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    • 2. 发明申请
    • POWER CONVERSION DEVICE
    • 电源转换器件
    • US20140233280A1
    • 2014-08-21
    • US14342858
    • 2012-09-06
    • Masao SaitoTakamasa NakamuraKouji YamamotoJunichi ItohYoshiya Ohnuma
    • Masao SaitoTakamasa NakamuraKouji YamamotoJunichi ItohYoshiya Ohnuma
    • H02M5/458
    • H02M5/458H02M5/293H02M7/217
    • An electric power conversion device comprises a conversion circuit having bi-directionally switchable plural pairs of switching elements connected to respective phases and converting an inputted AC power into an AC electric power. A first switching time is calculated using detected voltages detected by voltage sensors and an output command value. A second switching time is calculated using a carrier and the first switching time. A control signal generating section generates control signals to switch on and off of the switching elements using the first switching time and second switching time. In a case where a state is transited from the first switching time to the second switching time, a controller tarns off one of on state switching elements of either one of an upper arm circuit or a lower arm circuit and maintains on state of the other of the on state switching elements of the other arm circuit.
    • 电力转换装置包括具有双向可切换的多对开关元件的转换电路,其连接到各相,并将输入的AC电力转换成AC电力。 使用由电压传感器检测的检测电压和输出指令值来计算第一切换时间。 使用载波和第一切换时间来计算第二切换时间。 控制信号生成部使用第一切换时间和第二切换时间来生成开关元件的接通和断开的控制信号。 在状态从第一开关时间转换到第二切换时间的情况下,控制器断开上臂电路或下臂电路中的任一个的导通状态开关元件中的一个,并且保持另一个的状态 另一臂电路的导通状态开关元件。
    • 5. 发明申请
    • AC CONVERTER, AC CONVERTING METHOD, AND STORAGE MEDIUM
    • 交流转换器,交流转换方法和存储介质
    • US20120300511A1
    • 2012-11-29
    • US13298454
    • 2011-11-17
    • Junichi ITOHHiroshi YAMAMOTOTomokazu SADA
    • Junichi ITOHHiroshi YAMAMOTOTomokazu SADA
    • H02M5/458
    • H02M5/297H02M5/293
    • An AC converter includes: a switching section 101, which converts the input AC voltage in response to a control signal and which outputs the converted voltage to a phase that has been selected in accordance with the control signal; a filter section 104, which filters out high frequency components from the converted voltage, thereby converting the converted voltage into the output AC voltage; and a switching control section 103, which performs a pulse density modulation on a phase-by-phase basis and in response to a reference signal with the frequency f1, which is associated with the output AC voltage of each phase, synchronously with a zero cross of the input AC voltage, thereby generating the control signal according a pulse generation status by the pulse density modulation and the polarity of the input AC voltage and sending out the control signal to the switching section 101.
    • AC转换器包括:切换部分101,其响应于控制信号转换输入的AC电压,并将转换的电压输出到根据控制信号选择的相位; 滤波器部分104,其从转换的电压滤除高频分量,从而将转换的电压转换成输出AC电压; 以及切换控制部103,其以相位为基础并且响应于与零相交叉的与每相的输出AC电压相关联的频率f1的参考信号执行脉冲密度调制 的输入交流电压,从而通过脉冲密度调制和输入交流电压的极性根据脉冲产生状态产生控制信号,并将控制信号发送到切换部分101。
    • 7. 发明授权
    • Optical apparatus having function for testing shake compensation by
using external comunication
    • 具有通过外部通信测试抖动补偿功能的光学装置
    • US5652919A
    • 1997-07-29
    • US514671
    • 1995-08-14
    • Junichi Itoh
    • Junichi Itoh
    • G03B17/00G03B5/00G03B43/00G03B7/08
    • G03B5/00G03B43/00G03B2205/0007G03B2205/0053G03B2217/005
    • In order to allow a quantitative measurement of the operation of an image blurring correction function by adding an effective test function to a camera, an image blurring correction mechanism detects the shaken states of the camera with respect to two orthogonal axes around the photographing optical axis of the camera. The image blurring correction mechanism is arranged in the optical path between a photographing lens and a film and has two axes of freedom corresponding to the above two axes. An external communication (control) terminal is used for external communication with a main microcomputer in the camera. When a test mode command is externally input to the camera via the external communication terminal, a sub-microcomputer in a shake compensation circuit performs specific operation control, through the main microcomputer, to execute a shake compensation function with respect to the image blurring correction mechanism.
    • 为了通过向相机添加有效的测试功能来允许对图像模糊校正功能的操作的定量测量,图像模糊校正机构检测相机相对于拍摄光轴周围的两个正交轴的摇动状态 相机。 图像模糊校正机构布置在拍摄镜头和胶片之间的光路中,并且具有与上述两个轴对应的两个自由轴。 外部通信(控制)端子用于与相机中的主微型计算机的外部通信。 当通过外部通信终端向摄像机外部输入测试模式命令时,抖动补偿电路中的子微计算机通过主微型计算机执行特定的操作控制,以执行关于图像模糊校正机构的抖动补偿功能 。
    • 8. 发明授权
    • Data printing apparatus
    • 数据打印设备
    • US5469237A
    • 1995-11-21
    • US164402
    • 1993-12-08
    • Junichi ItohYuta SatoMinoru MatsuzakiMasaharu HamadaYuji Imai
    • Junichi ItohYuta SatoMinoru MatsuzakiMasaharu HamadaYuji Imai
    • G03B17/24G03B17/52
    • G03B17/24G03B2217/243
    • A data printing apparatus of this invention controls the emission timing or the emission interval of a light-emitting means on the basis of a signal according to traveling of a sheet film along a traveling path so as to print data free from blurring of characters or a variation in interval between characters on the sheet film having no perforations. After an exposure operation is ended, the apparatus feeds the sheet film from an exposure position along a spool wall. Light corresponding to digital numerals representing a date is emitted by light-emitting elements, and the date to be printed by the light-emitting elements is focused on the sheet film by an optical system. The date on the sheet film is printed during traveling of the sheet film along the spool wall. The apparatus also includes a photoreflector, arranged in a traveling chamber of the film, for detecting an emulsion portion on which an object image from a photographing lens is exposed, and the remaining frame portion on the basis of a difference in reflectance, and a timer for measuring a moving time from when the frame portion is detected by the photoreflector until the emulsion portion is detected thereby, and controls the emission timings of the light-emitting elements on the basis of the moving time.
    • 本发明的数据打印装置基于根据片材沿着行进路径行进的信号来控制发光装置的发射定时或发射间隔,以便打印没有字符模糊的数据或 在没有穿孔的薄膜上的字符之间的间隔的变化。 在曝光操作结束之后,该装置沿着卷轴壁从曝光位置供给薄膜。 对应于表示日期的数字数字的光由发光元件发射,并且由发光元件打印的日期通过光学系统聚焦在薄膜上。 在薄膜沿着卷轴壁行进期间印刷薄膜上的日期。 该装置还包括布置在胶片的移动室中的光反射器,用于检测来自拍摄镜头的物体图像被暴露在其上的乳液部分,并且基于反射率差异的剩余帧部分和定时器 用于测量从光反射器检测到帧部分直到检测到乳剂部分为止的移动时间,并且基于移动时间来控制发光元件的发射定时。
    • 10. 发明授权
    • Automatic focusing camera
    • 自动对焦相机
    • US4873543A
    • 1989-10-10
    • US106574
    • 1987-10-08
    • Minoru MatsuzakiJunichi ItohYouji Watanabe
    • Minoru MatsuzakiJunichi ItohYouji Watanabe
    • G03B13/36G02B7/09G02B7/28G02B7/34G02B7/36
    • G02B7/36
    • An automatic focusing camera includes a sensor for detecting an amount and a direction of difference between an image forming position of light from an object being photographed and a film surface to drive a taking lens in response to the measured outputs and focus determining capability which gives a decision of in-focus when the amount of difference is less than a first automatic focusing threshold. A focusing operation is achieved such that, comparing the amount of difference determined by the sensor with a second automatic focusing threshold of a standard value which is larger than the first automatic focusing threshold, when the amount is less than the second threshold and a direction of difference last measured and that presently measured are the same, a taking lens driving is continued to complete a focusing operation and when the directions are different from each other, the measurement is resumed after the next driving of the taking lens even when the amount is less than the second threshold.
    • 自动聚焦照相机包括:传感器,用于响应于测量的输出和焦点确定能力,检测来自被拍摄物体的光的图像形成位置和胶片表面之间的差异的量与驱动拍摄镜头之间的差异方向, 当差异量小于第一自动聚焦阈值时的对焦的决定。 实现聚焦操作,使得将由传感器确定的差异量与大于第一自动聚焦阈值的标准值的第二自动聚焦阈值进行比较,当该量小于第二阈值时, 最近测量的差异和当前测量的是相同的,继续进行拍摄镜头驱动以完成聚焦操作,并且当方向不同时,即使在少量的拍摄镜头的下一次驾驶之后,仍然恢复测量 比第二个阈值。