会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 13. 发明授权
    • Divider circuit
    • 分频电路
    • US08278974B2
    • 2012-10-02
    • US13078219
    • 2011-04-01
    • Kei TakahashiYoshiaki Ito
    • Kei TakahashiYoshiaki Ito
    • H03K21/00
    • H03K23/54G06F1/06H03K21/12H03K21/406
    • A divider circuit includes a shift register which generates 2X (X is a natural number greater than or equal to 2) pulse signals in accordance with a first clock signal or a second clock signal and outputs them, and a divided signal output circuit which generates a signal to be a third clock signal with a cycle X times longer than a cycle of the first clock signal in accordance with the 2X pulse signals and outputs it. The divided signal output circuit includes X first transistors which control whether voltage of the signal to be the third clock signal is set to first voltage; and X second transistors which control whether voltage of the signal to be the third clock signal is set to second voltage.
    • 分频电路包括根据第一时钟信号或第二时钟信号产生2X(X为大于或等于2的自然数)脉冲信号的移位寄存器,并输出它们;以及分频信号输出电路, 根据2X脉冲信号,信号成为第三时钟信号,其周期比第一时钟信号的周期长十倍,并将其输出。 分频信号输出电路包括:X个第一晶体管,其控制作为第三时钟信号的信号的电压是否被设置为第一电压; 以及X第二晶体管,其控制作为第三时钟信号的信号的电压是否被设定为第二电压。
    • 15. 发明申请
    • Lighting Device
    • 照明装置
    • US20120043911A1
    • 2012-02-23
    • US13213395
    • 2011-08-19
    • Kei Takahashi
    • Kei Takahashi
    • H05B37/02
    • G09G3/20G09G3/3225G09G3/34G09G2320/041G09G2320/043G09G2330/00G09G2360/147H01L51/50H05B37/02Y02B20/42
    • A lighting device whose power conversion efficiency is improved by suppression of fluctuation in luminance of a light-emitting element and deterioration of the light-emitting element due to a change in temperature and a change over time and whose power consumption is reduced is provided. The disclosed invention is a lighting device that has a function of correcting a change in temperature and a change over time and includes at least one switching regulator in a driver portion. Constant current drive is performed on light-emitting elements and monitor light-emitting elements are used, so that highly-efficient output voltage which is corrected to have an optimal level is applied to the light-emitting elements and stable drive is performed for a long time. Power conversion efficiency is improved by a switching regulator, so that the total power consumption of the lighting device is reduced.
    • 提供了通过抑制发光元件的亮度波动并且由于温度变化和随时间的变化以及其功耗降低而导致的发光元件的劣化而提高了功率转换效率的照明装置。 所公开的发明是具有校正温度变化和随时间变化的功能的照明装置,并且在驱动器部分中包括至少一个开关调节器。 在发光元件上进行恒流驱动,并且使用监视器发光元件,从而将被校正为具有最佳电平的高效输出电压施加到发光元件,并且执行稳定的驱动 时间。 通过开关调节器改善电力转换效率,从而降低照明装置的总功耗。
    • 16. 发明申请
    • DC/DC CONVERTER, POWER SUPPLY CIRCUIT, AND SEMICONDUCTOR DEVICE
    • DC / DC转换器,电源电路和半导体器件
    • US20110304311A1
    • 2011-12-15
    • US13154827
    • 2011-06-07
    • Kei TakahashiJun KoyamaMasato Ishii
    • Kei TakahashiJun KoyamaMasato Ishii
    • G05F3/08
    • H02M3/156H01L27/1225H01L27/1251H02M3/155Y02B70/1483
    • Provided is a DC-DC converter with improved power conversion efficiency. A transistor which is incorporated in the DC-DC converter and functions as a switching element for controlling output power includes, in its channel formation region, a semiconductor material having a wide band gap and significantly small off current compared with silicon. The transistor further comprises a back gate electrode, in addition to a general gate electrode, and a back gate control circuit for controlling a potential applied to the back gate electrode in accordance with the output power from the DC-DC converter. The control of the potential applied to the back gate electrode by the back gate control circuit enables the threshold voltage to decrease the on-state resistance when the output power is high and to increase the off-state current when the output power is low.
    • 提供了具有改善的功率转换效率的DC-DC转换器。 结合在DC-DC转换器中并用作用于控制输出功率的开关元件的晶体管在其沟道形成区域中包括与硅相比具有宽带隙和显着小的截止电流的半导体材料。 该晶体管还包括除普通栅电极之外的背栅电极和用于根据来自DC-DC转换器的输出功率来控制施加到背栅极的电位的背栅控制电路。 通过背栅极控制电路控制施加到背栅电极的电位,能够在输出功率较高时使阈值电压降低导通电阻,并且在输出功率较低时增加截止电流。
    • 18. 发明授权
    • Semiconductor display device
    • 半导体显示装置
    • US07977678B2
    • 2011-07-12
    • US12336996
    • 2008-12-17
    • Shunpei YamazakiJun KoyamaYoshifumi TanadaHiroyuki MiyakeKei Takahashi
    • Shunpei YamazakiJun KoyamaYoshifumi TanadaHiroyuki MiyakeKei Takahashi
    • H01L29/04
    • H01L27/3276H01L27/124H01L27/1266
    • A semiconductor display device using a light-emitting element, which can suppress luminance unevenness among pixels due to the potential drop of a wiring, is provided. Power supply lines to which a power supply potential is supplied are electrically connected to each other in a display region where a plurality of pixels are arranged. Further, an interlayer insulating film is formed over a wiring (an auxiliary power supply line) for electrically connecting the power supply lines to each other in the display region and a gate electrode of a transistor included in a pixel; and the power supply lines are formed over the interlayer insulating film which is formed over the auxiliary power supply line and the gate electrode. Furthermore, a wiring (an auxiliary wiring) formed over the interlayer insulating film is electrically or directly connected to the auxiliary power supply line.
    • 提供一种使用能够抑制由于布线的电位下降引起的像素之间的亮度不均匀的发光元件的半导体显示装置。 供给电源电位的电源线在布置有多个像素的显示区域中彼此电连接。 此外,在用于将显示区域中的电源线彼此电连接并且包括在像素中的晶体管的栅电极的布线(辅助电源线)上形成层间绝缘膜; 并且在辅助电源线和栅电极之间形成的层间绝缘膜上形成电源线。 此外,形成在层间绝缘膜上的布线(辅助布线)与辅助电源线电连接或直接连接。
    • 20. 发明申请
    • Semiconductor Device and RFID Tag Using the Semiconductor Device
    • 半导体器件和使用半导体器件的RFID标签
    • US20100085030A1
    • 2010-04-08
    • US12571938
    • 2009-10-01
    • Hiroki InoueKei Takahashi
    • Hiroki InoueKei Takahashi
    • G05F3/02
    • G05F3/24G06K19/0701G06K19/07749
    • A semiconductor device monitors a voltage between a reference potential and an input potential and obtains a constant output potential regardless of a value of the voltage, after the voltage exceeds a predetermined threshold voltage in such a manner that the semiconductor device divides a voltage between the reference potential and the input potential using a plurality of first non-linear elements and at least one linear element to constantly generate a first bias voltage regardless of a value of the voltage, divides a voltage between the reference potential and the input potential using a plurality of second non-linear elements with reference to the first bias voltage to constantly generate a second bias voltage regardless of a value of the voltage, and determines the output potential with reference to the second bias voltage.
    • 半导体器件监视参考电位和输入电位之间的电压,并且在电压超过预定阈值电压之后,获得恒定的输出电位,而不管电压值如何,使得半导体器件将参考电压 使用多个第一非线性元件和至少一个线性元件的电位和输入电位以恒定地产生第一偏置电压而不管电压的值,使用多个第一非线性元件和多个第一非线性元件来分配参考电位和输入电位之间的电压 参考第一偏置电压的第二非线性元件,以恒定地产生第二偏置电压,而不管电压的值,并且参考第二偏置电压确定输出电位。