公开(公告)号：KR1020140071063A

公开(公告)日：2014-06-11

申请号：KR1020120138981

申请日：2012-12-03

Applicant: 고려대학교 산학협력단

Inventor： 허준 ,  신정환

IPC: G06F11/10 ,  G06F17/10

CPC classification number: G06N99/002 ,  B82Y10/00 ,  G06F17/5045 ,  H03M13/01

Abstract: Provided are an apparatus and method for designing a quantum error correction code capable of designing a binary error correction code by correcting a binary error analyzed through a quantum error using a CWS code after a base state is formed by applying a gauge qubit to an initial state of the CWS code and a gauge group is formed for the base state including the gauge qubit. Also, provided are the apparatus and method for designing the quantum error correction code, capable of writing a word operator of the CWS performed in a transmission terminal by using the binary error correction code and writing a codeword including the gauge qubit by using the word operator.

Abstract translation: 提供了一种用于设计量子纠错码的装置和方法，其能够通过在通过将量子位应用到初始状态形成基本状态之后，通过使用CWS码校正通过量子误差分析的二进制误差来设计二进制纠错码 的CWS代码和测量组是为基态形成的，包括量子比特。 此外，提供了用于设计量子纠错码的装置和方法，其能够通过使用二进制纠错码来写入在发送终端中执行的CWS的字操作符，并且通过使用字操作符来写入包括量子位的码字 。

公开(公告)号：KR101382865B1

公开(公告)日：2014-04-08

申请号：KR1020120131418

申请日：2012-11-20

Applicant: 고려대학교 산학협력단

Inventor： 허준 ,  권경훈

IPC: H04L1/00 ,  H03M13/15

CPC classification number: H03M13/151 ,  H03M13/114 ,  H03M13/152 ,  H03M13/153 ,  H03M13/31 ,  H03M13/6508

Abstract: The present invention relates to a device and method and for transmitting and receiving data including a hybrid decoder of the variable code rate block turbo code, which comprises: a code rate and length determining section for determining the code rate and the length of the transmitted data; selection section of a generation polynomial for selecting a generation polynomial that matches the determined code rate and the length; and a coding section for performing encoding of the transmitted data based on the determined code rate and the selected generation polynomial. [Reference numerals] (100) Data transceiver; (110) Code rate and length determination unit; (120) Generation polynomial selecting unit; (130) Encoding unit; (140) Decoding unit; (150) Error estimating unit

Abstract translation: 本发明涉及一种装置和方法，用于发送和接收包括可变码率块turbo码的混合解码器的数据，包括：码率和长度确定部分，用于确定码率和发送数据的长度 ; 选择与所确定的码率和长度相匹配的生成多项式的生成多项式的选择部分; 以及编码部分，用于基于所确定的码率和所选择的生成多项式来执行所发送的数据的编码。 （附图标记）（100）数据收发器; （110）码率和长度确定单元; （120）生成多项式选择单元; （130）编码单元; （140）解码单元; （150）误差估计单元

公开(公告)号：KR1020130074850A

公开(公告)日：2013-07-05

申请号：KR1020110142908

申请日：2011-12-27

Applicant: 포항공과대학교 산학협력단 ,  고려대학교 산학협력단

Inventor： 허준 ,  손일권 ,  이동훈 ,  백종현 ,  권경훈

IPC: H04N1/56 ,  H04N1/387

CPC classification number: G06T1/005 ,  G06T7/10 ,  G06T2201/0065 ,  G06T2207/10004 ,  G06T2207/10024 ,  G06T2207/20021

Abstract: PURPOSE: A method and apparatus for hiding information with the dispersing color signals are provided to divide an original static image into unit blocks and to manipulate the color signal values of the unit blocks, thereby hiding text information. CONSTITUTION: A method for hiding information with the dispersing color signals includes: a step (S100) of dividing an original static image into the certain number of unit blocks, and dividing the unit block into a first and a second sub-block; a step (S110) of selecting one of the first and the second sub-block as a manipulating sub-block based on hidden data; and a step (S120) of generating a combined static image formed by combining the original static image and the hidden data with manipulating the ratio value of a predetermined color signal value among at least one color signal value representing the color of the selected manipulating sub-block. [Reference numerals] (AA) Start; (BB) End; (S100) Divide an original static image into the certain number of unit blocks and divide the unit block into a first and a second sub-block; (S110) Select one of the first and the second sub-block as a manipulating sub-block based on hidden data; (S120) Generate a combined static image by combining the original static image and the hidden data with manipulating the ratio value of a predetermined color signal value among at least one color signal value representing the color of the selected manipulating sub-block

Abstract translation: 目的：提供一种用分散颜色信号隐藏信息的方法和装置，用于将原始静态图像划分为单位块并操纵单位块的颜色信号值，从而隐藏文本信息。 构成：使用分散颜色信号隐藏信息的方法包括：将原始静态图像分割为特定数量的单位块，并将单位块划分为第一和第二子块的步骤（S100） 基于隐藏数据选择第一和第二子块之一作为操纵子块的步骤（S110）; 以及步骤（S120），生成通过组合原始静态图像和隐藏数据而形成的组合静态图像，操纵表示所选择的操作子图像的颜色的至少一个颜色信号值中的预定颜色信号值的比值， 块。 （附图标记）（AA）开始; （BB）结束; （S100）将原始静态图像划分为特定数量的单位块，并将单位块划分为第一和第二子块; （S110）基于隐藏数据，选择第一子块和第二子块中的一个作为操纵子块; （S120）通过将表示所选择的操纵子块的颜色的至少一个颜色信号值中的预定颜色信号值的比值与原始静态图像和隐藏数据组合来生成组合静止图像

公开(公告)号：KR1020130021631A

公开(公告)日：2013-03-06

申请号：KR1020110084010

申请日：2011-08-23

Applicant: 고려대학교 산학협력단

Inventor： 허준 ,  노광석

IPC: H03M13/00

CPC classification number: H03M13/3761 ,  H03M13/35

Abstract: PURPOSE: An encoding apparatus using a raptor code and an encoding method are provided to have an object in protecting an error differentially according to high priority to low priority of data, omitting decoding process if an error does not occur in transmitted data, and reducing time and costs by omitting a decoding process. CONSTITUTION: An encoding apparatus using a raptor code comprises receiving the input of a source symbol(210) in which a priority rank is differentiated, receiving the input of a generating unit generating an output vector differentiating the priority rank by using the source symbol in which the priority rank is differentiated and a rank maintenance matrices(220) of a block triangular matrix shape and an output vector from the generating unit, and a coding unit generating a coded symbol(250) in which the priority rank is differentiated by using a precode(230) and a LT code(Luby-Transform code)(240). [Reference numerals] (210) Source symbol; (220) Rank maintenance matrices; (230) Precode; (240) LT code; (250) Coded symbol

Abstract translation: 目的：提供一种使用猛禽码和编码方法的编码装置，其目的是根据数据的低优先级高优先级对差错进行保护，如果发送数据中不发生错误，则省略解码处理，并减少时间 并通过省略解码过程来降低成本。 构成：使用激励器代码的编码装置包括：接收优先级不同的源符号（210）的输入，接收生成单元的输入，生成单元通过使用源符号来生成区分优先级的输出向量，其中， 优先等级被区分，并且来自生成单元的块三角矩阵形状和输出向量的秩维护矩阵（220）和生成编码符号（250）的编码单元，其中优先级被使用预编码 （230）和LT代码（Luby-Transform代码）（240）。 （附图标记）（210）源符号; （220）等级维护矩阵; （230）预编码; （240）LT代码; （250）编码符号

公开(公告)号：KR1020090012188A

公开(公告)日：2009-02-02

申请号：KR1020080073646

申请日：2008-07-28

Applicant: 고려대학교 산학협력단

Inventor： 허준

IPC: H04L1/00 ,  H03M13/00 ,  H04B1/10

CPC classification number: H04L1/005 ,  H03M13/3761

Abstract: An apparatus and a method for reducing decoding delay of a raptor code are provided to reduce the decoding delay by changing a shape of a matrix for a decoding process previously to perform a necessary operation for an additional symbol. A decoding unit(10) obtains an upper triangular matrix by calculating a pre-coding symbol applying a Gaussian elimination method. A rank calculation unit(20) obtains the rank of the upper triangular matrix in the decoding unit. A decision unit(30) compares the pre-coding symbol of the decoding unit with the rank of the rank calculation unit and sends the output according to the comparison result. An exchanging unit(40) receives the matrix from the rank calculation unit, the pre-coding symbol from the decision unit, and arranges and outputs the matrix by exchanging the order of the row and the column to exist diagonal components. A matrix generating unit(50) receives the exchanged result and generates the matrix by adding a repair symbol part based on the previously inputted matrix and sends the matrix to the decoding unit.

Abstract translation: 提供了一种用于减少猛禽码的解码延迟的装置和方法，用于通过改变先前用于执行附加符号的必要操作的解码处理的矩阵的形状来减少解码延迟。 解码单元（10）通过计算应用高斯消除方法的预编码符号来获得上三角矩阵。 等级计算单元（20）获得解码单元中的上三角矩阵的等级。 判定单元（30）将解码单元的预编码符号与秩计算单元的等级进行比较，并根据比较结果发送输出。 交换单元（40）从秩计算单元接收矩阵，来自决策单元的预编码符号，并且通过交换行和列的顺序来排列并输出矩阵以存在对角分量。 矩阵生成单元（50）接收所交换的结果，并且通过基于先前输入的矩阵添加修复符号部分来生成矩阵，并将矩阵发送到解码单元。