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1.发明申请Scalable Data Reception Gain Control for a Multiple-Input, Multiple-Output (MIMO) Communications System 审中-公开用于多输入多输出（MIMO）通信系统的可扩展数据接收增益控制公开(公告)号：US20080192869A1
公开(公告)日：2008-08-14
申请号：US12106548
申请日：2008-04-21
IPC分类号： H04L27/08
CPC分类号： H04B7/0413 , H04B7/02 , H04B7/0684
摘要： The present invention provides a concurrent gain generator for use with a MIMO transmitter havi'ng an N of two or more transmit antennas. In one embodiment, the concurrent gain generator includes a first sequence formatter that provides one of the N transmit antennas with a gain training sequence during an initial time interval, and a second sequence formatter that further provides (N−1) remaining transmit antennas with (N−1) additional gain training sequences during the initial time interval to train receive gains. The present invention also provides a non-concurrent gain adjuster for use with a MIMO receiver employing an M of two or more receive antennas. In one embodiment, the non-concurrent gain adjuster includes a gain combiner that computes a common receive gain as a function of M independent receive gains, and a gain applier that applies the common receive gain to receivers associated with the M receive antennas.
摘要翻译： 本发明提供一种并发增益发生器，用于与两个或更多发射天线的N个的MIMO发射机一起使用。 在一个实施例中，并发增益生成器包括第一序列格式化器，其在初始时间间隔期间向N个发送天线之一提供增益训练序列;以及第二序列格式器，其进一步向（N-1）个剩余的发射天线提供（N-1） N-1）在初始时间间隔期间训练接收增益的附加增益训练序列。 本发明还提供了一种与使用两个或更多个接收天线的M的MIMO接收机一起使用的非并发增益调整器。 在一个实施例中，非并发增益调整器包括增益组合器，该增益组合器计算作为M个独立接收增益的函数的公共接收增益;以及增益施加器，其将公共接收增益应用于与M个接收天线相关联的接收机。
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2.发明授权Apparatus and method of detection for a packet-based wireless receiver employing multiple, concurrent transmitted streams 有权采用多个并发传输流的基于分组的无线接收机的检测装置和方法公开(公告)号：US07746962B2
公开(公告)日：2010-06-29
申请号：US10992404
申请日：2004-11-17
申请人： Michael T. DiRenzo , David P. Magee , Manish Goel
发明人： Michael T. DiRenzo , David P. Magee , Manish Goel
IPC分类号： H04L27/06
CPC分类号： H04L7/042 , H04B1/708 , H04B1/7093
摘要： The present invention provides a packet detector for use with a packet-based wireless receiver employing a receive antenna for P concurrently transmitted streams, where P is at least two. In one embodiment, the packet detector includes a correlation unit coupled to the single receive antenna and configured to provide a correlation function based on P acquisition fields corresponding to the P concurrently transmitted streams. Additionally, the packet detector also includes a pseudo-magnitude calculator coupled to the correlation unit and configured to calculate a packet detection metric based on the correlation function.
摘要翻译： 本发明提供了一种与用于P并发传输流的接收天线的基于分组的无线接收机一起使用的分组检测器，其中P是至少两个。 在一个实施例中，分组检测器包括耦合到单个接收天线的相关单元，并且被配置为基于与P个同时发送的流相对应的P采集字段提供相关函数。 另外，分组检测器还包括耦合到相关单元并被配置为基于相关函数计算分组检测度量的伪幅度计算器。
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3.发明授权Method of synchronization for packet based, OFDM wireless systems with multiple receive chains 有权具有多个接收链的基于分组的OFDM无线系统的同步方法公开(公告)号：US07492843B2
公开(公告)日：2009-02-17
申请号：US10974578
申请日：2004-10-27
申请人： Michael T. DiRenzo , David P. Magee , Manish Goel
发明人： Michael T. DiRenzo , David P. Magee , Manish Goel
CPC分类号： H04L7/042 , H04L1/06 , H04L7/10 , H04L27/2662 , H04L27/2675
摘要： A system for synchronizing a wireless receiver is provided. The system includes a first antenna (101a) and a second antenna (101b) to receive wireless signals containing data packets. The system includes one or more analyzer components (156) operable to determine correlation metrics based on at least a portion of the first received signal and a portion of the second received signal. The system further includes a synchronization component (158) operable to use the correlation metrics to determine a preferred correlation metric for synchronization by the wireless receiver of the first and second received signals to decode the data packet. A method for synchronizing a receiver of two wireless signals is also provided.
摘要翻译： 提供了一种用于同步无线接收机的系统。 该系统包括用于接收包含数据分组的无线信号的第一天线（101a）和第二天线（101b）。 系统包括一个或多个分析器组件（156），其可操作以基于第一接收信号的至少一部分和第二接收信号的一部分来确定相关度量。 所述系统还包括同步组件（158），其可操作以使用所述相关度量来确定所述无线接收机对所述第一和第二接收信号进行同步的优选相关度量，以对所述数据分组进行解码。 还提供了一种用于同步两个无线信号的接收机的方法。
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4.发明申请METHOD OF SYNCHRONIZATION FOR PACKET BASED, OFDM WIRELESS SYSTEMS WITH MULTIPLE RECEIVE CHAINS 有权具有多个接收链的基于分组的OFDM无线系统的同步方法公开(公告)号：US20090052433A1
公开(公告)日：2009-02-26
申请号：US12261240
申请日：2008-10-30
申请人： Michael T. DiRenzo , David P. Magee , Manish Goel
发明人： Michael T. DiRenzo , David P. Magee , Manish Goel
IPC分类号： H04J3/06
CPC分类号： H04L7/042 , H04L1/06 , H04L7/10 , H04L27/2662 , H04L27/2675
摘要： A system for synchronizing a wireless receiver is provided. The system includes a first antenna and a second antenna to receive independent wireless signals containing different combination of data packets. The system includes one or more analyzer components operable to determine correlation metrics based on at least a portion of the first received signal and a portion of the second received signal. The system further includes a synchronization component operable to use the correlation metrics to determine a preferred correlation metric for synchronization by the wireless receiver of the first and second received signals to decode the data packet. A method for synchronizing a receiver of two wireless signals is also provided.
摘要翻译： 提供了一种用于同步无线接收机的系统。 该系统包括第一天线和第二天线，用于接收包含不同数据分组组合的独立无线信号。 该系统包括一个或多个分析器组件，其可操作以基于第一接收信号的至少一部分和第二接收信号的一部分来确定相关度量。 所述系统还包括可操作以使用所述相关度量来确定所述无线接收机对所述第一和第二接收信号进行同步的优选相关度量以对所述数据分组进行解码的同步分量。 还提供了一种用于同步两个无线信号的接收机的方法。
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5.发明授权Scalable gain training generator, method of gain training and MIMO communication system employing the generator and method 有权可扩展增益训练发生器，增益训练方法和采用发电机和方法的MIMO通信系统公开(公告)号：US07457369B2
公开(公告)日：2008-11-25
申请号：US11028829
申请日：2005-01-04
申请人： David P. Magee , Michael T. DiRenzo , Manish Goel
发明人： David P. Magee , Michael T. DiRenzo , Manish Goel
IPC分类号： H04B7/02
CPC分类号： H04B7/0697
摘要： The present invention provides a gain training generator for use with a multiple-input, multiple-output (MIMO) transmitter employing N transmit antennas where N is at least two. In one embodiment, the gain training generator includes a fundamental training encoder configured to provide a basic gain training sequence to one of the N transmit antennas during a time interval to produce a basic gain training waveform having a basic peak-to-average ratio (PAR). Additionally, the gain training generator also includes a supplemental training encoder coupled to the fundamental training encoder and configured to further provide (N−1) supplemental gain training sequences to (N−1) remaining transmit antennas, respectively, during the time interval to produce supplemental gain training waveforms wherein each has a supplemental PAR substantially equal to the basic PAR.
摘要翻译： 本发明提供一种增益训练发生器，其用于与N个至少两个的N个发射天线的多输入多输出（MIMO）发射机一起使用。 在一个实施例中，增益训练发生器包括基本训练编码器，其被配置为在时间间隔期间向N个发射天线之一提供基本增益训练序列，以产生具有基本峰均比（PAR）的基本增益训练波形 ）。 另外，增益训练发生器还包括耦合到基本训练编码器的辅助训练编码器，并且被配置为在产生时间间隔内分别向（N-1）个剩余发射天线提供（N-1）个补充增益训练序列 补充增益训练波形，其中每个具有基本上等于基本PAR的补充PAR。
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公开(公告)号：US06618217B2
公开(公告)日：2003-09-09
申请号：US09256467
申请日：1999-02-23
IPC分类号： G11B5596
CPC分类号： G11B5/5552
摘要： A position sensor includes a stationary platform and a moveable platform. The position sensor further includes at least one beam coupling the moveable platform to the stationary platform. The at least one beam includes piezoresistive material that is positioned tolprovide an indication of a movement of the moveable platform relative to the stationary platform.
摘要翻译： 位置传感器包括固定平台和可移动平台。 位置传感器还包括将可移动平台联接到固定平台的至少一个梁。 所述至少一个梁包括压阻材料，其被定位成提供可移动平台相对于固定平台的运动的指示。
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7.发明授权Scalable time-switched preamble supplement generator, method of generating and multiple-input, multiple-output communication system employing the generator and method 有权可扩展时间切换前导码补充生成器，生成和多输入方法，采用发生器和方法的多输出通信系统公开(公告)号：US07382832B2
公开(公告)日：2008-06-03
申请号：US10903668
申请日：2004-07-30
CPC分类号： H04B7/04 , H04B7/0669 , H04B7/0671
摘要： The present invention provides a time-switched preamble supplement generator for use with a multiple-input, multiple-output (MIMO) transmitter employing N transmit antennas wherein N is at least two. In one embodiment, the time-switched preamble supplement generator includes an initial preamble supplement formatter configured to provide a first permutation of a set of preamble supplements to the N transmit antennas during an initial time interval. The first permutation includes a single first preamble supplement and at least one second preamble supplement. The time-switched preamble supplement generator also includes a subsequent preamble supplement formatter coupled to the initial preamble supplement formatter and configured to provide (N−1) mutually exclusive further permutations of the set to the N transmit antennas during (N−1) subsequent time intervals.
摘要翻译： 本发明提供了一种与使用N个发射天线的多输入多输出（MIMO）发射机一起使用的时间切换前导码补充生成器，其中N是至少两个。 在一个实施例中，时间切换前导码补充生成器包括初始前导码补充格式化器，被配置为在初始时间间隔期间向N个发射天线提供一组前导码补充的第一置换。 第一排列包括单个第一前序补码和至少一个第二前序补码。 所述时间切换前导码补充生成器还包括后续前导码补充格式化器，其耦合到所述初始前导码补充格式器，并且被配置为在（N-1）个后续时间期间向所述N个发射天线提供所述集合的（N-1）个互斥另外的排列 间隔
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8.发明授权Digital servo control system for a hard disc drive using a voice coil motor in voltage mode 有权数字伺服控制系统，用于在电压模式下使用音圈电机的硬盘驱动器公开(公告)号：US06751043B2
公开(公告)日：2004-06-15
申请号：US09998757
申请日：2001-12-03
IPC分类号： G11B5596
CPC分类号： G11B21/085 , G11B5/5521 , G11B5/596 , G11B5/59605 , G11B21/081
摘要： This invention comprises an architecture for voltage mode control of a voice coil motor in a hard disk drive. In contrast to conventional current mode control, coil current is not sensed or measured, which simplifies the feedback design with less hardware required in the implementation. Common design methodologies for the square root velocity profile, linear velocity profile and regulator/estimator control system designs can be migrated from the current mode architecture to the voltage mode architecture.
摘要翻译： 本发明包括用于硬盘驱动器中的音圈电机的电压模式控制的架构。 与常规电流模式控制相反，线圈电流不被感测或测量，这在实现中需要更少的硬件来简化反馈设计。 平方根速度分布，线速度分布和调节器/估计器控制系统设计的通用设计方法可以从当前模式架构迁移到电压模式架构。
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9.发明授权Method of synchronization for packet based, OFDM wireless systems with multiple receive chains 有权具有多个接收链的基于分组的OFDM无线系统的同步方法公开(公告)号：US08306167B2
公开(公告)日：2012-11-06
申请号：US12261240
申请日：2008-10-30
申请人： Michael D. Direnzo , David P. Magee , Manish Goel
发明人： Michael D. Direnzo , David P. Magee , Manish Goel
CPC分类号： H04L7/042 , H04L1/06 , H04L7/10 , H04L27/2662 , H04L27/2675
摘要： A system for synchronizing a wireless receiver is provided. The system includes a first antenna and a second antenna to receive independent wireless signals containing different combination of data packets. The system includes one or more analyzer components operable to determine correlation metrics based on at least a portion of the first received signal and a portion of the second received signal. The system further includes a synchronization component operable to use the correlation metrics to determine a preferred correlation metric for synchronization by the wireless receiver of the first and second received signals to decode the data packet. A method for synchronizing a receiver of two wireless signals is also provided.
摘要翻译： 提供了一种用于同步无线接收机的系统。 该系统包括第一天线和第二天线，用于接收包含不同数据分组组合的独立无线信号。 该系统包括一个或多个分析器组件，其可操作以基于第一接收信号的至少一部分和第二接收信号的一部分来确定相关度量。 所述系统还包括可操作以使用所述相关度量来确定所述无线接收机对所述第一和第二接收信号进行同步的优选相关度量以对所述数据分组进行解码的同步分量。 还提供了一种用于同步两个无线信号的接收机的方法。
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10.发明授权公开(公告)号：US07187734B2
公开(公告)日：2007-03-06
申请号：US10438243
申请日：2003-05-14
申请人： David P. Magee , Srinath Hosur , Manish Goel
发明人： David P. Magee , Srinath Hosur , Manish Goel
CPC分类号： H04L27/2662 , H04L27/261 , H04L27/2659 , H04L27/2675
摘要： A method of correctly estimating the frequency offset when the CPE modem has already acquired and is tracking the OFDM burst boundaries in an OFDM-based, wireless communication system. CPS data in an OFDM-based, wireless communication system is modulated as QPSK data in the training tones of the data burst. As long as some bursts have the CPS data modulation and some bursts do not have the CPS data modulation, the CPS data can be recovered. A slip results when there is a linear phase difference across the tones (after the FFT) between the current and the previous burst. This linear phase difference is generally taken care of by the channel estimation obtained using the pilot tones. This phase difference is however, now compensated for correct frequency offset estimation which occurs before the channel estimation and CPS decoding steps.
摘要翻译： 一种在CPE调制解调器已经获取并正在跟踪基于OFDM的无线通信系统中的OFDM突发边界时正确估计频率偏移的方法。 基于OFDM的无线通信系统中的CPS数据被调制为数据突发的训练音调中的QPSK数据。 只要某些突发具有CPS数据调制，并且一些突发没有CPS数据调制，则可以恢复CPS数据。 当当前和前一个脉冲串之间的音调（在FFT之后）存在线性相位差时，会产生滑动。 这种线性相位差通常由使用导频音获得的信道估计来处理。 然而，该相位差现在被补偿在信道估计和CPS解码步骤之前发生的正确的频率偏移估计。
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