公开(公告)号：US20110150133A1

公开(公告)日：2011-06-23

申请号：US12972886

申请日：2010-12-20

申请人： Dae Ig CHANG ,  Dongweon YOON ,  Jaeyoon Lee

发明人： Dae Ig CHANG ,  Dongweon YOON ,  Jaeyoon Lee

IPC分类号： H04L27/04

CPC分类号： H04L27/36

摘要： Disclosed is a bits-to-symbol mapping method of 4+12+16 amplitude phase shift keying (APSK) having excellent performance against the non-linearity of a high power amplifier. According to the present invention A bits-to-symbol mapping method of 4+12+16 APSK modulation, comprising: representing 32 symbols of the 4+12+16 APSK modulation by a polar coordinate and arranging the 32 symbols by a size of θ while giving priority to a symbol having a small signal size when the size of θ of two or more symbols are same; grouping the arranged 32 symbols into 4 groups according to quadrant regions where the symbols are located; and allocating bits so that the same bits are allocated to the symbols belonging to the same region for each region with respect to each of the first to fifth bits of the symbols grouped into four regions.

摘要翻译： 公开了一种4 + 12 + 16幅度相移键控（APSK）的比特符号映射方法，其具有优于大功率放大器的非线性特性。 根据本发明的4 + 12 + 16 APSK调制的比特到符号映射方法，包括：通过极坐标表示4 + 12 + 16个APSK调制的32个符号，并将32个符号排列为大小 ; 同时优先考虑具有小信号大小的符号，当大小为＆amp; 两个或多个符号相同; 根据符号位于的象限区域将排列的32个符号分组为4组; 并且分配比特，使得相对于分配给四个区域的符号的第一至第五比特中的每一个，针对每个区域分配属于相同区域的符号。

公开(公告)号：US20100135327A1

公开(公告)日：2010-06-03

申请号：US12629111

申请日：2009-12-02

申请人： Min Su SHIN ,  Dae Ig CHANG ,  Ho Jin LEE

发明人： Min Su SHIN ,  Dae Ig CHANG ,  Ho Jin LEE

IPC分类号： H04J3/24

CPC分类号： H04L1/0045 ,  H04L1/0072

摘要： An apparatus and method for generating frames for MPE-FEC decoding are disclosed. The apparatus for generating frames for MPE-FEC decoding includes: a packet reception unit configured to receive a packet; a packet attribute inspection unit configured to inspect whether or not the received packet forms a header part of a section; and a frame generation unit configured to generate a frame according to different methods depending on whether or not the packet forms a header part of a section.

摘要翻译： 公开了一种用于生成用于MPE-FEC解码的帧的装置和方法。 用于生成用于MPE-FEC解码的帧的装置包括：分组接收单元，被配置为接收分组; 分组属性检查单元，被配置为检查所接收的分组是否形成分段的报头部分; 以及帧生成单元，被配置为根据分组是否形成区段的标题部分，根据不同的方法生成帧。

公开(公告)号：US20100142625A1

公开(公告)日：2010-06-10

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： H04N7/26

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。

公开(公告)号：US20120093218A1

公开(公告)日：2012-04-19

申请号：US13276588

申请日：2011-10-19

申请人： Dae Ig CHANG ,  Seung Chul Kim ,  Tae Gyu Chang ,  Shin Wook Kim ,  Hyeon Jin Jeon ,  Woo Gun Lee

发明人： Dae Ig CHANG ,  Seung Chul Kim ,  Tae Gyu Chang ,  Shin Wook Kim ,  Hyeon Jin Jeon ,  Woo Gun Lee

IPC分类号： H04N7/26

CPC分类号： H04N21/234327 ,  H04N19/436 ,  H04N19/44 ,  H04N19/61 ,  H04N21/4302 ,  H04N21/4341

摘要： Disclosed is an adaptive multimedia decoding device and method for scalable satellite broadcasting. A TS decoder TS-decodes a first transmission stream and a second transmission stream received through different transmission bands to generate a first video stream, a second video stream, and an audio stream. A first decoder and a second decoder are configured of a plurality of operation modules that are sequentially performed so as to decode the first video stream, the second video stream, and the audio stream and are independently controlled and are operated in parallel. A controller compares the amount of data corresponding to one input unit of the first video stream and the second video stream input to each of the first decoder and the second decoder, to selectively perform each operation module configuring the first decoder and the second decoder whenever the data corresponding to one input unit are input.

摘要翻译： 公开了一种用于可伸缩卫星广播的自适应多媒体解码装置和方法。 TS解码器TS解码通过不同传输频带接收的第一传输流和第二传输流，以产生第一视频流，第二视频流和音频流。 第一解码器和第二解码器由顺序执行以解码第一视频流，第二视频流和音频流并且被独立控制并并行操作的多个操作模块构成。 控制器将对应于第一视频流的一个输入单元的数据量和输入到第一解码器和第二解码器中的每一个的第二视频流进行比较，以选择性地执行配置第一解码器和第二解码器的每个操作模块， 输入与一个输入单元对应的数据。

公开(公告)号：US20100138726A1

公开(公告)日：2010-06-03

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： H03M13/15 ,  G06F11/10

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 Formey'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（里德 - 所罗门）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Formey算法计算错误大小; 并通过错误位置和错误大小纠正错误。

公开(公告)号：US20080137775A1

公开(公告)日：2008-06-12

申请号：US11931074

申请日：2007-10-31

申请人： Tae Hoon KIM ,  In Ki LEE ,  Seung Hyun CHOI ,  Cheon In OH ,  Dae Ig CHANG ,  Ho Jin LEE ,  Sung Hoon LEE ,  Goon Seop LEE ,  Dong Hahk LEE ,  Jae Hwang YU

发明人： Tae Hoon KIM ,  In Ki LEE ,  Seung Hyun CHOI ,  Cheon In OH ,  Dae Ig CHANG ,  Ho Jin LEE ,  Sung Hoon LEE ,  Goon Seop LEE ,  Dong Hahk LEE ,  Jae Hwang YU

IPC分类号： H04L27/20 ,  H03D3/22 ,  H04L27/22

CPC分类号： H04L27/183

摘要： Provided are a method and apparatus for hierarchical modulation and demodulation in a Digital Multimedia Broadcasting (DMB) system. The method for hierarchical modulation in a digital broadcast signal transmitter includes the steps of: receiving a first broadcast signal and a second broadcast signal from outside, and encoding the broadcast signals by a first method and a second method, respectively; synthesizing the encoded first and second broadcast signals; determining a modulation point using a constellation diagram of an I-Q plane corresponding to the synthesized signal; and hierarchically phase-shift modulating the synthesized signal using the determined modulation point. Here, in the I-Q plane, the modulation point is deviated by a predetermined deviation angle from a phase axis passing through a modulation point of the first broadcast signal and an origin of the I-Q plane.

摘要翻译： 提供了一种用于数字多媒体广播（DMB）系统中的分级调制和解调的方法和装置。 数字广播信号发射机中的分级调制方法包括以下步骤：从外部接收第一广播信号和第二广播信号，并分别通过第一种方法和第二种方法对广播信号进行编码; 合成编码的第一和第二广播信号; 使用与合成信号对应的I-Q平面的星座图确定调制点; 以及使用所确定的调制点对合成信号进行分层相移。 这里，在I-Q平面中，调制点偏离了通过第一广播信号的调制点的相位轴和I-Q平面的原点的预定偏差角。