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1. 发明授权

US11941077B2 Calculating device, calculation program, recording medium, and calculation method 有权
公开(公告)号：US11941077B2
公开(公告)日：2024-03-26
申请号：US17937636
申请日：2022-10-03
申请人： Kabushiki Kaisha Toshiba
发明人： Hayato Goto , Kosuke Tatsumura
IPC分类号： G06F17/11 , G06F9/30
CPC分类号： G06F17/11 , G06F9/3001
摘要： According to one embodiment, a calculating device includes a processor repeating a processing procedure. The processing procedure includes a first variable update and a second variable update. The first variable update includes updating an ith entry of a first variable xi by adding a first function to the ith entry of the first variable xi before the first variable update. The second variable update includes updating the ith entry of the second variable yi by adding a second function and a third function to the ith entry of the second variable yi before the second variable update. The processor performs at least an output of at least one of the ith entry of the first variable xi obtained after the repeating of the processing procedure or a function of the ith entry of the first variable xi obtained after the repeating of the processing procedure.

2. 发明授权

US11803770B2 Search device, search method, computer program product, search system, and arbitrage system 有权
公开(公告)号：US11803770B2
公开(公告)日：2023-10-31
申请号：US18162140
申请日：2023-01-31
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kosuke Tatsumura , Hayato Goto , Masaya Yamasaki , Ryo Hidaka , Yoshisato Sakai
IPC分类号： G06F9/44 , G06N7/01 , G01N15/00 , G06F9/50
CPC分类号： G06N7/01 , G01N15/00 , G06F9/5011 , G01N2015/0003
摘要： A search device updates positions and momentums of a plurality of virtual particles, for each unit time from an initial time to an end time. The search device, for each unit time, calculates, for each of the particles, a position at a target time of a corresponding particle, calculates, for each of a plurality of nodes, a first accumulative value by cumulatively adding positions at the target time of two or more particles corresponding to outgoing two or more directed edges, calculates, for each of the nodes, a second accumulative value by cumulatively adding positions at the target time of two or more particles corresponding to incoming two or more directed edges, and calculates, for each of the particles, a momentum at the target time of a corresponding particle based on the first accumulative value and the second accumulative value.

3. 发明授权

US11741187B2 Calculation device, calculation method, and computer program product 有权
公开(公告)号：US11741187B2
公开(公告)日：2023-08-29
申请号：US17461452
申请日：2021-08-30
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Taro Kanao , Hayato Goto , Ryo Hidaka , Kosuke Tatsumura
IPC分类号： G06F17/11
CPC分类号： G06F17/11
摘要： A calculation device includes a memory and one or more processors coupled to the memory and configured to alternately update, for elements each associated with first and second variables, the first and second variables, sequentially for unit times from an initial time to an end time. In an updating process for each unit time, the one or more processors are configured to: update, for each of the elements, the first variable based on the second variable; when the first variable is smaller than a first value, change the first variable to the first value and change the second variable to a third value; when the first variable is greater than a second value, change the first variable to the second value and change the second variable to the third value; and add an acceleration value calculated by a predetermined computation to the second variable.

4. 发明公开

US20230221962A1 CALCULATING DEVICE 审中-公开
公开(公告)号：US20230221962A1
公开(公告)日：2023-07-13
申请号：US18187514
申请日：2023-03-21
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kosuke Tatsumura , Hayato Goto
IPC分类号： G06F7/544
CPC分类号： G06F7/5443
摘要： According to one embodiment, a calculating device includes a first memory, a second memory, a third memory, a first arithmetic module, a second arithmetic module, a first conductive line electrically connecting a first output terminal of the first memory and a first input terminal of the first arithmetic module, a second conductive line electrically connecting a second output terminal of the first memory and a first input terminal of the second arithmetic module, a third conductive line electrically connecting a first output terminal of the second memory and a second input terminal of the second arithmetic module, a fourth conductive line electrically connecting a first output terminal of the third memory and a third input terminal of the second arithmetic module, and a fifth conductive line electrically connecting a first output terminal of the second arithmetic module and a second input terminal of the first arithmetic module.

5. 发明授权

US11093581B2 Optimization problem solving calculation apparatus 有权
公开(公告)号：US11093581B2
公开(公告)日：2021-08-17
申请号：US16289084
申请日：2019-02-28
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kosuke Tatsumura , Hayato Goto
IPC分类号： G06F17/16 , G06F17/13
摘要： A calculation apparatus according to an embodiment includes matrix multiplication circuitry, time evolution circuitry, management circuitry, and output circuitry. The matrix multiplication circuitry calculates N second intermediate variables at a first time point by matrix multiplication between N (N>=2) first intermediate variables at the first time point and a preset coefficient matrix in N rows and N columns. The time evolution circuitry calculates N first variables at a second time point and N first intermediate variables at the second time point, the second time point being a time point following one sampling period after the first time point. The management circuitry increments time point from a start time point for each sampling period and controls the above circuitry to perform a process for each time point. The output circuitry outputs N first variables at a preset end time point.

6. 发明授权

US10817304B2 Calculating device 有权
公开(公告)号：US10817304B2
公开(公告)日：2020-10-27
申请号：US16118646
申请日：2018-08-31
申请人： Kabushiki Kaisha Toshiba
发明人： Kosuke Tatsumura , Hayato Goto
IPC分类号： G06F9/38 , G06F7/72 , G06F9/30 , G06F7/57
摘要： According to one embodiment, a calculating device includes a first memory, a second memory, a third memory, a first arithmetic module, a second arithmetic module, a first conductive line electrically connecting a first output terminal of the first memory and a first input terminal of the first arithmetic module, a second conductive line electrically connecting a second output terminal of the first memory and a first input terminal of the second arithmetic module, a third conductive line electrically connecting a first output terminal of the second memory and a second input terminal of the second arithmetic module, a fourth conductive line electrically connecting a first output terminal of the third memory and a third input terminal of the second arithmetic module, and a fifth conductive line electrically connecting a first output terminal of the second arithmetic module and a second input terminal of the first arithmetic module.

7. 发明申请

US20180335973A1 COMPUTING DEVICE 审中-公开
公开(公告)号：US20180335973A1
公开(公告)日：2018-11-22
申请号：US15924690
申请日：2018-03-19
申请人： Kabushiki Kaisha Toshiba
发明人： Rie SATO , Koichi Mizushima , Hayato Goto
IPC分类号： G06F3/06
摘要： According to one embodiment, a computing device includes a first magnetic section, a first reading section, a memory section, and a computing section. The first reading section is configured to output a first signal corresponding to a magnetization state of a partial region of the first magnetic section. The computing section is configured to perform computation using the first signal when first information stored in the memory section is in a first state, and to perform computation using a reverse signal of the first signal when the first information is in a second state.

8. 发明授权

US10084436B2 Computing device comprising a josephson junction 有权
公开(公告)号：US10084436B2
公开(公告)日：2018-09-25
申请号：US15443277
申请日：2017-02-27
申请人： Kabushiki Kaisha Toshiba
发明人： Hayato Goto
IPC分类号： H03K3/38 , H01L39/02 , H01L39/22 , H03H11/04 , H03B15/00 , H01P5/02 , G06N99/00
CPC分类号： H03K3/38 , G06N10/00 , H01L39/025 , H01L39/223 , H01P5/02 , H03B15/003 , H03H11/04
摘要： According to one embodiment, a computing device includes a first conductive body, a first element, a second element, a first transmission line and a second transmission line. The first conductive body spreads along a first plane. The first element includes a Josephson junction and is separated from the first conductive body in a direction crossing the first plane. The second element includes a Josephson junction. The second element is separated from the first conductive body in the direction crossing the first plane. A direction from the first element toward the second element is along a first direction along the first plane. The first transmission line generates an electromagnetic field applied to the first element. The second transmission line generates an electromagnetic field applied to the second element.

9. 发明授权

US09130598B2 Decoding apparatus, decoding method, and decoding program for use in quantum error correction 有权
标题翻译：用于量子纠错的解码装置，解码方法和解码程序
公开(公告)号：US09130598B2
公开(公告)日：2015-09-08
申请号：US14065612
申请日：2013-10-29
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Hayato Goto , Hironori Uchikawa , Kouichi Ichimura , Satoshi Nakamura , Mamiko Kujiraoka
IPC分类号： H03M13/41 , H03M13/39 , H03M13/45
CPC分类号： H03M13/45 , G06N99/002 , H03M13/3905 , H03M13/3961 , H03M13/41 , H03M13/4107
摘要： According to one embodiment, a decoding apparatus includes first and second acquisition units, a holding unit, a calculation unit, and a decision unit. The first acquisition unit acquires first measurement values of measurements performed to measure an eigenvalue of an encoded Z operator to a first encoded qubit of the two encoded qubits. The second acquisition unit acquires second measurement values of measurements performed to measure an eigenvalue of an encoded X operator to a second encoded qubit of the two encoded qubits. The holding unit holds error probabilities for the first measurement values and the second measurement values. The calculation unit calculates probabilities for measurement values of an encoded Bell measurement by using the first measurement values, the second measurement values, and the error probabilities. The decision unit decides measurement values of the encoded Bell measurement, based on the calculated probabilities.
摘要翻译：根据一个实施例，解码装置包括第一和第二采集单元，保持单元，计算单元和判定单元。第一采集单元获取用于测量经编码的Z运算符的特征值到第二编码量子位的第一编码量子位的测量的第一测量值。第二采集单元获取用于测量编码X运算符的特征值到两个编码量子位的第二编码量子位的测量的第二测量值。保持单元保持第一测量值和第二测量值的误差概率。计算单元通过使用第一测量值，第二测量值和误差概率来计算编码贝尔测量的测量值的概率。决定单元基于所计算的概率来确定编码贝尔测量的测量值。

10. 发明授权

US12105769B2 Optimization problem solving calculation apparatus 有权
公开(公告)号：US12105769B2
公开(公告)日：2024-10-01
申请号：US18335274
申请日：2023-06-15
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kosuke Tatsumura , Hayato Goto
IPC分类号： G06F17/16 , G06F17/11 , G06F17/13
CPC分类号： G06F17/16 , G06F17/11 , G06F17/13
摘要： A calculation apparatus according to an embodiment includes matrix multiplication circuitry, time evolution circuitry, management circuitry, and output circuitry. The matrix multiplication circuitry calculates N second intermediate variables at a first time point by matrix multiplication between N (N>=2) first intermediate variables at the first time point and a preset coefficient matrix in N rows and N columns. The time evolution circuitry calculates N first variables at a second time point and N first intermediate variables at the second time point, the second time point being a time point following one sampling period after the first time point. The management circuitry increments time point from a start time point for each sampling period and controls the above circuitry to perform a process for each time point. The output circuitry outputs N first variables at a preset end time point.

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