公开(公告)号：US07879848B2

公开(公告)日：2011-02-01

申请号：US11910370

申请日：2006-03-30

Applicant: Chang-Seok Lee ,  Jong Sung Koh ,  Ki Dong Koo ,  Geun Tae Kim ,  Kyoung-Hee Kim ,  Sang Yong Hong ,  Sungsub Kim ,  Min-Jung Kim ,  Hyeon Joo Yim ,  Dongchul Lim ,  Hye Jin Kim ,  Hee Oon Han ,  Seong Cheol Bu ,  Oh Hwan Kwon ,  Sung Ho Kim ,  Gwong-Cheung Hur ,  Ji Young Kim ,  Zi-Ho Yeom ,  Dong-Jun Yeo

Inventor： Chang-Seok Lee ,  Jong Sung Koh ,  Ki Dong Koo ,  Geun Tae Kim ,  Kyoung-Hee Kim ,  Sang Yong Hong ,  Sungsub Kim ,  Min-Jung Kim ,  Hyeon Joo Yim ,  Dongchul Lim ,  Hye Jin Kim ,  Hee Oon Han ,  Seong Cheol Bu ,  Oh Hwan Kwon ,  Sung Ho Kim ,  Gwong-Cheung Hur ,  Ji Young Kim ,  Zi-Ho Yeom ,  Dong-Jun Yeo

IPC: C07D471/04 ,  C07D413/14 ,  A61K31/519 ,  A61K31/5355 ,  A61K31/4355 ,  A61P3/10 ,  A61K31/437 ,  A61K31/5025 ,  C07D487/04 ,  C07D217/14 ,  C07D498/04

CPC classification number: C07D487/04 ,  C07D401/06 ,  C07D413/06 ,  C07D471/04 ,  C07D498/04 ,  C07D513/04

Abstract: Novel compounds exhibiting good inhibitory activity versus Dipeptidyl Peptidase-IV(DPP-IV) include those of the following formula (1) or pharmaceutically acceptable salt thereof: wherein A is a substituted or unsubstituted 1,4,5,7-tetrahydro-pyrazolo[3,4-c]pyridine, 5,6 -dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, 4,5-dihydro-7H-isooxazolo[3,4-c]pyridine, 3,4 -dihydroisoquinoline, 5,8-dihydropyrido[3,4-d]pyrimidine, or 6,7 -dihydro[1,3]thiazolo[4,5,c]pyridine, and B is a substituted or unsubstituted piperidin-2-one, morpholin-3-one, oxazolidin-2-one, pyrrolidin-2-one, or 1,5-dihydro-pyrrol-2-one. Methods of preparing the novel inhibitory compounds of formula (1) and pharmaceutical compositions containing the same as an active agent are disclosed.

Abstract translation: 对二肽基肽酶-IV（DPP-IV）显示出良好抑制活性的新型化合物包括下式（1）或其药学上可接受的盐：其中A是取代或未取代的1,4,5,7-四氢 - 吡唑并[ 3,4-c]吡啶，5,6-二氢-8H- [1,2,4]三唑并[4,3-a]吡嗪，4,5-二氢-7H-异恶唑并[3,4-c]吡啶 ，3,4-二氢异喹啉，5,8-二氢吡啶并[3,4-d]嘧啶或6,7-二氢[1,3]噻唑并[4,5，c]吡啶，B是取代或未取代的哌啶 -2-酮，吗啉-3-酮，恶唑烷-2-酮，吡咯烷-2-酮或1,5-二氢 - 吡咯-2-酮。 公开了制备式（1）的新型抑制性化合物和含有它们作为活性剂的药物组合物的方法。

公开(公告)号：US20080188471A1

公开(公告)日：2008-08-07

申请号：US11910370

申请日：2006-03-30

Applicant: Chang-Seok Lee ,  Jong Sung Koh ,  Ki Dong Koo ,  Geun Tae Kim ,  Kyoung-Hee Kim ,  Sang Yong Hong ,  Sungsub Kim ,  Min-Jung Kim ,  Hyeon Joo Yim ,  Dongchul Lim ,  Hye Jin Kim ,  Hee Oon Han ,  Seong Cheol Bu ,  Oh Hwan Kwon ,  Sung Ho Kim ,  Gwong-Cheung Hur ,  Ji Young Kim ,  Zi-Ho Yeom ,  Dong-Jun Yeo

Inventor： Chang-Seok Lee ,  Jong Sung Koh ,  Ki Dong Koo ,  Geun Tae Kim ,  Kyoung-Hee Kim ,  Sang Yong Hong ,  Sungsub Kim ,  Min-Jung Kim ,  Hyeon Joo Yim ,  Dongchul Lim ,  Hye Jin Kim ,  Hee Oon Han ,  Seong Cheol Bu ,  Oh Hwan Kwon ,  Sung Ho Kim ,  Gwong-Cheung Hur ,  Ji Young Kim ,  Zi-Ho Yeom ,  Dong-Jun Yeo

IPC: A61K31/4985 ,  A61P3/04 ,  A61P3/10 ,  C07D471/04 ,  A61K31/5355 ,  C07D487/04 ,  C07D413/02 ,  A61K31/519

CPC classification number: C07D487/04 ,  C07D401/06 ,  C07D413/06 ,  C07D471/04 ,  C07D498/04 ,  C07D513/04

Abstract: The present invention relates to novel compounds exhibiting good inhibitory activity versus Dipeptidyl Peptidase-IV (DPP-IV), methods of preparing the same and pharmaceutical compositions containing the same as an active agent.

Abstract translation: 本发明涉及相对于二肽基肽酶-IV（DPP-IV）显示出良好抑制活性的新化合物，其制备方法和含有该活性剂的药物组合物。

公开(公告)号：US20080036496A1

公开(公告)日：2008-02-14

申请号：US11831348

申请日：2007-07-31

Applicant: Yu Sin KIM ,  Jeong Ho Moon ,  Moo II Jeong ,  Chang Seok Lee ,  Chang Soo Yang ,  Sang Gyu Park ,  Kwang Du Lee

Inventor： Yu Sin KIM ,  Jeong Ho Moon ,  Moo II Jeong ,  Chang Seok Lee ,  Chang Soo Yang ,  Sang Gyu Park ,  Kwang Du Lee

IPC: H03K19/0175 ,  G05F1/44 ,  H03K19/20

CPC classification number: H03K19/018514

Abstract: A current mode logic (CML)-CMOS converter comprises an input stage that is turned on/off by receiving an input voltage from the outside; a voltage control unit that outputs a constant voltage; a first switching unit that is connected to the input stage and the voltage control unit and is turned on/off by the constant voltage applied from the voltage control unit; and a second switching unit that is connected to the input stage and is turned on/off by a signal applied from the input stage.

Abstract translation: 电流模式逻辑（CML）-CMOS转换器包括通过从外部接收输入电压而被接通/断开的输入级; 输出恒定电压的电压控制单元; 第一开关单元，其连接到所述输入级和所述电压控制单元，并且通过从所述电压控制单元施加的恒定电压来接通/断开; 以及第二开关单元，其连接到所述输入级，并且通过从所述输入级施加的信号导通/截止。

公开(公告)号：US20070092023A1

公开(公告)日：2007-04-26

申请号：US11584329

申请日：2006-10-20

Applicant: Hyun-Il Kang ,  Chang-Seok Lee ,  Jae-Kon Lee ,  Young-Hwan Lee

Inventor： Hyun-Il Kang ,  Chang-Seok Lee ,  Jae-Kon Lee ,  Young-Hwan Lee

IPC: H04L27/10

CPC classification number: H04L27/364 ,  H03J2200/29 ,  H04B17/21 ,  H04L27/38

Abstract: A method is provided for self-calibrating the mismatch and the direct current (DC) offset occurring in a mobile transceiver. The transmitter of the mobile terminal is used as a signal generator and the receiver thereof is used as a response characteristic measurer. The baseband processor calibrates the mismatch and the DC offset for the receiving and transmitting sides using a test signal received from the transmitter. When multiple input subcarriers are used in a mixer present on a reception stage, self-calibration is performed using multiple received test signals obtained from one transmission test signal.

Abstract translation: 提供了一种用于自校准在移动收发器中出现的失配和直流（DC）偏移的方法。 移动终端的发射机用作信号发生器，其接收机用作响应特性测量器。 基带处理器使用从发送器接收的测试信号来校准接收和发送端的失配和直流偏移。 当在接收台上存在的混频器中使用多个输入副载波时，使用从一个发送测试信号获得的多个接收的测试信号进行自校准。

公开(公告)号：US07209526B2

公开(公告)日：2007-04-24

申请号：US10889900

申请日：2004-07-12

Applicant: Young-Wan Kim ,  Chang-Seok Lee ,  Yu-Shin Kim ,  Hee-Jin Yoo ,  Eun-Suk Kwak

Inventor： Young-Wan Kim ,  Chang-Seok Lee ,  Yu-Shin Kim ,  Hee-Jin Yoo ,  Eun-Suk Kwak

IPC: H04L27/00 ,  H04L27/08

CPC classification number: H03D3/009

Abstract: An apparatus and a method for detecting imbalances between an I-channel signal and a Q-channel signal in order to suppress a spurious signal in a direct conversion digital quadrature transmission system is disclosed. The apparatus includes: a compensation signal generating unit for generating a first and a second compensation signals based on a digital I-channel and a digital Q-channel signals; a baseband signal generating unit for generating an I-channel and a Q-channel baseband signals by converting a radio frequency signal into a low frequency signal; and a detecting unit for detecting a phase imbalance and an amplitude imbalance between the digital I-channel and the digital Q-channel signals by using a correlation between the first and the second compensation signals with the I-channel and the Q-channel baseband signals.

Abstract translation: 公开了一种用于检测I信道信号和Q信道信号之间的不平衡以便抑制直接转换数字正交传输系统中的寄生信号的装置和方法。 该装置包括：补偿信号产生单元，用于基于数字I信道和数字Q信道信号产生第一和第二补偿信号; 基带信号产生单元，用于通过将射频信号转换成低频信号来产生I信道和Q信道基带信号; 以及检测单元，用于通过使用第一和第二补偿信号与I信道和Q信道基带信号之间的相关性来检测数字I信道和数字Q信道信号之间的相位不平衡和幅度不平衡 。

公开(公告)号：US20070047634A1

公开(公告)日：2007-03-01

申请号：US11508569

申请日：2006-08-23

Applicant: Hyun-Il Kang ,  Chang-Seok Lee ,  Jae-Kon Lee ,  Jong-Ae Park ,  Jae-Sup Lee ,  Tae-Wook Kim ,  Sang-Hyun Woo

Inventor： Hyun-Il Kang ,  Chang-Seok Lee ,  Jae-Kon Lee ,  Jong-Ae Park ,  Jae-Sup Lee ,  Tae-Wook Kim ,  Sang-Hyun Woo

IPC: H04B17/00 ,  H04L27/10

CPC classification number: H04L25/061 ,  H03D3/008 ,  H04B17/101 ,  H04B17/14 ,  H04B17/21 ,  H04L1/243

Abstract: Disclosed is a method and an apparatus for self-calibrating direct current (DC) offset and imbalance between orthogonal signals, which may occur in a mobile transceiver. In the apparatus, a transmitter of a mobile terminal functions as a signal generator, and a receiver of the mobile terminal functions as a response characteristic detector. Further, a baseband processor applies test signals to the transmitter, receives the test signals returning from the receiver, and compensates the imbalance and DC offset for the transmitter side and the receiver side by using the test signals.

Abstract translation: 公开了用于自校准直流（DC）偏移和正交信号之间的不平衡的方法和装置，其可能发生在移动收发机中。 在该装置中，移动终端的发射机用作信号发生器，移动终端的接收机用作响应特性检测器。 此外，基带处理器将测试信号施加到发射机，接收从接收机返回的测试信号，并且通过使用测试信号来补偿发射机侧和接收机侧的不平衡和DC偏移。

公开(公告)号：US6057736A

公开(公告)日：2000-05-02

申请号：US135576

申请日：1998-08-18

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

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

IPC: H03G1/00 ,  H03F1/34 ,  H03G3/30

CPC classification number: H03F1/342 ,  H03G1/007 ,  H03F2200/151

Abstract: 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.

Abstract translation: 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：US5914641A

公开(公告)日：1999-06-22

申请号：US907480

申请日：1997-08-11

Applicant: Kwang-Jun Yun ,  Chang-Seok Lee ,  Seong-Jae Maeng ,  Jae-Jin Lee

Inventor： Kwang-Jun Yun ,  Chang-Seok Lee ,  Seong-Jae Maeng ,  Jae-Jin Lee

IPC: H03F3/20 ,  H03F1/02 ,  H03F1/30 ,  H03F3/193 ,  H03G3/30 ,  H03F3/191

CPC classification number: H03F1/0272 ,  H03F1/301 ,  H03F3/1935 ,  H03G3/3042 ,  H03F2200/18 ,  H03F2200/318

Abstract: A gate voltage control circuit of a power amplifier for reducing the power dissipation by improving the efficiency at an average output power and for enhancing the linearity of the power amplifier at a maximum output power, the gate voltage control circuit comprising an input terminal for receiving an output power signal from a power amplifier; an output power detecting circuit for detecting the output power signal and for converting the detected output power signal to a DC voltage signal; a voltage dividing circuit comprising at least two resistors for dividing a voltage difference between the DC voltage signal and a negative voltage in a ratio of resistances of the resistors; and an output terminal for supplying the divided voltage as a gate voltage control signal.

Abstract translation: 一种功率放大器的栅极电压控制电路，用于通过提高平均输出功率的效率并以最大的输出功率来提高功率放大器的线性来降低功耗，所述栅极电压控制电路包括：输入端子，用于接收 来自功率放大器的输出功率信号; 输出功率检测电路，用于检测输出功率信号并将检测到的输出功率信号转换成DC电压信号; 分压电路，包括至少两个电阻器，用于以所述电阻器的电阻的比率分压所述直流电压信号和负电压之间的电压差; 以及用于将分压电压提供为栅极电压控制信号的输出端子。

公开(公告)号：US5862144A

公开(公告)日：1999-01-19

申请号：US956913

申请日：1997-10-23

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

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

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

CPC classification number: G01R27/32

Abstract: 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.

Abstract translation: 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：US5745857A

公开(公告)日：1998-04-28

申请号：US562370

申请日：1995-11-22

Applicant: Sung-Jae Maeng ,  Chang-Seok Lee ,  Hyung-Moo Park

Inventor： Sung-Jae Maeng ,  Chang-Seok Lee ,  Hyung-Moo Park

IPC: H03F3/20 ,  H03F1/32 ,  H04B1/40

CPC classification number: H03F1/3205 ,  H04B1/40

Abstract: An analog/digital dual-mode power amplifier which provides a good linearity and a high efficiency comprises a first and a second power field effect transistors, and an input stage, a middle stage and an output stage. An input stage receives the input signal through an input terminal. A middle stage applies a second gate bias voltage appropriately controlled in response to an analog operating mode or a digital operating mode to a second power FET. An output stage provides matching at center frequency and has the impedance of less than 2.OMEGA. for a second harmonic and a third harmonic. Accordingly, a good linearity and high efficiency circuit can be obtained.

Abstract translation: 提供良好线性度和高效率的模拟/数字双模功率放大器包括第一和第二功率场效应晶体管，以及输入级，中间级和输出级。 输入级通过输入端接收输入信号。 中间阶段将适合于模拟操作模式或数字操作模式适当控制的第二栅极偏置电压施加到第二功率FET。 输出级提供中心频率的匹配，对于二次谐波和三次谐波具有小于2的OMEGA阻抗。 因此，可以获得良好的线性和高效率的电路。