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。

公开(公告)号：US20120107184A1

公开(公告)日：2012-05-03

申请号：US13284563

申请日：2011-10-28

申请人： Bolanle A. Asiyanbola ,  Ralph Etienne-Cummings ,  A. Roger Hammons, JR. ,  Akinwale A. Akinpelu ,  Ronald L. Stanford

发明人： Bolanle A. Asiyanbola ,  Ralph Etienne-Cummings ,  A. Roger Hammons, JR. ,  Akinwale A. Akinpelu ,  Ronald L. Stanford

IPC分类号： B01J19/00 ,  B01J19/12 ,  B01J19/28

CPC分类号： A61L2/04 ,  A61L2/10 ,  A61L2/18 ,  A61L2/22 ,  A61L2/24 ,  A61L2202/122 ,  A61L2209/14

摘要： A decontamination apparatus is provided including an enclosure. A first and second decontamination system may be provided within the enclosure. The first and second decontamination systems may be arranged within the enclosure and configured to decontaminate the articles received in the enclosure. The first and second decontamination systems may rely on different methods of decontamination. The enclosure of the decontamination apparatus may be defined by a plurality of connected prefabricated modular walls. A mobile control and supply module may also be provided.

摘要翻译： 提供了一种净化装置，其包括外壳。 第一和第二去污系统可以在外壳内提供。 第一和第二去污系统可以布置在外壳内并且被配置为对容纳在外壳中的物品去污。 第一和第二去污系统可能依赖于不同的去污方法。 净化设备的外壳可以由多个连接的预制模块化壁限定。 还可以提供移动控制和供应模块。

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。

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.

公开(公告)号：US20100260208A1

公开(公告)日：2010-10-14

申请号：US12759329

申请日：2010-04-13

申请人： A. Roger Hammons, JR. ,  Frederic M. Davidson

发明人： A. Roger Hammons, JR. ,  Frederic M. Davidson

IPC分类号： H04J3/06

CPC分类号： H04L7/042 ,  H04L7/0008

摘要： A system and method for calculating and applying a metric that is calculated over a binary interval that corresponds in length to a preamble. The value of the metric reflects the likelihood that the interval is the preamble. A lower value for the metric suggests that the interval is more likely to be the preamble. In an embodiment, the metric is calculated beginning at an initial location in the bitstream, and then recalculated beginning at each of several successive locations in the bitstream. This results in a set of calculated metrics. The start of the preamble is considered likely to be the initial location of the interval that corresponds to the metric having the lowest value.

摘要翻译： 一种用于计算和应用在长度上对应于前导码的二进制间隔上计算的度量的系统和方法。 度量的值反映了间隔是前导码的可能性。 该度量的较低值表明间隔更有可能是前导码。 在一个实施例中，从比特流中的初始位置开始计算度量，然后从位流中的几个连续位置中的每一个开始重新计算。 这导致一组计算的指标。 认为前导码的开始可能是对应于具有最低值的度量的间隔的初始位置。

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。

公开(公告)号：US07483476B2

公开(公告)日：2009-01-27

申请号：US11983590

申请日：2007-11-09

申请人： Hesham El-Gamal ,  A. Roger Hammons, Jr.

发明人： Hesham El-Gamal ,  A. Roger Hammons, Jr.

IPC分类号： H04L27/30

CPC分类号： H04B7/0669 ,  H04L1/04 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0631 ,  H04L1/065

摘要： A communication system for transmitting encoded signals over a communication channel is disclosed. The system includes a transmitter, which has a source that outputs a message signal. The transmitter also includes an encoder that generates a code word in response to the message signal. The code word has a construction that defines a plurality of paths associated with an intersymbol interference (ISI) environment of the communication channel, wherein the code word achieves a diversity based upon the number of transmit antennas and the number of ISI paths. Further, the transmitter includes a modulator that modulates the code word for transmission over the communication channel, and multiple antennas that transmit the modulated code word over the communication channel. The system encompasses a receiver that receives the transmitted code word via a number of receive antennas.

摘要翻译： 公开了一种用于通过通信信道发送编码信号的通信系统。 该系统包括发射机，其具有输出消息信号的源。 发射机还包括响应于消息信号产生码字的编码器。 代码字具有定义与通信信道的符号间干扰（ISI）环境相关联的多个路径的结构，其中码字基于发射天线的数量和ISI路径的数量实现分集。 此外，发射机包括调制器，用于调制通过通信信道传输的码字，以及通过通信信道发送调制码字的多个天线。 该系统包括接收经由多个接收天线发送的码字的接收机。

公开(公告)号：US07346827B2

公开(公告)日：2008-03-18

申请号：US11029734

申请日：2005-01-05

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.

公开(公告)号：US07342875B2

公开(公告)日：2008-03-11

申请号：US10012066

申请日：2001-11-05

申请人： A. Roger Hammons, Jr. ,  Hesham El-Gamal ,  Lin-Nan Lee ,  Stan Kay ,  Andrew MacDonald ,  Jack Rozmaryn ,  Bassel Beidas

发明人： A. Roger Hammons, Jr. ,  Hesham El-Gamal ,  Lin-Nan Lee ,  Stan Kay ,  Andrew MacDonald ,  Jack Rozmaryn ,  Bassel Beidas

IPC分类号： G01R31/08

CPC分类号： H04L27/2602 ,  H04L1/0618

摘要： A communications system includes a base station that is configured to transmit a signal that is modulated according to a predetermined modulation scheme and an orthogonal frequency division multiplexing scheme, wherein the signal is encoded using space-frequency coding. The base station includes a plurality of multiple-input multiple-output (MIMO) transceivers. The system includes a terminal that is configured to receive the modulated signal. The above arrangement is particularly applicable to providing multichannel multipoint distribution services (MMDS) over a radio communications system.

摘要翻译： 通信系统包括：基站，被配置为发送根据预定调制方案和正交频分复用方案调制的信号，其中，使用空频编码来对信号进行编码。 基站包括多个多输入多输出（MIMO）收发器。 该系统包括被配置为接收调制信号的终端。 上述布置特别适用于通过无线电通信系统提供多信道多点分发业务（MMDS）。

公开(公告)号：US06697990B2

公开(公告)日：2004-02-24

申请号：US09734841

申请日：2000-12-13

申请人： Hesham El-Gamal ,  A. Roger Hammons, Jr. ,  Mustafa Eroz

发明人： Hesham El-Gamal ,  A. Roger Hammons, Jr. ,  Mustafa Eroz

IPC分类号： H03M1300

CPC分类号： H04L1/0041 ,  H03M13/2746 ,  H03M13/2771 ,  H03M13/296 ,  H03M13/2987 ,  H03M13/6362 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071

摘要： A method and apparatus for interleaving an input data stream for parsed parallel concatenated code encoding, the method comprising the steps of: parsing the input data stream into a plurality of parsed data substreams; and forming sets of shared information bits, wherein each of the sets of shared information bits comprises information bits in common with respective pairs of the plurality of parsed data substreams. In a variation, a further step comprises constructing constituent permutations of one or more of the sets of shared information bits. In yet a further variation, a further step comprises interlacing respective pairs of the sets of shared information bits to form respective interleaved data substreams.

摘要翻译： 一种用于交织用于解析的并行级联码编码的输入数据流的方法和装置，所述方法包括以下步骤：将所述输入数据流解析成多个解析数据子流; 以及形成共享信息比特组，其中所述共享信息比特组中的每一个包含与所述多个解析数据子流中的相应对共同的信息比特。 在一个变型中，另一步骤包括构成一组或多组共享信息比特的组成置换。 在又一变型中，另一步骤包括交织各组共享信息比特组以形成相应的交错数据子流。