公开(公告)号：US07825057B2

公开(公告)日：2010-11-02

申请号：US11985810

申请日：2007-11-16

Applicant: Nak Hyun Kwon ,  Yung Eun Sung ,  In Su Park ,  Yong Hun Cho ,  In Chul Hwang ,  Il Hee Cho

Inventor： Nak Hyun Kwon ,  Yung Eun Sung ,  In Su Park ,  Yong Hun Cho ,  In Chul Hwang ,  Il Hee Cho

IPC: B01J23/40 ,  B01J23/74 ,  B01J23/00 ,  B01J23/42 ,  B01J23/44 ,  C22C5/04 ,  C22C30/00 ,  H01M4/88 ,  H01M4/00

CPC classification number: H01M4/921 ,  H01M4/926 ,  H01M2008/1095

Abstract: The present invention relates to a process for preparing electrode catalyst materials for a polymer electrolyte membrane fuel cell (PEMFC), and particularly to a high-performance platinum-non-platinum mixed electrode catalyst (Pt—RuOs/C) having a physically mixed structure of RuOs alloy and platinum materials, which is prepared by adding a small amount of platinum (Pt) to RuOs alloy materials highly dispersed on a carbon support, where the amount of platinum used is drastically reduced as compared to the conventional platinum materials, thus lowering the manufacturing cost.

Abstract translation: 本发明涉及一种制备聚合物电解质膜燃料电池（PEMFC）的电极催化剂材料的方法，特别涉及具有物理混合结构的高性能铂 - 非铂混合电极催化剂（Pt-RuO / C） 的RuO合金和铂材料，其通过向高度分散在碳载体上的RuO合金材料添加少量铂（Pt）而制备，其中与常规铂材料相比，所使用的铂的量显着降低，因此降低 制造成本。

公开(公告)号：US07783367B2

公开(公告)日：2010-08-24

申请号：US11938328

申请日：2007-11-12

Applicant: In-chul Hwang ,  Eun Namgung

Inventor： In-chul Hwang ,  Eun Namgung

IPC: G05B11/01 ,  G05B19/42 ,  G06F3/00

CPC classification number: G08C17/00 ,  G08C2201/33 ,  H04N5/4403 ,  H04N21/42204 ,  H04N21/42226 ,  H04N21/4312 ,  H04N21/436 ,  H04N21/43615 ,  H04N2005/4435

Abstract: Disclosed is provided an apparatus and a method for operating a macro command and inputting a macro command, wherein the apparatus including a storing unit storing control signals received from a control device for selecting of a menu item of a host device, a creating unit creating the macro command combined with the control signals, and an executing unit reading the macro command and executing functions corresponding to the respective menu item of the host device according to a combination sequence of the control signals included in the read macro command.

Abstract translation: 本发明提供了一种用于操作宏命令和输入宏命令的装置和方法，其中，该装置包括：存储单元，存储从控制装置接收的用于选择主机设备的菜单项的控制信号;创建单元， 宏指令与控制信号组合，以及执行单元，根据包含在读取宏命令中的控制信号的组合序列，读取宏命令并执行与主机设备的相应菜单项相对应的功能。

公开(公告)号：US20090097827A1

公开(公告)日：2009-04-16

申请号：US12177903

申请日：2008-07-23

Applicant: Sung-jin PARK ,  Kwang-kee LEE ,  Eun-hee RHIM ,  In-chul HWANG ,  Glenn A. ADAMS

Inventor： Sung-jin PARK ,  Kwang-kee LEE ,  Eun-hee RHIM ,  In-chul HWANG ,  Glenn A. ADAMS

IPC: H04N7/26

CPC classification number: G11B19/02 ,  H04N5/76 ,  H04N5/783

Abstract: A method of controlling a content recording device, by generating control commands in a uniform resource identifier (URI) format and controlling the content recording device according to the generated control command(s), is provided.

Abstract translation: 提供一种通过以统一的资源标识符（URI）格式产生控制命令并根据生成的控制命令控制内容记录装置来控制内容记录装置的方法。

公开(公告)号：US07436240B2

公开(公告)日：2008-10-14

申请号：US11506034

申请日：2006-08-17

Applicant: Young-Jin Kim ,  In-Chul Hwang ,  Han-Il Lee ,  Jae-Heon Lee

Inventor： Young-Jin Kim ,  In-Chul Hwang ,  Han-Il Lee ,  Jae-Heon Lee

IPC: G05F1/10

CPC classification number: H03H11/483

Abstract: A capacitance multiplier includes a self-biasing active load for generating a stable bias voltage without a separate current bias. In addition, the capacitance multiplier includes a cascode load within a multiplying section for increasing the output resistance and in turn the charging/discharging efficiency. Furthermore, the capacitance multiplier is implemented with a plurality of multiplying paths to reduce effects of noise for more stable generation of the multiplied capacitance.

Abstract translation: 电容倍增器包括用于在没有单独的电流偏置的情况下产生稳定的偏置电压的自偏置有源负载。 此外，电容倍增器包括用于增加输出电阻以及再次充电/放电效率的乘法部分内的共源共栅负载。 此外，电容乘法器用多个乘法路径实现，以减少噪声的影响，以便更多地稳定地产生倍增的电容。

公开(公告)号：US07224750B2

公开(公告)日：2007-05-29

申请号：US10461264

申请日：2003-06-13

Applicant: Jae-wan Kim ,  In-chul Hwang ,  Hae-moon Seo ,  Young-jin Kim

Inventor： Jae-wan Kim ,  In-chul Hwang ,  Hae-moon Seo ,  Young-jin Kim

IPC: H03K9/00

CPC classification number: H03D7/163

Abstract: An apparatus and method for receiving RF signals in a RF communication system are provided. The apparatus for receiving RF signals comprises a pre-processing unit for bandpass-filtering a signal received through an external antenna with a predetermined bandwidth and extracting a RF input signal having a desired frequency; a mixing unit for mixing the RF input signal provided from the pre-processing unit with a local oscillation signal having the same frequency as the RF input signal and generating a desired baseband signal; a noise-free-signal amplifying unit for shifting the desired baseband signal to a band that is free of effects due to 1/f noise, amplifying the shifted baseband signal, and re-shifting the amplified signal to the baseband; and a baseband processing unit for selecting a desired channel signal from the amplified baseband signal to be provided from the noise-free-signal amplifying unit and amplifying the selected signal.

Abstract translation: 提供了一种用于在RF通信系统中接收RF信号的装置和方法。 用于接收RF信号的装置包括预处理单元，用于对具有预定带宽的外部天线接收的信号进行带通滤波，并提取具有期望频率的RF输入信号; 混合单元，用于将从预处理单元提供的RF输入信号与具有与RF输入信号相同频率的本地振荡信号混合并产生期望的基带信号; 无噪声信号放大单元，用于将期望的基带信号移位到由于1 / f噪声而无效的频带，放大经移位的基带信号，并将放大的信号重新移位到基带; 以及基带处理单元，用于从要由无噪声信号放大单元提供的放大基带信号中选择期望的信道信号，并放大所选择的信号。

公开(公告)号：US07181181B2

公开(公告)日：2007-02-20

申请号：US10967386

申请日：2004-10-18

Applicant: Han-ll Lee ,  In-chul Hwang

Inventor： Han-ll Lee ,  In-chul Hwang

IPC: H04B1/06 ,  H04B7/00

CPC classification number: H03L7/23 ,  H03L7/16 ,  H03L7/1974 ,  H04B1/406

Abstract: A local oscillation signal generator and a multi-band transceiver including the local oscillation signal generator are provided. The multi-band transceiver includes a fractional-N phased locked loop (PLL), a local oscillation signal generator, and a transmitter. The fractional-N PLL receives a reference signal and outputs an oscillation signal that is phase-locked to the reference signal. The local oscillation signal generator receives the oscillation signal and outputs a first divided signal that is obtained by dividing a frequency of the oscillation signal by a first value and a second divided signal that is obtained by dividing the frequency of the oscillation signal by a second value. The transmitter receives input signals and generates a transmitter signal using an equation f TX = ( 2 3 ⁢ k - 1 M ) ⁢ f VCO , based on the first divided signal and the second divided signal.

Abstract translation: 提供本地振荡信号发生器和包括本地振荡信号发生器的多频带收发器。 多频带收发器包括分数N相位锁相环（PLL），本地振荡信号发生器和发射机。 分数N PLL接收参考信号，并将相位锁定的振荡信号输出到参考信号。 本地振荡信号发生器接收振荡信号，并输出通过将振荡信号的频率除以第一值而获得的第一分频信号和通过将振荡信号的频率除以第二值获得的第二分频信号 。 发射机接收输入信号并使用公式生成发射机信号