公开(公告)号：US07995578B2

公开(公告)日：2011-08-09

申请号：US12334043

申请日：2008-12-12

申请人： Pansoo Kim ,  In-Ki Lee ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Namshik Kim ,  Bongseop Song ,  Hyuncheol Park

发明人： Pansoo Kim ,  In-Ki Lee ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Namshik Kim ,  Bongseop Song ,  Hyuncheol Park

IPC分类号： H04J3/16

CPC分类号： H04L1/0071 ,  H04L1/0013 ,  H04L1/0068 ,  H04L1/08

摘要： Provided are repetition apparatus and method for repeatedly transmitting and receiving a data packet using different puncturing patterns to overcome signal attenuation and fading in a high speed mobile environment by repeatedly transmitting the duplicated information bit sequences with parity bits having a different puncturing pattern after channel-encoding the duplicated information bit. The repetition apparatus for repeatedly transmitting a data packet, includes a dual data generator for generating duplicated information bit sequences identical to each of information bit sequences to transmit, a channel encoder for dividing each of the duplicated information bit sequences into a plurality of information bits, and generating coded data packets alternately having a plurality of parity bits according to different puncturing patterns for each of the divided information bits, and a transmitter for transmitting the generated coded data packets sequentially.

摘要翻译： 提供了一种重复装置和方法，用于使用不同的打孔模式重复地发送和接收数据包，以通过在频道编码之后重复地发送具有不同打孔图案的奇偶校验位的复制信息比特序列来克服高速移动环境中的信号衰减和衰落 重复的信息位。 用于重复发送数据分组的重复装置包括：双数据产生器，用于产生与要发送的每个信息比特序列相同的重复信息比特序列，用于将每个复制信息比特序列分成多个信息比特的信道编码器， 以及根据用于每个分割的信息比特的不同的删截图案，交替地生成具有多个奇偶校验位的编码数据分组，以及发送器，用于顺序地发送所生成的编码数据分组。

公开(公告)号：US20090154458A1

公开(公告)日：2009-06-18

申请号：US12334043

申请日：2008-12-12

申请人： Pansoo KIM ,  In-Ki Lee ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Namshik Kim ,  Bongseop Song ,  Hyuncheol Park

发明人： Pansoo KIM ,  In-Ki Lee ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Namshik Kim ,  Bongseop Song ,  Hyuncheol Park

IPC分类号： H04L12/56

CPC分类号： H04L1/0071 ,  H04L1/0013 ,  H04L1/0068 ,  H04L1/08

摘要： Provided are repetition apparatus and method for repeatedly transmitting and receiving a data packet using different puncturing patterns to overcome signal attenuation and fading in a high speed mobile environment by repeatedly transmitting the duplicated information bit sequences with parity bits having a different puncturing pattern after channel-encoding the duplicated information bit. The repetition apparatus for repeatedly transmitting a data packet, includes a dual data generator for generating duplicated information bit sequences identical to each of information bit sequences to transmit, a channel encoder for dividing each of the duplicated information bit sequences into a plurality of information bits, and generating coded data packets alternately having a plurality of parity bits according to different puncturing patterns for each of the divided information bits, and a transmitter for transmitting the generated coded data packets sequentially.

摘要翻译： 提供了一种重复装置和方法，用于使用不同的打孔模式重复地发送和接收数据分组，以通过在频道编码之后重复地发送具有不同打孔图案的奇偶校验位的复制信息比特序列来克服高速移动环境中的信号衰减和衰落 重复的信息位。 用于重复发送数据分组的重复装置包括：双数据产生器，用于产生与要发送的每个信息比特序列相同的重复信息比特序列，用于将每个复制信息比特序列分成多个信息比特的信道编码器， 以及根据用于每个分割的信息比特的不同的删截图案，交替地生成具有多个奇偶校验位的编码数据分组，以及发送器，用于顺序地发送所生成的编码数据分组。

公开(公告)号：US20090154609A1

公开(公告)日：2009-06-18

申请号：US12182447

申请日：2008-07-30

申请人： Pansoo KIM ,  Dae-Ig Chang ,  In-Ki Lee ,  Sangtae Kim ,  Wonjin Sung

发明人： Pansoo KIM ,  Dae-Ig Chang ,  In-Ki Lee ,  Sangtae Kim ,  Wonjin Sung

IPC分类号： H04L27/06

CPC分类号： H04L27/2657 ,  H04L7/042 ,  H04L27/2656 ,  H04L27/2675

摘要： Provided is a correlation scheme selecting apparatus and method that can acquire initial synchronization efficiently by calculating frequency error criterion threshold between correlation schemes and selecting a correlation scheme for each region when a correlation value is calculated for initial sync in a communication system with carrier frequency errors. The method for selecting a correlation scheme based on a carrier frequency error includes: calculating mis-detection probability values based on a normalized frequency offset for each correlation scheme; determining as a frequency-error criterion threshold a crossing point of graphs of the calculated mis-detection probability values for each correlation scheme; and selecting a correlation scheme based on the determined frequency-error criterion threshold.

摘要翻译： 提供了一种相关方案选择装置和方法，其可以通过计算相关方案之间的频率误差标准阈值并且在具有载波频率误差的通信系统中为初始同步计算相关值时选择每个区域的相关方案来有效地获取初始同步。 基于载波频率误差选择相关方案的方法包括：基于每个相关方案的归一化频率偏移来计算误检测概率值; 将每个相关方案的计算的错误检测概率值的曲线图的交叉点确定为频率 - 误差标准阈值; 以及基于所确定的频率 - 误差准则阈值来选择相关方案。

公开(公告)号：US08139691B2

公开(公告)日：2012-03-20

申请号：US12182447

申请日：2008-07-30

申请人： Pansoo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Sangtae Kim ,  Wonjin Sung

发明人： Pansoo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Sangtae Kim ,  Wonjin Sung

IPC分类号： H03D1/00

CPC分类号： H04L27/2657 ,  H04L7/042 ,  H04L27/2656 ,  H04L27/2675

摘要： Provided is a correlation scheme selecting apparatus and method that can acquire initial synchronization efficiently by calculating frequency error criterion threshold between correlation schemes and selecting a correlation scheme for each region when a correlation value is calculated for initial sync in a communication system with carrier frequency errors. The method for selecting a correlation scheme based on a carrier frequency error includes: calculating mis-detection probability values based on a normalized frequency offset for each correlation scheme; determining as a frequency-error criterion threshold a crossing point of graphs of the calculated mis-detection probability values for each correlation scheme; and selecting a correlation scheme based on the determined frequency-error criterion threshold.

摘要翻译： 提供了一种相关方案选择装置和方法，其可以通过计算相关方案之间的频率误差标准阈值并且在具有载波频率误差的通信系统中为初始同步计算相关值时选择每个区域的相关方案来有效地获取初始同步。 基于载波频率误差选择相关方案的方法包括：基于每个相关方案的归一化频率偏移来计算误检测概率值; 将每个相关方案的计算的错误检测概率值的曲线图的交叉点确定为频率 - 误差标准阈值; 以及基于所确定的频率 - 误差准则阈值来选择相关方案。

公开(公告)号：US08422600B2

公开(公告)日：2013-04-16

申请号：US12536856

申请日：2009-08-06

申请人： Pansoo Kim ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Jin-Young Kim ,  Jae-Sung Park ,  Young-Sun Lim

发明人： Pansoo Kim ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Jin-Young Kim ,  Jae-Sung Park ,  Young-Sun Lim

IPC分类号： H04L27/06 ,  H03M13/03

CPC分类号： H04L27/22 ,  H04L1/0047 ,  H04L1/005 ,  H04L1/0066 ,  H04L2027/0067

摘要： Disclosed is a phase error estimating an apparatus and a method which provides improved convergence speed and tracking speed even in mobile channel environment by variably applying the step size for phase error estimation according to channel status. The apparatus for estimating a phase error includes: a posterior probability (APP) average calculating unit for calculating an APP average value from a soft decision result of a currently received symbol; a step size determining unit for determining a step size variably according to channel status; and a phase error estimating unit for estimating a phase error of the currently received symbol from a phase error of a previously received symbol and the APP average value by using the variably determined step size.

摘要翻译： 公开了一种相位误差估计装置和方法，即使在移动信道环境中也可以通过根据信道状态可变地应用步长来进行相位误差估计，从而提高收敛速度和跟踪速度。 用于估计相位误差的装置包括：后验概率（APP）平均计算单元，用于根据当前接收的符号的软判决结果计算APP平均值; 步长确定单元，用于根据信道状态可变地确定步长; 以及相位误差估计单元，用于通过使用可变确定的步长来估计来自先前接收到的符号的相位误差的当前接收到的符号的相位误差和APP平均值。

公开(公告)号：US20100091913A1

公开(公告)日：2010-04-15

申请号：US12536856

申请日：2009-08-06

申请人： Pansoo KIM ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Jin-Young Kim ,  Jae-Sung Park ,  Young-Sun Lim

发明人： Pansoo KIM ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Jin-Young Kim ,  Jae-Sung Park ,  Young-Sun Lim

IPC分类号： H04L27/06

CPC分类号： H04L27/22 ,  H04L1/0047 ,  H04L1/005 ,  H04L1/0066 ,  H04L2027/0067

摘要： Disclosed is a phase error estimating an apparatus and a method which provides improved convergence speed and tracking speed even in mobile channel environment by variably applying the step size for phase error estimation according to channel status. The apparatus for estimating a phase error includes: a posterior probability (APP) average calculating unit for calculating an APP average value from a soft decision result of a currently received symbol; a step size determining unit for determining a step size variably according to channel status; and a phase error estimating unit for estimating a phase error of the currently received symbol from a phase error of a previously received symbol and the APP average value by using the variably determined step size.

摘要翻译： 公开了一种相位误差估计装置和方法，即使在移动信道环境中也可以通过根据信道状态可变地应用步长来进行相位误差估计，从而提高收敛速度和跟踪速度。 用于估计相位误差的装置包括：后验概率（APP）平均计算单元，用于根据当前接收的符号的软判决结果计算APP平均值; 步长确定单元，用于根据信道状态可变地确定步长; 以及相位误差估计单元，用于通过使用可变确定的步长来估计来自先前接收到的符号的相位误差的当前接收到的符号的相位误差和APP平均值。

公开(公告)号：US20100272190A1

公开(公告)日：2010-10-28

申请号：US12809472

申请日：2008-09-04

申请人： Seungchul Kim ,  Pansoo Kim ,  Dae-Ig Chang

发明人： Seungchul Kim ,  Pansoo Kim ,  Dae-Ig Chang

IPC分类号： H04N7/26

CPC分类号： H04N21/434 ,  H04N21/234327 ,  H04N21/234363 ,  H04N21/2383 ,  H04N21/26216 ,  H04N21/2662 ,  H04N21/4347 ,  H04N21/4382 ,  H04N21/6143

摘要： Provided is a scalable transmitting/receiving apparatus and method for improving availability of a broadcasting service, which can allow a reception party to select an optimum video according to an attenuation degree of a broadcasting signal by scalably encoding video data and transmitting it by a different transmission scheme for each layer. The scalable transmitting apparatus for improving availability of a broadcasting service includes: a scalable video encoder for scalably encoding video data to generate scalable video elementary streams having logical layers; a multiplexer for multiplexing the multiple scalable video elementary stream, a compressed audio elementary stream, and program specification information to generate a transport stream; and a scalable transmitter for separating the transport stream into multiple TS packet streams according to pre-given priority information, and transmitting the packet streams by a different transmission scheme for each layer. down-sampler

摘要翻译： 提供了一种用于提高广播业务的可用性的可扩展发送/接收装置和方法，其可以允许接收方根据广播信号的衰减程度通过可变地编码视频数据并通过不同的传输进行发送来选择最佳视频 方案。 用于提高广播业务可用性的可扩展发送装置包括：可分级视频编码器，用于对视频数据进行可扩展编码，以产生具有逻辑层的可分级视频基本流; 多路复用器，用于复用多个可缩放视频基本流，压缩音频基本流和节目指定信息以生成传输流; 以及可扩展发射机，用于根据预先给定的优先级信息将传输流分离成多个TS分组流，并且通过用于每个层的不同传输方案来发送分组流。 下采样器

公开(公告)号：US07978732B2

公开(公告)日：2011-07-12

申请号：US12094325

申请日：2006-12-11

申请人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Won-Jin Sung ,  Deok-Chang Kang ,  Seok-Heon Kang

发明人： Pan-Soo Kim ,  In-Ki Lee ,  Tae-Hoon Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Won-Jin Sung ,  Deok-Chang Kang ,  Seok-Heon Kang

IPC分类号： H04J3/16

CPC分类号： H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0038 ,  H04L2001/0093 ,  H04N21/2343 ,  H04N21/2383 ,  H04N21/2404 ,  H04N21/4382

摘要： Provided are an apparatus and method for deciding a transmission format using a variable frame length and a decoding method using the same. The apparatus for deciding the transmission format using the variable frame length includes: a frame synchronization acquiring unit for acquiring a frame synchronization of a received transmission frame; a correlation analyzing unit for performing a correlation analysis with respect to the transmission frame whose synchronization is acquired, considering frame lengths of respective frame structures; and a transmission frame structure deciding unit for deciding the structure of the received transmission frame using the analyzed correlation. Accordingly, a physical layer signaling code (PLSC) demodulation and decoding performance can be enhanced by determining the structure of the transmitted frame without carrying out a PLSC decoding in such a state that a frequency synchronization is not acquired.

摘要翻译： 提供了一种使用可变帧长度来决定传输格式的装置和方法以及使用其的解码方法。 用于使用可变帧长度确定传输格式的装置包括：帧同步获取单元，用于获取接收到的传输帧的帧同步; 相关分析单元，考虑相应帧结构的帧长度，执行相对于获取同步的传输帧的相关分析; 以及传输帧结构决定单元，用于使用所分析的相关来确定所接收的传输帧的结构。 因此，通过在不获取频率同步的状态下确定发送帧的结构而不执行PLSC解码，可以增强物理层信令码（PLSC）解调和解码性能。

公开(公告)号：US07761777B2

公开(公告)日：2010-07-20

申请号：US11518247

申请日：2006-09-11

申请人： In-Ki Lee ,  Dae-Ig Chang ,  Deock-Gil Oh

发明人： In-Ki Lee ,  Dae-Ig Chang ,  Deock-Gil Oh

IPC分类号： H03M13/00

CPC分类号： H04L27/3488 ,  H04L1/005 ,  H04L1/0053 ,  H04L1/0057 ,  H04L1/08 ,  H04L25/067

摘要： A soft decision demapping method includes defining distance values between a received signal and coordinates of constellation dots, obtaining a difference between a maximum value of distance values when a first bit is 0 and a maximum value of distance values when the first bit is 1, during a soft decision of the first bit of N-bit received signal symbol, acquiring a difference between a maximum value of distance values when a second bit is 0 and a maximum value of distance values when the second bit is 1, during a soft decision of the second bit of the N-bit received signal symbol, and deriving a difference between a maximum value of distance values when an Nth bit is 0 and a maximum value of distance values when the Nth bit is 1, during a soft decision of the Nth bit of the N-bit received signal symbol.

摘要翻译： 软判决解映射方法包括：定义接收信号和星座点坐标之间的距离值，获得当第一位为0时距离值的最大值与第一位为1时距离值的最大值之间的差值 在第二比特为0时获取第一比特的距离值的最大值与第二比特为1时的距离值的最大值之间的差的软判决， N位接收信号符号的第二位，并且在第N位的软判决期间得出第N位为0时的距离值的最大值与第N位为1时的距离值的最大值之间的差 位的N位接收信号符号。

公开(公告)号：US07587653B2

公开(公告)日：2009-09-08

申请号：US11442363

申请日：2006-05-26

申请人： Pan-Soo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Tae-Hoon Kim ,  Deock-Gil Oh ,  Wonjin Sung ,  Seokheon Kang ,  Deokchang Kang

发明人： Pan-Soo Kim ,  Dae-Ig Chang ,  In-Ki Lee ,  Tae-Hoon Kim ,  Deock-Gil Oh ,  Wonjin Sung ,  Seokheon Kang ,  Deokchang Kang

IPC分类号： H03M13/05

CPC分类号： H04L1/0045 ,  H03M13/136 ,  H03M13/15 ,  H03M13/6561 ,  H04H40/90 ,  H04L1/0057 ,  H04L1/0072 ,  H04L1/08

摘要： Provided is a decoding method for detecting Physical Layer Signaling Codes (PLSCs) from frames of a satellite broadcasting system. The method includes: a) acquiring a summation vector and a subtraction vector from an inputted symbol vector; b) performing parallel Reed-Muller (32,6) decoding onto the summation and subtraction vectors based on a Hadamard matrix and estimating message bits of the summation and subtraction vectors; c) performing PLSC coding and modulation onto the message bits of the summation and subtraction vectors; d) calculating a first difference between symbols of the received symbol vector and the summation vector symbols, and a second difference between the symbols of the received symbol vector and the subtraction vector symbols; and e) when the first difference is smaller than the second difference, determining a Reed-Muller codeword is repeated, or when the first difference is larger than the second difference, determining that the Reed-Muller codeword is inverted.

摘要翻译： 提供了一种从卫星广播系统的帧中检测物理层信令码（PLSC）的解码方法。 该方法包括：a）从输入的符号向量获取求和向量和减法向量; b）基于Hadamard矩阵对求和和减法向量执行并行Reed-Muller（32,6）解码并估计求和和减法向量的消息比特; c）对求和和减法向量的消息比特执行PLSC编码和调制; d）计算接收的符号向量和求和向量符号的符号之间的第一差值，以及接收到的符号向量和减法向量符号的符号之间的第二差值; 以及e）当第一差小于第二差时，重复确定里德 - 穆勒码字，或者当第一差大于第二差时，确定里德 - 穆勒码字被反转。