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    Frequency up and down converter
    1.
    发明授权
    Frequency up and down converter 有权
    频率上下转换器

    公开(公告)号：US08818318B2

    公开(公告)日：2014-08-26

    申请号：US13481186

    申请日：2012-05-25

    申请人： Young Jin Kim ,  Jin Young Lee ,  Soo Young Huh ,  Sung Yeong Son ,  Sang Youb Lee ,  Jeonghoon Lee ,  Shin Ill Chang

    发明人： Young Jin Kim ,  Jin Young Lee ,  Soo Young Huh ,  Sung Yeong Son ,  Sang Youb Lee ,  Jeonghoon Lee ,  Shin Ill Chang

    IPC分类号： H04B1/28 ,  H03D7/14 ,  H03D7/16

    CPC分类号： H03D7/165 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03D2200/0082

    摘要： A frequency up and down converter, in which, when down converting a high frequency signal into an intermediate frequency signal or up converting an intermediate frequency signal into a high frequency signal by controlling switching elements using a local oscillator signal, a signal with a frequency to be converted is controlled a number of times during one cycle of the local oscillator signal, whereby the local oscillator signal with a frequency lower than an original frequency may be used. Transistors are added in parallel to switching transistors disposed in a frequency down conversion unit or a frequency up conversion unit, and local oscillator signals with predetermined phases and pulse widths are provided to the gates of the transistors such that a high frequency signal or an intermediate frequency signal is transferred to an output terminal at least two times during one cycle of a local oscillator signal.

    摘要翻译： 一种上下变频器，其中，当通过使用本地振荡器信号控制开关元件将高频信号下变频为中频信号或将中频信号转换为高频信号时，将频率为 在本地振荡器信号的一个周期期间被控制多次，从而可以使用具有低于原始频率的频率的本地振荡器信号。 与设置在降频转换单元或上变频单元中的开关晶体管并联地加入晶体管，并且将具有预定相位和脉冲宽度的本地振荡器信号提供给晶体管的栅极，使得高频信号或中频 信号在本地振荡器信号的一个周期期间被传送到输出端子至少两次。

    High resolution time-of-flight distance measurement device based on femtosecond laser
    5.
    发明授权
    High resolution time-of-flight distance measurement device based on femtosecond laser 有权
    基于飞秒激光的高分辨率飞行距离测距装置

    公开(公告)号：US08670108B2

    公开(公告)日：2014-03-11

    申请号：US13253484

    申请日：2011-10-05

    申请人： Seung Woo Kim ,  Joo Hyung Lee ,  Young Jin Kim

    发明人： Seung Woo Kim ,  Joo Hyung Lee ,  Young Jin Kim

    IPC分类号： G01C3/08

    CPC分类号： G01S7/4865 ,  G01B11/026 ,  G01S7/4811 ,  G01S17/10

    摘要： Disclosed is a high resolution time-of-flight distance measurement device based on a femtosecond laser, including a femtosecond laser light source, a polarization beam splitter, a balanced optical cross-correlator in which second harmonic pulses are generated using reference light and measurement light, wherein the second harmonic pulse that was primarily generated is incident on a first photodetector and the second harmonic pulse that was secondarily generated is incident on a second photodetector, so that a difference in intensity of the second harmonic pulses is output, thus resolving the time interval of the pulse laser, a controller for controlling the repetition rate of the femtosecond laser, and a converter for measuring the repetition rate of the femtosecond laser controlled so that the pulses uniformly overlap by means of the controller, using a frequency counter traceable to a time/frequency standard, so that a measured value is converted into distance information.

    摘要翻译： 公开了一种基于飞秒激光器的高分辨率飞行时间距离测量装置，包括飞秒激光光源，偏振分束器，平衡光交叉相关器，其中使用参考光和测量光产生二次谐波脉冲 其中主要产生的二次谐波脉冲入射到第一光电检测器上，并且二次产生的二次谐波脉冲入射到第二光电检测器上，从而输出二次谐波脉冲的强度差，从而解决时间 脉冲激光器的间隔，用于控制飞秒激光器的重复率的控制器，以及用于测量飞秒激光器的重复率的转换器，其被控制，使得脉冲通过控制器均匀地重叠，使用可追溯到 时间/频率标准，使得测量值被转换成距离信息。

    Ice dispensing technology
    7.
    发明授权
    Ice dispensing technology 有权
    冰分配技术

    公开(公告)号：US08240156B2

    公开(公告)日：2012-08-14

    申请号：US12488628

    申请日：2009-06-22

    申请人： Seung Do Han ,  Ho Youn Lee ,  Young Jin Kim ,  Tae Hee Lee ,  Sung Yong Shin

    发明人： Seung Do Han ,  Ho Youn Lee ,  Young Jin Kim ,  Tae Hee Lee ,  Sung Yong Shin

    IPC分类号： F25C1/00

    CPC分类号： F25C5/20 ,  F25C5/22 ,  F25C2600/02 ,  F25C2600/04

    摘要： An ice-making device that includes a duct through which ice is dispensed and a duct-covering part for opening and closing the duct. An ice conveying part conveys the ice dispensed through the duct. A driving speed of the ice conveying part increases for a previously set initial driving time when the dispensing of the ice starts, and the ice conveying part is driven at a previously set target speed when the initial driving time elapses.

    摘要翻译： 一种制冰装置，其包括分配冰的管道和用于打开和关闭管道的管道覆盖部分。 冰传送部分传送通过管道分配的冰。 当冰分配开始时，预先设定的初始驾驶时间，冰传送部分的行驶速度增加，并且当初始行驶时间过去时，冰传送部分以预先设定的目标速度被驱动。

    HIGH RESOLUTION TIME-OF-FLIGHT DISTANCE MEASUREMENT DEVICE BASED ON FEMTOSECOND LASER
    8.
    发明申请
    HIGH RESOLUTION TIME-OF-FLIGHT DISTANCE MEASUREMENT DEVICE BASED ON FEMTOSECOND LASER 有权
    基于FEMTOSECOND激光器的高分辨率飞行距离测量装置

    公开(公告)号：US20120086932A1

    公开(公告)日：2012-04-12

    申请号：US13253484

    申请日：2011-10-05

    申请人： Seung Woo KIM ,  Joo Hyung Lee ,  Young Jin Kim

    发明人： Seung Woo KIM ,  Joo Hyung Lee ,  Young Jin Kim

    IPC分类号： G01C3/08

    CPC分类号： G01S7/4865 ,  G01B11/026 ,  G01S7/4811 ,  G01S17/10

    摘要： Disclosed is a high resolution time-of-flight distance measurement device based on a femtosecond laser, including a femtosecond laser light source, a polarization beam splitter, a balanced optical cross-correlator in which second harmonic pulses are generated using reference light and measurement light, wherein the second harmonic pulse that was primarily generated is incident on a first photodetector and the second harmonic pulse that was secondarily generated is incident on a second photodetector, so that a difference in intensity of the second harmonic pulses is output, thus resolving the time interval of the pulse laser, a controller for controlling the repetition rate of the femtosecond laser, and a converter for measuring the repetition rate of the femtosecond laser controlled so that the pulses uniformly overlap by means of the controller, using a frequency counter traceable to a time/frequency standard, so that a measured value is converted into distance information.

    摘要翻译： 公开了一种基于飞秒激光器的高分辨率飞行时间距离测量装置，包括飞秒激光光源，偏振分束器，平衡光交叉相关器，其中使用参考光和测量光产生二次谐波脉冲 其中主要产生的二次谐波脉冲入射到第一光电检测器上，并且二次产生的二次谐波脉冲入射到第二光电检测器上，从而输出二次谐波脉冲的强度差，从而解决时间 脉冲激光器的间隔，用于控制飞秒激光器的重复率的控制器，以及用于测量飞秒激光器的重复率的转换器，其被控制，使得脉冲通过控制器均匀地重叠，使用可追溯到 时间/频率标准，使得测量值被转换成距离信息。