公开(公告)号：US6057736A

公开(公告)日：2000-05-02

申请号：US135576

申请日：1998-08-18

申请人： Min Gun Kim ,  Chang Seok Lee ,  Jae Jin Lee ,  Kwang Eui Pyun

发明人： Min Gun Kim ,  Chang Seok Lee ,  Jae Jin Lee ,  Kwang Eui Pyun

IPC分类号： H03G1/00 ,  H03F1/34 ,  H03G3/30

CPC分类号： H03F1/342 ,  H03G1/007 ,  H03F2200/151

摘要： The present invention relates to a gain controlled amplifier, and more particularly, to a gain controlled amplifier using active feedback and variable resistance. It is an object of the present invention to provide a gain controlled amplifier minimizing the gain and the degradation of power characteristics generated when adjusting gain in a variable gain amplifier which receives signals having different power levels, amplifies them in accordance with each power level and outputs output signals in a constant power level. In order to achieve the above object, a gain controlled amplifier in accordance with the present invention comprises an amplifier and an active feedback means for negative feedbacking the output of the amplifier to the input of the amplifier, and further has a feedback amount controller inputting the controlled feedback signal to the amplifier by controlling the feedback amount of said active feedback means.

摘要翻译： 增益控制放大器本发明涉及一种增益控制放大器，更具体地说，涉及一种使用有源反馈和可变电阻的增益控制放大器。 本发明的一个目的是提供一种增益控制放大器，其最大程度地减小在接收具有不同功率电平的信号的可变增益放大器中调节增益时产生的功率特性的增益和劣化，根据每个功率电平放大它们 输出信号处于恒定功率电平。 为了实现上述目的，根据本发明的增益控制放大器包括放大器和用于将放大器的输出负反馈到放大器的输入的有源反馈装置，并且还具有反馈量控制器，其输入 通过控制所述主动反馈装置的反馈量来控制反馈信号到放大器。

公开(公告)号：US5862144A

公开(公告)日：1999-01-19

申请号：US956913

申请日：1997-10-23

申请人： Chang Seok Lee ,  Ingab Hwang ,  Min Gun Kim ,  Jae Jin Lee ,  Kwang Eui Pyun

发明人： Chang Seok Lee ,  Ingab Hwang ,  Min Gun Kim ,  Jae Jin Lee ,  Kwang Eui Pyun

IPC分类号： G01R23/00 ,  G01R27/32 ,  G06F11/00

CPC分类号： G01R27/32

摘要： A method for correcting a high frequency measurement error which can exactly correct the high frequency measurement error even with the use of a standard devices of which characteristic have not been verified by calculating the characteristic impedance of the correction device from the characteristics of an auxiliary measuring device calculated by using a general error correction method, and calculating again the once calculated characteristics of the auxiliary measuring device. The method in accordance with the present invention comprises the steps of modelling an auxiliary measuring device used for measuring a high frequency charateristics of the device under test by two transmission lines connected in series between two terminals and a parasitic component connected in parallel between a junction of the two transmission lines and a ground; and moving a reference measurement point to the junction of the two transmission lines by using a phase angle of each transmission line and calculating a reference impedance at the terminal of the auxiliary measuring device to which an object to be measured is connected by using the difference of the resultant reflection coefficients of each port.

摘要翻译： 一种用于校正高频测量误差的方法，即使使用通过从辅助测量装置的特性计算校正装置的特性阻抗尚未验证其特性的标准装置，也可以精确地校正高频测量误差 通过使用通用误差校正方法计算，并再次计算辅助测量装置的一次计算的特性。 根据本发明的方法包括以下步骤：对用于测量被测器件的高频特性的两个传输线串联连接在两个端子之间的辅助测量装置和在两个端子之间并联连接的寄生元件进行建模， 两条传输线和一条地面; 并且通过使用每个传输线的相位角将参考测量点移动到两个传输线的结点，并且通过使用所述差异来计算被测量对象的辅助测量装置的端子处的基准阻抗 每个端口的反射系数。

公开(公告)号：US6100753A

公开(公告)日：2000-08-08

申请号：US137886

申请日：1998-08-21

申请人： Chang Seok Lee ,  Min Gun Kim ,  Jae Jin Lee ,  Kwang Eui Pyun

发明人： Chang Seok Lee ,  Min Gun Kim ,  Jae Jin Lee ,  Kwang Eui Pyun

IPC分类号： H01L29/70 ,  G05F3/24 ,  G05F1/10

CPC分类号： G05F3/247 ,  G05F3/245

摘要： The present invention relates to a bias stabilization circuit, specifically to a bias stabilization circuit for minimizing the current variations of amplification transistors caused by variations of device parameters which occur during the manufacturing of high-frequency integrated circuits using field-effect transistors, and caused by variations of supply voltage and temperature. In the present invention, the above problem is solved by configuring a level shifter circuit between the drain node and the gate node of the reference voltage generation transistor. Further, by using a constant current source utilizing a depletion transistor and series feedback resistors as a reference current, this circuit becomes stable against the variations of the device parameters as well as the variations of the temperature and supply voltage.

摘要翻译： 本发明涉及一种偏置稳定电路，特别涉及一种偏置稳定电路，用于使由场效应晶体管制造高频集成电路期间发生的器件参数变化引起的放大晶体管的电流变化最小化，并由 电源电压和温度变化。 在本发明中，通过在基准电压产生晶体管的漏极节点和栅极节点之间配置电平移位电路来解决上述问题。 此外，通过使用利用耗尽晶体管和串联反馈电阻器的恒流源作为参考电流，该电路针对器件参数的变化以及温度和电源电压的变化而变得稳定。

公开(公告)号：US5939954A

公开(公告)日：1999-08-17

申请号：US955378

申请日：1997-10-21

申请人： Min Gun Kim ,  Choong Hwan Kim ,  Chang Seok Lee ,  Jae Jin Lee ,  Kwang Eui Pyun

发明人： Min Gun Kim ,  Choong Hwan Kim ,  Chang Seok Lee ,  Jae Jin Lee ,  Kwang Eui Pyun

IPC分类号： H01L23/28 ,  H03H7/38 ,  H01L23/64 ,  H05K7/02

CPC分类号： H03H7/38 ,  H01L2224/45144 ,  H01L2224/48091

摘要： The present invention relates to an equivalent circuit of a package ground terminal paddle which is used to mount a microwave integrated circuit, and more particularly, to an approximate equivalent circuit of the package ground terminal paddle by which the expressions of parasitic components can be easily expanded according to the number of gold wires that are down-bonded to the paddle, by introducing an equivalent circuit structure which takes the impedance component output from each terminal as one common impedance component and grounds the common impedance.

摘要翻译： 本发明涉及一种用于安装微波集成电路的封装接地端子板的等效电路，更具体地说涉及封装接地端子板的近似等效电路，通过该电路可以容易地扩展寄生元件的表达 根据下焊接到焊盘的金线的数量，通过引入等效电路结构，其将来自每个端子的阻抗分量输出作为一个公共阻抗分量并将公共阻抗接地。

公开(公告)号：US6064265A

公开(公告)日：2000-05-16

申请号：US146529

申请日：1998-09-03

申请人： Kwang Jun Yun ,  Min Kun Kim ,  Chang Seok Lee ,  Jae Jin Lee ,  Kwang Eui Pyun

发明人： Kwang Jun Yun ,  Min Kun Kim ,  Chang Seok Lee ,  Jae Jin Lee ,  Kwang Eui Pyun

IPC分类号： H03F3/193 ,  H03G1/00 ,  H03G3/30 ,  H03G3/10

CPC分类号： H03F3/193 ,  H03G1/007 ,  H03G3/3042 ,  H03F2200/294 ,  H03F2200/318

摘要： The present invention relates to a gain control circuit for a low-noise amplifier. A gain control circuit of a 2-stage low-noise amplifier comprising an input stage noise matching circuit, an intermediate impedance matching circuit, a gain control circuit, and an output stage impedance matching circuit, said gain control circuit including: a feedback circuit connected to a transistor of second stage of the 2-stage low-noise amplifier, said feedback circuit detecting the amplified signal through the first stage and the second stage, and feeding the signal back through a switch circuit; and an attenuation circuit for compensating the harmonics of the input signal.

摘要翻译： 本发明涉及一种用于低噪声放大器的增益控制电路。 一种包括输入级噪声匹配电路，中间阻抗匹配电路，增益控制电路和输出级阻抗匹配电路的2级低噪声放大器的增益控制电路，所述增益控制电路包括：反馈电路， 到2级低噪声放大器的第二级的晶体管，所述反馈电路通过第一级和第二级检测放大的信号，并通过开关电路将信号反馈; 以及用于补偿输入信号的谐波的衰减电路。

公开(公告)号：US5989961A

公开(公告)日：1999-11-23

申请号：US116904

申请日：1998-07-17

申请人： Jeon Wook Yang ,  Jae Kyoung Mun ,  Eung Gie Oh ,  Jae Jin Lee ,  Kwang Eui Pyun

发明人： Jeon Wook Yang ,  Jae Kyoung Mun ,  Eung Gie Oh ,  Jae Jin Lee ,  Kwang Eui Pyun

IPC分类号： H01L29/78 ,  H01L21/338 ,  H01L29/812 ,  H01L21/336

CPC分类号： H01L29/66856 ,  H01L29/812

摘要： Disclosed is a method for manufacturing a vertical channel transistor comprising the steps of: selectively implanting a dopant of high concentration into a semiconductor substrate to form a source region; firstly etching the semiconductor substrate using an insulator and a first photoresist pattern as a mask; secondly etching the substrate using a second photoresist pattern having a shape corresponding to said source region as a mask; implanting a dopant of low concentration into the exposed substrate using said second photoresist pattern as a mask to form a vertical channel layer; implanting a dopant of high concentration into the exposed substrate using same mask to form a drain region; activating said dopants, and forming an ohmic contact layer on said drain region; thirdly etching using a third photoresist pattern for exposing the firstly etched portion of the substrate as a mask; depositing a gate metal on the substrate exposed by the thirdly etching; and wiring a metal, respectively. This invention can be easily manufactured a vertical channel transistor having a low parasitic resistance and an extremely small gate length without sophicated complex processes.

摘要翻译： 公开了用于制造垂直沟道晶体管的方法，包括以下步骤：选择性地将高浓度的掺杂剂注入到半导体衬底中以形成源极区; 首先使用绝缘体和第一光致抗蚀剂图案作为掩模蚀刻半导体衬底; 其次使用具有对应于所述源区域的形状的第二光致抗蚀剂图案作为掩模蚀刻所述基板; 使用所述第二光致抗蚀剂图案作为掩模将低浓度的掺杂剂注入暴露的衬底中以形成垂直沟道层; 使用相同的掩模将高浓度的掺杂剂注入暴露的衬底中以形成漏区; 激活所述掺杂剂，并在所述漏极区上形成欧姆接触层; 第三次使用第三光致抗蚀剂图案进行蚀刻，以将基板的第一蚀刻部分暴露为掩模; 在通过第三次蚀刻暴露的衬底上沉积栅极金属; 并分别接线金属。 本发明可以容易地制造具有低寄生电阻和非常小的栅极长度的垂直沟道晶体管，而无需复杂的复杂工艺。

公开(公告)号：US20100234741A1

公开(公告)日：2010-09-16

申请号：US12520246

申请日：2008-08-29

申请人： Jae Jin Lee ,  Chung Hwan Kim ,  Min Gun Kim

发明人： Jae Jin Lee ,  Chung Hwan Kim ,  Min Gun Kim

IPC分类号： A61B5/0205 ,  A61B5/024

CPC分类号： G08B21/06 ,  A61B5/0205 ,  A61B5/0402 ,  A61B5/0507 ,  A61B5/1102 ,  A61B5/7455 ,  A61B2503/22

摘要： The present invention relates to a drowsiness detection method. A heartbeat signal and a breathing signal are detected by exploiting together a scheme and an optical system scheme. The detected signals are applied to respective amplification units, noise signals are eliminated from the detected signals, and noise-free signals are amplified. The amplified signals are applied to a central processing unit, signal processing is processed on the signals, and processed signals are combined. The combined signal is counted, and a warning sound, voice message or vibration is output in a case where a value, obtained by subtracting a counted output value monitored one minute before a current time, from a counted output value monitored two minutes before the current time, falls within a detection range and where, with a passage of time, the value falling within the detection range is successively detected from two to ten times.

摘要翻译： 本发明涉及一种嗜睡检测方法。 通过一起利用方案和光学系统方案来检测心跳信号和呼吸信号。 检测到的信号被施加到各个放大单元，从检测到的信号中消除噪声信号，并且无噪声信号被放大。 将放大的信号施加到中央处理单元，对信号进行信号处理，并且处理的信号被组合。 对组合的信号进行计数，并且在通过从当前时间之前1分钟监视的计数输出值减去得到的值从在当前的两分钟前监视的计数输出值得到的值的情况下输出警告声音，语音消息或振动 时间落在检测范围内，并且随着时间的流逝，落在检测范围内的值被连续地检测到两到十次。

公开(公告)号：US06539216B1

公开(公告)日：2003-03-25

申请号：US09475053

申请日：1999-12-30

申请人： Eung Gie Oh ,  Min Gun Kim ,  Sung Weon Kang ,  Jae Jin Lee

发明人： Eung Gie Oh ,  Min Gun Kim ,  Sung Weon Kang ,  Jae Jin Lee

IPC分类号： H04B126

CPC分类号： H04B1/18

摘要： A microwave frequency converting receiver of an RF unit should be generally used in wireless/mobile communications systems such as cellular, PCS, WLL and IMT2000 systems and also have low power consumption, low-noise characteristic, high gain and small size. In order to produce the above frequency converting receiver, a multi-band and multi-mode frequency converting receiver for use in a wireless mobile communications system comprises a wideband low-noise amplifier for amplifying a radio frequency input signal, a frequency mixer for generating an intermediate frequency signal having a relatively high linearity by mixing a local oscillator frequency signal and the amplified radio frequency signal outputted from the wideband low noise amplifier, an intermediate frequency amplifier for producing a final intermediate frequency signal by amplifying the intermediate frequency signal derived from the frequency mixer and an input matching circuit for receiving a microwave signal within a frequency band of the wireless mobile communications system, impedance-matching the received microwave signal to the radio frequency input signal of the wideband low-noise amplifier and determining an operating frequency band of the frequency converting receiver.

摘要翻译： RF单元的微波频率转换接收机通常应用在诸如蜂窝，PCS，WLL和IMT2000系统的无线/移动通信系统中，并且还具有低功耗，低噪声特性，高增益和小尺寸。 为了生产上述频率转换接收机，用于无线移动通信系统的多频和多模式频率转换接收机包括用于放大射频输入信号的宽带低噪声放大器，用于产生 通过混合本地振荡器频率信号和从宽带低噪声放大器输出的放大射频信号具有较高线性度的中频信号，用于通过放大从频率导出的中频信号来产生最终中频信号的中频放大器 混频器和用于在无线移动通信系统的频带内接收微波信号的输入匹配电路，将接收到的微波信号与宽带低噪声放大器的射频输入信号进行阻抗匹配，并确定该宽带低噪声放大器的工作频带 变频接收机。

公开(公告)号：US20110175769A1

公开(公告)日：2011-07-21

申请号：US12910314

申请日：2010-10-22

申请人： Jae Jin Lee ,  Chung Hwan Kim ,  Min Gun Kim

发明人： Jae Jin Lee ,  Chung Hwan Kim ,  Min Gun Kim

IPC分类号： G01S13/00

CPC分类号： G01S7/034 ,  H01Q1/48 ,  H01Q9/30 ,  H01Q13/00

摘要： Microwave sensor includes an oscillator for generating microwave signals, a power divider for dividing the microwave signals, an antenna for transmitting the divided microwave signals to an outside of the microwave sensor and receiving microwave signals reflected from an object, and a mixer for detecting differences between the microwave signals received through the antenna and the signals input from the power divider and outputting Intermediate Frequency (IF) signals. The antenna includes a ground plate, an antenna pin located at a center of the ground plate, and a metallic wall formed along a circumference of the ground plate. Accordingly, the microwave sensor is advantageous in that it has uniform gain characteristics regardless of an azimuth angle by using a single antenna, functioning as both transmitting and receiving antennas, and a circuit for operating the antenna.

摘要翻译： 微波传感器包括用于产生微波信号的振荡器，用于分割微波信号的功率分配器，用于将分离的微波信号传输到微波传感器的外部并接收从对象反射的微波信号的天线，以及用于检测 通过天线接收的微波信号和从功率分配器输入的信号并输出​​中频（IF）信号。 天线包括接地板，位于接地板中心的天线针脚和沿着接地板的圆周形成的金属壁。 因此，微波传感器的优点在于，通过使用用作发射和接收天线两者的单个天线以及用于操作天线的电路，其具有均匀的增益特性，而不管方位角如何。

公开(公告)号：US07887489B2

公开(公告)日：2011-02-15

申请号：US12520246

申请日：2008-08-29

申请人： Jae Jin Lee ,  Chung Hwan Kim ,  Min Gun Kim

发明人： Jae Jin Lee ,  Chung Hwan Kim ,  Min Gun Kim

IPC分类号： A61B5/02

CPC分类号： G08B21/06 ,  A61B5/0205 ,  A61B5/0402 ,  A61B5/0507 ,  A61B5/1102 ,  A61B5/7455 ,  A61B2503/22

摘要： The present invention relates to a drowsiness detection method. A heartbeat signal and a breathing signal are detected by exploiting together a scheme and an optical system scheme. The detected signals are applied to respective amplification units, noise signals are eliminated from the detected signals, and noise-free signals are amplified. The amplified signals are applied to a central processing unit, signal processing is processed on the signals, and processed signals are combined. The combined signal is counted, and a warning sound, voice message or vibration is output in a case where a value, obtained by subtracting a counted output value monitored one minute before a current time, from a counted output value monitored two minutes before the current time, falls within a detection range and where, with a passage of time, the value falling within the detection range is successively detected from two to ten times.

摘要翻译： 本发明涉及一种嗜睡检测方法。 通过一起利用方案和光学系统方案来检测心跳信号和呼吸信号。 检测到的信号被施加到各个放大单元，从检测到的信号中消除噪声信号，并且无噪声信号被放大。 将放大的信号施加到中央处理单元，对信号进行信号处理，并且处理的信号被组合。 对组合的信号进行计数，并且在通过从当前时间之前1分钟监视的计数输出值减去得到的值从在当前的两分钟前监视的计数输出值得到的值的情况下输出警告声音，语音消息或振动 时间落在检测范围内，并且随着时间的流逝，落在检测范围内的值被连续地检测到两到十次。