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1. 发明授权

US07079194B2 Radio frequency modulator having C/L delay compensation function, and set-top-box using the same 失效
标题翻译：具有C / L延迟补偿功能的射频调制器，以及使用其的机顶盒
公开(公告)号：US07079194B2
公开(公告)日：2006-07-18
申请号：US10367828
申请日：2003-02-19
申请人： Jong Jin Lee , Sang Suk Kim , Chae Dong Go , Youn Joong Lee , Kyoung Soo Kwon
发明人： Jong Jin Lee , Sang Suk Kim , Chae Dong Go , Youn Joong Lee , Kyoung Soo Kwon
IPC分类号： H04N5/40
CPC分类号： H04N5/40 , H04N9/77 , H04N11/14
摘要： An RF modulator includes a C/L delay compensation function of compensating for a delay of a luminance signal with respect to a chrominance signal occurring during demodulating a video signal in a TV set. The RF modulator includes a C/L delay compensation unit delaying a luminance signal by 170 nsec and combining the delayed luminance signal with a chrominance signal to output a composite image signal having a C/l delay of −170 nsec and a frequency modulation unit modulating the video signal received from the C/L delay compensation unit into a high frequency signal of a predetermined broadcasting channel in a single module or package. The RF modulator outputs a video signal having the luminance signal delayed by 170 nsec with respect to the chrominance signal and complies with a C/L delay standard without adding any additional C/L delay compensation unit to the RF modulator.
摘要翻译： RF调制器包括C / L延迟补偿功能，用于补偿相对于在电视机中解调视频信号期间出现的色度信号的亮度信号的延迟。 RF调制器包括将亮度信号延迟170nsec的C / L延迟补偿单元，并将延迟的亮度信号与色度信号组合以输出具有-170nsec的C / l延迟的合成图像信号，以及调制单元将从C / L延迟补偿单元接收的视频信号转换为单个模块或封装中的预定广播信道的高频信号。 RF调制器输出相对于色度信号延迟了170nsec的亮度信号的视频信号并且符合C / L延迟标准，而不向RF调制器添加任何额外的C / L延迟补偿单元。

2. 发明申请

US20110074805A1 MEDIAN FILTER, APPARATUS AND METHOD FOR CONTROLLING AUTO BRIGHTRNESS USING THE SAME 审中-公开
标题翻译：中间过滤器，装置和使用其控制自动亮度的方法
公开(公告)号：US20110074805A1
公开(公告)日：2011-03-31
申请号：US12626821
申请日：2009-11-27
申请人： Byoung Won HWANG , Kyoung Soo Kwon , Youn Joong Lee
发明人： Byoung Won HWANG , Kyoung Soo Kwon , Youn Joong Lee
IPC分类号： G09G5/02
CPC分类号： G09G3/20 , G09G2320/0626 , G09G2320/0673 , G09G2360/144 , G09G2360/16
摘要： The present invention provides an automatic brightness control device including an illuminance sensing unit for sensing an external illuminance value in real time; a brightness classifying unit for classifying the illuminance value sensed in real time by the illuminance sensing unit into two or more configured brightness levels by comparing the sensed illuminance value with a reference illuminance value; a median filter unit for filtering a median value among the brightness levels classified by the brightness classifying unit; a gamma curve selecting unit for selecting a gamma curve which corresponds to the median value filtered by the median filter unit; and an illuminance control unit for controlling illuminance according to the gamma curve selected by the gamma curve selecting unit.
摘要翻译：本发明提供了一种自动亮度控制装置，包括用于实时感测外部照度值的照度感测单元; 亮度分类单元，用于通过将感测的照度值与参考照度值进行比较，将由照度感测单元实时感测的照度值分类为两个或更多个配置的亮度级; 中值滤波器单元，用于滤除由亮度分类单元分类的亮度级之间的中值; 伽马曲线选择单元，用于选择与由中值滤波器单元滤波的中值相对应的伽马曲线; 以及照度控制单元，用于根据由伽马曲线选择单元选择的伽马曲线来控制照度。

3. 发明申请

US20110292029A1 Apparatus and method for driving e-paper panel 审中-公开
标题翻译：电子纸面板驱动装置及方法
公开(公告)号：US20110292029A1
公开(公告)日：2011-12-01
申请号：US12923197
申请日：2010-09-08
申请人： Chan Woo Park , Kyung Ho Lee , Kyoung Soo Kwon , Youn Joong Lee , Oh Jo Kwon , Deuk Hee Park
发明人： Chan Woo Park , Kyung Ho Lee , Kyoung Soo Kwon , Youn Joong Lee , Oh Jo Kwon , Deuk Hee Park
IPC分类号： G09G5/00 , G09G3/34
CPC分类号： H02M3/33507 , G09G3/344 , G09G2330/021 , G09G2330/028 , G09G2360/16 , G09G2380/02 , H02M2001/0032 , Y02B70/16
摘要： Disclosed herein are an apparatus and a method for driving an e-paper panel. The e-paper panel driving apparatus includes a DC/DC converter that converts and outputs DC voltage to be input into a preset voltage and supplies the output voltage as a driving voltage of an e-paper panel; a sensing module that senses load conditions of the e-paper panel; and a control module that varies the driving frequency of the DC/DC converter according to the load conditions of the e-paper panel sensed by the sensing module. According to the present invention, the driving clock of the DC/DC converter that supplies the driving voltage to the e-paper panel is varied in consideration of the load conditions of the e-paper panel, thereby making it possible to prevent an image quality of the e-paper panel from being degraded due to unstable power supply, while simultaneously minimizing unnecessary power consumption of the e-paper panel driving apparatus.
摘要翻译：本文公开了一种用于驱动电子纸面板的装置和方法。电子纸面板驱动装置包括DC / DC转换器，其将要输入的直流电压转换并输出到预设电压，并将输出电压作为电子纸面板的驱动电压供给; 感测模块，其感测电子纸面板的负载状况; 以及控制模块，其根据感测模块感测到的电子纸面板的负载条件改变DC / DC转换器的驱动频率。根据本发明，考虑到电子纸面板的负载条件，向e-paper面板提供驱动电压的DC / DC转换器的驱动时钟是变化的，从而可以防止图像质量的电子纸面板由于电源不稳定而劣化，同时最小化电子纸面板驱动装置的不必要的功耗。

4. 发明授权

US07482845B2 Output buffer circuit 失效
标题翻译：输出缓冲电路
公开(公告)号：US07482845B2
公开(公告)日：2009-01-27
申请号：US11469219
申请日：2006-08-31
申请人： Youn Joong Lee , Won Tae Choi , Chan Woo Park , Byung Hoon Kim
发明人： Youn Joong Lee , Won Tae Choi , Chan Woo Park , Byung Hoon Kim
IPC分类号： H03B1/00
CPC分类号： H03F3/45219 , H03F3/3022 , H03F3/45183 , H03F2203/45118 , H03F2203/45248 , H03F2203/45366 , H03F2203/45536 , H03F2203/45626
摘要： Provided is an output buffer circuit having a slew rate increasing part configured with a switching element. The output buffer circuit can obtain an output voltage having a high slew rate even though a smaller amount of a bias current than that required in a conventional output buffer is used. Therefore, the output buffer circuit can reduce power consumption. In the output buffer circuit with a compensation capacitive load, an input part has two input terminal receiving differential input voltage signals, and an output part increases a gain of the differential input voltages. A current source biases the output part, and a slew rate increasing part is connected to the output part and the compensation capacitive load. The slew rate increasing part includes a switching element to increase a slew rate of the output buffer circuit.
摘要翻译：提供一种具有由开关元件构成的压摆率增加部分的输出缓冲器电路。即使使用比常规输出缓冲器中所需的偏置电流更小的量，输出缓冲器电路也可以获得具有高转换速率的输出电压。因此，输出缓冲电路可以降低功耗。在具有补偿容性负载的输出缓冲电路中，输入部分具有两个输入端接收差分输入电压信号，输出部分增加差分输入电压的增益。电流源偏置输出部分，并且转换速率增加部分连接到输出部分和补偿电容性负载。压摆率增加部分包括提高输出缓冲电路的转换速率的开关元件。

5. 发明授权

US07414441B2 Output buffer circuit 失效
标题翻译：输出缓冲电路
公开(公告)号：US07414441B2
公开(公告)日：2008-08-19
申请号：US11422568
申请日：2006-06-06
申请人： Youn Joong Lee , Won Tae Choi , Chan Woo Park , Byung Hoon Kim
发明人： Youn Joong Lee , Won Tae Choi , Chan Woo Park , Byung Hoon Kim
IPC分类号： H03K3/00
CPC分类号： H03F3/347 , H03F1/301 , H03F1/303 , H03F3/45753 , H03F2203/45212
摘要： An output buffer circuit includes an input stage of which one end receives an input voltage and the other end receives an output voltage; a class AB output stage that increases a current flowing in the output stage when the difference between the input and output voltages is larger than 0; a floating current source that biases the class AB output stage; a summing circuit that is connected to the input stage, the floating current source, and the class AB output stage so as to sum up the current supplied from the input stage and the internal current supplied from the floating current source; and an offset compensating circuit that is connected to the input stage and is composed of a plurality of switching elements and resistors so as to detect an offset voltage to compensate.
摘要翻译：输出缓冲电路包括输入级，其一端接收输入电压，另一端接收输出电压; AB类输出级，当输入和输出电压之间的差大于0时，增加在输出级中流动的电流; 偏置AB类输出级的浮动电流源; 连接到输入级，浮动电流源和AB类输出级的求和电路，以便对从输入级提供的电流和从浮动电流源提供的内部电流求和; 以及偏移补偿电路，其连接到输入级，并且由多个开关元件和电阻器组成，以便检测偏移电压以进行补偿。

6. 发明申请

US20090021848A1 APPARATUS AND METHOD OF DRIVING PIEZOELECTRIC ACTUATOR FOR AUTO-FOCUS 审中-公开
标题翻译：用于自动聚焦的驱动压电致动器的装置和方法
公开(公告)号：US20090021848A1
公开(公告)日：2009-01-22
申请号：US12176082
申请日：2008-07-18
申请人： Youn Joong Lee
发明人： Youn Joong Lee
IPC分类号： G02B7/02
CPC分类号： G02B7/08
摘要： There is provided an apparatus for driving a piezoelectric actuator moving a lens for auto-focus, the apparatus including: a lens position sensing unit sensing a position of the lens and generating a sensed lens position value; a lens control unit comparing the sensed lens position value with a target lens position value for auto-focus to determine a moving direction of the lens; and an actuator driving unit generating an actuator driving signal for driving the piezoelectric actuator to move the lens in the moving direction determined by the lens control unit, wherein the lens control unit temporarily stops the operation of the actuator driving unit, and receives the sensed lens position value corresponding to the lens position sensed by the lens position sensing unit and compares the sensed lens position value with the target lens position value while the operation of the actuator driving unit is temporarily stopped.
摘要翻译：提供一种用于驱动移动用于自动对焦的透镜的压电致动器的装置，该装置包括：透镜位置感测单元，感测透镜的位置并产生感测的透镜位置值; 透镜控制单元，将感测到的透镜位置值与用于自动聚焦的目标透镜位置值进行比较，以确定透镜的移动方向; 以及致动器驱动单元，其产生用于驱动压电致动器的致动器驱动信号，以在由透镜控制单元确定的移动方向上移动透镜，其中透镜控制单元暂时停止致动器驱动单元的操作，并且接收感测到的透镜位置值对应于由透镜位置检测单元感测的透镜位置，并且在致动器驱动单元的操作暂时停止时将感测到的透镜位置值与目标透镜位置值进行比较。

7. 发明授权

US07330143B2 Digital/analog converter 失效
标题翻译：数字/模拟转换器
公开(公告)号：US07330143B2
公开(公告)日：2008-02-12
申请号：US11428363
申请日：2006-06-30
申请人： Byung Hoon Kim , Won Tae Choi , Youn Joong Lee , Chan Woo Park
发明人： Byung Hoon Kim , Won Tae Choi , Youn Joong Lee , Chan Woo Park
IPC分类号： H03M1/78
CPC分类号： H03M1/682
摘要： The present invention relates to a digital/analog converter. The digital/analog converter includes a divided-voltage generating section that divides a reference supply voltage through the voltage distribution; a decoder section that receives a digital signal so as to output a decoded selection signal; a first divided-voltage selecting section that selects and outputs a plurality of divided voltages among the divided-voltages generated from the divided-voltage generating section on the basis of the selection signal output from the decoder section; a second divided-voltage selecting section that selects and outputs a plurality of divided-voltages among the divided-voltages output from the first divided-voltage selecting section on the basis of the selection signal output from the decoder section; a divided-voltage storing section that charges and discharges the plurality of divided-voltages output from the second divided-voltage selecting section; a third divided-voltage selecting section that selects a predetermined voltage among the divided-voltages discharged from the divided-voltages storing section on the basis of the selection signal output from the decoder; and a voltage output section that outputs the predetermined voltage selected from the third divided-voltage selecting section.
摘要翻译：本发明涉及数字/模拟转换器。该数/模转换器包括分压电压产生部分，该分压产生部分通过电压分配来划分参考电源电压; 解码器部分，其接收数字信号以输出解码的选择信号; 第一分压电压选择部分，根据从解码器部分输出的选择信号，在从分压产生部分产生的分压中选择和输出多个分压; 第二分压选择部，根据从解码部输出的选择信号，选择并输出从第一分压电压选择部输出的分压电压中的多个分压; 分压电压存储部，对从第二分压选择部输出的多个分压进行充放电; 第三分压电压选择部，其根据从解码器输出的选择信号，选择从分压存储部放电的分压中的规定电压; 以及电压输出部，输出从第三分压选择部选择的预定电压。

8. 发明申请

US20070030050A1 TEMPERATURE COMPENSATED BIAS SOURCE CIRCUIT 审中-公开
标题翻译：温度补偿偏置电源电路
公开(公告)号：US20070030050A1
公开(公告)日：2007-02-08
申请号：US11422574
申请日：2006-06-06
申请人： Youn Joong Lee , Won Tae Choi , Chan Woo Park , Byung Hoon Kim
发明人： Youn Joong Lee , Won Tae Choi , Chan Woo Park , Byung Hoon Kim
IPC分类号： H01L35/00
CPC分类号： G05F3/30
摘要： The present invention relates to a temperature-compensated bias source circuit. The temperature-compensated bias source circuit includes a bandgap reference circuit that outputs a first temperature-compensated reference voltage and a second reference voltage having a positive slope with respect to temperature; a voltage/current converter that converts the first and second reference voltages into a reference current; and an output buffer that is connected to the bandgap reference circuit and the voltage/current converter and buffers the first and second reference voltages, output by the bandgap reference circuit, so as to output to the voltage/current converter.
摘要翻译：本发明涉及温度补偿偏置源电路。温度补偿偏置源电路包括带隙参考电路，其输出相对于温度具有正斜率的第一温度补偿参考电压和第二参考电压; 电压/电流转换器，其将第一和第二参考电压转换为参考电流; 以及输出缓冲器，其连接到带隙基准电路和电压/电流转换器，并且缓冲由带隙基准电路输出的第一和第二参考电压，以输出到电压/电流转换器。

9. 发明授权

US07420496B2 Digital/analog converting apparatus with high resolution 失效
标题翻译：具有高分辨率的数字/模拟转换装置
公开(公告)号：US07420496B2
公开(公告)日：2008-09-02
申请号：US11565531
申请日：2006-11-30
申请人： Byung Hoon Kim , Taek Soo Kim , Youn Joong Lee , Chan Woo Park
发明人： Byung Hoon Kim , Taek Soo Kim , Youn Joong Lee , Chan Woo Park
IPC分类号： H03M1/66
CPC分类号： H03M1/682 , H03M1/765
摘要： A high resolution digital/analog converting apparatus for a spatial optical modulator includes a resistor string including a plurality of resistors connected to each other in series between operating voltage terminals to divide operating voltages into a plurality of voltages using the plural resistors, a decoder to provide switching signals corresponding to digital signals, and a switch unit to select two voltages from the plural voltages divided by the resistor string according to the switching signal of the decoder. The two voltages are adjacent to each other. Moreover, the digital/analog converting apparatus may include a digital/analog converter to perform a digital/analog conversion of the two voltages.
摘要翻译：用于空间光学调制器的高分辨率数字/模拟转换装置包括：电阻串，包括串联连接在工作电压端子之间的多个电阻器，用于使用多个电阻将工作电压分成多个电压;解码器，与数字信号对应的切换信号，以及开关单元，根据解码器的切换信号从由电阻串划分的多个电压中选择两个电压。两个电压彼此相邻。此外，数字/模拟转换装置可以包括数字/模拟转换器，以执行两个电压的数字/模拟转换。

10. 发明申请

US20080129145A1 PIEZOELECTRIC ACTUATOR AND METHOD FOR SEARCHING OPTIMAL DRIVING FREQUENCY USING THE SAME 审中-公开
标题翻译：压电致动器及使用该方法搜索最佳驱动频率的方法
公开(公告)号：US20080129145A1
公开(公告)日：2008-06-05
申请号：US11947464
申请日：2007-11-29
申请人： Youn Joong Lee , Kwon Kyoung Soo , Hwang Byoung Won , Kwon Oh Jo , Park Chan Woo
发明人： Youn Joong Lee , Kwon Kyoung Soo , Hwang Byoung Won , Kwon Oh Jo , Park Chan Woo
IPC分类号： H01L41/09
CPC分类号： H02N2/008
摘要： Provided is a piezoelectric actuator for driving a piezoelectric unit having two resonance points. The piezoelectric unit includes an optimal driving frequency calculating unit that adds a delta frequency, having a constant frequency difference from a first resonant frequency of the piezoelectric unit, to a characteristic resonant frequency obtained by analyzing characteristics of the piezoelectric unit, thereby calculating an optimal driving frequency; and an FM modulating unit that is connected to the optimal driving frequency calculating unit and generates the optimal driving frequency, calculated by the optimal driving frequency calculating unit, so as to supply to the piezoelectric unit.
摘要翻译：提供一种用于驱动具有两个共振点的压电单元的压电致动器。压电单元包括最佳驱动频率计算单元，其将具有从压电单元的第一谐振频率的恒定频率差的Δ频率加到通过分析压电单元的特性而获得的特征谐振频率，从而计算最佳驱动频率; FM调制单元，连接到最佳驱动频率计算单元，并且产生由最佳驱动频率计算单元计算的最佳驱动频率，以供应给压电单元。

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