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。

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

IPC分类号： H04L1/02 ,  H04L7/00 ,  H04L27/28

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。

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。

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。

公开(公告)号：US20080192869A1

公开(公告)日：2008-08-14

申请号：US12106548

申请日：2008-04-21

申请人： Manish Goel ,  David P. Magee ,  Michael T. DiRenzo ,  Michael O. Polley

发明人： Manish Goel ,  David P. Magee ,  Michael T. DiRenzo ,  Michael O. Polley

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。

公开(公告)号：US06618217B2

公开(公告)日：2003-09-09

申请号：US09256467

申请日：1999-02-23

申请人： Mark W. Heaton ,  David P. Magee ,  Michael T. DiRenzo

发明人： Mark W. Heaton ,  David P. Magee ,  Michael T. DiRenzo

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。

公开(公告)号：US06751043B2

公开(公告)日：2004-06-15

申请号：US09998757

申请日：2001-12-03

申请人： David P. Magee ,  Michael T. DiRenzo ,  Mark W. Heaton

发明人： David P. Magee ,  Michael T. DiRenzo ,  Mark W. Heaton

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。

公开(公告)号：US5920066A

公开(公告)日：1999-07-06

申请号：US895019

申请日：1997-07-16

申请人： Michael T. DiRenzo ,  Frank J. Moizio

发明人： Michael T. DiRenzo ,  Frank J. Moizio

IPC分类号： G01J5/48 ,  H04N5/217 ,  H04N5/33 ,  H04N5/365

CPC分类号： H04N5/3651 ,  G01J5/48 ,  H04N5/33

摘要： A system for normalizing an infrared detector has two control loops, each of which includes a thermal source and a command system. Each command system controls the temperature of the associated thermal source. Each command system includes an error signal source for providing an error signal indicative of the difference between a commanded temperature for the thermal source and an actual temperature at the thermal source, and includes a compensator coupled between the error signal source and the thermal source. Each compensator includes a first inverse compensation circuit responsive to the error signal for providing an output, a bandwidth maximizing compensation circuit responsive to the output of the first inverse compensation circuit, and a second inverse compensation circuit responsive to an output of the bandwidth maximizing compensation circuit. The thermal source is responsive to the output of the second inverse compensation circuit.

摘要翻译： 用于使红外检测器归一化的系统具有两个控制回路，每个控制回路包括热源和命令系统。 每个命令系统控制相关热源的温度。 每个指令系统包括用于提供指示热源的指令温度与热源的实际温度之间的差异的误差信号的误差信号源，并且包括耦合在误差信号源和热源之间的补偿器。 每个补偿器包括响应于用于提供输出的误差信号的第一逆补偿电路，响应于第一反相补偿电路的输出的带宽最大化补偿电路，以及响应带宽最大化补偿电路的输出的第二反相补偿电路 。 热源响应于第二反向补偿电路的输出。

公开(公告)号：US06211638B1

公开(公告)日：2001-04-03

申请号：US09049879

申请日：1998-03-27

申请人： Mark W. Heaton ,  Michael K. Masten ,  Michael T. DiRenzo

发明人： Mark W. Heaton ,  Michael K. Masten ,  Michael T. DiRenzo

IPC分类号： G05B1101

CPC分类号： G11B21/025 ,  G05B5/01 ,  G11B5/5552

摘要： A hard disk drive system (10) includes a rotating magnetic disk (13), an arm (16) moved by a voice coil motor (18), and a read/write head (21) movably supported on the arm by a microactuator (22). The read/write head is moved approximately radially of the disk in response to operation of the microactuator or movement of the arm. The microactuator has a nonlinear transfer function. A control system (62) for controlling the microactuator and the voice coil motor includes a control technique (126) having a nonlinear transfer function which is substantially an inverse of the nonlinear transfer function of the microactuator. Control of the microactuator is effected through the control technique, the control technique linearizing the control of the microactuator.

摘要翻译： 硬盘驱动器系统（10）包括旋转磁盘（13），由音圈电动机（18）移动的臂（16）和由微致动器可移动地支撑在臂上的读/写头（21） 22）。 响应于微致动器的操作或臂的移动，读/写头大致沿着盘的径向移动。 微致动器具有非线性传递函数。 用于控制微致动器和音圈电机的控制系统（62）包括具有基本上与微致动器的非线性传递函数相反的非线性传递函数的控制技术（126）。 微型致动器的控制通过控制技术实现，控制技术使微致动器的控制线性化。