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1. 发明授权

US08707126B2 Source-channel combined coding method and satellite broadcasting system using the same 失效
标题翻译：源通道组合编码方法和卫星广播系统使用相同
公开(公告)号：US08707126B2
公开(公告)日：2014-04-22
申请号：US12957272
申请日：2010-11-30
申请人： In Ki Lee , Dae Ig Chang , Kwang Deok Seo , Won Sup Chi
发明人： In Ki Lee , Dae Ig Chang , Kwang Deok Seo , Won Sup Chi
IPC分类号： H03M13/00
CPC分类号： H04N7/20 , H04H20/51 , H04H20/74 , H04H40/90
摘要： A source-channel combined coding method including: determining whether a channel signal-to-noise ratio (SNR) is varied or not; when it is determined that the channel SNR is varied, selecting a MODCOD suitable for the channel SNR by referring to a first table defining an SNR threshold value at which data transmission is performed without an error, for each MODCOD designating a low density parity check (LDPC) code rate and a modulation scheme; calculating a source coding rate by using an effective information bit rate of the selected MODCOD; extracting network abstraction layer (NAL) units for each layer from an inputted video frame so as to satisfy the calculated source coding rate, and packetizing the extracted NAL units; binding packets to configure a baseband (BB) frame; and LDPC coding and modulating the BB frame through the code rate and the modulation scheme which are designated by the selected MODCOD.
摘要翻译：源信道组合编码方法，包括：确定信道信噪比（SNR）是否变化; 当确定信道SNR变化时，通过参考指定低密度奇偶校验的每个MODCOD，通过参考定义不进行数据传输的SNR阈值的第一表来选择适合于信道SNR的MODCOD（ LDPC）码率和调制方案; 通过使用所选MODCOD的有效信息比特率来计算源编码率; 从输入的视频帧中提取每层的网络抽象层（NAL）单元，以便满足所计算的源编码率，并对所提取的NAL单元进行打包; 绑定数据包以配置基带（BB）帧; 以及通过由选择的MODCOD指定的码率和调制方案对BB帧进行LDPC编码和调制。

2. 发明授权

US08300705B2 Method for generating and processing hierarchical PES packet for digital satellite broadcasting based on SVC video 有权
标题翻译：基于SVC视频的数字卫星广播分层PES分组的生成和处理方法
公开(公告)号：US08300705B2
公开(公告)日：2012-10-30
申请号：US12631989
申请日：2009-12-07
申请人： In Ki Lee , Dae Ig Chang , Kwang Deok Seo , Won Sup Chi
发明人： In Ki Lee , Dae Ig Chang , Kwang Deok Seo , Won Sup Chi
IPC分类号： H04N11/02
CPC分类号： H04N21/234327 , H04N21/8451 , H04N21/8455
摘要： A method for generating and processing a hierarchical packetized elementary stream (PES) packet for digital satellite broadcasting based on SVC (Scalable Video Coding) video is disclosed. That is, when SVC video is applied to a digital satellite broadcasting system, a transmitter side can generate a hierarchical PES packet in consideration of a hierarchical structure of SVC video and a receiver side can effectively process a received hierarchical PES packet.
摘要翻译：公开了一种用于基于SVC（可缩放视频编码）视频产生和处理用于数字卫星广播的分级分组化基本流（PES）分组的方法。也就是说，当将SVC视频应用于数字卫星广播系统时，考虑到SVC视频的层次结构，发射机侧可以生成分层PES分组，并且接收机侧可以有效地处理接收到的分级PES分组。

3. 发明授权

US08418041B2 MPE-FEC RS decoder and decoding method thereof 有权
标题翻译： MPE-FEC RS解码器及其解码方法
公开(公告)号：US08418041B2
公开(公告)日：2013-04-09
申请号：US12629343
申请日：2009-12-02
申请人： In Ki Lee , Dae Ig Chang , Ho Jin Lee
发明人： In Ki Lee , Dae Ig Chang , Ho Jin Lee
IPC分类号： H03M13/00
CPC分类号： H03M13/15 , H03M13/1515 , H03M13/154 , H03M13/1545 , H03M13/1575
摘要： A decoding method of an MPE-FEC (MultiProtocol Encapsulation-Forward Error Correction) RS (Reed-Solomon) decoder, includes: substituting a value corresponding to an erasure error position with 0 in a reception signal; calculating a syndrome by using the reception signal; calculating an erasure position polynomial by using erasure information; calculating a modified syndrome by using the syndrome and the erasure position polynomial; calculating an erasure error size polynomial by using the modified syndrome; calculating an error position by using the erasure position polynomial; calculating an error size by using a modified Forney's algorithm; and correcting an error through the error position and the error size.
摘要翻译： MPE-FEC（多协议封装前向纠错）RS（Reed-Solomon）解码器的解码方法包括：在接收信号中用0代替与擦除错误位置相对应的值; 通过使用接收信号来计算综合征; 通过使用擦除信息来计算擦除位置多项式; 通过使用综合征和擦除位置多项式计算修正综合征; 通过使用修正的综合征计算擦除误差大小多项式; 通过使用擦除位置多项式来计算误差位置; 通过使用修改的Forney算法计算错误大小; 并通过错误位置和错误大小纠正错误。

4. 发明授权

US08527856B2 Encoding apparatus and method using turbo code, and permutation unit and method 失效
标题翻译：使用turbo码的编码装置和方法，以及置换单元和方法
公开(公告)号：US08527856B2
公开(公告)日：2013-09-03
申请号：US12942321
申请日：2010-11-09
申请人： In Ki Lee , Nam Soo Kim , Ji Won Jung
发明人： In Ki Lee , Nam Soo Kim , Ji Won Jung
IPC分类号： H03M13/03
CPC分类号： H04L1/0041 , H03M13/2771 , H03M13/2957 , H03M13/6362 , H04L1/0066 , H04L1/0069
摘要： Disclosed are an apparatus and a encoding method using a turbo code and a unit and a method of permutation. The apparatus for encoding using a turbo code according to an exemplary embodiment of the present invention includes: a first encoder that encodes 3 bits inputted from first to third blocks each of which is formed of N bits respectively, with recursive systematic convolutional codes to output a first parity bit; a permutation unit that permutates the 3 bits; a second encoder that encodes the permutated 3 bits with the recursive systematic convolutional codes to output a second parity bit; and a puncturing unit that optionally removes the first parity bit and the second parity bit in consideration of a coding rate of a predetermined turbo code to control the coding rate.
摘要翻译：公开了使用turbo码和单元的装置和编码方法以及置换方法。根据本发明的示例性实施例的使用turbo码进行编码的装置包括：第一编码器，其编码从第一到第三块输入的3位，每个块分别由N个比特形成，具有递归的系统卷积码，以输出第一个奇偶位; 排列3位的置换单元; 第二编码器，用递归系统卷积码对置换的3位进行编码，以输出第二奇偶校验位; 以及删截单元，其考虑到预定turbo码的编码率来选择性地去除第一奇偶校验位和第二奇偶校验位，以控制编码率。

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