公开(公告)号：US20070224964A1

公开(公告)日：2007-09-27

申请号：US11617583

申请日：2006-12-28

申请人： Yong IL KWON ,  Myeung Su KIM ,  Joon Hyung LIM ,  Tah Joon PARK ,  Jin Ho KO ,  Sang Hyun CHO ,  Jong Moon KIM

发明人： Yong IL KWON ,  Myeung Su KIM ,  Joon Hyung LIM ,  Tah Joon PARK ,  Jin Ho KO ,  Sang Hyun CHO ,  Jong Moon KIM

IPC分类号： H04B1/26

CPC分类号： H04B1/26 ,  H03D7/165

摘要： A sub-harmonic frequency conversion device includes: a voltage controlled oscillator for generating first to eighth oscillation frequency (LO) signals having a constant phase difference; a first mixer for performing a switching operation to mix the first to fourth LO signals having a phase difference of 90° and input signals, and outputting first IF signals; and a second mixer for performing a switching operation to mix the fifth to eighth LO signals having a phase difference of 90° and the input signals, and outputting second IF signals. Accordingly, the sub-harmonic frequency conversion device can use the low-frequency LO signal, and the power consumption can be reduced. In addition, because the mixers are implemented using a symmetric structure of the MOS transistors, the circuit configuration can be easily implemented.

摘要翻译： 子谐波变频装置包括：压控振荡器，用于产生具有恒定相位差的第一至第八振荡频率（LO）信号; 第一混频器，用于执行切换操作以混合具有90°相位差的第一至第四LO信号和输入信号，并输出第一IF信号; 以及第二混频器，用于执行开关操作以混合具有90°相位差的第五至第八LO信号和输入信号，并输出第二IF信号。 因此，副谐波变频装置可以使用低频LO信号，能够降低功耗。 此外，由于使用MOS晶体管的对称结构来实现混频器，因此可以容易地实现电路配置。

公开(公告)号：US20070080754A1

公开(公告)日：2007-04-12

申请号：US11534453

申请日：2006-09-22

申请人： Dong Min PARK ,  Seong Hwan CHO ,  Tah Joon PARK ,  Yong Il KWON ,  Joon Hyung LIM ,  Myeung Su KIM

发明人： Dong Min PARK ,  Seong Hwan CHO ,  Tah Joon PARK ,  Yong Il KWON ,  Joon Hyung LIM ,  Myeung Su KIM

IPC分类号： H03L7/099

CPC分类号： H03L5/00 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1278

摘要： In a voltage controlled oscillator, a resonant circuit generates a resonant frequency in response to a tuning voltage. A differential oscillator includes first and second transistors differentially cross-coupled to the resonant circuit. The first and second transistors supply energy to the resonant circuit to oscillate the resonant frequency from the resonant circuit, thereby generating first and second oscillation signals having a phase difference of 180 degree. Also, the first and second transistors adjust the first and second oscillation signals to a uniform level in response to a body bias voltage. In addition, an output level detector detects a level of the first and second oscillation signals from the differential oscillator and supplies the body bias voltage corresponding to the detected level to a body of each of the first and second transistors.

摘要翻译： 在压控振荡器中，谐振电路响应于调谐电压产生谐振频率。 差分振荡器包括与谐振电路差分交叉耦合的第一和第二晶体管。 第一和第二晶体管向谐振电路提供能量以从谐振电路振荡谐振频率，从而产生具有180度相位差的第一和第二振荡信号。 此外，第一和第二晶体管响应于体偏置电压将第一和第二振荡信号调整到均匀的电平。 此外，输出电平检测器检测来自差分振荡器的第一和第二振荡信号的电平，并将与检测电平相对应的体偏置电压提供给第一和第二晶体管中的每一个的主体。

公开(公告)号：US08630217B2

公开(公告)日：2014-01-14

申请号：US13342676

申请日：2012-01-03

申请人： Han Jin Cho ,  Jae Hyung Lee ,  Myeung Su Kim ,  Joon Hyung Lim ,  Tah Joon Park

发明人： Han Jin Cho ,  Jae Hyung Lee ,  Myeung Su Kim ,  Joon Hyung Lim ,  Tah Joon Park

IPC分类号： H04W52/02

CPC分类号： H04W52/0235 ,  Y02D70/166

摘要： A wireless communications terminal includes: an RF wake-up detection unit detecting a first RF signal including an RF ID for waking up; and a wireless communications unit waking up when the RF ID included in the first RF signal detected by the RF wake-up detection unit matches a pre-set reference ID in a sleep mode.

摘要翻译： 无线通信终端包括：RF唤醒检测单元，检测包括用于唤醒的RF ID的第一RF信号; 以及当由所述RF唤醒检测单元检测到的所述第一RF信号中包含的RF ID与睡眠模式中的预设参考ID匹配时，所述无线通信单元被唤醒。

公开(公告)号：US20130224084A1

公开(公告)日：2013-08-29

申请号：US13884441

申请日：2011-11-09

申请人： Joon-Hyung Lim ,  Jae-Sune Jun

发明人： Joon-Hyung Lim ,  Jae-Sune Jun

IPC分类号： C01B13/11

CPC分类号： C01B13/11 ,  B01J19/087 ,  B01J2219/0809 ,  B01J2219/0871 ,  B01J2219/0875 ,  C01B2201/64 ,  C01B2201/70 ,  C02F2201/782

摘要： An ozone generating device includes three or more cooling channels each having a through-hole formed in a central region thereof and a coolant flow path formed therein. The cooling channels are arranged side by side such that the through-holes thereof overlap with one another. The ozone generating device further includes electric discharge units interposed between the cooling channels adjoining each other and configured to generate electric discharge when applied with a high voltage. Each of the electric discharge units has a central hole formed in alignment with the through-hole. The ozone generating device is configured such that, when the electric discharge units are applied with a high voltage with the cooling channels kept grounded, oxygen supplied to the electric discharge units is decomposed into ozone which in turn is discharged through an internal space defined by the through-hole and the central hole.

摘要翻译： 臭氧发生装置包括三个或更多个冷却通道，每个冷却通道都具有形成在其中心区域中的通孔和形成在其中的冷却剂流动路径。 冷却通道并排布置，使得其通孔彼此重叠。 臭氧发生装置还包括放置在彼此相邻的冷却通道之间并且被配置为当施加高电压时产生放电的放电单元。 每个放电单元具有与通孔对准形成的中心孔。 臭氧发生装置被配置为使得当放电单元被施加高电压而冷却通道保持接地时，供给到放电单元的氧气分解成臭氧，臭氧又通过由 通孔和中心孔。

公开(公告)号：US20130107775A1

公开(公告)日：2013-05-02

申请号：US13342676

申请日：2012-01-03

申请人： Han Jin CHO ,  Jae Hyung Lee ,  Myeung Su Kim ,  Joon Hyung Lim ,  Tah Joon Park

发明人： Han Jin CHO ,  Jae Hyung Lee ,  Myeung Su Kim ,  Joon Hyung Lim ,  Tah Joon Park

IPC分类号： H04W52/02

CPC分类号： H04W52/0235 ,  Y02D70/166

摘要： A wireless communications terminal includes: an RF wake-up detection unit detecting a first RF signal including an RF ID for waking up; and a wireless communications unit waking up when the RF ID included in the first RF signal detected by the RF wake-up detection unit matches a pre-set reference ID in a sleep mode.

摘要翻译： 无线通信终端包括：RF唤醒检测单元，检测包括用于唤醒的RF ID的第一RF信号; 以及当由所述RF唤醒检测单元检测到的所述第一RF信号中包含的RF ID与睡眠模式中的预设参考ID匹配时，所述无线通信单元被唤醒。

公开(公告)号：US07907026B2

公开(公告)日：2011-03-15

申请号：US12358887

申请日：2009-01-23

申请人： Sang Hoon Hwang ,  Tah Joon Park ,  Myeung Su Kim ,  Kyung Hee Hong ,  Joon Hyung Lim ,  Yong Il Kwon

发明人： Sang Hoon Hwang ,  Tah Joon Park ,  Myeung Su Kim ,  Kyung Hee Hong ,  Joon Hyung Lim ,  Yong Il Kwon

IPC分类号： H03B5/12

CPC分类号： H03L7/099 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03L7/0991

摘要： The present invention relates to a broadband voltage controlled oscillator and a method for generating a broadband oscillation frequency; and, more particularly, to a broadband voltage controlled oscillator and a method for generating a broadband oscillation frequency capable of operating over a wide frequency band by including a weighted current cell to select two frequency band modes, generating various levels of total 64 oscillation frequencies by including a variable frequency tank and a capacitor bank, and further facilitating adjustment of the total 64 oscillation frequencies distributed over the wide frequency band by including a control signal generator for generating control signals each of which is applied to the weighted current cell, the variable frequency tank and the capacitor bank by a BDD (Binary Decision Diagram) technique.

摘要翻译： 本发明涉及一种宽带压控振荡器和一种产生宽带振荡频率的方法， 更具体地，涉及一种宽带压控振荡器和一种用于产生能够在宽频带上工作的宽带振荡频率的方法，该方法包括加权的当前小区以选择两个频带模式，通过以下方式产生总共64个振荡频率的各种级别 包括可变频率储能器和电容器组，并且进一步有助于调整分布在宽频带上的总共64个振荡频率，包括用于产生控制信号的控制信号发生器，每个控制信号被施加到加权的当前单元，可变频率 水箱和电容器组通过BDD（二进制决策图）技术。

公开(公告)号：US20080100391A1

公开(公告)日：2008-05-01

申请号：US11928720

申请日：2007-10-30

申请人： Joon Hyung LIM ,  Tah Joon Park ,  Kwang Mook Lee ,  Koon Shik Cho

发明人： Joon Hyung LIM ,  Tah Joon Park ,  Kwang Mook Lee ,  Koon Shik Cho

IPC分类号： H03K3/02

CPC分类号： H03K3/011 ,  H03L7/06

摘要： There is provided an RC oscillation circuit capable of adjusting an oscillation frequency, and an oscillation method thereof. The RC oscillation circuit including: an RC oscillator including a variable resistor and a variable capacitor, the RC oscillator generating an RC oscillating signal having a frequency determined by a resistance of the variable resistor and a capacitance of the variable capacitor; a counter counting a clock number of a reference oscillating signal corresponding to one period of the RC oscillating signal to generate a first count value, the reference oscillating signal having a preset frequency; and a frequency controller controlling a frequency of the RC oscillating signal by determining the resistance of the variable resistor and the capacitance of the variable capacitor such that a difference between the first count value and a preset second count value is smaller than a preset first critical value.

摘要翻译： 提供了能够调节振荡频率的RC振荡电路及其振荡方法。 RC振荡电路包括：包括可变电阻器和可变电容器的RC振荡器，RC振荡器产生具有由可变电阻器的电阻和可变电容器的电容确定的频率的RC振荡信号; 计数对应于RC振荡信号的一个周期的参考振荡信号的时钟数，以产生第一计数值，所述参考振荡信号具有预置频率; 以及频率控制器，通过确定可变电阻器的电阻和可变电容器的电容来控制RC振荡信号的频率，使得第一计数值和预设的第二计数值之间的差小于预设的第一临界值 。

公开(公告)号：US20080055012A1

公开(公告)日：2008-03-06

申请号：US11756032

申请日：2007-05-31

申请人： Joon Hyung LIM ,  Myeung Su KIM ,  Yong Il KWON ,  Tah Joon PARK

发明人： Joon Hyung LIM ,  Myeung Su KIM ,  Yong Il KWON ,  Tah Joon PARK

IPC分类号： H03K3/57

CPC分类号： H03K4/06

摘要： A micropower RC oscillator comprises a current generating section including a current source that generates a current; and a variable resistor of which the magnitude is variably set and which is configured by combining resistor elements at a predetermined ratio, the resistor elements having opposite characteristics to each other with respect to a temperature change, the variable resistor adjusting the magnitude of the generated current; a start-up circuit section connected to the current generating section and fixing a bias operating point to a constant value such that the current generating section stably generates a current; a charge and discharge circuit section including a variable capacitor, of which the magnitude is variably set, and a plurality of transistors, the charge and discharge circuit section charging and discharging the variable capacitor by using the current generated from the current generating section and the plurality of transistors; an oscillation signal output section connected to the charge and discharge circuit section and including a plurality of inverters, the oscillation signal output section outputting an oscillation signal of which the frequency is determined by the resistance of the variable resistor and the capacitance of the variable capacitor; and an inverter driving power supply section mirroring the current generated from the current generating section and then providing the mirrored current as a driving power supply of the inverters.

摘要翻译： 微功率RC振荡器包括电流产生部分，其包括产生电流的电流源; 以及可变电阻器，其大小可变地设置，并且通过以预定比例组合电阻器元件来构成，所述电阻器元件相对于温度变化具有彼此相反的特性，所述可变电阻器调节所产生的电流的大小 ; 连接到电流产生部分的启动电路部分，并将偏压工作点固定为恒定值，使得电流产生部件稳定地产生电流; 一个充电和放电电路部分，包括其可变电容值的可变电容器，以及多个晶体管，该充放电电路部分通过使用从电流产生部分产生的电流和多个晶体管对可变电容器进行充电和放电 的晶体管; 振荡信号输出部分连接到充放电电路部分并且包括多个反相器，振荡信号输出部分输出频率由可变电阻器的电阻确定的振荡信号和可变电容器的电容; 以及反相器驱动电源部，其将从电流产生部产生的电流反射，然后提供镜像电流作为逆变器的驱动电源。

公开(公告)号：US20100033999A1

公开(公告)日：2010-02-11

申请号：US12332265

申请日：2008-12-10

申请人： Joon Hyung Lim ,  Tah Joon Park ,  Myeung Su Kim ,  Kyung Hee Hong ,  Yong II Kwon

发明人： Joon Hyung Lim ,  Tah Joon Park ,  Myeung Su Kim ,  Kyung Hee Hong ,  Yong II Kwon

IPC分类号： H02M7/217

CPC分类号： H02M7/103

摘要： Provided is a low-power radio frequency (RF) direct current (DC) rectifier. The low-power RF DC rectifier includes a rectification circuit with first and second to n-th rectification units sequentially rectifying an RF signal input through a first input terminal and a second input terminal. The first rectification unit is disposed between the first and second input terminals and a first output terminal of the first rectification unit. The second rectification unit is disposed between the first rectification unit and a second output terminal of the second rectification unit, is biased by the first rectification unit. The n-th rectification unit is disposed between an immediately previous rectification unit and a rectification output terminal of the rectification circuit, is biased by a rectified voltage output from an immediately preceding rectification unit, and outputs the rectified RF signal through the rectification output terminal.

摘要翻译： 提供了一种低功率射频（RF）直流（DC）整流器。 低功率RF直流整流器包括具有第一和第二至第n整流单元的整流电路，其顺序地对通过第一输入端子和第二输入端子输入的RF信号进行整流。 第一整流单元设置在第一和第二输入端子与第一整流单元的第一输出端子之间。 第二整流单元设置在第一整流单元和第二整流单元的第二输出端子之间，被第一整流单元偏置。 第n整流单元配置在整流电路的前一整流单元与整流输出端之间，由前一整流单元输出的整流电压偏置，并通过整流输出端输出整流后的RF信号。

公开(公告)号：US07612623B2

公开(公告)日：2009-11-03

申请号：US11756032

申请日：2007-05-31

申请人： Joon Hyung Lim ,  Myeung Su Kim ,  Yong Il Kwon ,  Tah Joon Park

发明人： Joon Hyung Lim ,  Myeung Su Kim ,  Yong Il Kwon ,  Tah Joon Park

IPC分类号： H03K3/26

CPC分类号： H03K4/06

摘要： A micropower RC oscillator comprises a current generating section including a current source that generates a current; and a variable resistor of which the magnitude is variably set and which is configured by combining resistor elements at a predetermined ratio, the resistor elements having opposite characteristics to each other with respect to a temperature change, the variable resistor adjusting the magnitude of the generated current; a start-up circuit section connected to the current generating section and fixing a bias operating point to a constant value such that the current generating section stably generates a current; a charge and discharge circuit section including a variable capacitor, of which the magnitude is variably set, and a plurality of transistors, the charge and discharge circuit section charging and discharging the variable capacitor by using the current generated from the current generating section and the plurality of transistors; an oscillation signal output section connected to the charge and discharge circuit section and including a plurality of inverters, the oscillation signal output section outputting an oscillation signal of which the frequency is determined by the resistance of the variable resistor and the capacitance of the variable capacitor; and an inverter driving power supply section mirroring the current generated from the current generating section and then providing the mirrored current as a driving power supply of the inverters.

摘要翻译： 微功率RC振荡器包括电流产生部分，其包括产生电流的电流源; 以及可变电阻器，其大小可变地设置，并且通过以预定比例组合电阻器元件来构成，所述电阻器元件相对于温度变化具有彼此相反的特性，所述可变电阻器调节所产生的电流的幅度 ; 连接到电流产生部分的启动电路部分，并将偏压工作点固定为恒定值，使得电流产生部件稳定地产生电流; 一个充电和放电电路部分，包括其可变电容值的可变电容器，以及多个晶体管，该充放电电路部分通过使用从电流产生部分产生的电流和多个晶体管对可变电容器进行充电和放电 的晶体管; 振荡信号输出部分连接到充放电电路部分并且包括多个反相器，振荡信号输出部分输出频率由可变电阻器的电阻确定的振荡信号和可变电容器的电容; 以及反相器驱动电源部，其将从电流产生部产生的电流反射，然后提供镜像电流作为逆变器的驱动电源。