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    • 4. 发明公开
    • 터보 부호 복호화 장치
    • 装备涡轮代码的装置
    • KR1020130088560A
    • 2013-08-08
    • KR1020120009875
    • 2012-01-31
    • 한국전자통신연구원
    • 이인기오덕길
    • H03M13/25H03M13/39
    • H03M13/258H03M13/3927
    • PURPOSE: A turbo code decoding device is provided to improve total operation time by omitting a part of an operation which takes a large amount of time. CONSTITUTION: A decoding device includes a first decoder (310), a second decoder (320), a first adder (340), and a second adder (330). The first adder produces a first sub input by adding an input sequence and a first output which is the output of the first decoder. The second decoder receives and decodes the first sub input, and produces a second output. The second adder produces a second sub input by adding the input sequence and the second output which is the output of the second decoder. The first decoder decodes the second sub input and produces the first output. [Reference numerals] (310) First decoder; (320) Second decoder; (350,360) Relay; (AA) Input sequence; (BB) Output from a decoder
    • 目的:提供turbo码解码装置,通过省略花费大量时间的部分操作来提高总的操作时间。 构成:解码装置包括第一解码器(310),第二解码器(320),第一加法器(340)和第二加法器(330)。 第一加法器通过添加作为第一解码器的输出的输入序列和第一输出来产生第一子输入。 第二解码器接收并解码第一子输入,并产生第二输出。 第二加法器通过将输入序列和作为第二解码器的输出的第二输出相加来产生第二子输入。 第一解码器解码第二子输入并产生第一输出。 (附图标记)(310)第一解码器; (320)第二解码器; (350,360)继电器; (AA)输入序列; (BB)从解码器输出
    • 5. 发明授权
    • 디지털 방송 시스템의 계층적 변복조 방법 및 장치
    • 디지털방송시스템의계층적변복조방법및장치
    • KR100930583B1
    • 2009-12-09
    • KR1020070048615
    • 2007-05-18
    • 한국전자통신연구원에스케이텔레콤 주식회사
    • 김태훈이인기최승현오천인장대익이호진이성훈이군섭이동학유재황
    • H04N7/015H04L27/18
    • A hierarchical modulation and demodulation method for a digital broadcasting system and an apparatus therefor are provided to enhance transmission efficiency through hierarchical modulation in a currently operated system. An RS(Reed-Solomon) coder(602) encodes the first broadcasting signal. A byte interleaver(605) interleaves the encoded first broadcasting signal. A convolution coder(607) encodes the interleaved first broadcasting signal again. A bit interleaver(609) interleaves the encoded first broadcasting signal. A second coder(617) encodes the second broadcasting signal. A second bit interleaver interleaves the encoded second broadcasting signal. A CDM(Code Division Multiplexing) multiplexer(611) multiplexes the first broadcasting signal and the second broadcasting signal outputted from the first bit interleaver and the second bit interleaver. A hierarchical modulator(613) hierarchically modulate the modulated signal by an 8PSK(8 Phase Shift Keying) type.
    • 提供了用于数字广播系统的分层调制和解调方法及其设备,以通过当前操作的系统中的分层调制来提高传输效率。 RS(里德 - 所罗门)编码器(602)编码第一广播信号。 字节交织器(605)交织编码的第一广播信号。 卷积编码器(607)再次对交织的第一广播信号进行编码。 比特交织器(609)交织编码的第一广播信号。 第二编码器(617)编码第二广播信号。 第二个比特交织器交织编码的第二个广播信号。 CDM(码分复用)复用器(611)复用从第一比特交织器和第二比特交织器输出的第一广播信号和第二广播信号。 分层调制器(613)通过8PSK(8相移键控)类型对调制信号进行分层调制。
    • 7. 发明公开
    • 위성 방송 시스템 프레임의 물리계층신호코드 정보 검출을위한 복호 방법
    • DVB-S2传输帧的高效PLSC信息解码方法
    • KR1020070060938A
    • 2007-06-13
    • KR1020050121173
    • 2005-12-09
    • 한국전자통신연구원서강대학교산학협력단
    • 김판수장대익이인기김태훈오덕길성원진강석헌강덕창
    • H04N7/20H03M13/00
    • H04L1/0045H03M13/136H03M13/15H03M13/6561H04H40/90H04L1/0057H04L1/0072H04L1/08
    • A decoding method for detecting a PLSC(Physical Layer Signaling Code) of a satellite broadcasting system frame is provided to improve reliability of PLSC decoding by performing (32,6) Reed-Muller decoding in parallel and reduce the quantity of calculations. A symbol vector is received, and a sum vector and a difference vector of a symbol pair are obtained from the received symbol vector. (32,6) Reed-Muller decoding using Hadamard matrix is performed on the sum vector and the difference vector to estimate a message bit of the sum vector and a message bit of the difference vector. The message bits are PLSC-encoded and modulated(403,404). A difference between the received symbol vector and a symbol according to the sum vector and a difference between the received symbol vector and a symbol according to the difference vector are calculated and compared to each other(405,406). When the difference according to the sum vector is smaller than the difference according to the difference vector, it is determined that Reed-Muller codeword is repeated. When the difference according to the sum vector is greater than the difference according to the difference vector, it is determined that Reed-Muller codeword is inverted.
    • 提供了一种用于检测卫星广播系统帧的PLSC(物理层信令码)的解码方法,以通过并行执行(32,6)里德 - 穆勒解码来减少计算量来提高PLSC解码的可靠性。 接收符号向量,从接收到的符号向量获得符号对的和矢量和差矢量。 (32,6)使用Hadamard矩阵的Reed-Muller解码对和矢量和差矢量执行,以估计和矢量的消息比特和差矢量的消息比特。 消息位是PLSC编码和调制(403,404)。 计算接收到的符号矢量与根据和矢量的符号与根据差分矢量的接收符号矢量与符号之间的差异,并进行比较(405,406)。 当根据和矢量的差小于根据差矢量的差时,确定Reed-Muller码字被重复。 当根据和矢量的差大于根据差矢量的差时,确定Reed-Muller码字被反转。
    • 10. 发明公开
    • 에러 정정 부호의 생성방법, 복호 방법 및 그 장치
    • 用于生成和解码错误修正代码的方法及其装置
    • KR1020120059806A
    • 2012-06-11
    • KR1020100121255
    • 2010-12-01
    • 한국전자통신연구원
    • 이인기오덕길정지원
    • H03M13/11H04L1/00
    • H03M13/6516H03M13/2963
    • PURPOSE: A method for producing and decoding an error correcting code and an apparatus thereof are provided to perform encryption by using an error correcting code in a data transmitting process in a satellite communication system. CONSTITUTION: A asymmetric matrix is generated by adding a column and/or a row consisting of zero bits to a matrix(110). Primary coding is performed by adding parity bits to the row of the asymmetric matrix consisting of data bits and the zero bits(130). Secondary coding is performed by adding the parity bits to each row of the encoded matrix in the primary encoding(150). The column and/or the row of the added zero beat are deleted from an asymmetric matrix generating step in the encoded matrix(170).
    • 目的:提供一种用于产生和解码纠错码的方法及其装置,用于通过在卫星通信系统的数据发送处理中使用纠错码进行加密。 构成:通过向矩阵(110)添加列和/或由零位组成的行来生成非对称矩阵。 通过将奇偶校验位添加到由数据位和零位组成的非对称矩阵的行中来执行主编码(130)。 通过将奇偶校验位添加到主编码(150)中的编码矩阵的每一行来执行二次编码。 从编码矩阵(170)中的不对称矩阵生成步骤中删除添加的零拍的列和/或行。