CN2190384Y

CN2190384Y - Automatic telephone recorder

Info

Publication number: CN2190384Y
Application number: CN 94204494
Authority: CN
Inventors: 胡宇
Original assignee: DABO ELECTRONIC INFORMATION TECHNOLOGY INST BEIJING
Current assignee: DABO ELECTRONIC INFORMATION TECHNOLOGY INST BEIJING
Priority date: 1994-04-28
Filing date: 1994-04-28
Publication date: 1995-02-22
Anticipated expiration: 2004-04-28

Abstract

The utility model discloses an automatic answering and recording device for telephones, which is suitable for various wire telephone communications systems. The utility model comprises a speech circuit, a speech synthesis circuit of leaving massage from speech speaking parts, a speech synthesis circuit of leaving massage for speech collection parts, and a CPU control circuit. The utility model makes use of the CPU control circuit and a control program control digital voice synthesis circuit for speech synthesis and regeneration, and makes use of a password input circuit to realize the remote control function of the automatic answering and recording device for telephones. When power is off, a cell can supply power; the normal work of the utility model and the data preservation in a memory are ensured by a power-off protective circuit.

Description

Automatic telephone recorder

The utility model relates to a kind of phone automatic answering machine device, is applicable in the various telephone communication systems.

Common phone automatic answering machine device mainly is made of magnetic tape recorder-reproducer, ring detecting circuit and control circuit at present, is characterized in the storing unit of magnetic tape recorder-reproducer as speech signal.This mode is had relatively high expectations to mechanical precision, exists problems such as tape loss, mechanical aging.

No. the 92205367.7th, the patent application that Patent Office of the People's Republic of China (PRC) announces, " unrecorded tape phone automatic answering device " finishes the recording and reproducing function of voice by ring detecting circuit, switching circuit, sound-compound-circuit, sequential control circuit, counting circuit.Be characterized in replacing magnetic tape recorder-reproducer, overcome the problem of tape loss and mechanical aging with the digital speech combiner circuit.But the controlled function of this device is realized by logical circuit that fully no distant control function and power-off protection function do not possess intelligentized characteristics, can't judge and handles various interference signals.

The purpose of this utility model is to provide a kind of improved digital phone automatic answering machine device, and it has intelligentized characteristics, can be effectively to busy tone, and remote control password, signals such as ring are judged and are handled, thereby expanded functions such as remote control.

The purpose of this utility model is achieved in that the synthesizing and regeneration voice by cpu control circuit and control program control figure sound-compound-circuit, import the demonstration of control charactron by cpu control circuit and control program according to button, thereby realize intelligent; Judge and handle the input signal of the password testing circuit of finishing by dtmf receiver by cpu control circuit and control program, thereby realize distant control function.Its circuit constitutes: holding wire A, the B on the telephone wire is connected to ring detecting circuit, busy tone testing circuit, password testing circuit, the output of these circuit links to each other with the middle fracture of CPU, the output of CPU links to each other with the switch terminals of speaking circuit and the Enable Pin of sound-compound-circuit respectively, and links to each other with BDB Bi-directional Data Bus between CPU and the sound-compound-circuit.

Compared with prior art, the utlity model has following advantage: (1) adopts cpu system control, has and judges and disposal ability, and simple in structure, debugging is convenient.(2) do not have machinery wearing and tearing and aging without tape, strengthened the reliability of system.(3) have distant control function, receive the words people and can inform whereabouts at any time, also can in time receive the message of awarding the words people.(4) distant control function is to realize by the input signal of cpu system judgment processing password testing circuit, thereby has higher confidentiality.(5) have power-off protection function, can guarantee the work as usual when having a power failure of phone automatic answering machine device, and the receipts words people's message and the password of storage can not lost when shutdown yet.(6) owing to be to adopt cpu system control, function expands easy, and some function need only be made amendment to control program and just can be realized.

Below in conjunction with embodiment and accompanying drawing thereof the utility model is described in further detail.

Figure＜1〉is an electrical schematic diagram of the present utility model.

Figure＜2〉is the external structure of the utility model first embodiment.

Figure＜3〉is the circuit theory schematic diagram of figure＜2〉embodiment.

Figure＜4〉is the control program flow chart of figure＜2〉embodiment.

In the external structure of first embodiment shown in the figure＜2 〉, the input of the signal of phone automatic answering machine device A, B end can be connected on the terminal box of telephone set; Outside 220V AC power is introduced by C after voltage stabilizing; D is a record button, and E is a stop key, and F is for putting several keys, and G is a playback button, and H is digital demonstration, and I is an indicator light, and S is mains switch and volume control knob.

In the circuit theory schematic diagram of figure＜2〉embodiment shown in the figure＜3 〉, N2 is optional 51 series of CPU as 8031; 01 is photoelectrical coupler, optional TIL117; N7 is eight buffers, optional 74LS244; N8 is a dtmf receiver, optional UM92870; N9 is an audio decoder, optional 567; N11, N12 are dynamic memory, optional 4164; N14 is a power amplifier, optional LM386; N15 is the amplifier of charged sub-switch, can be made up of triode; N6 is the 8D trigger, can select 74LS377 for use; N5 is a charactron; N3 is the 8D latch, optional 74LS373; N4 is EPROM, optional 27512; N13 is a speech processor, optional KS5917.

Speaking circuit is made of N15, and it and A realize polarity protection by B2 between the B line; the P12 mouth of N2 is by the break-make of the 2 control K of N15, and the audio signal on the telephone wire is through the amplification of N15, shaping; filtering is received words side and is awarded words side's message sound-compound-circuit through 1,3 input and output respectively.

Ring detecting circuit is by C2, B1, and R4, R5, E2, Z1, O1 forms, and by A, the bell signal that the B line enters is through C2, B1, R4, R5, E2, the rectification of Z1, filtering are added to the input 1,2 of photoelectrical coupler O1, and the output of O1 links to each other with the interrupting input end T1 of N2.When telephone ring signal was imported, N2 was by the break-make of P12 control electronic switch.

The password testing circuit is by C1, C3, C5, R2, R6, R7, E1, N8 forms, and wherein Resistor-Capacitor Unit is the peripheral circuit of N8, when N8 from IN1, receive A among the IN2, during code signal on the B line, the DV end goes out interrupt signal to the INTO of N2 human hair combing waste, and N2 receives the code signal that N8 received and gave processing by data/address bus from N7 after receiving interrupt signal.

The busy tone testing circuit is by R8, R9, C4, C6, C7, C8, N9 forms, wherein Resistor-Capacitor Unit is the peripheral circuit of N9, when N9 receives A from the IN pin, during the busy-back signal of B line, N9 goes out interrupt signal by the OUT pin to the INT1 of N2 human hair combing waste, after N2 receives the busy tone interrupt signal,, thereby realize automatic hand-up by the break-make of P12 foot control system electronic switch.

Cpu control circuit is mainly by R11, R12, R13, R14, D, E, F, G, N2, N3, N4, N5, N6, N7 form, R11 wherein, R12, R13, R14, D, E, F, G are the switch input circuit, recording stops, put the A1 of operating states such as number and playback through N7, A2, A3, A4 send into N2, are received and the judgement current state N2 by N2, N3, N4, N7 forms single-chip computer control system, N5, N6 finishes Presentation Function.

Receive words side and award words side's message sound-compound-circuit by M1, S2, E3, E4, C9, C10, C11, R10, R15, R16, N13, N14 add that respectively N11 and N12 form, wherein N13 is the chipspeech that has manually with CPU control operation mode switch end, and it enables input CE and links to each other with the output line P25 of N2, and N2 passes through the break-make of CE foot control system sound-compound-circuit, 8 BDB Bi-directional Data Bus D link to each other with the P end of N2, and words side's message is received in the N11 storage, and words side's message is awarded in the N12 storage, N14 is a power amplifier, S2, C10, E3, R15, C11, R16, E4 is the peripheral circuit of N14, and the receipts words side message of Mike M1 input is received by the MI pin of N3.

When push button signalling is imported, system control cpu looses according to different push button signallings to be changeed, number of rings is set respectively, records and receive words people message, play and receive words people message, record family's message, play family's message, play and award words people message, remove and award words people message, operation such as password is set, wherein arbitrary operation all can be by stop key E terminating operation, and awards words people message and optionally play.

When ring detecting circuit had the signal input, system control cpu is judged had nobody to answer the call, if there is the people to connect, continued to wait for; If nobody connects, the receipts words side message sound-compound-circuit in the triggered digital sound-compound-circuit is realized automatic off-hook, and the audio digital signals that VODER will be stored in the memory in advance carries out the D/A conversion, will receive words people message and send by A, B line.Receiving words people message finishes, the cpu system internal counter starts, keep the input signal that a period of time receives the password testing circuit, if the input of no password, award words side's sound-compound-circuit in the triggered digital sound-compound-circuit, at this moment award and talk about people's sound and enter VODER through A, B line, change by A/D, deposit in the memory, under the situation that memory space allows, recording time is hard-core with recording number of times; If the password input is arranged, is system control cpu judged password right? mistake is then hung up the telephone automatically, and to then receiving the order input, loosing according to order changes, and plays respectively and awards words people message, removes and award words people message, record operations such as receiving words people message again.Under the automatic off-hook operating state, in case receive busy-back signal, the meeting automatic hand-up also can receive the on-hook order by button, thereby realizes on-hook.

With the interrupt mode communication, signal is difficult for losing between ring detecting circuit, password testing circuit, busy tone testing circuit and the cpu control circuit, thereby has increased the reliability of system works.

The utility model is in parallel with power-off protecting circuit with the external power supply circuit in power circuit, when outage, can switch to powered battery by the external power supply power supply automatically, thereby guarantee the operate as normal of phone automatic answering machine device.When shutdown, power-off protecting circuit also can play the function of power down protection, preserves the data in CPU and the memory.When external power supply was powered, the utility model also can charge to rechargeable battery automatically.

According to above-mentioned principle, the utility model also can be integrated the internal structure and the plain old telephone of phone automatic answering machine device.

Claims

1, a kind of phone automatic answering machine device, it comprises: casing, power supply circuits, speaking circuit, award words side's message sound-compound-circuit and receive words side's message sound-compound-circuit, it is characterized in that: it also comprises can receive and judge busy-back signal, bell signal, the remote control code signal also can be controlled the cpu control circuit of sound-compound-circuit to the synthetic and regeneration of voice signal, its circuit constitutes: the holding wire A on the telephone wire, B is connected to ring detecting circuit, the busy tone testing circuit, the password testing circuit, the output of these circuit links to each other with the middle fracture of CPU, the output of CPU links to each other with the switch terminals of speaking circuit and the Enable Pin of sound-compound-circuit respectively, and links to each other with BDB Bi-directional Data Bus between CPU and the sound-compound-circuit.

2, phone automatic answering machine device according to claim 1 is characterized in that: the selection of all functions is to be finished by 4 combinations of touching button, and function and state indication are finished by charactron and light-emitting diode.

3, phone automatic answering machine device according to claim 1 is characterized in that: sound-compound-circuit is to be made of chipspeech and peripheral circuit thereof with manual and CPU control operation mode switch end.

4, phone automatic answering machine device according to claim 1, it is characterized in that: the password testing circuit that is used for distant control function is made of dtmf receiver and peripheral circuit thereof.