SU97776A1 - Caller ID Device - Google Patents

Description

The invention relates to devices determining the subscriber number of a city automatic telephone exchange (PBX).

In the known systems, the transfer of the characters of the caller's number to the fixing device occurs sequentially with a shift in time, as a result of which the process of printing the number takes a long period.

The proposed device allows shortening the printing time of a number by simultaneously transmitting all the numbers of the caller.

For this purpose, a relay is included in the subscriber set of the calling subscriber, containing the number of contacts per closure equal to the number of characters of the designated number. Combinations of pulses corresponding to individual number signs are transmitted simultaneously to a fixing receiver of pulses along a bundle of wires, the number of which is also equal to the number of characters of the number being defined.

The drawing shows a skeleton scheme for switching on a device for printing labels at an automatic long-distance telephone communication, which shows: an AB subscriber unit, a regional telephone exchange, a trunk connection line and a long-distance telephone exchange station MTS. The structure of the PBX includes t - the first subscriber predictor SHI, the first group finder 1GI, the capacitor C, the additional relay P with contacts a, b, c, d and the general station impuls sensor D ". The MTS long-distance telephone station is equipped with a Yaa pulse receiver, an RSL trunk connection relay kit, an intercity HMI group finder, and a label printing device A.

Pulse sensor D and pulse receiver Pi are interconnected by a bundle of wires, the number of which is equal to the number of characters in the subscriber number.

The caller number is determined as follows.

In order to establish a long-distance connection with a subscriber from another city, the AB subscriber of the district telephone exchange dials the first digit of the called subscriber's long-distance number, resulting in the caller

The subscriber, via the 1PI and 1GI devices, is connected via an idle connection to the RSL kit, from which he receives a long-distance MTS ready signal. After receiving the station readiness signal, the caller dials the subsequent digits of the called party number. Under the action of the dialing pulses of the called subscriber simultaneously with the work of long-distance group searchers ROME and other searchers (not shown in the diagram), the device A also works, fixing the called subscriber number.

After the call is connected and the called party answers, the A number of the calling subscriber is printed. In the RSL kit, a relay is triggered (not shown), which, on the one hand, connects this RSL kit to the impulse receiver I and, on the other hand, creates a sending circuit along the trunk line of the code signal to start determining the caller's number.

From sending this signal to the first group finder GI, a relay is triggered (not shown), which, through capacitor C, turns on the relay P of the subscriber set. The relay P with its contacts a, b, c and d creates in the pulse sensor Di a circuit of the latching relays (not shown in the diagram). Contact and relay P creates a circuit of the fixing relay of the figure thousand thousand, o - hundreds, in - ten of the - defined subscriber number units. After fixing the caller's number, Di sensor simultaneously transmits pulses to receiver Pi through a bundle of wires. From the receiver P, the pulses are sent through the RSL kit to the printing apparatus A, which commits the caller's number.

Subject invention

Claims (2)

1. A device for determining a caller's number from a relay in a subscriber set that transmits current pulses from the first group searcher and with a common station determining device, characterized in that, in order to increase the utilization of the common station by simultaneously transmitting all digits of the number to it an incoming subscriber, a relay is included in the subscriber set, supplied with contacts for short circuit by the number of digits of the identifiable number. 2. The device according to claim 1, which is so that, for the simultaneous transmission and subsequent fixation of all digits of the number, the outgoing and incoming parts of the general station monitoring device are interconnected by the number of wires, the number of digits in the designated number.