KR850001593B1 - Telephone with automatic arrangement - Google Patents

Abstract

An automatic telephone answering device with a voice synthesis device can automatically transmit messages stored in a memory to a transmitter, and can record the transmitted contents from the transmitter into a recording device. A ring signal terminal is connected with a ring-signal detecting element (1), a relay (2) and a primary transformer coil. A microprocessor is connected with the ring-signal detecting element(1), a key matrix element (4), the voice synthesis device (5) and a wave-shaping element (6).

Description

Telephone answering device

1 is a circuit diagram of the present invention.

* Explanation of symbols for main parts of the drawings

1: ring signal detection unit 2: relay unit

3: microprocessor 4: key matrix portion

5: speech synthesis device 6: waveform shaping unit

7: motor drive part 8: low pass filter

9: telephone noise canceling circuit 10: double voltage amplifier circuit

11: emitter follower 12: feedback

13 amplification circuit 14 high frequency compensation circuit

15: recording circuit AMP: audio amplifier

FB, FB ', ANI, ANO, PAI, PAO, ALC, OUT: Each terminal of AMP

HDI: Head for recording and playback HD2: Head for erasing

RY: Relay M: Motor

SW1-SW4: Playback and recording switch SP: Speaker

The present invention relates to an automatic telephone answering device capable of automatically sending a message to a counterpart in a voice synthesizer when a telephone call is received from the outside and automatically recording the contents of the telephone call from the counterpart.

The conventional apparatus adopts a method of recording a message sent to the outside on a tape, and automatically recording the recorded content on the tape to another party and recording the call from the other party to another recording device when a telephone call comes in. This is a complicated mechanical structure and the resulting circuit has a complex defect.

The present invention is to improve the above-mentioned shortcomings, when the ringer rings when a call is missed in the absence, the voice synthesizer automatically transmits the response content according to the program set by the called party to the talker. When it is applied to the microprocessor, it detects the number of pre-selected ring signals, cuts off the ring signals, switches to the call state, and delivers the pre-selected response information to the talker through the telephone line for a certain time. An object of the present invention is to provide an automatic telephone answering device using a speech synthesis apparatus capable of recording a message of a talker.

Hereinafter, the configuration, operation, and effects of the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, the ring signal detector (R) (T) is the primary coil of the ring signal detection unit 1, the relay unit 2 and the transformer (TN), the ring signal detection unit 1 is a microprocessor (3), The microprocessor 3 includes a key matrix unit 4, a voice synthesizer 5, a waveform shaping unit 6, a transistor Q3, and a motor driver 7 with a voice synthesizer 5 and an audio amplifier AMP. The low pass filter (8) is connected between the transistors (Q3) and the switch (SWI) in the response output terminal (ANO) of the audio amplifier (AMP), the telephone noise canceling circuit (9) and the transformer ( The secondary coil of TN is connected between the level control terminal ALC of the audio amplifier AMP and the secondary coil of the transformer TN, and the double voltage amplifier circuit 10 and the emitter follower 11 are connected to the audio amplifier AMP. The feedback unit 12 is connected between the feedback terminal FB (FC ') of the amplifier and the amplification circuit 13 and the high frequency compensation outward 14 through the condenser C9 to the power output terminal PAO of the audio amplifier AMP. And switches (SW 2) The recording circuit unit 15 is connected to the switch SW2, and the speaker SP is connected to the output terminal OUT of the audio amplifier AMP via the condenser C16.

Unmarked BD is a bridge rectifier circuit, RY is a relay, SW1-SW4 is a playback and recording switch, LED is a light emitting diode, M is a motor, HD1, HD2 is a head.

As shown in FIG. 1, the ring signal detection unit 1 connected to the ring signal terminals R and T is composed of a bridge rectifying circuit BD, a smoothing circuit R2 C1, and a transistor Q1. The resistors R3 and R4 are base bias resistors connected to the base of the transistor Q1, and the collector of the transistor Q1 is connected to the ring signal input terminal of the microprocessor 3.

In addition, the relay unit 2 connected to the ring signal terminals R and T is composed of a relay RY, a transistor Q2, and a resistor R6 and R7. The relay RY coil is connected to the transistor Q2 collector. The switch terminal of the relay RY is connected between the ring signal terminals R and T through the primary coil of the transformer TN.

The voice synthesizer 5 is connected to the terminals ① -③ of the microprocessor 3 through a bus line, the waveform shaping unit 6 is provided at the terminal ④, and the resistor R15 is connected to the terminal ⑤. The base of the transistor Q3 is connected to the terminal (6), the light emitting diode (LED) is connected to the terminal (6) via the resistor R26, and the terminal (7) is connected to the transistor (R6) in the relay unit 2 through the transistor. The base of (Q2) is connected to the terminals (8) and (9) via the resistors R27 and R28, and the motor drive unit 7 and the recording circuit unit 15 are connected to the terminals (8) through the bus matrix. The part 4 is connected.

The collector of the transistor Q3 connected to the microprocessor 3 via the resistor R15 is connected to a telephone elimination circuit 9 composed of resistors R8-R10 and capacitors C3 and C4, and then to R11. ), The response output terminal ANO of the audio amplifier AMP and the recording and response terminal of the switch SW1 are connected.

The secondary coil of the transformer TN is connected to an emitter follower 11 composed of resistors R12, R13, capacitors C5, C6, and transistors Q4, and a resistor R14. 10) and each end of the amplifying circuit 13 and the high frequency compensation circuit 14 are connected. The other end of the double voltage amplifying circuit 10 is connected to the level control terminal ALC of the audio amplifier AMP. The other end of the circuit 14 is connected to the recording and response terminal of the switch SW2, and the other end of the amplifying circuit 13 is connected to the resistor R16 and the condenser C9 via the power output terminal of the audio amplifier AMP. PAO). The high frequency compensation circuit 14 used here includes a resistor R20 and a capacitor C13 in parallel, and the amplifier circuit 13 has a resistor R19 connected to an emitter of the transistor Q5 and a resistor ( Operating power (Vcc) is connected through R18), and resistor (R17) and capacitor (C11) are connected between collector and base. The high frequency compensation circuit 14 and the double voltage amplifier 10 are connected to the output terminal.

The feedback unit 12 connected to the feedback terminal FB (FB ') of the audio amplifier AMP includes a variable resistor VR, resistors R21-R23, capacitors C14 (C15), and a switch SW3. .

The recording circuit unit 15 connected to the switch SW is composed of resistors R24 and R25, a switch SW4, and a head HD1 and HD2. The head HD1 is for recording and playback, and the head HD2 is It is for erasing.

On the other hand, the motor driving unit 7 connected between the recording circuit unit 15 of the microprocessor 3 has a terminal (⑨) of the microprocessor 3 recording the collector to the collector via a resistor R29 at the base of the transistor Q6. The regeneration terminal of the switch SW4 in the circuit section 15 is connected.

The switch (SW1-SW4) has recording and response terminals and playback terminals, and each switch is operated in conjunction with each other. The current position in the drawing is the recording and response state, and the open position is the playback terminal, and the key matrix unit 4 is a user. Is composed of a keyboard capable of operating the device according to the present invention as necessary and a resistor R30 and R31 for voltage application.

When the ring signal is input to the ring signal terminal R (T) of the present invention as described above, the signal is smoothed by direct current in the bridge rectifying circuit BD and the smoothing circuit R2 (C1), and then As a bias voltage is applied to the base to turn the transistor Q1 ON-OFF, a pulse signal is introduced from the collector of the transistor Q1 to the ring signal inlet terminal of the microprocessor 3. Then, the signal output from the terminal ⑦ of the microprocessor 3 is applied to the base of the transistor Q2 through the resistor R6 to turn on the transistor Q2, so that the relay RY is turned on.

On the other hand, the signal output from the terminals ① and ② of the microprocessor 3 to the speech synthesis apparatus 5 through the bus line is the speech synthesis apparatus 5 which transmits the response content set in advance by the user through the local filter. 8) and the switch SW1 and the condenser C7 and C8 to the audio amplifier AMP. The response signal introduced into the audio amplifier AMP is output to the output terminal PAO through the preamplifier in the audio amplifier AMP, and is transmitted to the amplifier circuit 13 through the capacitor C9 and the resistor R16, thereby amplifying the circuit. After amplification at (13), it is applied to the secondary rail of transformer TN through resistor R14 and emitter follower 11. At this time, since the relay RY is in the silver state, the response signal applied to the secondary coil of the transformer TN is induced to the primary coil and then transmitted to the telephone line through the ring signal terminal R (T) to respond to the talker. The signal is delivered.

After the transmission of the response signal, when the talker starts recording and the tape of the recording circuit unit 15 is output from the terminal ④ of the microprocessor 3 to inform the classification of the received content according to the message content of the talker to be recorded. The pulse is converted into a square wave in the waveform shaping section 6 and passed through the audio amplifier AMP, the resistor R11, and the telephone noise canceling circuit 9 to the secondary coil of the transformer TN, as described above. It is discharged to the primary coil of the transformer TN and then sent to the talker through the telephone line.

As described above, in the present invention, after the response signal is transmitted, the signal output from the microprocessor 3 through the terminals (8) and (9) is turned on to the transistor Q6 in the motor driving unit 7 so as to turn on the motor M. And the operating power supply Vcc is applied to the head HDI HD2 through the resistors R24 and R25, so that the telephone answering device according to the present invention is ready for recording. At this time, the received message signal containing the message of the sender received through the ring signal electron (R) (T) is applied to the primary coil of the transformer (TN) through the relay RY in the on state, and the secondary coil. The received message signal induced at the audio signal is removed from the noise reduction circuit 9, and then the preamplifier input terminal of the audio amplifier AMP is provided through the resistor R11, the switch SW1, and the capacitor C7 and C8. It is entered as (PAI). The received message signal amplified by the preamplifier in the audio amplifier AMP is output from the terminal PAO, input to the amplifying circuit 13 through the capacitor C9 and the resistor R16, and amplified by the amplifying circuit 13. The received message signal is then output to the head HD1 of the recording circuit unit 15 through the high frequency compensation circuit 14 and the switch SW1 to perform a recording operation. At this time, a part of the signal output from the amplifying circuit 13 is fed back to the level control terminal ALC of the audio amplifier AMP through the double voltage amplifier 10 and outputted to the terminal PAO again to the recording circuit unit 15. Keep the level of the signal sent out stable.

On the other hand, when the user hears the message recorded on the tape in the recording circuit unit 15, the switch (SW1-SW4) is connected to the switch (SW4) by connecting to the playback terminal that is open from the response and recording terminal that is currently connected The operating power source Vcc is applied to the motor M. Then, the playback signal recorded on the tape is detected by the head HD1, and then sequentially passes through the switches SW2 and SW1, and is led to the audio amplifier AMP via the capacitors C7 and C8. The reproduced signal amplified by the preamplifier in the audio amplifier AMP is output to the terminal PAO, and is again input to the terminal FB of the audio amplifier AMP through the capacitor C9 and the variable resistor VR. Since the power amplifier is amplified by the power amplifier in the audio amplifier AMP and applied to the speaker SP through the condenser C16, the message of the caller detected by the head HD1 can be heard by the speaker SP. will be.

During this response, the microprocessor 3 operates the light emitting diodes (LEDs) to indicate that the device is in operation, while counting the number of times a call is made and flashing the light emitting diodes according to the number of times. You can visually identify the number of times a number has been received.

The switch OGM in the key matrix unit 4 is for an input signal for checking the contents of the speech synthesis apparatus 5, and the switches RG1 and RG2 are input to the ring signal terminals R and T. The input signal is used to select the number of times the microprocessor 3 detects the signal, and the switch TM1 and TM2 are times at which the message of the caller can be recorded in the auto answer standby state of the present invention. To set the switch.

As described above, the present invention can automatically notify the other party by using a voice synthesizer when the call is in the absence, and automatically records the message of the other party on a tape to make communication means more smooth and convenient. There is an advantage to this.

Claims (1)

As described above and illustrated in the exemplary drawings, the ring signal terminals R and T include the ring signal detection unit 1, the primary coils of the relay unit 2 and the transformer TN, and the ring signal detection unit 1. The microprocessor 3 includes a key matrix unit 4, a voice synthesizer 5, a waveform shaping unit 6, a transistor Q3 and a motor driver 7 in the microprocessor 3, and a voice synthesizer. A low pass filter 8 is provided between the audio amplifier AMP, transistor Q3 and switch SW1 at the response output terminal ANO of the audio amplifier AMP, and telephone noise at the transistor Q3. The elimination circuit 9 and the secondary coil of the transformer TN have a double voltage amplifier 10 and an emitter follower between the level control terminal ALC of the audio amplifier AMP and the secondary coil of the transformer TN. 11), the feedback unit 12 is connected between the feedback terminals FB (FB ') of the audio amplifier AMP, and the amplification circuit is connected to the power output terminal PAO of the audio amplifier AMP via a condenser C9. With 13 The high frequency compensation circuit 14 and the switch SW2 are connected to the switch SW2 by the recording circuit unit 15 and the output terminal OUT of the audio amplifier AMP through the condenser C16. Connected Telephone Answering Device.

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