SU1354440A1 - Arrangement for connecting telephone subscribers to one subscriber line - Google Patents

Abstract

The invention relates to communication technology and shortens the connection time of subscribers to a line. The device contains the first subscriber line state analyzer 1, the second subscriber line state analyzer 2, control unit 3, block 1 of the first subscriber, block 5 of the second subscriber, receiver 6 inductor call, blocks 7 and 8 delays. 2 Il. . P 00 ate 4 4 4 Fig.7

Description

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The invention relates to communication technology and can be used in automatic telephone networks.

The purpose of the invention is to reduce the time to connect subscribers to the subscriber line.

Fig. 1 shows an electrical block diagram of a device for connecting telephone subscribers to one unit to the initial state, the subscriber line; Fig. 2 is electrically. Similarly, when a micro-telestatic power source is removed. Accordingly, the signal from the first input of control unit 3 and the second input of block 5 of the second subscriber are removed, the contacts of which are closed and connect the second subscriber's line to the subscriber line (the second telephone abbreviation line is unblocked) and the control unit re-blocking device.

The device contains analyzer 1 of the state of the first subscriber line,; second line subscriber state analyzer 2, control unit 3, blocking block 4 of the first subscriber, block 5 blocking the second subscriber, receiver 6 inductor call, first 7 and second 8 delay blocks.

The control unit 3 contains the first 9, second 10, third 11, fourth 12 and fifth 13 elements AND, first 14, second 15, third 16 and quarter 17 triggers, first 18, second 19, third 20 and fourth 21 OR elements, inverter 22

To call the first subscriber, the subscriber is dialed once and waits for the subscriber to answer. To call the second subscriber dial the number, wait for one signal, control the call sprinkling, then press and release the telephone switch and, having heard the dial tone, again | Dial the same number and wait for the second subscriber to answer

When the first subscriber removes the handset, the direct current of the station battery is fed to the input of the first subscriber’s line state analyzer 1, which leads to

the second subscriber (the operation of the second subscriber line state analyzer 2 is similar to the first subscriber line state analyzer 1; the signal is output to the second input of control unit 3 and through the first OR 18 element goes to block 1 of the first subscriber (operation

20 block 4 blocking the first subscriber is similar to the operation of block 5 blocking the second subscriber), which disconnects the line of the first subscriber from the subscriber line. At the end of the conversation the second

25, the subscriber (the handset is placed on the lever switch) removes the signal from the second input of the control unit 3 and the line of the first subscriber is unlocked and the device

30 returns to the initial state.

When the first subscriber calls the inductor call signal from the subscriber line, it enters the input of the receiver 6 inductor call and connects the positive potential of the source pi

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tany to the code of the receiver 6 inductor call. After the end of the inductor call, after a time that exceeds the pause time between the outputs of the inductor call (4 s), the receiver of the inductor call returns to its initial state.

The signal from the output of the receiver 6 induk

the latent call arrives at the fifth on its first signal output, which is 45 OD of the control unit 3 and through the fourth one arrives at the first input of the unit 3 pack-. The twelve AND 12 element establishes the operations and through the second OR element the third trigger 16 goes to the state 1, 19 and is received. the second input of block 5 of blocking the second subscriber, which leads to disconnection of the line of the second subscriber from the subscriber line.

At the end of the conversation, the first subscriber (the telephone handset is placed on the lever switch)

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the signal from which is fed to the input of the first block 7 of the delay. In addition, through the first element OR 18 from the output of the control unit 13, the signal arrives at the second input of the block 5 of the block of the second subscriber. After 7 from the output of the first block 7 delay. a signal is output to the third input of the control unit 3, which through the first element-I 9 sets the second trigger 15 to the state 1, which leads to the output of the control signal

the current of the station battery from the input of the state line analyzer 1 of the first subscriber, from whose output a signal of positive potential is taken

walks back to its original state, Likewise, when a microhelf power source is removed. Accordingly, the signal from the first input of control unit 3 and the second input of block 5 of the second subscriber is removed, the contacts of which are closed and connect the line of the second subscriber to the subscriber line (the line of the second telephone abbreviation is unblocked) and the device of the overhaul tube by the second subscriber (the analyzer 2 neither the line of the second subscriber is similar to the operation of the analyzer 1; the state of the line of the first subscriber is given a signal at the second input of the control unit 3 and through the first OR 18 element goes to the block 4 of the first subscriber NTA (work

block 4 blocking the first subscriber is similar to block 5 blocking the second subscriber), which disconnects the line of the first subscriber from the subscriber line. At the end of the conversation the second

the subscriber (the handset is placed on the lever switch) the signal from the second input of the control unit 3 is removed and the line of the first subscriber is unlocked and the device

returns to the initial state.

When the first subscriber is called, the inductor call signal from the subscriber line arrives at the input of the inductor call receiver 6 and connects the positive potential of the power supply source.

tany to the code of the receiver 6 inductor call. At the end of the inductor call, after a time that exceeds the pause time between the outputs of the inductor call (4 s), the receiver of the inductor call returns to its original state.

The output signal from the receiver 6 of the inductor call arrives at the fifth OD of the control unit 3 and sets the third trigger 16 to the state 1 through the fourth AND element 12,

the signal from which is fed to the input of the first block 7 of the delay. In addition, through the first element OR 18 from the output of the control unit 13, the signal is fed to the second input of the block 5 of the block of the second subscriber. After 7 from the output of the first block 7 delay. a signal is output to the third input of the control unit 3, which through the first element-I 9 sets the second trigger 15 to the state 1, which results in the control signal

from the second element OR 19 to the second input of block 5 of blocking the second subscriber. Through the third element OR 20, the fifth element AND 13 and the third trigger 16, which is set to the state O, the blocking signal is removed from the block 4 of the block of the first subscriber and the inductive call from the subscriber

line through the block 4 blocking the first output of the first trigger 14 is issued

subscriber 4 and analyzer 1 the state of the first subscriber line 1 enters the first subscriber line.

When the first subscriber is picked up by the first subscriber, the second subscriber is blocked in the same way as the first subscriber line, and the second trigger 15, after the end of the inductor call signal from the inductor call receiver 6 to the fifth input of control unit 3, is set to O .

If the handset of the first subscriber is not removed (the subscriber is absent), then upon termination of the inductor -. A second call (the calling subscriber hangs up) the second trigger 15 through the inverter 22 is set to the state O and the device returns to the initial state.

When a second subscriber is called, the inductor call signal from the subscriber line arrives at the inductor call receiver 6, from the output of which is fed to the fifth input, control unit 3, where through the quarter element 12, it sets the third trigger 16 to state 1, the signal from which ( from the third output of control unit 3 enters the first element OR 18., from the first output of control unit 3 to block 4 of the first subscriber and through the second element OR 19 from the second output of control unit 3 to block 5 of the second subscriber.

Since after 7 seconds with the reception, I

Nick 6 of the inductor call does not receive a signal at the fifth input of control unit 3 (based on the second subscriber’s call algorithm, the number is redialled), the signal from the first delay unit 7 arriving at the third input of control unit 3 through the second element 10 sets the 15 and fourth 17 triggers to state 1. The signal from the output of the fourth trigger is taken from the fourth 15

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through the first element OR 18 with the first output of the control unit 3 to the block 4 of the first subscriber and through the third element OR 20 and the fifth elements AND 13 the third trigger 16, which is set to the state that leads to the removal of signals at the third output of the unit 3 controls, respectively, from the input of the first block 7 delay, removing the signal from the third input of the control block 3.

Upon repeated receipt of the inductor call during the shorter delay time of the second delay unit 258 (the operation of the second delay unit 8 is similar to that of the first delay unit 7), the signal from the inductor call receiver 6 goes to the fifth input of the control unit 3 and through the fourth OR element 21, the fourth trigger 17 is set to O, which results in the removal of the signal through the second element OR 19 (the second output of the control unit 3 from the block 5 of the second subscriber’s blocking and the inductor call from the subscriber line through the second subscriber blocking unit 5 and the second subscriber line state analyzer 2 to the second subscriber line, as well as signal removal from the fourth output control unit 3 from the second delay unit 8.

When the microtelephone tube is removed by the second subscriber, the first subscriber is blocked in the same way as the second subscriber, and the first trigger 14 through the inverter 12,. the third element And 11 is set to state O.

If the second telephone microphone is not removed, then by discontinuing the inductor call signal (the subscriber canceled) first trigger 14 through inverter 22, third element 11 is set to state O and the device returns to its original state. If for arem.

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the output of control unit 3 to the second delay unit 8, as well as through the first element OR 18 from the first output of control unit 3 to block 4 of the first subscriber 4 and through the second element OR 19 from the second output of control unit 3 to block 5 of the second subscriber and the signal from

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through the first element OR 18 from the first output of the control unit 3 to the block 4 of the first subscriber and through the third element OR 20 and the fifth element AND 13 the third trigger 16, which is set to the state that leads to the removal of signals at the third output of the control unit 3 respectively, from the input of the first block 7 of the delay; the signal is removed from the third input of the block 3 of the control.

When the inductor call is repeatedly received within a time shorter than the delay time of the second delay unit 5 8 (operation of the second delay unit 8 is similar to that of the first delay unit 7), the signal from the inductor call receiver 6 arrives at the fifth input of the control unit 3 and through the fourth element OR 21 set the fourth trigger 17 to the state O, which leads to the removal of the signal through the second element OR 19 (the second output of the control unit 3 from the block 5 of the second subscriber’s block and the inductor call from the subscriber line through block 5 of blocking the second subscriber and analyzer 2 of the state of the second subscriber's line to the second subscriber's line, as well as signal removal. from the fourth output of the control block 3 from the second block 8 of the delay.

When the handset is removed by the second subscriber, the first subscriber is blocked in the same way as when the subscriber line is occupied by the second subscriber, and the first trigger 14 through the inverter 12,. the third element And 11 is set to state O.

If the microphone of the second subscriber is not removed, then after the termination of the inductor call signal (the subscriber canceled) the first trigger 14 through the inverter 22, the third element And 11 is set to the state O and the device returns to its original state. If for arem.

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the inductor call is not received, the signal from the output of the second delay unit 8 is sent to the fourth input of the control unit 3 and through the fourth element 21 of the shch 21 sets the fourth trigger 17 to the state O, the inverse of which the signal through the third element And 11 sets the first trigger 14 to the state O and the device goes to. initial state.

Claims (1)

Claim 15 25 A device for connecting telephone subscribers to one subscriber line, comprising a first subscriber line condition analyzer, a second subscriber line condition analyzer, a control unit, the first and second inputs of which are connected respectively to the first outputs of the first and second subscriber line state analyzers, that, in order to reduce the time under switch the subscribers to the subscriber line; the block of the first subscriber and the block of the second subscriber are inserted, the inductor call receiver, the first and second delay blocks, the outputs of each of which are connected respectively to the third and fourth inputs of the control unit, the five inputs of which are connected to the output of the inductor receiver a call whose input is connected to the first input of the block of the first subscriber and the first input of the block of the second subscriber whose output is connected to the input of the analyzer of the line v The first subscriber, the input of the state analyzer of the first subscriber line is connected to the output of the block block of the first subscriber, the second input of which is connected to the first output of the control block, the second output of which is connected to the second input of the block of the second subscriber, the third and fourth outputs of the control block are connected respectively with the inputs of the first and second delay blocks. Editor M.Blanar ylg Compiled by A. Levitsk Tehred I., Popovich Proofreader L. Pilipenko Order 5716/56 Circulation 636 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