Superconducting driver circuit

Electricity: measuring and testing – Magnetic – Magnetometers

Reexamination Certificate

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C505S846000, C327S527000

Reexamination Certificate

active

07095227

ABSTRACT:
To obtain a superconducting driver circuit which can obtain an output voltage of several millvolts or above, can use a DC power source as a driving power source, can form no capacitance between it and a ground plane, and has a small occupation area, the superconducting driver circuit is constructed by superconducting flux quantum interference devices (SQUIDs) each constructing a closed loop having as components two superconducting junctions and an inductor. The SQUIDs share the inductors and are connected in series in three or more stages.

REFERENCES:
patent: 4983971 (1991-01-01), Przybysz et al.
patent: 6486756 (2002-11-01), Tarutani et al.
patent: 6580310 (2003-06-01), Herr
patent: 2000-261307 (2000-09-01), None
patent: 2001-068995 (2001-03-01), None
H. Suzuki et al, “Applications of Synchronized Switching In Series-Parallel-Connected Josephson Junctions”, IEEE Transactions on Electron Devices, vol. 37, p. 2399, 1990 *cited in the specification on pge 4 and the search report of the PCT proceduce.
O.A. Mukhanov et al. “Josephson Output Interfaces for RSFQ Circuits”, IEEE Transactions on Applied Superconductively, vol. 7, p. 2826, 1997 cited In the specification on p. 2.

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