公开(公告)号：US07636009B2

公开(公告)日：2009-12-22

申请号：US12014041

申请日：2008-01-14

申请人： Byeong Hak Jo ,  Yoo Sam Na ,  Kyoung Seok Park ,  Hyeon Seok Hwang ,  Seung Min Oh

发明人： Byeong Hak Jo ,  Yoo Sam Na ,  Kyoung Seok Park ,  Hyeon Seok Hwang ,  Seung Min Oh

IPC分类号： G05F1/10

CPC分类号： H03F1/301

摘要： There is provided a bias current generating apparatus capable of providing a bias current where a characteristic change is compensated, to one of an analog circuit and RF circuit where various characteristic changes occur according to a temperature, by generating bias currents having a plurality of temperature coefficients. The apparatus includes: a positive temperature coefficient current generator generating a positive temperature coefficient current in direct proportion to an absolute temperature; a zero temperature coefficient current generator generating a zero temperature coefficient current constant regardless of the absolute temperature; and an adjustable temperature coefficient current generator generating and outputting an adjustable temperature coefficient current by amplifying the positive temperature coefficient current by A times, amplifying the zero temperature coefficient current by B times, adding the two amplified temperature coefficient currents, wherein a temperature coefficient of the adjustable temperature coefficient current is varied by adjusting sizes of the A and B.

摘要翻译： 提供了一种偏置电流产生装置，其能够通过产生具有多个温度系数的偏置电流，将特性变化补偿的偏置电流提供给模拟电路和RF电路中的一个，其中根据温度发生各种特性变化 。 该装置包括：正温度系数电流发生器，其与绝对温度成正比地产生正温度系数电流; 产生零温度系数电流恒定的零温度系数电流发生器，与绝对温度无关; 以及可调温度系数电流发生器，通过将正温度系数电流放大A倍，并将零温度系数电流放大B倍，生成并输出可调温度系数电流，加上两个放大温度系数电流，其中， 调节温度系数电流可以通过调节A和B的尺寸来改变。

公开(公告)号：US20080180161A1

公开(公告)日：2008-07-31

申请号：US12014041

申请日：2008-01-14

申请人： Byeong Hak JO ,  Yoo Sam Na ,  Kyoung Seok Park ,  Hyeon Seok Hwang ,  Seung Min Oh

发明人： Byeong Hak JO ,  Yoo Sam Na ,  Kyoung Seok Park ,  Hyeon Seok Hwang ,  Seung Min Oh

IPC分类号： H01L35/00

CPC分类号： H03F1/301

摘要： There is provided a bias current generating apparatus capable of providing a bias current where a characteristic change is compensated, to one of an analog circuit and RF circuit where various characteristic changes occur according to a temperature, by generating bias currents having a plurality of temperature coefficients. The apparatus including: a positive temperature coefficient current generator generating a positive temperature coefficient current in direct proportion to an absolute temperature; a zero temperature coefficient current generator generating a zero temperature coefficient current constant regardless of the absolute temperature; and an adjustable temperature coefficient current generator generating and outputting an adjustable temperature coefficient current by amplifying the positive temperature coefficient current by A times, amplifying the zero temperature coefficient current by B times, adding the two amplified temperature coefficient currents, wherein a temperature coefficient of the adjustable temperature coefficient current is varied by adjusting sizes of the A and B.

摘要翻译： 提供了一种偏置电流产生装置，其能够通过产生具有多个温度系数的偏置电流，将特性变化补偿的偏置电流提供给模拟电路和RF电路中的一个，其中根据温度发生各种特性变化 。 该装置包括：正温度系数电流发生器，其与绝对温度成正比地产生正温度系数电流; 产生零温度系数电流恒定的零温度系数电流发生器，与绝对温度无关; 以及可调温度系数电流发生器，通过将正温度系数电流放大A倍，并将零温度系数电流放大B倍，生成并输出可调温度系数电流，加上两个放大温度系数电流，其中， 调节温度系数电流可以通过调节A和B的尺寸来改变。

公开(公告)号：US07525395B2

公开(公告)日：2009-04-28

申请号：US12140980

申请日：2008-06-17

申请人： Hyeon Seok Hwang ,  Yoo Sam Na ,  Moon Sun Kim ,  Byeong Hak Jo ,  Kyoung Seok Park

发明人： Hyeon Seok Hwang ,  Yoo Sam Na ,  Moon Sun Kim ,  Byeong Hak Jo ,  Kyoung Seok Park

IPC分类号： H01P1/22

CPC分类号： H03H7/25

摘要： There is provided a step attenuator having two Pi-type attenuators and one bridged-T type attenuator that share some resistors. The step attenuator is used to prevent a reduction in frequency range caused by use of MOS transistors and reduce attenuation of signal power and frequency band by the MOS transistors, thereby obtaining a low attenuation value and reducing input and output mismatch.

摘要翻译： 提供了具有两个Pi型衰减器和一个共享一些电阻器的一个桥接T型衰减器的阶跃衰减器。 步进衰减器用于防止使用MOS晶体管引起的频率范围的降低，并减少MOS晶体管对信号功率和频带的衰减，从而获得低衰减值并降低输入和输出失配。

公开(公告)号：US20090021331A1

公开(公告)日：2009-01-22

申请号：US12140980

申请日：2008-06-17

申请人： Hyeon Seok Hwang ,  Yoo Sam Na ,  Moon Sun Kim ,  Byeong Hak Jo ,  Kyoung Seok Park

发明人： Hyeon Seok Hwang ,  Yoo Sam Na ,  Moon Sun Kim ,  Byeong Hak Jo ,  Kyoung Seok Park

IPC分类号： H03H11/24

CPC分类号： H03H7/25

摘要： There is provided a step attenuator having two Pi-type attenuators and one bridged-T type attenuator that share some resistors. The step attenuator is used to prevent a reduction in frequency range caused by use of MOS transistors and reduce attenuation of signal power and frequency band by the MOS transistors, thereby obtaining a low attenuation value and reducing input and output mismatch.

摘要翻译： 提供了具有两个Pi型衰减器和一个共享一些电阻器的一个桥接T型衰减器的阶跃衰减器。 步进衰减器用于防止使用MOS晶体管引起的频率范围的降低，并减少MOS晶体管对信号功率和频带的衰减，从而获得低衰减值并降低输入和输出失配。

公开(公告)号：US08055228B2

公开(公告)日：2011-11-08

申请号：US12200924

申请日：2008-08-28

申请人： Kyoung Seok Park ,  Hyun Hwan Yoo ,  Yoo Sam Na

发明人： Kyoung Seok Park ,  Hyun Hwan Yoo ,  Yoo Sam Na

IPC分类号： H04B17/00

CPC分类号： H03G7/001 ,  H03F3/45183 ,  H03F3/45475 ,  H03F2200/78 ,  H03F2203/45048 ,  H03F2203/45138 ,  H03F2203/45466 ,  H03G3/3052 ,  H04B17/21 ,  H04B17/318

摘要： A received signal strength indicator according to an aspect of the invention may include a gain calibration section including a calibration limiter, a calibration load unit and a comparison and adjustment unit. The calibration load unit is connected to output terminals of the calibration limiter, and generating an output differential voltage whose gain is a unit gain when a predetermined input differential voltage is input to the calibration limiter, and a comparison and adjustment unit comparing the input differential voltage with the output differential voltage, and adjusting an output of a variable current source included in the calibration limiter so that the input differential voltage becomes identical to the output differential voltage.

摘要翻译： 根据本发明的一个方面的接收信号强度指示器可以包括增益校准部分，其包括校准限制器，校准加载单元和比较和调整单元。 校准负载单元连接到校准限制器的输出端子，并且当预定的输入差分电压被输入到校准限制器时产生增益为单位增益的输出差分电压，以及比较和调整单元，将输入差分电压 输出差分电压，并且调节校准限制器中包括的可变电流源的输出，使得输入差分电压变得与输出差分电压相同。

公开(公告)号：US07679543B2

公开(公告)日：2010-03-16

申请号：US12200923

申请日：2008-08-28

申请人： Kyoung Seok Park ,  Nam Heung Kim ,  Gyu Suck Kim

发明人： Kyoung Seok Park ,  Nam Heung Kim ,  Gyu Suck Kim

IPC分类号： H03M1/12

CPC分类号： H03M1/804 ,  H03D7/14 ,  H03D2200/006 ,  H03D2200/0074 ,  H03D2200/0086

摘要： Provided is a current sampling mixer that can be applied to a broadband broadcasting system. The current sampling mixer can change a structure of a current sampler including a plurality of capacitors to select and sum capacitors having a weight value given in the output, thereby performing a finite impulse response filter function and a harmonic rejection function.

摘要翻译： 提供了可以应用于宽带广播系统的电流采样混频器。 电流采样混频器可以改变包括多个电容器的电流采样器的结构，以选择和求和输出中给出的权重值的电容器，从而执行有限脉冲响应滤波器功能和谐波抑制功能。

公开(公告)号：US07705665B2

公开(公告)日：2010-04-27

申请号：US12200917

申请日：2008-08-28

申请人： Kyoung Seok Park

发明人： Kyoung Seok Park

IPC分类号： H03B1/00 ,  H03K5/00 ,  H04B1/10

CPC分类号： H03H11/1291 ,  H03H11/0422

摘要： Provided is a tuning circuit of a Gm (transconductance)-C (capacitance) filter. The tuning circuit tunes a transconductance using direct current incorporating variations of a capacitance, instead of a clock signal, in a Gm tuning mode, while using the clock signal in a capacitance tuning mode. As such, it is possible to prevent deterioration of a received signal caused by the clock signal.

摘要翻译： 提供了一个Gm（跨导）-C（电容）滤波器的调谐电路。 调谐电路使用在电容调谐模式下使用时钟信号时，在Gm调谐模式中使用并入电容变化的直流电而调谐跨导，而不是时钟信号。 因此，可以防止由时钟信号引起的接收信号的劣化。

公开(公告)号：US20100073081A1

公开(公告)日：2010-03-25

申请号：US12394677

申请日：2009-02-27

申请人： Yo Sub MOON ,  Jeong Ki Choi ,  Yoo Hwan Kim ,  Gyu Suck Kim ,  Kyoung Seok Park

发明人： Yo Sub MOON ,  Jeong Ki Choi ,  Yoo Hwan Kim ,  Gyu Suck Kim ,  Kyoung Seok Park

IPC分类号： H03K5/00

CPC分类号： H03H11/1291

摘要： An integrated tracking filter includes: an amplifying unit having first to third terminals, the first terminal being connected to an input stage and the second terminal being connected to an output stage, and amplifying a signal from the input stage; a loading unit connected between a power source stage and the second terminal of the amplifying unit; a current source connected between the third terminal of the amplifying unit and a ground; and a switched LC filter unit connected between the third terminal of the amplifying unit and the ground and varying a pass band of the signal.

摘要翻译： 集成跟踪滤波器包括：放大单元，具有第一至第三端子，第一端子连接到输入级，第二端子连接到输出级，并且放大来自输入级的信号; 连接在电源级与放大单元的第二端子之间的负载单元; 连接在放大单元的第三端子与地之间的电流源; 以及连接在放大单元的第三端子和地之间并改变信号的通带的开关LC滤波器单元。

公开(公告)号：US20090251350A1

公开(公告)日：2009-10-08

申请号：US12200923

申请日：2008-08-28

申请人： Kyoung Seok Park ,  Nam Heung Kim ,  Gyu Suck Kim

发明人： Kyoung Seok Park ,  Nam Heung Kim ,  Gyu Suck Kim

IPC分类号： H03M1/12

CPC分类号： H03M1/804 ,  H03D7/14 ,  H03D2200/006 ,  H03D2200/0074 ,  H03D2200/0086

摘要： Provided is a current sampling mixer that can be applied to a broadband broadcasting system. The current sampling mixer can change a structure of a current sampler including a plurality of capacitors to select and sum capacitors having a weight value given in the output, thereby performing a finite impulse response filter function and a harmonic rejection function.

摘要翻译： 提供了可以应用于宽带广播系统的电流采样混频器。 电流采样混频器可以改变包括多个电容器的电流采样器的结构，以选择和求和输出中给出的权重值的电容器，从而执行有限脉冲响应滤波器功能和谐波抑制功能。

公开(公告)号：US20090231027A1

公开(公告)日：2009-09-17

申请号：US12200917

申请日：2008-08-28

申请人： Kyoung Seok Park

发明人： Kyoung Seok Park

IPC分类号： H03B1/00

CPC分类号： H03H11/1291 ,  H03H11/0422

摘要： Provided is a tuning circuit of a Gm (transconductance)-C (capacitance) filter. The tuning circuit tunes a transconductance using direct current incorporating variations of a capacitance, instead of a clock signal, in a Gm tuning mode, while using the clock signal in a capacitance tuning mode. As such, it is possible to prevent deterioration of a received signal caused by the clock signal.

摘要翻译： 提供了一个Gm（跨导）-C（电容）滤波器的调谐电路。 调谐电路使用在电容调谐模式下使用时钟信号时，在Gm调谐模式中使用并入电容变化的直流电而调谐跨导，而不是时钟信号。 因此，可以防止由时钟信号引起的接收信号的劣化。