DE1016306B - Arrangement for in-phase classification in a pulse grid and / or for rectifying telegraphic characters - Google Patents

Description

GERMAN

The main patent relates to an arrangement for equalizing and / or in-phase filing of telegraph characters, in particular telex characters, into a pulse grid. When arranging according to the main patent is provided as an output circuit, a flip-flop that works with a transmission relay. The output flip-flop is controlled by a sample counter so that it depending on the polarity of the character to be scanned in one or the other position overturns or in one or other situation persists. The scanning counter itself is an electronic counting chain which, depending on a pulse pattern, is switched through repeatedly after being switched off from the start-up step of the Character has been started or prepared to start. In addition, in the arrangement according to the Main patent provided a monitoring counter that corresponds to the number of samples to be scanned Steps is designed and the phase folder (equalizer) stops again after running through. the The invention relates to a further development of the arrangement according to the main patent. According to the to using counting chains, so the scanning counter and the monitoring counter, through known magnetic counting chains replaced. Such counting chains consist of a plurality of magnetic cores with at least approximately rectangular hysteresis loop, which with the help of preferably two phase-shifted incremental pulses are switched through. The advantage of such Counting chain compared to a counting chain with discharge vessels, e.g. B. cold cathode tubes is in front of everyone Things in the fact that the cores are not subject to any wear and tear and that the counter itself less becomes voltage dependent, d. That is, the tolerances of the pulses used for switching on with respect to the amplitude of these pulses can scatter by a larger amount. You can also use Such counting chains a higher counting speed can be achieved, but this is an advantage for Usual phase folder, unless the equalizer directly for time division multiplex systems are to be built, initially without any practical significance.

The mode of operation of such counting chains is known per se. With reference to Fig. 1 of the drawing, which shows the hysteresis loop of a magnetic core with an approximately rectangular course, the mode of operation of such a counting chain is briefly explained: Each individual core of the counting chain is initially in its idle state at the lower remanence point a. It is initially magnetized by a trigger pulse derived from a starting circuit or from a core upstream of the chain in such a way that it tips over into the upper remanence point b . The him-to-arrangement
for correct phase classification

into a pulse grid and / or
for rectifying telegraphic characters

Addendum to patent 962 714

Applicant:
Siemens & Halske Aktiengesellschaft,

Berlin and Munich,
Munich 2, Witteisbacherplatz 2

Dipl.-Ing. Karlheinz Bochmann, Munich,
has been named as the inventor

The guided pulse of the incremental pulse now tilts the core, again back to the idle state. Here a pulse is generated in the output winding which positively saturates the next following core, so that this tips over into the upper remanence point. There is therefore only one in each chain Core in the working point (upper remanence point), while all other cores are at rest (lower Remanence point).

The phase folder (equalizer) according to the invention is explained using an example circuit which is shown in FIG. 2 of the drawing. 3 shows a pulse diagram for this purpose. Which consists of the magnetic cores Ml to M 12 magnetic counting chain (Abtastzähleinrichtung) is switched through by means of two further switching pulses P 1 and P2. The pulses of the incremental pulses are phase-shifted by 180 ° with respect to one another. Each individual core has an output winding which in any case serves to switch the next core in the row connected in the ring to the working state and from which a pulse for switching through the monitoring counting chain is derived if necessary. Since a total of seven steps are to be scanned, the monitoring counting chain itself consists of magnetic cores L 1 to L 13. The bistable flip-flop circuit consisting of tubes T and Z can be switched over from every second core of this counting chain. The switchover itself is there-

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of dependent, in which position the anchor he of the contact relay JSi? lies.

The phase folder according to the invention now operates as follows: At a fixed irrespective of the existing of the two further switching pulses Pl and P2 pulse raster time, the receiving relays ER is supplied via terminals a, b folded over at the beginning of a start-up step. At the same time, the magnetic core M, the one with which the transmitter relay excites

switched through until the core M 12 and then the core Ml is remagnetized. When the core M 12 is reversed from the working state to the idle state, a pulse is again sent to the monitoring counter, which is thus also incremented by one core, that is, the core L2 of this counter is now returned to the idle state and the core L. 3 transferred to the working state. at

Current is concatenated, switched. In this case, the monitoring counting device is also happy with this forwarding in the winding ze / II and wants this Kernes device, no pulse is sent to the output circuit induced an impulse. The one to be removed over the winding Impulse flows through the winding arI des

Core Ll and the winding ze; IV of the core Ml.

Impulse given to the output trigger circuit, which is fed to the tube T or Z, depending on which of the two tubes is given via the.

Only when in the renewed rotation of the scanning counter a pulse from the core M 6

This pulse causes these cores to be switched to the work position (upper remanence point), which is output to the monitoring counter. When the core L3 is reversed, the pulse coming from the winding w III of the core M becomes that from the tubes A and B.
existing monitoring toggle switch relocated,
that is, after at rest, the tube 20 conductively B anchor it, depending on the nature of the polarity of the empfanwar, the tube A will now be ignited, wherein a character genes is prepared.

Voltage gradient at the voltage divider of the anode In the manner described, each symbol is now

of tube A scanned for ground via the grid of tube B. The monitoring counter is running and tube B goes out. Since the tube goes through one direction, namely until the core L 13 anode current is transferred to the working state via the winding III of the magnet 25. Is now obtained at core M , whereby the winding sense of this one pulse output of the core M 6 of this core L13 winding is selected so that the core is strongly nega- then the change of polarity within the receiving circuit containing the receiving circuit 13 and the capacitor C the monitoring flip-flop relay is no longer switched back via the line rem, ie the tube B will be magnetized. The core M is namely when ignited, and the tube A goes out. Since the anode of each scanning of the telegraphic character only emits a single pulse at the beginning of the tube B via a pre-magnetization winding of the start-up step, since the core MS is controlled, the scanning counting can, as will be explained later, during the entire device, although the incremental pulses are continuously scanning the tube A burns and are only further available at 35, only up to this end of the scanning process, so after the scanning core M 8 are switched through, since now at

Passing the tube B this core is so strongly premagnetized that this core is kept in the quiescent state.

When the tubes go out, the preparatory core M can in turn be remagnetized when a start-up step occurs again. This then starts the phase folder again. Fig. 3 shows the individual processes in one

ren remanence point to the lower remanence point 45 pulse schedule. In the first two lines, the line output pulse is induced, which shows the rectifier pulse of the incremental pulses P1 and P 2, which can pass through Gl and magnetizes core M2 . Line 3 shows a teletype character which is to be put into the pulse raster formed by the next two incremental pulses when the next one of the incremental pulses occurs. When the start-up idle state occurs, the tube A is ignited (see line 5), the magnetic core M 3 is switched to the working state. while tube B goes out (see line 6). In the case of the up-The scanning counter is run through in this way until the start-up step occurs from the core M in to the core M 6. As soon as the core M 6 emits a single pulse, which is tilted back into the rest position both on the core by a corresponding pulse of the progressive Ml and on the core Ll (cf. lines 7 and 20) active pulse P2, becomes 55 sam. As a result, the scanning counting device, via the rectifier GIl, the core M 7, which consists of the cores Ml to M 12, is started, and via the rectifier G13 the core L1 and the cores switch through one after the other, with the rest position tilted back here the core L 2 occurs in a negative and positive impulse: brought the working position. The output pulse of the only one of these pulses is passed through the mutual core L1 acts on the output trigger circuit via 60 connection via rectifiers and resistors to the rectifier G31; since in this case the armature (Gl, G2, Rl, G 3, GA, R2, etc.) to the next core he (. transmitted arrival running step in returning the core M6) of the receiving relay ER in the left hand side is, the Tube T of the bistable idle state, a pulse is then sent to the core Ll flip-flop circuit T, Z ignited and the tube Z goes out. passed on. This core L1 in turn gives the same-through the armature of this relay a pulse is then passed on to the core L2 over the 65 timely and a start-up step to the terminals c, d , namely phase tube T of the output flip-flop circuit, correctly. If the core iW12 is reset, the

The scan counting chain is now without the monitoring counter from the core L 2 to the on the monitoring counter or the off core L 3 is switched on without the output toggle switch at first something changes, 70 circuit is somehow affected. That from

of the seventh step (disconnection step), the tube B is re-ignited and the monitoring flip-flop returns to the rest position.

After the core M1 has now been switched to the working state, the next pulse of the incremental pulse P1 can remagnetize the core M1 via the winding w II. As a result, in its starting winding for the tilting back of this core from the upper

The corrected and in-phase characters emitted by the transmitter relay SR are shown in line 35.

In contrast to line 3, line 4 shows a distorted telex, as can be received, for example, by the receiving relay ER. As can be seen from the pulse diagram, a character distorted in this way is also corrected and classified in the correct phase.

The circuit arrangement according to the invention can be modified in various ways. In particular, it is possible to also supply the output pulses of the core M 6 to the output circuit directly parallel to the monitoring counter. In this case, only decoupling members need to be provided. In addition, the equalized and phase-classified character can of course also be removed from the output trigger circuit in other ways, that is to say without the use of a mechanical relay. As is known, this is easily possible on one of the anode lines of the tubes T or Z, depending on the desired polarity. The input circuit and thus the start of the counting chains can also be implemented in a different way, that is, each of the two counting chains can be started easily with the help of a further relay or pulse-shaping element (differentiating element) connected in series with the receiving relay ER.

Claims (8)

Patent claims: 1. Arrangement for in-phase classification in a pulse grid and / or for equalizing from the same length of character elements in always the same number of existing telegraphic characters an output flip-flop that passes on the characters to be ordered or rectified Transmitter relay controls, and with two counters, one of which (scanning counter) for Sampling time the second counter (monitoring counter) and the output flip-flop controls, according to patent 962 714, characterized by the use of known ones magnetic counting chains both as a scanning counter and as a monitoring counter. 2. Arrangement according to claim 1, characterized in that a magnetic core (M) is provided in a starting circuit, which is linked to the input circuit, the output pulse which is induced in the output winding when the start-up step occurs, used to start the two counters is, wherein the starter circuit with a monitoring circuit, namely a bistable flip-flop circuit formed with two tubes (A, B) cooperates in such a way that an output pulse occurs only at the first change. 3. Arrangement according to claim 2, characterized in that from the bistable trigger circuit the scan counting chain is then stopped when it has assumed its idle state. 4. Arrangement according to claim 3, characterized in that the anode circuit of the tube (B), which is conductive in the idle state, of the flip-flop circuit via a suitable magnetic core (M 8) of the scanning counter, in which the counting process is to be interrupted, is guided in such a way that this core is so strongly premagnetized that an output pulse from the previous core (M 7) can no longer trigger a change in the magnetic state of this core (M 8). 5. Arrangement according to claim 2 to 4, characterized in that the bistable trigger circuit depending on the tilting back of the last magnetic core of the monitoring counter into the Hibernation is controlled. 6. Arrangement according to claim 1 to 5, characterized in that the output trigger circuit is prepared via the contact (s) of the receiving relay. 7. Arrangement according to claim 1 to 6, characterized in that within the monitoring counter two magnetic cores are assigned to each character element of the telegraphic character to be classified or rectified. 8. Arrangement according to claim 7, characterized in that the scanning counter dimensioned so is that it is run through once during the duration of a drawing element and that from two different cores the control pulses for the control of the monitoring counting chain be derived. 1 sheet of drawings 1 709 693/145 9.57