公开(公告)号：US08270538B2

公开(公告)日：2012-09-18

申请号：US12467627

申请日：2009-05-18

申请人： Sangho Shin ,  Sang-Hyun Cho ,  Seok-Oh Yun ,  Jong-Moon Kim

发明人： Sangho Shin ,  Sang-Hyun Cho ,  Seok-Oh Yun ,  Jong-Moon Kim

IPC分类号： H03D1/24

CPC分类号： H04B1/28 ,  H04L25/06

摘要： Disclosed is a wireless communication system, more particularly, a receiver and a chipset for DSRC. A receiver includes: a low noise amplifier (LNA) amplifying a received radio (RF) signal while minimizing amplification of noise included in the received RF signal; a mixer down-converting a frequency of an output signal of the LNA to output an intermediate frequency (IF) signal; a frequency synthesizer generating and outputting a frequency signal for the frequency-down conversion of the mixer to the mixer; a bandpass filter passing a necessary band of a channel in an output signal of the mixer; a log amplifier amplifying an output signal of the bandpass filter in log scale and outputting a received signal strength indicator of an output signal of the bandpass filter; a detector comparing an output of the log amplifier with a predetermined binary threshold value, outputting a first binary signal when the output of the log amplifier is less than the predetermined binary threshold value, and outputting a second binary signal when the output of the log amplifier is equal to or greater than the predetermined binary threshold value; a switch serially connected with an output terminal of the detector; and a switch controller comparing the received signal strength indicator of the output signal of the log amplifier with an RSSI threshold, opening the switch when the received signal strength indicator is less than the RSSI threshold, and closing the switch when the received signal strength indicator is equal to or grater than the RSSI threshold.

摘要翻译： 公开了一种无线通信系统，更具体地，用于DSRC的接收机和芯片组。 接收机包括：放大接收的无线电（RF）信号的低噪声放大器（LNA），同时最小化包含在所接收的RF信号中的噪声的放大; 混频器降频转换LNA的输出信号的频率以输出中频（IF）信号; 频率合成器，生成并输出用于混频器的降频转换的混频器的频率信号; 带通滤波器，在混频器的输出信号中通过通道的必要频带; 对数放大器，以对数标度放大带通滤波器的输出信号，并输出带通滤波器的输出信号的接收信号强度指示符; 将对数放大器的输出与预定的二进制阈值进行比较的检测器，当对数放大器的输出小于预定的二进制阈值时输出第一二进制信号，并且当对数放大器的输出输出时输出第二二进制信号 等于或大于预定二进制阈值; 与检测器的输出端子串联连接的开关; 以及开关控制器，将对数放大器的输出信号的接收信号强度指示符与RSSI阈值进行比较，当接收信号强度指示符小于RSSI阈值时打开开关，并且当接收信号强度指示符为 等于或大于RSSI阈值。

公开(公告)号：US07706818B2

公开(公告)日：2010-04-27

申请号：US11566016

申请日：2006-12-01

申请人： Sang Hyun Cho

发明人： Sang Hyun Cho

IPC分类号： H04Q7/20 ,  H04B1/38

CPC分类号： H04M1/64 ,  H04M1/72552

摘要： A method of responding to a call and mobile communication terminal implementing the same are disclosed. The present invention includes a call request receiving step of receiving a call request from a calling party, a text message preparing step of preparing a text message, and a message communication step of converting the prepared text message to a voice message and transmitting the voice message. Accordingly, in case that a terminal user has difficulty in answering an incoming call from a calling party or intends to continue using the mobile communication terminal prior to receiving the incoming call, the terminal user is able to continue having a conversation using a text message.

摘要翻译： 公开了一种响应于执行该呼叫的移动通信终端的方法。 本发明包括从呼叫方接收呼叫请求的呼叫请求接收步骤，准备文本消息的文本消息准备步骤以及将准备好的文本消息转换成语音消息并发送语音消息的消息通信步骤 。 因此，在终端用户难以从呼叫方应答呼入或打算在接收到呼入之前继续使用移动通信终端的情况下，终端用户能够使用文本消息继续进行通话。

公开(公告)号：US20090084676A1

公开(公告)日：2009-04-02

申请号：US12006115

申请日：2007-12-31

申请人： Hwan Soo Shin ,  Sang Hyun Cho

发明人： Hwan Soo Shin ,  Sang Hyun Cho

IPC分类号： C23C10/02

CPC分类号： H01M4/8896 ,  H01M8/1004 ,  H01M8/1007 ,  Y02P70/56

摘要： The present invention provides a heating-pressurizing jig for manufacturing a 5-layer membrane electrode assembly (MEA), in which: metal plates are formed integrally with heating plates to obviate the difficulty in increasing the temperature of the metal plates to a normal state every time when manufacturing a plurality of 5-layer MEAs; an MEA is mounted to external guides while being spaced apart from lower guides at predetermined intervals to prevent the MEA from being dried, contracted and deformed by the heated metal plates; and the lower guides and upper plate supports are elastically supported by springs, respectively, so that the external guides can respond in real time to the change in the thickness caused when upper and lower gas diffusion layers are compressed, thus preventing the MEA from being bent.

摘要翻译： 本发明提供一种用于制造5层膜电极组件（MEA）的加热加压夹具，其中：金属板与加热板一体地形成，以避免难以将金属板的温度升高到正常状态 制造多个5层MEA时的时间; MEA被安装到外部引导件，同时以预定的间隔与下引导件间隔开，以防止MEA被加热的金属板干燥，收缩和变形; 并且下引导件和上板支撑件分别由弹簧弹性地支撑，使得外部引导件可以实时响应上下气体扩散层被压缩时引起的厚度变化，从而防止MEA弯曲 。

公开(公告)号：US06943315B2

公开(公告)日：2005-09-13

申请号：US10437372

申请日：2003-05-13

申请人： Sang Hyun Cho ,  Chang Hwan Hwang ,  Yong Shin Choi ,  Dong Yoon Shin

发明人： Sang Hyun Cho ,  Chang Hwan Hwang ,  Yong Shin Choi ,  Dong Yoon Shin

IPC分类号： B23K11/11 ,  B23K37/02 ,  B23K11/00 ,  B23K11/30

CPC分类号： B23K37/0235 ,  B23K2101/04

摘要： The automatic robot spot welding apparatus includes a welding bench including clamping frames, which are uniformly arrayed and have receiving portions for the sparer grids, and have, at both ends of the welding bench, fixing plates for the guide tubes and the instrumentation tube which are inserted into the spacer grids; a robot moving on a running rail, which is arranged in parallel to the welding bench, and having a welding gun for welding the spacer grids with the guide and instrumentation tubes; guide tube electrodes for being inserted into the guide tubes for the spot welding; an instrumentation tube electrode for being inserted into the instrumentation tube; and a controller having an apparatus control block and a robot control block for controlling components based on a program stored therein.

摘要翻译： 自动机器人点焊装置包括：焊接台，其包括均匀排列的夹持框架，并且具有用于支架栅格的接收部分，并且在焊接台的两端处具有用于引导管和仪表管的固定板 插入间隔栅格; 在与焊接台平行布置的行进轨道上移动的机器人，以及具有用于将间隔栅格与引导件和仪表管焊接的焊枪; 引导管电极插入引导管中用于点焊; 用于插入仪表管的仪表管电极; 以及控制器，其具有装置控制块和用于基于存储在其中的程序来控制部件的机器人控制块。

公开(公告)号：US20140033253A1

公开(公告)日：2014-01-30

申请号：US13982136

申请日：2012-01-30

申请人： Sang Hyun Cho ,  Woo Seok Ahn ,  Youk Kwon ,  Jang Hee Lee ,  Young Wau Lim

发明人： Sang Hyun Cho ,  Woo Seok Ahn ,  Youk Kwon ,  Jang Hee Lee ,  Young Wau Lim

IPC分类号： H04N21/422

CPC分类号： H04N21/42222 ,  G06F3/0346 ,  G09G5/08 ,  H04N21/42204 ,  H04N21/431

摘要： The present invention relates to an image display device and a method for operating same. According to an embodiment of the present invention, a method for operating an image display device uses a remote controller, and comprises the steps of: displaying a pointer in a first area of a display; receiving movement coordinate information of the pointer from the remote controller; restoring the first area using a prestored image when the first area does not overlap a second area where a pointer is displayed, based on the movement coordinate information; storing an image of the second area; and displaying a pointer in the second area. This enables the pointer of the remote controller to be easily displayed.

摘要翻译： 本发明涉及图像显示装置及其操作方法。 根据本发明的实施例，一种用于操作图像显示装置的方法使用遥控器，并且包括以下步骤：在显示器的第一区域中显示指针; 从遥控器接收指针的移动坐标信息; 基于所述移动坐标信息，当所述第一区域不与指示体的第二区域重叠时，使用预存储图像恢复所述第一区域; 存储第二区域的图像; 以及在第二区域中显示指针。 这样可以方便地显示遥控器的指针。

公开(公告)号：US08274317B2

公开(公告)日：2012-09-25

申请号：US12882132

申请日：2010-09-14

申请人： Sang Hyun Cho ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Seung Tak Ryu

发明人： Sang Hyun Cho ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Seung Tak Ryu

IPC分类号： H03L7/06

CPC分类号： H03L7/0995 ,  H03L7/099 ,  H03L2207/06

摘要： A phase-locked loop (PLL) circuit including a voltage-controlled oscillator (VCO) with a variable gain is provided. A phase frequency detector (PFD) detects a phase difference between a reference signal and a PLL feedback signal. A charge pump and a loop filter sequentially process an output signal of the PFD. A VCO has different gains according to a mode transition. A control voltage applied to the VCO is selected from an output signal of the loop filter and an additional control signal according to the mode transition.

摘要翻译： 提供了包括具有可变增益的压控振荡器（VCO）的锁相环（PLL）电路。 相位频率检测器（PFD）检测参考信号和PLL反馈信号之间的相位差。 电荷泵和环路滤波器依次处理PFD的输出信号。 根据模式转换，VCO具有不同的增益。 根据模式转换，从环路滤波器的输出信号和附加控制信号中选择施加到VCO的控制电压。

公开(公告)号：US20110148485A1

公开(公告)日：2011-06-23

申请号：US12882132

申请日：2010-09-14

申请人： Sang Hyun CHO ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Seung Tak Ryu

发明人： Sang Hyun CHO ,  Hui Dong Lee ,  Kwi Dong Kim ,  Jong Kee Kwon ,  Seung Tak Ryu

IPC分类号： H03L7/06

CPC分类号： H03L7/0995 ,  H03L7/099 ,  H03L2207/06

摘要： A phase-locked loop (PLL) circuit including a voltage-controlled oscillator (VCO) with a variable gain is provided. A phase frequency detector (PFD) detects a phase difference between a reference signal and a PLL feedback signal. A charge pump and a loop filter sequentially process an output signal of the PFD. A VCO has different gains according to a mode transition. A control voltage applied to the VCO is selected from an output signal of the loop filter and an additional control signal according to the mode transition.

摘要翻译： 提供了包括具有可变增益的压控振荡器（VCO）的锁相环（PLL）电路。 相位频率检测器（PFD）检测参考信号和PLL反馈信号之间的相位差。 电荷泵和环路滤波器依次处理PFD的输出信号。 根据模式转换，VCO具有不同的增益。 根据模式转换，从环路滤波器的输出信号和附加控制信号中选择施加到VCO的控制电压。

公开(公告)号：US20110122991A1

公开(公告)日：2011-05-26

申请号：US12815320

申请日：2010-06-14

申请人： Sang Yeoul Ahn ,  Keun Je Lee ,  Sang Hyun Cho ,  Jea Suk Park ,  Sung Keun Lee ,  Byung Ki Ahn ,  Tae Won Lim

发明人： Sang Yeoul Ahn ,  Keun Je Lee ,  Sang Hyun Cho ,  Jea Suk Park ,  Sung Keun Lee ,  Byung Ki Ahn ,  Tae Won Lim

IPC分类号： G01N23/04

CPC分类号： G01N23/046 ,  G01N2223/419 ,  H01M8/04671

摘要： The present invention features a pinhole detection system of a fuel cell that preferably includes a stage on which a fuel cell element unit is disposed to be detected, a drive portion that is configured to move the stage so as to rotate the fuel cell element unit, a X-ray source that is disposed at one side of the stage to apply X-ray to the fuel cell element unit that rotates, an image detector that detects X-ray penetrating the fuel cell element unit, and a computer tomography that reconstructs tormogram that is detected by the image detector to a three dimension. Preferably, the fuel cell element unit is rotated on the stage, X-ray is applied to the rotating unit to gain the tomogram thereof, and the tomogram is reconstructed to be a three-dimensional image through a computerized tomography (CT scanning) such that the pinhole formed within the unit can be effectively detected.

摘要翻译： 本发明的特征在于一种燃料电池的针孔检测系统，其优选地包括：燃料电池元件单元设置在其上以被检测的台;驱动部，其被配置为使所述台移动以使所述燃料电池元件单元旋转， 设置在所述台的一侧以对所述旋转的燃料电池元件单元施加X射线的X射线源，检测穿过所述燃料电池元件单元的X射线的图像检测器，以及重建图形的计算机断层摄影 由图像检测器检测到三维。 优选地，燃料电池元件单元在平台上旋转，将X射线施加到旋转单元以获得其断层图像，并且通过计算机断层摄影（CT扫描）将断层图像重建为三维图像，使得 可以有效地检测在该单元内形成的针孔。

公开(公告)号：US20090124221A1

公开(公告)日：2009-05-14

申请号：US12191775

申请日：2008-08-14

申请人： Sang Do CHO ,  Sang Hyun Cho ,  Jin Ho Ko ,  Hak Sun Kim ,  Yoo Sam Na

发明人： Sang Do CHO ,  Sang Hyun Cho ,  Jin Ho Ko ,  Hak Sun Kim ,  Yoo Sam Na

IPC分类号： H04B7/08

CPC分类号： G01S19/33

摘要： There is provided a dual band receiver receiving frequency signals in different bands, the receiver including: a first down converter converting a first band signal into a first intermediate frequency signal; a second down converter converting a second band signal into a second intermediate frequency signal; a first voltage control oscillator supplying a first oscillation frequency to the first down converter; a second voltage control oscillator supplying a second oscillation frequency to the second down converter; a first filter passing the first intermediate frequency signal within a desired bandwidth; a second filter passing the second intermediate frequency signal within a desired bandwidth; and a clock generator converting the first oscillation frequency of the first voltage control oscillator into sampling frequencies corresponding to integer multiples of first and second oscillation frequencies and supplying the sampling frequencies to first and second AD converters, respectively.

摘要翻译： 提供接收不同频带的频率信号的双频带接收机，该接收机包括：第一下变换器，将第一频带信号转换为第一中频信号; 将第二频带信号转换成第二中频信号的第二降压转换器; 向第一下变频器提供第一振荡频率的第一压控振荡器; 向第二下变频器提供第二振荡频率的第二压控振荡器; 第一滤波器，在所需带宽内通过所述第一中频信号; 第二滤波器，将第二中频信号通过期望的带宽; 以及时钟发生器，将第一压控振荡器的第一振荡频率转换成与第一和第二振荡频率的整数倍相对应的采样频率，并将采样频率分别提供给第一和第二AD转换器。

公开(公告)号：US09281704B2

公开(公告)日：2016-03-08

申请号：US13959043

申请日：2013-08-05

申请人： Dong-Hun Heo ,  Sang-Hyun Cho ,  Hyung-Jong Ko

发明人： Dong-Hun Heo ,  Sang-Hyun Cho ,  Hyung-Jong Ko

IPC分类号： G06F1/32 ,  H02J7/00 ,  G06F1/26

CPC分类号： H02J7/0068 ,  G06F1/26 ,  H02J7/0063 ,  H02J2007/0067

摘要： A method of controlling a load current is provided. By the method, a battery voltage control operation is begun when a battery voltage becomes lower than a first threshold value, whether a gradient of the battery voltage is a positive gradient or a negative gradient is determined at an interval of a reference or, alternatively, predetermined control time, the load current is controlled based on the gradient of the battery voltage at an interval of the reference or, alternatively, predetermined control time, and the battery voltage control operation is finished when the battery voltage becomes higher than a second threshold value.

摘要翻译： 提供了一种控制负载电流的方法。 通过该方法，当电池电压变得低于第一阈值时，开始电池电压控制操作，电池电压的梯度是正梯度还是以参考的间隔确定负梯度，或者， 预定的控制时间，基于参考电压的间隔的电池电压的梯度来控制负载电流，或者替代地，预定的控制时间，并且当电池电压变得高于第二阈值时，电池电压控制操作结束 。