公开(公告)号：US20120027413A1

公开(公告)日：2012-02-02

申请号：US13182629

申请日：2011-07-14

Applicant: Oscar E. Agazzi

Inventor： Oscar E. Agazzi

IPC: H04B10/12 ,  H04J14/08 ,  H04B10/04

CPC classification number: H04L1/006 ,  H03M1/0604 ,  H03M1/1215 ,  H04L1/0041 ,  H04L1/0054 ,  H04L25/03146 ,  H04L25/03343 ,  H04L25/497 ,  H04L25/4975

Abstract: A method and apparatus for transmission of data on bandwidth limited fiber optic channels. A multilevel signaling alphabet having multiple levels of optical intensity are used to transmit signals on optical channels. In order to counteract the decrease in signal to noise ratio resulting from the use of a multilevel signaling alphabet over a bilevel signaling alphabet trellis encoding of the data to be transmitted is employed. To counteract intersymbol interference due to signaling faster than the Nyquist Rate, equalization methods such as Tomlinson-Harashima preceding and decision feedback equalization are employed.

Abstract translation: 一种在带宽限制光纤通道上传输数据的方法和装置。 使用具有多级光强度的多级信令字母表来在光信道上传输信号。 为了抵消由于在要发送的数据的双层信令字母格局编码中使用多级信令字母表而导致的信噪比的降低。 为了抵消由于信令速度高于奈奎斯特速率的符号间干扰，采用前面的Tomlinson-Harashima和判决反馈均衡等均衡方法。

公开(公告)号：US08095854B2

公开(公告)日：2012-01-10

申请号：US11938016

申请日：2007-11-09

Applicant: Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

Inventor： Mustafa Eroz ,  Feng-Wen Sun ,  Lin-Nan Lee

IPC: H03M13/00

CPC classification number: H04L27/186 ,  H03M13/1111 ,  H03M13/112 ,  H03M13/1137 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2906 ,  H03M13/356 ,  H03M13/6583 ,  H04H40/90 ,  H04L1/00 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L27/2053

Abstract: An approach for generating a structured Low Density Parity Check (LDPC) codes is provided. Structure of the LDPC codes is provided by restricting a certain part of the parity check matrix to be lower triangular, hence enabling a very simple encoding method that does not require the generator matrix of the code. The approach can also exploit the unequal error protecting capability of LDPC codes on transmitted bits to provide extra error protection to more vulnerable bits of high order modulation constellations (such as 8-PSK (Phase Shift Keying)).

Abstract translation: 提供了一种用于生成结构化低密度奇偶校验（LDPC）码的方法。 通过将奇偶校验矩阵的某一部分限制为三角形来提供LDPC码的结构，因此能够实现不需要代码的生成矩阵的非常简单的编码方法。 该方法还可以利用LDPC码在传输比特上的不相等的差错保护能力，为高阶调制星座（如8-PSK（相移键控））的更脆弱的比特提供额外的错误保护。

公开(公告)号：US08094742B2

公开(公告)日：2012-01-10

申请号：US11456760

申请日：2006-07-11

Applicant: Byoung Gill Kim ,  In Hwan Choi ,  Woo Chan Kim ,  Jae Hyung Kim ,  Hyoung Gon Lee ,  Jong Moon Kim

Inventor： Byoung Gill Kim ,  In Hwan Choi ,  Woo Chan Kim ,  Jae Hyung Kim ,  Hyoung Gon Lee ,  Jong Moon Kim

IPC: H04L5/12

CPC classification number: H04L27/04 ,  H04L1/006 ,  H04L1/007

Abstract: A digital television (DTV) transmitter and a method of processing known data in the DTV transmitter are disclosed. The method of processing known data in a digital television (DTV) transmitter includes generating a known data sequence, trellis-encoding the known data sequence, the trellis-encoded known data sequence having upper, middle, and lower bits, wherein at least one of the upper, middle, and lower bits has an m-sequence property, and mapping the trellis-encoded known data sequence into one of 2-level, 4-level, and 8-level data sequences, wherein the mapped data sequence has substantially an m-sequence property, wherein a data sequence has an m-sequence property when a peak value among auto-correlation values of the data sequence having a length of N is 1 and all the off-peak auto-correlation values are −1/N.

公开(公告)号：US08078945B2

公开(公告)日：2011-12-13

申请号：US12099959

申请日：2008-04-09

Applicant: Jin Pil Kim ,  In Hwan Choi ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Jin Woo Kim ,  Hyoung Gon Lee ,  Jong Moon Kim ,  Won Gyu Song

Inventor： Jin Pil Kim ,  In Hwan Choi ,  Kook Yeon Kwak ,  Byoung Gill Kim ,  Jin Woo Kim ,  Hyoung Gon Lee ,  Jong Moon Kim ,  Won Gyu Song

IPC: G06F11/00

CPC classification number: H03M13/2721 ,  H03M13/09 ,  H03M13/2918 ,  H03M13/2921 ,  H03M13/293 ,  H03M13/2936 ,  H03M13/2948 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0071 ,  H04L2001/0093 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131

Abstract: A digital broadcasting system for transmitting/receiving a digital broadcasting signal and a data processing method are disclosed. First program table information and second program table information, which has an identifier different from an identifier of the first program information, are multiplexed and transmitted. The first program table information describes main service data through fixed reception channel, while the second program information described mobile service data through mobile reception channel. Thus, a broadcast receiving system can receive and output the mobile service data by parsing the second program table information.

Abstract translation: 公开了一种用于发送/接收数字广播信号的数字广播系统和数据处理方法。 具有与第一节目信息的标识符不同的标识符的第一节目表信息和第二节目表信息被复用并发送。 第一节目表信息通过固定接收频道描述主业务数据，而第二节目信息通过移动接收信道描述移动业务数据。 因此，广播接收系统可以通过解析第二节目表信息来接收和输出移动业务数据。

公开(公告)号：US08059732B2

公开(公告)日：2011-11-15

申请号：US11939353

申请日：2007-11-13

Applicant: Haralabos Papadopoulos ,  Carl-Erik W. Sundberg

Inventor： Haralabos Papadopoulos ,  Carl-Erik W. Sundberg

IPC: H04K1/10

CPC classification number: H04L1/0668 ,  H04B7/022 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0625 ,  H04L1/0631 ,  H04L27/2626 ,  H04L27/2647

Abstract: A method, apparatus and system are disclosed herein for wireless transmission from multiple non-collocated base stations. In one embodiment, the system comprises one or more terminals; and at least two base stations wirelessly communicating information-bearing signals from a set of antenna elements dispersed over multiple, non-collocated base stations to the one or more terminals using coding systems.

Abstract translation: 本文公开了一种用于从多个非并置基站进行无线传输的方法，装置和系统。 在一个实施例中，系统包括一个或多个终端; 以及至少两个基站，使用编码系统将分散在多个非并置基站上的一组天线元件的信息承载信号无线地传送到一个或多个终端。

公开(公告)号：US20110260918A1

公开(公告)日：2011-10-27

申请号：US12910827

申请日：2010-10-24

Applicant: QUANG NGUYEN

Inventor： QUANG NGUYEN

IPC: H01Q3/00 ,  H04L27/06 ,  H04B7/02 ,  H04L27/00

CPC classification number: H04L1/0055 ,  H04B7/0617 ,  H04B7/0682 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0071 ,  Y02D70/124 ,  Y02D70/142 ,  Y02D70/444

Abstract: In a preferred embodiment, a wireless mobile system implementing Beam Steering Phased Array Antenna is disclosed having an array of [N×N] antennas mounting on the wireless mobile Terminal transmits unidirectional signals directly to the Base Station as opposed to transmitting multi-directional signals. The wireless mobile system implementing beam-steering phased array antenna, wherein the phases of the signals fed to the array antenna elements are varied by the phase shifters in small programmable step values calculated by the Digital Signal Processor (DSP) Phase Processor which causes the antennas radiation beam to be steered at angle θ. Thus, improvements in beam steering for transmitting unidirectional signals directly to the Base Station will greatly reduce the energy required by the wireless terminal for transmitting signals to the Base Station. And, the effective result would achieve our green-energy technology requirements.

Abstract translation: 在优选实施例中，公开了实现波束转向相控阵天线的无线移动系统，其具有安装在无线移动终端上的[N×N]个天线阵列，将单向信号直接发射到基站，而不是发送多方向信号。 实现波束转向相控阵天线的无线移动系统，其中馈送到阵列天线元件的信号的相位由数字信号处理器（DSP）相位处理器计算的小的可编程步进值中的移相器改变，这导致天线 辐射束以角度转向; 因此，用于将单向信号直接发送到基站的波束控制的改进将大大降低无线终端向基站发送信号所需的能量。 而有效的结果将达到我们的绿色能源技术要求。

公开(公告)号：US20110258518A1

公开(公告)日：2011-10-20

申请号：US13116403

申请日：2011-05-26

Applicant: Ba-Zhong Shen ,  Hau Thien Tran ,  Kelly Brian Cameron

Inventor： Ba-Zhong Shen ,  Hau Thien Tran ,  Kelly Brian Cameron

IPC: H03M13/05 ,  G06F11/10

CPC classification number: H03M13/6561 ,  G11B20/18 ,  G11B20/1833 ,  H03M13/11 ,  H03M13/1102 ,  H03M13/1105 ,  H03M13/25 ,  H03M13/255 ,  H03M13/256 ,  H03M13/258 ,  H03M13/27 ,  H03M13/2767 ,  H03M13/2771 ,  H03M13/2785 ,  H03M13/2957 ,  H03M13/4123 ,  H03M13/4161 ,  H03M13/45 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/005 ,  H04L1/0058 ,  H04L1/006 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/1671 ,  H04L27/18 ,  H04L27/2602

Abstract: Variable modulation within combined LDPC (Low Density Parity Check) coding and modulation coding systems. A novel approach is presented for variable modulation encoding of LDPC coded symbols. In addition, LDPC encoding, that generates an LDPC variable code rate signal, may also be performed as well. The encoding can generate an LDPC variable code rate and/or modulation signal whose code rate and/or modulation may vary as frequently as on a symbol by symbol basis. Some embodiments employ a common constellation shape for all of the symbols of the signal sequence, yet individual symbols may be mapped according different mappings of the commonly shaped constellation; such an embodiment may be viewed as generating a LDPC variable mapped signal. In general, any one or more of the code rate, constellation shape, or mapping of the individual symbols of a signal sequence may vary as frequently as on a symbol by symbol basis.

Abstract translation: 组合LDPC（低密度奇偶校验）编码和调制编码系统中的可变调制。 提出了一种用于LDPC编码符号的可变调制编码的新颖方法。 此外，也可以执行生成LDPC可变码率信号的LDPC编码。 该编码可以生成其码率和/或调制可以像逐个符号一样频繁地变化的LDPC可变码率和/或调制信号。 一些实施例对信号序列的所有符号采用公共星座形状，但是可以根据共同形状的星座图的不同映射来映射各个符号; 这样的实施例可以被视为生成LDPC可变映射信号。 通常，信号序列的各个符号的码率，星座形状或映射中的任何一个或多个可以像逐个符号一样频繁地变化。

公开(公告)号：US20110182372A1

公开(公告)日：2011-07-28

申请号：US13016157

申请日：2011-01-28

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

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

IPC: H04L27/00

CPC classification number: H04L1/007 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0083 ,  H04L25/03012

Abstract: The disclosed method of processing a digital broadcast signal comprises generating one RS frame or two RS frames for a data group, forming the data group being divided to 5 data regions, wherein the 5 data regions include a first data region which is located at central of the data group, a second data region which is concentric about the first data region, a third data region which is concentric about the first and second data region, a fourth data region which is concentric about the first, second and third data region and a fifth data region which includes scalable amount of the mobile service data, wherein the fifth data region includes 5 extended data blocks, and wherein data in one of the 5 extended data blocks are merged into the data blocks of the first data region when the one RS frame is generated for the data group.

Abstract translation: 所公开的处理数字广播信号的方法包括为数据组生成一个RS帧或两个RS帧，形成被划分为5个数据区的数据组，其中5个数据区包括位于 数据组，与第一数据区域同心的第二数据区域，与第一和第二数据区域同心的第三数据区域，与第一，第二和第三数据区域同心的第四数据区域，以及 第五数据区域，其包括可移动服务数据的可伸缩量，其中第五数据区域包括5个扩展数据块，并且其中5个扩展数据块之一中的数据被合并到第一数据区域的数据块中， 为数据组生成帧。

公开(公告)号：US20110142161A1

公开(公告)日：2011-06-16

申请号：US12966587

申请日：2010-12-13

Applicant: Won Gyu SONG ,  Byoung Gil KIM ,  Jin Woo KIM ,  Hyoung Gon LEE ,  Jae Hyung SONG ,  In Hwan CHOI ,  Chul Kyu MUN

Inventor： Won Gyu SONG ,  Byoung Gil KIM ,  Jin Woo KIM ,  Hyoung Gon LEE ,  Jae Hyung SONG ,  In Hwan CHOI ,  Chul Kyu MUN

IPC: H04L27/00

CPC classification number: H04L27/04 ,  H04L1/0054 ,  H04L1/006 ,  H04L25/0226 ,  H04L2025/03382 ,  H04L2027/0097

Abstract: A transmitting system and a method of transmitting digital broadcast signal are disclosed. The method of transmitting digital broadcasting signal in a transmitter includes forming a data group including mobile data, known data sequences, trellis initialization data bytes, wherein the known data sequences are sequentially concatenated with the trellis initialization bytes, interleaving data in the data group, wherein the data group includes a plurality of data blocks and scalable data blocks, wherein the known data sequences inserted in a predetermined area of the data group, trellis encoding on the interleaved data and initializing memories for the trellis encoding using initial bits of the trellis initialization data bytes in the interleaved data, wherein the initial bits of the trellis initialization data bytes are calculated using exclusive or operation with predetermined memory values of the memories for the trellis encoding, transmitting a broadcast signal including the trellis encoded data during a slot.

Abstract translation: 公开了一种发送系统和发送数字广播信号的方法。 在发射机中发送数字广播信号的方法包括形成包括移动数据，已知数据序列，网格初始化数据字节的数据组，其中已知数据序列与网格初始化字节顺序连接，交织数据组中的数据，其中 数据组包括多个数据块和可伸缩数据块，其中插入在数据组的预定区域中的已知数据序列，对交错数据进行网格编码，并使用网格初始化数据的初始位来初始化存储器进行网格编码 字节，其中网格初始化数据字节的初始比特使用专用或操作用于网格编码的存储器的预定存储器值来计算，在时隙期间发送包括格状编码数据的广播信号。

公开(公告)号：US20110141975A1

公开(公告)日：2011-06-16

申请号：US13002210

申请日：2009-06-23

Applicant: Norman Herzog ,  Guenther Zurek-Terhardt

Inventor： Norman Herzog ,  Guenther Zurek-Terhardt

IPC: H04W56/00

CPC classification number: H04H20/67 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0071 ,  H04L27/02 ,  H04L2001/0093 ,  H04N21/2383 ,  H04N21/43637 ,  H04N21/6131 ,  H04W72/005

Abstract: A central station and several transmitters in a single-frequency network are synchronised. A first reference time signal is generated with a high degree of time and frequency accuracy on the short and long time horizon and a second reference time signal is generated and supplied to the central station with a low degree of time and frequency accuracy on the short time horizon and a high degree of accuracy on the long time horizon. A transport data stream with a temporally variable data rate that corresponds to the frequency of the second reference time signal is generated by means of the central station, said stream being supplied to several transmitters and comprising distributed data packets that contain the transmission instant of the data packet, referenced to the second reference time signal, for the transmitters. The time accuracy of the transmission instant of each data packet is optimised by averaging the time and frequency accuracy of the second reference signal over time. The system temporally offsets the transport data stream received by each transmitter from the central station until the data packets of the transport data stream that each contain a transmission instant are transmitted at the correct transmission instant with regard to the first reference time signal supplied to each transmitter.

Abstract translation: 中心站和单频网络中的几个发射机同步。 在短时间和长时间范围内以高时间和频率精度生成第一参考时间信号，并且在短时间内以低时间和频率精度生成第二参考时间信号并将其提供给中心站 地平线和高度准确的长时间视野。 具有对应于第二参考时间信号的频率的时间可变数据速率的传输数据流通过中心站产生，所述流被提供给多个发射机，并且包括包含数据的传输时刻的分布式数据分组 参考第二个参考时间信号的数据包，用于发射机。 通过对第二参考信号的时间和频率精度进行平均化来优化每个数据分组的传输时刻的时间精度。 系统时间上偏离每个发射机从中央站接收的传输数据流，直到每个包含传输时刻的传输数据流的数据分组在正确的传输时刻相对于提供给每个发射机的第一参考时间信号 。