公开(公告)号：US07514980B2

公开(公告)日：2009-04-07

申请号：US11420728

申请日：2006-05-26

Applicant: Jeong Ki Choi ,  Won Jin Baek ,  Hyun Hwan Yoo ,  Seung Min Oh

Inventor： Jeong Ki Choi ,  Won Jin Baek ,  Hyun Hwan Yoo ,  Seung Min Oh

IPC: G06F7/556 ,  G06G7/20 ,  G06G7/24

CPC classification number: H03G7/001

Abstract: The present invention relates to an exponential function generator which is realized with only CMOS element without BJT element, not limited by the physical properties of the element or a square circuit, and not complicated in its configuration, and a variable gain amplifier using the same. The exponential function generator includes a voltage-current converter, 1st to nth curve generators for mirroring the current from the voltage-current converter, outputting a current adjusted according to a predetermined ratio, and an output end for outputting the sum of the current from the 1st to nth curve generators. The exponential current generator is configured to generate the current exponentially adjusted according to the control voltage.

Abstract translation: 本发明涉及一种仅使用没有BJT元件的CMOS元件实现的指数函数发生器，不受元件或平方电路的物理特性限制，并且其结构不复杂，以及使用其的可变增益放大器。 指数函数发生器包括电压 - 电流转换器，用于镜像来自电压 - 电流转换器的电流的第1至第n曲线发生器，输出根据预定比率调节的电流，以及输出端，用于输出来自 第1〜第n曲线发生器。 指数电流发生器被配置为根据控制电压产生指数调节的电流。

公开(公告)号：US20060256216A1

公开(公告)日：2006-11-16

申请号：US11403980

申请日：2006-04-13

Applicant: Kishi Takahiko ,  Sato Takahiro ,  Won-Jin Baek ,  Jeong-Ki Choi

Inventor： Kishi Takahiko ,  Sato Takahiro ,  Won-Jin Baek ,  Jeong-Ki Choi

IPC: H04N5/247

CPC classification number: H03D7/166 ,  H03D3/007 ,  H03D7/18

Abstract: A downconverter and upconverter are provided which can obtain a sufficient image rejection ratio in a low-Intermediate Frequency (IF) scheme while reducing power consumption and can suppress Error Vector Magnitude (EVM)-related degradation in a zero-IF scheme. A complex-coefficient transversal filter rejects one side of a positive or negative frequency, and converts a Radio Frequency (RF) signal to a complex RF signal configured by real and imaginary parts. A local oscillator outputs a real local signal with a set frequency. A half-complex mixer, connected to the complex-coefficient transversal filter and the local oscillator, performs a frequency conversion process by multiplying the complex RF signal output from the complex-coefficient transversal filter and the real local signal output from the local oscillator, and outputs a complex signal of a frequency separated by the set frequency from a frequency of the RF signal.

公开(公告)号：US20110080353A1

公开(公告)日：2011-04-07

申请号：US12654425

申请日：2009-12-18

Applicant: Shin Jae Kang ,  Kyung Uk Kim ,  Won Jin Baek

Inventor： Shin Jae Kang ,  Kyung Uk Kim ,  Won Jin Baek

IPC: G06F3/041 ,  H05K1/00

CPC classification number: G06F3/044

Abstract: Disclosed is a touch screen to accurately receive a user selection by applying differential signals to the electrode patterns of a touch screen, each having a different capacitance.

Abstract translation: 公开了一种触摸屏，用于通过对每个具有不同电容的触摸屏的电极图案施加差分信号来准确地接收用户选择。

公开(公告)号：US07627295B2

公开(公告)日：2009-12-01

申请号：US11403980

申请日：2006-04-13

Applicant: Kishi Takahiko ,  Sato Takahiro ,  Won-Jin Baek ,  Jeong-Ki Choi

Inventor： Kishi Takahiko ,  Sato Takahiro ,  Won-Jin Baek ,  Jeong-Ki Choi

IPC: H04B17/02

CPC classification number: H03D7/166 ,  H03D3/007 ,  H03D7/18

Abstract: A downconverter and upconverter are provided which can obtain a sufficient image rejection ratio in a low-Intermediate Frequency (IF) scheme while reducing power consumption and can suppress Error Vector Magnitude (EVM)-related degradation in a zero-IF scheme. A complex-coefficient transversal filter rejects one side of a positive or negative frequency, and converts a Radio Frequency (RF) signal to a complex RF signal configured by real and imaginary parts. A local oscillator outputs a real local signal with a set frequency. A half-complex mixer, connected to the complex-coefficient transversal filter and the local oscillator, performs a frequency conversion process by multiplying the complex RF signal output from the complex-coefficient transversal filter and the real local signal output from the local oscillator, and outputs a complex signal of a frequency separated by the set frequency from a frequency of the RF signal.

Abstract translation: 提供下变频器和上变频器，其可以在降低功率消耗的同时在低中频（IF）方案中获得足够的镜像抑制比，并且可以抑制零中频方案中的误差矢量幅度（EVM）相关的劣化。 复系数横向滤波器拒绝正或负频率的一侧，并将射频（RF）信号转换为由实部和虚部配置的复合RF信号。 本地振荡器输出具有设定频率的实际本地信号。 连接到复系数横向滤波器和本地振荡器的半复合混频器通过将从复系数横向滤波器输出的复RF信号与从本地振荡器输出的实局信号相乘来执行频率转换处理，以及 从RF信号的频率输出由设定频率分开的频率的复信号。

公开(公告)号：US20070077905A1

公开(公告)日：2007-04-05

申请号：US11469274

申请日：2006-08-31

Applicant: Seung Min OH ,  Won Jin BAEK

Inventor： Seung Min OH ,  Won Jin BAEK

IPC: H04B1/40 ,  H04B1/06

CPC classification number: H03B27/00 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B2200/0078

Abstract: In a quadrature voltage controlled oscillator, a first oscillator includes a first resonant circuit for generating a preset first resonant frequency and a first pair of cross-coupled transistors for supplying energy to the first resonant frequency to generate first and second signals having a phase difference of 180°. A second oscillator includes a second resonant circuit for generating a preset second resonant frequency and a second pair of cross-coupled transistors for generating third and fourth signals for supplying energy to the second resonant frequency having a phase difference of 180°. A first current source is connected between a first common node of the first cross-coupled transistor pair and a ground. A second current source is connected between a second common node of the second cross-coupled transistor pair and the ground. A differential load is connected between a third common node of the first and second current sources and the ground.

Abstract translation: 在正交压控振荡器中，第一振荡器包括用于产生预设的第一谐振频率的第一谐振电路和用于向第一谐振频率提供能量的第一对交叉耦合晶体管，以产生具有相位差的第一和第二信号 180°。 第二振荡器包括用于产生预设的第二谐振频率的第二谐振电路和用于产生用于向具有180°的相位差的第二谐振频率提供能量的第三和第四信号的第二对交叉耦合晶体管。 第一电流源连接在第一交叉耦合晶体管对的第一公共节点和地之间。 第二电流源连接在第二交叉耦合晶体管对的第二公共节点和地之间。 差分负载连接在第一和第二电流源的第三公共节点与地之间。

公开(公告)号：US20060293012A1

公开(公告)日：2006-12-28

申请号：US11422060

申请日：2006-06-02

Applicant: BYEONG HAK JO ,  WON JIN BAEK ,  JEONG KI CHOI ,  KYUNG SEOK PARK

Inventor： BYEONG HAK JO ,  WON JIN BAEK ,  JEONG KI CHOI ,  KYUNG SEOK PARK

IPC: H04B1/06

CPC classification number: H03D7/18 ,  H03D7/166 ,  H03J2200/40

Abstract: The present invention relates to a terrestrial DMB receiver capable of eliminating image noise and minimizing the number of external elements. In the invention, a terrestrial DMB signal is down-converted into a baseband I/Q signal and then up-converted into a predetermined intermediate frequency signal. The invention solves the problematic image noise and minimizes the number of external elements at the same time.

Abstract translation: 本发明涉及能够消除图像噪声并最小化外部元件的数量的地面DMB接收机。 在本发明中，地面DMB信号被下变频为基带I / Q信号，然后上变频成预定的中频信号。 本发明解决了有问题的图像噪声，同时最大限度地减少了外部元件的数量。

公开(公告)号：US20070044024A1

公开(公告)日：2007-02-22

申请号：US11428345

申请日：2006-06-30

Applicant: YOO SAM NA ,  BYUNG SUNG KIM ,  WON JIN BAEK ,  MOON SUN KIM

Inventor： YOO SAM NA ,  BYUNG SUNG KIM ,  WON JIN BAEK ,  MOON SUN KIM

IPC: G06F9/00

CPC classification number: H03F1/3252

Abstract: The present invention relates to a derivative superposition circuit for linearization. The derivative superposition circuit for linearization includes a first active element that is provided with first to third terminals and in which the magnitude and direction of current flowing the second terminal to the third terminal changes on the basis of the magnitude of a voltage applied between the first and second terminals; and a second active element that is provided with first to third terminals and has complementary characteristics with the first active element. The first terminals of the first and second active elements are connected to each other so that a predetermined operational bias voltage is maintained by first and second power supplies through a first impedance, and are connected to an input end through a second impedance. The third terminals of the first and second active elements are connected to an output end, and the second terminals of the first and second active elements are connected to the second power supply through a third impedance.

Abstract translation: 本发明涉及用于线性化的导数叠加电路。 用于线性化的导数叠加电路包括：第一有源元件，其设置有第一至第三端子，并且其中流过第二端子的电流的大小和方向根据施加在第一端子与第三端子之间的电压的大小而变化 和第二终端; 以及设置有第一至第三端子并且与第一有源元件具有互补特性的第二有源元件。 第一和第二有源元件的第一端子彼此连接，使得通过第一阻抗由第一和第二电源维持预定的操作偏置电压，并且通过第二阻抗连接到输入端。 第一和第二有源元件的第三端子连接到输出端，并且第一和第二有源元件的第二端子通过第三阻抗连接到第二电源。

公开(公告)号：US07076221B2

公开(公告)日：2006-07-11

申请号：US10695758

申请日：2003-10-30

Applicant: Young Jin Lee ,  Hyo Seok Kwon ,  Won Jin Baek ,  Jin Taek Lee ,  Hyun Hwan Yoo ,  Jeong Ki Choi

Inventor： Young Jin Lee ,  Hyo Seok Kwon ,  Won Jin Baek ,  Jin Taek Lee ,  Hyun Hwan Yoo ,  Jeong Ki Choi

IPC: H04B1/18 ,  H04N5/50

CPC classification number: H03J1/0041 ,  H03J2200/02

Abstract: Disclosed herein is a digital automatic fine tuning method and apparatus, which is capable of detecting a difference between a nominal frequency and an intermediate frequency generated in a tuner using a counter, and applying the counted data of the counter as a fine tuning value for the intermediate frequency without using a decoder by controlling the reset and preset operations of the counter that counts the frequency of the intermediate frequency.

Abstract translation: 这里公开了一种数字自动微调方法和装置，其能够使用计数器检测在调谐器中产生的标称频率和中频之间的差异，并将计数器的计数数据应用于微调值 通过控制对中频的频率进行计数的计数器的复位和预置操作而不使用解码器的中频。

公开(公告)号：US20130085692A1

公开(公告)日：2013-04-04

申请号：US13607969

申请日：2012-09-10

Applicant: Hyun Suk LEE ,  Won Jin BAEK ,  Yun Hee LEE

Inventor： Hyun Suk LEE ,  Won Jin BAEK ,  Yun Hee LEE

IPC: G06F19/00

CPC classification number: G01R21/06 ,  H04B2203/5408 ,  H04B2203/5433

Abstract: Disclosed herein is a power measurement system capable of power of electric devices without performing a quantization process through a separate analog-digital converter for voltage. The power measurement system includes a smart meter measuring a voltage root mean square value input to an electrical device; and a power measurement device measuring power of the electrical equipment using a voltage root mean square value Vrms measured by the smarter meter and a current instantaneous values of power lines connected to the electric device.

Abstract translation: 这里公开了一种功率测量系统，其能够通过用于电压的单独模数转换器执行量化处理的电力装置的功率。 功率测量系统包括测量输入到电气设备的电压均方根值的智能电表; 以及功率测量装置，其使用由智能仪表测量的电压均方根值Vrms和连接到电气装置的电力线的电流瞬时值来测量电气设备的功率。

公开(公告)号：US07570935B2

公开(公告)日：2009-08-04

申请号：US11428345

申请日：2006-06-30

Applicant: Yoo Sam Na ,  Byung Sung Kim ,  Won Jin Baek ,  Moon Sun Kim

Inventor： Yoo Sam Na ,  Byung Sung Kim ,  Won Jin Baek ,  Moon Sun Kim

IPC: H04B1/10 ,  H04B1/04

CPC classification number: H03F1/3252

Abstract: A derivative superposition circuit for linearization includes a first active element that is provided with first to third terminals and in which the magnitude and direction of current flowing from the second terminal to the third terminal changes on the basis of the magnitude of a voltage applied between the first and second terminals; and a second active element that is provided with first to third terminals and has complementary characteristics with the first active element. The first terminals of the first and second active elements are connected to each other so that a predetermined operational bias voltage is maintained by first and second power supplies through a first impedance, and are connected to an input end through a second impedance. The third terminals of the first and second active elements are connected to an output end, and the second terminals of the first and second active elements are connected to the second power supply through a third impedance.

Abstract translation: 用于线性化的导数叠加电路包括设置有第一至第三端子的第一有源元件，并且其中从第二端子流到第三端子的电流的大小和方向基于施加在第二端子之间的电压的大小而变化 第一和第二终端; 以及设置有第一至第三端子并且与第一有源元件具有互补特性的第二有源元件。 第一和第二有源元件的第一端子彼此连接，使得通过第一阻抗由第一和第二电源维持预定的操作偏置电压，并且通过第二阻抗连接到输入端。 第一和第二有源元件的第三端子连接到输出端，并且第一和第二有源元件的第二端子通过第三阻抗连接到第二电源。