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公开(公告)号：US20240086756A1
公开(公告)日：2024-03-14
申请号：US18226785
申请日：2023-07-27
Applicant: Fujitsu Limited , OSAKA UNIVERSITY
Inventor： Jun FUJISAKI , Hirotaka OSHIMA , Keisuke FUJII
Abstract: An information processing apparatus determines a combination of a first data qubit and a second data qubit that further reduces the energy represented by an energy equation. The energy equation includes first to third energy terms. The first energy term is used to identify the first data qubit on which a Z error has occurred. The second energy term is used to identify the second data qubit on which an X error has occurred. The third energy term reduces the energy as the number of data qubits each being a third data qubit on which both a Z error and an X error have simultaneously occurred increases. The information processing apparatus determines that a Y error has occurred on the third data qubit.
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公开(公告)号：US20250053838A1
公开(公告)日：2025-02-13
申请号：US18928769
申请日：2024-10-28
Applicant: FUJITSU LIMITED
Inventor： Masatoshi ISHII , Hirotaka OSHIMA
Abstract: A non-transitory computer-readable recording medium storing a quantum circuit design program for causing a computer to execute processing including: detecting a first quantum gate of which a gate operation is not performed by a quantum device, from a quantum circuit that indicates a gate operation on a plurality of qubits included in the quantum device; determining an equivalent circuit to be mounted, from among a plurality of equivalent circuits that implements a gate operation same as the first quantum gate by a second quantum gate of which a gate operation is performed by the quantum device, based on a relaxation time of a qubit to be operated by the detected first quantum gate; and converting the first quantum gate in the quantum circuit into the determined equivalent circuit.
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公开(公告)号：US20180097407A1
公开(公告)日：2018-04-05
申请号：US15821300
申请日：2017-11-22
Applicant: FUJITSU LIMITED
Inventor： Hirotaka OSHIMA , Satoshi SHIMOKAWA , Akiyoshi UCHIDA
Abstract: A power receiver includes: a secondary-side resonant coil configured to receive electric power from a primary-side resonant coil through magnetic field resonance generated; a capacitor inserted in series in a resonant coil part of the secondary-side resonant coil; a series circuit, coupled in parallel with the capacitor, of a first switch and a second switch; a first rectifier coupled in parallel with the first switch, the first rectifier having a first rectification direction; a second rectifier coupled in parallel with the second switch and having a second rectification direction; a detector configured to detect the electric power received by the secondary-side resonant coil; and a controller configured to adjust phases of a first signal for switching on/off the first switch and of a second signal for switching on/off the second switch to adjust an amount of the electric power received by the secondary-side resonant coil.
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4.发明申请公开(公告)号：US20180287427A1
公开(公告)日：2018-10-04
申请号：US15902395
申请日：2018-02-22
Applicant: FUJITSU LIMITED
Inventor： Hirotaka OSHIMA , Kiyoto MATSUI
Abstract: A power receiving unit includes a secondary resonant coil for receiving electric power from a primary resonant coil using magnetic resonance or electric field resonance, a secondary coil capable of changing a number of turns or a pitch of a winding for receiving the electric power from the secondary resonant coil using electromagnetic induction, a rectification circuit, and a controller. The electric power received by the secondary coil is rectified by the rectification circuit, and transmitted to a DC-DC converter for supplying the electric power to a load circuit. The controller changes the number of turns or the pitch of the winding of the secondary coil such that an input voltage of the DC-DC converter does not exceed an upper limit, based on a magnitude of the electric power received from the primary resonant coil.
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