公开(公告)号：US06262659B1

公开(公告)日：2001-07-17

申请号：US09260707

申请日：1999-03-02

申请人： Richard August Korkosz ,  William Robert McKinney, Sr. ,  Bruce Gunther Schings ,  John Anderson Fergus Ross ,  Naofal Mohammed Wassel Al-Dhahir ,  Harold Woodruff Tomlinson ,  Charles McDonald Puckette ,  John Erik Hershey

发明人： Richard August Korkosz ,  William Robert McKinney, Sr. ,  Bruce Gunther Schings ,  John Anderson Fergus Ross ,  Naofal Mohammed Wassel Al-Dhahir ,  Harold Woodruff Tomlinson ,  Charles McDonald Puckette ,  John Erik Hershey

IPC分类号： G08B108

CPC分类号： H01Q3/2605 ,  G08C15/12 ,  G08C17/02 ,  G16H40/40 ,  H01Q1/241 ,  H01Q1/246 ,  H01Q1/28 ,  H01Q1/32 ,  H01Q1/3233 ,  H04B7/18506

摘要： A telemeter for telemetry of diagnostic messages from a mobile asset to a remote station comprises a processor coupled to the output of one or more condition sensors. The processor converts the output of the condition sensors to a diagnostic message, and provides the diagnostic message at a processor output. A transmitter is coupled to the processor output. The transmitter is adapted to transmit the diagnostic messages in the Industrial, Scientific, Medical (ISM) frequency band. An exemplary embodiment of a telemetry system of the invention comprises a telemeter adapted to transmit diagnostic messages in the ISM frequency band, and a remote station including a receiver for receiving the diagnostic messages in the ISM band.

摘要翻译： 用于从移动资产到远程站的诊断信息遥测的遥测器包括耦合到一个或多个状态传感器的输出的处理器。 处理器将条件传感器的输出转换为诊断消息，并在处理器输出端提供诊断消息。 发射机耦合到处理器输出。 发射机适用于在工业，科学，医疗（ISM）频段发送诊断信息。 本发明的遥测系统的示例性实施例包括适于在ISM频带中发送诊断消息的远程计量器，以及包括用于在ISM频带中接收诊断消息的接收机的远程站。

公开(公告)号：US6154155A

公开(公告)日：2000-11-28

申请号：US263579

申请日：1999-03-08

申请人： John Erik Hershey ,  Namita Joshi ,  Mark Lewis Grabb ,  John Anderson Fergus Ross ,  Thomas Gerard Nowak ,  Vincent Paul Staudinger

发明人： John Erik Hershey ,  Namita Joshi ,  Mark Lewis Grabb ,  John Anderson Fergus Ross ,  Thomas Gerard Nowak ,  Vincent Paul Staudinger

IPC分类号： H03M7/30 ,  H03M7/40 ,  H03M7/46

CPC分类号： H03M7/46 ,  H03M7/30 ,  H03M7/40

摘要： A method of coding and compressing telemetry data makes use of the fact that the telemetry frames are typically highly correlated at a distance, .delta., corresponding to commutation or data periodicities. The existence of such periodicity is used to render a portion of each frame to zeros. The next steps are to search for and remove correlations between the bits in a set of frames, denoted {F.sub.i *}. The compression algorithm implementing the method according to the invention has four sub-steps; Data preconditioning, Compression and coding of first frame, F.sub.1, Compression and coding of frames 2-.delta., F.sub.1 -F.sub..delta., and Compression and coding of F.sub..delta.+1 and on, the steady-state mode.

摘要翻译： 一种编码和压缩遥测数据的方法利用遥测帧通常在与换向或数据周期性相对应的距离，delta处高度相关的事实。 这种周期性的存在被用于将每个帧的一部分渲染为零。 接下来的步骤是搜索和删除一组帧中的比特之间的相关性，表示为{Fi *}。 实现本发明方法的压缩算法具有四个子步骤： 数据预处理，第一帧的压缩和编码，F1，帧的压缩和编码2- delta，F1-F delta，以及F delta +1的压缩和编码，以及稳态模式。

公开(公告)号：US6122015A

公开(公告)日：2000-09-19

申请号：US206409

申请日：1998-12-07

申请人： Naofal Mohammed Wassel Al-Dhahir ,  John Erik Hershey ,  Nick Andrew Van Stralen ,  Richard Louis Frey ,  Mark Lewis Grabb

发明人： Naofal Mohammed Wassel Al-Dhahir ,  John Erik Hershey ,  Nick Andrew Van Stralen ,  Richard Louis Frey ,  Mark Lewis Grabb

IPC分类号： H04N5/21 ,  H04N5/213

CPC分类号： H04N5/211 ,  Y10S348/914

摘要： A system for filtering digital television signals is provided. The system comprises a generator for providing a first data sequence to a private data packetizer, and a transmitter for transmitting the packetized first data sequence in a data channel of a digital television signal. The system further includes a receiver for receiving the digital television signal and recovering the first data sequence. The receiver includes a channel estimator for providing an estimate of channel characteristics, such as estimated channel impulse estimate and estimated noise variance. The receiver further includes an adaptive equalizer filter having an input for receiving the digital television signal and an input for receiving adaptive filter coefficients. The receiver further includes a coefficient processor for calculating adaptive filter coefficients based on the channel estimate, and providing the adaptive filter coefficients to the adaptive equalizer filter. The digital television signal is thus filtered to remove undesired channel effects.

摘要翻译： 提供了一种用于过滤数字电视信号的系统。 该系统包括用于向专用数据分组器提供第一数据序列的发生器和用于在数字电视信号的数据信道中发送分组化的第一数据序列的发射机。 该系统还包括用于接收数字电视信号并恢复第一数据序列的接收机。 接收机包括用于提供信道特性的估计的信道估计器，例如估计的信道脉冲估计和估计的噪声方差。 接收机还包括具有用于接收数字电视信号的输入端和用于接收自适应滤波器系数的输入端的自适应均衡器滤波器。 接收机还包括系数处理器，用于基于信道估计来计算自适应滤波器系数，并将自适应滤波器系数提供给自适应均衡器滤波器。 因此数字电视信号被滤波以去除不需要的信道效应。

公开(公告)号：US5995533A

公开(公告)日：1999-11-30

申请号：US555968

申请日：1995-11-13

申请人： Amer Aref Hassan ,  John Erik Hershey ,  Sandeep Chennakeshu

发明人： Amer Aref Hassan ,  John Erik Hershey ,  Sandeep Chennakeshu

IPC分类号： H04L9/16 ,  H04B17/00 ,  H04K1/00 ,  H04L9/08 ,  H04Q7/38 ,  H04B15/00

CPC分类号： H04L9/0838 ,  H04B17/24 ,  H04J13/00 ,  H04K1/00 ,  H04L2209/80

摘要： Characteristics of the radio channel are used to establish pseudorandom sequences for use in communicating information. These characteristics are the short-term reciprocity and rapid spatial decorrelation of phase of the radio channel. Due to the reciprocal nature of these radio channel characteristics, the transceivers which are communicating via the radio channel will generally both determine the same sequence. Although the determined sequences are not always sufficiently random for use in pseudorandom functions, a randomness tester can be provided to discard those sequences which are not sufficiently random. Exemplary pseudorandom communication functions include the selection of a spreading sequence in CDMA systems and the selection of a hopping sequence in a TDMA or CDMA system.

摘要翻译： 无线电信道的特征用于建立用于传送信息的伪随机序列。 这些特征是无线电频道相位的短期互惠和快速空间去相关。 由于这些无线电信道特性的相互性质，通过无线电信道进行通信的收发机通常都将确定相同的序列。 虽然所确定的序列并不总是足够随机地用于伪随机函数，但是可以提供随机性测试器来丢弃那些不够随机的序列。 示例性伪随机通信功能包括CDMA系统中的扩展序列的选择以及TDMA或CDMA系统中的跳频序列的选择。

公开(公告)号：US5867489A

公开(公告)日：1999-02-02

申请号：US691964

申请日：1996-08-05

申请人： John Erik Hershey ,  Gary Jude Saulnier ,  Stephen Michael Hladik ,  Richard Charles Gaus, Jr. ,  Wayne Curtis Taft ,  Richard August Korkosz ,  Glen William Brooksby

发明人： John Erik Hershey ,  Gary Jude Saulnier ,  Stephen Michael Hladik ,  Richard Charles Gaus, Jr. ,  Wayne Curtis Taft ,  Richard August Korkosz ,  Glen William Brooksby

IPC分类号： G01S5/14 ,  G01S19/05 ,  G01S19/11 ,  G01S19/21 ,  G01S19/29 ,  G01S19/46 ,  H04B7/212 ,  H04J3/06 ,  H04J3/16

CPC分类号： H04B7/2125 ,  H04J3/0605 ,  G01S5/14

摘要： In a time division multiple access spacecraft communication system, each ground station determines when to send its information packets to arrive at the spacecraft at the beginning of a time slot. The calculation is based upon knowledge of the location of the spacecraft. A master ground station determines the location of the spacecraft by the use of the propagation delays between the various ground stations (including itself) and the spacecraft, together with knowledge of the locations of the ground stations. The spacecraft location is then transmitted back to the various ground stations. The determination of propagation delay by each ground station is performed in two major steps. The first step determines coarse time delay to within one bit interval by repeatedly transmitting a multibit unique word to the spacecraft, and counting bits until the next unique word is received from the spacecraft. To determine fine propagation delay, a high-frequency clock signal is counted from the time of transmission of each bit edge until the reception of the next bit edge. The sum of the coarse and fine delays, together with a plurality of frame intervals, establishes the range to the spacecraft.

摘要翻译： 在时分多址航天器通信系统中，每个地面站确定在时隙开始时何时发送其信息分组到达航天器。 计算基于对航天器位置的了解。 主地面站通过使用各种地面站（包括其自身）和航天器之间的传播延迟以及地面站位置的知识来确定航天器的位置。 然后将航天器的位置传送回各个地面站。 每个地面站的传播延迟的确定在两个主要步骤中进行。 第一步通过向航天器重复发送多位唯一字，并计数位，直到从航天器接收到下一个唯一字，确定在一个位间隔内的粗略时间延迟。 为了确定精细的传播延迟，从每个位边沿的传输时间直到下一个位边沿的接收来计数高频时钟信号。 粗略和精细延迟的总和以及多个帧间隔建立了航天器的范围。

公开(公告)号：US5859912A

公开(公告)日：1999-01-12

申请号：US620142

申请日：1996-03-22

申请人： John Erik Hershey ,  John Joseph Bloomer

发明人： John Erik Hershey ,  John Joseph Bloomer

IPC分类号： H04L9/22 ,  H04L9/00

CPC分类号： H04L9/0662 ,  H04L2209/046 ,  H04L2209/12

摘要： A system for determining a maximum length digital sequence is constructed by selecting a Mersenne Prime integer and a primitive polynomial having an ORDER equal to the Mersenne Prime integer. An arbitrarily selected mask m is either provided to the transmitter and receiver, or constructed, at either, or both. The mask is used to create a decimated M sequence, and work backwards to define a recursion rule vector r which is associated with another primitive polynomial corresponding to the decimated M sequence. This recursion rule vector r is used to create a new feedback shift register which produces a maximum length sequence. An initialization vector i is provided to the transmitter and receiver and used as an initial load of the shift register. A selected stage of this register is exclusive-ORed ("XORed") with each bit of a plaintext message to be sent to result in cipher text. At the receiver, the same process is performed with the same mask m, and initialization vector i, to create the same recursion rule vector r, and shift register. The same stage of this shift register is then XORed with the received ciphertext message to result in the original plaintext message.

摘要翻译： 通过选择Mersenne Prime整数和具有等于Mersenne Prime整数的ORDER的原始多项式来构造用于确定最大长度数字序列的系统。 任意选择的掩模m被提供给发射机和接收机，或者在任一或两者中构造。 掩码用于创建抽取的M序列，并向后工作以定义与对应于抽取的M序列的另一原始多项式相关联的递归规则向量r。 该递归规则向量r用于创建产生最大长度序列的新的反馈移位寄存器。 初始化向量i被提供给发送器和接收器并用作移位寄存器的初始负载。 该寄存器的选定级别与要发送的明文消息的每个位进行异或（“异或”）以产生密文。 在接收机处，使用相同的掩码m和初始化向量i执行相同的处理，以创建相同的递归规则向量r和移位寄存器。 然后将该移位寄存器的相同阶段与接收到的密文消息进行异或，以得到原始明文消息。

公开(公告)号：US5745578A

公开(公告)日：1998-04-28

申请号：US665339

申请日：1996-06-17

申请人： Amer Aref Hassan ,  John Erik Hershey ,  Sandeep Chennakeshu

发明人： Amer Aref Hassan ,  John Erik Hershey ,  Sandeep Chennakeshu

IPC分类号： G09C1/00 ,  H04L9/08 ,  H04L9/00 ,  H04B7/00 ,  H04B17/00 ,  H04Q3/02

CPC分类号： H04L9/0838 ,  H04L9/0875 ,  H04L2209/08 ,  H04L2209/34 ,  H04L2209/80

摘要： A method and an apparatus for establishing a key sequence for secure communication through a communication channel between a first transceiver and a second transceiver. Each transceiver transmits to the other transceiver a plurality of tones having predetermined phases and frequencies. Each transceiver transmits back to the other transceiver, without substantial change, the plurality of tones transmitted by the other transceiver. The transceivers determine a key based on the differences in the phases of transmitted and received plurality of tones.

摘要翻译： 一种用于通过第一收发器和第二收发器之间的通信信道建立用于安全通信的密钥序列的方法和装置。 每个收发器向另一收发器发送具有预定相位和频率的多个音调。 每个收发器在没有实质性改变的情况下发送回另一个收发信机，由另一个收发信机发送的多个音调。 收发器基于发送和接收的多个音调的相位差来确定键。

公开(公告)号：US20130162985A1

公开(公告)日：2013-06-27

申请号：US13334857

申请日：2011-12-22

申请人： Ertugrul Berkcan ,  Brock Matthew Lape ,  John Frederick Graf ,  Glen Peter Koste ,  John Erik Hershey

发明人： Ertugrul Berkcan ,  Brock Matthew Lape ,  John Frederick Graf ,  Glen Peter Koste ,  John Erik Hershey

IPC分类号： G01J1/40

CPC分类号： G01M11/086 ,  G01B11/16 ,  G01L5/0057

摘要： A system for monitoring tightness of stator windings in an electric machine is provided. The system includes a light source for providing an optical power. The system also includes an optical separation sensor situated in a stator core and including an optical interface element for absorbing some of the optical power. Further, the system includes a power meter for measuring at least one intensity of the optical power after absorption by the optical interface element and a control subsystem for assessing the tightness of the stator windings.

摘要翻译： 提供了一种用于监测电机中定子绕组紧密度的系统。 该系统包括用于提供光功率的光源。 该系统还包括位于定子芯中并包括用于吸收一些光功率的光学接口元件的光学分离传感器。 此外，该系统包括用于测量由光学接口元件吸收后的光功率的至少一个强度的功率计和用于评估定子绕组的紧密度的控制子系统。

公开(公告)号：US08412659B2

公开(公告)日：2013-04-02

申请号：US12463731

申请日：2009-05-11

申请人： Viswanath Avasarala ,  John Erik Hershey ,  Anil Varma ,  Piero Patrone Bonissone

发明人： Viswanath Avasarala ,  John Erik Hershey ,  Anil Varma ,  Piero Patrone Bonissone

IPC分类号： G06F17/00 ,  G06N5/00

CPC分类号： G06F17/30643 ,  G06F17/30011 ,  G06F17/30713

摘要： A semi-automated method for interactively analyzing a patent landscape in one embodiment includes retrieving a plurality of relevant patents indicative of a predetermined conceptual region of the patent landscape from a patent repository using a query. Competitive analysis of the plurality of relevant patents is conducted using an interactive network-based visualization technique. The competitive analysis is used for intellectual property enforcement, due diligence, and strategic investment analysis.

摘要翻译： 在一个实施例中用于交互地分析专利环境的半自动化方法包括使用查询从专利储存库检索指示专利环境的预定概念区域的多个相关专利。 使用基于交互式网络的可视化技术来进行多个相关专利的竞争分析。 竞争分析用于知识产权执法，尽职调查和战略投资分析。

公开(公告)号：US08385178B2

公开(公告)日：2013-02-26

申请号：US12977412

申请日：2010-12-23

申请人： Xeufeng Wang ,  John Erik Hershey ,  Zhiyuan Ren ,  Xiaohong Li

发明人： Xeufeng Wang ,  John Erik Hershey ,  Zhiyuan Ren ,  Xiaohong Li

IPC分类号： G11B7/00

CPC分类号： G11B7/083 ,  G11B7/0927 ,  G11B2007/0009

摘要： Techniques are provided for using a multi-stage actuator to actuate one or more optical components of an optical head. The multi-stage actuator includes a cross-layer displacement component which actuates an optical component to change the beam focus in a displacement range corresponding to the thickness of the data layers in a holographic disk, such that a beam is impinged on the target data layer. The multi-stage actuator also includes a intra-layer focusing component which actuates the optical component in a smaller range to focus the beam on the target data position. The cross-layer displacement component and the intra-layer focusing component may each include more than one actuator. In some embodiments, the focusing component also actuates the optical component in a tilting motion to compensate for movement or imperfections of the disk during a reading or recording process.

摘要翻译： 提供了使用多级致动器致动光学头的一个或多个光学部件的技术。 多级致动器包括跨层位移部件，其驱动光学部件以在与全息光盘中的数据层的厚度相对应的位移范围内改变光束聚焦，使得光束撞击在目标数据层上 。 多级致动器还包括内部聚焦部件，该部件在较小范围内致动光学部件，以将光束聚焦在目标数据位置上。 跨层位移分量和层内聚焦分量可以各自包括多于一个的致动器。 在一些实施例中，聚焦部件还以倾斜运动来致动光学部件，以在读取或记录过程期间补偿光盘的运动或不完美。