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1. 发明授权

US08707373B2 Method and system for providing digital video distribution 有权
标题翻译：提供数字视频分发的方法和系统
公开(公告)号：US08707373B2
公开(公告)日：2014-04-22
申请号：US10843766
申请日：2004-05-12
申请人： Lin-Nan Lee , Mustafa Eroz , Feng-Wen Sun , John Corrigan , Walter Kepley , Kuriacose Joseph , Scott Casavant
发明人： Lin-Nan Lee , Mustafa Eroz , Feng-Wen Sun , John Corrigan , Walter Kepley , Kuriacose Joseph , Scott Casavant
IPC分类号： H04N7/18 , H04N7/173 , H04N7/16
CPC分类号： H04N7/106 , H04N7/20 , H04N21/4181 , H04N21/436 , H04N21/4382 , H04N21/6143 , H04N2007/1739
摘要： An approach is provided for distributing multi-media information from a satellite broadcast system. A hub receives a signal from the satellite broadcast system, wherein the signal represents video information and audio information associated with multiple broadcast channels. The hub centrally demodulates and decodes the received signal for distribution to one of a number of access point devices. According to one embodiment of the present invention, the decoded signal represents uncompressed video and audio information corresponding to one of the broadcast channels. The access point devices convert the received decoded signal for output respective displays (e.g., television sets). The hub can also be equipped with an interface to provide access to a public data network, such as the global Internet. Further, the hub can be supplied with a digital video recording capability.
摘要翻译：提供了一种用于从卫星广播系统分发多媒体信息的方法。集线器从卫星广播系统接收信号，其中信号表示与多个广播信道相关联的视频信息和音频信息。集线器对接收到的信号进行集中解调和解码，以分配到多个接入点设备之一。根据本发明的一个实施例，解码信号表示对应于一个广播信道的未压缩视频和音频信息。接入点设备转换接收到的解码信号以输出相应的显示器（例如，电视机）。集线器还可以配备接口，以提供对公共数据网络的访问，例如全球互联网。此外，集线器可以被提供数字视频记录能力。

2. 发明授权

US08483308B2 Satellite communication system utilizing low density parity check codes 有权
标题翻译：卫星通信系统采用低密度奇偶校验码
公开(公告)号：US08483308B2
公开(公告)日：2013-07-09
申请号：US13408953
申请日：2012-02-29
申请人： Mustafa Eroz , Feng-Wen Sun , Lin-Nan Lee , Dan Fraley
发明人： Mustafa Eroz , Feng-Wen Sun , Lin-Nan Lee , Dan Fraley
IPC分类号： H03K7/06
CPC分类号： H03M13/1137 , H03M13/1165 , H03M13/1515 , H03M13/152 , H03M13/19 , H03M13/255 , H03M13/2906 , H03M13/356 , H03M13/6505 , H04L1/005 , H04L1/0057 , H04L1/007
摘要： An approach for reliably communicating over a satellite in support of a communication service including, for example, as direct broadcast satellite and data service, is disclosed. An input message is encoded, yielding a structured Low Density Parity Check (LDPC) coded message. The coded message is modulated according to a high order modulation scheme that has a signal constellation representing more than two symbols per signaling point—e.g., 8-PSK (Phase Shift Keying) and 16-QAM (Quadrature Amplitude Modulation). The system includes a transmitter configured to propagate the modulated signal over the satellite. The above approach is particularly applicable to bandwidth constrained communication systems requiring high data rates.
摘要翻译：公开了一种用于通过卫星可靠地通信以支持包括例如直接广播卫星和数据服务在内的通信服务的方法。编码输入消息，产生结构化的低密度奇偶校验（LDPC）编码消息。编码消息根据高阶调制方案进行调制，该高阶调制方案具有每个信令点（例如8-PSK（相移键控）和16-QAM（正交幅度调制））多于两个符号的信号星座。该系统包括被配置成通过卫星传播调制信号的发射机。上述方法特别适用于需要高数据速率的带宽受限通信系统。

3. 发明申请

US20120233519A1 METHOD FOR A GENERAL NEAR OPTIMAL TURBO CODE TRELLIS TERMINATION 有权
标题翻译：一般接近最佳涡轮代码TRELLIS终止的方法
公开(公告)号：US20120233519A1
公开(公告)日：2012-09-13
申请号：US13475572
申请日：2012-05-18
申请人： Mustafa Eroz , A. Roger Hammons, JR.
发明人： Mustafa Eroz , A. Roger Hammons, JR.
IPC分类号： H03M13/29 , G06F11/10
CPC分类号： H03M13/6362 , H03M13/2903 , H03M13/2993 , H03M13/2996 , H03M13/4123
摘要： A method of terminating two or more constituent encoders of a turbo encoder employing a turbo code, comprising the steps of: generating tail input bits at each of two or more constituent encoders, including deriving the tail input bits from each of the two or more constituent encoders separately from a contents of shift registers within each of the two or more constituent encoders, after an encoding of information bits by the two or more constituent encoders; puncturing one or more tail output bits such that 1/R output tail bits are transmitted for each of a plurality of trellis branches, wherein R is a turbo code rate employed by the turbo encoder during an information bit transmission. In yet another variation, the step of puncturing the tail output bits further comprises the step of: transmitting, during trellis termination, the tail output bits, only if they are sent from an output branch of one of the two or more constituent encoders that are used during information bit transmission.
摘要翻译：一种终止采用turbo码的turbo编码器的两个或多个组成编码器的方法，包括以下步骤：在两个或更多个组成编码器中的每一个处生成尾部输入位，包括从两个或更多个成分中的每一个导出尾部输入位在两个或多个组成编码器对信息比特进行编码之后，与两个或更多个组成编码器中的每一个中的移位寄存器的内容分开编码; 对一个或多个尾部输出位进行穿孔，使得对于多个网格分支中的每一个发送1 / R个输出尾比特，其中R是在信息比特传输期间由turbo编码器采用的turbo码率。在另一个实施例中，打孔尾部输出位的步骤还包括以下步骤：在网格终止期间，仅在从两个或更多个组成编码器之一的输出分支发送尾部输出位时发送尾部输出位，在信息位传输期间使用。

4. 发明授权

US08144801B2 Satellite communication system utilizing low density parity check codes 有权
标题翻译：卫星通信系统采用低密度奇偶校验码
公开(公告)号：US08144801B2
公开(公告)日：2012-03-27
申请号：US12967894
申请日：2010-12-14
申请人： Mustafa Eroz , Feng-Wen Sun , Lin-Nan Lee , Dan Fraley
发明人： Mustafa Eroz , Feng-Wen Sun , Lin-Nan Lee , Dan Fraley
IPC分类号： H03K7/06
CPC分类号： H03M13/1137 , H03M13/1165 , H03M13/1515 , H03M13/152 , H03M13/19 , H03M13/255 , H03M13/2906 , H03M13/356 , H03M13/6505 , H04L1/005 , H04L1/0057 , H04L1/007
摘要： An approach for reliably communicating over a satellite in support of a communication service including, for example, as direct broadcast satellite and data service, is disclosed. An input message is encoded, yielding a structured Low Density Parity Check (LDPC) coded message. The coded message is modulated according to a high order modulation scheme that has a signal constellation representing more than two symbols per signaling point—e.g., 8-PSK (Phase Shift Keying) and 16-QAM (Quadrature Amplitude Modulation). The system includes a transmitter configured to propagate the modulated signal over the satellite. The above approach is particularly applicable to bandwidth constrained communication systems requiring high data rates.
摘要翻译：公开了一种用于通过卫星可靠地通信以支持包括例如直接广播卫星和数据服务在内的通信服务的方法。对输入消息进行编码，产生结构化的低密度奇偶校验（LDPC）编码消息。编码消息根据高阶调制方案进行调制，该高阶调制方案具有每信令点多个两个符号的信号星座，例如8-PSK（相移键控）和16-QAM（正交幅度调制）。该系统包括被配置成通过卫星传播调制信号的发射机。上述方法特别适用于需要高数据速率的带宽受限通信系统。

5. 发明授权

US07962830B2 Method and system for routing in low density parity check (LDPC) decoders 有权
标题翻译：用于在低密度奇偶校验（LDPC）解码器中路由的方法和系统
公开(公告)号：US07962830B2
公开(公告)日：2011-06-14
申请号：US11710761
申请日：2007-02-26
申请人： Mustafa Eroz , Lin-Nan Lee , Feng-Wen Sun , Bob Cassagnol , Adam Von Ancken
发明人： Mustafa Eroz , Lin-Nan Lee , Feng-Wen Sun , Bob Cassagnol , Adam Von Ancken
IPC分类号： G11C29/00
CPC分类号： H03M13/13 , H03M13/1137 , H03M13/1165 , H03M13/1515 , H03M13/152 , H03M13/255 , H03M13/2906 , H03M13/2927 , H03M13/6306 , H04L1/0041 , H04L1/0057 , H04L1/0071 , H04L27/186 , H04L27/2053
摘要： An approach is provided for decoding a low density parity check (LDPC) coded signal. Edge values associated with a structured parity check matrix used to generate the LDPC coded signal are retrieved from memory. The edge values specify the relationship of bit nodes and check nodes, and are stored within memory according to a predetermined scheme that permits concurrent retrieval of a set of the edge values. A decoded signal corresponding to the LDPC coded signal is output based on the retrieved edge values.
摘要翻译：提供了一种解码低密度奇偶校验（LDPC）编码信号的方法。从存储器检索与用于生成LDPC编码信号的结构化奇偶校验矩阵相关联的边缘值。边缘值指定位节点和校验节点的关系，并且根据允许并发检索一组边缘值的预定方案存储在存储器内。基于检索到的边缘值输出与LDPC编码信号对应的解码信号。

6. 发明授权

US07925963B2 Sets of rate-compatible universal turbo codes nearly optimized over various rates and interleaver sizes 有权
标题翻译：速率兼容的通用turbo码的集合在各种速率和交织器大小上几乎被优化
公开(公告)号：US07925963B2
公开(公告)日：2011-04-12
申请号：US12435237
申请日：2009-05-04
申请人： Mustafa Eroz , A. Roger Hammons, Jr.
发明人： Mustafa Eroz , A. Roger Hammons, Jr.
IPC分类号： H03M13/27
CPC分类号： H03M13/2957 , H03M13/258 , H03M13/6312 , H03M13/6381 , H04L1/005 , H04L1/0066 , H04L1/0069
摘要： A method and apparatus for Turbo encoding uses a set of rate-compatible Turbo Codes optimized at high code rates and derived from a universal constituent code. The Turbo Codes have rate-compatible puncturing patterns.The method comprises: encoding a signal at a first and second encoder using a best rate 1/2 constituent code universal with higher code rates, the first encoder and the second encoder each producing a respective plurality of parity bits for each information bit; puncturing the respective plurality of parity bits at each encoder with a higher rate best puncturing patterns; and puncturing the respective plurality of parity bits at each encoder with a lower rate best puncturing pattern. In a variation, the best rate 1/2 constituent code represents a concatenation of polynomials 1+D2+D3 (octal 13) and 1+D+D3 (octal 15), D a data bit. A Turbo Encoder is provided which has hardware to implement the method.
摘要翻译：用于Turbo编码的方法和装置使用一组以高码率优化并由通用组成码导出的速率兼容Turbo码。 Turbo码具有速率兼容的穿孔模式。该方法包括：使用具有较高码率的通用最佳速率1/2构成码在第一和第二编码器处对信号进行编码，第一编码器和第二编码器为每个信息比特产生相应的多个奇偶校验位; 在每个编码器处以更高速率的最佳穿孔模式对相应的多个奇偶校验位进行穿孔; 以及在每个编码器处以较低速率的最佳打孔图案对相应的多个奇偶校验位进行穿孔。在一个变型中，最佳速率1/2分量代码表示多项式1 + D2 + D3（八进制13）和1 + D + D3（八进制15），D是数据比特的级联。提供了一种具有执行该方法的硬件的Turbo编码器。

7. 发明授权

US07840871B2 Forward error correction scheme for data channels using universal turbo codes 有权
公开(公告)号：US07840871B2
公开(公告)日：2010-11-23
申请号：US12410384
申请日：2009-03-24
申请人： Mustafa Eroz , A. Roger Hammons, Jr.
发明人： Mustafa Eroz , A. Roger Hammons, Jr.
IPC分类号： H03M13/00
CPC分类号： H03M13/2957 , H03M13/036 , H03M13/2789 , H03M13/2903 , H03M13/6362 , H03M13/6381 , H04L1/0066 , H04L1/0069
摘要： A method of providing forward error correction for data services uses a parallel concatenated convolutional code which is a Turbo Code comprising a plurality of eight-state constituent encoders wherein a plurality of data block sizes are used in conjunction with said Turbo Code. A variation uses the method in a cellular radio system. Another variation uses the method in both forward and reverse likes of a cellular radio system.

8. 发明授权

US07673226B2 Method and system for providing short block length low density parity check (LDPC) codes 有权
标题翻译：提供短块长度低密度奇偶校验（LDPC）码的方法和系统
公开(公告)号：US07673226B2
公开(公告)日：2010-03-02
申请号：US11937997
申请日：2007-11-09
申请人： Mustafa Eroz , Feng-Wen Sun , Lin-Nan Lee
发明人： Mustafa Eroz , Feng-Wen Sun , Lin-Nan Lee
IPC分类号： G06F11/00
CPC分类号： H04L1/0065 , H03M13/1137 , H03M13/116 , H03M13/118 , H03M13/152 , H03M13/255 , H03M13/2906 , H04L1/0057 , H04L1/0071
摘要： An approach is provided for generating Low Density Parity Check (LDPC) codes. An LDPC encoder generates a short LDPC code by shortening longer mother codes. The short LDPC code has an outer Bose Chaudhuri Hocquenghem (BCH) code. According to another aspect, for an LDPC code with code rate of ⅗ utilizing 8-PSK (Phase Shift Keying) modulation, an interleaver provides for interleaving bits of the output LDPC code by serially writing data associated with the LDPC code column-wise into a table and reading the data row-wise from right to left. The above approach has particular application in digital video broadcast services over satellite.
摘要翻译：提供了一种用于生成低密度奇偶校验（LDPC）码的方法。 LDPC编码器通过缩短较长的母码产生短的LDPC码。短LDPC码具有外部Bose Chaudhuri Hocquenghem（BCH）码。根据另一方面，对于利用8-PSK（相移键控）调制的码率为an的LDPC码，交织器通过串行地将与LDPC码相关联的数据串行地写入到从右到左逐行阅读数据。上述方法在卫星数字视频广播业务中具有特殊应用。

9. 发明申请

US20090217141A1 SETS OF RATE-COMPATIBLE UNIVERSAL TURBO CODES NEARLY OPTIMIZED OVER VARIOUS RATES AND INTERLEAVER SIZES 有权
标题翻译：通过各种速率和交叉尺寸优化的通用普通涡轮编码设置
公开(公告)号：US20090217141A1
公开(公告)日：2009-08-27
申请号：US12435237
申请日：2009-05-04
申请人： Mustafa Eroz , A. Roger Hammons, JR.
发明人： Mustafa Eroz , A. Roger Hammons, JR.
IPC分类号： H03M13/27 , G06F11/10
CPC分类号： H03M13/2957 , H03M13/258 , H03M13/6312 , H03M13/6381 , H04L1/005 , H04L1/0066 , H04L1/0069
摘要： A method and apparatus for Turbo encoding uses a set of rate-compatible Turbo Codes optimized at high code rates and derived from a universal constituent code. The Turbo Codes have rate-compatible puncturing patterns.The method comprises: encoding a signal at a first and second encoder using a best rate 1/2 constituent code universal with higher code rates, the first encoder and the second encoder each producing a respective plurality of parity bits for each information bit; puncturing the respective plurality of parity bits at each encoder with a higher rate best puncturing patterns; and puncturing the respective plurality of parity bits at each encoder with a lower rate best puncturing pattern. In a variation, the best rate 1/2 constituent code represents a concatenation of polynomials 1+D2+D3 (octal 13) and 1+D+D3 (octal 15), D a data bit. A Turbo Encoder is provided which has hardware to implement the method.
摘要翻译：用于Turbo编码的方法和装置使用一组以高码率优化并由通用组成码导出的速率兼容Turbo码。 Turbo码具有速率兼容的穿孔模式。该方法包括：使用具有较高码率的通用最佳速率1/2构成码在第一和第二编码器处对信号进行编码，第一编码器和第二编码器为每个信息比特产生相应的多个奇偶校验位; 在每个编码器处以更高速率的最佳穿孔模式对相应的多个奇偶校验位进行穿孔; 以及在每个编码器处以较低速率的最佳打孔图案对相应的多个奇偶校验位进行穿孔。在一个变型中，最佳速率1/2分量代码表示多项式1 + D2 + D3（八进制13）和1 + D + D3（八进制15），D是数据比特的级联。提供了一种具有执行该方法的硬件的Turbo编码器。

10. 发明授权

US07562280B2 Code design and implementation improvements for low density parity check codes for wireless routers using 802.11N protocol 有权
标题翻译：使用802.11N协议的无线路由器的低密度奇偶校验码的代码设计和实现改进
公开(公告)号：US07562280B2
公开(公告)日：2009-07-14
申请号：US11222084
申请日：2005-09-08
申请人： Mustafa Eroz , Lin-Nan Lee , Feng-Wen Sun
发明人： Mustafa Eroz , Lin-Nan Lee , Feng-Wen Sun
IPC分类号： H03M13/00
CPC分类号： H04B7/06 , H03M13/1102 , H03M13/255 , H04B7/04 , H04L1/005 , H04L1/0057 , H04L1/0606 , H04L1/0625 , H04L1/0637 , H04L5/0023 , H04L25/03898
摘要： Method and apparatus for implementing LDPC codes in an IEEE 802.11 standard system configured to operate in a Multiple-Input, Multiple-Output (MIMO) schema. A method in accordance with the present invention comprises defining a base LDPC code, having a length equal to an integer number of data carriers in an ODFM symbol, transmitting the base LDPC code over a plurality of sub-carriers, wherein the base code is transmitted at an expected phase on sub-carriers specified by the IEEE 802.11 standard system, and transmitting the base LDPC code on other sub-carriers than those specified by the IEEE 802.11 standard system, wherein the base LDPC code on the other sub-carriers is transmit offset in phase from the base LDPC code on the specified sub-carriers.
摘要翻译： IEEE 802.11标准系统中用于实施LDPC码的方法和装置，其被配置为在多输入多输出（MIMO）模式中操作。根据本发明的方法包括定义具有等于ODFM符号中的整数数据载波的长度的基本LDPC码，在多个子载波上发送基本LDPC码，其中发送基本码在由IEEE 802.11标准系统指定的子载波上的期望阶段，并且在与由IEEE 802.11标准系统指定的那些子载波之外的其他子载波上发送基本LDPC码，其中其他子载波上的基本LDPC码被发送在指定子载波上与基本LDPC码相位偏移。

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