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41. 发明授权

US09461646B2 Semiconductor device, electronic component, and electronic device 有权
标题翻译：半导体装置，电子部件和电子装置
公开(公告)号：US09461646B2
公开(公告)日：2016-10-04
申请号：US15007350
申请日：2016-01-27
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Munehiro Kozuma , Takayuki Ikeda , Yoshiyuki Kurokawa , Takeshi Aoki , Yuki Okamoto
IPC分类号： H03K19/177 , H03K19/00 , H03K19/0948
CPC分类号： H03K19/0013 , H03K19/0948 , H03K19/17728 , H03K19/1776
摘要： A semiconductor device suitable for low-voltage driving. The semiconductor device includes a first transistor, a second transistor, a power supply line, a circuit, and a memory circuit. The first transistor controls electrical continuity between the circuit and the power supply line. The memory circuit stores data for setting a gate potential of the first transistor. The second transistor controls electrical continuity between an output node of the memory circuit and a gate of the first transistor. The second transistor is a transistor with an ultralow off-state current, for example, an oxide semiconductor transistor. In a period for operating the circuit, a first potential is input to the power supply line and the second transistor is turned off. In a period for updating the gate potential of the first transistor, a second potential is input to the power supply line. The second potential is higher than the first potential.
摘要翻译：适用于低压驱动的半导体器件。半导体器件包括第一晶体管，第二晶体管，电源线，电路和存储器电路。第一个晶体管控制电路和电源线之间的电气连续性。存储电路存储用于设置第一晶体管的栅极电位的数据。第二晶体管控制存储电路的输出节点和第一晶体管的栅极之间的电连续性。第二晶体管是具有超低截止电流的晶体管，例如氧化物半导体晶体管。在用于操作电路的时段中，第一电位被输入到电源线并且第二晶体管被截止。在用于更新第一晶体管的栅极电位的时段中，第二电位被输入到电源线。第二个潜力高于第一个潜力。

42. 发明授权

US11990778B2 Secondary battery protection circuit and secondary battery anomaly detection system 有权
公开(公告)号：US11990778B2
公开(公告)日：2024-05-21
申请号：US17258957
申请日：2019-06-27
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Takayuki Ikeda , Munehiro Kozuma , Takanori Matsuzaki , Ryota Tajima , Shunpei Yamazaki , Yuki Okamoto
IPC分类号： H02J7/00 , H01M10/42
CPC分类号： H02J7/0031 , H01M10/4235 , H02J7/0036
摘要： Safety is secured in such a manner that an anomaly of a secondary battery is detected with a protection circuit, for example, a phenomenon that lowers the safety of a secondary battery, particularly a micro short circuit, is detected early, and users are warned or the use of the secondary battery is stopped. A secondary battery protection circuit includes a first memory circuit electrically connected to a secondary battery, a comparison circuit electrically connected to the first memory circuit, a second memory circuit electrically connected to the comparison circuit, and a power-off switch electrically connected to the second memory circuit. The power-off switch is electrically connected to the secondary battery, and the first memory circuit includes a first transistor including an oxide semiconductor and retains a voltage value of the secondary battery in an analog manner.

43. 发明授权

US11870393B2 Semiconductor device and electronic device each having oscillator 有权
公开(公告)号：US11870393B2
公开(公告)日：2024-01-09
申请号：US16868688
申请日：2020-05-07
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Yuki Okamoto , Yoshiyuki Kurokawa
IPC分类号： H03B5/06 , H01L27/092 , H01L27/12 , H03K3/014 , H01L29/786 , H03K3/03
CPC分类号： H03B5/06 , H01L27/092 , H01L27/1207 , H01L27/1225 , H01L27/1255 , H01L29/7869 , H03K3/014 , H03K3/0315
摘要： An oscillator capable of quick startup is provided. A transistor is provided between an output terminal of a certain stage inverter and an input terminal of the following stage inverter included in the voltage controlled oscillator. With the use of the on resistance of the transistor, the oscillation frequency of the clock signal is controlled. While supply of the power supply voltage is stopped, a signal that is input to the input terminal of the inverter just before supply of the power supply voltage is stopped is stored by turning off the transistor. This operation makes it possible to immediately output a clock signal that has the same frequency as that before supply of the power supply voltage is stopped at the time when the power supply voltage is supplied again.

44. 发明授权

US11823733B2 Memory device, semiconductor device, and electronic device each including redundant memory cell 有权
公开(公告)号：US11823733B2
公开(公告)日：2023-11-21
申请号：US17600379
申请日：2020-04-17
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Hitoshi Kunitake , Yuto Yakubo , Takanori Matsuzaki , Yuki Okamoto , Tatsuya Onuki
IPC分类号： G11C5/06 , G11C11/408 , G11C11/4093 , G11C11/4096 , G11C29/00
CPC分类号： G11C11/4085 , G11C11/4093 , G11C11/4096 , G11C29/789
摘要： A memory device includes m memory cell blocks, m×(k+1) word lines, n bit lines, and a word line driver circuit (m, k, and n are each an integer greater than or equal to 1). The memory cell block includes memory cells of (k+1) rows×n columns, and each of the memory cells is electrically connected to a word line and a bit line. The word line driver circuit has a function of outputting signals to m×k word lines that are selected from m×(k+1) word lines by using a switch transistor, and selection information is written to a gate of the switch transistor by using a transistor having a low off-state current. The memory cells of k rows×n columns included in the memory cell block are normal memory cells, and each of the memory cell blocks includes redundant memory cells of one row×n columns.

45. 发明授权

US11664786B2 Hysteresis comparator, semiconductor device, and power storage device 有权
公开(公告)号：US11664786B2
公开(公告)日：2023-05-30
申请号：US17836283
申请日：2022-06-09
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Yuki Okamoto , Kei Takahashi
IPC分类号： H03K5/08 , H03K3/0233 , H01M10/48 , H02J7/02 , H03K17/22 , H03K19/0185 , G06G7/186 , H03K19/20
CPC分类号： H03K3/02337 , G06G7/186 , H01M10/48 , H02J7/02 , H03K5/084 , H03K17/223 , H03K19/018557 , H03K19/20 , H03K2217/96074
摘要： To provide a hysteresis comparator having a small circuit area and low power consumption. The hysteresis comparator includes a comparator, a switch, a first capacitor, a second capacitor, and a logic circuit. A first terminal of the switch is electrically connected to one of a pair of conductive regions of the first capacitor, one of a pair of conductive regions of the second capacitor, and a first input terminal of the comparator. An output terminal of the comparator is electrically connected to an input terminal of the logic circuit. An output terminal of the logic circuit is electrically connected to the other of the pair of conductive regions of the second capacitor. The logic circuit has a function of generating an inverted signal of a signal input to the input terminal of the logic circuit and outputting the inverted signal to the output terminal of the logic circuit. A reference potential is input to the first input terminal of the comparator and the reference potential is held by the switch. Due to change in the potential of the output terminal of the comparator, the reference potential is changed by capacitive coupling of the second capacitor.

46. 发明授权

US11308833B2 Information terminal 有权
公开(公告)号：US11308833B2
公开(公告)日：2022-04-19
申请号：US17014638
申请日：2020-09-08
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Yuki Okamoto
IPC分类号： G09G3/3233 , G09G3/36 , G09G3/00 , H01L27/12 , H01L27/32 , H01L29/786
摘要： An information terminal capable of switching display and non-display of images by strain. The information terminal includes a display portion and a strain sensor. The display portion includes a liquid crystal element, a light-emitting element, and a first and a second transistors. The strain sensor includes a strain sensor element and a resistor. The first transistor has a function of controlling current flowing into the light-emitting element. The strain sensor element has a function as a variable resistor. A first terminal of the strain sensor element is electrically connected to a first terminal of the resistor. A gate of the first transistor is electrically connected to a first terminal of the strain sensor element via the second transistor.

47. 发明授权

US11281285B2 Method for controlling power supply in semiconductor device 有权
公开(公告)号：US11281285B2
公开(公告)日：2022-03-22
申请号：US16789480
申请日：2020-02-13
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Yuki Okamoto , Yoshiyuki Kurokawa
IPC分类号： G06F1/00 , G06F1/3234 , G06F1/3228 , G11C11/412 , G06F1/3287 , G06F1/3293 , G06F1/3296 , G06F13/42 , G11C11/40 , H03K19/0175
摘要： A method for controlling power supply in a semiconductor device including a CPU and a PLD which can hold data even in an off state is provided. The semiconductor device includes a processor, a programmable logic device, and a state control circuit. The programmable logic device includes a first nonvolatile memory circuit and has a function of holding data obtained by arithmetic processing of the programmable logic device when it is turned off. The state control circuit obtains data on the amount of a task performed by the programmable logic device in accordance with an operation of the processor. The programmable logic device detects the state of progress of the task and outputs a signal to the state control circuit. The state control circuit monitors the amount of the task and the state of progress of the task and turns off the programmable logic device when the task is completed.

48. 发明授权

US11227543B2 Touch panel system, electronic device, and semiconductor device having a neural network 有权
公开(公告)号：US11227543B2
公开(公告)日：2022-01-18
申请号：US16489716
申请日：2018-02-26
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Shintaro Harada , Yoshiyuki Kurokawa , Takeshi Aoki , Yuki Okamoto , Hiroki Inoue , Koji Kusunoki , Yosuke Tsukamoto , Katsuki Yanagawa , Kei Takahashi , Shunpei Yamazaki
IPC分类号： G06F3/041 , G09G3/3225 , G06F1/16 , G06K9/00 , G06N3/04 , G06N3/08 , G09G5/22 , G09G3/36
摘要： An electronic device capable of efficiently recognizing a handwritten character is provided.
The electronic device includes a first circuit, a display portion, and a touch sensor. The first circuit includes a neural network. The display portion includes a flexible display. The touch sensor has the function of outputting an input handwritten character as image information to the first circuit. The first circuit has the function of analyzing the image information and converting the image information into character information, and a function of displaying an image including the character information on the display portion. The analysis is performed by inference through the use of the neural network.

49. 发明授权

US10937387B2 Information terminal 有权
公开(公告)号：US10937387B2
公开(公告)日：2021-03-02
申请号：US15656725
申请日：2017-07-21
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Yuki Okamoto
IPC分类号： G09G5/10 , G09G3/36 , H01L27/32 , G02F1/1335 , G02F1/1368 , G09G3/3233 , H01L51/00 , G02F1/1333 , G02F1/1362 , H01L27/12 , H01L29/786
摘要： An information terminal capable of automatically adjusting the brightness of a display portion in accordance with bending of the display portion is provided. The information terminal includes a display portion that includes a first pixel, a second pixel, and a sensor element. The first pixel includes a liquid crystal element. The second pixel includes a light-emitting element. The sensor element includes a first bend sensor whose resistance is changed in accordance with bending of the display portion in a convex direction and a second bend sensor whose resistance is changed in accordance with bending of the display portion in a concave direction. The luminance of the light-emitting element is controlled in accordance with an output of the sensor element.

50. 发明授权

US10923059B2 Operation method of electronic device 有权
公开(公告)号：US10923059B2
公开(公告)日：2021-02-16
申请号：US16680848
申请日：2019-11-12
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Yuki Okamoto
IPC分类号： G09G3/36 , G09G3/32 , G09G3/30 , G09G3/20
摘要： An operation method of a display device with high visibility is to be provided. The display device is an electronic device including a first display element, a second display element, an optical sensor, and a gain calculation circuit. In the electronic device, the illuminance of external light is obtained with the optical sensor, and depending on the illuminance, images displayed using the first display element and the second display element are corrected. The gain calculation circuit obtains the illuminance and calculates a gain value depending on the illuminance. In particular, the gain value is calculated for each of the first display element and the second display element. Furthermore, the gain calculation circuit performs dimming and toning on image data displayed using the first display element and the second display element by multiplying the image data by the gain values or values corresponding to the gain values.

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