가변 암호화 기반의 네트워크 보안 장치 및 그 동작 방법
    3.
    发明授权
    가변 암호화 기반의 네트워크 보안 장치 및 그 동작 방법 有权
    基于可变加密的网络安全设备及其操作方法

    公开(公告)号:KR101594846B1

    公开(公告)日:2016-02-22

    申请号:KR1020140172073

    申请日:2014-12-03

    CPC classification number: H04L9/12 Y02D50/30

    Abstract: 가변암호화기반의네트워크보안장치및 그동작방법이개시된다. 본발명의일실시예에따른가변암호화기반의네트워크보안장치및 그동작방법은특정주기간격으로, 소정의암호화방식정보를구성하고, 해당암호화방식정보들간의보안수준에따라서, 가장높은보안수준을갖는암호화방식정보를네트워크로연결되어있는복수의단말들의데이터송수신에사용될암호화방식후보로선택해둔 후상기복수의단말들사이에서데이터송수신시에데이터암복호화실패와같은보안상문제가발생하는경우, 상기복수의단말들이현재사용하고있는암호화방식을상기암호화방식후보로선택된암호화방식으로변경해줌으로써, 네트워크의보안을강화시킬수 있다.

    Abstract translation: 本发明涉及一种基于可变加密的网络安全装置及其操作方法。 网络安全设备以间隔周期配置预定的加密方法信息,选择具有最高安全级别的加密方法信息作为用于在连接到网络的多个终端之间发送和接收数据的加密方法候选,根据安全级别 并且当在终端之间发送和接收数据时发生诸如数据加密和解密失败之类的安全问题时,将终端当前使用的加密方法改变为选择为加密方法候选的加密方法。 因此,网络安全设备可以增强网络的安全性。

    프로덕트 부호의 복호 방법 및 장치
    4.
    发明授权
    프로덕트 부호의 복호 방법 및 장치 有权
    用于解码产品代码的方法和装置

    公开(公告)号:KR101216735B1

    公开(公告)日:2012-12-28

    申请号:KR1020100086494

    申请日:2010-09-03

    CPC classification number: H03M13/2909 H03M13/1102 H03M13/19 H03M13/2927

    Abstract: 복호장치가프로덕트부호의부호어행렬을복호하는방법이제공된다. 프로덕트부호의부호어행렬을복호하는방법은수직부호에대한제1 확장패리티체크행렬을생성하는단계, 상기부호어행렬내의복수의행의수평부호어를각각제1 복호하는단계, 상기제1 복호에성공한수평부호어의행에해당하는열을상기제1 확장패리티체크행렬로부터제거하여제2 확장패리티체크행렬을생성하는단계, 그리고상기제2 확장패리티체크행렬을이용하여상기제1 복호에실패한수평부호어를제2 복호하는단계를포함한다. 이에따라, 간단하고신뢰도높은프로덕트부호의복호방법이제공될수 있다.

    부가적 맵핑 시퀀스를 이용한 직교 주파수 분할 다중화 시스템의 최대전력 대 평균전력 비 감소 방법 및 이를 위한 장치
    5.
    发明公开

    公开(公告)号:KR1020120121733A

    公开(公告)日:2012-11-06

    申请号:KR1020110039702

    申请日:2011-04-27

    CPC classification number: H04L27/2614 H04L27/2628

    Abstract: PURPOSE: A method and apparatus for reducing a peak to average power ratio in an orthogonal frequency division multiplexing system using additional mapping sequences are provided to generate an alternative signal sequence by performs IFFT(inverse fast Fourier transform) of sub blocks and an additional mapping symbol sub block and then linearly coupling the sub blocks and the additional mapping symbol sub block in a time domain. CONSTITUTION: A sub block partition part(410) partitions an OFDM symbol sequence into two or more sub blocks. An additional mapping symbol sub block generating part(420) generates additional mapping symbol sub blocks which corresponds to each sub block. An IFFTpart(430) performs IFFT of sub blocks and the additional mapping symbol sub blocks. An alternative signal sequence generation part(440) generates alternative signal sequences using signal subsequences and additional mapping signal subsequences. A minimum PAPR(peak to average power ratio) selecting part(450) selects the alternative signal sequence corresponding to minimum PAPR.

    Abstract translation: 目的:提供一种在使用附加映射序列的正交频分复用系统中降低峰值与平均功率比的方法和装置,以通过执行子块的IFFT(快速傅里叶逆变换)和附加映射符号来产生替代信号序列 然后在时域中对子块和附加映射符号子块进行线性耦合。 构成:子块分割部分(410)将OFDM符号序列划分成两个或更多个子块。 附加的映射符号子块生成部分(420)生成对应于每个子块的附加映射符号子块。 IFFT部分(430)执行子块和附加映射符号子块的IFFT。 替代信号序列生成部分(440)使用信号子序列和附加映射信号子序列来生成备选信号序列。 最小PAPR(峰值与平均功率比)选择部分(450)选择对应于最小PAPR的替代信号序列。

    프로덕트 부호의 복호 방법 및 장치
    6.
    发明公开
    프로덕트 부호의 복호 방법 및 장치 有权
    用于解码产品代码的方法和装置

    公开(公告)号:KR1020120023403A

    公开(公告)日:2012-03-13

    申请号:KR1020100086494

    申请日:2010-09-03

    CPC classification number: H03M13/2909 H03M13/1102 H03M13/19 H03M13/2927

    Abstract: PURPOSE: A decoding method of a product code and an apparatus thereof are provided to make decoding result of very low error rate by reducing the complexity of calculation during a process of decoding the codeword matrix of the product code. CONSTITUTION: A decoding device selects soft-decision information of a horizontal code word as one soft-decision information about a decoding-failed horizontal code word. The soft-decision information is already calculated from the channel receiving information. The decoding device extracts another soft-decision information about horizontal code words using hard decision information of horizontal code words which are successfully decoded and the soft-decision information of other horizontal code words which are decoding-failed. The decoding device re-decodes the horizontal code words by adding two soft-decision information on the horizontal code words. The decoding device eliminates the matrix corresponding to the decoding success from a second expansion parity check matrix.

    Abstract translation: 目的:提供一种产品代码的解码方法及其装置,通过在对产品代码的码字矩阵进行解码的过程中降低计算的复杂度来使得错误率非常低的解码结果。 构成:解码装置选择水平码字的软判决信息作为解码失败的水平码字的一个软决策信息。 已经从信道接收信息计算出软判决信息。 解码装置使用成功解码的水平码字的硬判决信息和解码失败的其他水平码字的软判决信息,提取关于水平码字的另一软判决信息。 解码装置通过在水平码字上添加两个软判决信息来重新解码水平码字。 解码装置从第二扩展奇偶校验矩阵中消除与解码成功相对应的矩阵。

    OFDM 시스템에서 PAPR을 감소시키기 위한 장치 및 그 방법
    7.
    发明授权
    OFDM 시스템에서 PAPR을 감소시키기 위한 장치 및 그 방법 有权
    用于减少OFDM系统中的PAPR的装置及其方法

    公开(公告)号:KR101060548B1

    公开(公告)日:2011-08-31

    申请号:KR1020100047552

    申请日:2010-05-20

    CPC classification number: H04L27/2614 H04L27/2628

    Abstract: PURPOSE: An apparatus for reducing a Peak-to-Average Power Ratio in an Orthogonal Frequency Division Multiplexing system and a method thereof are provided to create a plurality of candidate signals which has the different PAPR by applying circular shift to signals of an intermediate phase in an Inverse Fast Fourier Transform shift. CONSTITUTION: An input symbol sequence is inputted. The inputted input symbol sequence is processed to a (n-i) stage of an IFFT part(340). An intermediate OFDM signal sequence is created. The intermediate OFDM signal sequence is transmitted to IFFT blocks(341,342) of the different U. The intermediate OFDM signal sequence is rotationally transported by different movement values which is pre-set at each the IFFT block. The intermediate OFDM signal sequence is processed the IFFT to a rest n stage. A plurality of OFDM signal sequences with different PAPRs is created.

    Abstract translation: 目的:提供一种用于降低正交频分复用系统中的峰均功率比的装置及其方法,用于通过向中间相的信号施加循环移位来创建具有不同PAPR的多个候选信号 快速傅里叶逆变换。 构成:输入符号序列。 输入的输入符号序列被处理为IFFT部分(340)的(n-i)级。 创建中间OFDM信号序列。 中间OFDM信号序列被发送到不同U的IFFT块(341,342)。中间OFDM信号序列由在每个IFFT块预置的不同移动值被旋转地传输。 中间OFDM信号序列被处理为休眠n阶段的IFFT。 创建具有不同PAPR的多个OFDM信号序列。

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