公开(公告)号：US09337868B2

公开(公告)日：2016-05-10

申请号：US14336074

申请日：2014-07-21

Applicant: NEC Laboratories America, Inc. ,  NEC Corporation

Inventor： Shaoliang Zhang ,  Fatih Yaman ,  Yoshihisa Inada ,  Takaaki Ogata ,  Takanori Inoue

IPC: H03M13/00 ,  H03M13/11 ,  H04L1/00 ,  H03M13/25 ,  H03M13/29 ,  H03M13/41

CPC classification number: H03M13/1111 ,  H03M13/256 ,  H03M13/2957 ,  H03M13/4138 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0064 ,  H04L1/0076

Abstract: At a receiver side, to enhance the performance of concatenated LDPC and TCM coding, an iterative decoding between TCM decoder and LDPC decoder enables improvement in the reliability of received LLRs of each symbol after each iteration. A SOVA output of the TCM is used for LDPC decoding, and then the updated LLRs from LDPC decoder are further looped back to the TCM decoder for the next iteration. In such a manner, the decoding performance could be significantly improved after just several iterations.

Abstract translation: 在接收机侧，为了提高级联LDPC和TCM编码的性能，TCM解码器和LDPC解码器之间的迭代解码器能够在每次迭代后提高每个符号的接收LLR的可靠性。 TCM的SOVA输出用于LDPC解码，然后来自LDPC解码器的更新的LLR进一步循环回TCM解码器进行下一次迭代。 以这种方式，在几次迭代之后，解码性能可以显着提高。

公开(公告)号：US20160080112A1

公开(公告)日：2016-03-17

申请号：US14954248

申请日：2015-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lijia Zhang ,  Yuanda Huang

IPC: H04L1/00

CPC classification number: H04L1/0054 ,  H03M13/256 ,  H04L1/0052 ,  H04L1/006

Abstract: Embodiments of the present invention relate to the field of communications, and provide a decoding method and a decoder, which are used to reduce decoding complexity. The method includes: receiving a to-be-decoded signal; performing region decision on the to-be-decoded signal according to a region decision rule formed by S region decision formulas, to acquire a region decision result; acquiring N constellation points according to the decision result, where the N constellation points are separately constellation points that are in the N subsets and that are closest to the to-be-decoded signal; acquiring N non-encoded bits corresponding to the N constellation points, and branch metrics between the to-be-decoded signal and the N constellation points; and performing Viterbi decoding based on the branch metrics and the N non-encoded bits, and outputting a decoding result corresponding to the to-be-decoded signal. The present invention is applicable to a signal decoding scenario.

Abstract translation: 本发明的实施例涉及通信领域，并且提供用于降低解码复杂度的解码方法和解码器。 该方法包括：接收待解码信号; 根据由S区域决策公式形成的区域判定规则对待解码信号进行区域决定，以获取区域判定结果; 根据决策结果获取N个星座点，其中N个星座点分别是在N个子集中并且最接近待解码信号的星座点; 获取对应于N个星座点的N个非编码比特，以及待解码信号和N个星座点之间的分支度量; 以及基于所述分支度量和所述N个未编码比特执行维特比解码，并且输出与待解码信号相对应的解码结果。 本发明适用于信号解码场景。

公开(公告)号：US09253000B2

公开(公告)日：2016-02-02

申请号：US12980846

申请日：2010-12-29

Applicant: In Hwan Choi ,  Jin Woo Kim ,  Won Gyu Song ,  Hyoung Gon Lee ,  Jae Hyung Song ,  Byoung Gill Kim ,  Chul Kyu Mun

Inventor： In Hwan Choi ,  Jin Woo Kim ,  Won Gyu Song ,  Hyoung Gon Lee ,  Jae Hyung Song ,  Byoung Gill Kim ,  Chul Kyu Mun

IPC: H04L23/02 ,  H04L27/04 ,  H04L1/00

CPC classification number: H04L27/04 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/0083

Abstract: A digital broadcasting system and a method for transmitting and receiving digital broadcast signal are disclosed. The method of processing a digital broadcast signal comprises encoding signaling information for mobile data, forming data groups including mobile data, a plurality of long known data sequences, a plurality of segmented known data sequences and the encoded signaling information, interleaving data in the data groups, transmitting the digital broadcast signal including the data groups having the interleaved data, and wherein the signaling information includes concatenation information indicating whether the segmented known data sequences are concatenated between the data groups included in the digital broadcast signal.

Abstract translation: 公开了一种用于发送和接收数字广播信号的数字广播系统和方法。 处理数字广播信号的方法包括编码用于移动数据的信令信息，形成包括移动数据的数据组，多个长的已知数据序列，多个分段的已知数据序列和编码的信令信息，在数据组中交织数据 发送包括具有交错数据的数据组的数字广播信号，并且其中信令信息包括指示分组的已知数据序列是否被连接在包括在数字广播信号中的数据组之间的级联信息。

公开(公告)号：US09251000B2

公开(公告)日：2016-02-02

申请号：US14525602

申请日：2014-10-28

Applicant: Micron Technology, Inc.

Inventor： Chandra C. Varanasi

IPC: H03M13/03 ,  G06F11/10 ,  H03M13/25 ,  H03M13/00 ,  H03M13/11 ,  H03M13/41

CPC classification number: G06F11/1076 ,  G06F11/1072 ,  H03M13/1102 ,  H03M13/255 ,  H03M13/256 ,  H03M13/4146 ,  H03M13/6325 ,  H03M13/6331 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065

Abstract: Methods and apparatuses for combining error coding and modulation schemes are described herein. One or more methods include encoding data using linear error correcting code, modulating the encoded data, writing the modulated data to memory, and decoding the written data using a Viterbi algorithm and a linear error correcting code decoder.

Abstract translation: 本文描述了用于组合错误编码和调制方案的方法和装置。 一种或多种方法包括使用线性纠错码对数据进行编码，调制编码数据，将调制数据写入存储器，以及使用维特比算法和线性纠错码解码器对写入数据进行解码。

公开(公告)号：US20160029037A1

公开(公告)日：2016-01-28

申请号：US14873666

申请日：2015-10-02

Applicant: LG ELECTRONICS INC.

Inventor： Kyung Won KANG ,  In Hwan CHOI

IPC: H04N19/467 ,  H04L1/00 ,  H04N19/89

CPC classification number: H04N19/467 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L25/03012 ,  H04L2025/03382 ,  H04N5/4401 ,  H04N19/30 ,  H04N19/89 ,  H04N21/2383 ,  H04N21/4382

Abstract: A method of processing a digital television (DTV) signal is disclosed. Herein, the DTV signal is generated by performing Reed-Solomon (RS) encoding on additional data, multiplexing the RS-encoded additional data with main data, RS encoding the multiplexed additional and main data, interleaving the RS-encoded additional and main data, trellis encoding the interleaved additional and main data, and transmitting a Radio Frequency (RF) DTV signal including the trellis-encoded additional and main data. The method to process the DTV signal includes receiving the DTV signal including the additional data multiplexed with the main data through an antenna, in which signaling information is periodically inserted in the additional data. The received DTV signal is demodulated including performing channel equalization on the demodulated DTV signal. Trellis decoding is performed on the channel-equalized DTV signal. Further, the additional data from the trellis-decoded DTV signal is extracted including removing dummy data from the extracted additional data.

Abstract translation: 公开了一种处理数字电视（DTV）信号的方法。 这里，通过对附加数据执行Reed-Solomon（RS）编码，将RS编码的附加数据与主数据进行多路复用，对多路复用的附加和主数据进行RS编码，交织RS编码的附加和主数据来生成DTV信号， 网格编码交织的附加和主数据，以及发送包括网格编码的附加和主数据的射频（RF）DTV信号。 处理DTV信号的方法包括通过天线接收包括与主数据多路复用的附加数据的DTV信号，其中信令信息被周期地插入到附加数据中。 所接收的DTV信号被解调，包括在解调的DTV信号上执行信道均衡。 在信道均衡的DTV信号上进行网格解码。 此外，提取来自网格解码的DTV信号的附加数据，包括从提取的附加数据中去除伪数据。

公开(公告)号：USRE45834E1

公开(公告)日：2016-01-05

申请号：US14514078

申请日：2014-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Won Gyu Song ,  Byoung Gill Kim ,  Hyoung-Gon Lee ,  In Hwan Choi ,  Jin Woo Kim

IPC: H04H20/71 ,  H03C1/52 ,  H04L1/00

CPC classification number: H04L1/0071 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0072

Abstract: A transmitting system, a receiving system, and a method for processing a broadcast signal are disclosed. The receiving system comprises a tuner, a channel equalizer, a turbo decoder, a demultiplexer, a first error correction decoder, a block deinterleaver, and a second error correction decoder. The tuner receives a broadcast signal including a data group. The data group comprises mobile service data, regularly spaced known data sequences, and signaling data. The turbo decoder performs turbo decoding for the signaling data included in the channel equalized broadcast signal in the channel equalizer. The block deinterleaver performs block deinterleaving for the turbo-decoded FIC data in a block unit of TNoG (the number of all data groups assigned to one subframe)×51 bytes.

公开(公告)号：US20150349921A1

公开(公告)日：2015-12-03

申请号：US14705626

申请日：2015-05-06

Applicant: OptCTS, Inc.

Inventor： Bruce Conway

IPC: H04L1/00

CPC classification number: H03M7/3082 ,  H03M7/42 ,  H03M7/6052 ,  H03M13/00 ,  H03M13/11 ,  H03M13/25 ,  H03M13/251 ,  H03M13/353 ,  H03M13/611 ,  H04L1/0009 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0043 ,  H04L1/006 ,  H04L1/0061 ,  H04L1/0075 ,  H04L9/00 ,  H04L25/4915 ,  H04L27/3416

Abstract: In various embodiments, a computer-implemented method for optimized data transfer utilizing optimized code table signaling is disclosed. In one embodiment, a computer-implemented method comprises receiving, by a processor, a digital bit stream and transforming, by the processor, the digital bit stream to an encoded digital bit stream. The encoded digital bit stream comprises at least one of a gateway channel, a composite channel, or a data channel, and any combination thereof. The computer-implemented method further comprises providing, by the processor, the encoded digital bit stream to a transmission system for transmission and establishing, by the processor, signal integrity by utilizing pre-coordinated, pre-distributed information to limit the transmission to an intended sender-receiver pair. The intended sender-receiver pair comprises the pre-coordinated, pre-distributed information.

Abstract translation: 在各种实施例中，公开了一种利用优化代码表信令优化数据传输的计算机实现的方法。 在一个实施例中，计算机实现的方法包括由处理器接收数字比特流，并且由处理器将数字比特流转换成编码的数字比特流。 编码数字比特流包括网关信道，复合信道或数据信道中的至少一个及其任何组合。 计算机实现的方法还包括由处理器将经编码的数字比特流提供给传输系统，以便由处理器通过利用预先协调的预分布式信息来将信号传输限制到预期的传输和建立信号完整性 发送方 - 接收方对。 预期的发送者 - 接收者对包括预协调的预分布信息。

公开(公告)号：US20150326252A1

公开(公告)日：2015-11-12

申请号：US14704377

申请日：2015-05-05

Applicant: Cisco Technology, Inc.

Inventor： Andreas Bisplinghoff

IPC: H03M13/35 ,  H04L27/18 ,  H04L27/04 ,  H03M13/25

CPC classification number: H04L1/007 ,  H03M13/23 ,  H03M13/256 ,  H03M13/258 ,  H03M13/353 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/0041 ,  H04L1/0044 ,  H04L1/005 ,  H04L1/0058 ,  H04L1/006 ,  H04L27/04 ,  H04L27/18 ,  H04L27/22 ,  H04L27/2332 ,  H04L27/362

Abstract: Techniques herein support enhanced multi-rate encoding and decoding of signals in multiple formats. In one embodiment, input data is received at a first device at one of a plurality of data rates. Encoder units are activated to produce streams of encoded input data. The encoder units are configured to operate at the same data rate. Differential encoding operations are performed to produce an encoded output stream. The encoded output stream is modulated for transmission to a second device. In another embodiment, a first device receives an encoded data stream that is transmitted from a second device. The modulated data stream includes encoded data at one of a plurality of data rates. Differential decoding is performed on the encoded data by activating one or more of a plurality of decoder units, where each of the plurality of decoder units is configured to operate at the same rate.

Abstract translation: 这里的技术支持多种格式的信号的增强的多速率编码和解码。 在一个实施例中，以多个数据速率中的一个以第一设备接收输入数据。 编码器单元被激活以产生编码输入数据流。 编码器单元配置为以相同的数据速率运行。 执行差分编码操作以产生编码的输出流。 编码的输出流被调制以传输到第二设备。 在另一实施例中，第一设备接收从第二设备发送的编码数据流。 调制数据流包括以多个数据速率之一的编码数据。 通过激活多个解码器单元中的一个或多个来对编码数据执行差分解码，其中多个解码器单元中的每一个被配置为以相同的速率操作。

公开(公告)号：US09184820B2

公开(公告)日：2015-11-10

申请号：US14271592

申请日：2014-05-07

Applicant: Cisco Technology, Inc.

Inventor： Gregory G. Raleigh ,  Vincent K. Jones, IV ,  Michael A. Pollack

IPC: H04L27/04 ,  H04B7/06 ,  H04L1/00 ,  H04L1/06 ,  H04L25/02 ,  H04B1/10 ,  H04B7/04 ,  H04B7/08 ,  H04L1/18 ,  H04L5/00 ,  H04L25/03 ,  H04L27/26 ,  H04W16/28 ,  H04W72/00 ,  H04W88/02 ,  H04W88/08 ,  H04B7/10

CPC classification number: H04B7/0615 ,  H04B1/1081 ,  H04B7/0443 ,  H04B7/0469 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0658 ,  H04B7/0669 ,  H04B7/068 ,  H04B7/0842 ,  H04B7/0854 ,  H04B7/10 ,  H04L1/0041 ,  H04L1/0054 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/18 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0046 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/0212 ,  H04L25/0242 ,  H04L25/03305 ,  H04L25/03331 ,  H04L25/03343 ,  H04L27/2601 ,  H04L27/2608 ,  H04L27/2626 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W16/28 ,  H04W72/00 ,  H04W88/02 ,  H04W88/08

Abstract: A space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and/or multiple receiver antenna elements, or multiple polarizations of a single transmitter antenna element and/or single receiver antenna element. The system is not restricted to wireless contexts and may exploit any channel having multiple inputs or multiple outputs and certain other characteristics. Multi-path effects in a transmission medium cause a multiplicative increase in capacity.

公开(公告)号：USRE45668E1

公开(公告)日：2015-09-08

申请号：US14250287

申请日：2014-04-10

Applicant: LG Electronics Inc.

Inventor： In Hwan Choi

IPC: H04L5/12 ,  H04L27/34 ,  H04L1/00 ,  H04N21/238

CPC classification number: H04L27/3405 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04N21/238

Abstract: A digital television (DTV) transmitter and a method of coding data in the DTV transmitter are disclosed. A data formatter generates an enhanced data packet including the enhanced data and a known data sequence. A data randomizer randomizes the enhanced data packet. A RS encoder RS-codes the randomized data packet by adding first parity data, and a data interleaver interleaves the RS-coded data packet. A trellis encoding unit trellis-encodes the interleaved data packet. Herein the trellis encoding unit includes a TCM encoder for generating a first output bit by trellis-encoding a first input bit and generating a second output bit by bypassing the first input bit, and a pre-coder for generating a third output bit by pre-coding a second input bit, wherein memories included in the TCM encoder and the pre-coder are initialized when the known data sequence is inputted to the trellis encoding unit.