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1. 发明申请

US20190238264A1 TRANSMITTING APPARATUS AND SIGNAL PROCESSING METHOD THEREOF 审中-公开
公开(公告)号：US20190238264A1
公开(公告)日：2019-08-01
申请号：US16376696
申请日：2019-04-05
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Se-ho MYUNG , Hong-sil JEONG , Kyung-joong KIM
IPC分类号： H04L1/00 , H03M13/00 , H03M13/11 , H03M13/27 , H03M13/25
CPC分类号： H04L1/0041 , H03M13/1165 , H03M13/255 , H03M13/2703 , H03M13/2778 , H03M13/6552 , H03M13/6555 , H04L1/0058 , H04L1/0071
摘要： A transmitting apparatus and a receiving apparatus are provided. The transmitting apparatus includes an encoder configured to generate a low density parity check (LDPC) codeword by performing LDPC encoding, an interleaver configured to interleave the LDPC codeword, and a modulator configured to modulate the interleaved LDPC codeword according to a modulation method to generate a modulation symbol. The interleaver performs interleaving by dividing the LDPC codeword into a plurality of groups, rearranging an order of the plurality of groups in group units, and dividing the plurality of rearranged groups based on a modulation order according to the modulation method.

2. 发明申请

US20190007064A1 TRANSMITTING APPARATUS AND INTERLEAVING METHOD THEREOF 审中-公开
公开(公告)号：US20190007064A1
公开(公告)日：2019-01-03
申请号：US16042628
申请日：2018-07-23
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Kyung-joong KIM , Se-ho MYUNG , Hong-sil JEONG , Daniel Ansorregui LOBETE , Belkacem MOUHOUCHE
IPC分类号： H03M13/27 , H04L1/00 , H03M13/00 , H03M13/35 , H03M13/25 , H03M13/11
CPC分类号： H03M13/2792 , H03M13/1102 , H03M13/1165 , H03M13/255 , H03M13/271 , H03M13/356 , H03M13/6538 , H03M13/6552 , H03M13/6555 , H04L1/0041 , H04L1/0057 , H04L1/0058 , H04L1/0071
摘要： A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low density parity check (LDPC) codeword by LDPC encoding based on a parity check matrix; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.

3. 发明申请

US20180048330A1 LOW DENSITY PARITY CHECK CODE FOR TERRESTRIAL CLOUD BROADCAST 审中-公开
公开(公告)号：US20180048330A1
公开(公告)日：2018-02-15
申请号：US15796177
申请日：2017-10-27
申请人： Electronics and Telecommunications Research Institute
发明人： Sung Ik PARK , Heung Mook KIM , Nam Ho HUR
IPC分类号： H03M13/11 , H03M13/00 , H04L1/00
CPC分类号： H03M13/1185 , H03M13/1105 , H03M13/116 , H03M13/1165 , H03M13/1168 , H03M13/616 , H03M13/6552 , H03M13/6555 , H04L1/0041 , H04L1/0058
摘要： Provided is an LDPC (Low Density Parity Check) code for terrestrial cloud broadcast. A method of encoding input information based on an LDPC (Low Density Parity Check) includes receiving information and encoding the input information with an LDPC codeword using a parity check matrix, wherein the parity check matrix may have a structure obtained by combining a first parity check matrix for an LDPC code having a higher code rate than a reference value with a second parity check matrix for an LDPC code having a lower code rate than the reference value.

4. 发明申请

US20170230062A1 PARALLEL BIT INTERLEAVER 审中-公开
公开(公告)号：US20170230062A1
公开(公告)日：2017-08-10
申请号：US15581148
申请日：2017-04-28
申请人： Panasonic Corporation
发明人： Mihail PETROV
IPC分类号： H03M13/27 , H03M13/00 , H03M13/11
CPC分类号： H03M13/2792 , H03M13/1134 , H03M13/1142 , H03M13/1154 , H03M13/116 , H03M13/1165 , H03M13/1168 , H03M13/255 , H03M13/27 , H03M13/271 , H03M13/2778 , H03M13/2957 , H03M13/356 , H03M13/6325 , H03M13/6552 , H03M13/6555 , H04L1/0058 , H04L1/0606 , H04L1/0618
摘要： A bit interleaving method applying a bit permutation process to a QC LDPC codeword made up of N cyclic blocks of Q bits each, dividing the processed codeword into constellation words of M bits each, and applying an intra-cyclic-block permutation process to the cyclic blocks, where the codeword is divided into F×N/M folding sections of M/F cyclic blocks each and the constellation words are each associated with one of the folding sections, and the bit permutation process is applied such that the constellation words are each made up of F bits from each of M/F different cyclic blocks in the associated section, after the permutation process.

5. 发明授权

US09647795B2 Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal 有权
公开(公告)号：US09647795B2
公开(公告)日：2017-05-09
申请号：US14141333
申请日：2013-12-26
申请人： LG ELECTRONICS INC.
发明人： Woo Suk Ko , Sang Chul Moon
IPC分类号： H04L27/36 , H04L1/00 , H03M13/25 , H03M13/27 , H03M13/35 , H03M13/00 , H04H20/76 , H04L5/00 , H04L27/26 , H04L27/34 , H04L27/04 , H03M13/11 , H03M13/15 , H03M13/29
CPC分类号： H04L1/0041 , H03M13/1165 , H03M13/15 , H03M13/152 , H03M13/255 , H03M13/2707 , H03M13/2721 , H03M13/2906 , H03M13/356 , H03M13/618 , H03M13/6362 , H03M13/6552 , H03M13/6555 , H04H20/76 , H04L1/0001 , H04L1/0057 , H04L1/0071 , H04L5/0048 , H04L5/0053 , H04L27/04 , H04L27/2613 , H04L27/34
摘要： According to one embodiment, a transmitter for transmitting at least one broadcast signal having PLP (Physical Layer Pipe) data includes: a BCH (Bose-Chadhuri-Hocquenghem) encoder configured to BCH encode the PLP data; an LDPC (Low Density Parity Check) encoder configured to LDPC encode the BCH encoded PLP data and output FECFrames (Forward Error Correction Frames); a mapper configured to map data in the FECFrames onto constellations by QAM (Quadrature Amplitude Modulation) schemes; a time-interleaver configured to time-interleave the mapped data; a frame builder configured to build a signal frame including preamble symbols and data symbols; and an OFDM (Orthogonal Frequency Division Multiplexing) modulator configured to modulate data in the signal frame by an OFDM scheme. The PLP data are processed by an LDPC scheme for a long or a short LDPC FECframe. The preamble symbols include signaling information for the time-interleaved PLP data. The data symbols include the time-interleaved PLP data.

6. 发明授权

US09602137B2 Transmitting apparatus and interleaving method thereof 有权
公开(公告)号：US09602137B2
公开(公告)日：2017-03-21
申请号：US14625862
申请日：2015-02-19
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Kyung-joong Kim , Se-ho Myung , Hong-sil Jeong , Daniel Ansorregui Lobete , Belkacem Mouhouche
IPC分类号： H03M13/00 , H03M13/27 , H04L1/00 , H03M13/11 , H03M13/25 , H03M13/35
CPC分类号： H03M13/2792 , H03M13/1102 , H03M13/1165 , H03M13/255 , H03M13/271 , H03M13/356 , H03M13/6538 , H03M13/6552 , H03M13/6555 , H04L1/0041 , H04L1/0057 , H04L1/0058 , H04L1/0071
摘要： A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low density parity check (LDPC) codeword by LDPC encoding based on a parity check matrix; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.

7. 发明授权

US09595977B2 LDPC decoder with efficient circular shifters 有权
标题翻译：具有高效圆形移位器的LDPC解码器
公开(公告)号：US09595977B2
公开(公告)日：2017-03-14
申请号：US14499284
申请日：2014-09-29
申请人： APPLE INC.
发明人： Asaf Landau , Tomer Ish-Shalom , Yonathan Tate
IPC分类号： H03M13/11 , H03M13/27 , H04L1/00 , H03M13/00 , H03M13/15
CPC分类号： H03M13/116 , H03M13/1102 , H03M13/1111 , H03M13/1137 , H03M13/1165 , H03M13/15 , H03M13/271 , H03M13/616 , H03M13/6552 , H03M13/6555 , H04L1/0057
摘要： A decoder includes variable-node circuitry, check-node circuitry and a Message Passing (MP) module, which includes multiple configurable partial cyclic shifters that each supports only a partial subset of shift values out of a full range of shift values 0 . . . L−1. The variable-node circuitry and check-node circuitry are configured to exchange messages with one another in accordance with a parity check matrix that represents a respective Quasi-Cyclic (QC)-Low Density Parity Check (LDPC) Error Correcting Code (ECC) and that includes L-by-L sub-matrices, and to process the exchanged messages to decode a given code word that was encoded using the QC-LDPC ECC. The MP module is configured to schedule the variable-node circuitry and check-node circuitry that are interconnected in accordance with a respective sub-matrix to exchange L messages simultaneously by assigning a given partial cyclic shifter to shift the L messages cyclically a number of positions that depends on a structure of the respective sub-matrix.
摘要翻译：解码器包括可变节点电路，校验节点电路和消息传递（MP）模块，消息传递（MP）模块包括多个可配置的部分循环移位器，每个移位器仅支持移位值0的全范围内的移位值的部分子集。。。 L-1。可变节点电路和校验节点电路被配置为根据表示相应的准循环（QC） - 低密度奇偶校验（LDPC）纠错码（ECC）的奇偶校验矩阵和彼此之间的交换消息其包括L乘L子矩阵，并处理所交换的消息以解码使用QC-LDPC ECC编码的给定码字。 MP模块被配置为根据相应的子矩阵来调度互连的可变节点电路和校验节点电路，以通过分配给定的部分循环移位器来周期性地移动L个消息来同时交换L个消息这取决于相应子矩阵的结构。

8. 发明申请

US20160233891A1 TRANSMITTING APPARATUS AND INTERLEAVING METHOD THEREOF 审中-公开
公开(公告)号：US20160233891A1
公开(公告)日：2016-08-11
申请号：US15099946
申请日：2016-04-15
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Se-ho MYUNG , Hong-sil JEONG , Kyung-Joong KIM
IPC分类号： H03M13/27 , H03M13/11 , H03M13/00 , H04L1/00
CPC分类号： H03M13/2792 , H03M13/11 , H03M13/1102 , H03M13/116 , H03M13/1165 , H03M13/1177 , H03M13/152 , H03M13/255 , H03M13/2707 , H03M13/271 , H03M13/2778 , H03M13/2906 , H03M13/6538 , H03M13/6552 , H03M13/6555 , H04L1/0041 , H04L1/0057 , H04L1/0071
摘要： A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low-density parity check (LDPC) codeword by LDPC encoding based on a parity check matrix; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.

9. 发明申请

US20150333771A1 PARALLEL BIT INTERLEAVER 审中-公开
标题翻译：并行位交互
公开(公告)号：US20150333771A1
公开(公告)日：2015-11-19
申请号：US14804466
申请日：2015-07-21
申请人： Panasonic Corporation
发明人： Mihail PETROV
IPC分类号： H03M13/27 , H03M13/11
CPC分类号： H03M13/2792 , H03M13/1134 , H03M13/1142 , H03M13/1154 , H03M13/116 , H03M13/1165 , H03M13/1168 , H03M13/255 , H03M13/27 , H03M13/271 , H03M13/2778 , H03M13/2957 , H03M13/356 , H03M13/6325 , H03M13/6552 , H03M13/6555 , H04L1/0058 , H04L1/0606 , H04L1/0618
摘要： A bit interleaving method applying a bit permutation process to a QC LDPC codeword made up of N cyclic blocks of Q bits each, dividing the processed codeword into constellation words of M bits each, and applying an intra-cyclic-block permutation process to the cyclic blocks, where the codeword is divided into F×N/M folding sections of M/F cyclic blocks each and the constellation words are each associated with one of the folding sections, and the bit permutation process is applied such that the constellation words are each made up of F bits from each of M/F different cyclic blocks in the associated section, after the permutation process.
摘要翻译：一种将位置换处理应用于由Q位的N个循环块组成的QC LDPC码字的比特交织方法，每个将经处理的码字分成每个M位的星座字，并将循环块置换处理应用于循环块，其中码字被分成M / F个循环块的F×N / M个折叠部分，并且星座词各自与折叠部分之一相关联，并且应用比特置换处理，使得星座词各自在排列处理之后由相关部分中的M / F个不同循环块中的每一个的F位组成。

10. 发明申请

US20150171896A1 METHODS AND APPARATUS FOR TRANSMITTING AND RECEIVING FEC FRAME HEADERS WITH VARIABLE HEADER MODULATION 审中-公开
标题翻译：用于发送和接收具有可变长度调制的FEC帧头的方法和装置
公开(公告)号：US20150171896A1
公开(公告)日：2015-06-18
申请号：US14629424
申请日：2015-02-23
申请人： THOMSON LICENSING
发明人： Hou-Shin Chen , Wen GAO
IPC分类号： H03M13/00 , H04L1/00 , H03M13/13
CPC分类号： H03M13/6555 , H03M13/136 , H04L1/0003 , H04L1/0041 , H04L1/0057 , H04L1/0072 , H04L27/20 , H04L27/22 , H04L27/38 , H04N21/2383 , H04N21/4382
摘要： A frame header of Forward Error Correction (FEC) is provided, suitable for using in the DVB-C2 Standard. In the DVB-C2 Standard, Adaptive Coding and Modulation (ACM) or Variable Coding and Modulation (VCM) is applied to each FEC block to provide as much flexibility as possible. As a result, a frame header is attached in front of each FEC frame to inform the coding rate, modulation type and physical layer pipe identifier. Besides the signaling of physical layer related information, the FEC frame header has to provide a structure so that it can be easily and reliably detected in the receiver. Motivated by the need in DVB-C2 Standard, an efficient and reliable FEC header suitable for DVB-C2 Standard is provided in at least one implementation in this disclosure that combines use of two different modulation types for the header information. In addition, the detection Method of the FEC header is described.
摘要翻译：提供了前向纠错（FEC）的帧头，适合在DVB-C2标准中使用。在DVB-C2标准中，自适应编码和调制（ACM）或可变编码和调制（VCM）被应用于每个FEC块以提供尽可能多的灵活性。结果，在每个FEC帧的前面附加帧头，以通知编码率，调制类型和物理层管道标识符。除了物理层相关信息的信令之外，FEC帧报头必须提供一种可以在接收机中容易且可靠地检测的结构。在DVB-C2标准中的需求驱动下，在本公开的至少一个实现中提供了适用于DVB-C2标准的高效且可靠的FEC报头，其结合了用于报头信息的两种不同调制类型的使用。另外，描述FEC报头的检测方法。

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