SU510807A1 - Device for automatically encoding answer phone calls - Google Patents

Description

one

The invention relates to telephony and can be used in a subscriber network of automatic telephone stations for an automatic coded response containing the time (date of the current month, hour) of the called subscriber to the calling subscriber.

A device for automatically encoding a response to telephone calls, comprising a subscriber line, a generator unit, and a coded information setting unit, are known.

However, the known device is characterized by unproductive occupation of PBX devices.

In order to eliminate unproductive employment of PBX devices, a signal converter, a counter and an executive unit are inserted into the proposed device, the inputs of the signal converter are connected to the subscriber line, and the output is connected to an executive unit through the counter and the installation unit of coded information, the other input of which is connected to the generator unit, and the outputs are connected to the subscriber line and the meter.

The drawing shows the electrical structure of the device.

A device for automatically encoding a response to telephone calls comprises

signal transducer 1 connected in series, counter 2, coded information installation unit 3 and execution unit 4, the other input of which is connected to the generator unit 5, one output to counter 2, the others to subscriber line 6, to which the signal converter inputs are also connected.

The device works as follows.

In block 3 of the coded information setup, the date of the current month and the hour of presence of the subscriber is set. The automatic telephone station call signal goes to the signal converter input, where it is converted into a direct current package, from its output, the direct current signal signal goes to counter 2, which records the first automatic call station call as a subscriber call and activates the unit 3

From the output of counter 2, the direct current signal enters unit 3, which contains a time relay, which, depending on the set date of the current month, corresponding to the number of calls sent to the automatic telephone exchange, keeps the executive unit 4 in the initial state. The caller reads the number of calls that correspond to the date of the current month of presence of the called party.

With the receipt of the last call signal, unit 3 brings into operation the execution unit 4, which closes the subscriber line loop for some time, simulating the called subscriber's response signal, and causes the generating unit 5 to become operational, while the counter 2 is reset call with the fact of the call of the called subscriber.

The generator unit 5 transmits through the execution unit 4 to the subscriber line 6 sets of signals, the number of which corresponds to the hour of the callee’s presence. The caller counts these signals. Signals of the generating unit 5 for the difference from the call signals of the automatic telephone station are transmitted to line 6 with a pulse duty cycle twice as large as the duty cycle of the call signals when the frequency of the call signals is equal to the frequency of the signals of the generating unit 5. The number of signals of the generating unit 5 corresponds to the set hour in block 3. After the end of the last signal of the generating unit 5 in the subscriber line 6

unit 3 initializes executive unit 4 and generating unit 5.

Thus, the device for automatically coded answering phone calls is ready for the subsequent auto coded answering phone calls.

Claims (1)

Invention Formula A device for automatically encoding a telephone call response containing a subscriber line, a generator unit and a coded information setting unit, characterized in that, in order to eliminate the overhead of ATC devices, a signal converter, a counter and an execution unit are input, while the inputs of the signal converter are connected. to the subscriber line, and the output through the counter and the coded information installation unit is connected to the executive unit, the other input of which is connected to the generating unit, and Exit connected to the subscriber line and the meter.