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公开(公告)号：US20210287732A1
公开(公告)日：2021-09-16
申请号：US17337552
申请日：2021-06-03
发明人： Tomoaki ATSUMI , Kiyoshi KATO , Shuhei MAEDA
IPC分类号： G11C11/4094 , H01L27/108 , H01L29/786
摘要： A semiconductor device whose operating speed is increased is provided. The semiconductor device includes a write word line, a read word line, a write bit line, a read bit line, a first wiring, and a memory cell. The memory cell includes three transistors of a single conductivity type and a capacitor. Gates of the three transistors are electrically connected to the write word line, a first terminal of the capacitor, and the read word line, respectively. A second terminal of the capacitor is electrically connected to the read bit line. A source and a drain of one transistor are electrically connected to the write bit line and the gate of another transistor, respectively. Two of the three transistors are electrically connected in series between the read bit line and the first wiring. A channel formation region of each of the three transistors includes, for example, a metal oxide layer.
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2.发明申请公开(公告)号：US20170040891A1
公开(公告)日：2017-02-09
申请号：US15331029
申请日：2016-10-21
发明人： Kei TAKAHASHI , Koichiro KAMATA , Misako MIWA , Shuhei MAEDA
摘要： A circuit capable of keeping input impedance constant is provided. Further, a circuit which can contribute to improvement in power feeding efficiency in power feeding by a magnetic resonance method is provided. A voltage (a former voltage) proportional to a direct-current voltage input to a DC-DC converter from the outside and a voltage (a latter voltage) proportional to a current input from the outside are detected, and the ratio of the former voltage and the latter voltage are held constant. Accordingly, input impedance can be kept constant. Further, impedance conversion is performed in the DC-DC converter. Thus, even when the battery in which power feeding is performed exists on an output side of the DC-DC converter, input impedance can be kept constant. Consequently, power can be supplied to a power receiving device including the DC-DC converter and the battery with high power feeding efficiency by a magnetic resonance method.
摘要翻译： 提供能够保持输入阻抗恒定的电路。 此外，提供了可以通过磁共振方法有助于提高馈电的馈电效率的电路。 检测与从外部输入到DC-DC转换器的直流电压成比例的电压（前一个电压）和与从外部输入的电流成比例的电压（后一个电压），并且前一个电压 并且后一电压保持恒定。 因此，输入阻抗可以保持恒定。 此外，在DC-DC转换器中进行阻抗转换。 因此，即使在DC-DC转换器的输出侧存在进行供电的电池，也可以保持输入阻抗恒定。 因此，可以通过磁共振方式向具有高功率馈送效率的DC-DC转换器和电池的电力接收装置供电。
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公开(公告)号：US20130241301A1
公开(公告)日：2013-09-19
申请号：US13789864
申请日：2013-03-08
发明人： Shuhei MAEDA , Koichiro Kamata , Misako Miwa
IPC分类号： H04B5/00
CPC分类号： H04B5/0037 , H04B5/0093
摘要： There is provided a power transmission device which includes an antenna receiving a reflected power from a power receiving device, a power detection unit detecting a value of the reflected power received by the antenna, a control circuit determining a power adjustment value in accordance with the value of the reflected power, a power adjustment unit to which the reflected power whose value is detected is input and which adjusts impedance in accordance with the power adjustment value determined by the control circuit, and a demodulation circuit to which the reflected power having the power adjustment value determined by the control circuit is input via the power adjustment unit having the adjusted impedance, and relates to a power feeding system including the power transmission device.
摘要翻译： 提供了一种电力传输装置，其包括从电力接收装置接收反射功率的天线，检测由天线接收的反射功率的值的功率检测单元，根据该值确定功率调整值的控制电路 反射功率的功率调节单元，输入检测值的反射功率的功率调节单元，并且根据由控制电路确定的功率调整值调整阻抗;以及解调电路，具有功率调整的反射功率 由控制电路确定的值通过具有调节阻抗的功率调节单元输入，并且涉及包括电力传输装置的馈电系统。
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公开(公告)号：US20200265887A1
公开(公告)日：2020-08-20
申请号：US16759013
申请日：2018-11-12
发明人： Tomoaki ATSUMI , Kiyoshi KATO , Shuhei MAEDA
IPC分类号： G11C11/4094 , H01L29/786 , H01L27/108
摘要： A semiconductor device whose operating speed is increased is provided. The semiconductor device includes a write word line, a read word line, a write bit line, a read bit line, a first wiring, and a memory cell. The memory cell includes three transistors of a single conductivity type and a capacitor. Gates of the three transistors are electrically connected to the write word line, a first terminal of the capacitor, and the read word line, respectively. A second terminal of the capacitor is electrically connected to the read bit line. A source and a drain of one transistor are electrically connected to the write bit line and the gate of another transistor, respectively. Two of the three transistors are electrically connected in series between the read bit line and the first wiring. A channel formation region of each of the three transistors includes, for example, a metal oxide layer.
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公开(公告)号：US20170237470A1
公开(公告)日：2017-08-17
申请号：US15583446
申请日：2017-05-01
发明人： Misako MIWA , Koichiro KAMATA , Shuhei MAEDA
CPC分类号： H04B5/0037 , B60L53/12 , H02J7/025 , H02J50/20 , H02J50/80 , H04B5/0093
摘要： A power receiving device and a power feeding system which are capable of performing communication and power feeding at the same time are provided. Further, a power receiving device and a power feeding system which are capable of stably performing communication during power feeding are provided. One embodiment of the present invention relates to a power receiving device which includes an antenna for communication and power feeding that receives AC power, a rectifier circuit that rectifies the received AC power including the modulation signal into DC power, a smoothing circuit that smoothes the resulting DC power, a power storage device that stores the smoothed DC power, a communication control unit that analyzes the modulation signal included in the AC power, and a transformer that is positioned between the antenna and the rectifier circuit and changes a reference potential of the AC power, and a power feeding device.
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公开(公告)号：US20150214918A1
公开(公告)日：2015-07-30
申请号：US14680169
申请日：2015-04-07
发明人： Koichiro KAMATA , Shinya OKANO , Misako SATO , Shuhei MAEDA
CPC分类号： H03H7/38 , H01F38/14 , H02J5/005 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/80 , H03C1/36 , H03D1/02
摘要： A resonant power feeding system that can provide high power transmission efficiency between a power feeding device and a power reception device without dynamically controlling the oscillation frequency in accordance with the distance between the power feeding device and the power reception device. High power transmission efficiency between the power feeding device and the power reception device is obtained by addition of a structure for adjusting the matching condition to both the power reception device and the power feeding device. Specifically, a transmission-reception circuit and a matching circuit are provided in both the power reception device and the power feeding device, and wireless signals for adjusting the matching circuit are transmitted and received through a resonant coil. Thus, the power feeding device can efficiently supply power to the power reception device without adjusting the oscillation frequency.
摘要翻译： 一种谐振馈电系统，其能够在馈电装置和受电装置之间提供高功率传输效率，而不需要根据供电装置和受电装置之间的距离动态地控制振荡频率。 通过添加用于调节与受电装置和供电装置的匹配条件的结构，可以获得供电装置和受电装置之间的高功率传输效率。 具体地，在受电装置和供电装置中设置发送接收电路和匹配电路，通过谐振线圈发送接收用于调整匹配电路的无线信号。 因此，馈电装置可以在不调整振荡频率的情况下有效地向受电装置供电。
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公开(公告)号：US20160356645A1
公开(公告)日：2016-12-08
申请号：US15173893
申请日：2016-06-06
发明人： Seiichi YONEDA , Shuhei MAEDA
CPC分类号： H04N5/144 , H01L2224/48091 , H01L2224/73265 , H04N5/3454 , H04N5/374 , H01L2924/00014
摘要： The imaging device includes a pixel array and first to seventh circuits. The first and second circuits select a pixel in the pixel array. The third circuit performs difference calculation between imaging data of the first frame and the second frame in the selected pixels. The fourth and the fifth circuits output addresses of the row and column of the pixels which has been subjected to the difference calculation. A row address and a column address for determining a specific region of the pixel array are stored in the sixth circuit. The seventh circuit compares coordinates included in the specific region with coordinates of pixels where a difference is detected. If the coordinates of the pixels where a difference is detected are included in the specific region which has been stored in the sixth circuit, imaging data is obtained again and is output to the external devices.
摘要翻译： 成像装置包括像素阵列和第一至第七电路。 第一和第二电路选择像素阵列中的像素。 第三电路在所选择的像素中执行第一帧和第二帧的成像数据之间的差分计算。 第四和第五电路输出已经经过差分计算的像素的行和列的地址。 用于确定像素阵列的特定区域的行地址和列地址被存储在第六电路中。 第七电路将特定区域中包括的坐标与检测到差异的像素的坐标进行比较。 如果检测到差异的像素的坐标被包括在已经存储在第六电路中的特定区域中，则再次获得成像数据并将其输出到外部设备。
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公开(公告)号：US20150008758A1
公开(公告)日：2015-01-08
申请号：US14456058
申请日：2014-08-11
发明人： Yutaka SHIONOIRI , Koichiro KAMATA , Misako SATO , Shuhei MAEDA
IPC分类号： H02J17/00
摘要： An object is to provide a power feeding system and a power feeding method which are more convenient for a power feeding user at the power receiving end, without causing increases in complexity and size of devices. An object is to provide a power feeding system and a power feeding method which also allow a power feeding provider (a company) which feeds power (at the power transmitting end) to supply power without waste. A power feeding device which wirelessly supplies power to a power receiver detects the position and the resonant frequency of the power receiver by receiving a position and resonant frequency detection signal using a plurality of sub-carriers having different frequencies from the power receiver, and controls the frequency of a power signal to be transmitted to the power receiver on the basis of the information. An efficient power feeding service can be offered by transmitting a power signal to the power receiver at an optimum frequency for high power transmission efficiency.
摘要翻译： 本发明的目的是提供一种供电系统和馈电方法，其对于供电用户在电力接收端更方便，而不会增加设备的复杂性和尺寸。 本发明的目的是提供一种馈电系统和馈电方法，其还允许馈电供应商（在发电端发电）供电而不浪费电力。 向功率接收器无线供电的供电装置通过使用具有与电力接收器不同的频率的多个子载波接收位置和谐振频率检测信号来检测电力接收器的位置和谐振频率，并且控制 根据该信息将电力信号的频率发送到电力接收器。 通过以最佳频率向功率接收器发送功率信号以实现高功率传输效率，可以提供有效的馈电服务。
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公开(公告)号：US20140375263A1
公开(公告)日：2014-12-25
申请号：US14481435
申请日：2014-09-09
发明人： Yutaka SHIONOIRI , Koichiro KAMATA , Misako SATO , Shuhei MAEDA
CPC分类号： H02J50/12 , H02J7/025 , H02J50/20 , H02J50/40 , H02J50/80 , H02J50/90 , H04B5/0037 , H04B5/0093
摘要： An object is to provide a power feeding system and a power feeding method which are more convenient for a power feeding user at the power receiving end. An object is to provide a power feeding system and a power feeding method which also allow a power feeding provider (a company) which feeds power (at the power transmitting end) to supply power without waste. A power feeding device which wirelessly supplies power to a power receiver detects the position and the resonant frequency of the power receiver to be supplied with power, and controls the frequency of a power signal to be transmitted to the power receiver on the basis of the information. An efficient power feeding service can be offered by transmitting a power signal to the power receiver at an optimum frequency for high power transmission efficiency.
摘要翻译： 本发明的目的是提供一种供电系统和馈电方法，其对于电力接收端的馈电用户更为方便。 本发明的目的是提供一种馈电系统和馈电方法，其还允许馈电供应商（在发电端发电）供电而不浪费电力。 向功率接收器无线供电的供电装置检测供电电源的位置和谐振频率，并根据信息控制发送到电力接收器的电力信号的频率 。 通过以最佳频率向功率接收器发送功率信号以实现高功率传输效率，可以提供有效的馈电服务。
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公开(公告)号：US20220385108A1
公开(公告)日：2022-12-01
申请号：US17887305
申请日：2022-08-12
发明人： Koichiro KAMATA , Misako SATO , Shuhei MAEDA
摘要： A wireless power feed system with high transfer efficiency of electric power is disclosed. The wireless power feed system includes a power feeding device and a power receiving device, wherein the power feeding device includes a first electromagnetic coupling coil that is connected to an AC power source via a directional coupler; a first resonant coil; a switch connected to the opposite ends of the first resonant coil; a control circuit which conducts switching on/off of the switch based on a parameter of an amplitude of a reflective wave detected by the directional coupler; and an analog-digital converter provided between the first electromagnetic coupling coil and the control circuit; and the power receiving device includes a second resonant coil; and a second electromagnetic coupling coil, and wherein the first electromagnetic coupling coil is provided between the first resonant coil and the second resonant coil.
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