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    Systems and Methods for Tracking Baseline Signals for Touch Detection
    2.
    发明申请
    Systems and Methods for Tracking Baseline Signals for Touch Detection 有权
    跟踪用于触摸检测的基线信号的系统和方法

    公开(公告)号：US20150242054A1

    公开(公告)日：2015-08-27

    申请号：US14628606

    申请日：2015-02-23

    Applicant: Marvell World Trade Ltd.

    Inventor： Kanke Gao ,  Bike Xie ,  Songping Wu

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/0418 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04101

    Abstract: System and methods are provided for tracking baseline signals for touch detection. The system includes: a comparison network configured to determine whether an input baseline signal is within a tracking range; a filter network configured to generate an output baseline signal for touch detection based at least in part on the input baseline signal according to one or more filter parameters; and a signal processing component configured to update the one or more filter parameters based at least in part on the determination of whether the input baseline signal is within the tracking range.

    Abstract translation: 提供系统和方法，用于跟踪触摸检测的基线信号。 该系统包括：比较网络，被配置为确定输入基线信号是否在跟踪范围内; 滤波器网络，被配置为根据一个或多个滤波器参数至少部分地基于输入的基线信号产生用于触摸检测的输出基线信号; 以及信号处理部件，被配置为至少部分地基于所述输入的基线信号是否在所述跟踪范围内的确定来更新所述一个或多个滤波器参数。

    Detection and estimation of radio frequency variations
    3.
    发明授权
    Detection and estimation of radio frequency variations 有权
    射频变化的检测和估计

    公开(公告)号：US08781401B2

    公开(公告)日：2014-07-15

    申请号：US13730420

    申请日：2012-12-28

    Applicant: Marvell World Trade Ltd.

    Inventor： Bhaskar W. Nallapureddy ,  Songping Wu ,  Tsunglun Yu ,  Hui-Ling Lou

    IPC: H04B7/00

    CPC classification number: G01S7/021 ,  G01R23/10

    Abstract: A system including a counting module, a difference module, and a radar module. The counting module counts polarity reversals of samples of a signal. The samples are generated during a first period, a second period, and a third period. The counting module generates a first count, a second count, and a third count of the polarity reversals counted during the respective periods. The difference module determines a first difference between the first count and the second count, a second difference between the second count and the third count, and a third difference between the first difference and the second difference. The radar module determines variation in frequency of the signal based on the first count and the second count, and determines a type of radar present in the signal based on one or more of the third difference and the variation in the frequency of the signal.

    Abstract translation: 一种包括计数模块，差分模块和雷达模块的系统。 计数模块对信号样本的极性反转进行计数。 在第一时段，第二周期和第三周期期间生成样本。 计数模块产生在各个周期期间计数的极性反转的第一计数，第二计数和第三计数。 差分模块确定第一计数和第二计数之间的第一差异，第二计数和第三计数之间的第二差值以及第一差值和第二差值之间的第三差值。 雷达模块基于第一计数和第二计数确定信号的频率变化，并且基于第三差异和信号频率的变化中的一个或多个确定信号中存在的雷达的类型。

    PHY Preamble Format For Wireless Communication System
    4.
    发明申请
    PHY Preamble Format For Wireless Communication System 审中-公开
    无线通信系统的PHY前导格式

    公开(公告)号：US20130136063A1

    公开(公告)日：2013-05-30

    申请号：US13751388

    申请日：2013-01-28

    Applicant: Marvell World Trade Ltd.

    Inventor： Hongyuan Zhang ,  Rohit U. Nabar ,  Songping Wu

    IPC: H04W56/00

    CPC classification number: H04W56/001 ,  H04B1/7073 ,  H04B1/70735 ,  H04B2201/7073 ,  H04J13/0014 ,  H04J13/10 ,  H04L5/0016 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2656 ,  H04L27/2662 ,  H04W56/00

    Abstract: A system and method of extracting data from data packets transmitted over a wireless network includes receiving a data packet having a preamble portion and a payload portion. The preamble portion is cross correlated with a first known spreading sequence to generate a first timing signal and the preamble portion is cross correlated with a second known spreading signal to generate a frame timing signal. An impulse is detected in the first timing signal and a first timing parameter is set based upon the detected impulse in the first timing signal. An impulse is detected in the frame timing signal and a frame timing parameter is set based upon the detected impulse in the frame timing signal. Data is extracted from the received payload portion according to the first timing parameter and the frame timing parameter.

    Abstract translation: 从通过无线网络发送的数据分组中提取数据的系统和方法包括：接收具有前同步码部分和有效载荷部分的数据分组。 前导码部分与第一已知扩展序列交叉相关，以产生第一定时信号，并且前同步码部分与第二已知扩展信号相互相关，以产生帧定时信号。 在第一定时信号中检测到脉冲，并且基于第一定时信号中检测到的脉冲设置第一定时参数。 在帧定时信号中检测到脉冲，并且基于帧定时信号中检测到的脉冲设置帧定时参数。 根据第一定时参数和帧定时参数从接收到的有效载荷部分提取数据。

    Physical layer data unit format
    7.
    发明授权
    Physical layer data unit format 有权
    物理层数据单元格式

    公开(公告)号：US08867569B2

    公开(公告)日：2014-10-21

    申请号：US13888223

    申请日：2013-05-06

    Applicant: Marvell World Trade Ltd.

    Inventor： Hongyuan Zhang ,  Rohit U. Nabar ,  Manyuan Shen ,  Songping Wu ,  Hui-Ling Lou ,  Yong Liu

    IPC: H04J3/00 ,  H04W16/28 ,  H04L25/03 ,  H04L27/26

    CPC classification number: H04W16/28 ,  H04L25/03343 ,  H04L27/2613 ,  H04L2025/03426 ,  H04L2025/03789 ,  H04L2025/03815

    Abstract: A beamforming training (BFT) data unit for transmission via a communication channel in a wireless personal area network is generated, and in particular, is for transmitting beamforming training information. A physical layer header and first BFT data are encoded using block encoding to generate a first block. Second BFT data are encoded using block encoding to generate a second block. The BFT data unit is generated with a fixed-length payload, such that the BFT data unit includes only i) a preamble, ii) the first block, and iii) the second block.

    Abstract translation: 生成用于通过无线个域网中的通信信道传输的波束形成训练（BFT）数据单元，特别是用于发送波束成形训练信息。 使用块编码对物理层报头和第一BFT数据进行编码以生成第一块。 使用块编码对第二BFT数据进行编码以生成第二块。 生成具有固定长度有效载荷的BFT数据单元，使得BFT数据单元仅包括i）前置码，ii）第一块，以及iii）第二块。

    BEAMFORMING BY SECTOR SWEEPING
    8.
    发明申请
    BEAMFORMING BY SECTOR SWEEPING 有权
    通过部门扫描

    公开(公告)号：US20140206304A1

    公开(公告)日：2014-07-24

    申请号：US14222569

    申请日：2014-03-21

    Applicant: MARVELL WORLD TRADE LTD.

    Inventor： Hongyuan Zhang ,  Manyuan Shen ,  Songping Wu ,  Hui-Ling Lou ,  Yong Liu

    IPC: H04B1/04

    CPC classification number: H04B1/04 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0684 ,  H04B7/0695 ,  H04B7/0848 ,  H04B7/086 ,  H04B7/088

    Abstract: A first plurality of training data units are transmitted via a plurality of antennas of a first station as part of a first transmit beamforming training procedure. Subsequently, a second plurality of training data units are received via the plurality of antennas as part of second transmit beamforming procedure while the first station applies a single receive antenna configuration. The second plurality of training data units includes an information element that specifies a feedback from a second station, the feedback including an identifier corresponding to one of the training data units in the first plurality of data units. The first station transmits a feedback message to the second station, that includes (i) one or more indicators of one or more training data units selected from the second plurality of training data units, and (ii) a request to perform a subsequent beamforming training procedure.

    Abstract translation: 作为第一发射波束形成训练程序的一部分，经由第一站的多个天线发送第一多个训练数据单元。 随后，作为第二发射波束形成过程的一部分，经由多个天线接收第二多个训练数据单元，而第一站施加单个接收天线配置。 第二多个训练数据单元包括指定来自第二站的反馈的信息元素，所述反馈包括与第一多个数据单元中的训练数据单元之一相对应的标识符。 第一站向第二站发送反馈消息，其包括（i）从第二多个训练数据单元中选择的一个或多个训练数据单元的一个或多个指示符，以及（ii）执行后续波束形成训练的请求 程序。

    EFFICIENT AND FLEXIBLE TRANSMIT BEAMFORMING SECTOR SWEEP IN A MULTI-ANTENNA COMMUNICATION DEVICE
    9.
    发明申请
    EFFICIENT AND FLEXIBLE TRANSMIT BEAMFORMING SECTOR SWEEP IN A MULTI-ANTENNA COMMUNICATION DEVICE 审中-公开
    在多天线通信设备中的有效和灵活的发射波束波束扫描

    公开(公告)号：US20140112317A1

    公开(公告)日：2014-04-24

    申请号：US14140120

    申请日：2013-12-24

    Applicant: MARVELL WORLD TRADE LTD.

    Inventor： Yong Liu ,  Hongyuan Zhang ,  Songping Wu

    IPC: H04B7/04 ,  H04L12/26

    CPC classification number: H04B7/04 ,  H04B7/0617 ,  H04B7/0632 ,  H04L43/0847 ,  H04W16/28 ,  H04W84/02

    Abstract: A method implemented in a communication device includes receiving a first beamforming training transmission corrupted by a collision, determining a first station to which the first beamforming training transmission corresponds based on the first beamforming training transmission corrupted by the collision, and in response to determining the first station, transmitting a signal to the first station to prompt the first station to transmit a second beamforming training transmission.

    Abstract translation: 在通信设备中实现的方法包括接收由冲突损坏的第一波束成形训练发射，基于由所述冲突损坏的所述第一波束形成训练发射，确定所述第一波束形成训练传输对应的第一台，以及响应于确定所述第一 向第一站发送信号以提示第一站发送第二波束形成训练传输。

    PHYSICAL LAYER DATA UNIT FORMAT
    10.
    发明申请
    PHYSICAL LAYER DATA UNIT FORMAT 有权
    物理层数据单元格式

    公开(公告)号：US20130242968A1

    公开(公告)日：2013-09-19

    申请号：US13888223

    申请日：2013-05-06

    Applicant: MARVELL WORLD TRADE LTD.

    Inventor： Hongyuan Zhang ,  Rohit U. Nabar ,  Manyuan Shen ,  Songping Wu ,  Hui-Ling Lou ,  Yong Liu

    IPC: H04W16/28

    CPC classification number: H04W16/28 ,  H04L25/03343 ,  H04L27/2613 ,  H04L2025/03426 ,  H04L2025/03789 ,  H04L2025/03815

    Abstract: A beamforming training (BFT) data unit for transmission via a communication channel in a wireless personal area network is generated, and in particular, is for transmitting beamforming training information. A physical layer header and first BFT data are encoded using block encoding to generate a first block. Second BFT data are encoded using block encoding to generate a second block. The BFT data unit is generated with a fixed-length payload, such that the BFT data unit includes only i) a preamble, ii) the first block, and iii) the second block.

    Abstract translation: 生成用于通过无线个域网中的通信信道传输的波束形成训练（BFT）数据单元，特别是用于发送波束成形训练信息。 使用块编码对物理层报头和第一BFT数据进行编码以生成第一块。 使用块编码对第二BFT数据进行编码以生成第二块。 生成具有固定长度有效载荷的BFT数据单元，使得BFT数据单元仅包括i）前置码，ii）第一块，以及iii）第二块。

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