JPS5822836B2 - Cross-connections for magnetic bubble domains - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates generally to magnetic bubble domain devices, and more particularly to circuits for making it possible to cross-connect separate paths of information without any difficulty. It is related to.

Description of the Prior Art Many magnetic bubble domain devices are known in the art, in the era of magnetic bubble domains and used in many fields.

In fact, magnetic bubble domain devices are showing promise as an alternative to existing semiconductor and magnetic devices.

Many evaluations and design developments have been undertaken to better utilize magnetic bubble domain devices and their associated circuitry.

Many systems and related devices have been created.

However, until now, it has been relatively difficult to intersect the flow of information on one path with the flow of information on another path without any hindrance in the flow of information.

In reality, the intersection of information flow and propagation paths is occurring (and underutilized).

There are many cases like this.

This is because it was not believed that a satisfactory intersecting element was possible.

However, many components that can be used in constructing crossover systems or connections are already well known.

For example, there are a large number of transfer switches available, merge connections are also known, and propagation path elements are provided.

However, it has not been proposed to combine such elements to create efficient working components.

OBJECTS OF THE INVENTION Therefore, the main object of the invention is to provide a novel magnetic bubble which allows the flow of information in a plurality of separate propagation paths to intersect with each other without any detrimental effect on the flow of information. The purpose is to provide cross-connections for domain circuits.

SUMMARY OF THE INVENTION Briefly described, the cross-connect of the present invention comprises a plurality of input propagation paths capable of propagating an input domain, a plurality of input propagation paths that combine into a common propagation path, and a merging means for propagating an input domain from each of the paths; at least one output propagation path remote from and adjacent to said common propagation path; and active transfer selectively forming a common propagation path and said output propagation path. switch means.

Separate output domains representing the input domains can be respectively taken from the common propagation path and the output propagation path in response to the state of the active transfer switch means.

Arrangements can also be made for crossing multiple propagation paths by using appropriately timed or spaced information or, alternatively, by using a multiple cross-connect arrangement.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 shows a schematic diagram representing connections known in the art.

This connection does not provide a cross-circuit per se and is merely presented here as pertinent prior art known to the applicant.

However, in the connection shown in FIG. 1, the information propagating along the path from location A and the information propagating along the path from location C are merged by a merging device M1 as known in the art.

The merged information passes along a common propagation path to passive replicator Rp.

At this point, the bubble propagation through the replicator is propagated along the path to location B and along the path to location B.

Therefore, this connection provides the effect of operating as an OR gate in the merging section M1 and of generating a replicated (or copied) output signal (at the replicator Rp).

Their output signals are a function of information from locations A and C.

In reality, there is no "crossing over" of information.

That is, the information provided to locations B and D is the same regardless of whether the information comes from location A or location C.

FIG. 2 is a block diagram implementing the cross-connect concept of the present invention.

It is assumed that the cross-connection Jc operates so that the information at the location C is propagated to other locations via the connection point.

Substantially simultaneously, information from location A is also transferred to connection point J.
The position Bx propagates through c.

In this way, the information from positions A and C is, respectively,
They are propagated to locations B and D via connection point Jc without any interaction or interference with each other.

FIG. 3 shows a schematic diagram of the connection point Jc.

At the cross-connection point Jc, the propagation paths from positions A and C are commonly connected at the merge point Mc.

However, the common propagation path following the merger Mc is directed to the position.

Therefore, any information propagating from location A or C is merged and propagated to location.

Further, a transfer switch Tc is provided after the merging portion Mc and before the position.

This switch Tc is of any known form, such as a dollar sign ($) switch or the like.

The transfer switch Tc is an active switch and therefore:
It is necessary to give a control signal to it.

Switch Tc includes any suitable element, such as a dollar sign, a pickaxe, or any other element.

These elements are represented by arrows on the transfer switch Tc.

The propagation path associated with transfer switch Tc is directed towards position B.

The signal line or conductor S is associated with an active transfer switch in any suitable manner known in the art;
It depends on the particular form of transfer switch Tc used.

In this way, information flows propagating from locations A or C join together at the merging point Mc and propagate along a common propagation path.

Typically, information propagates from place to place. however,
If an information signal is applied to conductor S, active transfer switch Tc
operates and transfers information (bubble domain) from a common propagation path,
Guide to position B (transfer to the propagation path).

In this way, information can be transferred and propagated as desired.

FIG. 4 shows a schematic diagram of the operation of the cross-connection point Jc shown in FIG.

In the embodiment shown in FIG. 4, information is propagated from locations A and C.

Two propagation paths are therefore provided.

These propagation paths come together at the merging point Me, as best shown in FIG.

It will be noted that the information flows provided by locations A and C are arranged alternately.

In this way, the information occurring at position A (represented by a circle)
is given in every other operating cycle.

In this case, the bubble from position A will be in odd numbered cycles (
For example, 1.3, 5, etc.).

Conversely, information from location C (represented by X) is provided in intermediate or even numbered time slots.

It can be seen that when this information is merged at the merging section Me, the information is staggered along the common propagation path.

In this way, the information for this route is o, x, o, x, o, x
etc.

By configuring the timing appropriately, the signals on conductor S are applied in alternating time frames.

In this case, when the transfer switch Tc is activated at an odd numbered time, information from position A (represented by a circle) is transferred to position B.
is forwarded to the propagation path that leads to.

Conversely, when transfer switch Tc is not activated, information from position C, represented by X, is propagated to position C.

Therefore, information from location A goes to location B, and information from location C
It can be seen that the information from the path goes to the location and the paths AB and CD are intersected without interfering with the information above.

FIG. 5 is a schematic diagram of a cross-connect with multiple inputs and multiple outputs, illustrating another embodiment of the invention.

In this embodiment, multiple input lines and multiple output lines are configured to intersect with each other in accordance with the present invention.

Thus, it can be seen that lines from positions A and B merge at Mc1, while lines from positions C and D merge at Mc2.

The combined propagation paths from the merging portions Mc1 and Mc2 are combined and merged at the merging portion Mc3.

Of course, these lines can be merged differently if desired without confusing the merge of information.

In the embodiment of FIG. 5, there are four propagation lines.

Therefore, the information from each source is separated by 4 bits.

Typically, information from source A is provided during cycle 1.

Similarly, information from sources B, C, and D is cycle 2
3 and 4 respectively.

Although the information is merged onto a common line after merger Mc3 and a compact information density along this path is shown, the same timing or order is still maintained.

At a suitable location along the common propagation path, switch Tc1
are provided to selectively transfer information from the common propagation path to the propagation line associated with location A'.

Similarly, transfer switches Tc2 and Tc3 are provided to extract or transfer information from the common line to the appropriate propagation paths associated with locations D' and C', respectively.

Location B' receives information directly along the extended propagation path.

Of course, transfer switch Tc3 can be configured to operate in the opposite manner, and the paths associated with B' and C' can be reversed by the switch path and by the continuous path.

However, positions A', B', C' and D
'The output information flow supplied to position A.

It has the same timing relationship as the input information flow provided by B, C and D.

Therefore, input lines are connected to output lines so that the information does not have any detrimental effect on them (intersections).

FIG. 6 is a seven-dimensional diagram of another embodiment of the present invention.

Typically, FIG. 6 can be considered to be a block diagram of the apparatus shown in FIG.

However, FIG. 6 represents a system in which the packing density of information on the input lines is increased and the spacing between information is reduced.

Referring now to FIG. 7, another cross-connection of the type contemplated in FIG. 6 is shown.

Also, inputs A and B. C and D are outputs A', B'
, C' and D'.

However, the four lines intersect each other by using multiple connection points where packing density is maintained.

In this way, information from location A and information from location C are merged and separated by connection point J2.

Similarly, information from location A is merged with and separated from the information from location by junction J4.

Finally, the information from location A is transferred to location B via connection point J6.
is merged with and separated from that information.

This information is then transferred to location A' without any interference or adverse effects as a result of crossing the lines associated with locations B, C and D.

Information from positions BC and D is sent to connection points J1 to J6.
are propagated to locations B', C', and D' along paths indicated by appropriate merging and separation at respective connection points such as .

It has been noted that for best results in this configuration, the information can be separated by one cycle given the alternating cycle operation.

Therefore, the information packing density of the device shown in FIG. 7 can be improved by a factor of two over the connection point shown in FIG.

Furthermore, to simplify operation, it is desirable to perform as many switching operations as possible at the same time.

For this purpose, the connection point may be configured to use either a delay switch (as known in the art) or an additional propagation path period to control the time at which information reaches one of the connection points. It is desirable to change the route between them.

For example, assume that the information for locations A and B is provided in alternate time slots, and the information for locations C and D is also provided in alternate time slots, and that the information for locations A and C have the same time slot. do.

With this timing configuration, there is a delay Δ2 between nodes J1 and 52 so that the information for locations A and C can be provided to node J2 at different times and thus interspersed.
It is desirable to use them together.

Similarly, delays △1 are interposed between junctions J, and J3 to separate information from locations A and C1, and delays Δ3 and Δ4 are inserted between junctions J4 and J5 and between junctions J4 and J6. are provided between each.

With this configuration, the propagation in each path, that is, AA',
It can be seen that BB', CC', and DD' are delayed by one cycle.

Therefore, all information on the output is synchronized to match its input.

Of course, other switching configurations may be desirable for each connection point.

Staggered configuration of the switching fabric requires reconfiguration of the delay or delay operation.

Nevertheless, this latter configuration may be considered a function of the operation required and/or desired by the operator.

EFFECTS OF THE INVENTION As described above, a cross-connection point for use with a magnetic bubble domain according to the present invention allows the information flow of one propagation path to intersect with the information flow of other propagation paths without any detrimental effect. be able to.

As a result, high density bubble domain devices can be achieved.

Also, by using active components (i.e.: external control), any proven components such as half-disks, asymmetric chevrons, T-bars, etc. can be safely used.

While particular embodiments of the invention have been shown and described, other embodiments will suggest themselves to those skilled in the art.

However, any modifications that come within the scope of this description are intended to be included herein.

The embodiments shown and described are illustrative only and not intended to be limiting.

The scope of this application is defined solely by the following claims.

[Brief explanation of drawings]

FIG. 1 is a connection device known in the prior art. FIG. 2 is a block diagram representing the cross-connection concept of the present invention. FIG. 3 is a schematic diagram of the cross-connect of the present invention. FIG. 4 is a schematic diagram of the cross-connect of the present invention showing information propagation. FIG. 5 is a schematic diagram of a cross-connect with multiple inputs and multiple outputs. FIG. 6 is a block diagram of another embodiment of the invention. FIG. 7 is a schematic diagram representing connections according to the block diagram shown in FIG. In the figure, Mc is a merged device, Tc is a transfer switch, and S
is a conductor, and Jc, Jl to J6 are connection points.

Claims (1)

[Scope of Claims] 1. A plurality of input propagation paths capable of propagating a human domain; and combining the plurality of input propagation paths into a common propagation path and propagating the input domain from each of the input propagation paths. at least one output propagation path remote from and adjacent to the common propagation path; and active transfer switch means for selectively forming the common propagation path and the output propagation path; A cross-connect for magnetic bubble domains, wherein separate output domains representing the input domain can be respectively taken out from the common propagation path and the output propagation path in response to a state of the active transfer switch means. 2. The cross-connect of claim 1, wherein the active transfer switch includes means for providing a control signal thereto. 3. The control signal is connected to an input signal along the at least two input propagation paths. 4. The cross-connect according to claim 2, wherein the cross-connection is applied at a predetermined time as a function of cyclically applying .4. 5. A cross-connect according to claim 1, characterized in that the domain from the common propagation path to the output propagation path is: 5. The active transfer switch means includes a plurality of active transfer switch elements, the number of the switch elements 6. The cross-connection according to claim 1, wherein: is one less than the number of input propagation paths. A cross-connect according to claim 1, which couples.