DE1026371B - Circuit arrangement in telecommunication systems, in particular telephone systems - Google Patents

Description

The invention relates to a circuit arrangement in telecommunication systems, in particular telephone systems, for storing and withdrawing series of pulses by means of a relay chain which can only be advanced in one direction and which consists of k relays whose simultaneous switching states up to q, corresponding to the number of pulses received , form different combinations from one another, where 3 <C k and q <C2 ^k ~ ¹ . Its purpose is to reduce the number of relays and the number of arms used to connect outer circles of the register to the relay chain on the receiver and on the transmission distributor compared to the known design and thereby make the circuit arrangement simpler and less prone to failure.

This object is achieved according to the invention in that the remaining chain relays are dependent on a chain relay that changes its switching state only once when receiving 2 p - 1 pulses, so that the switching state of the relay chain, which this starts from a certain initial state after the recording of η pulses, is transferred by the change of the switching state of this chain relay to the switching state that corresponds to the recording of 2p -η pulses from the same initial state, where 2ρ <* ς, 1 <^ n <± 2p and ηφρ .

The invention is described in more detail below with reference to the drawing. The drawing shows the circuit diagram of a relay chain according to the invention for pulse counting and the associated auxiliary circuit, which can be common to some relay chains in the implementation shown.

The drawing shows a cyclic relay chain for twelve impulses. After receiving the twelfth impulse, the chain returns to its retirement. When the twelfth pulse is received, a signal circuit is closed. In practice, the chain consisting of the relays A, B, C, D and E only receives pulse trains consisting of a maximum of ten pulses, so that the signal circuit that only responds to the twelfth pulse will receive one Impulse series cannot close. The relay chain is put into the complementary state between the first and second pulse reception. An auxiliary circuit is used for this purpose, which consists of a relay M and contacts x ¹ , x ² and y of relays X and Y ( not shown), whereby the original state of the chain, which indicates that η pulses were received, is changed to a new state, which corresponds to the number of 12 - η pulses, ie is converted into the complementary state to the highest possible number of twelve pulses. When the second pulse is received, the chain arrives at the reception of the circuit arrangement in telecommunication systems, in particular telephone systems

Applicant:

Hubert Rott, Pocäply, Berouna (Czechoslovakia)

Representative: Dipl.-Ing. A. Spreer, patent attorney, Göttingen, Groner Str. 35

Claimed priority: Czechoslovakia from November 9, 1954

Hubert Rott, Pocaply, Berouna (Czechoslovakia), has been named as the inventor

η-th pulse to the state corresponding to the twelfth pulse, and becomes the signal circle of the chain closed.

First, the action of the chain in receiving all twelve impulses is described, making all possible States of the chain become exhausted, and then the transformation of the state of the chain into the Complementary state explained by means of the auxiliary circle. In the further description are in agreement with the drawing relay windings with capital letters and relay contacts with corresponding ones small letters.

The relay chain is controlled when impulses are received by contact i of a relay (not shown) and works as follows:

At the beginning of the first pulse, contact i closes, and relay A speaks through its winding Al in the circuit

1. Battery, winding Al of relay A, contact b ¹ of relay B, contact i, earth

at.

At the end of the first pulse, the contact i opens, whereby the short circuit of the winding B 1 of the relay B is canceled, and the relay B responds in the circuit

2. Battery, winding Al of relay A, winding B1 of relay B, contact a ¹ of relay A, earth.

709 910/148.

At the beginning of the second pulse, the contact i is closed again, whereupon the circuit

3. Battery, winding A2 and contact a ² of relay A ₁ Contact b ¹ of relay B ₁ contact i, earth

is being built.

Since the winding A2 of the relay A is switched in such a way that it cancels the effect of the winding A 1, the relay A drops out, with the circuits 2 and 3 being interrupted.

However, the relay B does not drop out when circuit 2 is interrupted, since it remains in the circuit during the second pulse

4. Battery, winding 52 and contact b ¹ of relay B, contact i, earth.

When relay A drops out, the circuit is formed

5. Battery, winding of relay C _1, contact d ¹ of relay D _1, contact e ¹ of relay E, contact b ² of relay B, contact a ¹ of relay A, earth. relay A responds. As a result, the circuit 10 is interrupted and the relay C drops out. At the end of the fifth pulse, circuit 2, in which relay B responds, is closed by opening contact i .

At the beginning of the sixth pulse, circuits 3 and 4 are restored by closing contact i , which causes relay A to drop out. The relay B continues, however. At the end of the sixth pulse, the circuit 4 is interrupted by opening the contact i , and the relay B drops out. This · creates the circuit

11. Battery, winding El of relay E, contact α ⁴ of relay A ₁ contact b ^l of relay B, contact c ⁴ of relay C ₁ contact d ³ of relay D ₁ earth,

in which the relay E responds via its winding El , closed.

The relay E now remains in the circuit

The relay C responds in the circuit 5, and it continues through its contact c ¹ in the circuit

6. Battery, winding of relay C _1, contact d ¹ of relay D _1, contact e ¹ of relay E, contact c ¹ of relay C ₁ earth.

At the end of the second pulse the contact i is opened again, whereby the circuit 4, in which the relay B was held, is interrupted, and the relay B drops out.

At the beginning of the third pulse, circuit 1 is restored by closing contact i , and relay A responds. At the end of the third pulse, circuit 2 is restored by opening contact i. The relay B responds in circuit 2, and its contact b ³ closes the circuit

7. Battery, winding Dl of relay D _1, contact α ³ of relay A, contact b ³ of relay B, contact c ³ of relay C, contact e ² of relay E, earth

12. Battery, winding El of relay E, resistor R, contact e ^s , earth.

At the beginning of the seventh pulse, relay A in circuit 1 responds again and relay B in circuit 2 at the end of this pulse.

At the beginning of the eighth pulse, circuits 3 and 4 are closed, causing relay A to drop out, but relay B to continue. After the relay A drops out, the circuit 5, which has meanwhile been brought into the working position by moving the contacts d ¹ and e ¹ , is closed, and the relay C responds in this circuit and continues in circuit 6, which works in the same way how the circuit 5 was brought into the working position.

At the end of the eighth pulse, circuit 4 is interrupted, causing relay B to drop out.

At the beginning of the ninth pulse, circuit 1 is closed again, and relay A responds in this circuit. At the end of the ninth pulse, relay B in circuit 2 responds, whereupon the circuit

in which the relay D responds via its winding D 1.

After the response, the relay D remains in the circuit

8. Battery, winding D 1, contact d ² , earth.

When relay D responds, circuit 6 in which relay C was held is also interrupted. However, this relay does not drop out, because it now remains in the circuit

9. Battery, winding and contact c ² of relay C _1, contact b ² of relay B, contact c ¹ of relay C, earth.

. At the beginning of the fourth pulse, circuits 3 and 4 are restored by closing contact i , which causes relay A to drop out, but relay B continues to hold. At the end of the fourth pulse, after contact i has opened, circuit 4 is interrupted and relay B drops out. As a result, the circuit 9 is interrupted, but the relay C does not drop out, since it now remains in the circuit

10. Battery, winding and contact c ² of relay C ₁ Contact a ¹ of relay A, earth.

At the beginning of the fifth pulse, the circuit 1 is closed again by the contact i, and

13. Battery, winding D2, contact e ² of relay E, contact c ³ of relay C _1, contact b ³ of relay B, contact a ³ of relay A _1, contact d ² of relay D, earth

the winding D 2 of the relay D is closed.

Since the winding D 2 of the relay D is connected in such a way that it acts against the winding D 1 and cancels its effect, the relay D drops out and its contact d ² , which is common to the circuit 13 and the holding circuit 8, interrupts it Circuits. After the relay D has dropped out, the circuit 6, which has been changed as mentioned above and in which the relay C was kept, is also interrupted. However, this relay does not drop out, since the circuit 9 has closed in the meantime.

At the beginning of the tenth pulse, circuits 3 and 4 are closed again and relay A drops out again. At the end of the tenth pulse, relay B drops out again after circuit 4 has been interrupted. This interrupts the circuit 9 in which the relay C was held, but this relay does not drop out, but continues to hold in the circuit 10, which has since been closed.

At the beginning of the eleventh pulse, circuit 1, in which relay A responds, is closed again. As a result, the circuit 10, in which the relay C was held, interrupted, and this

Relay drops out. At the end of the eleventh pulse, relay B in circuit 2 responds.

At the beginning of the twelfth pulse, circuits 3 and 4 are closed again, causing relay A to drop out. After the relay A drops out, the signal circuit formed by the contacts α ⁵ , c ⁵ , d ^l , e * of the relays A, C, D, E is closed for the duration of the twelfth pulse until the relay E drops out. At the end of the twelfth pulse, the circuit 4 is interrupted again, the relay B drops out, whereupon the circuit of the relay E

14. Battery, winding E 2, contact ei ^{3 of} the relay /), contact c ⁴ of relay C, contact b ^l of relay B, contact α ⁴ of relay A, resistor R, contact e ^a of relay E, earth

closes.

Since the winding £ 2 of the relay acts against winding E 1 and cancels its effect, relay E drops out and its contact e ³ interrupts circuits 12 and 14. After relay E drops out, the signal circuit already described is also interrupted.

After the twelfth pulse, the chain returns to the rest position in which no relay is energized.

The conversion of the state of the relay chain into the complementary state takes place with the help of the auxiliary circuit between the first and second pulse reception, as will now be explained.

For example, assume that the chain received nine pulses. In the chain, relays A, B and E respond, which are held in circuits 2, 9 and 12. The relay chain works with five relays, i.e. k = 5. The number of received pulses is η = 9. The highest possible number of received pulses is q = 12. The constant number, which equals the highest possible number of received pulses, is 2p - 12 The auxiliary circuit works by closing the contacts x ¹ and x ^{2 of} a relay X ( not shown). In the assumed case, the circuit closes

15. Battery, winding of relay M, contact y, χ ¹ , α ⁴ , resistor R, contact e ^s , earth.

In this circuit, the relay M responds, which is in the circuit

16. Battery, winding and contact m ¹ of relay M, contact x ² , earth

continues.

After a certain time has elapsed after the contacts x ¹ and x ^{2 of} the relay X ( not shown) have closed, the contact y of the relay Y ( not shown) is also switched over. The relay M, which has since responded in the circuit 15 and remains in the circuit 16, now closes the winding El of the relay E briefly in the circuit through its contact m ²

17. Battery, contact m ² , v, x ¹ , a ^l , winding El, battery.

60

As a result of the short circuit of the holding winding El , the relay E drops out, and its contact e ³ interrupts the circuit 12 in which this relay was held. In order to avoid a short circuit between the battery and earth when the relay E drops by shorting its holding winding E 1, the resistor R in the holding circuit of the relay E is connected. After the relay E drops out, its contact e ² closes the circuit 7 in which the relay D responds. This causes the relay chain to enter the. State which corresponds to the reception of three pulses, ie the state in which the relays A, B, C and D hold. After the auxiliary circuit has been switched off, the chain can receive further pulses. If it receives nine impulses again, when it receives the ninth impulse it gets into the state which corresponds to the reception of the twelfth impulse (3 + 9 = 12), so that during this ninth impulse the signal generated by the contacts a ⁵ , c ⁵ , d *, e ^l formed signal circuit closes and indicates that the chain received the same number of pulses when receiving the second pulse as it was the first time, that is, nine pulses each time in the case under consideration. With this relay chain, for example, relay E changes its state only once when it receives eleven pulses, i.e. when η = 2 p - 1. By changing its state, relay E causes the relay chain to convert from the number η of received pulses (n = 9) corresponding states in the state corresponding to the number 2 p-η (= 3) of the received pulses.

It is now assumed that the chain has only received an impulse. In this relay chain, n = I; q = 12; k = 5 and 2p = 12. In this case, relays A and B respond in the chain. If the auxiliary circuit in which the contacts of the relays X and y work as described above comes into action, the circuit 15 is not closed after the contact x ¹ closes, since the contact e ^{3 of} the relay E, which is considered in State of the chain is de-energized, is not closed. As a result, relay M does not respond and the circuit closes when contact y is moved

18. Battery, winding El of relay E, contact α ⁴ , χ ¹ , y, Ot ² , earth,

in which the relay E responds.

After it has responded, relay E remains in circuit 12. As a result, the chain enters the state that corresponds to the reception of eleven pulses, with relays A, B, E being energized. After the auxiliary circuit has been switched off, the chain can receive further pulses. The signal circuit formed by the contacts a ⁵ , c ⁵ , d ⁴ , e ⁴ is in this case already closed with the first pulse, indicating that the chain has received the same number of pulses as before the change in state, ie in this case an impulse.

If the chain received two, three, four or five pulses when it was received for the first time, the will take place Conversion to the complementary state in a similar way as in the case of an impulse.

If the chain has received six pulses, the activity of the auxiliary circuit does not cause any change, since the corresponding circuits are interrupted by the idle contact α ⁴ or c ⁴ . Only relays D and E are energized in the chain. The safety circle is only closed again when the relay chain receives six pulses for the second time (6 + 6 = 12). In this relay chain, relay E changes its state only once, when it receives eleven pulses, i.e. when n = 2p - l, and thus causes the relay chain to convert from the state corresponding to the number η = 1 of the received pulses to that of the number 2p - 1 (= 11) state corresponding to the received pulses.

As is apparent from the above description, the relay chain according to the invention can perform the function a registration device when receiving and a control device when outputting pulse trains

Exercise in registers, telephone amplifiers, directors and other devices where it is necessary is e.g. B. to receive a series of pulses selected by the participant and after a certain Time to give up again. A particular advantage of the invention is that to control the Chain two conductors are sufficient, which connect the circuits of the chain with the circuits of the whole device connect - one for receiving the impulses that the chain should count, the second for the connection of the auxiliary circuit, which the state of the chain between the first and the second Impulse reception changes. If there are several chains in the device, which are designed to accommodate a serve larger, consecutive number of pulse trains, one for each pulse train Chain, you can easily connect the actuating circuits to the individual chains, e.g. B. by means of a Voter or a relay chain - a call distributor - what in the case of mastering the Relay chain would encounter certain difficulties through multiple conductors. The same auxiliary circle to change the state can be used for several sequentially working chains, since with In the given design, there is only one connecting conductor between the relay chain and the circuit mentioned by which the auxiliary circle only during a certain, for the change of the state the chain is connected to this chain for the necessary time.

Claims (6)

PATENT CLAIMS: 1.Circuit arrangement in telecommunication systems, especially telephone systems, for storing and withdrawing series of pulses by means of a relay chain which can only be advanced in one direction and which consists of k relays whose simultaneous switching states up to q, the number of pulses received, different combinations from one another form, where
and q <C 2 ^k - ^x , characterized in that the remaining chain relays are dependent on a chain relay (E) which changes its switching state only once when receiving 2 p - 1 pulses, so that the switching state of the relay chain is controlled by assumes a certain initial state based on the reception of η pulses, through the change in the switching state of this chain relay (E) is transferred to the switching state that corresponds to the recording of 2p - η pulses starting from the same initial state , where 2p ^ q, ί <^ n <^ 2p and n = j = p . 2. Circuit arrangement according to claim 1, characterized in that to change the State of the relay chain, an auxiliary circuit is provided for changing the state the necessary time of the relay chain can be connected to it. 3. Circuit arrangement according to claim 1, characterized in that the auxiliary circuit for several relay chains are common. 4. Circuit arrangement according to claim 2 and 3, characterized in that the auxiliary circuit through a single conductor is connected to the relay chain. 5. Circuit arrangement according to claim 1, characterized in that a signal circuit is provided that indicates when the number of messages received after the state of the relay chain changed Pulses equals the number of pulses received before this change. 6. Circuit arrangement according to claim 5, characterized in that the signal circuit is formed by contacts of the relays of the chain. Considered publications:
French patent specification No. 1 048 902. 1 sheet of drawings © 709-910 / 148 3.58