公开(公告)号：US20130171453A1

公开(公告)日：2013-07-04

申请号：US13704280

申请日：2011-06-29

申请人： Kevin Patrick Fenton ,  Aaron Tomasek ,  Andrew Justin Francis

发明人： Kevin Patrick Fenton ,  Aaron Tomasek ,  Andrew Justin Francis

IPC分类号： B32B9/00 ,  C01B31/02

CPC分类号： B32B9/007 ,  C01B32/05 ,  H05B7/06 ,  Y10T428/30

摘要： A carbon article having a first zone and a second zone wherein in the first zone formed from a first mix design and the second zone formed from a second mix design and the first and second mix designs have at least one difference selected from the group of differences of a presence of a certain material, a concentration of a certain material, the size of the a certain material and combinations thereof.

摘要翻译： 一种具有第一区域和第二区域的碳制品，其中在由第一混合设计形成的第一区域中形成的第二区域和由第二混合设计形成的第二区域以及第一和第二混合设计具有从差异组中选择的至少一个差异 某种材料的存在，某种材料的浓度，某种材料的尺寸及其组合。

公开(公告)号：US20070064776A1

公开(公告)日：2007-03-22

申请号：US11520353

申请日：2006-09-13

申请人： Walter Feller ,  Patrick Fenton ,  Graham Purves

发明人： Walter Feller ,  Patrick Fenton ,  Graham Purves

IPC分类号： H04B1/00

CPC分类号： G01S19/22 ,  H04B1/7085

摘要： A receiver for position-determining ranging signals transmitted by earth-orbiting satellites uses a set of accumulators, each of which accumulates signal samples corresponding with a position along the rising edges of incoming PRN pulses. An MMT processor calculates the rising edges of the direct path component of the received signal, selects the accumulator whose content correspond to a reference value related to the pulse height of the direct path component and compares the timing of the samples in that accumulator with the timing of the reference value on a reference pulse.

摘要翻译： 用于由地球轨道卫星发射的位置确定测距信号的接收机使用一组累加器，每个累加器累积与沿着进入的PRN脉冲的上升沿的位置对应的信号样本。 MMT处理器计算接收信号的直接路径分量的上升沿，选择其内容对应于与直接路径分量的脉冲高度相关的参考值的累加器，并将该累加器中的采样的定时与定时 参考脉冲的参考值。

公开(公告)号：US20050033519A1

公开(公告)日：2005-02-10

申请号：US10891800

申请日：2004-07-15

申请人： Patrick Fenton

发明人： Patrick Fenton

IPC分类号： G01S19/05 ,  G01S5/14 ,  G01S19/11 ,  G01S19/19 ,  G01S19/44 ,  G01S19/46 ,  G01V1/00 ,  G01V1/26

CPC分类号： G01V3/28 ,  G01S19/05 ,  G01S19/44 ,  G01V1/003 ,  G01V1/16 ,  G01V1/22 ,  G01V1/26

摘要： A system for analyzing three-dimensional seismic data includes a plurality of digitizer units, each with a configuration of geophones, a data recording and control center, a base GPS receiver with an associated antenna with a substantially unrestricted view of the sky and at the respective digitizer units low-power slave GPS receivers that acquire and track GPS satellite signals using tracking assistance information provided by the base GPS receiver. The slave GPS receivers use the tracking assistance information to acquire and track GPS satellite signals that may be relatively weak at the receivers, due to conditions at the site, such as foliage canopies and so forth. The system processes range information provided by the slave GPS receivers over an extended period of time. In this way, the precise positions of the respective slave GPS receivers, and thus, the digitizer units, can be calculated, even if the slave GPS receivers are able to observe and collect data from sets of two or more satellites for only three or four relatively short time intervals at various sky positions during the extended period. The slave GPS receivers then locally produce for the digitizer units timing signals that are based on the GPS codes and synchronized across the system. If a given slave GPS receiver cannot, at a given time, track any GPS satellite signals, a nearby slave GPS receiver supplies the timing information required for the geophone data gathering operations.

摘要翻译： 用于分析三维地震数据的系统包括多个数字化仪单元，每个数字化仪单元具有地震检波器的配置，数据记录和控制中心，具有相关天线的基本GPS接收器，其具有天空的基本上无限制的视图， 数字转换器单元低功率从站GPS接收机，采用GPS卫星信号采集和跟踪GPS接收机提供的跟踪辅助信息。 从属GPS接收机使用跟踪辅助信息来获取和跟踪在接收机处可能相对较弱的GPS卫星信号，这是由于现场的状况，例如叶面檐篷等等。 该系统在较长时间内处理由从属GPS接收机提供的范围信息。 以这种方式，即使从属GPS接收机能够观察和收集来自两个或更多个卫星的数据的数据只能三或四个，也可以计算各个从属GPS接收机以及因此数字转换器单元的精确位置 在长时间内在各种天空位置的相对较短的时间间隔。 然后，从属GPS接收机本地产生用于数字转换器单元的基于GPS代码并基于系统同步的定时信号。 如果给定的从属GPS接收机在给定时间不能跟踪任何GPS卫星信号，则附近的从属GPS接收器提供地震检波器数据采集操作所需的定时信息。

公开(公告)号：US5809064A

公开(公告)日：1998-09-15

申请号：US691351

申请日：1996-08-02

申请人： Patrick Fenton ,  Albert J. Van Dierendonck

发明人： Patrick Fenton ,  Albert J. Van Dierendonck

IPC分类号： G01S1/00 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/69 ,  H04L27/30

CPC分类号： H04B1/7085 ,  G01S19/215 ,  G01S19/22 ,  G01S19/30 ,  G01S19/37 ,  G01S19/426 ,  H04B1/709 ,  G01S19/29

摘要： A receiver for pseudorandom noise (PRN) encoded signals consisting of a sampling circuit, multiple carrier and code synchronizing circuits, and multiple digital autocorrelators. The sampling circuit provides digital samples of a received composite signal to each of the several receiver channel circuits. The synchronizing circuits are preferably non-coherent, in the sense that they track any phase shifts in the received signal and adjust the frequency and phase of a locally generated carrier reference signal accordingly, even in the presence of Doppler or ionospheric distortion. The autocorrelators in each channel form a delay lock loop (DLL) which correlates the digital samples of the composite signal with locally generated PRN code values to produce a plurality of (early, late), or (punctual, early-minus-late) correlation signals. The time delay spacing between the (early, late), and (punctual, early-minus-late) correlation signals are dynamically adjusted, such that in an initial acquisition mode, the delay spacing is relatively wide, on the order of approximately one PRN code chip time; once PRN code lock is achieved, the code delay spacing is narrowed to a fraction of a PRN code chip time.

公开(公告)号：US5414729A

公开(公告)日：1995-05-09

申请号：US158511

申请日：1993-11-29

申请人： Patrick Fenton

发明人： Patrick Fenton

IPC分类号： G01S1/00 ,  G01S1/04 ,  G01S19/22 ,  H04B1/10 ,  H04B1/707 ,  H04L7/00 ,  H04L27/00 ,  H04B15/00

CPC分类号： H04B1/7085 ,  G01S19/22 ,  H04B1/709

摘要： A receiver for pseudorandom noise (PRN) encoded signals consisting of a sampling circuit, multiple carrier and code synchronizing circuits, and multiple digital correlators. The sampling circuit provides digital samples of a received composite signal to each of the several receiver channel circuits. The synchronizing circuits are preferably non-coherent, in the sense that they track any phase shifts in the received signal and adjust the frequency and phase of a locally generated carrier reference signal accordingly, even in the presence of Doppler or ionospheric distortion. The multiple correlators in each channel correlates the digital samples with locally generated PRN codes having multiple offsets, to produce a plurality of correlation signals. The plurality of correlation signals are fed to a parameter estimator, from which the delay and phase parameters of the direct path signal, as well as any multipath signals, may be estimated, and from which a range measurement may be corrected.

摘要翻译： 用于由抽样电路，多载波和码同步电路以及多个数字相关器组成的伪随机噪声（PRN）编码信号的接收机。 采样电路将接收到的复合信号的数字样本提供给几个接收机通道电路中的每一个。 同步电路优选地是非相干的，即在它们跟踪接收信号中的任何相移并相应地调整本地产生的载波参考信号的频率和相位的意义上，即使在存在多普勒或电离层失真的情况下也是如此。 每个信道中的多个相关器使数字样本与具有多个偏移的本地生成的PRN码相关，以产生多个相关信号。 多个相关信号被馈送到参数估计器，从该参数估计器可以估计直接路径信号的延迟和相位参数以及任何多径信号，并且可以从其校正范围测量。

公开(公告)号：US20080188936A1

公开(公告)日：2008-08-07

申请号：US12025449

申请日：2008-02-04

申请人： Robert J. Ball ,  Thomas D. Egan ,  Paul V. Fenton ,  Kevin L. Ohashi ,  Dale R. Peterson ,  Peter Sorenson ,  Douglas Snell ,  John Yannone ,  Patrick Fenton

发明人： Robert J. Ball ,  Thomas D. Egan ,  Paul V. Fenton ,  Kevin L. Ohashi ,  Dale R. Peterson ,  Peter Sorenson ,  Douglas Snell ,  John Yannone ,  Patrick Fenton

IPC分类号： A61F2/08

CPC分类号： A61F2/08 ,  A61B17/1146 ,  A61B2017/0404 ,  A61B2017/0417 ,  A61B2017/0496 ,  A61F2/0063

摘要： An implant and method for the repair of a tendon or a ligament along at least one load direction. The implant includes at least one first anchor portion and at least one tension member oriented along a load direction. The first anchor portion preferably has a larger surface area of engagement with the tendon or ligament to spread loads across more tissue. The tension member is preferably secured to the first anchor portion with an overlapping attachment. Tension on the tension member is preferably adjustable by the surgeon.

摘要翻译： 用于沿至少一个负载方向修复腱或韧带的植入物和方法。 植入物包括至少一个第一锚定部分和沿着负载方向定向的至少一个张紧构件。 第一锚固部分优选地具有与腱或韧带接合的更大的表面积，以将载荷跨越更多的组织。 张紧构件优选地以重叠的附接件固定到第一锚固部分。 张力构件上的张力优选由外科医生调节。

公开(公告)号：US20070268176A1

公开(公告)日：2007-11-22

申请号：US11835520

申请日：2007-08-08

申请人： Patrick Fenton

发明人： Patrick Fenton

IPC分类号： G01S1/02

CPC分类号： G01V3/28 ,  G01S19/05 ,  G01S19/44 ,  G01V1/003 ,  G01V1/16 ,  G01V1/22 ,  G01V1/26

摘要： A system for determining positions of fixed-position GPS receives that have restricted views of the sky includes a data recording and control center, and one or more base GPS receivers with associated antennas with a substantially unrestricted views of the sky. The system batch processes range information provided by the fixed-position GPS receivers over an extended period of time; determining which of the range data from the fixed-position receivers are valid, and using the valid range data to determine position. In this way, the precise positions of the respective fixed-position slave GPS receivers can be calculated, even if the fixed-position GPS receivers are able to observe and collect data from sets of two or more satellites for only three or four relatively short time intervals at various sky positions during the extended period.

摘要翻译： 用于确定具有限制的天空视图的固定位置GPS接收的位置的系统包括数据记录和控制中心以及一个或多个基本GPS接收机，其具有天空的基本无限制视图。 系统批量处理固定位置GPS接收机在延长的时间段内提供的范围信息; 确定来自固定位置接收器的范围数据中的哪一个是有效的，并且使用有效范围数据来确定位置。 以这种方式，即使固定位置GPS接收机能够观察和收集来自两个或更多个卫星的集合的数据，只有三个或四个相对短的时间，也可以计算各个固定位置从属GPS接收机的精确位置 在长时间内处于不同天空位置的间隔。

公开(公告)号：US20070058700A1

公开(公告)日：2007-03-15

申请号：US11226174

申请日：2005-09-14

申请人： Patrick Fenton

发明人： Patrick Fenton

IPC分类号： H04B1/00

CPC分类号： G01S19/30 ,  H04B1/7075 ,  H04B2201/70715

摘要： A receiver employs a pre-correlation filter to determine the precise timing of, for example, a PRN code on the quadrature channel of a received signal, using an image of the average chip shape that the filter forms for a PRN code on the in-phase channel. The image is expressed as a time series of complex power measurements along the length of a single chip. The averaging process retains the detail of the composite in-phase signal (direct plus multipath signals) while reducing the level of signal noise by an amount proportional to the length of the averaging process. An analysis of the image reveals that there is, in the in-phase channel signal that is averaged, information from the quadrature channel signal. The quadrature channel signal information produces, in the image of the average chip shape of the in-phase channel PRN code, a “wiggle” that corresponds to the timing of the chips of the quadrature channel PRN code. The receiver detects the chip edges of the quadrature PRN code directly from an analysis of the high frequency phase modulations of the complex vector of samples that represents the average chip shape. Using GPS signals, the receiver detects the P-code transitions by synchronizing to the 10.23 MHz phase modulations in the complex vector of samples that represent the averaged chip shape. The receiver uses the detected P-code transitions and, more particularly, the P-code transitions that are closest to the C/A code transitions, to produce P-code phase information that the receiver uses pseudorange calculations to remove biases associated with timing differences between the transmission of the in-phase and quadrature PRN codes.

摘要翻译： 接收机使用预相关滤波器来确定例如接收信号的正交信道上的PRN码的精确定时，使用滤波器对在内部信道上的PRN码形成的平均码片形状的图像， 相位通道。 图像表示为沿着单个芯片的长度的复杂功率测量的时间序列。 平均过程保留复合同相信号（直接加多径信号）的细节，同时将信号噪声的水平降低与平均过程的长度成比例的量。 对图像的分析显示，在平均的同相信道信号中存在来自正交信道信号的信息。 正交信道信号信息在同相信道PRN码的平均码片形状的图像中产生对应于正交信道PRN码的码片的定时的“摆动”。 接收机直接从代表平均芯片形状的样本的复矢量的高频相位调制的分析中检测正交PRN码的码片边缘。 使用GPS信号，接收机通过与表示平均芯片形状的样本的复矢量中的10.23MHz相位调制同步来检测P码转换。 接收机使用检测到的P码转换，更具体地，最接近于C / A码转换的P码转换，以产生接收机使用伪距计算去除与定时差相关的偏差的P码相位信息 在同相和正交PRN码的传输之间。

公开(公告)号：US20060227905A1

公开(公告)日：2006-10-12

申请号：US11104058

申请日：2005-04-12

申请人： Waldemar Kunysz ,  Patrick Fenton

发明人： Waldemar Kunysz ,  Patrick Fenton

IPC分类号： H04L27/08 ,  H04L1/02

CPC分类号： H04B7/0822 ,  G01S19/32 ,  G01S19/33 ,  G01S19/36 ,  H04B7/086 ,  H04L5/06

摘要： A multi-band receiver for use with satellite ranging systems is provided. The receiver has a simplified architecture in which input signals of various frequencies are multiplexed together to form a single composite analog signal. In accordance with one embodiment of the invention, this composite signal only requires a single RF circuit for down conversion to an intermediate frequency. The composite, downconverted signal is sampled, and the digitized samples are demultiplexed to form digital counterparts of the original signals from each frequency band. An embodiment for use with elements of a phased array antenna is also provided.

摘要翻译： 提供了一种用于卫星测距系统的多频段接收机。 接收机具有简化的结构，其中各种频率的输入信号被多路复用在一起以形成单个复合模拟信号。 根据本发明的一个实施例，该复合信号仅需要单个RF电路来向下转换成中频。 复合下变频信号被采样，数字化样本被解复用以形成来自每个频带的原始信号的数字对应物。 还提供了一种与相控阵天线的元件一起使用的实施例。

公开(公告)号：US5101416A

公开(公告)日：1992-03-31

申请号：US619316

申请日：1990-11-28

申请人： Patrick Fenton ,  Kwok-Ki K. Ng ,  Thomas J. Ford

发明人： Patrick Fenton ,  Kwok-Ki K. Ng ,  Thomas J. Ford

IPC分类号： G01S1/00 ,  G01S1/04 ,  G01S19/21 ,  G01S19/22 ,  G01S19/37 ,  H04B1/16 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/709

CPC分类号： G01S19/37 ,  G01S19/21 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/709

摘要： A receiver for pseudorandom noise (PRN) encoded signals consisting of a sampling circuit and multiple channel circuits, with each channel circuit including a carrier and code synchronizing circuit and multiple digital correlators with dynamically adjustable code delay spacing. The sampling circuit provides high-rate digital samples of the incoming composite signal to each receiver channel. Within each channel, the synchronizing circuit detects cycle slips in a locally generated carrier reference signal as well as phase drift in a locally generated PRN code signal. The correlators compare the digital samples with a locally generated PRN code to produce early, late, and/or punctual correlation signals which are used to adjust the local PRN code. A non-linear sampling technique may be used to provide increased sensitivity in the presence of continuous wave interfering signals.