公开(公告)号：US08910011B2

公开(公告)日：2014-12-09

申请号：US13425840

申请日：2012-03-21

申请人： Sung Ik Park ,  Heung Mook Kim ,  Won Gi Seo

发明人： Sung Ik Park ,  Heung Mook Kim ,  Won Gi Seo

IPC分类号： H03M13/00 ,  H03M13/11

CPC分类号： H03M13/112 ,  H03M13/1151 ,  H03M13/1162 ,  H03M13/658 ,  H03M13/6583

摘要： A low-density parity check (LDPC) code decoding method may be provided. The LDPC code decoding method may linearize or perform step-approximation on a natural logarithm hyperbolic cosine function included in a check node updating equation of a sum-product algorithm used for decoding an LDPC code, and may convert the linearized function to correspond to a check node updating equation of a min-sum algorithm.

摘要翻译： 可以提供低密度奇偶校验（LDPC）码解码方法。 LDPC码解码方法可以对包含在用于解码LDPC码的和积算法的校验节点更新方程中的自然对数双曲余弦函数进行线性化或执行阶梯近似，并且可以将线性化函数转换成对应于检查 节点更新方程的最小和算法。

公开(公告)号：US20100265996A1

公开(公告)日：2010-10-21

申请号：US12741081

申请日：2008-09-26

申请人： Hyoung Soo Lim ,  Ho Min Eum ,  Sung Ik Park ,  Jae Hyun Seo ,  Yong Tae Lee ,  Yong Hoon Lee ,  Sung-Hoon Kim ,  Heung Mook Kim ,  Jong Soo Lim ,  Soo In Lee

发明人： Hyoung Soo Lim ,  Ho Min Eum ,  Sung Ik Park ,  Jae Hyun Seo ,  Yong Tae Lee ,  Yong Hoon Lee ,  Sung-Hoon Kim ,  Heung Mook Kim ,  Jong Soo Lim ,  Soo In Lee

IPC分类号： H04B7/14 ,  H04L25/20

CPC分类号： H04B7/15528

摘要： A repeater having different input and output frequencies converts a signal received with the input frequency to a first intermediate frequency signal based on a local oscillating frequency for intermediate frequency conversion, and converts the first intermediate frequency signal to a second intermediate frequency signal by performing digital processing on the first intermediate frequency signal. Then, the repeater generates a first frequency tone signal that corresponds to a difference between the input and output frequencies, and generates a second frequency tone signal from the local oscillating frequency for intermediate frequency conversion and the first frequency tone signal. The repeater up-converts the second intermediate frequency signal to the output frequency based on the second frequency tone signal, and transmits the signal.

摘要翻译： 具有不同输入和输出频率的转发器基于用于中频转换的本地振荡频率将输入频率接收的信号转换为第一中频信号，并通过执行数字处理将第一中频信号转换为第二中频信号 在第一个中频信号上。 然后，中继器产生对应于输入和输出频率之间的差的第一频率音调信号，并从用于中频变换的本地振荡频率和第一频率音调信号产生第二频率音调信号。 中继器基于第二频率信号将第二中频信号上变频到输出频率，并发送信号。

公开(公告)号：US08306472B2

公开(公告)日：2012-11-06

申请号：US12741081

申请日：2008-09-26

申请人： Hyoung Soo Lim ,  Ho Min Eum ,  Sung Ik Park ,  Jae Hyun Seo ,  Yong Tae Lee ,  Yong Hoon Lee ,  Sung-Hoon Kim ,  Heung Mook Kim ,  Jong Soo Lim ,  Soo In Lee

发明人： Hyoung Soo Lim ,  Ho Min Eum ,  Sung Ik Park ,  Jae Hyun Seo ,  Yong Tae Lee ,  Yong Hoon Lee ,  Sung-Hoon Kim ,  Heung Mook Kim ,  Jong Soo Lim ,  Soo In Lee

IPC分类号： H04Q7/32

CPC分类号： H04B7/15528

摘要： A repeater having different input and output frequencies converts a signal received with the input frequency to a first intermediate frequency signal based on a local oscillating frequency for intermediate frequency conversion, and converts the first intermediate frequency signal to a second intermediate frequency signal by performing digital processing on the first intermediate frequency signal. Then, the repeater generates a first frequency tone signal that corresponds to a difference between the input and output frequencies, and generates a second frequency tone signal from the local oscillating frequency for intermediate frequency conversion and the first frequency tone signal. The repeater up-converts the second intermediate frequency signal to the output frequency based on the second frequency tone signal, and transmits the signal.

摘要翻译： 具有不同输入和输出频率的转发器基于用于中频转换的本地振荡频率将输入频率接收的信号转换为第一中频信号，并通过执行数字处理将第一中频信号转换为第二中频信号 在第一个中频信号上。 然后，中继器产生对应于输入和输出频率之间的差的第一频率音调信号，并从用于中频变换的本地振荡频率和第一频率音调信号产生第二频率音调信号。 中继器基于第二频率信号将第二中频信号上变频到输出频率，并发送信号。

公开(公告)号：US20100146141A1

公开(公告)日：2010-06-10

申请号：US12602216

申请日：2008-05-30

申请人： Hyoung Soo Lim ,  Hyun-Chool Shin ,  Jae Hyun Seo ,  Heung Mook Kim ,  Yong Tae Lee ,  Sung Ik Park ,  Jong Soo Lim ,  Soo In Lee

发明人： Hyoung Soo Lim ,  Hyun-Chool Shin ,  Jae Hyun Seo ,  Heung Mook Kim ,  Yong Tae Lee ,  Sung Ik Park ,  Jong Soo Lim ,  Soo In Lee

IPC分类号： G06F15/16

CPC分类号： H04H20/42 ,  H04H20/72 ,  H04H40/18 ,  H04H60/07 ,  H04L1/0003 ,  H04L1/0017 ,  H04L1/0041 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/04 ,  H04L2001/0093 ,  H04L2001/0098 ,  H04N21/2343 ,  H04N21/234327

摘要： The present invention relates to a method and apparatus for transmitting digital broadcasting signals and a method and apparatus for receiving digital broadcasting signals that divide a stream into a plurality of layers according to characteristics of the stream, that independently process the layers, and that dynamically allocate frequencies on the basis of the processed signals. A method of transmitting digital broadcasting signals includes dividing a single stream into a plurality of layers according to characteristics of the stream; performing encoding and mapping on each of the layers; and dynamically allocating a frequency to each of the layers on the basis of the number of symbols for each layer.

摘要翻译： 本发明涉及一种用于发送数字广播信号的方法和装置，以及用于接收数字广播信号的方法和装置，所述数字广播信号根据流的特性将流划分成多个层，其独立地处理这些层，并且动态分配 基于处理的信号的频率。 一种发送数字广播信号的方法包括根据流的特征将单个流划分成多个层; 在每个层上执行编码和映射; 并且基于每个层的符号数量动态地将频率分配给每个层。

公开(公告)号：US08472872B2

公开(公告)日：2013-06-25

申请号：US12674418

申请日：2008-08-20

申请人： Sung Ik Park ,  Heung Mook Kim ,  Jong-Soo Lim ,  Soo In Lee

发明人： Sung Ik Park ,  Heung Mook Kim ,  Jong-Soo Lim ,  Soo In Lee

IPC分类号： H04B7/14

CPC分类号： H04B7/15585 ,  H04B1/525 ,  H04L25/03019

摘要： An on-channel repeating apparatus and method is provided. The method includes subtracting a replica of a feedback signal from a signal received from a main transmitter or another repeating apparatus; demodulating and equalizing the signal to remove noise, a multipath signal, and the remaining feedback signal from the signal; inserting identification signal having good correlation properties into the signal; modulating the signal; and transmitting the modulated signal.

摘要翻译： 提供了一种通道内重复装置和方法。 该方法包括从从主发射机或其他中继装置接收的信号中减去反馈信号的副本; 解调和均衡信号以去除噪声，多路径信号和来自信号的剩余反馈信号; 将具有良好相关性的识别信号插入信号中; 调制信号; 并发送调制信号。

公开(公告)号：US20100175096A1

公开(公告)日：2010-07-08

申请号：US12602122

申请日：2008-05-30

申请人： Jae Hyun Seo ,  Hyoung Soo Lim ,  Yong Tae Lee ,  Heung Mook Kim ,  Sung Ik Park ,  Jong Soo Lim ,  Soo In Lee

发明人： Jae Hyun Seo ,  Hyoung Soo Lim ,  Yong Tae Lee ,  Heung Mook Kim ,  Sung Ik Park ,  Jong Soo Lim ,  Soo In Lee

IPC分类号： H04N7/173

CPC分类号： H04N21/23614 ,  H04N21/234309 ,  H04N21/23439 ,  H04N21/2365 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/242 ,  H04N21/4122 ,  H04N21/4126 ,  H04N21/41407 ,  H04N21/4347 ,  H04N21/4382 ,  H04N21/64315

摘要： The present invention relates to a transmission method, a transmission apparatus, a reception method, and a reception apparatus of a digital broadcasting signal that can add frame header information to a front portion of a transmission frame in a transmission system for digital broadcasting to thereby determine a different transmission mode, modulation level, hierarchical modulation, error correction code, and the like for each temporally different transmission frame, and a transmission frame structure thereof. The transmission frame structure includes a frame header containing multiplexing information of the transmission frame, and a frame body containing data information associated with a service provided by the transmission frame. Also, the frame header may include a frame synchronization signal unit including synchronization signal information for extracting a start position of the transmission frame and a frame information unit including multiplexing information of data contained in the transmission frame. The multiplexing information denotes information associated with a transmission mode, a modulation level, a hierarchical modulation, and an error correction code of the data contained in the transmission frame.

摘要翻译： 本发明涉及数字广播信号的发送方法，发送装置，接收方法和接收装置，该数字广播信号可以将帧头信息添加到用于数字广播的发送系统中的发送帧的前部，从而确定 对于每个时间上不同的传输帧，不同的传输模式，调制级别，分级调制，纠错码等，以及其传输帧结构。 传输帧结构包括包含传输帧的复用信息的帧报头和包含与由传输帧提供的服务相关联的数据信息的帧体。 此外，帧头可以包括帧同步信号单元，其包括用于提取发送帧的开始位置的同步信号信息和包括复用传输帧中包含的数据的信息的帧信息单元。 复用信息表示与发送帧中包含的数据的发送模式，调制等级，分级调制和纠错码相关的信息。

公开(公告)号：US08482667B1

公开(公告)日：2013-07-09

申请号：US13483656

申请日：2012-05-30

申请人： Jae Kwon Lee ,  Young Woo Suh ,  Il Soo Kyung ,  Sung Ik Park ,  Heung Mook Kim ,  Nam Ho Hur

发明人： Jae Kwon Lee ,  Young Woo Suh ,  Il Soo Kyung ,  Sung Ik Park ,  Heung Mook Kim ,  Nam Ho Hur

IPC分类号： H04N7/00 ,  H04N5/21 ,  H04N5/38 ,  H04N5/40

CPC分类号： H04N7/08 ,  H04H20/31 ,  H04H2201/50

摘要： An apparatus for embedding additional information that may embed additional information into a digital television (TV) broadcast signal and transmit the additional information is provided. The apparatus may modulate the additional information to an intermediate frequency/radio frequency (IF/RF), embed the modulated additional information into the digital TV broadcast signal, and compensate for a distortion that may occur in an RF part, thereby correctly transmitting the additional information.

摘要翻译： 提供了一种用于将可附加信息嵌入数字电视（TV）广播信号并发送附加信息的附加信息的装置。 该装置可以将附加信息调制为中频/射频（IF / RF），将调制的附加信息嵌入到数字电视广播信号中，并补偿RF部分中可能发生的失真，从而正确地传输附加信息 信息。

公开(公告)号：US20110103513A1

公开(公告)日：2011-05-05

申请号：US12855034

申请日：2010-08-12

申请人： Jeongchang Kim ,  Jae Hyun Seo ,  Heung Mook Kim ,  Hyoungsoo Lim ,  Sung Ik Park

发明人： Jeongchang Kim ,  Jae Hyun Seo ,  Heung Mook Kim ,  Hyoungsoo Lim ,  Sung Ik Park

IPC分类号： H04L27/00

CPC分类号： H04B7/0667 ,  H04L1/004 ,  H04L2001/0093

摘要： Provided is a transmission apparatus and method for a terrestrial digital TV (DTV) broadcast and additional data using a multi-antenna. To transmit additional data inserted in a base band of a terrestrial DTV broadcast signal using a plurality of transmission antennas, the additional data signal may be temporal and spatial encoded or may be temporal and spatial multiplexed, and may be combined with a base band DTV broadcast signal before modulation and thus, a transmission efficiency of the additional data may increase without affecting a performance of an existing terrestrial DTV broadcast receiver.

摘要翻译： 提供了一种用于地面数字电视（DTV）广播的传输装置和方法以及使用多天线的附加数据。 为了使用多个发送天线发送插入到地面DTV广播信号的基带中的附加数据，附加数据信号可以是时间和空间编码的，或者可以是时间和空间复用的，并且可以与基带DTV广播 信号，因此，附加数据的传输效率可以增加而不影响现有地面DTV广播接收机的性能。

公开(公告)号：US08630278B2

公开(公告)日：2014-01-14

申请号：US12682796

申请日：2008-08-04

申请人： Jae Hyun Seo ,  Hyoung Soo Lim ,  Heung Mook Kim ,  Yong Tae Lee ,  Sung Ik Park ,  Jong Soo Lim ,  Soo In Lee

发明人： Jae Hyun Seo ,  Hyoung Soo Lim ,  Heung Mook Kim ,  Yong Tae Lee ,  Sung Ik Park ,  Jong Soo Lim ,  Soo In Lee

IPC分类号： H04J1/00 ,  H04J4/00 ,  G06F15/16

CPC分类号： H04L45/74 ,  H04H20/30

摘要： In a digital broadcasting signal transmission system, a transmission frame includes a frame body and a frame header, and the frame body is divided into a plurality of sub-bands in the frequency domain and is divided into a plurality of symbols in the time domain. The frame header is provided in the former part of the transmission frame and is transmitted with a signal in the time domain. The frame body includes a plurality of services, and the services respectively receive at least one sub-band and at least one symbol. The frame header includes information on the plurality of services, and information on the plurality of services includes information on the sub-band and the symbol to which the services are allocated, information on channel encoding levels of the services, and information on digital modulation levels of the services.

摘要翻译： 在数字广播信号传输系统中，传输帧包括帧体和帧头，并且帧体被划分成频域中的多个子带，并且在时域中被划分为多个符号。 帧头在传输帧的前一部分中提供，并且在时域中以信号发送。 帧体包括多个服务，并且服务分别接收至少一个子带和至少一个符号。 帧头包括关于多个服务的信息，并且关于多个服务的信息包括关于子带和分配服务的符号的信息，关于服务的信道编码级别的信息以及关于数字调制级别的信息 的服务。

公开(公告)号：US08423874B2

公开(公告)日：2013-04-16

申请号：US12907511

申请日：2010-10-19

申请人： Jae Hyun Seo ,  Sung Ik Park ,  Jeongchang Kim ,  Heung Mook Kim

发明人： Jae Hyun Seo ,  Sung Ik Park ,  Jeongchang Kim ,  Heung Mook Kim

IPC分类号： H03M13/00

CPC分类号： H03M13/356 ,  H03M13/1102 ,  H03M13/2906 ,  H03M13/2936 ,  H03M13/2957 ,  H03M13/2966 ,  H04L1/0045 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071

摘要： Provided is a terrestrial digital broadcasting transmitter. The terrestrial digital broadcasting transmitter may include a Reed-Solomon (RS) encoder to RS-encode an inputted broadcast signal, a forward error correction (FEC) encoder to channel-encode an inputted additional signal associated with the broadcast signal, a selector to select the RS-encoded broadcast signal or the channel-encoded additional signal, and a vestigial side band (VSB) transmitting part to transmit, to a receiver via a transmitting antenna, the selected signal, the selected signal being the RS-encoded broadcast signal or the channel-encoded additional signal selected by the selector.

摘要翻译： 提供了一种地面数字广播发射机。 地面数字广播发射机可以包括用于对输入的广播信号进行RS编码的里德 - 所罗门（RS）编码器，对与广播信号相关联的输入的附加信号进行信道编码的前向纠错（FEC）编码器，选择器选择 RS编码的广播信号或信道编码的附加信号，以及残留边带（VSB）发送部分，经由发送天线向所述接收机发送所选择的信号，所选择的信号是RS编码的广播信号， 由选择器选择的通道编码的附加信号。