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    POLYMERIC MEA FOR FUEL CELL
    63.
    发明申请
    POLYMERIC MEA FOR FUEL CELL 审中-公开
    用于燃料电池的聚合物MEA

    公开(公告)号：US20090278073A1

    公开(公告)日：2009-11-12

    申请号：US12272964

    申请日：2008-11-18

    Applicant: Ki Yun Cho ,  In Chul Hwang ,  Dong Il Kim ,  Ju Ho Lee

    Inventor： Ki Yun Cho ,  In Chul Hwang ,  Dong Il Kim ,  Ju Ho Lee

    IPC: H01G9/028

    CPC classification number: C08G75/23 ,  C08G65/4012 ,  C08G65/4056 ,  C08J5/2256 ,  C08J2381/06 ,  C08L2205/05 ,  H01M8/1011 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1039 ,  H01M2300/0082 ,  Y02E60/523

    Abstract: A polymeric electrolyte membrane for a polymer electrolyte membrane fuel cell comprises: (a) a sulfonated polysulfoneketone copolymer comprising an aromatic sulfone repeating unit, an aromatic ketone repeating unit and an aromatic compound repeating unit which connects said repeating units with an ether linkage, wherein the aromatic sulfone repeating unit, the aromatic ketone repeating unit or both have a sulfonic acid or sulfonate substituent; and (b) one or more polymers each comprising a monomer selected from the group consisting of vinylidene fluoride, hexafluoropropylene, trifluoroethylene and tetrafluoroethylene.

    Abstract translation: 一种用于聚合物电解质膜燃料电池的聚合物电解质膜包括：（a）包含芳族砜重复单元，芳族酮重复单元和将所述重复单元与醚键连接的芳族化合物重复单元的磺化聚砜酮共聚物，其中 芳香族砜重复单元，芳族酮重复单元或两者具有磺酸或磺酸盐取代基; 和（b）一种或多种各自包含选自偏二氟乙烯，六氟丙烯，三氟乙烯和四氟乙烯的单体的聚合物。

    APPARATUS AND METHOD OF MANAGING DATA
    67.
    发明申请
    APPARATUS AND METHOD OF MANAGING DATA 审中-公开
    装置和数据管理方法

    公开(公告)号：US20080229252A1

    公开(公告)日：2008-09-18

    申请号：US11846891

    申请日：2007-08-29

    Applicant: In-chul Hwang

    Inventor： In-chul Hwang

    IPC: G06F3/048

    CPC classification number: G06F16/958

    Abstract: Provided are an apparatus and method of managing data that is capable of receiving and storing in advance, when constructing a menu screen using data received through a network, data from a convertible menu screen on the basis of a currently displayed menu screen and constructing the menu screen using the data stored at the time of selecting the corresponding menu screen. The apparatus includes a control unit which confirms that a first page being displayed can be converted into a second page based on the first page, a data searching unit which determines whether data of the second page is stored, and a transceiver which the data if it is determined that the data is not stored.

    Abstract translation: 提供了一种管理数据的装置和方法，其能够基于当前显示的菜单屏幕，在基于当前显示的菜单屏幕的基础上构建使用通过网络接收的数据的数据构建菜单屏幕，可转换菜单屏幕的数据，并且构建菜单 屏幕使用在选择相应菜单画面时存储的数据。 该装置包括：控制单元，其确认正在显示的第一页面可以基于第一页被转换成第二页面;数据搜索单元，确定是否存储第二页面的数据;以及收发器，数据如果是 确定数据未被存储。

    Circuit and method for receiving and mixing radio frequencies in a direct conversion receiver
    68.
    发明授权
    Circuit and method for receiving and mixing radio frequencies in a direct conversion receiver 失效
    在直接转换接收机中接收和混合射频的电路和方法

    公开(公告)号：US07120414B2

    公开(公告)日：2006-10-10

    申请号：US10816165

    申请日：2004-04-01

    Applicant: Young-Jin Kim ,  In-Chul Hwang

    Inventor： Young-Jin Kim ,  In-Chul Hwang

    IPC: H04B1/26 ,  G01V3/02

    CPC classification number: H03D7/165 ,  H03D7/1433 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1475 ,  H03D7/1491 ,  H03D2200/0043 ,  H03D2200/0047 ,  H03D2200/009 ,  H04B1/30

    Abstract: A frequency mixing circuit and a frequency mixing method. The frequency mixing circuit includes first and second differential amplifiers, a subtracter and a mixer. The first differential amplifier amplifies a first pair of input signals having a first frequency to generate a first differential signal. The second differential amplifier amplifies a second pair of input signals having the first frequency orthogonal to the first pair input signals to generate a second differential signal. The subtracter subtracts the second differential signal from the first differential signal. The mixer mixes the subtracted signal with a first and second pairs of drive signals having a second frequency orthogonal to each other, in a sub-harmonic double balanced mixing mode, so that the mixer generates a pair of output signals orthogonal to each other without secondary harmonics.

    Abstract translation: 一种混频电路和一种混频方法。 该混频电路包括第一和第二差分放大器，减法器和混频器。 第一差分放大器放大具有第一频率的第一对输入信号以产生第一差分信号。 第二差分放大器放大具有与第一对输入信号正交的第一频率的第二对输入信号，以产生第二差分信号。 减法器从第一差分信号中减去第二差分信号。 混频器将减法信号与亚谐波双平衡混合模式中的具有第二频率彼此正交的第一和第二对驱动信号进行混合，使得混频器产生彼此正交的一对输出信号，而没有次级 谐波。

    Frequency synthesizer using a wide-band voltage controlled oscillator and a fast adaptive frequency calibration method
    69.
    发明申请
    Frequency synthesizer using a wide-band voltage controlled oscillator and a fast adaptive frequency calibration method 有权
    使用宽带压控振荡器的频率合成器和快速自适应频率校准方法

    公开(公告)号：US20050083137A1

    公开(公告)日：2005-04-21

    申请号：US10942119

    申请日：2004-09-15

    Applicant: Han-il Lee ,  In-chul Hwang

    Inventor： Han-il Lee ,  In-chul Hwang

    IPC: H03L7/16 ,  H03L7/00 ,  H03L7/085 ,  H03L7/087 ,  H03L7/099 ,  H03L7/10 ,  H03L7/18

    CPC classification number: H03L7/113 ,  H03L7/085 ,  H03L7/087 ,  H03L7/099 ,  H03L7/18

    Abstract: A frequency synthesizer is provided. The frequency synthesizer includes an adaptive frequency calibration circuit and a phase locked loop (PLL). The frequency synthesizer performs in a frequency lock mode and in a phase lock mode. In the frequency lock mode, the adaptive frequency calibration circuit compares the frequency of an input signal with the frequency of an output signal of a voltage controlled oscillator of the PLL and outputs control bits as a result of the comparison. The voltage controlled oscillator has a plurality of operating characteristic curves and selects a curve from among the plurality of operating characteristic curves in response to the control bits. In the phase lock mode, the PLL controls an output phase of the voltage controlled oscillator based on a tuning voltage from the selected operating characteristic curve.

    Abstract translation: 提供频率合成器。 频率合成器包括自适应频率校准电路和锁相环（PLL）。 频率合成器在频率锁定模式和相位锁定模式下执行。 在频率锁定模式中，自适应频率校准电路将输入信号的频率与PLL的压控振荡器的输出信号的频率进行比较，并作为比较结果输出控制位。 压控振荡器具有多个工作特性曲线，并响应于控制位选择多个操作特性曲线中的曲线。 在锁相模式下，PLL根据所选工作特性曲线的调谐电压控制压控振荡器的输出相位。

    Method and apparatus for transmitting and receiving broadcasting information using reserved channels
    70.
    发明授权
    Method and apparatus for transmitting and receiving broadcasting information using reserved channels 有权
    使用保留信道发送和接收广播信息的方法和装置

    公开(公告)号：US09479738B2

    公开(公告)日：2016-10-25

    申请号：US11938410

    申请日：2007-11-12

    Applicant: In-chul Hwang

    Inventor： In-chul Hwang

    IPC: G06F3/00 ,  G06F13/00 ,  H04N5/445 ,  H04N7/173 ,  H04N21/262 ,  H04N21/458

    CPC classification number: H04N7/17318 ,  H04N21/26283 ,  H04N21/26291 ,  H04N21/4586

    Abstract: Disclosed are a method and apparatus for transmitting and receiving broadcasting information. A method of receiving broadcasting information using reserved channels according to an aspect of the present invention includes receiving information of a program schedule that includes a dynamic program having a flexible broadcasting schedule, searching one or more reserved channels that receive broadcasting signals according to a new program schedule changed due to the dynamic program, and receiving the broadcasting signals through the one or more searched reserved channels.

    Abstract translation: 公开了一种用于发送和接收广播信息的方法和装置。 根据本发明的一个方面的使用保留信道接收广播信息的方法包括接收包括具有灵活广播时间表的动态节目的节目表的信息，根据新节目搜索接收广播信号的一个或多个保留信道 时间表由于动态程序而改变，并且通过一个或多个搜索到的预留信道接收广播信号。

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