公开(公告)号：US20240386160A1

公开(公告)日：2024-11-21

申请号：US18651750

申请日：2024-05-01

Applicant: Fujitsu Limited

Inventor： Toshihisa ANAZAWA ,  Satoshi SHIMOKAWA

IPC: G06F30/20

Abstract: An information processing system configured to calculate a combinatorial optimization problem that includes a constraint condition based on an energy function of an Ising model represented by a sum of a cost term and a constraint term that corresponds to the constraint condition, the information processing system including: a processing circuit configured to obtain problem information of the combinatorial optimization problem, calculate, based on the problem information, an expected value of a change amount of the cost term when transition from a solution that satisfies the constraint condition to a solution that does not satisfy the constraint condition occurs, determine a coefficient of the constraint term based on the expected value, and output information of the energy function using the determined coefficient; and a search circuit that searches for a ground state of the Ising model based on the output information.

公开(公告)号：US20160094053A1

公开(公告)日：2016-03-31

申请号：US14962594

申请日：2015-12-08

Applicant: FUJITSU LIMITED

Inventor： Satoshi SHIMOKAWA

IPC: H02J5/00

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025

Abstract: A power transmission apparatus includes a primary coil connected to an AC source; a primary resonance coil configured to receive power from the primary coil; a secondary resonance coil configured to receive power from the primary resonance coil by magnetic field resonance occurred between the primary resonance coil and the secondary resonance coil; a secondary coil configured to receive power from the secondary resonance coil; a phase difference detector detect a phase difference between a phase of voltage supplied to the primary resonance coil and a phase of current flowing through the primary resonance coil; a variable capacitor provided on the primary resonance coil; and a determination part determining a coupling degree between the primary resonance coil and the secondary resonance coil based on a change degree of the phase difference relative to a change amount of capacitance when the capacitance of the variable capacitor changes.

Abstract translation: 电力传输装置包括连接到AC电源的初级线圈; 主谐振线圈，其构造成从所述初级线圈接收电力; 在初级共振线圈和次级谐振线圈之间产生通过磁场共振从主谐振线圈接收电力的次级谐振线圈; 被配置为从所述次级谐振线圈接收电力的次级线圈; 相位差检测器检测提供给初级谐振线圈的电压的相位与流过初级谐振线圈的电流的相位之间的相位差; 设置在主谐振线圈上的可变电容器; 以及确定部分，当可变电容器的电容变化时，基于相位差相对于电容变化量的变化程度来确定初级谐振线圈和次级谐振线圈之间的耦合度。

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

IPC: H02J50/12 ,  H02J5/00 ,  H02M7/06

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J50/40 ,  H02M7/06

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.

公开(公告)号：US20130038282A1

公开(公告)日：2013-02-14

申请号：US13651831

申请日：2012-10-15

Applicant: FUJITSU LIMITED

Inventor： Satoshi SHIMOKAWA

IPC: H02J7/00

CPC classification number: H02J50/12 ,  B60L11/182 ,  B60L11/1833 ,  B60L11/1861 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7072 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/127 ,  Y02T90/14

Abstract: A power reception apparatus includes a plurality of power extraction coils that extract power from a coil being a power supply source, a switch that selects one of the plurality of the power extraction coils and connects the selected power extraction coil to a battery, and a controller that senses a charging state of the battery and changes over the switch. The plurality of the power extraction coils are different from each other in terms of a diameter, the number of turns, or a distance from the coil being the power supply source.

Abstract translation: 电力接收装置包括从作为电源的线圈提取电力的多个电力提取线圈，选择多个功率提取线圈中的一个并将所选择的功率提取线圈连接到电池的开关，以及控制器 感测电池的充电状态并切换开关。 多个功率提取线圈在直径，匝数或与作为电源的线圈的距离方面彼此不同。

公开(公告)号：US20180197678A1

公开(公告)日：2018-07-12

申请号：US15917519

申请日：2018-03-09

Applicant: FUJITSU LIMITED

Inventor： Akiyoshi UCHIDA ,  Kazuyuki OZAKI ,  Masakazu TAGUCHI ,  Satoshi SHIMOKAWA ,  Hiroyasu KAWANO ,  Kiyoto MATSUI

IPC: H01F38/14 ,  H04B5/00 ,  H02J7/02 ,  H02J5/00 ,  B60L11/18 ,  H02J50/60 ,  H02J50/50 ,  H02J50/40 ,  H02J50/12 ,  H02J50/90 ,  H02J50/80

CPC classification number: H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/50 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  Y10T307/305

Abstract: A wireless power transfer system includes a plurality of power sources and at least one power receiver, in which power transfer from the power sources to the power receiver is performed in wireless by using magnetic field resonance or electric field resonance. In the system, one of the plurality of power sources is designated as a master power source and the other one or more power sources are designated as slave power sources. In addition, the master power source controls the plurality of power sources and the at least one power receiver to perform the power transfer. This allows the system to perform the power transfer in an optimum state.

公开(公告)号：US20160049698A1

公开(公告)日：2016-02-18

申请号：US14926743

申请日：2015-10-29

Applicant: FUJITSU LIMITED

Inventor： Hiroyasu KAWANO ,  Akiyoshi UCHIDA ,  Satoshi SHIMOKAWA ,  Kiyoto MATSUI ,  Kazuyuki OZAKI ,  Masakazu TAGUCHI

IPC: H01M10/46 ,  H02J7/02

CPC classification number: H01M10/46 ,  H01M2/022 ,  H01M2220/30 ,  H02J5/005 ,  H02J7/0042 ,  H02J7/02 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/70

Abstract: A rechargeable battery includes: a battery body including a cylindrical outer peripheral side surface; and a power receiving coil wound in at most a single layer around the outer peripheral side surface, and electrically connected to the battery body. The power receiving coil is helically wound around the outer peripheral side surface while forming a space from which the outer peripheral side surface is exposed.

Abstract translation: 可充电电池包括：电池体，包括圆柱形外周侧表面; 以及绕外周侧表面缠绕在最多一层的受电线圈，并且电连接到电池体。 电力接收线圈在形成外周侧表面露出的空间的同时螺旋地缠绕在外周侧面上。

公开(公告)号：US20130147283A1

公开(公告)日：2013-06-13

申请号：US13763901

申请日：2013-02-11

Applicant: Fujitsu Limited

Inventor： Hiroyasu KAWANO ,  Masakazu TAGUCHI ,  Satoshi SHIMOKAWA ,  Akiyoshi UCHIDA ,  Kiyoto MATSUI

IPC: H01F38/14

CPC classification number: H01F38/14 ,  H01F27/346 ,  H02J5/005 ,  H02J50/12 ,  H02J50/40 ,  H02J50/70 ,  H04B5/0037 ,  H04B5/0081

Abstract: A power transmission device includes a first coil and a second coil. The first coil emits a first electromagnetic wave. The second coil is arranged at a position where a center axis of the first coil and a center axis of the second coil are not overlapped to each other and emits a second electromagnetic wave having a strength distribution with a polarity opposite to a polarity of a strength distribution of the first electromagnetic wave.

Abstract translation: 动力传递装置包括第一线圈和第二线圈。 第一线圈发出第一电磁波。 第二线圈布置在第一线圈的中心轴线和第二线圈的中心轴线彼此不重叠的位置处，并且发射具有极性与强度极性相反的强度分布的第二电磁波 第一电磁波的分布。