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    SPIN-TRANSFER TORQUE TYPE INJECTION LOCKING OSCILLATOR AND DESIGN METHOD THEREOF
    2.
    发明申请
    SPIN-TRANSFER TORQUE TYPE INJECTION LOCKING OSCILLATOR AND DESIGN METHOD THEREOF 有权
    转子扭矩型注射锁止振荡器及其设计方法

    公开(公告)号：US20150303873A1

    公开(公告)日：2015-10-22

    申请号：US14440983

    申请日：2013-10-16

    申请人： KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

    发明人： ChulSoon Park ,  SeongJun Cho

    IPC分类号： H03B15/00 ,  H01L43/12 ,  G06F17/50

    CPC分类号： H03B15/006 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/098 ,  G01R33/1284 ,  G06F17/5068 ,  H01F10/329 ,  H01L43/12 ,  H03B27/00 ,  H03L7/23 ,  H03L7/24

    摘要： The present invention provides a spin-transfer torque type injection locking oscillator which improves both power and noise performance by using pair of spin-transfer torque devices. One is optimized for high power and the other is optimized for low noise characteristics. The output signal of the low noise spin-transfer torque device is injected into the high output power spin-transfer torque for phase locking. The present invention has several advantages such as the miniaturization, the high quality and low cost, and the mass production of integrated chips by the nanoscale.

    摘要翻译： 本发明提供了一种通过使用一对自旋转移转矩装置来提高功率和噪声性能的自旋转移转矩型注入锁定振荡器。 一个针对高功率进行了优化，另一个针对低噪声特性进行了优化。 低噪声自旋转移转矩装置的输出信号被注入到用于锁相的高输出功率的自旋转移转矩中。 本发明具有微型化，高品质，低成本，纳米级集成芯片的大量生产等优点。

    Wideband variable gain amplifier with low phase variation
    3.
    发明授权
    Wideband variable gain amplifier with low phase variation 有权

    公开(公告)号：US10700656B2

    公开(公告)日：2020-06-30

    申请号：US16215864

    申请日：2018-12-11

    申请人： Korea Advanced Institute of Science and Technology

    发明人： ChulSoon Park ,  SeungHun Kim

    IPC分类号： H03F1/22 ,  H03G3/30 ,  H03F1/02 ,  H03F3/04 ,  H03F1/56

    摘要： A wideband variable gain amplifier (VGA) having a low phase change is disclosed. The first VGA amplifies an input signal by a current steering manner so that an amplification gain is variable. The larger a variable gain amount of the first output signal amplified by the first VGA is, the more a relative phase change amount gradually increases in either positive direction or negative direction. The second VGA further amplifies the first amplified output signal in the current steering manner so as to vary the amplification gain. As a variable gain amount of a second output signal amplified by the second VGA becomes larger, a relative phase change amount gradually increases in a direction opposite to the phase change direction of the first VGA. This opposing phase changes of the first and second VGAs are canceled against each other to provide a variable amplification gain over the wideband frequency range with a low phase change.

    Spin modulator and spin-transfer torque oscillators having phase tuning means and modulation method thereof
    4.
    发明授权
    Spin modulator and spin-transfer torque oscillators having phase tuning means and modulation method thereof 有权
    具有相位调整装置及其调制方法的自旋调制器和自旋转移扭矩振荡器

    公开(公告)号：US09543971B2

    公开(公告)日：2017-01-10

    申请号：US14647022

    申请日：2013-10-15

    申请人： KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

    发明人： ChulSoon Park ,  Inn Yeal Oh

    IPC分类号： H03L7/24 ,  H03B15/00 ,  H03C3/00 ,  H03L1/00

    CPC分类号： H03L7/24 ,  H03B15/006 ,  H03C3/00 ,  H03L1/00

    摘要： A spin modulator with phase tuning means which comprises, a spin array which consists of m×n matrix spin-transfer torque oscillators, a selection control means which selectively operates the spin-transfer torque oscillators according to an operation condition of the spin array, and a phase tuning array which includes m×n matrix phase tuning means, wherein the m×n matrix phase tuning means tune a phase synchronization operation of the spin-transfer torque oscillators according to the operation condition.

    摘要翻译： 一种具有相位调谐装置的自旋调制装置，包括由m×n矩阵旋转传递转矩振荡器组成的自旋阵列，根据旋转阵列的操作条件选择性地操作旋转传递转矩振荡器的选择控制装置，以及 包括m×n矩阵相位调谐装置的相位调谐阵列，其中，所述m×n矩阵相位调谐装置根据所述操作条件调整所述自旋传递转矩振荡器的相位同步运算。

    WIDEBAND VARIABLE GAIN AMPLIFIER WITH LOW PHASE VARIATION
    6.
    发明申请
    WIDEBAND VARIABLE GAIN AMPLIFIER WITH LOW PHASE VARIATION 审中-公开

    公开(公告)号：US20200144978A1

    公开(公告)日：2020-05-07

    申请号：US16215864

    申请日：2018-12-11

    申请人： Korea Advanced Institute of Science and Technology

    发明人： ChulSoon Park ,  SeungHun Kim

    IPC分类号： H03G3/30 ,  H03F1/02 ,  H03F3/04 ,  H03F1/56

    摘要： A wideband variable gain amplifier (VGA) having a low phase change is disclosed. The first VGA amplifies an input signal by a current steering manner so that an amplification gain is variable. The larger a variable gain amount of the first output signal amplified by the first VGA is, the more a relative phase change amount gradually increases in either positive direction or negative direction. The second VGA further amplifies the first amplified output signal in the current steering manner so as to vary the amplification gain. As a variable gain amount of a second output signal amplified by the second VGA becomes larger, a relative phase change amount gradually increases in a direction opposite to the phase change direction of the first VGA. This opposing phase changes of the first and second VGAs are canceled against each other to provide a variable amplification gain over the wideband frequency range with a low phase change.

    Display apparatus of receiving millimeter wave or terahertz wave under non-line-of-sight conditions and displaying method thereof
    8.
    发明授权
    Display apparatus of receiving millimeter wave or terahertz wave under non-line-of-sight conditions and displaying method thereof 有权
    在非视距条件下接收毫米波或太赫兹波的显示装置及其显示方法

    公开(公告)号：US09237290B2

    公开(公告)日：2016-01-12

    申请号：US14081183

    申请日：2013-11-15

    申请人： KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

    发明人： InnYeal Oh ,  ChulSoon Park

    IPC分类号： H04B1/38 ,  H04N5/44 ,  H04N21/4363 ,  H04N21/41

    CPC分类号： H04N5/44 ,  H04N21/4122 ,  H04N21/43637

    摘要： Provided is a display apparatus for receiving millimeter waves or terahertz waves from a transmitter under a non-line-of-sight condition, the apparatus including: a plurality of diversity boards that are installed in a bezel of the display apparatus, receive millimeter waves or terahertz waves having different paths, convert the received waves into a plurality of baseband signals, and sense output powers of the plurality of baseband signals; a controller to output a control signal for selecting a diversity board of a maximum output power from the output powers sensed by the plurality of diversity boards; a selector to connect the diversity board of the maximum output power among the plurality of diversity boards to an image converter by the control signal; and the image converter to convert an output of the selector into image data for displaying.

    摘要翻译： 提供一种显示装置，用于在非视线状态下从发射机接收毫米波或太赫兹波，该装置包括：多个分集板，安装在显示装置的边框中，接收毫米波或 具有不同路径的太赫兹波将接收的波转换成多个基带信号，并感测多个基带信号的输出功率; 控制器，用于从由所述多个分集板所感测的输出功率输出用于选择最大输出功率的分集板的控制信号; 选择器，通过所述控制信号将所述多个分集板中的最大输出功率的分集板连接到图像转换器; 以及图像转换器，用于将选择器的输出转换成用于显示的图像数据。

    Efficiency improved envelope amplifier using dual switching amplifiers
    9.
    发明授权
    Efficiency improved envelope amplifier using dual switching amplifiers 有权
    使用双开关放大器的效率改进的包络放大器

    公开(公告)号：US08896375B2

    公开(公告)日：2014-11-25

    申请号：US13735395

    申请日：2013-01-07

    申请人： Korea Advanced Institute of Science and Technology

    发明人： ChulSoon Park ,  HyukSu Son ,  WooYoung Kim ,  JooYoung Jang ,  HaeJin Lee

    IPC分类号： H03G3/20 ,  H03F3/16 ,  G06F17/50 ,  H03F1/02

    CPC分类号： H03F3/16 ,  G06F17/5072 ,  H03F1/0227

    摘要： Provided is a hybrid envelope amplifier having improved efficiency, and more particularly, to an envelope amplifier using a dual switching amplifier and having improved efficiency in which power consumption is reduced by controlling a switching current of a switching region according to a magnitude of an envelope input signal, thereby improving efficiency compared to a conventional hybrid envelope amplifier. The envelope amplifier using a dual switching amplifier and having improved efficiency comprises a linear amplifier and a switching amplifier, wherein the switching amplifier includes two or more switching stages that are selectively operated according to a magnitude of an input signal.

    摘要翻译： 提供了一种具有改进的效率的混合包络放大器，更具体地，涉及使用双开关放大器的包络放大器，并且通过根据包络输入的幅度控制开关区域的开关电流，并且具有提高的功率消耗的效率 信号，从而提高了与常规混合包络放大器相比的效率。 使用双开关放大器并且具有改进的效率的包络放大器包括线性放大器和开关放大器，其中开关放大器包括根据输入信号的幅度选择性地操作的两个或更多个开关级。