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1. 发明申请

US20070019761A1 Apparatus and method for receiving broadcasting service in a broadcasting system 有权
标题翻译：在广播系统中接收广播服务的装置和方法
公开(公告)号：US20070019761A1
公开(公告)日：2007-01-25
申请号：US11488645
申请日：2006-07-19
申请人： Sung-Jin Park , Hee-Jin Roh , Min-Goo Kim , Hyun-Seok Oh
发明人： Sung-Jin Park , Hee-Jin Roh , Min-Goo Kim , Hyun-Seok Oh
IPC分类号： H04L27/06
CPC分类号： H04L25/067 , H04L1/0054 , H04L1/0071 , H04L2001/0093
摘要： A broadcasting receiving apparatus and method in a broadcasting system are provided. In a broadcasting receiver, a demodulator demodulates a received broadcasting signal, clips a soft metric value for the demodulated signal to a number of bits, and outputs the clipped soft metric value. A mapper maps the clipped soft metric value to an index value with a resolution inversely proportional to the quantization level of the soft metric value. A deinterleaver deinterleaves the index value and a demapper demaps the deinterleaved index value to a representative value being a soft metric value from a range of soft metric values mapped to the index value. A channel decoder decodes the representative value.
摘要翻译：提供广播系统中的广播接收装置和方法。在广播接收机中，解调器解调所接收的广播信号，将解调信号的软度量值剪除为多个比特，并输出限幅软度量值。映射器将限幅软度量值映射到具有与软度量值的量化级别成反比的分辨率的索引值。解交织器对索引值进行解交织，并且解映射器将解交织的索引值从映射到索引值的软度量值的范围中解映射为作为软度量值的代表值。通道解码器解码代表值。

2. 发明授权

US07656973B2 Apparatus and method for receiving broadcasting service in a broadcasting system 有权
标题翻译：在广播系统中接收广播服务的装置和方法
公开(公告)号：US07656973B2
公开(公告)日：2010-02-02
申请号：US11488645
申请日：2006-07-19
申请人： Sung-Jin Park , Hee-Jin Roh , Min-Goo Kim , Hyun-Seok Oh
发明人： Sung-Jin Park , Hee-Jin Roh , Min-Goo Kim , Hyun-Seok Oh
IPC分类号： H04L27/06
CPC分类号： H04L25/067 , H04L1/0054 , H04L1/0071 , H04L2001/0093
摘要： A broadcasting receiving apparatus and method in a broadcasting system are provided. In a broadcasting receiver, a demodulator demodulates a received broadcasting signal, clips a soft metric value for the demodulated signal to a number of bits, and outputs the clipped soft metric value. A mapper maps the clipped soft metric value to an index value with a resolution inversely proportional to the quantization level of the soft metric value. A deinterleaver deinterleaves the index value and a demapper demaps the deinterleaved index value to a representative value being a soft metric value from a range of soft metric values mapped to the index value. A channel decoder decodes the representative value.
摘要翻译：提供广播系统中的广播接收装置和方法。在广播接收机中，解调器解调所接收的广播信号，将解调信号的软度量值剪除为多个比特，并输出限幅软度量值。映射器将限幅软度量值映射到具有与软度量值的量化级别成反比的分辨率的索引值。解交织器对索引值进行解交织，并且解映射器将解交织的索引值从映射到索引值的软度量值的范围中解映射为作为软度量值的代表值。通道解码器解码代表值。

3. 发明申请

US20060285603A1 Method and apparatus for performing channel compensation and symbol demodulation for coherent demodulation in an OFDM system 有权
公开(公告)号：US20060285603A1
公开(公告)日：2006-12-21
申请号：US11455784
申请日：2006-06-20
申请人： Eun-Jeong Yim , Ji-Won Ha , Hee-Jin Roh , Sung-Jin Park
发明人： Eun-Jeong Yim , Ji-Won Ha , Hee-Jin Roh , Sung-Jin Park
IPC分类号： H04L5/12
CPC分类号： H04L25/0212 , H04L25/03292 , H04L25/03318 , H04L27/2649
摘要： A method and apparatus for performing channel compensation and symbol demodulation using an estimated channel impulse response during coherent demodulation of a received Orthogonal Frequency Division Multiplexing (OFDM) signal are provided. In the apparatus, an FFT processor IFFT-processes a received signal. A channel compensator generates a channel-compensated signal by multiplying the FFT received signal by an estimated channel impulse response and calculates the power of the estimated channel impulse response. A symbol demodulator sets the power of the estimated channel impulse response as a reference point defining a minimum distance between signal points in a signal constellation, and decides soft metric values for channel decoding using the reference point and I-channel and Q-channel signal components of the channel-compensated signal. A decoder recovers information bits by decoding the soft metric values.

4. 发明授权

US07609615B2 Method and apparatus for performing channel compensation and symbol demodulation for coherent demodulation in an OFDM system 有权
标题翻译：在OFDM系统中进行相干解调的信道补偿和符号解调的方法和装置
公开(公告)号：US07609615B2
公开(公告)日：2009-10-27
申请号：US11455784
申请日：2006-06-20
申请人： Eun-Jeong Yim , Ji-Won Ha , Hee-Jin Roh , Sung-Jin Park
发明人： Eun-Jeong Yim , Ji-Won Ha , Hee-Jin Roh , Sung-Jin Park
IPC分类号： H04L5/12
CPC分类号： H04L25/0212 , H04L25/03292 , H04L25/03318 , H04L27/2649
摘要： A method and apparatus for performing channel compensation and symbol demodulation using an estimated channel impulse response during coherent demodulation of a received Orthogonal Frequency Division Multiplexing (OFDM) signal are provided. In the apparatus, an FFT processor IFFT-processes a received signal. A channel compensator generates a channel-compensated signal by multiplying the FFT received signal by an estimated channel impulse response and calculates the power of the estimated channel impulse response. A symbol demodulator sets the power of the estimated channel impulse response as a reference point defining a minimum distance between signal points in a signal constellation, and decides soft metric values for channel decoding using the reference point and I-channel and Q-channel signal components of the channel-compensated signal. A decoder recovers information bits by decoding the soft metric values.
摘要翻译：提供一种在接收到的正交频分复用（OFDM）信号的相干解调期间使用估计的信道脉冲响应进行信道补偿和符号解调的方法和装置。在该装置中，FFT处理器IFFT处理接收到的信号。信道补偿器通过将FFT接收信号乘以估计的信道脉冲响应来产生信道补偿信号，并且计算估计的信道脉冲响应的功率。符号解调器将估计的信道脉冲响应的功率设置为定义信号星座中的信号点之间的最小距离的参考点，并且使用参考点和I信道和Q信道信号分量来确定用于信道解码的软度量值的信道补偿信号。解码器通过解码软度量值来恢复信息比特。

5. 发明授权

US08332720B2 Apparatus and method for decoding in mobile communication system 有权
标题翻译：移动通信系统中的解码装置及方法
公开(公告)号：US08332720B2
公开(公告)日：2012-12-11
申请号：US12363253
申请日：2009-01-30
申请人： Sung-Jin Park , Hyun-Seok Oh
发明人： Sung-Jin Park , Hyun-Seok Oh
IPC分类号： H03M13/00
CPC分类号： H04L1/0054 , H03M13/09 , H03M13/4169 , H04L1/0061
摘要： Provided are an apparatus and a method for improving the performance of a decoder by improving a decoding speed when correcting an error of a control signal in Long Term Evolution (LTE). The apparatus includes an error determination unit for performing a traceback operation on a received signal, and simultaneously determining if an error has been generated to the received signal.
摘要翻译：提供了一种通过在长期演进（LTE）中校正控制信号的错误时提高解码速度来提高解码器的性能的装置和方法。该装置包括：误差确定单元，用于对接收到的信号执行回溯操作，并且同时确定是否已经对所接收的信号产生了错误。

6. 发明申请

US20070130495A1 Apparatus and method of multi-cyclic redundancy checking for section detection and reliability information acquisition in a DVB-H system 审中-公开
标题翻译： DVB-H系统中的段检测和可靠性信息采集的多循环冗余校验装置和方法
公开(公告)号：US20070130495A1
公开(公告)日：2007-06-07
申请号：US11523323
申请日：2006-09-18
申请人： Jung-Wook Yoon , Ji-Won Ha , Min-Goo Kim , Sung-Jin Park
发明人： Jung-Wook Yoon , Ji-Won Ha , Min-Goo Kim , Sung-Jin Park
IPC分类号： H03M13/00
CPC分类号： H04L1/0061 , H04L1/0046 , H04L1/0072
摘要： A method and apparatus of multi-Cyclic Redundancy Checking (CRC) are provided for section detection and reliability information acquisition in a Digital Video Broadcasting-Handheld (DVB-H) system. A Packet Identifier (PID) filtering process is performed for a packet received through a radio network. A transport stream packet including section data is detected. A CRC process is performed for a payload of an associated section using header information of the section data and frame buffering is processed. The method and apparatus can perform CRC in a parallel fashion using multiple CRC checkers without interference between adjacent sections and can perform section detection and reliability verification.
摘要翻译：提供了一种多循环冗余校验（CRC）方法和装置，用于数字视频广播手持（DVB-H）系统中的区段检测和可靠性信息采集。对通过无线电网络接收的分组执行分组标识符（PID）过滤。检测包括段数据的传输流分组。使用区段数据的头部信息对相关区段的有效载荷执行CRC处理，并处理帧缓冲。该方法和装置可以使用多个CRC检查器以并行方式执行CRC，而不会在相邻部分之间产生干扰，并且可以执行部分检测和可靠性验证。

7. 发明申请

US20060107193A1 Method and apparatus for efficiently decoding low density parity check code 审中-公开
标题翻译：用于有效解码低密度奇偶校验码的方法和装置
公开(公告)号：US20060107193A1
公开(公告)日：2006-05-18
申请号：US11247188
申请日：2005-10-12
申请人： Sung-Jin Park , Sang-Hyo Kim , Han-Ju Kim , Min-Goo Kim
发明人： Sung-Jin Park , Sang-Hyo Kim , Han-Ju Kim , Min-Goo Kim
IPC分类号： G06F11/00 , H03M13/00
CPC分类号： H03M13/1145 , H03M13/1105 , H03M13/1111 , H03M13/1134 , H03M13/1137
摘要： A method and apparatus are provided for decoding a forward error correction code in a mobile communication system using a LDPC code. A check node processor performs check node processing on information received with a plurality of check nodes and an accumulator accumulates check node output values from the check node processor with previous accumulated values. An edge memory stores the check node output values, and two accumulation memories separately store accumulated values from the accumulator and the previous accumulated values. A subtractor subtracts the check node output values from the accumulated values, and a hard-decision block performs hard-decision on the received information and the output value of the subtractor. A bit buffer stores the hard-decision result, and a parity check block performs parity check on the hard-decision result to determine whether to stop iterative decoding. A multiplexer delivers the subtraction result values to both the check node processor and the hard-decision block.
摘要翻译：提供一种用于使用LDPC码对移动通信系统中的前向纠错码进行解码的方法和装置。校验节点处理器对由多个校验节点接收的信息执行校验节点处理，并且累加器从具有先前累积值的校验节点处理器累加校验节点输出值。边缘存储器存储校验节点输出值，并且两个累积存储器分别存储来自累加器的累加值和先前累积值。减法器从累加值中减去校验节点输出值，硬判决块对接收到的信息和减法器的输出值进行硬判决。位缓冲器存储硬判决结果，奇偶校验块对硬判决结果执行奇偶校验，以确定是否停止迭代解码。多路复用器将减法结果值递送给校验节点处理器和硬判决块。

8. 发明授权

US07584389B2 Turbo decoding apparatus and method 有权
标题翻译： Turbo解码装置及方法
公开(公告)号：US07584389B2
公开(公告)日：2009-09-01
申请号：US10634746
申请日：2003-08-06
申请人： Sung-Jin Park , Min-Goo Kim , Soon-Jae Choi
发明人： Sung-Jin Park , Min-Goo Kim , Soon-Jae Choi
IPC分类号： G06F11/00
CPC分类号： H03M13/3927 , H03M13/2957 , H03M13/296
摘要： This invention relates to a turbo decoding apparatus and method for a communication system. A high-rate memory buffer operating at the same frequency as a turbo decoder is arranged between a memory buffer of a receiver and the turbo decoder. The decoding apparatus reads data bits stored in the memory buffer of the receiver via the high-rate memory buffer, delays the read data bits for a time required in the turbo decoder, and then applies the delayed data bits to a Soft-In Soft-Out (SISO) decoder of the turbo decoder. The memory buffer of the receiver outputs data bits at an operating frequency or clock of the turbo decoder.
摘要翻译：本发明涉及一种用于通信系统的turbo解码装置和方法。在turbo接收机的存储缓冲器和turbo解码器之间设置与turbo解码器相同频率工作的高速率存储器缓冲器。解码装置经由高速率存储器缓冲器读取存储在接收机的存储器缓冲器中的数据位，延迟读取数据位在turbo解码器所需的时间，然后将延迟的数据位应用于软入门软件，（SISO）解码器。接收机的存储器缓冲器以turbo解码器的工作频率或时钟输出数据位。

9. 发明授权

US07373582B2 Apparatus and method for turbo decoding using a variable window size 有权
标题翻译：用于使用可变窗口尺寸进行turbo解码的装置和方法
公开(公告)号：US07373582B2
公开(公告)日：2008-05-13
申请号：US11135633
申请日：2005-05-24
申请人： Sung-Jin Park , Min-Goo Kim , Soon-Jae Choi
发明人： Sung-Jin Park , Min-Goo Kim , Soon-Jae Choi
IPC分类号： H03M13/03
CPC分类号： H03M13/3905 , H03M13/3972
摘要： An apparatus and method for turbo decoding using a variable window size. A control logic block receives information about a code rate of received data bits and a data block size, adjusts a window size according to the code rate information, and computes an initial delay. Delta metric blocks compute delta metrics from input data bits of the block size, wherein the delta metrics represent a transition probability for a path from a state to another state, respectively. An alpha metric block receives a delta metric in synchronization with the initial delay, and computes an alpha metric representing a forward state transition probability in each state. One or more beta metric blocks receive delta metrics according to the adjusted window size, and compute beta metrics representing a backward state transition probability in each state, respectively. A log likelihood ratio (LLR) block receives the alpha metric and the beta metrics in synchronization with the initial delay, and computes LLR values for symbols in an ending state. Code reliability is maintained by using a sliding window structure based on a window size varying with a code rate, while simultaneously reducing a decoding time due to an unnecessary initial delay.
摘要翻译：一种使用可变窗口尺寸进行turbo解码的装置和方法。控制逻辑块接收关于接收到的数据位的码率和数据块大小的信息，根据码率信息调整窗口大小，并计算初始延迟。增量度量块计算来自块大小的输入数据位的增量度量，其中，所述增量度量度分别表示从状态到另一状态的路径的转移概率。 α度量块与初始延迟同步地接收增量度量，并且计算表示每个状态中的前向状态转移概率的α度量。一个或多个β度量块根据调整的窗口大小接收增量度量，并分别计算表示每个状态中的向后状态转移概率的β度量。对数似然比（LLR）块与初始延迟同步地接收α度量和β度量，并且计算处于结束状态的符号的LLR值。通过使用基于以码率变化的窗口尺寸的滑动窗口结构来维持代码可靠性，同时由于不必要的初始延迟而同时减少解码时间。

10. 发明申请

US20050262420A1 Apparatus and method for decoding low density parity check codes 有权
标题翻译：解码低密度奇偶校验码的装置和方法
公开(公告)号：US20050262420A1
公开(公告)日：2005-11-24
申请号：US11133287
申请日：2005-05-20
申请人： Sung-Jin Park , Min-Goo Kim , Nam Yu , Han-Ju Kim
发明人： Sung-Jin Park , Min-Goo Kim , Nam Yu , Han-Ju Kim
IPC分类号： H04L27/18 , H03M13/00 , H03M13/11
CPC分类号： H03M13/6566 , H03M13/1137
摘要： An apparatus and method for decoding low density parity check (LDPC) codes are provided. A memory module configured by a plurality of unit memories stores a reliability value. Variable node processors perform a computation associated with a variable node, and update data of the memory module in a column direction, respectively. Check node processors perform a computation associated with a check node, and update data of the memory module in a row direction, respectively. A parity checker determines if all errors have been corrected such that an iterative decoding process is performed. A memory access control module selects a unit memory to be updated by a variable node processor or a check node processor.
摘要翻译：提供了一种用于解码低密度奇偶校验（LDPC）码的装置和方法。由多个单元存储器构成的存储器模块存储可靠性值。可变节点处理器执行与变量节点相关联的计算，并且分别在列方向上更新存储器模块的数据。检查节点处理器执行与校验节点相关联的计算，并分别更新存储器模块在行方向上的数据。奇偶校验器确定所有错误是否已经被校正，使得执行迭代解码过程。存储器访问控制模块选择要由可变节点处理器或校验节点处理器更新的单元存储器。

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