Electricity: measuring and testing – Magnetic – Magnetometers
Patent
1992-03-13
1994-02-15
Strecker, Gerard R.
Electricity: measuring and testing
Magnetic
Magnetometers
307245, 307306, 307277, 324119, 328 26, 505845, 505861, 505864, G01R 33035, G01R 1922, H03K 338, H03K 1792
Patent
active
052870570
ABSTRACT:
A superconducting circuit system comprises a biasing circuit for producing a bias current that changes periodically, and a superconducting rectifier circuit driven by the bias current. The superconducting rectifier circuit is supplied with a first pulse train including therein positive and negative pulses in synchronization with the bias current and produces a second pulse train of unipolar pulses in response to a transition of a Josephson junction caused by the pulses of the first pulse train.
REFERENCES:
patent: 4710651 (1987-12-01), Suzuki
IBM Technical Disclosure Bulletin, vol. 28, No. 9; Feb. 1986; pp. 3742-3744; New York, U.S.; "Pulse Generating Interface Circuit"; Armonk.
Patent Abstracts of Japan; vol. 7, No. 123 (E-178) (1268); May 27, 1983; & JP-A-58 40 928 (Hitachi Seisakusho K.K.).
IBM Technical Disclosure Bulletin; vol. 26, No. 3B, Aug. 1983; pp. 1338-1340, New York, U.S.; "Generalized Sampling Principle" by S. M. Faris.
Matz et al., IEEE Trans. on Magnetics vol. 27, No. 2, Mar. 1991 "Integrated Magnetometer with a Digital Output" pp. 2979-2982.
Gotoh et al., ISEC'91 Extended Abstract "Multichannel Single-Chip SQUID with a Josephson Multiplexer" 4 pages.
Fujimaki et al., IEEE Trans. on Electron Devices vol. 35, No. 12 1988 "A Single-Chip SQUID Magnetometer", pp. 2412-2418.
Fujimaki et al., IEEE J. Solid-State Circuits, vol. 23, No. 3, 1988 "Josephson Pseudorandom Bit-Sequence Generator" pp. 852-858.
Husao, IEICE Trans. vol. E 74, No. 2, 1991 "Josephson LSIs" pp. 578-585.
Fujitsu Limited
Strecker Gerard R.
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