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1. 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。

2. 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。

3. 发明授权

US08239746B2 Rate-compatible protograph LDPC code families with linear minimum distance 有权
标题翻译：具有线性最小距离的速率兼容原型LDPC码系列
公开(公告)号：US08239746B2
公开(公告)日：2012-08-07
申请号：US13341648
申请日：2011-12-30
申请人： Dariush Divsalar , Samuel J. Dolinar, Jr. , Christopher R. Jones
发明人： Dariush Divsalar , Samuel J. Dolinar, Jr. , Christopher R. Jones
IPC分类号： H03M13/13 , H03M13/00
CPC分类号： H04L1/0057 , H03M13/03 , H03M13/033 , H03M13/116 , H03M13/6362 , H03M13/6393
摘要： Digital communication coding methods are shown, which generate certain types of low-density parity-check (LDPC) codes built from protographs. A first method creates protographs having the linear minimum distance property and comprising at least one variable node with degree less than 3. A second method creates families of protographs of different rates, all structurally identical for all rates except for a rate-dependent designation of certain variable nodes as transmitted or non-transmitted. A third method creates families of protographs of different rates, all structurally identical for all rates except for a rate-dependent designation of the status of certain variable nodes as non-transmitted or set to zero. LDPC codes built from the protographs created by these methods can simultaneously have low error floors and low iterative decoding thresholds.
摘要翻译：示出了数字通信编码方法，其生成由原始图形构建的某些类型的低密度奇偶校验（LDPC）码。第一种方法创建具有线性最小距离属性并具有至少一个度数小于3的至少一个可变节点的原始图。第二种方法创建不同速率的原型系列，在所有速率的结构上都是相同的，除了特定的速率依赖指定可变节点作为发送或未发送。第三种方法创建不同速率的原型系列，所有速率的结构相同，除了某些变量节点的状态的速率依赖性指定为未发送或设置为零。由这些方法创建的原型图构建的LDPC码可以同时具有低错误层和低迭代解码阈值。

4. 发明授权

US08117523B2 Rate-compatible protograph LDPC code families with linear minimum distance 有权
标题翻译：具有线性最小距离的速率兼容原型LDPC码系列
公开(公告)号：US08117523B2
公开(公告)日：2012-02-14
申请号：US12125862
申请日：2008-05-22
申请人： Dariush Divsalar , Samuel J Dolinar, Jr. , Christopher R. Jones
发明人： Dariush Divsalar , Samuel J Dolinar, Jr. , Christopher R. Jones
IPC分类号： H03M13/13 , H03M13/00
CPC分类号： H04L1/0057 , H03M13/03 , H03M13/033 , H03M13/116 , H03M13/6362 , H03M13/6393
摘要： Digital communication coding methods are shown, which generate certain types of low-density parity-check (LDPC) codes built from protographs. A first method creates protographs having the linear minimum distance property and comprising at least one variable node with degree less than 3. A second method creates families of protographs of different rates, all having the linear minimum distance property, and structurally identical for all rates except for a rate-dependent designation of certain variable nodes as transmitted or non-transmitted. A third method creates families of protographs of different rates, all having the linear minimum distance property, and structurally identical for all rates except for a rate-dependent designation of the status of certain variable nodes as non-transmitted or set to zero. LDPC codes built from the protographs created by these methods can simultaneously have low error floors and low iterative decoding thresholds, and families of such codes of different rates can be decoded efficiently using a common decoding architecture.
摘要翻译：示出了数字通信编码方法，其生成由原始图形构建的某些类型的低密度奇偶校验（LDPC）码。第一种方法创建具有线性最小距离属性的原始图，并且包含至少一个度数小于3的可变节点。第二种方法创建不同速率的原型系列，全部具有线性最小距离属性，并且对于所有速率在结构上相同，用于某些可变节点的速率依赖性指定，如发送或未发送。第三种方法创建不同速率的原型系列，所有族都具有线性最小距离属性，并且对于所有速率的结构相同，除了某些可变节点的状态的速率依赖性指定为未发送或设置为零。由这些方法创建的原型图构建的LDPC码可以同时具有低误差底层和低迭代解码阈值，并且可以使用公共解码架构有效地解码不同速率的这种码的族。

5. 发明授权

US08483080B2 Robust techniques for upstream communication between subscriber stations and a base station 有权
标题翻译：用于用户站和基站之间的上行通信的鲁棒技术
公开(公告)号：US08483080B2
公开(公告)日：2013-07-09
申请号：US12899302
申请日：2010-10-06
申请人： Thomas J. Quigley , Jonathan S. Min , Lisa V. Denney , Henry Samueli , Sean F. Nazareth , Feng Chen , Fang Lu , Christopher R. Jones
发明人： Thomas J. Quigley , Jonathan S. Min , Lisa V. Denney , Henry Samueli , Sean F. Nazareth , Feng Chen , Fang Lu , Christopher R. Jones
IPC分类号： H04J1/16
CPC分类号： H04L41/142 , H04B1/1027 , H04B1/1036 , H04J3/0655 , H04J3/0682 , H04L1/0003 , H04L1/0009 , H04L1/0045 , H04L1/0061 , H04L1/203 , H04L5/003 , H04L5/1446 , H04L12/2801 , H04L25/03019 , H04L25/03057 , H04L25/03343 , H04L27/0014 , H04L27/2601 , H04L27/34 , H04L2025/03808 , H04W72/085 , Y02D50/10
摘要： A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.
摘要翻译：提供了用于增强在基站与位于距离基站不同距离的多个用户站之间传送数据的通信系统的性能的许多特征。用户站的功率传输级别，时隙定时和均衡由测距过程来设置。数据由用户站以分段形式传输。采取各种措施使得用户站的传输稳健。控制上行链路数据传输以允许来自订户站的多次接入。

6. 发明授权

US08265175B2 Methods and apparatuses for signaling with geometric constellations 有权
标题翻译：用几何星座发信号的方法和装置
公开(公告)号：US08265175B2
公开(公告)日：2012-09-11
申请号：US12650532
申请日：2009-12-30
申请人： Maged F. Barsoum , Christopher R. Jones
发明人： Maged F. Barsoum , Christopher R. Jones
IPC分类号： H04L27/00 , H04L27/34
CPC分类号： H04L27/3405 , A61B6/12 , A61B6/503 , A61B6/5235 , A61B6/5264 , A61B6/527 , A61B34/20 , A61B2017/00703 , A61B2034/2051 , A61B2090/376 , A61B2090/3983 , G06T7/33 , G06T2207/10121 , G06T2207/30021 , G06T2207/30048 , H04B14/023 , H04L1/0003 , H04L1/0009
摘要： Communication systems are described that use signal constellations, which have unequally spaced (i.e. ‘geometrically’ shaped) points. In many embodiments, the communication systems use specific geometric constellations that are capacity optimized at a specific SNR. In addition, ranges within which the constellation points of a capacity optimized constellation can be perturbed and are still likely to achieve a given percentage of the optimal capacity increase compared to a constellation that maximizes dmin, are also described. Capacity measures that are used in the selection of the location of constellation points include, but are not limited to, parallel decode (PD) capacity and joint capacity.
摘要翻译：描述了使用具有不等间隔（即“几何”形状）点的信号星座的通信系统。在许多实施例中，通信系统使用在特定SNR下容量优化的特定几何星座。此外，还描述了与最大化dmin的星座相比，容量优化星座的星座点可以被扰动并且仍然可能实现与最大dmin的星座相比最佳容量增加的给定百分比的范围。用于选择星座点位置的容量测量包括但不限于并行解码（PD）容量和联合容量。

7. 发明授权

US07715503B2 Parallel concatenated code with soft-in soft-out interactive turbo decoder 有权
标题翻译：并行级联代码与软入软交互式turbo解码器
公开(公告)号：US07715503B2
公开(公告)日：2010-05-11
申请号：US12534604
申请日：2009-08-03
申请人： Kelly B. Cameron , Hau Thien Tran , Ba-Zhong Shen , Christopher R. Jones
发明人： Kelly B. Cameron , Hau Thien Tran , Ba-Zhong Shen , Christopher R. Jones
IPC分类号： H04L5/12 , H04L23/02
CPC分类号： H03M13/3972 , H03M13/151 , H03M13/1515 , H03M13/25 , H03M13/258 , H03M13/27 , H03M13/2757 , H03M13/29 , H03M13/2966 , H03M13/2978 , H03M13/3905 , H03M13/3922 , H03M13/3927 , H03M13/3988 , H03M13/4107 , H03M13/6505 , H03M13/6561 , H04L1/0041 , H04L1/005 , H04L1/006 , H04L1/0065 , H04L1/0066 , H04L1/0068 , H04L1/0071
摘要： A method for parallel concatenated (Turbo) encoding and decoding. Turbo encoders receive a sequence of input data tuples and encode them. The input sequence may correspond to a sequence of an original data source, or to an already coded data sequence such as provided by a Reed-Solomon encoder. A turbo encoder generally comprises two or more encoders separated by one or more interleavers. The input data tuples may be interleaved using a modulo scheme in which the interleaving is according to some method (such as block or random interleaving) with the added stipulation that the input tuples may be interleaved only to interleaved positions having the same modulo-N (where N is an integer) as they have in the input data sequence. If all the input tuples are encoded by all encoders then output tuples can be chosen sequentially from the encoders and no tuples will be missed. If the input tuples comprise multiple bits, the bits may be interleaved independently to interleaved positions having the same modulo-N and the same bit position. This may improve the robustness of the code. A first encoder may have no interleaver or all encoders may have interleavers, whether the input tuple bits are interleaved independently or not. Modulo type interleaving also allows decoding in parallel.
摘要翻译：一种并行级联（Turbo）编码和解码的方法。 Turbo编码器接收一系列输入数据元组并进行编码。输入序列可以对应于原始数据源的序列，或者对应于已由Reed-Solomon编码器提供的已经编码的数据序列。 turbo编码器通常包括由一个或多个交织器分离的两个或更多个编码器。输入数据元组可以使用其中交织根据某些方法（例如块或随机交织）的加法规则进行交织，其中输入元组可以只交织到具有相同模N的交织位置其中N是整数），因为它们在输入数据序列中具有。如果所有的输入元组都是由所有的编码器编码的，那么输出元组可以从编码器顺序选择，也不会丢失元组。如果输入元组包含多个比特，那么这些比特可以与具有相同模N和相同比特位置的交织位置独立交织。这可以提高代码的鲁棒性。第一编码器可以不具有交织器，或者所有编码器可以具有交织器，无论输入元组位是否独立交错。模式类型交织也允许并行解码。

8. 发明申请

US20090129529A1 Shipping Container for Shipping Channeled Fuel Bundles 有权
标题翻译：船用集装箱航运燃料束
公开(公告)号：US20090129529A1
公开(公告)日：2009-05-21
申请号：US11940434
申请日：2007-11-15
申请人： David Francis Wazybok , David Grey Smith , Andrew Langston , William Williams , James Michael Downs , Christopher R. Jones
发明人： David Francis Wazybok , David Grey Smith , Andrew Langston , William Williams , James Michael Downs , Christopher R. Jones
IPC分类号： G21C19/07
CPC分类号： G21F5/012 , G21F5/08
摘要： A shipping container is constructed for shipping channeled fuel bundle assemblies. The shipping container includes an outer container, an inner container sized to fit within the outer container, and shock absorbing material disposed at least between the outer and inner containers. The inner container is shaped to house at least one pre-channeled fuel bundle assembly including a channel, a channel fastener, and an array of fuel rods supported by grid spacers between an upper tie plate and a lower tie plate. The inner container includes a lower tie plate restraint device shaped to receive the lower tie plate and a lower portion of the channel, and an upper tie plate restraint device shaped to receive the upper tie plate and an upper portion of the channel and channel fastener assembly. The lower and upper tie plate restraint devices are lockable within the inner shipping container.
摘要翻译：建造一个运输集装箱用于运输通道燃料束组件。运输容器包括外容器，尺寸适合装配在外容器内的容器以及至少设置在外容器和内容器之间的减震材料。内部容器成形为容纳至少一个预通道燃料束组件，其包括通道，通道紧固件和由上连接板和下连接板之间的格栅间隔件支撑的燃料棒阵列。内部容器包括形成为容纳下连接板和通道的下部的下拉杆限制装置，以及成形为容纳上连接板和通道和通道紧固件组件的上部的上连接板约束装置。下部和上部连接板约束装置可锁定在内部运输容器内。

9. 发明申请

US20090122925A1 Viterbi slicer for turbo codes 有权
标题翻译：涡轮代码维特比切片机
公开(公告)号：US20090122925A1
公开(公告)日：2009-05-14
申请号：US12358362
申请日：2009-01-23
申请人： Steven T. Jaffe , Kelly B. Cameron , Christopher R. Jones
发明人： Steven T. Jaffe , Kelly B. Cameron , Christopher R. Jones
IPC分类号： H04L27/06
CPC分类号： H04L1/0066 , H04L1/005 , H04L1/0054 , H04L2027/0028 , H04L2027/0055
摘要： A method for synchronizing receivers that receive turbo encoded signals to a received signal. Turbo encoding may enable signals to be decoded at a much lower signal to noise ratio than previously practical. A traditional method of synchronizing a receiver to an incoming signal is to use a slicer to determine a received symbol and then to compare the determined symbol to the incoming waveform, in order to adjust the phase of the slicer with respect to the incoming signal. At signal low levels, at which turbo encoded signals may be decoded, this slicing method may be prone to errors that may disrupt the synchronization of the receiver to the incoming signal. By replacing the slicer by a Viterbi decoder with zero traceback (i.e., one which does not consider future values of the signal only past values) a prediction as to what the incoming signal is can be made. Because the Viterbi decoder can consider past signal values it can predict the present symbol being received with higher reliability than by using a slicer, which considers only the present value of the incoming signal.
摘要翻译：一种用于将接收turbo编码信号的接收机同步到接收信号的方法。 Turbo编码可以使信号以比以前实际的低得多的信噪比进行解码。将接收机同步到传入信号的传统方法是使用限幅器来确定接收到的符号，然后将确定的符号与输入波形进行比较，以便相对于输入信号调节限幅器的相位。在信号低电平处，可以对Turbo编码信号进行解码，该分片方法可能容易出现可能中断接收机与输入信号的同步的错误。通过用零回溯的维特比解码器（即，不将信号的未来值仅仅考虑过去的值）来替换限幅器，可以对可以进行什么输入信号进行预测。因为维特比解码器可以考虑过去的信号值，所以它可以比使用仅考虑输入信号的当前值的限幅器更可靠地预测接收到的当前码元。

10. 发明申请

US20090114292A1 Valve assembly 有权
标题翻译：阀组件
公开(公告)号：US20090114292A1
公开(公告)日：2009-05-07
申请号：US11981876
申请日：2007-11-01
申请人： Scott F. Shafer , Christopher R. Jones
发明人： Scott F. Shafer , Christopher R. Jones
IPC分类号： F16K15/00
CPC分类号： F04B53/102 , F02B3/06 , F02M59/466 , F02M63/0031 , F02M63/0071 , F02M63/0078 , F04B1/04 , F04B53/1022 , F05C2201/0406 , F05C2201/0412 , F05C2201/046 , F05C2203/08 , F05C2203/0808 , F05C2203/0813 , F05C2203/0817 , F05C2203/0826 , F05C2203/083 , F05C2203/0847 , F05C2203/0852 , F05C2203/0895 , Y10T137/7838
摘要： Although modern diesel fuel formulations are intended to reduce emissions of diesel engines, at least some of those modern fuels tend to have relatively low lubricity levels. The control valve assemblies described herein help to minimize any increased wear that would otherwise result from the use of such low lubricity fuels by providing a valve element, a valve guide, and an insert. The valve element is received within the valve guide and is moveable between an open position and a closed position. The insert forms a first sealed interface and a second sealed interface with the valve element and the valve guide. When the valve element is in the closed position, both of the first sealed interface and the second sealed interface are engaged. When the valve element is in the open position, only one of the first sealed interface and the second sealed interface is engaged.
摘要翻译：虽然现代柴油燃料配方旨在减少柴油发动机的排放，但至少有些现代燃料往往具有较低的润滑性水平。这里描述的控制阀组件有助于最小化否则通过提供阀元件，阀引导件和插入件而由使用这种低润滑性燃料而导致的任何增加的磨损。阀元件容纳在阀引导件内并且能够在打开位置和关闭位置之间移动。插入件与阀元件和阀引导件形成第一密封界面和第二密封界面。当阀元件处于关闭位置时，第一密封界面和第二密封界面都被接合。当阀元件处于打开位置时，第一密封界面和第二密封界面中只有一个接合。

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