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    • 1. 发明申请
    • LINC power transmitter
    • LINC电源变送器
    • US20070149151A1
    • 2007-06-28
    • US11707049
    • 2007-02-16
    • Bumman KimYoungoo YangYoung WooJae YiSeung Kim
    • Bumman KimYoungoo YangYoung WooJae YiSeung Kim
    • H04B1/04H01Q11/12
    • H03F3/24H03F1/0205H03F1/0294H03F2200/15H03F2200/18H03F2200/336H03F2200/451H04B1/0483
    • A linear amplification with nonlinear components (LINC) power transmitter is provided. The LINC power transmitter includes a digital signal processing unit which controls the LINC power transmitter; a frequency modulation unit which modulates or converts a digital signal output from the digital signal processing unit into a radio-frequency (RF) signal; a signal amplification unit which amplifies the RF signal output from the frequency modulation unit using a gain amplifier and a power amplification module; and a direct current/direct current (DC/DC) conversion unit which controls bias of the power amplification module. Here, the DC/DC conversion unit controls a base bias and/or a collect bias of the power amplification module, and the power amplification module operates in saturation.
    • 提供了具有非线性元件(LINC)功率发射器的线性放大器。 LINC功率发射器包括一个控制LINC功率发射器的数字信号处理单元; 频率调制单元,其将从数字信号处理单元输出的数字信号调制或转换为射频(RF)信号; 信号放大单元,其使用增益放大器和功率放大模块来放大从所述频率调制单元输出的RF信号; 以及控制功率放大模块的偏置的直流/直流(DC / DC)转换单元。 这里,DC / DC转换单元控制功率放大模块的基极偏置和/或集电偏压,功率放大模块工作在饱和状态。
    • 4. 发明申请
    • Contents providing system and method for preventing improper contents purging and method for managing contents
    • 内容提供用于防止不正当内容清除的系统和方法以及管理内容的方法
    • US20070136314A1
    • 2007-06-14
    • US11633829
    • 2006-12-05
    • Seung BaeJin KimYoung WooMyung Kim
    • Seung BaeJin KimYoung WooMyung Kim
    • G06F17/30
    • H04L67/16H04L67/1095H04L67/327
    • Provided is a contents providing system. The system includes a storing unit, a plurality of server nodes, a dispatcher node, and a storing/deleting management node. The storing unit stores synchronization data according to a service state of each contents data that can be provided. The plurality of server nodes change synchronization data of contents, and provides the contents service in response to a contents service request input via a network. The dispatcher node checks a service state of contents to select a server node that is to provide the corresponding contents service, and changes synchronization data to transmit address data of the selected server node and a corresponding contents file data to a client that has requested the contents service. The storing/deleting management node manages storing and deleting of contents data stored in a contents storing unit with reference to the synchronization data stored in the storing unit.
    • 提供内容提供系统。 该系统包括存储单元,多个服务器节点,调度器节点和存储/删除管理节点。 存储单元根据可以提供的每个内容数据的服务状态来存储同步数据。 多个服务器节点改变内容的同步数据,并响应于经由网络输入的内容服务请求提供内容服务。 调度节点检查内容的服务状态,选择要提供相应的内容服务的服务器节点,并改变同步数据,将选定的服务器节点的地址数据和相应的内容文件数据发送给请求内容的客户端 服务。 存储/删除管理节点参照存储在存储单元中的同步数据来管理存储在内容存储单元中的内容数据的存储和删除。
    • 6. 发明申请
    • Submerged hollow fiber membrane module
    • 浸没式中空纤维膜组件
    • US20070125697A1
    • 2007-06-07
    • US10579194
    • 2004-02-05
    • Moo-Seok LeeKwang LeeYong Cheol ShinSeong ChoiYoung Woo
    • Moo-Seok LeeKwang LeeYong Cheol ShinSeong ChoiYoung Woo
    • B01D65/02
    • B01D69/04B01D63/02B01D63/027B01D65/08B01D2315/06B01D2321/185B01D2321/2058C02F1/44C02F1/444
    • The present invention discloses a submerged hollow fiber membrane module which is of such a structure that it is easy to expand a module processing capability according to a treatment capacity, provides convenient module coupling properties and module manufacturing properties, maintains a stable flux under an efficient air diffusion condition and prevents the damage of membranes and water leakage caused by the loosening of module connecting regions. The submerged hollow fiber membrane module comprises [I] two module headers (2 and 2′) having a filtrate water collecting portion (3) for collecting filtrate water filtered through hollow fiber membranes and a filtrate water outlet (7), [II] an air diffusion unit 8 consisting of support tubes (9 and 9′) fixing the two module headers (2 and 2′) while keeping them spaced a predetermined distance and air diffusion tubes (11 and 11′) having air diffusion holes (13), and [III] a bundle of hollow fiber membranes (1) having both opposite ends fixed to the insides of the module headers (2 and 2′) by an adhesive (6) so as to form a water collecting space within the module headers (2 and 2′), the ends (5) of the hollow portions of the hollow fiber (20) membranes being opened and disposed in parallel to a filtrate water discharge surface (4).
    • 本发明公开了一种浸没式中空纤维膜组件,其具有根据处理能力容易扩展模块加工能力的结构,提供了方便的模块耦合性能和模块制造性能,在有效空气下保持稳定的焊剂 扩散条件,防止模块连接区域松动引起的膜损伤和漏水。 浸没式中空纤维膜组件包括[I]两个具有滤液收集部分(3)的模块集管(2和2'),用于收集通过中空纤维膜过滤的滤液和滤液水出口(7),[II] 空气扩散单元8,其由支撑管(9和9')组成,固定两个模块集管(2和2'),同时保持它们间隔预定距离,并具有空气扩散孔(13)的空气扩散管(11和11'), 和[III]一束中空纤维膜(1),其两个相对端通过粘合剂(6)固定到模块集管(2和2')的内部,以便在模块集管内形成集水空间( 2和2'),中空纤维(20)膜的中空部分的端部(5)与滤液排水表面(4)平行地打开和设置。