Demodulators – Amplitude modulation demodulator – Having specific distortion – noise or other interference...
Patent
1980-10-20
1984-01-31
Grimm, Siegfried H.
Demodulators
Amplitude modulation demodulator
Having specific distortion, noise or other interference...
H03D 100
Patent
active
044292805
ABSTRACT:
A system for determining the modulation imposed on a curl-free magnetic vector potential field. The system includes apparatus for detecting the curl-free magnetic vector potential field component by means of a Josephson junction. The magnetic vector potential field interacts with the Josephson junction by varying the phase of the argument of the sine function which determines the Josephson junction current. The output signals of the Josephson junction are coupled to apparatus that can determine the modulation of the detected field. Because the magnitude of the change in the detected curl-free vector potential field causes a proportional change in the phase of the Josephson junction current, the modulation of the field can be established.
REFERENCES:
patent: 3363200 (1968-01-01), Jaklevic et al.
patent: 3733526 (1973-05-01), Amacher et al.
patent: 4070618 (1978-01-01), Thomas
Rosen et al., "Magnetic Recordings of the Heart's Electrical Activity with a Cryogenic Magnetometer," Journal of Applied Physics, vol. 42, #10, Sep. 71, pp. 3682-3684.
R. P. Feynmar, R. B. Leighton, M. Sands, The Feynman Lectures on Physics-Quantum Mechanics, Addison Wesley Press pp. 15-6 through 15-14 and pp. 21-1 through 21-19.
R. C. Jaklevic, J. Lambe, J. E. Mercereau and A. H. Silver. Macroscopic Quantum Interference in Superconductors. Physical Review, vol. 140, No. 5A Nov. 29, 1965-pp. A1628 through A1637.
Y. Aharonou and D. Bohm--Significance of Electromagnetic Potentials in the Quantum Theory. Physical Review vol. 115 No. 3, Aug. 1, 1959, pp. 485 through 491.
Y. Aharonou and D. Bohm--Further Considerations on Electromagnetic Potentials in the Quantum Theory, Physical Review vol. 123, No. 4 Aug. 15, 1961 pp. 1511 through 1524.
B. D. Josephson--Coupled Superconductors--Reviews of Modern Physics, Jan. 1964--pp. 216 through 220.
Grimm Siegfried H.
Holloway, Jr. W. W.
Honeywell Inc.
Medved A.
Sumner J. P.
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