公开(公告)号：US20090160362A1

公开(公告)日：2009-06-25

申请号：US12108778

申请日：2008-04-24

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

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

IPC分类号： H05B37/02

CPC分类号： H05B33/086

摘要： Provided is an apparatus for controlling lighting brightness including a light control unit that generates a control signal for controlling the brightness of a plurality of lightings; a digital signal generating unit that converts a signal corresponding to the control signal at each period so as to generate non-periodic digital signals; and a driving voltage generating unit that generate driving voltages by converting the digital signals into analog signals.

摘要翻译： 提供一种用于控制照明亮度的装置，包括产生用于控制多个照明亮度的控制信号的光控制单元; 数字信号发生单元，其在每个周期转换对应于控制信号的信号，以便产生非周期数字信号; 以及通过将数字信号转换为模拟信号来产生驱动电压的驱动电压产生单元。

公开(公告)号：US20090102866A1

公开(公告)日：2009-04-23

申请号：US12111034

申请日：2008-04-28

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

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

IPC分类号： G09G5/10

CPC分类号： H05B33/0818

摘要： There is provided a lighting control apparatus using digital sigma-delta modulation, the apparatus including: a control part supplying a brightness control signal; a sigma-delta modulation part generating a carry signal according to the brightness control signal of the control part and a predetermined threshold signal by using a sigma-delta modulation method; and a lighting driving part generating a driving current according to the carry signal of the sigma-delta modulation part and supplying the generated driving current to a lighting part.

摘要翻译： 提供了一种使用数字Σ-Δ调制的照明控制装置，该装置包括：提供亮度控制信号的控制部分; Σ-Δ调制部分，通过使用Σ-Δ调制方法，根据控制部分的亮度控制信号和预定的阈值信号产生进位信号; 以及照明驱动部，其根据所述Σ-Δ调制部的进位信号产生驱动电流，并将产生的驱动电流供给到照明部。

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：US20100150041A1

公开(公告)日：2010-06-17

申请号：US12430313

申请日：2009-04-27

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

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

IPC分类号： G08C17/00

CPC分类号： H04Q9/02 ,  H04Q2209/43 ,  H04Q2209/883

摘要： Disclosed is a wireless communication apparatus having a self sensing function, which can detect an object by use of a wake-up function without employing a separate sensor. The wireless communication apparatus includes a communication unit wirelessly communicating with a server forming a wireless network, and a wake-up unit waking up the communication unit under the control of the server when the communication unit is in sleep mode, and sensing the presence of an object within a preset communication range according to a reflection signal, which is a signal reflected by the object after being transmitted from the communication unit.

摘要翻译： 公开了一种具有自感功能的无线通信装置，其可以通过使用唤醒功能而不使用单独的传感器来检测对象。 该无线通信装置包括与形成无线网络的服务器无线通信的通信单元，以及当通信单元处于睡眠模式时，在服务器的控制下唤醒通信单元的唤醒单元，并且感测到 根据反射信号在预设通信范围内对象，该反射信号是从通信单元发送之后由对象反射的信号。

公开(公告)号：US20130082672A1

公开(公告)日：2013-04-04

申请号：US13348464

申请日：2012-01-11

申请人： Myeung Su KIM ,  Joon Hyung LIM ,  Sang Hoon HWANG ,  Sang Hyun MIN ,  Han Jin CHO ,  Tah Joon PARK

发明人： Myeung Su KIM ,  Joon Hyung LIM ,  Sang Hoon HWANG ,  Sang Hyun MIN ,  Han Jin CHO ,  Tah Joon PARK

IPC分类号： G05F1/10

CPC分类号： G05F1/575

摘要： There is provided a low drop-out regulator. The low drop-out regulator includes an amplifier including an odd number of operational amplifiers connected to one another in series, and an output unit including a pass transistor operated by an output from the amplifier and generating an output voltage to be applied to a load, wherein the pass transistor is an N-channel transistor, and the amplifier controls a feedback loop gain between an output terminal of one of the odd number of operational amplifiers and the output unit. The feedback loop gain may be controlled independently from the trans-conductance of the pass transistor, whereby the stable output voltage may be generated, even in the case that the load and the input voltage are changed, and the design parameter may be simplified.

摘要翻译： 提供了一个低压差调节器。 低压差调节器包括一个包括串联连接的奇数运算放大器的放大器，以及一个输出单元，包括一个由放大器的输出端工作的通过晶体管，并产生一个要加到负载上的输出电压， 其中所述传输晶体管是N沟道晶体管，并且所述放大器控制所述奇数个运算放大器之一的输出端与所述输出单元之间的反馈环路增益。 反馈环路增益可以独立于传输晶体管的跨导电阻来控制，由此即使在改变负载和输入电压的情况下也可以产生稳定的输出电压，并且可以简化设计参数。

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：US20100033162A1

公开(公告)日：2010-02-11

申请号：US12274122

申请日：2008-11-19

申请人： Joon Hyung LIM ,  Tah Joon Park

发明人： Joon Hyung LIM ,  Tah Joon Park

IPC分类号： G01R19/00

CPC分类号： G01R19/16542

摘要： Provided is a low-power direct current detector. The low-power direct current detector includes a main current source circuit generating an ultra-low current, a limitation circuit limiting the current generated by the main current source circuit to lower than a preset current, and a voltage detection circuit biased by the ultra-low current generated by the main current source circuit to detect an input DC voltage.

摘要翻译： 提供了一种低功率直流电流检测器。 低功率直流电流检测器包括产生超低电流的主电流源电路，将由主电流源电路产生的电流限制为低于预设电流的限制电路，以及由超低电流偏置的电压检测电路， 由主电流源电路产生的低电流来检测输入直流电压。

公开(公告)号：US20090295340A1

公开(公告)日：2009-12-03

申请号：US12259358

申请日：2008-10-28

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

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

IPC分类号： G05F1/00

CPC分类号： G05F1/565 ,  Y10S323/901

摘要： There is provided a regulator with soft-start using a current source. The regulator with soft-start may include: a power switch unit including first and second power switches connected between a power supply terminal and an output terminal; a load capacitor connected between the output terminal and a ground; a voltage detection unit detecting a voltage of the output terminal; a comparison unit comparing a detection voltage and a predetermined reference voltage, and outputting first and second switching signals; a current generating a predetermined constant current; a current control unit switching a connection between a control terminal of the first power switch and the current source unit according to the first switching, and switching a connection between the control terminal of the first power switch and the ground according to the second switching signal; and an error amplification unit amplifying an error voltage between the detection.

摘要翻译： 提供了一个使用电流源的软启动调节器。 具有软启动的调节器可以包括：电源开关单元，包括连接在电源端子和输出端子之间的第一和第二电源开关; 连接在输出端子和地之间的负载电容器; 电压检测单元，检测输出端子的电压; 比较单元，比较检测电压和预定参考电压，并输出第一和第二开关信号; 产生预定恒定电流的电流; 电流控制单元根据第一开关切换第一电力开关的控制端子与电流源单元之间的连接，并根据第二开关信号切换第一电力开关的控制端子与地的连接; 以及放大检测之间的误差电压的误差放大单元。

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。