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21. 发明申请

US20130249309A1 POWER RECEIVING DEVICE AND POWER FEEDING SYSTEM 有权
标题翻译：电力接收装置和电力馈电系统
公开(公告)号：US20130249309A1
公开(公告)日：2013-09-26
申请号：US13804883
申请日：2013-03-14
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Misako MIWA , Koichiro Kamata , Shuhei Maeda
IPC分类号： H04B5/00
CPC分类号： H04B5/0037 , B60L11/182 , 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.
摘要翻译：提供能够同时进行通信和供电的电力接收装置和供电系统。此外，提供能够在供电期间稳定地进行通信的受电装置和供电系统。本发明的一个实施例涉及一种电力接收装置，其包括用于通信和馈电的天线，其接收AC电力;整流电路，将包括调制信号的所接收的AC电力整流为DC电力;平滑电路，直流电力，存储平滑的直流电力的蓄电装置，分析交流电源中包含的调制信号的通信控制单元和位于天线与整流电路之间的变压器，并改变交流电的参考电位电源和馈电装置。

22. 发明申请

US20130241301A1 POWER TRANSMISSION DEVICE AND POWER FEEDING SYSTEM 有权
标题翻译：电力传输装置和电力馈电系统
公开(公告)号：US20130241301A1
公开(公告)日：2013-09-19
申请号：US13789864
申请日：2013-03-08
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
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。

23. 发明授权

US10461585B2 Power-receiving device, wireless power-feeding system including power-receiving device, and wireless communication system including power-receiving device 有权
公开(公告)号：US10461585B2
公开(公告)日：2019-10-29
申请号：US15884698
申请日：2018-01-31
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Koichiro Kamata
IPC分类号： H02J50/00 , H02J50/12 , H02J50/40 , H02J7/02 , H02J7/00 , H02J17/00 , H04B5/00 , H02J5/00
摘要： When a portable electronic appliance is provided with two systems, a wireless power-feeding system and a wireless communication system, each system requires two power-receiving devices, a coil and an antenna, leading to a problem of increased electronic appliance size and cost. Wireless power feeding employs the resonance method and uses a resonance coil using the resonance method and a power-receiving coil that receives power from the resonance coil. At least one of the resonance coil and the power-receiving coil can also be used as an antenna for wireless communication. Thus, a power-receiving device that can be used for two systems, wireless power feeding and wireless communication, can be provided.

24. 发明授权

US10044224B2 Power feeding device, wireless power feeding system using the same and wireless power feeding method 有权
公开(公告)号：US10044224B2
公开(公告)日：2018-08-07
申请号：US15182844
申请日：2016-06-15
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Koichiro Kamata , Misako Sato , Shuhei Maeda
IPC分类号： H01F27/42 , H01F37/00 , H01F38/00 , H02J50/10 , H04B1/44 , H02J50/90 , H02J50/40 , H02J5/00 , H02J17/00 , H02J50/12 , H02J50/80 , H02J50/20 , H02J7/02 , H02J50/05
摘要： An object is to provide a power feeding device, a power feeding system, and a power feeding method which are more convenient for a power feeding user at the power receiving end. The power feeding device includes a means of controlling a frequency of a power signal transmitted to a power receiver, based on a proportion of signals, among power signals output to an antenna circuit, that return from the power receiver to the antenna circuit without feeding power to the power receiver.

25. 发明授权

US09923417B2 Wireless power feeding system 有权
公开(公告)号：US09923417B2
公开(公告)日：2018-03-20
申请号：US14795109
申请日：2015-07-09
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Koichiro Kamata
IPC分类号： H02J7/00 , H02J50/12 , H02J50/90 , H02J7/02 , H02J7/04 , H02J5/00
CPC分类号： H02J50/12 , H02J5/005 , H02J7/025 , H02J7/045 , H02J50/90
摘要： An object is to provide a wireless power feeding system using the resonance method, which can increase power transmission efficiency. The wireless power feeding system includes a power transmission coil electrically connected to a high-frequency power supply, a power transmission resonance coil for transmitting power by electromagnetic induction with the power transmission coil, a power reception resonance coil for exciting high-frequency power by magnetic resonance, a load coil for exciting high-frequency power by electromagnetic induction with the power reception resonance coil, a load, and a variable element. The load includes a microprocessor for controlling the impedance of the load, a battery charger, and a battery. The battery charger is configured to charge the battery with the high-frequency power excited by the load coil.

26. 发明授权

US09819256B2 Semiconductor device 有权
公开(公告)号：US09819256B2
公开(公告)日：2017-11-14
申请号：US14632104
申请日：2015-02-26
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Koichiro Kamata
IPC分类号： H02J17/00 , H02M1/32 , H02M7/217 , G06K19/07 , G06K19/077 , H01L27/02 , H01L27/12 , H02H9/04
CPC分类号： H02M1/32 , G06K19/0701 , G06K19/0715 , G06K19/07749 , H01L27/0248 , H01L27/0285 , H01L27/1225 , H02H9/046 , H02J7/025 , H02J17/00 , H02J50/12 , H02M7/217
摘要： To prevent damage on an element even when a voltage high enough to break the element is input. A semiconductor device of the invention operates with a first voltage and includes a protection circuit which changes the value of the first voltage when the absolute value of the first voltage is higher than a reference value. The protection circuit includes: a control signal generation circuit generating a second voltage based on the first voltage and outputting the generated second voltage; and a voltage control circuit. The voltage control circuit includes a transistor which has a source, a drain, and a gate, and which is turned on or off depending on the second voltage input to the gate and thus controls whether the value of the first voltage is changed based on the amount of current flowing between the source and the drain. The transistor also includes an oxide semiconductor layer.

27. 发明授权

US09768319B2 Modulation circuit and semiconductor device including the same 有权
公开(公告)号：US09768319B2
公开(公告)日：2017-09-19
申请号：US15159182
申请日：2016-05-19
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Koichiro Kamata
IPC分类号： H01L29/78 , H01L29/786 , H03C1/36 , G06K19/077 , H01L23/66 , H01L27/06 , H01L49/02
CPC分类号： H01L29/7869 , G06K19/07775 , H01L23/66 , H01L27/0629 , H01L28/20 , H01L28/40 , H01L29/78693 , H01L29/78696 , H01L2223/6677 , H03C1/36 , H04M2201/04 , H04M2201/06
摘要： A modulation circuit includes a load and a transistor serving as a switch. The transistor has an oxide semiconductor layer in which hydrogen concentration is 5×1019/cm3 or less. The off-state current of the transistor is 1×10−13 A or less. A modulation circuit includes a load, a transistor serving as a switch, and a diode. The load, the transistor, and the diode are connected in series between the terminals of an antenna. The transistor has an oxide semiconductor layer in which hydrogen concentration is 5×1019/cm3 or less. An off-state current of the transistor is 1×10−13 A or less. On/off of the transistor is controlled in accordance with a signal inputted to a gate of the transistor. The load is a resistor, a capacitor, or a combination of a resistor and a capacitor.

28. 发明授权

US09046482B2 Gas sensor and method for manufacturing the gas sensor 有权
标题翻译：气体传感器及制造气体传感器的方法
公开(公告)号：US09046482B2
公开(公告)日：2015-06-02
申请号：US14097677
申请日：2013-12-05
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Koichiro Kamata
IPC分类号： G01N27/414 , H01L27/12 , H01L29/66
CPC分类号： G01N27/4141 , H01L27/12 , H01L27/1225 , H01L29/66969
摘要： It is an object to provide a gas sensor which is formed by a simple manufacturing process. Another object is to provide a gas sensor whose manufacturing cost is reduced. A transistor which includes an oxide semiconductor layer in contact with a gas and which serves as a detector element of a gas sensor, and a transistor which includes an oxide semiconductor layer in contact with a film having a gas barrier property and which forms a detection circuit are formed over one substrate by the same process, whereby a gas sensor using these transistors may be formed.
摘要翻译：本发明的目的是提供一种通过简单的制造工艺形成的气体传感器。另一个目的是提供一种制造成本降低的气体传感器。一种晶体管，包括与气体接触并用作气体传感器的检测器元件的氧化物半导体层，以及晶体管，其包括与具有阻气性的膜接触的氧化物半导体层，并形成检测电路通过相同的工艺形成在一个衬底上，由此可以形成使用这些晶体管的气体传感器。

29. 发明申请

US20140071768A1 SEMICONDUCTOR DEVICE AND METHOD FOR DRIVING SEMICONDUCTOR DEVICE 有权
标题翻译：用于驱动半导体器件的半导体器件和方法
公开(公告)号：US20140071768A1
公开(公告)日：2014-03-13
申请号：US14079682
申请日：2013-11-14
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Koichiro Kamata
IPC分类号： G11C16/24 , G11C16/26
CPC分类号： G11C16/24 , G11C11/404 , G11C11/565 , G11C16/26 , H01L27/11521 , H01L27/1225 , H01L29/7869
摘要： A semiconductor device with a reduced area and capable of higher integration and larger storage capacity is provided. A multi-valued memory cell including a reading transistor which includes a back gate electrode and a writing transistor is used. Data is written by turning on the writing transistor so that a potential according to the data is supplied to a node where one of a source electrode and a drain electrode of the writing transistor and a gate electrode of the reading transistor are electrically connected to each other, and then turning off the writing transistor and holding a predetermined potential in the node. Data is read by supplying a reading control potential to a control signal line connected to one of a source electrode and a drain electrode of the reading transistor, and then detecting potential change of a reading signal line.
摘要翻译：提供了具有减小面积并且能够更高集成度和更大存储容量的半导体器件。使用包括包括背栅极和写入晶体管的读取晶体管的多值存储单元。通过接通写入晶体管来写入数据，使得根据数据的电位被提供给写入晶体管的源电极和漏电极之一以及读取晶体管的栅极电极彼此电连接的节点，然后关闭写入晶体管并保持节点中的预定电位。通过将读取控制电位提供给连接到读取晶体管的源电极和漏极之一的控制信号线，然后检测读取信号线的电位变化来读取数据。

30. 发明申请

US20140003146A1 SIGNAL PROCESSING CIRCUIT 有权
标题翻译：信号处理电路
公开(公告)号：US20140003146A1
公开(公告)日：2014-01-02
申请号：US13923696
申请日：2013-06-21
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Seiichi Yoneda , Atsuo Isobe , Yuji Iwaki , Koichiro Kamata , Yasuyuki Takahashi , Masumi Nomura
IPC分类号： G11C16/30
CPC分类号： G11C16/30 , G06F1/3203 , G06F1/3275 , G11C7/106 , G11C7/1087 , G11C7/20 , G11C2207/2227 , Y02D10/13 , Y02D10/14
摘要： A signal processing circuit that consumes less power by stop of supply of power for a short time. In a storage element, before supply of power is stopped, data in a first storage circuit is stored to a second storage circuit, and the data is read from the second storage circuit and a verification circuit can determine whether or not the data in the second storage circuit matches the data in the first storage circuit. After supply of power is restarted, the data in the second storage circuit is stored to the first storage circuit, and the verification circuit can determine whether or not the data in the second storage circuit matches the data in the first storage circuit. In such a manner, verification can be performed without requiring a time for verification.
摘要翻译：信号处理电路通过在短时间内停止供电而消耗较少的功率。在存储元件中，在停止供电之前，将第一存储电路中的数据存储到第二存储电路，并且从第二存储电路读取数据，并且验证电路可以确定第二存储电路中的数据存储电路与第一存储电路中的数据匹配。在重新开始供电之后，第二存储电路中的数据被存储到第一存储电路，并且验证电路可以确定第二存储电路中的数据是否与第一存储电路中的数据匹配。以这种方式，可以执行验证，而不需要验证时间。

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