Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1980-07-29
1982-08-03
Zazworsky, John
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307277, 307306, 307476, H03K 1792
Patent
active
043429246
ABSTRACT:
The transfer characteristic of nonhysteretic Josephson junction gates (G) is sharpened and desired switching behavior free from resetting requirements is achieved by a positive feedback scheme (FIGS. 5, 8-9) in which the gate is made to be responsive to current flow in the output line (20). Specific applications to three-junction interferometers (FIG. 5) are described as are various means for rendering the gate responsive to the output, i.e., magnetically coupling the output line to the gate (FIGS. 5, 8), adding a portion of the output current to the control line (FIG. 9), and injecting a portion of the output current directly into the gate (FIG. 10).
REFERENCES:
patent: 3725819 (1973-04-01), Fulton
patent: 4117354 (1978-09-01), Geewala
D. L. Stuehm et al, "Three-Josephson-Junction Interferometer" Appl. Phys. Lett. vol. 20, No. 11 Jun. 1, 1972 pp. 456-458.
H. H. Zappe, "Josephson Quantum Interference Computer Devices" IEEE Transactions on Magnetics vol. MAG-13 No. 1 Jan., 1977, pp. 41-47.
J. Clarke et al., "Josephson-Junction Amplifier" Applied Physics Letters vol. 19, No. 11, Dec. 1, 1971 pp. 469-471.
Howard Richard E.
Jackel Lawrence D.
Bell Telephone Laboratories Incorporated
Urbano Michael J.
Zazworsky John
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