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    HALL SENSOR HAVING OFFSET REMOVAL FUNCTION AND OFFSET REMOVING METHOD THEREOF
    1.
    发明申请
    HALL SENSOR HAVING OFFSET REMOVAL FUNCTION AND OFFSET REMOVING METHOD THEREOF 审中-公开
    具有偏移功能的偏移传感器及其移除方法

    公开(公告)号：US20120256622A1

    公开(公告)日：2012-10-11

    申请号：US13188247

    申请日：2011-07-21

    申请人： Sung Tae KIM ,  Sang Gyu Park ,  Kyung Uk Kim ,  Dong Ok Han ,  Seung Chul Pyo ,  Soo Woong Lee

    发明人： Sung Tae KIM ,  Sang Gyu Park ,  Kyung Uk Kim ,  Dong Ok Han ,  Seung Chul Pyo ,  Soo Woong Lee

    IPC分类号： G01R33/07

    CPC分类号： G01R33/07 ,  G01R33/0029

    摘要： There are provided a hall sensor having an offset removal function removing an offset included in a hall voltage, and an offset removing method thereof. The hall sensor includes: a converting unit converting first and second detection voltages detected for each of a plurality of preset detection directions by a hall device detecting a magnetic field as a voltage according to the plurality of preset detection directions into a pulse having a level difference therebetween as a width; a sign determining unit comparing the first and second detection voltages with each other and determining whether the pulse has a positive sign or a negative sign according to the comparison result; a counter counting the width of the pulse from the converting unit with a preset reference time unit; and an operating unit removing an offset voltage included in the first and second detection voltages by performing a minus operation with the numbers counted by the counter according to the sign determined by the sign determining unit.

    摘要翻译： 提供了具有去除包括在霍尔电压中的偏移的偏移消除功能的霍尔传感器及其偏移消除方法。 霍尔传感器包括：转换单元，通过检测作为根据多个预设检测方向的电压的磁场的霍尔器件将针对多个预设检测方向中的每一个检测的第一和第二检测电压转换成具有电平差的脉冲 之间的宽度; 符号确定单元，将第一和第二检测电压彼此进行比较，并根据比较结果确定脉冲是否具有正号或负号; 一个计数器，用一个预设的基准时间单位来计算来自转换单元的脉冲宽度; 以及操作单元，通过根据由所述符号确定单元确定的符号由所述计数器计数的数字执行减号操作来去除包括在所述第一和第二检测电压中的偏移电压。

    Schmitt trigger circuit operated based on pulse width
    2.
    发明授权
    Schmitt trigger circuit operated based on pulse width 有权
    施密特触发电路基于脉冲宽度工作

    公开(公告)号：US08324950B2

    公开(公告)日：2012-12-04

    申请号：US13034363

    申请日：2011-02-24

    申请人： Sung Tae Kim ,  Sang Gyu Park ,  Kyung Uk Kim ,  Dong Ok Han ,  Seung Chul Pyo ,  Soo Woong Lee

    发明人： Sung Tae Kim ,  Sang Gyu Park ,  Kyung Uk Kim ,  Dong Ok Han ,  Seung Chul Pyo ,  Soo Woong Lee

    IPC分类号： G01R29/02 ,  H03K3/356

    CPC分类号： H03K3/3565

    摘要： There are provided a Schmitt trigger circuit that has hysteresis characteristics in which a release point and an operating point are determined based on a width of an inputted pulse. The Schmitt trigger circuit may include a signal/pulse conversion unit that receives an analog signal to generate an input pulse having a width corresponding to a magnitude of the analog signal, a pulse width determination unit that compares the width of the input pulse generated in the signal/pulse conversion unit with a predetermined first threshold width and a second threshold width greater than the first threshold width to output state information indicating the compared result, and an output determination unit that outputs a high signal, when the width of the input pulse is changed from a state of being smaller than the second threshold width to a state of being greater than the second threshold width based on the state information, and outputs a low signal when the width of the input pulse is changed from a state of being greater than the first threshold width to a state of being smaller than the first threshold width based on the state information.

    摘要翻译： 提供了具有滞后特性的施密特触发电路，其中基于输入脉冲的宽度来确定释放点和操作点。 施密特触发电路可以包括：信号/脉冲转换单元，其接收模拟信号以产生具有对应于模拟信号的幅度的宽度的输入脉冲;脉冲宽度确定单元，其将生成的输入脉冲的宽度进行比较 信号/脉冲转换单元，具有预定的第一阈值宽度和大于第一阈值宽度的第二阈值宽度，以输出指示比较结果的状态信息;以及输出确定单元，当输入脉冲的宽度为 根据状态信息从小于第二阈值宽度的状态变为大于第二阈值宽度的状态，并且当输入脉冲的宽度从大于 基于状态信息将第一阈值宽度设置为小于第一阈值宽度的状态。

    MULTIPLE FREQUENCY BAND HYBRID RECEIVER
    5.
    发明申请
    MULTIPLE FREQUENCY BAND HYBRID RECEIVER 有权
    多频带混合接收机

    公开(公告)号：US20100304703A1

    公开(公告)日：2010-12-02

    申请号：US12629609

    申请日：2009-12-02

    申请人： Dong Ok Han ,  Jeong Hoon Kim

    发明人： Dong Ok Han ,  Jeong Hoon Kim

    IPC分类号： H04B1/26

    CPC分类号： H04B1/28 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D7/165

    摘要： A multiple frequency band hybrid receiver includes a plurality of input terminals to which different frequency band signals are respectively inputted; a plurality of mixers connected to the plurality of input terminals sequentially, receiving the different frequency band signals respectively, and down-converting frequencies of the received frequency band signals to predetermined frequencies; an output terminal outputting baseband signals. Each mixer receives a signal from an input terminal connected thereto or another mixer. One of the plurality of mixers receives the lowest frequency band signal, converts a frequency of the received signal to a baseband frequency, and provides a signal having the baseband frequency to the output terminal. The other mixers each down-convert a frequency of a received signal to a frequency band of a signal which is inputted into another mixer.

    摘要翻译： 多频带混合接收机包括分别输入不同频带信号的多个输入端子; 顺序地连接到多个输入端的多个混频器，分别接收不同的频带信号，并将接收的频带信号的频率降频到预定的频率; 输出端子输出基带信号。 每个混合器从连接到其的输入端或另一个混频器接收信号。 多个混频器中的一个接收最低频带信号，将接收信号的频率转换为基带频率，并向输出端提供具有基带频率的信号。 其他混频器各自将接收到的信号的频率下变频为输入到另一混频器的信号的频带。

    Multiple frequency band hybrid receiver
    6.
    发明授权
    Multiple frequency band hybrid receiver 有权
    多频带混合接收机

    公开(公告)号：US08150359B2

    公开(公告)日：2012-04-03

    申请号：US12629609

    申请日：2009-12-02

    申请人： Dong Ok Han ,  Jeong Hoon Kim

    发明人： Dong Ok Han ,  Jeong Hoon Kim

    IPC分类号： H04B1/26

    CPC分类号： H04B1/28 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D7/165

    摘要： A multiple frequency band hybrid receiver includes a plurality of input terminals to which different frequency band signals are respectively inputted; a plurality of mixers connected to the plurality of input terminals sequentially, receiving the different frequency band signals respectively, and down-converting frequencies of the received frequency band signals to predetermined frequencies; an output terminal outputting baseband signals. Each mixer receives a signal from an input terminal connected thereto or another mixer. One of the plurality of mixers receives the lowest frequency band signal, converts a frequency of the received signal to a baseband frequency, and provides a signal having the baseband frequency to the output terminal. The other mixers each down-convert a frequency of a received signal to a frequency band of a signal which is inputted into another mixer.

    摘要翻译： 多频带混合接收机包括分别输入不同频带信号的多个输入端子; 顺序地连接到多个输入端的多个混频器，分别接收不同的频带信号，并将接收的频带信号的频率降频到预定的频率; 输出端子输出基带信号。 每个混合器从连接到其的输入端或另一个混频器接收信号。 多个混频器中的一个接收最低频带信号，将接收信号的频率转换为基带频率，并向输出端提供具有基带频率的信号。 其他混频器各自将接收到的信号的频率下变频为输入到另一混频器的信号的频带。

    Reference current generating circuit using on-chip constant resistor
    7.
    发明授权
    Reference current generating circuit using on-chip constant resistor 有权
    基准电流发生电路采用片上恒定电阻

    公开(公告)号：US07821324B2

    公开(公告)日：2010-10-26

    申请号：US12325097

    申请日：2008-11-28

    申请人： Dong Ok Han

    发明人： Dong Ok Han

    IPC分类号： G05F1/10

    CPC分类号： G05F3/245

    摘要： Provided is a reference current generating circuit capable of maintaining a constant output level regardless of a temperature variation by the use of a reference resistor having a constant resistance regardless of the temperature variation. The reference current generating circuit includes a reference voltage circuit supplying a reference voltage having a constant level regardless of a temperature variation, and a reference resistor circuit comprising a resistor having a positive temperature coefficient and a resistor having a negative temperature coefficient that are connected in series, the reference resistor circuit having a constant total resistance regardless of the temperature variation. Herein, a reference current having a constant level regardless of the temperature variation is generated by the reference voltage and the resistance of the reference resistor circuit.

    摘要翻译： 提供一种参考电流产生电路，无论温度变化如何，通过使用具有恒定电阻的参考电阻器，可以保持恒定的输出电平，而不管温度变化。 参考电流产生电路包括一个参考电压电路，它提供与温度变化无关的具有恒定电平的参考电压，以及一个参考电阻电路，包括一个具有正温度系数的电阻和一个串联连接的负温度系数的电阻 ，参考电阻电路具有恒定的总电阻，而与温度变化无关。 这里，通过参考电压和参考电阻电路的电阻产生与温度变化无关的具有恒定电平的参考电流。

    LOW-POWER WIRELESS COMMUNICATION APPARATUS AND METHOD
    8.
    发明申请
    LOW-POWER WIRELESS COMMUNICATION APPARATUS AND METHOD 审中-公开
    低功率无线通信设备和方法

    公开(公告)号：US20070205872A1

    公开(公告)日：2007-09-06

    申请号：US11566608

    申请日：2006-12-04

    申请人： Jeong Hoon Kim ,  Tah Joon Park ,  Ji Hoon Kim ,  Eung Jun Kim ,  Joong Jin Kim ,  Dong Ok Han

    发明人： Jeong Hoon Kim ,  Tah Joon Park ,  Ji Hoon Kim ,  Eung Jun Kim ,  Joong Jin Kim ,  Dong Ok Han

    IPC分类号： H04Q5/22

    CPC分类号： H04W52/0229 ,  Y02D70/00

    摘要： Provided is a low-power wireless communication apparatus and method. In the apparatus, a low-noise amplifier amplifies an RF signal in an on state, the low-noise amplifier be turned on/off according to a predetermined control signal. A wake-up signal detector detects a wake-up signal from the amplified RF signal. A controller provides the predetermined control signal such that the low-noise amplifier and the wake-up signal detector operate at a predetermined on-off duty ratio in a sleep mode corresponding to an Rx waiting state, and switching to an Rx mode to maintain the on state of the low-noise amplifier when the wake-up signal is detected.

    摘要翻译： 提供了一种低功率无线通信装置和方法。 在该装置中，低噪声放大器在接通状态下放大RF信号，根据预定的控制信号将低噪声放大器导通/截止。 唤醒信号检测器从放大的RF信号检测唤醒信号。 控制器提供预定的控制信号，使得低噪声放大器和唤醒信号检测器在对应于Rx等待状态的休眠模式中以预定的开 - 关占空比工作，并切换到Rx模式以维持 检测到唤醒信号时的低噪声放大器的导通状态。