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公开(公告)号：US09893534B2
公开(公告)日：2018-02-13
申请号：US14095434
申请日：2013-12-03
Applicant: ADVANTEST CORPORATION
Inventor： Yuki Endo , Yasuo Furukawa
CPC classification number: H02J50/50 , H02J5/005 , H02J50/12 , Y10T307/747
Abstract: A relay antenna includes a power relay coil. An automatic tuning assist circuit is coupled with the relay antenna. The automatic tuning assist circuit has first and second terminals coupled with the relay antenna. Multiple switches are arranged together with N (N represents an integer) auxiliary capacitors between the first terminal and the second terminal. A controller is configured to switch on and off each of the multiple switches in synchronization with an electric power signal transmitted from a wireless power supply apparatus.
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公开(公告)号：US09640317B2
公开(公告)日：2017-05-02
申请号：US14200888
申请日：2014-03-07
Applicant: ADVANTEST CORPORATION
Inventor： Yuki Endo , Yasuo Furukawa
CPC classification number: H01F38/14 , B60L11/182 , B60L2210/20 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/12 , H03H11/30 , H04B5/0037 , H04B5/0075 , Y02T10/7005 , Y02T10/7072 , Y02T10/725 , Y02T90/122 , Y02T90/127 , Y02T90/14
Abstract: An automatic tuning assist circuit is coupled with a transmission antenna. The automatic tuning assist circuit injects a correction current into, or otherwise draws the correction current from, the transmission antenna. An H-bridge circuit is arranged between a first terminal and a second terminal coupled with the transmission antenna. The H-bridge circuit is switched on and off with a frequency that is equal to the frequency of a driving voltage. A third auxiliary coil is arranged between the output terminals of the H-bridge circuit.
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公开(公告)号：US09966798B2
公开(公告)日：2018-05-08
申请号：US14255234
申请日：2014-04-17
Applicant: ADVANTEST CORPORATION
Inventor： Yuki Endo , Yasuo Furukawa
Abstract: An automatic tuning assist circuit is coupled in series with a transmission antenna. A first switch and a second switch are arranged in series between a first terminal and a second terminal of the automatic tuning assist circuit. Furthermore, a third switch and a fourth switch are arranged in series between the first terminal and the second terminal. A first auxiliary capacitor is arranged between a connection node that connects the first switch and the second switch and a connection node that connects the third switch and the fourth switch. A control unit switches the first switch through the fourth switch with the same frequency as that of the driving voltage, and with a predetermined phase difference with respect to the driving voltage.
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公开(公告)号：US09882550B2
公开(公告)日：2018-01-30
申请号：US14502426
申请日：2014-09-30
Applicant: ADVANTEST CORPORATION
Inventor： Yuki Endo , Yasuo Furukawa
CPC classification number: H03J7/04 , H01F38/14 , H02J5/005 , H02J17/00 , H02J50/10 , H02J50/12 , H02J50/70 , H04B5/0037 , H04B5/0081
Abstract: A wireless power transmitting apparatus transmits an electric power signal comprising any one from among an electric field, a magnetic field, and an electromagnetic field to a wireless power receiving apparatus. A reflector coil is arranged at a distance from a radiation coil. A driving power supply supplies a driving current to the radiation coil. A first phase control circuit controls the phase of the current that flows through the reflector coil so as to stabilize, to a predetermined value, the phase difference between the current that flows through the reflector coil and the current that flows through the radiation coil.
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公开(公告)号：US20190041470A1
公开(公告)日：2019-02-07
申请号：US16043396
申请日：2018-07-24
Applicant: Advantest Corporation
Inventor： Yuki Endo , Aritomo Kikuchi , Shigeo Nakamura
CPC classification number: G01R33/0023 , G01R33/09 , G01R33/093
Abstract: [Object] Provided is a magnetic sensor testing device capable of preventing performance of an electromagnet from greatly changing due to heat applied to a magnetic sensor.[Solving Means] A magnetic sensor testing device includes electromagnets 50 and 60 that apply a magnetic field to a magnetic sensor, temperature regulators 30 and 40 that regulate a temperature of the magnetic sensor by locally applying heat to the magnetic sensor, and a controller that controls the electromagnets 50 and 60 and the temperature regulators 30 and 40, in which the controller tests the magnetic sensor in a state in which the magnetic field is applied to the magnetic sensor by the electromagnets 50 and 60 while the heat is applied to the magnetic sensor by the temperature regulators 30 and 40.
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Patent Agency Ranking
公开(公告)号：US09589721B2
公开(公告)日：2017-03-07
申请号：US14200723
申请日：2014-03-07
Applicant: ADVANTEST CORPORATION
Inventor： Yuki Endo , Yasuo Furukawa
CPC classification number: H01F38/14 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/12 , H04B5/0037 , H04B5/0075
Abstract: An automatic tuning assist circuit is coupled with a transmission antenna. The transmission antenna injects a first correction current into, or otherwise draws the first correction current from, the transmission antenna. In the first state, the first auxiliary coil is coupled with the transmission antenna. In this state, the first correction current IA, which corresponds to a current that flows through the first auxiliary coil, is injected into or drawn from the transmission antenna. In the second state, the first auxiliary coil is decoupled from the transmission antenna. In this state, the current that flows through the first auxiliary coil flows through a current path which is independent of the transmission antenna. The state is switched between the first state and the second state with the same frequency as that of the driving voltage.
Abstract translation: 自动调谐辅助电路与发送天线耦合。 发射天线将第一校正电流从发射天线注入或以其他方式绘制第一校正电流。 在第一状态下，第一辅助线圈与发送天线耦合。 在这种状态下，对应于流过第一辅助线圈的电流的第一校正电流IA被注入到发射天线或从发射天线引出。 在第二状态下，第一辅助线圈与发送天线分离。 在这种状态下，流过第一辅助线圈的电流流过独立于发送天线的电流通路。 该状态以与驱动电压相同的频率在第一状态和第二状态之间切换。
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公开(公告)号：US10823788B2
公开(公告)日：2020-11-03
申请号：US16043396
申请日：2018-07-24
Applicant: Advantest Corporation
Inventor： Yuki Endo , Aritomo Kikuchi , Shigeo Nakamura
IPC: G01N27/72 , G01R33/00 , G01R33/09 , G01R33/035
Abstract: Provided is a magnetic sensor testing device capable of preventing performance of an electromagnet from greatly changing due to heat applied to a magnetic sensor.A magnetic sensor testing device includes electromagnets 50 and 60 that apply a magnetic field to a magnetic sensor, temperature regulators 30 and 40 that regulate a temperature of the magnetic sensor by locally applying heat to the magnetic sensor, and a controller that controls the electromagnets 50 and 60 and the temperature regulators 30 and 40, in which the controller tests the magnetic sensor in a state in which the magnetic field is applied to the magnetic sensor by the electromagnets 50 and 60 while the heat is applied to the magnetic sensor by the temperature regulators 30 and 40.
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公开(公告)号：US09871413B2
公开(公告)日：2018-01-16
申请号：US14625630
申请日：2015-02-19
Applicant: ADVANTEST CORPORATION
Inventor： Yuki Endo , Yasuo Furukawa
Abstract: A first switch is arranged between one end of a reception antenna and one end of a load. A second switch is arranged between the aforementioned one end of the reception antenna and the other end thereof. A switch control circuit controls switching on and off the first switch and the second switch. The switch control circuit is structured to change the ratio of the on time of the first switch with respect to the period of an electric power signal.
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公开(公告)号：US09742201B2
公开(公告)日：2017-08-22
申请号：US14469378
申请日：2014-08-26
Applicant: ADVANTEST CORPORATION
Inventor： Yuki Endo , Yasuo Furukawa
Abstract: A wireless power transmitting apparatus transmits an electric power signal comprising any one from among an electric field, a magnetic field, and an electromagnetic field to a wireless power receiving apparatus. A transmission antenna includes a transmission coil. An automatic tuning assist circuit is coupled in series with the transmission antenna. A power supply applies an AC driving voltage across both terminals of a series circuit that comprises the transmission antenna and the automatic tuning assist circuit. A first controller switches on and off multiple switches in synchronization with the driving voltage. A voltage monitoring unit monitors the voltage that develops at an auxiliary capacitor.
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公开(公告)号：US09329215B2
公开(公告)日：2016-05-03
申请号：US14319914
申请日：2014-06-30
Applicant: ADVANTEST CORPORATION
Inventor： Yuki Endo , Yasuo Furukawa , Tomoaki Ueda
IPC: G01R27/02
CPC classification number: G01R27/02
Abstract: A measurement auxiliary circuit is configured to form a resonance circuit together with a detection target. An ATAC is coupled with the resonance circuit. A signal generator applies an AC probe signal VS to the resonance circuit. After the impedance measurement apparatus enters a stable state, an impedance detection unit measures a voltage at at least one node and/or a current that flows through at least one current path. The impedance detection unit detects the impedance of the detection target based on the measurement value.
Abstract translation: 测量辅助电路被配置为与检测目标一起形成谐振电路。 ATAC与谐振电路耦合。 信号发生器将AC探针信号VS施加到谐振电路。 在阻抗测量装置进入稳定状态之后，阻抗检测单元测量至少一个节点处的电压和/或流经至少一个电流路径的电流。 阻抗检测单元基于测量值来检测检测对象物的阻抗。
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