Electronic digital logic circuitry – Superconductor – Tunneling device
Reexamination Certificate
2006-09-01
2008-05-27
Tan, Vibol (Department: 2819)
Electronic digital logic circuitry
Superconductor
Tunneling device
C326S001000, C326S002000, C326S003000
Reexamination Certificate
active
07378865
ABSTRACT:
A superconducting circuit includes a first transformer to produce a first alternating-current output at a secondary-side inductor, a second transformer to produce a second alternating-current output at a secondary-side inductor, a first pulse generating circuit to produce a single flux quantum pulse responsive to the first alternating-current output, a second pulse generating circuit to produce a single flux quantum pulse responsive to the second alternating-current output, and a confluence buffer circuit to merge the single flux quantum pulses from the pulse generating circuits, wherein each of the pulse generating circuits includes a superconducting loop including the secondary-side inductor, a first Josephson junction situated in the superconducting loop to generate the single flux quantum pulse, and a second Josephson junction situated in the superconducting loop, a threshold value of the second Josephson junction for an electric current flowing through the secondary-side inductor being different from that of the first Josephson junction.
REFERENCES:
patent: 6154044 (2000-11-01), Herr
patent: 6229332 (2001-05-01), Herr
A. Yoshida et al.; “Frequency Multiply Circuit for Superconducting A/D Converter,” IEEE Transactions on Applied Superconductivity, vol. 15, No. 2, Jun. 2005, pp. 431-434.
J. C. Lin et al.; “Design of SFQ-Counting Analog-to-Digital Converter,” IEEE Transactions on Applied Superconductivity, vol. 5, No. 2, Jun. 1995, pp. 2252-2259.
Himi Takuya
Suzuki Hideo
Taguchi Atsushi
Tanabe Keiichi
Yoshida Akira
Fujitsu Limited
International Superconductivity Technology Center, The Juridical
Kratz Quintos & Hanson, LLP
Tan Vibol
White Dylan
LandOfFree
Superconducting circuit for generating pulse signal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Superconducting circuit for generating pulse signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconducting circuit for generating pulse signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3981500