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1. 发明授权

US5734674A Pseudorandom-noise receiver having automatic switching between regular and anti-jamming modes 失效
标题翻译：伪随机噪声接收机具有常规和抗干扰模式之间的自动切换
公开(公告)号：US5734674A
公开(公告)日：1998-03-31
申请号：US720862
申请日：1996-10-02
申请人： Patrick C. Fenton , Thomas J. Ford
发明人： Patrick C. Fenton , Thomas J. Ford
IPC分类号： G01S1/00 , H04B1/7085 , H04B1/709 , H04K1/00 , H04K3/00
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 antocorrelators 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.
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自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。在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。每个通道中的自相关器形成延迟锁定环（DLL），其将复合信号的数字样本与本地生成的PRN码值相关联，以产生多个（早，晚）或（准时，早 - 减 - 晚）相关信号。（早，晚）和（准时，早 - 晚 - 晚）相关信号之间的时间延迟间隔被动态调整，使得在初始采集模式中，延迟间隔相对较宽，约为一个PRN 代码片时间; 一旦实现了PRN码锁定，码延迟间隔被缩小到PRN码片片时间的一小部分。

2. 发明授权

US06728637B2 Track model constraint for GPS position 有权
标题翻译： GPS位置跟踪模型约束
公开(公告)号：US06728637B2
公开(公告)日：2004-04-27
申请号：US09888195
申请日：2001-06-22
申请人： Thomas J. Ford , Patrick C. Fenton , James O. McGuffin , Stanley K. Honey
发明人： Thomas J. Ford , Patrick C. Fenton , James O. McGuffin , Stanley K. Honey
IPC分类号： G06C2126
CPC分类号： G01S19/50 , G01C21/28 , G01S5/0027 , G01S5/0036 , G01S5/0054 , G01S19/04
摘要： A track model is created for use with a GPS receiver. In one embodiment, the track model is a set of planar surfaces which approximate the contiguous surface on which navigation takes place. The GPS receiver searches for an appropriate planar surface associated with its approximate position. Having found the appropriate planar surface, the GPS receiver constrains its position using the planar surface associated with its approximate position. Using the track model improves the accuracy of the computed position at the time and improves the ambiguity estimation process so that positions with greatly improved accuracy are available sooner.
摘要翻译：创建轨道模型以与GPS接收器一起使用。在一个实施例中，轨道模型是近似在其上进行导航的邻接表面的一组平面表面。 GPS接收机搜索与其近似位置相关联的适当平面。找到适当的平面后，GPS接收机使用与其近似位置相关联的平面来限制其位置。使用轨迹模型提高了计算时间位置的精度，并改善了模糊度估计过程，从而可以更快地获得具有极大提高精度的位置。

3. 发明授权

US07528770B2 Method for positioning using GPS in a restrictive coverage environment 有权
标题翻译：在限制性覆盖环境中使用GPS进行定位的方法
公开(公告)号：US07528770B2
公开(公告)日：2009-05-05
申请号：US11180374
申请日：2005-07-13
申请人： Thomas J. Ford , Sandy Kennedy
发明人： Thomas J. Ford , Sandy Kennedy
IPC分类号： G01S5/14
CPC分类号： G01S5/0036 , G01S19/44
摘要： A system consisting of a base GPS receiver with a clear view of the sky, one or more remote GPS receivers with restricted views of the sky and a processing center that batch processes range information provided by the GPS receivers determines the positions of the remote GPS receivers to within tight tolerances. The base GPS receiver and the remote GPS receivers produce range information based on the satellite signals that the respective receivers can track at a given time, and provide the range information to the processing center. The range information includes both code and carrier measurements for each of the signals that are being tracked by the respective GPS receivers. The center collects the range information over an extended period of time, for example, hours, days or weeks, and then batch processes the collected information in multiple passes through the data, to calculate the precise latitude, longitude and height of the receiver. The center batch processes the data using a floating ambiguity filter that, after a first pass through the data, is initialized with the position calculated in an earlier pass. The center also calculates the quality of the collected range information by fixing the position and position covariance of the floating ambiguity filter and using double differences with the base GPS receiver measurements, to ensure that the information used in subsequent position calculations is sufficiently reliable.
摘要翻译：由具有清晰视野的基本GPS接收机和天线受限视角的一个或多个远程GPS接收机和由GPS接收机提供的批量处理范围信息的处理中心组成的系统确定远程GPS接收机的位置在严格的公差范围内。基地GPS接收机和远程GPS接收机根据相应接收机在给定时间可以跟踪的卫星信号产生距离信息，并向处理中心提供距离信息。范围信息包括针对由各个GPS接收机跟踪的每个信号的码和载波测量。中心在较长时间内收集范围信息，例如，几个小时，几天或几周，然后通过数据多次处理收集的信息，以计算接收机的精确纬度，经度和高度。中心批处理使用浮动模糊度过滤器的数据，该浮动模糊度过滤器在首次通过数据之后，以较早的通过计算的位置初始化。中心还通过固定浮动模糊滤波器的位置和位置协方差并使用与基本GPS接收机测量值的双重差异来计算采集范围信息的质量，以确保后续位置计算中使用的信息足够可靠。

4. 发明授权

US6099719A Hydroconversion process for making lubicating oil basestocks 失效
标题翻译：用于制作润滑油基础油的加氢转化过程
公开(公告)号：US6099719A
公开(公告)日：2000-08-08
申请号：US023575
申请日：1998-02-13
申请人： Ian A. Cody , William J. Murphy , Thomas J. Ford
发明人： Ian A. Cody , William J. Murphy , Thomas J. Ford
IPC分类号： C10G45/58 , C10G45/60 , C10G45/64 , C10G47/04 , C10G65/04 , C10G65/12 , C10G67/04 , C10G73/06 , C10M177/00 , C10G11/04
CPC分类号： C10G65/043 , C10G65/04 , C10G67/0418 , C10G2400/10
摘要： A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by solvent extracting a feedstock to produce a raffinate, solvent dewaxing the raffinate, selectively hydroconverting the solvent dewaxed raffinate in a two step hydroconversion zone followed by a hydrofinishing zone and a dewaxing zone.
摘要翻译：一种制备具有至少90wt。％的润滑油基础油的方法。通过溶剂萃取原料以产生萃余液，溶剂脱蜡萃余液，在两步加氢转化区，然后是加氢精制区和脱蜡区选择性地加氢转化溶剂脱蜡的残液，通过溶剂萃取至少105。

5. 发明授权

US5146675A Cylindrical roller for a glass tempering oven having improved ends caps 失效
标题翻译：用于具有改进的端盖的玻璃回火炉的圆柱滚子
公开(公告)号：US5146675A
公开(公告)日：1992-09-15
申请号：US711808
申请日：1991-06-07
申请人： George Ford , Richard G. Ford , Thomas J. Ford
发明人： George Ford , Richard G. Ford , Thomas J. Ford
IPC分类号： B65G39/09 , C03B35/18 , F16C13/00
CPC分类号： B65G39/09 , C03B35/186 , F16C13/00
摘要： A cylindrical roller apparatus for a glass tempering oven comprises a ceramic roller having a first end portion and a second end portion, a flat formed on each end portion of the roller, an end cap having a cylindrical wall mounted on each end portion of the roller, a metal retaining plate positioned on each flat, and a screw threaded through each end cap wall that screws into contact with the retaining plate for securing each end cap to the roller and for pushing the roller flush against the inner surface of the end cap wall. An acess hole can be provided in the end cap for welding together the screw, retaining plate, and end cap. Grooves can also be formed on the inner surface of the end cap, accessible through an opening formed through the end cap, to allow injection of adhesive between the roller and end cap to further secure the two together.
摘要翻译：一种用于玻璃回火炉的圆柱滚子装置，包括具有第一端部和第二端部的陶瓷辊，形成在辊的每个端部上的平坦端，具有安装在辊的每个端部上的圆柱形壁的端盖，定位在每个平面上的金属保持板，以及螺纹穿过每个端盖壁的螺钉，螺钉与保持板接触，用于将每个端盖固定到辊上并将辊推压到端盖壁的内表面上。可以在端盖中设置一个孔，用于将螺钉，保持板和端盖焊接在一起。沟槽也可以形成在端盖的内表面上，可通过通过端盖形成的开口接近，以允许在辊和端盖之间注入粘合剂以进一步将两者固定在一起。

6. 发明授权

US5977425A Method for upgrading waxy feeds using a catalyst comprising mixed powdered dewaxing catalyst and powdered isomerization catalyst formed into a discrete particle 失效
标题翻译：使用包含混合粉状脱蜡催化剂和形成为离散颗粒的粉末状异构化催化剂的催化剂来提高蜡质进料的方法
公开(公告)号：US5977425A
公开(公告)日：1999-11-02
申请号：US23571
申请日：1998-02-13
申请人： Dee A. Brandes , David N. Zinkie , Sandra Jane Alward , William J. Murphy , Ian A. Cody , Thomas J. Ford
发明人： Dee A. Brandes , David N. Zinkie , Sandra Jane Alward , William J. Murphy , Ian A. Cody , Thomas J. Ford
IPC分类号： C10G47/16 , B01J29/068 , B01J29/67 , B01J29/74 , B01J35/00 , B01J37/00 , C10G45/64 , C10G65/12 , C10G67/04
CPC分类号： B01J29/7461 , B01J23/42 , B01J29/068 , B01J29/67 , B01J29/7484 , B01J35/0006 , B01J37/0009 , C10G45/64 , C10G65/12 , C10G67/04 , B01J29/7492
摘要： It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalysts being formed into a discrete particle.
摘要翻译：已经发现，可以使用通过将粉末状脱蜡催化剂与粉末状异构化催化剂组合的催化剂将所述蜡状进料升级，所述粉末状催化剂的混合物形成离散的颗粒。

7. 发明授权

US4945520A Hydro-acoustic device for warning sea mammals 失效
标题翻译：用于警告海洋哺乳动物的水声装置
公开(公告)号：US4945520A
公开(公告)日：1990-07-31
申请号：US413067
申请日：1989-09-27
申请人： Thomas J. Ford
发明人： Thomas J. Ford
IPC分类号： A01K79/02 , G10K11/20 , H04B11/00
CPC分类号： G10K11/205 , A01K79/02 , H04B11/00
摘要： A passive hydro-acoustic device for warning sea mammals away from shallow areas consisting of an anchor linearly arranged in front of a shallow area and a plurality of cables attached to the anchor at predefined intervals and extending substantially perpendicular therefrom and sonar reflecters affixed to each of the cables.
摘要翻译：一种用于向海洋哺乳动物警告海洋哺乳动物的无源水声装置，远离浅层区域，该区域由在浅区域前方线性排列而形成的锚固件以及以预定间隔连接到锚固件并与其大致垂直延伸的多条缆线，电缆。

8. 发明授权

US06211821B1 Apparatus and method for determining pitch and azimuth from satellite signals 有权
标题翻译：用于从卫星信号确定音调和方位的装置和方法
公开(公告)号：US06211821B1
公开(公告)日：2001-04-03
申请号：US09398530
申请日：1999-09-16
申请人： Thomas J. Ford
发明人： Thomas J. Ford
IPC分类号： G01S502
CPC分类号： G01S19/55 , G01S19/22
摘要： A navigational apparatus includes a receiver, two antennas, and a computational unit to receive satellite positional signals and provides corrected position, azimuth, and pitch readings. The computational unit: determines differences in the signal carrier measurements output by the receiver; rejects or accepts carrier ambiguity candidates based on predefined criteria; and estimates multipath on successive pairs of carrier observations to obtain the corrected readings.
摘要翻译：导航装置包括接收器，两个天线和用于接收卫星位置信号的计算单元，并且提供校正的位置，方位角和俯仰读数。计算单元：确定由接收机输出的信号载波测量值的差异; 基于预定标准拒绝或接受载体模糊候选者; 并估计连续的载波观测对上的多路径以获得校正的读数。

9. 发明授权

US5101416A Multi-channel digital receiver for global positioning system 失效
标题翻译：用于全球定位系统的多通道数字接收机
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.

10. 发明授权

US4547934A Crimped staple fiber 失效
标题翻译：卷曲短纤维
公开(公告)号：US4547934A
公开(公告)日：1985-10-22
申请号：US575630
申请日：1984-01-31
申请人： Thomas J. Ford
发明人： Thomas J. Ford
IPC分类号： D01G1/04 , D02G1/12
CPC分类号： D02G1/125 , D01G1/04
摘要： Process and apparatus are provided for the preparation of crimped staple fibers. By automatically adjusting the pressure on the stuffer crimper box discharge means as a function of staple cutter speed, a crimped staple product with uniform fiber-to-fiber cohesion level is obtained.
摘要翻译：提供了制备卷曲短纤维的工艺和设备。通过自动调节作为切割刀速度的函数的填充卷曲机排出装置的压力，获得具有均匀的纤维 - 纤维内聚力水平的卷曲的短纤维制品。

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