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    • 3. 发明授权
    • OFDM 전송 시스템의 계층 변복조 장치 및 방법
    • OFDM电视系统的一个重要组成部分
    • KR100875935B1
    • 2008-12-26
    • KR1020070067185
    • 2007-07-04
    • 한국전자통신연구원부산대학교 산학협력단
    • 임형수김영수최서미임종수김지현김완진김형남
    • H04J11/00
    • A method and an apparatus for hierarchical modulation/demodulation in an OFDM(Orthogonal Frequency Division Multiplexing) system are provided to perform an in-phase demodulation by using a pilot which is transferred to a second layer. A hierarchical modulation apparatus in an OFDM system includes first and second encoders(110,120), a pilot insertion unit(130), and a hierarchical modulation unit(140). The first encoder encodes a first layer signal stream, which is a basic layer signal. The second encoder encodes a second layer signal stream which is an enhancement layer signal. The pilot insertion portion inserts a pilot signal for estimating a channel coefficient to an encoded second layer signal stream. The hierarchical modulation portion modulates the second layer signal stream, to which the pilot signal is inserted, and the encoded first layer signal stream, and combines the encoded signals with each other.
    • 提供了用于OFDM(正交频分复用)系统中的分层调制/解调的方法和装置,以通过使用传送到第二层的导频来执行同相解调。 OFDM系统中的分层调制装置包括第一和第二编码器(110,120),导频插入单元(130)和分层调制单元(140)。 第一编码器对第一层信号流进行编码,该第一层信号流是基本层信号。 第二编码器对作为增强层信号的第二层信号流进行编码。 导频插入部分将用于估计信道系数的导频信号插入编码的第二层信号流。 分层调制部分对导频信号所插入的第二层信号流和编码的第一层信号流进行调制,并将编码信号彼此组合。
    • 4. 发明公开
    • 크기 차동 위상 편이 변조 장치 및 그 방법
    • 差分相位移位键控器和方法
    • KR1020080052085A
    • 2008-06-11
    • KR1020060124121
    • 2006-12-07
    • 한국전자통신연구원부산대학교 산학협력단
    • 임형수김영수최서미임종수권대근김형남
    • H04L27/18H04L12/20
    • H04L27/389H04L5/0007H04L25/0224H04L27/02H04L27/2071H04L27/2075H04L27/3483H04L27/361
    • An apparatus and a method for applying amplitude-differential phase shift keying are provided to maintain compatibility of main transmission data to a pre-differential phase shift keying and to improve a transmitting speed by modulating the main transmission data with a differential phase shift keying manner and modulating additional transmission data with the other differential phase shift keying manner. An apparatus and a method for applying amplitude-differential phase shift keying includes a first modulating unit modulating a first data sequence with a differential phase shift keying manner. A second modulating unit modulates a second data sequence with an amplitude shift and inserts a pilot signal to the amplitude shift modulated signal. A multiplier outputs after multiplying output data of first and second modulating units. The pilot signal is periodically or non-periodically inserted at a position of a sub-carrier of the amplitude shift modulated signal. A first demodulating unit(31) receives an amplitude-differential phase shift keying modulated signal and demodulates the received signal with the differential phase shift keying. A second demodulating unit(324) extracts the pilot signal from the received signal.
    • 提供了一种应用幅度相移键控的装置和方法,以保持主传输数据与预差分相移键控的兼容性,并通过以差分相移键控方式调制主传输数据来提高传输速度, 用其他差分相移键控方式调制附加传输数据。 一种用于施加幅度相移键控的装置和方法包括以差分相移键控方式调制第一数据序列的第一调制单元。 第二调制单元以幅度偏移来调制第二数据序列,并将导频信号插入到幅度调制信号中。 乘法器在乘以第一和第二调制单元的输出数据之后输出。 导频信号周期地或非周期地插入在幅度调制信号的子载波的位置。 第一解调单元(31)接收幅度 - 差分相移键控调制信号并用差分相移键控对接收信号进行解调。 第二解调单元(324)从接收到的信号中提取导频信号。
    • 5. 发明公开
    • OFDM 전송 시스템의 계층 변복조 장치 및 방법
    • 正交频分复用系统中分层调制/解调的装置和方法
    • KR1020080050236A
    • 2008-06-05
    • KR1020070067185
    • 2007-07-04
    • 한국전자통신연구원부산대학교 산학협력단
    • 임형수김영수최서미임종수김지현김완진김형남
    • H04J11/00
    • H04L27/261H03M13/1102H03M13/235H04L1/004H04L5/0048H04L27/2626
    • A method and an apparatus for hierarchical modulation/demodulation in an OFDM(Orthogonal Frequency Division Multiplexing) system are provided to perform an in-phase demodulation by using a pilot which is transferred to a second layer. A hierarchical modulation apparatus in an OFDM system includes first and second encoders(110,120), a pilot insertion unit(130), and a hierarchical modulation unit(140). The first encoder encodes a first layer signal stream, which is a basic layer signal. The second encoder encodes a second layer signal stream which is an enhancement layer signal. The pilot insertion portion inserts a pilot signal for estimating a channel coefficient to an encoded second layer signal stream. The hierarchical modulation portion modulates the second layer signal stream, to which the pilot signal is inserted, and the encoded first layer signal stream, and combines the encoded signals with each other.
    • 提供了一种用于OFDM(正交频分复用)系统中的分级调制/解调的方法和装置,以通过使用传送到第二层的导频来执行同相解调。 OFDM系统中的分级调制装置包括第一和第二编码器(110,120),导频插入单元(130)和分层调制单元(140)。 第一编码器编码作为基本层信号的第一层信号流。 第二编码器对作为增强层信号的第二层信号流进行编码。 导频插入部分将用于估计信道系数的导频信号插入到编码的第二层信号流。 分级调制部分调制导频信号插入到其上的第二层信号流和编码的第一层信号流,并将编码信号相互组合。
    • 9. 发明公开
    • 윈도우 API분석을 이용한 어플리케이션의 행위 판단 장치 및 방법
    • 使用Windows API分析确定应用程序行为的设备和方法
    • KR1020170102712A
    • 2017-09-12
    • KR1020160025189
    • 2016-03-02
    • 한국전자통신연구원
    • 한민호김영수이종훈김익균
    • G06F21/56G06F9/54G06F9/44G06F11/30
    • 본발명의일 실시예에따른어플리케이션의행위판단장치는 Windows API의호출정보를저장하는저장부;어플리케이션으로부터 Windows API 호출을받아커널에상기 Windows API 호출을하고, 상기호출받은 Windows API가기 분류된 Windows API 목록에포함되는경우, 상기호출받은 Windows API의호출정보를상기저장부에저장하는 Windows API 수집모듈; 및상기어플리케이션이악성코드라는경고정보를수신하고, 상기저장부에저장된 Windows API의호출정보중 상기경고정보와연관된 Windows API의호출정보를이용하여상기어플리케이션이수행한행위를판단하는상기경고관리모듈; 을포함할수 있다.
    • 对于根据本发明的一个实施例的应用动作确定装置是用于存储关于电话的Windows API信息的存储单元;接受从Windows API调用内核的应用Windows API调用,并且其中,所述呼叫接收顶端Windows API分类视窗 一种Windows API收集模块,用于当API包括在API列表中时,将被调用的Windows API的调用信息存储在存储单元中; 并且,该应用程序被确定的恶意代码的报警管理模块,警报接收到该信息后进行,并在Windows API的寻呼信息期间所执行的应用程序正在使用与所述警告信息相关联的Windows API的寻呼信息存储在存储单元 。 该可包含。