公开(公告)号：US20060223485A1

公开(公告)日：2006-10-05

申请号：US11392677

申请日：2006-03-30

申请人： Tae Kim ,  Dong Lim ,  Bonkee Kim ,  Junghwan Lee ,  Kwyro Lee

发明人： Tae Kim ,  Dong Lim ,  Bonkee Kim ,  Junghwan Lee ,  Kwyro Lee

IPC分类号： H04B1/10 ,  H04B1/16

CPC分类号： H03J3/08 ,  H04B1/10

摘要： The present invention relates to a filter, and more particularly, to a tracking filter for selecting a channel of a wideband frequency. The tracking filter for selecting a channel of a wideband frequency, which is for increasing the selectivity of a wideband frequency, includes: a first tracking portion for filtering and amplifying a specific frequency band while converting a low input impedance of the input terminal of the tracking filter into a high impedance; a second tracking portion for maintaining the high impedance of the first tracking portion, and for filtering and amplifying the specific frequency band while increasing the selectivity Q of a frequency outputted from the first tracking portion; and a third tracking portion for filtering the specific band wherein has low input impedance and high output impedance.

公开(公告)号：US07539470B2

公开(公告)日：2009-05-26

申请号：US11392677

申请日：2006-03-30

申请人： Tae Wook Kim ,  Dong Gu Lim ,  Bonkee Kim ,  Junghwan Lee ,  Kwyro Lee

发明人： Tae Wook Kim ,  Dong Gu Lim ,  Bonkee Kim ,  Junghwan Lee ,  Kwyro Lee

IPC分类号： H04B1/10 ,  H04B1/16

CPC分类号： H03J3/08 ,  H04B1/10

摘要： The present invention relates to a filter, and more particularly, to a tracking filter for selecting a channel of a wideband frequency. The tracking filter for selecting a channel of a wideband frequency, which is for increasing the selectivity of a wideband frequency, includes: a first tracking portion for filtering and amplifying a specific frequency band while converting a low input impedance of the input terminal of the tracking filter into a high impedance; a second tracking portion for maintaining the high impedance of the first tracking portion, and for filtering and amplifying the specific frequency band while increasing the selectivity Q of a frequency outputted from the first tracking portion; and a third tracking portion for filtering the specific band wherein has low input impedance and high output impedance.

摘要翻译： 本发明涉及一种滤波器，更具体地说，涉及一种用于选择宽带频率信道的跟踪滤波器。 用于选择用于增加宽带频率的选择性的宽带频率的信道的跟踪滤波器包括：第一跟踪部分，用于在转换跟踪的输入端的低输入阻抗的同时对特定频带进行滤波和放大 滤波器成高阻抗; 用于保持第一跟踪部分的高阻抗的第二跟踪部分，并且用于在增加从第一跟踪部分输出的频率的选择性Q的同时对特定频带进行滤波和放大; 以及用于滤波具有低输入阻抗和高输出阻抗的特定频带的第三跟踪部分。

公开(公告)号：US07684772B2

公开(公告)日：2010-03-23

申请号：US11304566

申请日：2005-12-16

申请人： Junghwan Lee ,  Bonkee Kim

发明人： Junghwan Lee ,  Bonkee Kim

IPC分类号： H01Q11/12

CPC分类号： H04B1/30 ,  H03G3/3078

摘要： A tuner down-converts a Radio Frequency (RF) wireless signal and outputs the converted signal. The tuner compensates for a TOP depending on a temperature and: detects a received signal strength depending on a RF output of the tuner and transmitting the detected strength to a gain control unit; measures an operating temperature of the tuner and transmits the measured temperature value; receives the measured temperature value to compare the received temperature value with a reference TOP value, compensating compensates for the TOP value depending on variation in temperature and outputting outputs the compensated value; and receives the compensated value to control the RF output based on the TOP value and the received signal strength.

摘要翻译： 调谐器降频转换射频（RF）无线信号并输出​​转换的信号。 调谐器根据温度补偿TOP，并根据调谐器的RF输出检测接收到的信号强度，并将检测到的强度发送到增益控制单元; 测量调谐器的工作温度并传送测量的温度值; 接收测量的温度值，将接收到的温度值与参考TOP值进行比较，根据温度变化补偿TOP值，并输出输出补偿值; 并根据TOP值和接收信号强度接收补偿值以控制RF输出。

公开(公告)号：US20060135104A1

公开(公告)日：2006-06-22

申请号：US11178474

申请日：2005-07-12

申请人： Junghwan Lee ,  Bonkee Kim

发明人： Junghwan Lee ,  Bonkee Kim

IPC分类号： H04B7/00 ,  H04B1/06

CPC分类号： H03G3/3068 ,  H04W52/52

摘要： Disclosed herein is an automatic gain control circuit including a power detector. The automatic gain control circuit includes a receiving unit for receiving an RF signal and a gain control unit for controlling the gain of the receiving unit. The receiving unit comprises an amplification part including a low noise amplifier and a gain amplifier for amplifying the RF signal, a mixer for down-converting and tuning the RF signal output from the gain amplifier, a low pass filter for receiving the down-converted signal from the mixer, and an intermediate frequency variable gain amplifier for amplifying the signal filtered by the low pass filter to an intermediate frequency signal. The gain control unit comprises a received signal strength indicator connected to the output port of the low pass filter to detect the level of the output signal of the low pass filter, a first comparator for comparing the output signal level detected by the received signal strength indicator with a reference signal level, a power detector for detecting the output signal level of the amplification part of the receiving unit, a second comparator for comparing the output signal level detected by the power detector with a reference signal level, and a gain controller for increasing, decreasing or holding the gain in response to the signals output from the first and second comparators.

公开(公告)号：US07565124B2

公开(公告)日：2009-07-21

申请号：US11178474

申请日：2005-07-12

申请人： Junghwan Lee ,  Bonkee Kim

发明人： Junghwan Lee ,  Bonkee Kim

IPC分类号： H04B1/06 ,  H04B17/00

CPC分类号： H03G3/3068 ,  H04W52/52

摘要： Disclosed herein is an automatic gain control circuit including a power detector. The automatic gain control circuit includes a receiving unit for receiving an RF signal and a gain control unit for controlling the gain of the receiving unit. The receiving unit comprises an amplification part including a low noise amplifier and a gain amplifier for amplifying the RF signal, a mixer for down-converting and tuning the RF signal output from the gain amplifier, a low pass filter for receiving the down-converted signal from the mixer, and an intermediate frequency variable gain amplifier for amplifying the signal filtered by the low pass filter to an intermediate frequency signal. The gain control unit comprises a received signal strength indicator connected to the output port of the low pass filter to detect the level of the output signal of the low pass filter, a first comparator for comparing the output signal level detected by the received signal strength indicator with a reference signal level, a power detector for detecting the output signal level of the amplification part of the receiving unit, a second comparator for comparing the output signal level detected by the power detector with a reference signal level, and a gain controller for increasing, decreasing or holding the gain in response to the signals output from the first and second comparators.

摘要翻译： 这里公开了一种包括功率检测器的自动增益控制电路。 自动增益控制电路包括用于接收RF信号的接收单元和用于控制接收单元的增益的增益控制单元。 接收单元包括放大部分，其包括低噪声放大器和用于放大RF信号的增益放大器，用于下变频和调谐从增益放大器输出的RF信号的混频器，用于接收下变频信号的低通滤波器 以及用于将由低通滤波器滤波的信号放大到中频信号的中频可变增益放大器。 增益控制单元包括连接到低通滤波器的输出端口的接收信号强度指示器，以检测低通滤波器的输出信号的电平;第一比较器，用于比较由接收信号强度指示器检测的输出信号电平 具有参考信号电平的功率检测器，用于检测接收单元的放大部分的输出信号电平的功率检测器，用于将由功率检测器检测的输出信号电平与参考信号电平进行比较的第二比较器和用于增加的增益控制器 响应于从第一和第二比较器输出的信号减小或保持增益。

公开(公告)号：US20060135102A1

公开(公告)日：2006-06-22

申请号：US11304566

申请日：2005-12-16

申请人： Junghwan Lee ,  Bonkee Kim

发明人： Junghwan Lee ,  Bonkee Kim

IPC分类号： H04B1/06 ,  H04B7/00

CPC分类号： H04B1/30 ,  H03G3/3078

摘要： The present invention relates to temperature compensation of a tuner, and more particularly, to a tuner in which Take-Over Point (TOP) is compensated for according to a temperature. The tuner according to the present invention down-converts a Radio Frequency (RF) wireless signal and outputs the converted signal. The tuner compensates for a TOP depending on a temperature and includes: received signal strength detection means for detecting a received signal strength depending on a RF output of the tuner and transmitting the detected strength to a gain control unit; temperature measurement means for measuring an operating temperature of the tuner and transmitting the measured temperature value; a compensation unit for receiving the measured temperature value from the temperature measurement means to compare the received temperature value with a reference TOP value, compensating for the TOP value depending on variation in temperature and outputting the compensated value; and a gain control unit for receiving the compensated value from the compensation unit to controls the RF output based on the TOP value and the received signal strength received from the received signal strength detection means.

摘要翻译： 调谐器的温度补偿技术领域本发明涉及一种调谐器的温度补偿，更具体地，涉及一种根据温度来补偿接收点（TOP）的调谐器。 根据本发明的调谐器对射频（RF）无线信号进行下变频并输出转换的信号。 调谐器根据温度补偿TOP，并且包括：接收信号强度检测装置，用于根据调谐器的RF输出检测接收信号强度，并将检测到的强度传输到增益控制单元; 温度测量装置，用于测量调谐器的工作温度并传送测量的温度值; 补偿单元，用于从温度测量装置接收测量的温度值，以将接收到的温度值与参考TOP值进行比较，根据温度变化补偿TOP值并输出补偿值; 以及增益控制单元，用于从所述补偿单元接收所述补偿值，以基于从所述接收信号强度检测装置接收的所述TOP值和接收信号强度来控制所述RF输出。

公开(公告)号：US06756924B2

公开(公告)日：2004-06-29

申请号：US10438941

申请日：2003-05-16

申请人： Junghwan Lee ,  Bo-Eun Kim ,  Jinkyu Lim ,  Minsu Jeong ,  Bonkee Kim

发明人： Junghwan Lee ,  Bo-Eun Kim ,  Jinkyu Lim ,  Minsu Jeong ,  Bonkee Kim

IPC分类号： H03M110

CPC分类号： H03F3/45995 ,  H03F2200/294 ,  H03F2200/372

摘要： A signal processing apparatus for correcting DC offset in a communication system is provided. The signal processing apparatus comprises: a low noise amplifier (LNA) 301; a mixer 303 for mixing the output from said LNA 301 with local oscillation signal LO; a first offset correction amplifier 305 for amplifying output signal from said mixer 303 and for eliminating DC offset in the output signal in accordance with first control signal Vc31; a second offset correction amplifier 309 for amplifying output signal from said first offset correction amplifier 305 and for eliminating DC offset in the output signal in accordance with second control signal Vc32; a variable gain amplifier 311 for amplifying output from said second offset correction amplifier 309 wherein gain is controlled such that power level of output be maintained to a desired value; offset calibration mean 313 for calibrating DC offset in output from said variable gain amplifier 311; and offset correction mean 315 for outputting the first and second control signals Vc31 and Vc32 in accordance with the output from said offset calibration mean 313, to eliminate DC offset in the output from said variable gain amplifier 311.

摘要翻译： 提供一种用于校正通信系统中的DC偏移的信号处理装置。 信号处理装置包括：低噪声放大器（LNA）301; 用于将来自所述LNA 301的输出与本地振荡信号LO混频的混频器303; 用于放大来自所述混频器303的输出信号并根据第一控制信号Vc31消除输出信号中的DC偏移的第一偏移校正放大器305; 第二偏移校正放大器309，用于放大来自所述第一偏移校正放大器305的输出信号，并根据第二控制信号Vc32消除输出信号中的DC偏移; 用于放大来自所述第二偏移校正放大器309的输出的可变增益放大器311，其中增益被控制使得输出的功率电平保持到期望值; 用于校准来自所述可变增益放大器311的输出中的直流偏移的偏移校准平均值313; 以及偏移校正平均值315，用于根据所述偏移校准平均值313的输出输出第一和第二控制信号Vc31和Vc32，以消除所述可变增益放大器311的输出中的DC偏移。

公开(公告)号：US09388523B2

公开(公告)日：2016-07-12

申请号：US13600973

申请日：2012-08-31

申请人： Jonghee Han ,  Hoil Jeon ,  Junghwan Lee ,  Jaeseok Seong ,  Yeji Um ,  Nerry Son ,  Yoonsang Kim ,  On Kim ,  Wookjun Chung ,  Kyungah Lee

发明人： Jonghee Han ,  Hoil Jeon ,  Junghwan Lee ,  Jaeseok Seong ,  Yeji Um ,  Nerry Son ,  Yoonsang Kim ,  On Kim ,  Wookjun Chung ,  Kyungah Lee

IPC分类号： D06F39/14 ,  D06F39/02 ,  D06F29/00 ,  D06F39/12

CPC分类号： D06F39/02 ,  D06F29/00 ,  D06F39/12 ,  D06F39/14

摘要： An apparatus includes a first device to perform a first laundry treating operation and a second device to perform a second laundry treating operation. The first device has a first space to receive laundry through a first opening and the second device has a second space to receive laundry through a second opening. A controller controls the first and second devices to perform the first and second laundry treating operations respectively. The first device is coupled over the first device, and the first and second laundry treating operations are both washing operations or the first and second laundry treating operations are both drying operations.

摘要翻译： 一种装置包括执行第一衣物处理操作的第一装置和执行第二衣物处理操作的第二装置。 第一装置具有通过第一开口接收衣物的第一空间，并且第二装置具有通过第二开口接收衣物的第二空间。 控制器控制第一和第二装置分别执行第一和第二衣物处理操作。 第一装置连接在第一装置上，并且第一和第二衣物处理操作都是洗涤操作，或者第一和第二衣物处理操作都是干燥操作。

公开(公告)号：US09001022B2

公开(公告)日：2015-04-07

申请号：US13540311

申请日：2012-07-02

申请人： DongWoo Kim ,  DaeHo Cho ,  Junghwan Lee

发明人： DongWoo Kim ,  DaeHo Cho ,  Junghwan Lee

IPC分类号： G09G3/36 ,  G09G3/34

CPC分类号： G09G3/3406 ,  G09G3/3648 ,  G09G2320/0646 ,  G09G2320/0653

摘要： An LCD device and a driving method thereof are provided. The LCD device includes a panel, a timing controller, and a backlight unit. The panel is driven by a data driver and a gate driver. The timing controller controls the data driver and the gate driver. The backlight unit turns on or off a light source according to a dimming control signal transferred from the timing controller. The backlight unit is configured such that a turn-off delay time of a light source turned off according to the dimming control signal is shorter than a turn-on delay time of a light source turned on according to the dimming control signal.

摘要翻译： 提供了一种LCD装置及其驱动方法。 LCD装置包括面板，定时控制器和背光单元。 面板由数据驱动器和门驱动器驱动。 定时控制器控制数据驱动器和门驱动器。 背光单元根据从定时控制器传送的调光控制信号来打开或关闭光源。 背光单元被配置为使得根据调光控制信号关闭的光源的关闭延迟时间比根据调光控制信号打开的光源的导通延迟时间短。

公开(公告)号：USD689515S1

公开(公告)日：2013-09-10

申请号：US29397759

申请日：2011-07-20

申请人： Sooyoung Yang ,  Hoil Jeon ,  Junghwan Lee ,  Wookjin Park ,  Yeji Um ,  Jungmin Park ,  Nerry Son ,  Yunmi Park

设计人： Sooyoung Yang ,  Hoil Jeon ,  Junghwan Lee ,  Wookjin Park ,  Yeji Um ,  Jungmin Park ,  Nerry Son ,  Yunmi Park