SU536618A2 - Automatic calling device on static elements - Google Patents

Description

The invention relates to automation and impulse technology and can be used to automatically form pulse sequences / call a subscriber via wired communication channels.

Ylo auth. St. LL 439940, an automatic ringing device on static elements is known, which contains a trigger controlled clock generator, a distribution circuit, a pulse pattern restriction matrix with signed cells, an iconic cell switch, a reset circuit, a coincidence circuit, an assembly circuit combining the outputs of sign cells, a second circuit reset, delay circuit, amplifier, loaded on the line, one-button dialer with switches connected by contact pairs to the outputs of the sign cells and to the outputs of the comm Tatorey iconic cells and multibutton dialer with the switches on the contact pairs.

However, in the known device, the re-dialing of a subscriber number when the line is busy takes considerable time, which increases the duration of entry into the connection.

The purpose of the invention is to increase the speed of re-dialing the subscriber number when the line is busy.

To do this, in a well-known automatic ringing device on static elements, a -block line registration block and a multivibrator are introduced, the output of which is connected to the start-up input of the clock generator via the OR element, the input of the block of the recording of the line block is connected to the line, and the output element OR - to the stop input of the clock generator.

The iHa drawing shows a structural diagram of the proposed automatic calling device.

The automatic ringing device on static elements contains a clock generator 1, controlled by trigger 2, distribution circuit 3, matrix 4 of pulse sequence constraints with sign cells 5-8, switch of sign cells 9, reset circuit 10, coincidence circuit 11, assembly circuit 12, merging the outputs of the iconic cells, the second reset circuit 13, the delay circuit 14, the amplifier 15, loaded on line 16, one-button dialer 17 with switches 18, 19, connected by contact pairs 20-24 and 25-2-9, respectively, to outputs 3 There are 30 cells with switches 31-34 on contact pairs 35-36, 37-38, 39-40 and 41-42, the outputs 43-46 of the switch of sign cells, outputs 47-50 a distribution circuit, a multivibrator 51 with a button 52 connecting it to a power source, elements OR 53, 54, and a block 55 for registering a line occupancy. The output of the multivibrator 5 / through the element OR 53 is connected to the starting input of the clock generator /. The input of the registration unit 55 is occupied by the line. It is connected to line 16, and the output through the OR 54 element is connected to the stop input of the clock generator /.

The work of the proposed automatic ringing device occurs as in the well-known device, the interaction of the newly introduced blocks with the nodes of the known device is as follows.

By pressing one of the buttons of the one-button dialer 17, the subscriber number is selected. If the line is busy, the handset is returned to its original position, after which button 52 turns on the power of the multivibrator 51, the period of operation of which is about two minutes (the period can be adjusted). After, for example, the 105th second has elapsed, the multivibrator switches and, through the element OR 53, acts on the starting input of the clock generator 1, it repeats the dialing of the subscriber number, which takes no more than 10 seconds. During the time remaining until the multivibrator returns to the initial state, signals are analyzed in a line by their duration by a line occupancy detection unit 55, which produces an impulse only when continuous signals appear free in line 16.

If such an impulse arises, it, acting through the element OR 54 on the stop input of the clock generator, translates it into the initial state. At the same time, the block 55 for registering the line flow gives an audible signal indicating that the subscriber's line is free.

If the line is busy, the block 55 for registering the line is not generating a pulse. In this case, the lv.v. switch will switch to a non-floating state and a pause of 105 seconds will follow, after which the dialing process and

the process of determining line occupancy is repeated.

Thus, in the proposed device, the process of redialing the subscriber number in the event of a busy person is automated and the time for entering communication is reduced.

Claims (1)

Invention Formula Automatic calling device on static elements according to the author. St. No. 439940, characterized in that, in order to increase the speed of re-dialing the subscriber number when the line is busy, a block is added to register the line busy and a multivibrator, the output of which is connected to the start input of the clock generator through the OR element, while the line is connected to the line, and the output through the OR element is connected to the stop input of the clock generator.