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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.:

US 12597932 B1

PDFFull Text
Date of Patent:
Apr. 07, 2026

Filed:

Feb. 22, 2023

Qubit control circuit

Applicant:

National University Corporation Yokohama National University, Yokohama, JP;

Inventors:

Naoki Takeuchi, Yokohama, JP;

Nobuyuki Yoshikawa, Yokohama, JP;

Assignee:

National University Corporation YOKOHAMA National University, Yokohama, JP;

Attorney:

Merchant & Gould P.C.

Primary Examiner:

Arnold M Kinkead

Int. Cl.
CPC ...
H03K 19/195 (2006.01); G06N 10/00 (2022.01); G06N 10/40 (2022.01); H03K 3/38 (2006.01); H03K 17/92 (2006.01); H10N 60/12 (2023.01);
U.S. Cl.
CPC ...
H03K 19/195 (2013.01); G06N 10/00 (2019.01); H03K 3/38 (2013.01); H03K 17/92 (2013.01); H10N 60/12 (2023.02); G06N 10/40 (2022.01);
Abstract

This qubit control circuit includes a first power supply line through which a first excitation current is input, a second power supply line through which a second excitation current is input, a first input signal line through which a first input signal is input, a first pulse train generation circuit that outputs a first pulse train having a repetition frequency corresponding to a frequency of the first excitation current generated by a first Josephson junction on the basis of a frequency of the first excitation current, a waveform of the second excitation current, and a logical state indicated by the first input signal, a second pulse train generation circuit that outputs a second pulse train having a repetition frequency corresponding to the frequency of the first excitation current generated by a second Josephson junction on the basis of the frequency of the first excitation current, and an output pulse train generation circuit that includes a third Josephson junction and outputs an output pulse train in which a waveform of the first pulse train is shaped by a repetition frequency of the second pulse train.

Find Patent Forward Citations

Takeuchi, Naoki. (2026). Qubit control circuit (U.S. Patent No. 12597932). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12597932

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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