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1. 发明授权

US08422600B2 Apparatus and method for estimating phase error based on variable step size 有权
标题翻译：基于可变步长估计相位误差的装置和方法
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。

2. 发明申请

US20100091913A1 APPARATUS AND METHOD FOR ESTIMATING PHASE ERROR BASED ON VARIABLE STEP SIZE 有权
标题翻译：基于可变步长估计相位误差的装置和方法
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。

3. 发明授权

US07995578B2 Repetition apparatus and method for repeatedly transmitting and receiving data packet using different puncturing patterns 失效
标题翻译：用于使用不同的打孔模式重复地发送和接收数据分组的重复装置和方法
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。

4. 发明申请

US20090154458A1 REPETITION APPARATUS AND METHOD FOR REPEATEDLY TRANSMITTING AND RECEIVING DATA PACKET USING DIFFERENT PUNCTURING PATTERNS 失效
标题翻译：重复发送装置和重复发送和接收数据包使用不同的打孔模式的方法
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。

5. 发明申请

US20100272190A1 SCALABLE TRANSMITTING/RECEIVING APPARATUS AND METHOD FOR IMPROVING AVAILABILITY OF BROADCASTING SERVICE 审中-公开
标题翻译：可扩展发送/接收装置和改善广播服务可用性的方法
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

6. 发明申请

US20090154609A1 APPARATUS AND METHOD FOR SELECTING CORRELATION SCHEME BASED ON CARRIER FREQUENCY ERROR 有权
标题翻译：基于载波频率选择相关方案的装置和方法
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。

7. 发明授权

US08139691B2 Apparatus and method for selecting correlation scheme based on carrier frequency error 有权
标题翻译：基于载波频率误差选择相关方案的装置和方法
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。

8. 发明申请

US20100316161A1 METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA USING SATELLITE CHANNEL 审中-公开
标题翻译：使用卫星信道发送/接收数据的方法和装置
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。

9. 发明授权

US08155041B2 Method for handover between heterogeneous networks using link trigger signal in multi-interface mobile router 有权
标题翻译：在多接口移动路由器中使用链路触发信号的异构网络之间切换的方法
公开(公告)号：US08155041B2
公开(公告)日：2012-04-10
申请号：US12186670
申请日：2008-08-06
申请人： Hyun-Ha Hong , Ki-Seop Han , Dae-Ig Chang , Ho-Jin Lee
发明人： Hyun-Ha Hong , Ki-Seop Han , Dae-Ig Chang , Ho-Jin Lee
IPC分类号： H04W36/32
CPC分类号： H04L12/66 , H04W36/0016 , H04W36/14 , H04W40/36 , H04W80/04 , H04W84/005
摘要： Provided is a method for handover between heterogeneous networks using a link trigger signal in a multi-interface mobile router. The method includes: maintaining a state of a second network access interface in a sleep state, activating a first network access interface, receiving and transmitting the first network service to a subordinate node in the mobile router located in a first network; when the mobile router senses a second network link-up trigger signal while moving to the second network, changing the state of the second network access interface into an active state and performing handover; and receiving a second network service through the activated second network access interface in the mobile router performing the handover and transmitting the second network service to the subordinate node.
摘要翻译：提供了一种使用多接口移动路由器中的链路触发信号在异构网络之间切换的方法。该方法包括：将第二网络接入接口的状态保持在睡眠状态，激活第一网络接入接口，将第一网络服务接收并发送到位于第一网络中的移动路由器中的下级节点; 当移动路由器在移动到第二网络时感测到第二网络链接触发信号，将第二网络接入接口的状态改变为活动状态并执行切换; 以及通过执行切换的移动路由器中的激活的第二网络接入接口接收第二网络服务，并将第二网络服务发送到下级节点。

10. 发明申请

US20100158091A1 FREQUENCY ERROR ESTIMATOR AND FREQUENCY ERROR ESTIMATING METHOD THEREOF 审中-公开
标题翻译：频率误差估计器及其频率误差估计方法
公开(公告)号：US20100158091A1
公开(公告)日：2010-06-24
申请号：US12496917
申请日：2009-07-02
申请人： Pan-Soo Kim , Joon-Gyu Ryu , Dae-Ig Chang , Ho-Jin Lee , Myung-Hoon Sunwoo , Jang-Woong Park
发明人： Pan-Soo Kim , Joon-Gyu Ryu , Dae-Ig Chang , Ho-Jin Lee , Myung-Hoon Sunwoo , Jang-Woong Park
IPC分类号： H04B17/00 , H04L27/06
CPC分类号： H04L27/22 , H04L27/0014 , H04L2027/0067
摘要： Provided is a frequency error estimating method of a communication system. The method includes receiving a frame, and calculating a frequency error from a SOF field of the received frame.
摘要翻译：提供了一种通信系统的频率误差估计方法。该方法包括接收帧，并从接收到的帧的SOF字段计算频率误差。

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