DE1003812B - Key counter with capacitor storage for telecommunications, especially telephone systems - Google Patents

Description

GERMAN

The invention relates to a key number transmitter for telecommunications, in particular telephone systems. It is already known for key number transmitters, depending on the switching order, a combination of four relays to control in different ways, which then carries out a corresponding identification of the switching order. With such encoders it is necessary that the identification of the switching order by the key. series is carried out until the switching order is picked up.

But there are also already known key number transmitters in which the switching order given by a row of keys is transmitted to capacitors via a distribution switchgear. This can be used to control the capacitors be done directly by the row of keys or by a relay combination. The capacitors serve as a memory so that tapping is possible at any point in time. Will be at this Key counter with capacitor storage according to the switching order via voltage divider Capacitors charged with different partial voltages and evaluated according to the partial voltage, for example, there may be grounds for incorrect choices because the charged capacitors reduce the partial voltage not maintained with certainty to the point of tapping. In addition, such numerators require with capacitor storage tapping devices for the stored capacitors, which as a result of the effort are uneconomical.

In order to avoid the disadvantages of the aforementioned key number transmitter, it is known through the switching order to load a capacitor combination and tap the capacitor combination through a relay combination which depends on the number of current impulses to be emitted in a series. Are in this case exposing the digits 1 to 10 to a series of impulses is currently a capacitor combination of four capacitors with a corresponding control unit for storing the series of current impulses and for tapping the Storage capacitors are four relays required, which then act on the facilities that the Mark the switching orders. The invention now aims to simplify the numerator, in which a capacitor combination is tapped by a relay combination. This is achieved according to the invention in that the determined by pressing a key, corresponding to a digit to be selected Switching order is transferred to a capacitor combination that is charged with different polarities and, depending on the load, a combination of polarized relays for digit identification in one or another position switches.

For such an arrangement, only one capacitor combination is required for the transmission of the digits 1 to 0, Key counter with

Capacitor storage for telecommunications,

in particular telephone systems

Applicant:
Siemens & Halske Aktiengesellschaft,

Berlin and Munich,
Munich 2, Wittelsbacherplatz 4

Rudolf Kraust, Munich,
has been named as the inventor

consisting of three capacitors for each surge series, required. For the loading and unloading route of this Only three-armed switching mechanisms are required for capacitors, which characterize each individual series of current impulses and tap.

An exemplary embodiment of the invention is shown in the drawing.

This is a key number transmitter in which a relay combination ^ 4, S, C and D is controlled via the row of keys T1 to TO, for which only normally open contacts are used, via the network of rectifiers GIl to G115. Relays A, B and C determine once which capacitor of the combination AC, BC and CC is to be charged, and relay D also determines the charging direction of the capacitors. The switching mechanism Wl adjusts itself to corresponding capacitors after marking several series of current impulses one after the other.

The switching mechanism W2 is provided for tapping the charged capacitors. A relay combination consisting of the relays A1, B1 and C1 is controlled via the charged capacitors and the switching arms a, b, c of the switching mechanism W 2 . The relays Al, Bl and Cl are polarized relays which, depending on the charge of the capacitors, move the contacts to one or the other working position. A group of control relays A 2, B 2, C 2 and D 2 is controlled by the relay combination Al, Bl ₁ Cl , which influence a contact pyramid for the switching mechanism 14 ^ 3. The switching mechanism W3 then picks up the contact pyramid and marks with the

609 838/143

3 4

Test relay P the termination of the current impulse emission switched to position 7. In position 7 comes for that and thus the number of current impulses sent by a relay P the following circuit is made up:

ST, for example, to send out the number 1, ⁶ ' f ^ e, ^ 2 29 «2 31 & 2, 33c2, switching mechanism if 3 in

Pressing the Tl button only energizes relay A. The 5 position 7, relay P, -.

Switching mechanism Wl is now in position 1. The relay P interrupts after seven switching steps,

there is the following charging path for the capacitor AC : i.e. after seven emitted current surges, the current

■ i , tj ο ! Υπ -a λ λγ · cj where abrupt transmission. After tapping, the switching

1. +, Id, 2a, ajWl in position 1, AC ₁ 6d, Wi2, -. _{wk W3} ^ _{eaer in the} basic position after relay P

After the charging circuit has been established, the switching io the discharging circuit of the capacitor AC at the contact Sp werk Wl is switched one step further and can transfer the holding circuit of the polarized relay A1 and the identification of the next series of impulses to the control relays Ώ2 and A2 on the contactless under the next capacitor combination . Is that broke.

Be derailleur WI placed in position 2, then target is the number 3 sent, so the key is in position 1. They then 15 T3 to press the gear W2. Relay A is established via button Γ3 and the rectifying switching arm α of switching mechanism W2 and winding I of ter Gl 3 and a discharge circuit is established via button Γ3 and relay A1. In this discharge rectifier G-Z4 the relay C is energized. There is now a circuit of the capacitor AC , the polarized relay A1 is more a charging circuit 1 for the capacitor AC: brought into a working position, ie, the contact 9 al. Furthermore, the capacitor CC is charged: is closed. This creates a holding circle of the 20th polarized relay A1 for this direction comes ^{about, and 7} * £ ^de '^' ^4c switch arm cjWl m position 1, CC, 6d, at the same time the control '

relay A2 switched on. The circuit runs over: For the transmission of the number T3, the condensate

oT-j η .. _TTr . _o Sators AC and CC loaded:

2. Earth, 9 «1, II Al (+), A2, 15p, Wi3, -. _{2g After} switching the switching mechanism Wl into the

Relay A 2 places its contacts in contact pyramid position 2, switching mechanism W 2 is in position 1.

mide in the work situation. The discharge circuit of the capacitor AC is connected via contact 18 a 2

Circuit in position 1 of the switching mechanism W3 vorbe- switching arm α of the switching mechanism W2 and the polarized

rode. After the relay A 2 has responded, the switching relay A 1 and the discharge circuit of the capacitor CC plant W 3 are set in motion. With each switching step of the 30 via switching arm c of the switching mechanism W2 and the polar-

Switching mechanism T'73 produces a current impulse on the inserted relay Cl. The polarized relays Al

transferring constituent voters. Reached the switchgear and Cl place the contacts in the upper working position. It

after a switching step the position 1, the contacts 9al and 13el are closed. Of the

Relay P energized: Holding circuit 2. of the polarized relay A1 is established. ο , -icjo λο o on JO oo ο c τ, ι * λ TT / Q · C ₄ ι ^{3S In} this the control relay A2 is also energized.

I ⁺ ' / I f ^a \ ^20b2 · ^22c2 ' ^{Switching mechanism W3 m Stel} - For the polarized relay Cl and the control relay C2

ment 1, relay P, -. _{will follow (} ier circuit established: The relay P interrupts the discharge at contact Bp

circuit of the capacitor AC. Circuit 2 for the ⁸ " ^earth · ^13c1 ' ^IIC1 (+)' ^C2 > ¹⁵ ^ ^Wt3 · ~ -

polarized relay Al and the control relay A2 is connected to 40. The control relays A2 and C2 place the contacts of the

Contact 15p open. The polarized relay Al and pyramid in the working position. Via contact 18 «2 and

the control relay A 2 are thus again in the rest position. 23c2 is the circuit via the pickup switching unit W3

The switching mechanism W3 runs in prepared mode without emitting a current surge.

the rest position. If the switching mechanism W3 starts, in position 3,

If the number 7 is to be sent, the T7 button 45 is the relay P after three current pulses have been sent

to press. Relays A and D are energized. That excites:

Relay A closes contact 2a again. The charge of the _ ", .., -," .. """","" ο ",,, ·,, _T "".

However, capacitor AC is now in the opposite ⁹ · f ^en> 16i2 18 * 2 2062, 23 _C 2, W 3 in derailleur

Direction instead, since the relay D is energized and via position 3, relay P, -.

Contact 7ä —Potential and via contact 5 d -) Poten- 50 The relay P terminates the current impulse transmission. The Ent-

tial is created. In this case, the charging circuit of the capacitor AC charging circuit of the capacitors AC and CC is opened via: takt8 />. At contact 15 p is the hold circuit

λ -π- λ cj Ar · / τι ™ · cm.-Ii λ ο Tj MtT-λ of the polarized relays A 1 and C1 and the excitation circuit

4. Earth, Sd, AC, afWl in position 1, 2a, 7d, W ₁ I, -. _the § _{tax relay} ^ _{2 and C2} interrupted.

If the switching mechanism Wl is from position 1 to position 2 55. If the number 9 is to be sent out, then the

switched on and the switching mechanism W2 in position 1 button Γ9 and rectifier GZlO relay A via

brought, so the switching mechanism W2 button Γ9 and rectifier C-ill of the relay C and via switching arm α

again a discharge circuit of the capacitor AC via the button Γ9 and rectifier Gl 13 energizes the relay D ,

polarized relay A1 closed. The polarized over contact 2a and switching arm α of the switching mechanism Wl

Relay Al places the contact in the second working position. The capacitor AC in the circuit 4 is charged. For

The following current is used for the relays Al, Ό2 and A2 - the capacitor CC is the following charging circuit:

10. Earth, 5d, CC, switch arm cjWl in position 1, 4c,

5. Earth, 10 «l, III Al (-), ID2, A2, 15p, WiZ, -. ld, WiI, -.

The polarized relay A1 is held in its working position 65 in the discharge circuit of the capacitors AC and CC and the control relays D 2 and A 2 are still energized. Switching arm α and c of the switching mechanism W2 are energized. The relays D2 and A2 actuate the contacts of the polarized relays Al and Cl. The contacts clock pyramid. About contact 17 d 2 and 29 '2 one of the two relay but be prepared to lower working position circuit for the Abgreifschaltwerk W3. brought. The circuit 5 of the switchgear W3 is set in motion via contact 10a 1. It gets up in 70 polarized relays Al and the control relays Ό2 and A2

manufactured. For the polarized relay Cl and the control relay C 2 consists of the following circuit:

11. Earth, 14cl, LTICl (-), C2, 15 ^>, Wi3, -.

Accordingly, the control relays A 2, D 2 and C 2 are energized. Via contacts 17d2, 29a2 and 34c2 the identification of the series of current impulses to be transmitted takes place. The rear derailleur W3 is set in motion. The circuit for relay P, which ends the current impulse transmission, is closed in position 9 of the switching mechanism W3 :

12. Earth, 17rf2, 29a2, 31 δ2, 34c2, switching mechanism W3 in position 9, relay P, -.

The relay P interrupts the discharge circuits of the capacitors AC and CC at the contact Sp. At the contact 15 ^ »the circuits 5 and 10 of the polarized relays Al and Cl and the control relays D2, A2 and C2 are opened.

If the digit 0 is to be sent, relay B is energized via contact TO and rectifier Gl 14 and relay D is energized via button TO and rectifier Gl 15. The following charging circuit exists for the BC capacitor:

13. +, 5rf, BC, switch arm b / Wl in position 1, 3δ, 7rf, WiI, -.

After the indexing of the derailleur Wl from position 1 to position 2 of the switching mechanism is in the position 1 W 2 of the discharge circuit of the capacitor BC via switching arm b of the switching mechanism and relay W2 Bl prepared. The polarized relay Bl places the contact in the lower position. A hold circuit for the polarized relay Bl is created by also energizing the control relays B2 and D2 :

14. Earth, 12δ1, III51 (-), 232, 52, 15p, Wi3, -.

The control relays B 2 and 232 switch the contacts of the pyramid. The circuit is prepared via the pickup switching unit W3 via contacts 17rf2 and 35δ2. If the switching mechanism W3 reaches position 0, the relay P is energized:

15. Earth, 17d2, 30a2, 35b2, switching mechanism W3 in position 0, relay P, -.

The relay P terminates the current impulse transmission after ten current surges and opens the discharge circuit of the capacitor BC at the contact Bp and the circuit 14 of the polarized relay 51 and the control relays 232 and 52 at the contact Bp. The switching mechanism W3 is in the rest position.

Claims (7)

Patent claims: 1. Key number transmitter with capacitor storage for telecommunications, in particular telephone systems, characterized in that the switching order determined by pressing a key, corresponding to a digit to be selected is transferred to a capacitor combination (AC, BC, CC) , which is charged with different polarities and depending on the charge a combination of polarized relays (Al, Bl, Cl) switches to one or the other position for the identification of numbers. 2. Key number transmitter according to claim 1, characterized in that the switching order determined by pressing a key is transmitted to the capacitor combination (AC, BC, CC) via a switching mechanism (Wl) characterizing the series of impulses. 3. Key number transmitter according to claim 1, characterized in that the capacitor combination (AC, BC, CC) chargeable with different polarities acts on the combination of polarized relays (^ 41, B1, Cl) via a tap switch mechanism (W2). 4. Key number transmitter according to claim 1, characterized in that a relay (A2, B2 or C2) or two relays (A2 / D2; B2JD2) of a relay combination (A2 - D2) to control the contact pyramid for control of the contact pyramid in the holding circuits of the combination of polarized relays the switching mechanism (W3), which taps off the number of impulses, can be controlled. 5. key number transmitter according to claim 4, characterized in that in the holding circuit of a polarized relay in a working position, a relay (A 2) for identifying a digit (1) and in the holding current of the second working position of the relay, the relay energized in the first working position (A2 ) and a second relay (D2) are energized, both of which identify a second digit (7). 6. key number transmitter according to claim 1, characterized in that a relay combination (A - C) is controlled via the keys, which determines the charge of the capacitor combination (AC, BC, CC) . 7. key counter according to claim 6, characterized in that a combination of four relays (A to D) is controlled via the keys, three of which (A, B, C) set the capacitor combinations to be charged (AC, BC, CC) and a relay (D) determines the direction of the charge. Considered publications:
German Patent Nos. 854 708, 911 741;
British Patent No. 398 812. 1 sheet of drawings © 609 838/143 2.57