Virtual multi-antenna method for OFDM system and OFDM-based cellular system
    1.
    发明授权
    Virtual multi-antenna method for OFDM system and OFDM-based cellular system 失效
    用于OFDM系统和基于OFDM的蜂窝系统的虚拟多天线方法

    公开(公告)号:US07848218B2

    公开(公告)日:2010-12-07

    申请号:US12064206

    申请日:2006-08-18

    IPC分类号: H04J11/00

    摘要: Provided are a virtual multi-antenna method for an orthogonal frequency division multiplexing (OFDM) system and an OFDM-based cellular system. The virtual multi-antenna method includes grouping sub-carriers in a frequency domain of an OFDM symbol and generating at least one group including G sub-carriers; and regarding the G sub-carriers included in the at least one group as multiple channels used in a multi-antenna technique and virtually applying the multi-antenna technique to the transmission and reception of the OFDM symbol. The virtual multi-antenna method can effectively reduce an interference signal and obtain the effects of a spatial division multiple access (SDMA) technique without physically using multiple antennas.

    摘要翻译: 提供了一种用于正交频分复用(OFDM)系统和基于OFDM的蜂窝系统的虚拟多天线方法。 虚拟多天线方法包括在OFDM符号的频域中分组子载波并且生成包括G个子载波的至少一个组; 并且将包括在至少一个组中的G个子载波作为在多天线技术中使用的多个信道,并将多天线技术虚拟地应用于OFDM符号的发送和接收。 虚拟多天线方法可以有效地减少干扰信号并获得空分多址(SDMA)技术的效果,而无需物理上使用多个天线。

    VIRTUAL MULTI-ANTENNA METHOD FOR OFDM SYSTEM AND OFDM-BASED CELLULAR SYSTEM
    2.
    发明申请
    VIRTUAL MULTI-ANTENNA METHOD FOR OFDM SYSTEM AND OFDM-BASED CELLULAR SYSTEM 失效
    用于OFDM系统和基于OFDM的蜂窝系统的虚拟多天线方法

    公开(公告)号:US20090010149A1

    公开(公告)日:2009-01-08

    申请号:US12064206

    申请日:2006-08-18

    IPC分类号: H04J11/00

    摘要: Provided are a virtual multi-antenna method for an orthogonal frequency division multiplexing (OFDM) system and an OFDM-based cellular system. The virtual multi-antenna method includes grouping sub-carriers in a frequency domain of an OFDM symbol and generating at least one group including G sub-carriers; and regarding the G sub-carriers included in the at least one group as multiple channels used in a multi-antenna technique and virtually applying the multi-antenna technique to the transmission and reception of the OFDM symbol. The virtual multi-antenna method can effectively reduce an interference signal and obtain the effects of a spatial division multiple access (SDMA) technique without physically using multiple antennas.

    摘要翻译: 提供了一种用于正交频分复用(OFDM)系统和基于OFDM的蜂窝系统的虚拟多天线方法。 虚拟多天线方法包括在OFDM符号的频域中分组子载波并且生成包括G个子载波的至少一个组; 并且将包括在至少一个组中的G个子载波作为在多天线技术中使用的多个信道,并将多天线技术虚拟地应用于OFDM符号的发送和接收。 虚拟多天线方法可以有效地减少干扰信号并获得空分多址(SDMA)技术的效果,而无需物理上使用多个天线。

    Transmitting and receiving method for reducing distortion caused by a time-varying channel in an orthogonal frequency division multiplex system
    3.
    发明授权
    Transmitting and receiving method for reducing distortion caused by a time-varying channel in an orthogonal frequency division multiplex system 有权
    用于减少由正交频分复用系统中的时变信道引起的失真的发送和接收方法

    公开(公告)号:US07382718B2

    公开(公告)日:2008-06-03

    申请号:US10334354

    申请日:2002-12-31

    摘要: Disclosed is a transmitting and receiving method for reducing a time-varying channel distortion in an orthogonal frequency division multiplex (OFDM) system. In the present invention, the transmitter defines M sub-channels in one data group, mathematically analyzes a change of channel for each path causing a time-varying channel distortion in a high-speed mobile environment by approximation, calculates a weight value based on the mathematical analysis and assigns the calculated weight value to transmit data of each sub-channel. Subsequently, the receiver combines the signals of these M sub-channels and demodulates the combined signals. Accordingly, the present invention greatly reduces a distortion caused by the time-varying channel to improve a bit error rate and a channel estimation performance.

    摘要翻译: 公开了一种用于减少正交频分复用(OFDM)系统中的时变信道失真的发送和接收方法。 在本发明中,发射机在一个数据组中定义M个子信道,通过近似来数学地分析导致高速移动环境中的时变信道失真的每个路径的信道变化,基于 数学分析,并分配计算的权重值以发送每个子频道的数据。 随后,接收机组合这些M个子信道的信号并解调组合的信号。 因此,本发明大大减少了由时变信道引起的失真,以提高误码率和信道估计性能。

    Fuel Cell Including Cathode Electrode Using Iron Redox Couple
    5.
    发明申请
    Fuel Cell Including Cathode Electrode Using Iron Redox Couple 有权
    使用铁氧化还原电极的包括阴极电极的燃料电池

    公开(公告)号:US20130157155A1

    公开(公告)日:2013-06-20

    申请号:US13817520

    申请日:2011-08-12

    IPC分类号: H01M8/20

    摘要: Provided is a fuel cell including an anode electrode, a cathode electrode, and an electrolyte/ion exchange membrane between the anode electrode and the cathode electrode. The cathode electrode uses an iron redox couple as an oxidizer. The iron redox couple is regenerated by an oxidizing substance. The fuel cell does not need a noble metal catalyst, is thus economical in manufacturing costs, and has high power density, thereby improving energy conversion efficiency. Furthermore, the fuel cell is capable of decomposing an oxidizing substance, such as NOx, Cl2, Br2, or O3.

    摘要翻译: 提供一种在阳极电极和阴极之间包括阳极电极,阴极电极和电解质/离子交换膜的燃料电池。 阴极使用铁氧化还原对作为氧化剂。 铁氧化还原对由氧化物质再生。 燃料电池不需要贵金属催化剂,因此在制造成本方面是经济的,并且具有高功率密度,从而提高能量转换效率。 此外,燃料电池能够分解氧化物质,例如NOx,Cl2,Br2或O3。

    Fusion expression vector containing the His-tagged Vitreoscilla hemoglobin coding gene
    6.
    发明申请
    Fusion expression vector containing the His-tagged Vitreoscilla hemoglobin coding gene 审中-公开
    含有His标记的透明颤菌血红蛋白编码基因的融合表达载体

    公开(公告)号:US20060216698A1

    公开(公告)日:2006-09-28

    申请号:US11265660

    申请日:2005-11-03

    申请人: Kyung-Won Park

    发明人: Kyung-Won Park

    CPC分类号: C07K14/805

    摘要: The present invention relates to method of providing color to aid in the expression and purification of proteins of E. coli. Vector according to the present invention includes the His-tagged Vitreoscilla hemoglobin (VHb) coding gene upstream of the multiple cloning site. The vector was designed to express target proteins as VHb fusions, which can be purified in one step by affinity chromatography. Due to the color of the heme in VHb, the VHb-fused target proteins have a red color that provides a visual aid for estimating their expression level and solubility. The red color can also be used as a visual marker throughout purification, while the concentration of the fusion protein can be determined by measuring the amount of VHb using carbon monoxide difference spectra. In addition, because of inherently high solubility of VHb, the fusion can increase the solubility of sparingly soluble target proteins. Target proteins can be easily separated from His-tagged VHb due to the presence of a thrombin cleavage site between them.

    摘要翻译: 本发明涉及提供颜色以帮助大肠杆菌蛋白质的表达和纯化的方法。 根据本发明的载体包括在多克隆位点上游的His标记的透明颤菌血红蛋白(VHb)编码基因。 该载体设计用于将靶蛋白表达为VHb融合体,其可以通过亲和层析在一个步骤中纯化。 由于VHb中血红素的颜色,VHb融合的靶蛋白具有红色,为估计其表达水平和溶解度提供了视觉辅助。 红色也可用作纯化中的视觉标记,而融合蛋白的浓度可以通过使用一氧化碳差异谱测量VHb的量来确定。 此外,由于VHb的固有的高溶解度,融合可以增加微溶性靶蛋白的溶解度。 靶蛋白可以容易地与His标记的VHb分离,因为它们之间存在凝血酶切割位点。

    Voice mailing system for performing fax mail service and service method
therefor
    8.
    发明授权
    Voice mailing system for performing fax mail service and service method therefor 失效
    用于执行传真邮件服务的语音邮件系统及其服务方法

    公开(公告)号:US5943400A

    公开(公告)日:1999-08-24

    申请号:US685554

    申请日:1996-07-24

    申请人: Kyung-Won Park

    发明人: Kyung-Won Park

    CPC分类号: H04M3/5307 H04N1/324

    摘要: A voice mailing system and a service method for additionally processing fax mail while intactly maintaining the voice mail in order to save memory requirement and simplify the mail management structure. The voice mail system where a corresponding profile box is accessed by a profile number to perform a voice mail service, contains a memory having a plurality of data cells for storing fax data, transactions for storing index of the data cells, a storing date and time, a storing mail format, and page classifying information for each fax mail; and a plurality of mailboxes for storing index information of the fax mail.

    摘要翻译: 一种语音邮件系统和服务方法,用于在完整地维护语音邮件的同时处理传真邮件,以节省内存需求并简化邮件管理结构。 通过配置文件号码访问对应的配置文件框以执行语音邮件服务的语音邮件系统包含具有用于存储传真数据的多个数据单元的存储器,用于存储数据单元的索引的事务,存储日期和时间 ,存储邮件格式和每个传真邮件的页面分类信息; 以及用于存储传真邮件的索引信息的多个邮箱。