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1. 发明申请

US20060291571A1 Encoders for block-circulant LDPC codes 有权
公开(公告)号：US20060291571A1
公开(公告)日：2006-12-28
申请号：US11166041
申请日：2005-06-24
申请人： Dariush Divsalar , Aliazam Abbasfar , Christopher Jones , Samuel Dolinar , Jeremy Thorpe , Kenneth Andrews , Kung Yao
发明人： Dariush Divsalar , Aliazam Abbasfar , Christopher Jones , Samuel Dolinar , Jeremy Thorpe , Kenneth Andrews , Kung Yao
IPC分类号： H04B14/04
CPC分类号： H03M13/1194 , H03M13/116 , H04L1/0041 , H04L1/0057
摘要： Methods and apparatus to encode message input symbols in accordance with an accumulate-repeat-accumulate code with repetition three or four are disclosed. Block circulant matrices are used. A first method and apparatus make use of the block-circulant structure of the parity check matrix. A second method and apparatus use block-circulant generator matrices.

2. 发明申请

US20060294445A1 ARA type protograph codes 有权
标题翻译： ARA型原型码
公开(公告)号：US20060294445A1
公开(公告)日：2006-12-28
申请号：US11166040
申请日：2005-06-24
申请人： Dariush Divsalar , Aliazam Abbasfar , Christopher Jones , Samuel Dolinar , Jeremy Thorpe , Kenneth Andrews , Kung Yao
发明人： Dariush Divsalar , Aliazam Abbasfar , Christopher Jones , Samuel Dolinar , Jeremy Thorpe , Kenneth Andrews , Kung Yao
IPC分类号： H03M13/05
CPC分类号： H03M13/1197 , H03M13/1194
摘要： An apparatus and method for encoding low-density parity check codes. Together with a repeater, an interleaver and an accumulator, the apparatus comprises a precoder, thus forming accumulate-repeat-accumulate (ARA codes). Protographs representing various types of ARA codes, including AR3A, AR4A and ARJA codes, are described. High performance is obtained when compared to the performance of current repeat-accumulate (RA) or irregular-repeat-accumulate (IRA) codes.
摘要翻译：一种用于编码低密度奇偶校验码的装置和方法。与中继器，交织器和累加器一起，该装置包括预编码器，从而形成累加重复累加（ARA码）。描述代表各种类型的ARA代码的原型，包括AR3A，AR4A和ARJA代码。与当前重复累积（RA）或不规则重复累积（IRA）码的性能相比，获得了高性能。

3. 发明授权

US07499490B2 Encoders for block-circulant LDPC codes 有权
标题翻译：块循环LDPC码编码器
公开(公告)号：US07499490B2
公开(公告)日：2009-03-03
申请号：US11166041
申请日：2005-06-24
申请人： Dariush Divsalar , Aliazam Abbasfar , Christopher R. Jones , Samuel J. Dolinar , Jeremy C. Thorpe , Kenneth S. Andrews , Kung Yao
发明人： Dariush Divsalar , Aliazam Abbasfar , Christopher R. Jones , Samuel J. Dolinar , Jeremy C. Thorpe , Kenneth S. Andrews , Kung Yao
IPC分类号： H04B1/66
CPC分类号： H03M13/1194 , H03M13/116 , H04L1/0041 , H04L1/0057
摘要： Methods and apparatus to encode message input symbols in accordance with an accumulate-repeat-accumulate code with repetition three or four are disclosed. Block circulant matrices are used. A first method and apparatus make use of the block-circulant structure of the parity check matrix. A second method and apparatus use block-circulant generator matrices.
摘要翻译：公开了根据具有重复三或四的累加重复累加码对消息输入符号进行编码的方法和装置。使用块循环矩阵。第一种方法和装置利用奇偶校验矩阵的块循环结构。第二种方法和装置使用块循环发生器矩阵。

4. 发明授权

US07343539B2 ARA type protograph codes 有权
标题翻译： ARA型原型码
公开(公告)号：US07343539B2
公开(公告)日：2008-03-11
申请号：US11166040
申请日：2005-06-24
申请人： Dariush Divsalar , Aliazam Abbasfar , Christopher R. Jones , Samuel J. Dolinar , Jeremy C. Thorpe , Kenneth S. Andrews , Kung Yao
发明人： Dariush Divsalar , Aliazam Abbasfar , Christopher R. Jones , Samuel J. Dolinar , Jeremy C. Thorpe , Kenneth S. Andrews , Kung Yao
IPC分类号： H03M13/29
CPC分类号： H03M13/1197 , H03M13/1194
摘要： An apparatus and method for encoding low-density parity check codes. Together with a repeater, an interleaver and an accumulator, the apparatus comprises a precoder, thus forming accumulate-repeat-accumulate (ARA codes). Protographs representing various types of ARA codes, including AR3A, AR4A and ARJA codes, are described. High performance is obtained when compared to the performance of current repeat-accumulate (RA) or irregular-repeat-accumulate (IRA) codes.
摘要翻译：一种用于编码低密度奇偶校验码的装置和方法。与中继器，交织器和累加器一起，该装置包括预编码器，从而形成累加重复累加（ARA码）。描述代表各种类型的ARA代码的原型，包括AR3A，AR4A和ARJA代码。与当前重复累积（RA）或不规则重复累积（IRA）码的性能相比，获得了高性能。

5. 发明授权

US07770093B2 Serial turbo trellis coded modulation using a serially concatenated coder 有权
标题翻译：使用串行级联编码器进行串行turbo网格编码调制
公开(公告)号：US07770093B2
公开(公告)日：2010-08-03
申请号：US11514295
申请日：2006-08-31
申请人： Dariush Divsalar , Samuel J. Dolinar , Fabrizio Pollara
发明人： Dariush Divsalar , Samuel J. Dolinar , Fabrizio Pollara
IPC分类号： H03M13/03
CPC分类号： H03M13/258 , H03M13/2972
摘要： Serial concatenated trellis coded modulation (SCTCM) includes an outer coder, an interleaver, a recursive inner coder and a mapping element. The outer coder receives data to be coded and produces outer coded data. The interleaver permutes the outer coded data to produce interleaved data. The recursive inner coder codes the interleaved data to produce inner coded data. The mapping element maps the inner coded data to a symbol. The recursive inner coder has a structure which facilitates iterative decoding of the symbols at a decoder system. The recursive inner coder and the mapping element are selected to maximize the effective free Euclidean distance of a trellis coded modulator formed from the recursive inner coder and the mapping element. The decoder system includes a demodulation unit, an inner SISO (soft-input soft-output) decoder, a deinterleaver, an outer SISO decoder, and an interleaver.
摘要翻译：串行级联网格编码调制（SCTCM）包括外部编码器，交织器，递归内部编码器和映射元件。外部编码器接收要编码的数据，并产生外部编码数据。交织器将外部编码数据置换以产生交错数据。递归内部编码器对交织数据进行编码以产生内部编码数据。映射元素将内部编码数据映射到符号。递归内部编码器具有便于在解码器系统处对符号进行迭代解码的结构。选择递归内部编码器和映射元件以最大化由递归内部编码器和映射元件形成的网格编码调制器的有效自由欧几里得距离。解码器系统包括解调单元，内部SISO（软输入软输出）解码器，解交织器，外部SISO解码器和交织器。

6. 发明授权

US07716552B2 Interleaved serial concatenation forming turbo-like codes 有权
标题翻译：交错串联形成涡轮状码
公开(公告)号：US07716552B2
公开(公告)日：2010-05-11
申请号：US11429083
申请日：2006-05-05
申请人： Dariush Divsalar , Robert J. McEliece , Hui Jin , Fabrizio Pollara
发明人： Dariush Divsalar , Robert J. McEliece , Hui Jin , Fabrizio Pollara
IPC分类号： H03M13/29 , H03M13/45
CPC分类号： H03M13/296 , H03M13/1111 , H03M13/2972
摘要： A turbo-like code is formed by repeating the signal, coding it, and interleaving it. A serial concatenated coder is formed of an inner coder and an outer coder separated by an interleaver. The outer coder is a coder which has rate greater than one e.g. a repetition coder. The interleaver rearranges the bits. An outer coder is a rate one coder.
摘要翻译：通过重复信号，对其进行编码并对其进行交织来形成涡轮状代码。串行级联编码器由内部编码器和由交织器分离的外部编码器形成。外部编码器是一种编码器，其速率大于1。重复编码器交织器重新排列位。外部编码器是速率编码器。

7. 发明授权

US5023889A Trellis coded multilevel DPSK system with doppler correction for mobile satellite channels 失效
标题翻译：网格编码多层DPSK系统，用于移动卫星信道的多普勒校正
公开(公告)号：US5023889A
公开(公告)日：1991-06-11
申请号：US200742
申请日：1988-05-31
申请人： Dariush Divsalar , Marvin K. Simon
发明人： Dariush Divsalar , Marvin K. Simon
IPC分类号： H04B7/185 , H04B7/208 , H04L1/00 , H04L27/18
CPC分类号： H04L1/0065 , H04B7/18532 , H04L1/0054 , H04L1/006 , H04L1/0071 , H04L27/186 , H04B7/208
摘要： A trellis coded multilevel differential phase shift keyed mobile communication system. The system of the present invention includes a trellis encoder for translating input signals into trellis codes; a differential encoder for differentially encoding the trellis coded signals; a transmitter for transmitting the differentially encoded trellis coded signals; a receiver for receiving the transmitted signals; a differential demodulator for demodulating the received differentially encoded trellis coded signals; and a trellis decoder for decoding the differentially demodulated signals.
摘要翻译：网格编码多级差分相移键控移动通信系统。本发明的系统包括用于将输入信号转换成格状码的网格编码器; 用于对网格编码信号进行差分编码的差分编码器; 用于发送差分编码网格编码信号的发射机; 用于接收发射信号的接收机; 差分解调器，用于解调所接收的差分编码网格编码信号; 以及用于对差分解调信号进行解码的网格解码器。

8. 发明申请

US20130139024A1 HIGH ORDER MODULATION PROTOGRAPH CODES 有权
标题翻译：高阶调制准则代码
公开(公告)号：US20130139024A1
公开(公告)日：2013-05-30
申请号：US13306316
申请日：2011-11-29
申请人： Thuy V. Nguyen , Aria Nosratinia , Dariush Divsalar
发明人： Thuy V. Nguyen , Aria Nosratinia , Dariush Divsalar
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/05 , G06F11/10 , H03M13/033 , H03M13/116 , H03M13/1168 , H03M13/255 , H03M13/6516 , H04L1/0057
摘要： Digital communication coding methods for designing protograph-based BICM that is general and applies to any modulation. The general coding framework can support not only multiple rates but also adaptive modulation. The method is a two stage lifting approach. In the first stage, an original protograph is lifted to a slightly larger intermediate protograph. The intermediate protograph is then lifted via a circulant matrix to the expected codeword length to form a protograph-based LDPC code.
摘要翻译：用于设计基于原型的BICM的数字通信编码方法，其通用且适用于任何调制。通用编码框架不仅可以支持多个速率，还可以支持自适应调制。该方法是两阶段提升方法。在第一阶段，将原始原版提升到稍大的中间原版。然后将中间原型图通过循环矩阵提升到期望的码字长度，以形成基于原型的LDPC码。

9. 发明申请

US20070127595A1 Reduced complexity coding system using iterative decoding 有权
标题翻译：降低了使用迭代解码的复杂度编码系统
公开(公告)号：US20070127595A1
公开(公告)日：2007-06-07
申请号：US11514288
申请日：2006-08-31
申请人： Marvin Simon , Dariush Divsalar
发明人： Marvin Simon , Dariush Divsalar
IPC分类号： H04L27/20
CPC分类号： H04L1/006 , H04L1/005 , H04L1/0065 , H04L27/186
摘要： A concatenated coding scheme, using an outer coder, interleaver, and the inner coder inherent in an FQPSK signal to form a coded FQPSK signal. The inner coder is modified to enable interative decoding of the outer code.
摘要翻译：使用FQPSK信号固有的外部编码器，交织器和内部编码器的级联编码方案来形成编码的FQPSK信号。内部编码器被修改以允许外部码的交互解码。

10. 发明授权

US09602316B2 Multiple symbol noncoherent soft output detector 有权
公开(公告)号：US09602316B2
公开(公告)日：2017-03-21
申请号：US13414616
申请日：2012-03-07
申请人： Dariush Divsalar , Ramin Sadr
发明人： Dariush Divsalar , Ramin Sadr
IPC分类号： H04L27/06 , H04L25/03
CPC分类号： H04L25/03171
摘要： Multiple symbol noncoherent soft output detectors in accordance with embodiments of the invention are disclosed. In a number of embodiments, the multiple symbol noncoherent soft output detector uses soft metrics based on the Log Likelihood Ratio (LLR) of each symbol to provide information concerning the reliability of each detected symbol. One embodiment of the invention includes a receiver configured to receive and sample a phase modulated input signal, and a multiple symbol noncoherent soft output detector configured to receive the sampled input signal and to generate a soft metric indicative of the reliability of a detected symbol based upon observations over multiple symbols.

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