guarantee that the voltage that is provided is basicly stable.As shown in Figure 4, circuit D2 adds a power amplification circuit D22 by an audio record circuit plate D21 (existing at present sale of finished goods) and forms, and J1 is a record button, and playback switch is connected in the time-delay that act as of inductance L 2.Switch switching circuit D3 is by two empty biserial three end automatic change-over (hereinafter to be referred as switch) D3 ' formation (see figure 5)s, switch D3 ' is divided into two row, represent with J21 ', J22 ' respectively, J21 ' represents 1 ', 2 ', 3 ' end, J22 ' represents 4 ', 5 ', 6 ', 7 ' end, (4 ', 7 ' be same end).Switch D3 ' connection is as Fig. 4 and shown in Figure 5: the both sides circuitry lines of the ring loudspeaker C of telephone set is disconnected, get breakpoint 1,3 and 4,5 (see figure 4)s respectively, 1 of switch J21 ' ' end (common terminal) and breakpoint 1 are joined, and the output 2,3 of 2 ' termination power amplifier D22 ' end joins with breakpoint 3.4 of J22 ' ' holds, 7 ' end draws two lines and breakpoint 4,7 (trailing edge playback point) joins, and 6 ' end joins with 6 points (ground wire), and 5 ' end and breakpoint 5 join.

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

Fig. 2 is the composition block diagram of circuit D.

Fig. 3 is the circuit diagram of the filter regulator circuit D1 among the circuit D.

Fig. 4 is the circuit diagram of circuit D.

Fig. 5 is the location diagram between microphone of the present utility model (a), hook switch (b), the switch D3 '.

Below in conjunction with accompanying drawing, specify embodiment of the present utility model:

Recording Process: select SR9G26 voice plate, the recording substance of this voice plate D21 is solidificated on the chip, is not afraid of power down, and recording can forever be preserved, and also can change at any time.Voice plate D21 is connect+5V voltage VC, press record button J1 (see figure 4), key does not unclamp between record, and the ready language of typing is as advertisement etc.Unclamp button J1, End of Tape, record length is at 4～20 seconds, selects other voice plate record length also can be at 3～60 seconds as required.

As shown in Figure 5: the receiver that picks up the telephone (a), at this moment, hook switch (b) depress switch D3 ' (as shown by arrows), 3 points (original call line) among the J21 (corresponding with J21 ') and 1 point (the ring horn wire of phone) disconnect, 1 and 2 points (output of power amplifier D22) connection, 1 is common point.4 points (phone ringing horn wire) among the J22 (corresponding with J22 ') and 5 points (primary circuit line) disconnect, 4,7 and the connection of 6 points (ground wire), just make voice plate D21 trailing edge playback point and ground wire short circuit once, circuitry lines one end of phone ringing loudspeaker C and ground wire are connected; That is: because switch D3 ' triggering is cut off the former ringing circuit of phone, connect broadcast circuit and power amplifier, the voice of recording are broadcasted from hands-free loudspeaker.Therefore, in the receiver that picks up the telephone, can hear advertisement or other voice of being recorded in the hands-free loudspeaker of phone, volume is adjustable.The advertisement of dialing or speech and this side of picking up the telephone is independent of each other.If use hands-free can normally the use, at this moment, phonetic function stops, and phonetic function does not conflict with original phone function.Put down microphone (a), switch D3 ' connects the former ringing circuit of phone, and broadcast circuit and power amplifier disconnect, and make phone recover ringing condition.

The utility model is simple in structure, and volume is little, and is easy for installation, and cost is low, stable performance, Need changing voice can rerecord, and is specially adapted to public telephone, but advertisement, information, regulations system Degree etc. can be used as message, signal language etc. for home phone number, WorkPhone.

Claims

1, the automatic playback set of a kind of telephone set is characterized in that: it is to increase speech recording and reproducing and automatic playback change-over circuit D on the basis of ordinary telephone set A (telephone set rectification circuit), B (circuit between electric bridge output and the ring loudspeaker), C (ring); This circuit D is with the direct voltage of the A output power supply as voice plate D2 and power amplification circuit D22, and the voice that play are broadcasted by ring loudspeaker C.

2, the automatic playback set of telephone set according to claim 1 is characterized in that: the circuit D that is introduced is by a filter regulator circuit D1, and speech recording and reproducing and power amplification circuit D2 and an automatic switch commutation circuit D3 form.

3, the automatic playback set of telephone set according to claim 2, it is characterized in that: filter regulator circuit D1 is made up of inductance L 1, capacitor C 1, resistance R 1 and voltage stabilizing didoe Z1, crosstalk sense L1 after coming out from power supply Vi line, crosstalk resistance R1, shunt capacitance C1, secondary voltage-stabiliser tube Z1 in parallel.

4, the automatic playback set of telephone set according to claim 2, it is characterized in that: the big circuit D2 of speech recording and reproducing and power merit is made up of an audio record circuit plate D21 and a power amplification circuit D22, has an inductance L 2 to join with audio record circuit plate D21.

5, the automatic playback set of telephone set according to claim 2 is characterized in that the switch among the automatic switch commutation circuit D3 is a pair of control biserial three end automatic change-over D3 '.