DE2361838A1 - LOGICAL CIRCUIT WITH MAGNETIC CYLINDER DOMAINS - Google Patents

Description

DR. BERG DIPL.-ING. STAfF DIPL.-ING. SCHWABE DR. DR. SANDMAIR

PATENTANWÄLTE 8 MÜNCHEN 86, POSTFACH 86 02 45

Dr. Berg Dipl.-Ing. Stapf, 8 Munich 86, P. O. Box 86 02

Your sign
Your ref.

Our sign 2k Our ref.

8 MUNICH 80 Mauerkircherstraße

Attorney file 24 622

December 12, 1973

Monsanto Company
StoLouis, Missouri / USA

Logical circuit with magnetic cylinder domains

Di © invention relates to a logic circuit with magnetic cylinder domain "(in the literature as domains," magnetic bubbles ", magnetic Blasera _s always referred to as magnetic bswo only as Zylinderdomäraen, should be making all of the foregoing terms includes) and, more particularly logical © SchalturagsaiaordairageEi, in which facilities with magnetic bin-wall cylinder

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VII / XX / ha

(0811) 98 82 72 Telegrams: BERGSTAPFPATENT Munich

98 70 43 TELEX: 05 24 560 BERG d

98 33 10

Banks: Bayerische Vereinsbank Munich 453 Hypo-Bank Munich 389 2623 Post check Munich 653 43 -808

manen are used.

The constant development in the field of magnetic cylinder domain technology has now reached a point where this technology is widely applicable to various data processing operations. The general interest in the technology of the magnetic cylinder domains is mainly a consequence of the very high, achievable bit packing density, the low energy consumption and the operational reliability of inexpensive large storage media.
The technology of the magnetic cylinder domains includes the generation and the transport or the propagation of individual magnetic mandrels in specially prepared,
magnetic materials. When applying a static, homogeneous, magnetic bias field, which runs orthogonally to a plate or a layer of magnetic material with a corresponding, uniaxial anisotropy,
pull or shrink the normally blown
or meandering patterns of magnetic domains too
short cylindrical shapes, so-called cylinder domains, whose common polarity is generally that of the
Bias field is opposite. The cylinder domains repel each other and a magnetic field in the
Level of the platelet or the layer are moved or transported.

There are now manipulation patterns for transporting

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of the cylindrical domains along the plate or the layer on predetermined tracks or channels «A transport system includes Permaloy circuit elements that are shaped like stripes or "chevrons" on uniforms and that are shown in FIG a thin layer over the platelet or the layer of magnetic material spaced from one another and butted against one another Ends are arranged »The driver or transport field rotates constantly in the plane of the tile or of the layer, so that every angle acts as a small magnet, the poles of which are constantly changing. When the driver box rotated becomes a cylinder domain at one of the angles along the angular path from one point to another corresponding to the magnetic attraction to the nearest temporary pole of attraction the circuit elements moved or transported. This system is generally called a "rotating field" Influenceable ("field-acces") system called, da it differs from other systems where over Conductor loops arranged on the magnetic plate or the magnetic layer are used.

The use of magnetic cylinder domains in data processing is based on the fact that the Zyliraderdoiaänen along their orbits with a precisely determinable speed can be transported, so that uniform data flows from magnetic cylinder domains are possible in which the presence or absence of a cylinder domain indicates a binary "1" or "0". The use

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generation of magnetic cylinder domains to carry out logical information is based on the fact that closely adjacent arranged, magnetic cylinder domains * repel each other. If therefore alternating paths with changing preferred straight lines or directions in the one made up of angles Circuit can be formed, the direction which a cylinder domain ultimately takes on a web can be determined by the Presence or absence of a cylinder domain on another, closely spaced path can be influenced.

Apart from the possibility of creating a logic with the help of magnetic domains, there is another aspect given the impetus for the development of a logic in the technology of the magnetic cylinder domains. Originally were namely the magnetic cylinder domains for large spits intended; however, very great difficulties in reading out have arisen here. There are optical devices which exploit the Faraday effect, as well as magnetostrictive devices have been used; there are, however no satisfactory results have been obtained. It is therefore important that read-out be reduced to a minimum as is possible by incorporating logic into the memory so that the magnetic cylinder domains representing the information can be logically influenced before a readout is required in order in this way to determine the quality or the information content of each read-out bit

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enlarge.

In the patent application P 23 k2 859.3 (US-SN 283 267 - attorney's files 24 l84) the expression "conserving" or non-volatile (conservative) is explained in comparison to "not conserving" (non-conservative) logical cylinder domain links; Furthermore, all possible functions of maintaining, logical cylinder-domain logic circuits with three inputs and three outputs (3-3) logic circuits) are described. A considerable part of the aforementioned patent application is described in the "proceedings" of September 19, 1972 relating to a conference in Wescon in an article entitled "Logical circuit with magnetic cylinder domains" by R.CMinnick and other authors.

In these publications are simple embodiments for each of the 3I different classes of logical, Functions performed with the 3-3 circuits mentioned are described and special symbols for logical circuits introduced with cylindrical domains »This symbolism as well as the complete list of the various logical Functions and the special execution forms is also contained in the aforementioned patent application »The in The symbols used in the present application correspond completely and entirely to those used in the aforementioned patent application Symbolism = To therefore an unnecessary and superfluous

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Avoiding repetition is the development and determination of the symbolism already described, as well as the logical Circuits no longer included in the present application, which deals more with the special, new circuits are.

However, flip-flop circuits with magnetic cylinder domains have already been described above. For example are circuits with a rotating or an "idling" cylinder domain in the following publications reproduced: "Transport of cylindrical, magnetic domains in Orthoferriten" by Perneski in the IEEE Transactions on Magnetics of September 1969 »page 5 ^ 5; "Resident-Bubble Cellular Logic Using Magnetic Domains" by Garey in IEEE Transactions on Computers, April 1972, p 392; "Seld-Access Bubble Logic Operations" by Carlson et al. in Intermag Conference Proceedings, 1973 and in US Pat. No. 3,638,208. In this US Pat. there is also a trigger or control flip-flop described. A write decoder with magnetic cylinder domains is in an article entitled "A SiIf-Contained Magnetic Bubble Domain Memory Chip "by Chang in the IEEE Transactions on Magnetics, Volume MAG-8, No. 2 dated June 1972, page 2l4.

With the invention, the existing logic circuits with cylinder domains are to be essentially by means of special circuits for different types of data processing sub-systems

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men can be added. In particular, resettable and adjustable flip-flops as well as trigger or »control flip-flops, so-called RuS and T flip-flops reproduced, which are based on circuits of the mentioned "} 1 classes of preserving or non-volatile, logical cylinder domain logic circuits with three inputs and three outputs = In one embodiment, an RS flip-flop is created from a logic circuit which is referred to in the above-mentioned publication on the Wescon conference as a class 9 circuit "For a flip-flop In flop mode, one of the outputs of the class 9 circuit is connected to one of its inputs via a 1-bit memory loop Itfescon are based on the generation of output signals which correspond to the logic equation for the RS flip-flop T flip-flops, which are based on a class 9 circuit, are also described. Furthermore, circuits that fall into other classes, which are described in the publication on the conference in Wescon, can be used and proposed for T flip-flops. *from

A logical decoder with magnetic cylinder domains, which is based on a number of 3-3 shifts that are described in the publication via the conference in Wescon as a circuit

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gen of class 21 generates all possible product permutations from combinations of a number of parallels Input variables using a single cylinder domain generator. A planar logical decoder with cylinder domains for two variables, which one on class 21 circuitry creates all possible permutations of two variables without any cylinder domain orbits intersect.

A planar, logical circuit with cylinder domains with crossing points, which are partly based on a class 21 circuit design, receives two inputs Changeable and creates exits on opposite paths on which each of the adjacent to the entrance Variables are reproduced only, namely their product (the AND function) and the inverted or reversed Product (the NAND function). With the term "planar" denotes the lack of overlap of cylindrical domain orbits.

The planar decoder for two variables and planar Circuits with crossing points are combined into a more planar decoder for four variables. The circuits with crosspoints are arranged in a matrix, with the AND output of each crosspoint circuit being one which represents decomposition products. A pair of decoders for two variables form the horizontal and vertical

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len inputs to the matrix of circuits with crossing points.

The invention thus creates logic circuits with magnetic cylinder domains, with which the functions of various Forms of flip-flops and DekoMierern are executable. Adjustable and trigger flip-flops are available constructed from specially constructed, preserved, logical 3 ~ 3 circuits with cylinder domains «Two embodiments of Qreier-type decoders in which intersections of cylinder domain trajectories are used are for generation of all possible product permutations of a multitude of input variables are shown »Planar decoders and circuits with crossing points without overlapping combined in matrix form to create a decoder for a multitude of variables without internal overlaps to create ο

The invention is described below on the basis of preferred embodiments explained in detail with reference to the accompanying drawings. Show it:

Figol is a schematic representation of an R-S flip-flop circuit with cylindrical domains;

2 shows a schematic representation of a T-flip-flop circuit with cylindrical domains;

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3 shows a schematic representation of a decoding circuit with cylindrical domains for four variables;

Fxg.k a schematic representation of a further decoding circuit with cylinder domains for four variables;

5 shows a schematic representation of a planar decoding circuit with cylinder domains for two variables;

6 is a schematic representation of a planar cylinder domain circuit with crossing points; and

7 is a block diagram of a planar decoder for four variables in which the circuits of FIGS. 5 and 6 are divided.

The symbols used in Fig.l to 6 are based on the in the publication about the conference in Wescon and in of the aforementioned patent application described symbols. Accordingly, the structure becomes that illustrated in these figures Cylinder domain circuits understandable from the circuit diagrams shown.

The circuits described here are not necessarily limited to any type of arrangements or devices limited with magnetic cylinder domains. The word "Cylinder" ("bubble"), as it is in the present case

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Spelling is used excludes any type before magnetic Single wall domains, i.e. domains with an outer interface which is self-contained. The type of cylinder domain transport is important for the execution and operation of the logic circuits described below. The invention is also not applicable to angular circuit elements nor to that which can be influenced by a rotating field Circuit elements, although it is a decided advantage to use individual circuit elements which similar to angular posture elements, very tight can be packed. Since the usability of the magnetic cylinder domains in contrast to pure storage, where only the presence and absence of cylinder domains matter, mainly the repulsion forces between individual cylinder domains is the present one Restriction atf manipulation patterns in which the transport paths for the cylinder domains are restricted in the same place where far approach that the cylinder domains exert a useful magnetic influence on one another in two or more tracks.

The following circuits are so-called non-sustaining, special embodiments of preserved or non-volatile (J-3 circuits. One such 3-3 circuit is a Circuit with three cylinder domain entrance gates and exits. Magnetic cylinder domains can be generated with a device called a generator, with a destruction

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ter are destroyed and divided into two cylinder domains on separate tracks with a splitting or dividing device will. A sustaining or non-volatile circuit is a circuit in which cylinder domains neither destroyed, created or split, while a non-sustaining circuit is a circuit in which cylinder domains generated, polished or destroyed. A generator is with the number "1", a shredder by a box with a χ inside and a divider by the Letter "S" symbolizes.

Unless otherwise stated, the circuits described below operate with cylinder domain currents, where locations along the streams represent bits and the presence or absence of a cylinder domain at a particular one Bit position in a stream represents the transfer of information. Where several streams work together, become they synchronized. That is, the bit positions in each stream correspond to each other when they join a transmission field or another logistics facility. However, unless otherwise noted, a cylinder domain generator generates magnetic cylinder domains at regular intervals to create a fully occupied cylinder domain stream which is similarly synchronized with other cylinder domain orbits if necessary. It can Cylinder domain compressors are used, to effectively use part of a cylinder domain path

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shorten if necessary.

In Figol an RS flip-flop is shown that non-volatile on a non-support, particular embodiment of a sustaining or ^"1 3-3-2ylinderdomänenschaltung derite ~ t is based, #ie in the publication of the meeting in the circuit as ¥ escon Class 9 is designated. The core of the circuit of class 9 is a pair of vertically distributed or shifted (graded) symmetrical transmission fields, which are represented as strong triangular fields and designated as 10 in total The upper, middle and lower tracks on one side of the fields 10 form the inputs and on the other side the output. The cylindrical domain currents at the input move in the same ^{K on all three tracks} direction, while they move in Fig. 1 on the lower track of the circuit in the opposite direction. In the flip-flop in FIG. 1, a specially designed circuit 12 is also used, which is referred to as a class 21 circuit in the publication on the Wescon conference. A cylindrical domain generator is connected to the input of the central lane of lane 12; the same lane represents the upper lane for circuit 10 of class 9. The outputs of the lower and upper lanes of circuit 12 of class 21 are connected to annihilators.

-Ik-

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The input of the lower track of the circuit 12 is the reset input of the FlipacFlop and is denoted by R.

If there is a cylinder domain at the reset input, i.e. the reset is "correct", a corresponding cylinder domain exiting the lower generator becomes the upper track of circuit 12 bumped and destroyed. Since the generator continues to run at the same cylinder domain speed generated, hits the reset or "R" cylinder dot a Lohh in the cylinder domain stream on the top track of the circuit 10. The entrance of the middle track of the Circuit 10 is the setting input labeled S; the output of this trace will be destroyed after it completes the circuit 10 has passed. The output of the upper track of the circuit 10 is sdileige via a memory which is active Length equivalent to one bit period is connected to the input of the lower lane of the circuit 10. The lower web of the Circuit 10 becomes the output Q of the R-S flip-flop after passing through the transmission field.

In contrast to the input connected to the cylinder domain generator, the R and S inputs of the flip-flop receive single unrepeated cylinder domains. If the Q is "0" in the initial state during operation, the input is on of circuit 10 on the top track a cylinder domain current. Because of the strong triangular field each cylinder domain in the stream on the middle orbit of the

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Circuit 10 transferred and destroyed. As a result, remains the flip-flop output "0". Bine setting cylinder domain the middle orbit of circuit 10 comes at the same time as one of the cylinder domains in the generated stream at. The adjusting cylinder domain is destroyed and the corresponding cylinder domain in the generated stream moves along the storage loop and comes out on the lower track of the circuit 10 on the transmission field in synchronism with the Arrival of the next cylinder domain in the generated stream. As the two cylinder domains repel each other, the Cylinder domains on the top and bottom tracks are not their orbits. This mode of operation is maintained by each subsequent cylinder domain so that the output Q a Cylinder domain current, which is the setting status of the Flip-flops, and which, what should be noted, was created by a single adjustment cylinder domain, the Arrangement or interruption of the cylinder domains on the upper and lower tracks of the circuit 10, which are in move in opposite directions requires precise adjustment of the transmission fields 10 at the point at which the cylinder domains moving in the opposite direction cross or meet each other in order for the cylinder domains to create enough time to magnetically influence each other.

After the flip-flop is set, it can by a cylinder domain on the reset gear R to "0"

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reset or reset; i.e. the output current Q is stopped after the R input is a cylinder domain receives, which punches a hole in the generated electricity. The derailment finally has the consequence that on the upper one In the course of the circuit 10, a hole arrives or a cylinder domain is missing. Hence, the previous cylinder domain, the arrives on the lower track of the circuit 10 at the same time as the hole on the upper track does not repel. Consequently the cylinder domain on the lower track is directed through the stronger triangular field to the middle track, where it is destroyed will. In the subsequent bit period, the hole on the bottom track of circuit 10 arrives at the same time as to which the next cylinder domain on the top Track of circuit 10 arrives. Since there is no repulsion, the cylinder domain on the top orbit becomes the middle one Train transferred and destroyed. Similarly, subsequent cylinder domains in the generated stream are destroyed. As a result, the exit has been postponed.

When the flip-flop is in the Hückstellzustand, has a ZyIInderdomäne au £ the RückstelllLeitung which has a hole in the produced stream a result, no effect on the output Q. Accordingly, when the flip-flop is in the set state, has a cylinder domain adjacent to the adjustment line has no effect at all on the output. Interestingly, however, if cylinder domains at the input are simultaneously applied to the reset and adjustment

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Line occur, the output is unchanged ensures that the "invalid" occurrence of cylinder domains at the same time has no effect on the flip-flop at the setting and the reset input.

Instead of a class 9 circuit, circuits from other classes from the Jt classes of the various outputs can be used in the receiving 3-3 circuits described in the publication relating to the Wescon meeting. In order to use the appropriate circuit in one class or another, the setting-reset and generator lines may have to be swapped.

The logical equation for the RS flip-flop gives an indication of the selection of other suitable classes from the 3-3 circuits: Q = R ¹ S + R ¹ Q, where n + 1 represents the time after η, and the dash, As a result, circuits which produce an output of the form X (Y '+ Z) as in the class 9 circuit or other circuits can be specially designed to provide a flip-flop function. In addition, because of the condition for the RS flip-flop RS = 0, the term RS in the flip-flop equation can be reduced to S5 as a result, circuits with output functions of the form X + YZ can also suffice.

To do this with regard to the circuit shown in Fig.

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len, the inputs on the upper, middle and lower tracks should be labeled X, Y and Z. The output function on the lower track is then X (¥ + Z). To use this output, function X is made to represent "do not reset" or R ^f , function Y is made to represent "set", and function Z is made to represent the previous output on the upper track, namely Q represents. In order to carry out this last-described representation, a delay slot with a 1-bit period connects the upper output path with the lower input path. This type of circuit design can of course also be extended to other classes.

In Fig. 2 a trigger or control flip-flop is shown, that on a special, designated by the reference number 13 Class 9 circuit is based. A single tax cylinder domain forms the input on the lower track of the circuit 13. If in the initial state the output is in is the reset or the state "0", this cylinder domain becomes the middle path by the strong field distracted where there is a memory loop with a 1 bit moved to the input in the opposite period Direction to form on the upper web after there is the strong (triangular) field between the upper and middle Has passed through lanes. The upper track ends in an annihilator. After being triggered or controlled by a single In the initial state, the cylinder domain becomes the cylinder domain of

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the memory loop transmitted through the preferred, strong (triangular) field to the middle track, where it re-enters the memory loop and then continuously revolves at the same speed ι while in the circulating operation, the flip-flop can be reset that a trigger or The control cylinder domain arrives in the circuit 10 on the lower track at the same time as the rotating cylinder domain on the upper track o As a result, both cylinder domains remain on their tracks and are destroyed, whereby the circulation is then also ended. The actual output of the circuit is obtained by retrieval or cylinder domain repetition. An embodiment of a V repeater or replicator is shown in Figure 2; it is a special embodiment of a circuit of class 21 _e denoted by the reference number 15.The generator line, which represents the middle path in circuit 12, has been eliminated, except when a circumferential cylinder domain transmits a correspondingly generated cylinder diamond via the rectangular field to output Q . This repetition takes place during each bit period. Another way to repeat the wraparound bit is to use a cylinder domain splitter located somewhere on the memory loop.

In addition to a class 9 circuit, there are also circuits other classes to create a trigger or T flip-flop suitable from 3-3 circuits. A process to

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Finding speaking classes from the 31 classes of 3-3 circuits, which are described in the publication about the conference in Wescon, can be derived from the formula for the T flip-flop, which is as follows: Q ^{n +} = Q ⁿ φ T. For example, the class 9 circuit creates an output logically defined as Y + (X © Z), where the inputs are X, Y and Z, respectively. By omitting a Y input or an input on the middle lane, as shown in Figure 3, the T-Fkip-Flop results. if the Z-input represents the control cylinder domain and the X-input or the top lane receives the output on the middle lane via the storage loop.

In Fig. 3 a decoder for four variables is shown, which on a number of pyramidal arranged Circuits based on that in the publication about the Wescon meeting are designated as Class 21 circuits. There are four input lanes for cylindrical domain data streams. Accordingly, there are also sixteen exit lanes which represent the decomposition products of these four variables. The logical formula at each output 3 denotes the decomposition product which is generated at this output. For example, if the input changes W, X, Y and Z are each 1010 for one bit period, then the ones or zeros correspond to that Presence or absence of cylinder domains on the corresponding Lanes. Accordingly, only the exit is among the

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sixteen outputs, which could be "correct", the output WX ¹ YZ 'marked l4 "The cylinder domain generator on track l6 is connected to track l8 when class 21 is switched if a cylinder domain is applied to input W" If the displaced, generated cylinder domain, which then represents ¥, arrives at the next level of the circuit 22 of class 21, meets it simultaneously with the missing cylinder domain from the X input, since = 0, consequently the cylinder domain remains which VT represents on the path 18, through the circuit 22 on the path 18 “The cylinder domain therefore represents the product WX after passing through the circuit 22! If the cylinder domain on track 18 reaches circuit 2k on the third level of circuits in class 21, then the cylinder domain meets an existing cylinder domain which was applied to the Y input to represent a 1 "The cylinder domain the Y input causes the cylinder domain on track 18 to be shifted to the top track Ik of circuit 24, where it represents WX ¹ Y. When the cylinder domain on track 26 reaches circuit 28 at the fourth level of a class 21 circuit , it encounters a missing cylinder domain from the Z input since Z = 0. As a result, the cylinder domain in the circuit 28 can remain on the path Ik "After passing through the circuit 28 it represents the decomposition product WX ¹ YZ '" The remaining fifteen outputs of the decoder do not receive a cylinder domain "

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A further embodiment of a decoder for four variables is shown in FIG. The difference between the circuits of Fig. 3 and k lies in the way in which the input lines for the variables are applied to the various circuits of class 21 on the respective *. In FIG. 4, a cylinder domain can be repeatedly applied to the input of a single line with the aid of dividing or splitting devices in order to supply two symmetrically aligned class 21 circuits. On the other hand, in the circuit of FIG. 3, the input cylinder domain tracks run in series through the circuits of class 21 with the corresponding level. *Level

The method shown in the circuits of FIGS can be expanded to any number of variables. Additionally, these circuits can each specially designed so that one or more of the variables can represent a constant, iridäün for example a generator is used instead of a variable or the! generator is used by a variable is replaced.

In the circuit of FIG. 5, labeled "A", a Combination of certain circuits of class 21 used in addition to the trivial or unimportant outputs X and Y product permutations of the two variables X and Y

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to create.

If a cylinder domain is obtained at the X input rather than the Y input of the circuit, the cylinder domain at the X input will repel a co-existing cylinder domain from the cylinder domain generator on the path leading to the output labeled XY '. If a cylinder domain is obtained on the Y input and not the X input, the generated | cylinder domain will be hit on the path leading to the output labeled ^{X 1 Y.} If cylinder domains are obtained at both the X and Y inputs, the cylinder domain has the same repulsive force of the two cylinder domains applied to the Y and X inputs at the first field and it tar remains on its orbit until it does second field where it passes through the cylinder domain coming from the X input

the path leading to the exit labeled XY is encountered. If a cylinder domain is not obtained at either the X or the Y input, the generated cylinder domain remains on its path at the ^{output labeled X 1} Y '«

In Fig. 6 is a planar circuit B with crossing points which is based primarily on a combination of Class 21 circuits, except when a weak one Triangular box is used to generate the output X.

The circuit has a logic configuration that

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is also described in the patent application mentioned at the beginning. The variable X is applied to the circuit from the left and reproduced at the exit on the right-hand side, as shown in Fig.6. The changeable becomes accordingly Y applied from above and given away at the exit on the underside. Inverted and non-inverted products (AND and NAND functions) of the variables X and Y are in the lower right quadrant between the X and Y output lines generated. The geometric structure of this circuit is, as can be seen for example from Fig. 7, is important because a plurality of cross-point circuits B are arranged in the form of a matrix in a planar arrangement which do not contain any actual intersections of cylinder domain trajectories.

The arrangement in Figure 7 is a planar decoder for four Mutable one that has no actual overlap inside. Sixteen circuits B with crossing points, as shown in detail in FIG. 6, are connected to form a matrix. The X output of a first circuit B forms the X input of a second circuit B in the same row. Similarly, the Y output represents of the first circuit B represents the Y input of a third circuit B in the same column. The other connections are in carried out in a similar manner. The NAND outputs of each circuit B are destroyed in FIG. 7, but can if required will also be used.

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Parallel inputs at the X inputs of each circuit B in the first column of the matrix are with a planar decoder attitude A for two variables, as shown in detail in Figo 5 ο the variable at the input of the first circuit A are ¥ and X = The trivial or unimportant outputs ¥ and X are eliminated. Another circuit A forms parallel Y inputs to each of the circuits B in the first row of the matrix. At the The input of this circuit A are the variables Y- and Z, whose trivial outputs are eliminated in a similar way are. All sixteen decomposition products of W, X, Y and Z are generated in the matrix by the non-inverted product or AND outputs of the circuits B, as by the logical formula specified at each output is displayed »

The invention can also be practiced in other specific embodiments. The embodiments given are for illustration only and are not intended to be limiting of the invention. »All changes and modifications in the form of equivalents are also authorized by the Invention includes.

Claims - 26

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Claims (2)

Claims 1. Logical circuit with magnetic cylinder domains in the form of a planar decoder for two variables, thereby characterized in that a pair of outer tracks for the magnetic cylinder domains are the input sides for the reception and transmission of cylinder domains corresponds to the fact that a number of non-intersecting, in-between » horizontal tracks for the cylinder domains between the outer tracks for receiving and transferring magnetic cylinder domains are arranged, with the number of lanes in between for the cylinder domains being four output lanes specifies that a controller be located between adjacent pairs of outer and intermediate tracks is about a cylinder domain transfer between the orbits according to the existing and missing cylinder domains on the input lanes to determine an existing or missing cylinder domain on each of the output lanes corresponding to a different decomposition product of the to create variables associated with the input paths, which are each determined by the presence or absence of cylinder domains are displayed at the entrance lanes. 2. Logical circuit with magnetic cylinder domains in Form of a planar circuit with crossing points, in particular according to Claim 1, characterized in that that a number of non-intersecting cylinder do- - 27 - 509B25 / 0501 maneuvers for transferring the magnetic cylinder domains a pair of input lanes and three output lanes that control means of the number of cylinder domain lanes is assigned which responds to the combination of existing or missing cylinder domains at the entrance lanes, around cylinder domain crossings at the entrance lanes to a pair of opposing corresponding exit lanes and to produce a product of the variables present at the input paths at the other output between the outer exit tracks. 3 · Logical circuit with magnetic cylinder domains in Form of a planar posture with crossing points, in particular according to one of the preceding claims, characterized by a logical crossing device to swap cylinder domains on a pair Entrance lanes with corresponding, opposite exit lanes and by a logical AND device for magnetic cylinder domains, which are based on existing and missing Cylinder domains at the logical crossing paths at the input responds to an AND output for magnetic cylinder domains on an output path zx-rischen to generate the logical crossing paths at the output ο 509825/0501