The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2019
Filed:
Dec. 20, 2018
Quentin P. Herr, Ellicott City, MD (US);
Anna Y. Herr, Ellicott City, MD (US);
Donald L. Miller, Export, PA (US);
Christopher S. Bulla, Ellicott City, MD (US);
Theodore R. Blank, Columbia, MD (US);
Quentin P. Herr, Ellicott City, MD (US);
Anna Y. Herr, Ellicott City, MD (US);
Donald L. Miller, Export, PA (US);
Christopher S. Bulla, Ellicott City, MD (US);
Theodore R. Blank, Columbia, MD (US);
NORTHROP GRUMMAN SYSTEMS CORPORATION, Falls Church, VA (US);
Abstract
One embodiment describes a Josephson current source system comprising a flux-shuttle loop that is inductively coupled with an AC input signal. The flux-shuttle loop includes a plurality of stages each comprising at least one Josephson junction. The plurality of stages can be spaced about the flux shuttle loop. Each of a plurality of pairs of the plurality of stages are configured to concurrently trigger in a sequence via the respective at least one Josephson junction in response to the AC input signal and to provide a respective pair of single-flux quantum (SFQ) pulses that move sequentially and continuously through each stage of the plurality of stages around the flux-shuttle loop via each of the at least one Josephson junction of each of the respective stages that results in a DC output current being provided through an output inductor.