利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

162 条记录 (耗时 0.028 秒)

    Two low complexity decoding algorithms for LDPC codes
    1.
    发明授权
    Two low complexity decoding algorithms for LDPC codes 有权
    LDPC码的两种低复杂度解码算法

    公开(公告)号：US08972817B2

    公开(公告)日：2015-03-03

    申请号：US13486077

    申请日：2012-06-01

    申请人： Telex Maglorie Ngatched Nkouatchah ,  Attahiru Sule Alfa ,  Jun Cai

    发明人： Telex Maglorie Ngatched Nkouatchah ,  Attahiru Sule Alfa ,  Jun Cai

    IPC分类号： H03M13/00 ,  G06F11/00 ,  H03M13/11

    CPC分类号： H03M13/6527 ,  H03M13/1117 ,  H03M13/1165 ,  H03M13/6544 ,  H03M13/6577 ,  H03M13/658

    摘要： In the present invention, two improved variants of the reliability-based iterative majority-logic decoding algorithm for regular low-density parity-check (LDPC) codes are presented. The new algorithms are obtained by introducing a different reliability measure for each check-sum of the parity-check matrix, and taking it into account in the computation of the extrinsic information that is used to update the reliability measure of each received bit in each iteration. In contrast to the first algorithm, the second algorithm includes check reliability that changes at each iteration. For the tested random and structured LDPC codes, both algorithms, while requiring very little additional computational complexities, achieve a considerable error performance gain over the standard one. More importantly, for short and medium block length LDPC codes of relatively large column weight, both algorithms outperform or perform just as well as the iterative decoding based on belief propagation (IDBP) with less decoding complexity.

    摘要翻译： 在本发明中，提出了用于常规低密度奇偶校验（LDPC）码的基于可靠性的迭代多数逻辑解码算法的两个改进的变体。 通过对奇偶校验矩阵的每个校验和引入不同的可靠性度量来获得新算法，并且在用于更新每个迭代中每个接收比特的可靠性度量的外在信息的计算中考虑 。 与第一种算法相反，第二种算法包括在每次迭代时改变的校验可靠性。 对于测试的随机和结构化LDPC码，这两种算法在需要非常少的额外的计算复杂性的情况下实现了比标准算法更大的错误性能增益。 更重要的是，对于相对较大的列权重的短和中块长度的LDPC码，两种算法比基于具有较低解码复杂度的置信传播（IDBP）的迭代解码性能优于或执行。

    Two Low Complexity Decoding Algorithms for LDPC Codes
    2.
    发明申请
    Two Low Complexity Decoding Algorithms for LDPC Codes 审中-公开
    LDPC码的两个低复杂度解码算法

    公开(公告)号：US20130055043A1

    公开(公告)日：2013-02-28

    申请号：US13486077

    申请日：2012-06-01

    申请人： Telex Maglorie Ngatched ,  Attahiru Sule Alfa ,  Jun Cai

    发明人： Telex Maglorie Ngatched ,  Attahiru Sule Alfa ,  Jun Cai

    IPC分类号： H03M13/11 ,  G06F11/10

    CPC分类号： H03M13/6527 ,  H03M13/1117 ,  H03M13/1165 ,  H03M13/6544 ,  H03M13/6577 ,  H03M13/658

    摘要： In the present invention, two improved variants of the reliability-based iterative majority-logic decoding algorithm for regular low-density parity-check (LDPC) codes are presented. The new algorithms are obtained by introducing a different reliability measure for each check-sum of the parity-check matrix, and taking it into account in the computation of the extrinsic information that is used to update the reliability measure of each received bit in each iteration. In contrast to the first algorithm, the second algorithm includes check reliability that changes at each iteration. For the tested random and structured LDPC codes, both algorithms, while requiring very little additional computational complexities, achieve a considerable error performance gain over the standard one. More importantly, for short and medium block length LDPC codes of relatively large column weight, both algorithms outperform or perform just as well as the iterative decoding based on belief propagation (IDBP) with less decoding complexity.

    摘要翻译： 在本发明中，提出了用于常规低密度奇偶校验（LDPC）码的基于可靠性的迭代多数逻辑解码算法的两个改进的变体。 通过对奇偶校验矩阵的每个校验和引入不同的可靠性度量来获得新算法，并且在用于更新每个迭代中每个接收比特的可靠性度量的外在信息的计算中考虑 。 与第一种算法相反，第二种算法包括在每次迭代时改变的校验可靠性。 对于测试的随机和结构化LDPC码，这两种算法在需要非常少的额外的计算复杂性的情况下实现了比标准算法更大的错误性能增益。 更重要的是，对于相对较大的列权重的短和中块长度的LDPC码，两种算法比基于具有较低解码复杂度的置信传播（IDBP）的迭代解码性能优于或执行。

    Fuel injector
    4.
    发明授权
    Fuel injector 有权
    喷油器

    公开(公告)号：US09303872B2

    公开(公告)日：2016-04-05

    申请号：US13233127

    申请日：2011-09-15

    申请人： Mark Allan Hadley ,  Jun Cai ,  Lucas John Stoia ,  Geoffrey David Myers ,  Jayaprakash Natarajan

    发明人： Mark Allan Hadley ,  Jun Cai ,  Lucas John Stoia ,  Geoffrey David Myers ,  Jayaprakash Natarajan

    IPC分类号： F23R3/20 ,  F23R3/34

    CPC分类号： F23R3/20 ,  F23R3/346 ,  F23R2900/03341

    摘要： A fuel injector is provided and includes a member defining a flowpath through which a first fluid flows, the flowpath having a cross-section with transverse elongate and short axes, a head defining a plenum storing a supply of a second fluid and a system fluidly coupled to the flowpath and the plenum to inject the second fluid from the plenum and into the flowpath at first and second locations along the elongate axis. The injected second fluid is formed into jets at the first and second locations, the first fluid entrains the jets such that the injected second fluid flows through the flowpath and mixes with the first fluid, and the short axis has a sufficient dimension such that the jets remain spaced from a sidewall of the member.

    摘要翻译： 燃料喷射器被设置并且包括限定第一流体流过的流路的构件，流路具有横向具有横向细长轴线和短轴线的横截面，头部限定储存第二流体供应的气室和流体耦合的系统 到流路和通气室，以将来自气室的第二流体注入到沿着细长轴线的第一和第二位置处的流路中。 注入的第二流体在第一和第二位置处形成为射流，第一流体夹带射流，使得注入的第二流体流过流路并与第一流体混合，并且短轴具有足够的尺寸，使得喷嘴 保持与构件的侧壁间隔开。

    Extremum seeking algorithm in a variable time interval to detect anode pressure sensor stuck failure in a fuel cell system
    5.
    发明授权
    Extremum seeking algorithm in a variable time interval to detect anode pressure sensor stuck failure in a fuel cell system 有权
    极值寻求算法在可变时间间隔内检测燃料电池系统中的阳极压力传感器卡死故障

    公开(公告)号：US09080938B2

    公开(公告)日：2015-07-14

    申请号：US13560352

    申请日：2012-07-27

    申请人： Jun Cai ,  Daniel C. Di Fiore ,  Steven R. Falta ,  Sergio E. Garcia ,  Carol A. Galskoy

    发明人： Jun Cai ,  Daniel C. Di Fiore ,  Steven R. Falta ,  Sergio E. Garcia ,  Carol A. Galskoy

    IPC分类号： G01L27/00 ,  H01M8/04 ,  G01N27/00

    CPC分类号： G01N27/007 ,  H01M8/04 ,  H01M8/0438 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04425 ,  H01M8/04649 ,  H01M8/04664 ,  H01M8/04686 ,  H01M8/04753 ,  Y02E60/50

    摘要： A system and method for detecting an anode pressure sensor failure in a fuel cell system. The system and method include a controller that sets an initial minimum anode pressure sensor value and an initial maximum anode pressure sensor value. The controller determines a desired time interval for sampling anode pressure measurements and determines a total number of samples of anode pressure measurements to be collected by the controller from an anode pressure sensor. The controller also compares a pressure difference between the initial or a measured minimum anode pressure and the initial or a measured maximum anode pressure to a predetermined pressure difference threshold and sets a pressure sensor fault if the pressure difference between the initial or measured minimum anode pressure and the initial or maximum anode pressure is less than the predetermined pressure difference threshold.

    摘要翻译： 一种用于检测燃料电池系统中的阳极压力传感器故障的系统和方法。 该系统和方法包括设置初始最小阳极压力传感器值和初始最大阳极压力传感器值的控制器。 控制器确定用于采样阳极压力测量值的期望时间间隔，并确定由控制器从阳极压力传感器收集的阳极压力测量的样本总数。 控制器还将初始或测量的最小阳极压力与初始或测量的最大阳极压力之间的压力差与预定的压力差阈值进行比较，并设定压力传感器故障，如果初始或测量的最小阳极压力与 初始或最大阳极压力小于预定的压力差阈值。

    EXTREMUM SEEKING ALGORITHM IN A VARIABLE TIME INTERVAL TO DETECT ANODE PRESSURE SENSOR STUCK FAILURE IN A FUEL CELL SYSTEM
    7.
    发明申请
    EXTREMUM SEEKING ALGORITHM IN A VARIABLE TIME INTERVAL TO DETECT ANODE PRESSURE SENSOR STUCK FAILURE IN A FUEL CELL SYSTEM 有权
    检测燃料电池系统中阳极压力传感器故障的可变时间间隔中的极限寻找算法

    公开(公告)号：US20140026633A1

    公开(公告)日：2014-01-30

    申请号：US13560352

    申请日：2012-07-27

    申请人： Jun Cai ,  Daniel C. Di Fiore ,  Steven R. Falta ,  Sergio E. Garcia ,  Carol A. Galskoy

    发明人： Jun Cai ,  Daniel C. Di Fiore ,  Steven R. Falta ,  Sergio E. Garcia ,  Carol A. Galskoy

    IPC分类号： G01L27/00 ,  H01M8/06

    CPC分类号： G01N27/007 ,  H01M8/04 ,  H01M8/0438 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04425 ,  H01M8/04649 ,  H01M8/04664 ,  H01M8/04686 ,  H01M8/04753 ,  Y02E60/50

    摘要： A system and method for detecting an anode pressure sensor failure in a fuel cell system. The system and method include a controller that sets an initial minimum anode pressure sensor value and an initial maximum anode pressure sensor value. The controller determines a desired time interval for sampling anode pressure measurements and determines a total number of samples of anode pressure measurements to be collected by the controller from an anode pressure sensor. The controller also compares a pressure difference between the initial or a measured minimum anode pressure and the initial or a measured maximum anode pressure to a predetermined pressure difference threshold and sets a pressure sensor fault if the pressure difference between the initial or measured minimum anode pressure and the initial or maximum anode pressure is less than the predetermined pressure difference threshold.

    摘要翻译： 一种用于检测燃料电池系统中的阳极压力传感器故障的系统和方法。 该系统和方法包括设置初始最小阳极压力传感器值和初始最大阳极压力传感器值的控制器。 控制器确定用于采样阳极压力测量值的期望时间间隔，并确定由控制器从阳极压力传感器收集的阳极压力测量的样本总数。 控制器还将初始或测量的最小阳极压力与初始或测量的最大阳极压力之间的压力差与预定的压力差阈值进行比较，并设定压力传感器故障，如果初始或测量的最小阳极压力与 初始或最大阳极压力小于预定的压力差阈值。

    Information transfer and receiving method, system, and device
    8.
    发明授权
    Information transfer and receiving method, system, and device 有权
    信息传递和接收方法，系统和设备

    公开(公告)号：US08559819B2

    公开(公告)日：2013-10-15

    申请号：US13096769

    申请日：2011-04-28

    申请人： Kun Li ,  Jun Cai ,  Jianlin Zhou ,  Shimin Zou

    发明人： Kun Li ,  Jun Cai ,  Jianlin Zhou ,  Shimin Zou

    IPC分类号： H04B10/00

    CPC分类号： H04Q11/0067 ,  H04Q2011/0079 ,  H04Q2011/0081

    摘要： The information transfer method includes: determining an indicator of a start bit in a protection time slot or a preamble time slot of a laser, and establishing a communication channel according to the indicator of the start bit; inserting Operation Administration and Maintenance (OAM) information of a Long Reach-Passive Optical Network (LR-PON) device into an upstream frame sent to an Optical Line Terminal (OLT) device by the LR-PON device at a position indicated by the indicator of the start bit, and transporting the upstream frame to the OLT device through the communication channel. Therefore, OAM functions of the LR-PON device are extended, so that the OAM information can be transported by the LR-PON device independently, and OAM characteristics of the LR-PON device are enhanced. For example, PON protection is better supported, and the speed and success ratio of protection switching of a PON system are increased.

    摘要翻译： 信息传送方法包括：确定激光器的保护时隙或前同步码时隙中的起始比特的指示符，以及根据起始比特的指示符建立通信信道; 将长距离无源光网络（LR-PON）设备的操作管理和维护（OAM）信息插入由指示符指示的位置由LR-PON设备发送到光线路终端（OLT）设备的上行帧 的起始位，并且通过通信信道将上行帧传送到OLT设备。 因此，扩展了LR-PON设备的OAM功能，可以独立地通过LR-PON设备传输OAM信息，增强了LR-PON设备的OAM特性。 例如，更好地支持PON保护，提高PON系统保护倒换的速度和成功率。

    High speed, low power consumption, isolated analog CMOS unit
    9.
    发明授权
    High speed, low power consumption, isolated analog CMOS unit 失效
    高速，低功耗，隔离模拟CMOS单元

    公开(公告)号：US08269279B2

    公开(公告)日：2012-09-18

    申请号：US12862163

    申请日：2010-08-24

    申请人： Jun Cai

    发明人： Jun Cai

    IPC分类号： H01L27/01 ,  H01L27/12 ,  H01L31/0392

    CPC分类号： H01L21/823878 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823892 ,  H01L27/0922 ,  H01L29/0847 ,  H01L29/1045 ,  H01L29/1083 ,  H01L29/1087 ,  H01L29/456 ,  H01L29/66659 ,  H01L29/7835

    摘要： A semiconductor device including: a low threshold PMOS device formed over an N-type region, the source and drain of the low threshold PMOS formed in P-regions surrounded by N-regions; a low threshold NMOS device formed in a P-type region, the source and drain of the low threshold NMOS formed in N-regions surrounded by P-regions; first and second substrate bias generators, each connected to one of the low threshold devices for generating a substrate bias; a voltage source for generating substrate bias during a standby mode to reduce leakage current; wherein a low voltage threshold is established by the source and drain regions of the low threshold devices and their respective surrounding regions of opposite polarity.

    摘要翻译： 一种半导体器件，包括：在N型区域上形成的低阈值PMOS器件，由N区域包围的P区域中形成的低阈值PMOS的源极和漏极; 形成在P型区域中的低阈值NMOS器件，由P区域包围的N区域中形成的低阈值NMOS的源极和漏极; 第一和第二衬底偏置发生器，每个发生器连接到低阈值器件之一以产生衬底偏压; 用于在待机模式期间产生衬底偏压以减少泄漏电流的电压源; 其中低电压阈值由低阈值器件的源极和漏极区域及其相应极性的相应周围区域建立。