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：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：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：US20110235701A1

公开(公告)日：2011-09-29

申请号：US12809451

申请日：2008-09-04

申请人： Seungchul Kim ,  Min-Su Shin ,  Euna Choi ,  Joongyu Ryu ,  Dae-Ig Chang

发明人： Seungchul Kim ,  Min-Su Shin ,  Euna Choi ,  Joongyu Ryu ,  Dae-Ig Chang

IPC分类号： H04N7/26

CPC分类号： H04N21/2381 ,  H04H20/51 ,  H04N7/20 ,  H04N21/234327 ,  H04N21/4381 ,  H04N21/6143 ,  H04N21/6193 ,  H04N21/631 ,  H04N21/64792

摘要： Provided is an apparatus and method for transmitting/receiving multiband broadcasting using scalable video coding, which can solve a limitation of a transmission band in a multichannel satellite broadcasting service and increase availability of a satellite broadcasting service by scalably encoding video data and transmitting the data using a different transmission band for each layer. The apparatus for transmitting multiband broadcasting using scalable video coding includes: a scalable video encoder for scalably encoding video data to generate a scalable video stream having multiple layers; a multiplexer for multiplexing the scalable video elementary stream having multiple layers, a compressed audio elementary stream, and program specification information to generate a transport stream (TS); and a multiband transmitter for separating packets of the TS into multiple TSs according to pre-given priority information and transmitting the packet streams using a different transmission band.

摘要翻译： 提供了一种使用可分级视频编码发送/接收多频带​​广播的装置和方法，其可以解决多频道卫星广播业务中的传输频带的限制，并且通过可变地编码视频数据并且使用 每层不同的传输频带。 用于使用可分级视频编码来发送多频带广播的装置包括：可分级视频编码器，用于可缩放地编码视频数据以生成具有多层的可分级视频流; 多路复用器，用于多路复用具有多个层的可缩放视频基本流，压缩音频基本流和节目指定信息以生成传输流（TS）; 以及多频带发射机，用于根据预先给定的优先级信息将TS的分组分离成多个TS，并使用不同的传输频带来发送分组流。

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：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：US08422604B2

公开(公告)日：2013-04-16

申请号：US12518103

申请日：2007-10-30

申请人： Pan-Soo Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Seokheon Kang ,  Deokchang Kang ,  Wonjin Sung

发明人： Pan-Soo Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Seokheon Kang ,  Deokchang Kang ,  Wonjin Sung

IPC分类号： H03D1/00

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

摘要： Provided is a method for detecting frame sync and frame structure in a satellite broadcasting system, which acquires an estimated value for detecting frame structure and frame sync and overcomes distortion of correlation analysis values by summing differential correlation values for SOF positions in consideration of the variable frame length, and selecting a maximum value in a channel environment with low signal-to-noise ratio and high frequency error. SOF is a sync word indicating the start point of a frame. The method includes the steps of: acquiring SOF differential correlation value sequences; acquiring sums (di,t) of the correlation values normalized for SOF positions based on the number of symbols per frame by using the above-generated SOF differential correlation value sequences; and selecting a maximum value (dz,x) among the sums of correlation values, detecting z as a frame sync position, and detecting x as a frame structure index.

摘要翻译： 提供了一种用于检测卫星广播系统中的帧同步和帧结构的方法，其获取用于检测帧结构和帧同步的估计值，并通过将SOF位置的差分相关值相加考虑到可变帧来克服相关分析值的失真 长度，并在低信噪比和高频误差的信道环境中选择最大值。 SOF是指示帧起始点的同步字。 该方法包括以下步骤：获取SOF差分相关值序列; 通过使用上述生成的SOF差分相关值序列，基于每帧的符号数，获取针对SOF位置归一化的相关值的和（di，t） 并且选择相关值之和中的最大值（dz，x），检测z作为帧同步位置，并且检测x作为帧结构索引。

公开(公告)号：US20100316161A1

公开(公告)日：2010-12-16

申请号：US12773568

申请日：2010-05-04

申请人： Pan-Soo KIM ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Stefano Cioni ,  Alessandro Vanelli-Coralli ,  Giovanni Emanuele Corazza

发明人： Pan-Soo KIM ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Stefano Cioni ,  Alessandro Vanelli-Coralli ,  Giovanni Emanuele Corazza

IPC分类号： H04L27/00 ,  H04L27/06

CPC分类号： H04L1/0057 ,  H04B7/18528 ,  H04L1/0071 ,  H04L1/009 ,  H04L1/0625 ,  H04L27/2003

摘要： A method for transmitting data using a satellite channel includes: channel-encoding bit data using an e-BCH code; interleaving the encoded data; modulating the interleaved data according to a CPM scheme using four symbols; and transmitting the modulated data to a hub station.

摘要翻译： 使用卫星信道发送数据的方法包括：使用e-BCH码的信道编码比特数据; 交织编码数据; 使用四个符号根据CPM方案调制交错数据; 并将调制的数据发送到中心站。