SU1259511A1 - Automatic telephone answer-back - Google Patents

Abstract

This invention relates to telephone communications. The equipment overhead time is reduced. Automatic telephone transponder contains input unit 1, call signal generator 3, time interval generator 4, readiness signal generator 5, control signal generator (FSU) 6 switch 2, service code decoder (service control unit) 7, control unit (CU) 8, connection unit 9, a recording unit 10, a busy signal conditioner and two wires 12 and 13 of the communication line. The goal is achieved by the introduction of switch 2, FSU 6, DKU 7 and BU 8, with the help of which the caller, who, having heard the ready signal of the automatic responder, can start working with him in one of three modes: recording, playback and erasing information. Examples of the execution of the input unit 1, switch 2, FSU 6, DKU 7, BU 8 and connection block 9, 7, or 1 table are given. (L O1; about SP

Description

"one

The invention relates to a telephone communication technique and can be used to convey necessary information to a desired subscriber by recording it in the device and then playing it at the request of the subscriber.

The aim of the invention is to reduce the unproductive time spent on equipment.

FIG. 1 is a schematic diagram of an automatic telephone responder; in fig. 2 - diagram of the input unit; in fig. 3 - switch diagram; Fig. 4 is a diagram of a switch driver control signal generator; in fig. 5 is a schematic of a service code decoder; in fig. 6 is a control block diagram; Fig. 7 is a block diagram of the connection.

The device contains (Fig. 1) input block 1, switch 2, call signal generator 3, time interval generator 4, ready signal generator 5, switch control signal generator 6, service code decoder 7, control block 8, connection block 9, block 10 records, the shaper 11 of the busy signal, the first and second wires 12 and 13 of the communication line.

The input unit 1 (Fig. 2) contains the first key 14, the resistor 15 holding and the first trigger 1 & ..

Switch 2 (FIG. 3) contains the second, third, fourth, and fifth keys 17–20, the first decoder 21.

The driver 6 of the switch control signals (FIG. 4) contains the first capacitor 22, the first resistor 23, the first inverter 24, the second and third triggers 25 and 26.

The decoder 7 service code (Fig. 5) includes the first element 27 delay, the counter 28, the fourth trigger 29, the first, second, third And the fourth elements And 30-33, the second decoder 34.

The control unit 8 (Fig. 6) contains the first, second, third, fourth, fifth and sixth diodes 35-40, the fifth trigger 41, the fifth element AND 42, the second delay element 43, the second capacitor 44, the second th resistor 45, the third capacitor 46, the third resistor 7.

Connection block 9 (Fig. 7) contains sixth, seventh and eighth terminals 48-50.

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The device works as follows.

In the initial state, the automatic telephone responder is waiting for a call, while the resistor 15 for holding the input unit 1 is disconnected from the communication line; the first and second wires 12 and 13 of the communication line are connected to the switch 2 to the input of the call signaling device 3; the ready signal generator 5 is off; the tape mechanism of the recording unit 10 is turned off; At the output of the control unit 8 there are no control signals.

When a call is received from the PBX via the first and second wires I2 and 13 of the communication line, it passes through the switch 2 to the input of the call signal generation 3, which checks the validity of the PBX call signal and generates a single pulse at its output. The pulse from the output of the imaging unit 3 is supplied to; input input unit 1, which; connects to the first and second wires of the 12th and 13th communication lines and holds the resistor 15, thus achieving the occupation of this line. At the same time, a single pulse arrives at the input of the generator of 4 time intervals and generates a pulse with a duration of several seconds, which is necessary for generating a response signal to the calling subscriber. The signal from the output of the generator 4 is fed to the input of the generator: 5 ready signal and turns it on. Simultaneously, the signal is fed to the input of the former 6 of the control signals of the switch, which generates at its first output a signal for connecting the switch 2 of the first and second wires 12 and 13 of the communication line to the output of the generator 5. Thus, the readiness signal An electronic responder to work (a tone frequency signal generated by generator 5) is sent to the calling subscriber. Upon termination of the impulse5 generated by the generator 4, the generator 5 is turned off, and the driver 6 generates at its second output a control signal for the switch 2, which by this signal connects the first and second wires 12 and 13 of the communication line to the conditional code 7. By typing an automatic responder’s ready signal, the caller can

start working with the defendant in one of three modes: recording, replay, erasing information.

In the Record mode, the necessary information is recorded in the recording unit 10. To do this, the caller, after he has heard the dial tone of the device, dials the service code (two digits) corresponding to this mode of operation of the transponder using the dialer of his telephone set. The signal (the code goes through the switch 2 to the input of the decoder 7 of the service code, which after some time (necessary to count the number of pulses of the incoming code) generates at its first output a signal to switch the switch 2, which connects the second output of the connection unit 9 to the subscriber, and second signal, which is fed to the second input of control unit 8. At the same time, control unit 8 generates a signal at the second output, which in the connection block 9 internally connects the first and second outputs Ultimately, a first (microphone) input of the recording unit 10 is connected to the caller (via connection unit 9 and switch 2.) At the same time, control unit 8 generates a single dashul on the fourth output, which includes a tape recorder of the recording unit Yu (not shown). Then, the text dictated by the subscriber is recorded on a magnetic tape. Upon completing the text dictation, the avonent returns the handset to its place, and the AT Zan signals are sent to the first and second inputs of the receiver. } Busy signal 1, which is determined by the validity of the presence signals and the generated pulse is reset to the initial state. The impulse reset is sent to the first inputs of the decoder 7 of the service code and the control unit 8 and to the second input of the driver 6 of the control signals of the switch, in this case the driver 6 and the decoder 7 generate control signals at their outputs that switch the switch 2 to the initial state (communication line connected to the input of the former 3 call). Block 8 control after the arrival of the pulse

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Reset transfers the tape mechanism of the recording unit 10 from the Recording mode to the Tape Rewinding mode in order to reduce the return time; nor the magnetic tape ring to its initial position. This is achieved by generating control signals at the sixth and seventh outputs of control unit 8, respectively. The control signal at the sixth output stops the tape-breaking mechanism (Stop), and at the seventh output switches its B fast-winding mode (tape rewind). In the moment

15, when the magnetic tape reaches its initial position at the second output of the recording unit 10,

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Signal that returns the automatic responder to its initial state: the control unit 8 disables the tape drive mechanism of the recording unit 10. Input unit 1 disconnects the hold resistor 15. Automatic telephone responder is ready for further work.

In Playback mode, the information recorded in block 10 is played. The sequence of operation of the automatic telephone responder units is similar to the Recording mode. The difference is that, at the command of the control unit 8, the line output of the record unit 10 is connected to the communication line through the connection unit 9. When the ready signal for operation is received, the subscriber dials the code (two digits) of the Playback mode, which goes through switch 2 to the decoder 7 of the service code, which generates a command to connect the first and second wires 12 and 13 of the communication line to the output of the connection block 9 and The signal for the control block 8 arriving at its third input from the third output of the decoder 7. In this case, the control block 8 generates a control signal at the third output, which is fed to the fourth input of the connecting block 9, and under its action Dietz compound input and the second output unit 9 connecting .In this result on output device through the switch 2 and the connecting block 9 is connected the first output (linear) 10 recording block. Simultaneously, the control unit 8 forms the sixth SX12 on the sixth

A single pulse, including the tape mechanism of the recording unit 10. Reproduction of recorded information is performed. When you finish listening to the text, the caller returns the handset of his telephone to his place. The automatic telephone transponder returns to its original state, similar to Recording mode.

In the Erase information mode, the outdated (unnecessary) information is erased, Dp of this calling subscriber, having heard the device response signal, dials the Erase Information mode code (two digits) and returns the handset of the telephone set to its place. Erasing information and returning the device to its original state is done automatically. In this case, the Erase information mode is similar to the Record mode. The difference is that in this case a signal with zero amplitude is recorded. This is achieved by the fact that the signal from the first output of the control unit 8 arriving at the first input of the connecting unit 9, in the latter, the first (microphone) input of the recording unit 10 is bypassed. In addition, in order to eliminate the long-term effect of PBX signals, on the call signal generator 3, the switch 2 in the Erase information mode switches to the neutral position. This is achieved by the fact that the logical I signal from the first output of the control unit 8 is fed to the sixth input of the input switch 2 and switches. The signal for switching on the tape drive mechanism of the recording unit 0 is formed in the control unit 8 at the fourth output and is fed to the second input of the recording unit 10. The tape mechanism is switched off and the device returns to its initial state in the same way as the Recording mode, while connecting the first and second wires 12 and 3 lines of communication to the input of the call signaling device 3 is performed by the switch 2 after the logical output O of the control unit 8 of the logical O signal arrives at its input. Automatic telephone from The vetchik is ready to work in any of the three modes reviewed.

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Switch 2 (FIG. 3) is designed to connect (in accordance with control signals from other units of the device) first and second — wires 12 and 3 of the communication line to world control 3, generator 5, decoder 7 and connection unit 9. This is achieved by using the second, third, fourth and nth

0 keys 7–20, 5P1 equal to the signals of the first decoder 2, In the initial state, the inputs of the first decoder 2 contain logical signals, while the second

5 key 7, providing connection to the input of the device shaper 3 call signal. The correspondence of the input signals of the first decoder 2 to its output signals can be

0 is presented in the form of a table of states

The decoder 7 of the service code is designed to determine the operating mode 5 of the automatic responder (decipher the mode code specified by the call by the subscriber) and generate the necessary signals for operation of the control unit 8. The decoder 7 of the service code works in the following manner (FIG. 5). In the initial state, the first inputs of the first, second, third, and fourth elements are sent to And the 30-33 logical O signal. In the Record mode, the calling subscriber dials the code (two digits) of this mode. the work of the defendant. The sequence of pulses through the switch 2 is fed to the input of the counter 28 and the input of the first element 27 ederzhki. The delay of the signal at the time of counting the incoming pulses by the responder 28 is necessary to ensure unambiguous operation of the second decoder 34. After counting the pulses in the counter 28, the output from the first delay element 27 receives a signal that switches the fourth trigger 29 to a logic state at its output. The output signal from the fourth flip-flop 29 is applied to the inputs of the first, second, third, and fourth elements 30–33, as a result, logical signals from four bits of the counter 28 are transmitted to the inputs of the second decoder 34. At one of the outputs of the second decoder 34, a logical signal l appears, determining the transfer of the automatic responder to the mode

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Record. Similarly, work mode codes are reproduced by playing back and erasing information. The only difference is that the logical I signals are generated at the other outputs of the second decoder 34. In addition, the signal from the fourth trigger 29 is fed to the input of the switch 2, which connects the block 9. The service code decoder 7 returns to its initial state after arrival pulse Reset from shaper 11 busy signal.

The control unit 8 is designed to generate signals by the input switch, the connection unit 9, the recording unit 10, Consider the operation of the control unit 8. in the Record mode (Fig. 6). In the initial state, at the output of the fourth flip-flop, the logical O signal is set, and at the inverse runoff, the logical 1 signal.

The logical 1 signal from the output of the decoder 7 is fed through the second diode 36 to the fifth diode 39 and to the third input of the connection unit 9. This signal in the connection unit 9 is connected to the input of the microphone input device of the recording unit 10. Simultaneously, the signal enters the differentiating circuit formed by the third capacitor 46 and the resistor 47, and then passes to the second input of the recording unit 10 and switches on the tape mechanism, while the necessary switches of magnetic heads and the like are made in the recording unit.

After the information is recorded, the signal Reset from the fot tt of the driver M of the busy signal goes to the first input of the fifth element I 42, the second input of which receives a signal from the inverse output of the fifth trigger 41. From the output of the fifth element And 42 the signal goes to the second the delay element 43 and the fourth input of the recording unit 10, with the tape mechanism being transferred to the Stop mode, and the signal from the output of the delay line, going to the fifth input of the .10 recording unit, to the Rewinding mode. The control unit 8 returns to the initial state when a signal is received from the second output of the recording unit 10 to the reset input of the fifth flip-flop 41.

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Playback mode is the same as Recording mode. The exception is that the signal from the decoder 7 of the service code is supplied through the third diode 37 to the differentiating circuit formed by the second capacitor 44 and the resistor 45. The turn-on signal for the recording unit 10 in the Play mode is fed to the third input of the recording unit 10.

Claims (1)

Invention Formula An automatic telephone transponder containing an input unit, the first and second inputs of which are connected respectively to the first and second wires of the communication line, call signal generator, occupancy signal generator, serially connected connection and recording unit, readiness signal generator, time interval generator, differing in that, in order to reduce the time of equipment overhead, a series-connected switch, service code decoder and control unit were entered into it, as well as a switch control driver, the first and second outputs of which are connected respectively to the first and second inputs of the switch, the second output of which is connected to the series-connected call signal generator, time interval generator and ready signal generator, the output of which is connected to the third input of the switch, the fourth and fifth the inputs of which are connected respectively to the first and second outputs of the input unit, and the fourth inputs of which are connected respectively to the output form A call signal and the first output of the recording unit, the second output of which is connected to the first input of the power supply unit, the second output of which is connected to the sixth input of the switch, the seventh and eighth inputs of which are connected respectively to the output of the service code decoder and the first output of the control unit whose input connected to the first output of the recording unit, the second, third, fourth and fifth inputs of which are connected respectively to the fourth, fifth, sixth and seventh outputs of the control unit, the input of which is connected to the output the busy signal carrier, the second input of the code decoder usLug and the first fy to the input of the control signal generator of the switch, the second input of which is connected to the output of the time interval generator, the first, second and third outputs of the control unit are connected to the second, third and fourth inputs of the connection block, and the first and second inputs of the occupancy signal generator are connected to the first and second wires of the communication line, respectively. Kbtnd Yu From Iff GL Compiled by V. Panitsky Editor L. Gratilo Tekhred I. Popovich Corrector A. Tsko Order 5141/59 Circulation 624 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Phi2b V7