JPS6040595A - Superconductive storage information reading circuit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a superconducting storage information reading circuit that reads out information stored in a plurality of superconducting information storage circuits.

Conventionally, as such a superconducting storage information readout circuit, the first
A structure similar to that shown in the figure and described below has been proposed.

In addition, a plurality of n input superconducting switches G+, Gy, etc. each having a Josephson junction cable J, a control line C, etc.
......Gn.

Further, a readout control superconducting switch D having a Josephson junction element J and a control line C is shown on the right.

Furthermore, J is the Fuson junction element J, and two control lines C1
and an output superconducting switch having C2, etc.

Therefore, multiple input superconducting switches G1, G2...
. . . A control line C of Gn is coupled to a plurality of superconducting information storage circuits M+, M+ . . . Mn, respectively.

In this case, superconducting information storage circuit M+ (i=1.2...
... n) is controlled by connecting the control line S1 to the superconducting information storage circuit M, and when information is stored as "1" in binary display, = 53 - for human power If the output is supplied to the superconducting switch G1 with a binary value of 11" and is stored as "0", it will be "2" and "O".
It is configured to be supplied with "."

In addition, multiple input superconducting switches G+, G,...
...G I'l Josephson junction elements J are connected in series to form a first series circuit.

Further, the Josephson junction element J of the superconducting switch D for read control and the control line C2 of the superconducting switch for output are connected in series to form a second series circuit.

Thus, the above-described first and second series circuits are connected in parallel and inserted into the power supply path B11.

Further, the Josephson junction cable J of the output superconducting switch E is inserted into the power supply path B12.

Roughly speaking, input terminals TT1 and TI2 are led out from the control line C of the readout control superconducting switch D and the control line C1 of the output superconducting switch E, respectively.

Further, an output ON TO is derived from one end of the Josephson junction element J of the output superconducting switch to the Ω load via the resistor R3.

The above is the configuration of the conventionally proposed superconducting storage information readout circuit.

If J: has such a configuration, the following operation will be performed, although a detailed explanation will be omitted.

That is, when a control signal is supplied to the input terminal T11, the Josephson junction element J of the readout control superconducting switch D transitions from the zero voltage state to the right voltage state, and current flows to the input superconducting switches G, ~G11. Therefore, when information is stored in the superconducting information storage circuit M1 at 11'', the Josephson junction element J of the input superconducting switch G1 transitions from the zero voltage state to the voltage state.

Before the Josephson junction element J of the input superconducting switch G1 transitions to the voltage state, the Josephson junction element J of the read control superconducting switch D returns from the voltage state to the zero voltage state. .

Therefore, a current flows through the series circuit between the Josephson junction element J of the read control superconducting switch D and the control line C2 of the output superconducting switch.

If a control signal is supplied to the input terminal TI2 from this J state, the Josephson junction cable of the output superconducting switch F will transition from the zero voltage state to the voltage state, and therefore the output terminal To A current is supplied to the load 1- via.

Thus, the information "1" stored in the superconducting information storage circuit M1 has been read out.

In addition, when information is stored in all of the superconducting information storage circuits M+~Mn in rOJ, the Josephson junction of any of the input superconducting switches G, ~Gn J also does not transition from the zero voltage state to the right voltage state, so even if a control signal is supplied to the input terminal TI2,
The Josephson junction cable J of the nine output switches F does not transition from the zero voltage state to the voltage state, and therefore no current is supplied to the load.

In this way, it is read out that information is stored in rOJ in all of the superconducting information storage circuits M1 to Mn.

From the above, the conventional superconducting storage information reading circuit shown in FIG. 1 can read out the information stored in the superconducting information storage circuits M1 to Mn. After supplying the control signal to the input terminal T11, the superconducting switch D for continuous control transitions from the zero voltage state to the right voltage state, and from that state, the superconducting switch D for readout control self-recovers to the zero voltage state. If the control signal is not supplied to the input terminal TI2 after this, the information cannot be read out.

For this reason, the conventional superconducting storage information reading circuit shown in FIG. 1 has the drawback that it takes time to read information, and therefore information cannot be read out at high speed.

In addition, in the case of the conventional superconducting storage information successive output circuit shown in FIG. 1, it is necessary to prepare two control signals to be supplied to the input terminals T1.1 and TI2, respectively, for reading information. It is not possible to read out the information easily.
What drawbacks did it have?

Therefore, the present invention aims to propose a novel superconducting storage information readout circuit that does not have the above-mentioned drawbacks, and this will become clear from the following detailed description of embodiments of the present invention.

FIG. 2 shows a first embodiment of a superconducting storage information readout circuit according to the present invention.

In Figure 2, the same symbols are used for parts corresponding to those in Figure 1.
Therefore, detailed explanation will be omitted.

Referring to FIG. 2, the first embodiment of the superconducting storage information readout circuit according to the present invention has the configuration described below.

That is, as in the case of FIG. 1, a plurality of input superconducting switches G1 to Gn are provided.

Further, there is a superconducting switch Δ for continuous control having a Fuson junction element J (not shown) and a control line C.

This superconducting switch A for readout control corresponds to the superconducting switch D for readout control in the case of FIG. .

Furthermore, it has a Josephson junction rope J (not shown) and an output superconducting switch B having a control line C and the like.

This output superconducting switch B corresponds to the output superconducting switch shown in FIG. It has the following configuration.

Therefore, the input superconducting switches G+, G+...
. . . The control line C of G r+ is the superconducting information storage circuit M+, M+ . . . as in the case of FIG.
... are respectively bonded to Mn.

In this case, the superconducting information storage circuit Ml (i=1.2...
. . . n) is controlled by the control line S1 in the same way as described above in FIG. , the input superconducting switch G: outputs “1” in binary display.
If it is stored as rOJ, an output of 10'' is supplied to the input superconducting switch G1 in binary display.

Further, the Josephson junction elements J of the input superconducting switches G1 to Gn are connected in series to form a first series circuit, as in the case of FIG.

Then, the first series circuit is connected in parallel to the readout control superconducting switch A that has reached 4- through the resistor R1 to form a parallel circuit, and the parallel circuit is connected to the first power supply path B1.
is inserted.

Further, an output superconducting switch B is inserted into a second power supply path B2, and a control line C of this output superconducting switch B is connected via a resistor R2, and then via the above-mentioned resistor R1. , is connected to one end of the parallel circuit described above.

Thus, the input end TI is led out from the control line of the superconducting switch A for continuous control, and the output end To 1j is led out from one end of the superconducting switch B for output, which reaches the load via the resistor R3. There is.

The above is the configuration of the first embodiment of the storage information readout circuit according to the present invention.

According to such a configuration, the following operation is performed by 1q.

That is, if a control signal is supplied to the input terminal TI while current is being supplied to the power supply paths B1 and B2, the readout control superconducting switch △ transitions from the zero voltage state to the voltage state, and the readout The current flowing through the control superconducting switch A passes through the input superconducting switch G1 through the resistor R1.
Gn, and therefore, when information is stored in the superconducting information storage circuit M1 at 11", the input superconducting switch G, 1 [Fusson junction element, J] changes from zero voltage state. Transition to voltage state.

Therefore, the current that has been flowing in the series circuit of the input superconducting switches 01 to G flows to the control line C of the output superconducting switch B via the resistor R2. Switch-I I-B transitions from zero voltage state to energized state.

In this way, when the output superconducting switch B transitions from the zero voltage state to the voltage state, the current that has been flowing through the output superconducting switch B passes through the output terminal To, and then passes through the resistor R3. flows to load 1- through.

In this way, the information "1" stored in the superconducting information storage circuit Ml has been read out.

In addition, when information is stored as "0" in all of M1 to Mn, the Josephson junction element J of the input superconducting switch in any of the input superconducting switches G and ~Gn is in a zero voltage state. Since the input terminal TI does not transition to the voltage state from
Even if a control signal is supplied to input superconducting switch 01
Since the state in which current flows through the series circuit of ~Go is maintained, no current is supplied to the control line C of the output superconducting switch B, and no current is supplied to the load 1-.

In this way, it has been read out that the information stored in all of the superconducting information storage circuits M1 to M1 is "0".

From the above, if the conventional superconducting storage information successive circuit shown in FIG.
The information stored in ~M0 can be read out.

However, in the case of the superconducting storage information readout circuit according to the present invention shown in FIG. This is done immediately regardless of whether the superconducting switch A has returned from the voltage-applied state to the zero-voltage state.

Therefore, according to the superconducting storage information reading circuit according to the present invention shown in FIG. 2, information can be read out at a much higher speed than the conventional superconducting storage information reading circuit shown in FIG. It has the great feature of being able to.

In addition, in the case of the superconducting storage information reading circuit according to the present invention shown in FIG. 2, one control signal to be supplied to one input terminal TI is prepared for reading information. The characteristic is that information can be read out.

Next, referring to FIG. 3, a second embodiment of the superconducting storage information output circuit according to the present invention will be described.

In Figure 3, corresponding parts in Figure 2 are designated with the same reference numerals (
=i, and detailed explanation will be omitted.

A second embodiment of the storage information readout circuit shown in FIG. 3 has the configuration shown in FIG. Resistor 4 is inserted in series with the Jollefson junction element of the input superconducting switches 01 to Gn, and the series circuit of j, on the opposite side to the side to which the control line C of the output superconducting switch B is connected. The structure similar to that shown in FIG.
The configuration of the embodiment is the same as that in Figure 2, except for the addition of J, Repo, and E to the A1 configuration. The movement is 1!7.

However, in this case, since the resistor R4 is connected as in 1 above, when the readout control superconducting switch A transitions from the zero voltage state to the right voltage state, the current flows to the readout control superconducting switch A. The current flowing through the input superconducting switch G
In addition to the series circuit of 1...Grl, the current also flows in the control line of the output superconducting switch B, and from that state, the human-powered superconducting switch G1 transitions from the zero voltage state to the voltage state, The current flowing through the input superconducting switch G1 flows through the control line C of the output superconducting switch B, so the output superconducting switch B can stably transition from the zero voltage state to the right voltage state. , is the characteristic.

Next, a third embodiment of the superconducting storage information readout circuit according to the present invention will be described with reference to FIG.

In FIG. 4, parts corresponding to those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

A third embodiment of the superconducting storage information successive circuit according to the present invention shown in FIG. 4 has the configuration shown in FIG. In addition, the control line C' of the input superconducting switches G1 to Gn, the series circuit of j/)N, and the superconducting switch △ for readout control are connected in parallel, and Accordingly, one end of the series circuit of Jollefson junction elements J of the input superconducting switches 01 to Gn is inserted into the power supply path B3 of
The same configuration as in FIG. 2 is shown on the right except that it is connected to the control line C2 to the superconducting switch for readout control.

In this case, a 1° twin having the same configuration as the output superconducting switch E shown in FIG. The configuration of the third embodiment of the circuit is the same as that shown in FIG. 2 except for the matters mentioned above, so a detailed explanation will be omitted.
However, information can be read out in the same way as in the case of FIG.

However, in this case, the superconducting information storage circuit M.

If the information is stored in ``11'', input -1t)
- When the superconducting switch G1 changes from the zero voltage state to the right voltage state, it is controlled by the input terminal TI while current is being supplied to the control line C' of the superconducting switch A for readout control. At J, the readout control superconducting switch 8 transitions from the zero voltage state to the voltage state, and as a result, current flows in the control line of the output superconducting switch B, and the output superconducting switch B becomes @ The voltage state transitions to the right voltage state, and based on this, current flows to the load, so the information is "1".
is read out.

All of the superconducting information storage circuits M1 to Mn store the information rOJ, and the input superconducting switch J of any of the human-powered superconducting switches G1 to Gn is in a zero voltage state. Since the current does not flow in the control line C' to the readout control superconducting switch, the readout control superconducting switch A does not change from the zero voltage state to the voltage state, and J: Therefore, the output superconducting switch B does not transition from the zero voltage state to the right voltage state, and no current is supplied to the load 1-, so that information 10'' is read out.

It will be obvious that the superconducting storage information successive circuit according to the present invention shown in FIG. 4 also has the same excellent features as those described above in FIG. 2.

[Brief explanation of the drawing]

FIG. 1 is a connection diagram showing a conventional superconducting storage information successive circuit. FIG. 2, FIG. 3, and FIG. 4 are connection diagrams showing first, second, and third embodiments of the superconducting storage information readout circuit according to the present invention, respectively. M, ~M,...Superconducting information storage circuit G1~G
n...Input superconducting switch A...
......Superconducting switch 13 for readout control
・・・・・・・・・・・・・・・Output superconducting switches R1 to R4・・・Resistance applicant Nippon Telegraph and Telephone Public Networks] Continued from page 1 Xl

Claims (1)

[Claims] 1. A plurality of superconducting switches for input having a Josephson junction element and a control line; A superconducting switch for readout control having a Josephson junction element and a control line; and a Josephson junction element. and an output superconducting switch having a control line, wherein the control lines of the plurality of input superconducting switches are respectively coupled to the plurality of superconducting information storage circuits, Josephson junction elements of conduction switches are connected in series to form a first series circuit; the first series circuit and the readout control superconducting switch are connected in parallel to form a -C parallel circuit; The parallel circuit is inserted into a first power supply path, the output superconducting switch is inserted into a second power supply path, and the control line of the output superconducting switch is connected to one end of the parallel circuit. A superconducting storage information reading circuit characterized in that an input end is led out from a control line of the superconducting switch for readout control, and an output end is led out from one end of the superconducting switch for readout control. 2. A plurality of input superconducting switches having a Josephson junction element and a control line; a Josephson junction element and at least two first and second superconducting switches;
A superconducting switch for readout control that connects to the control line of the Josephson junction element, and a superconducting switch for output that connects to the control line of the Josephson junction element, and the control line of the plurality of input superconducting switches is G11 of the plurality of input superconducting switches each coupled to a plurality of superconducting information storage circuits? Fuson junction elements are connected in series to form a first series circuit, and the first series circuit and the readout control superconducting switch are inserted into third and first power supply paths, respectively, The superconducting switch for output is inserted into a second power supply path, the control line of the superconducting switch for output is connected to one end of the superconducting switch for readout control, and the superconducting switch for readout control has a second A control line is connected to one end of the first series circuit, an input end is led out from the first control line of the superconducting switch for readout control, and an output end is connected from one end of the superconducting switch for readout control. A superconducting storage information reading circuit characterized in that the following is derived.