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    • 2. 发明授权
    • System and method for controlling an aircraft
    • 用于控制飞机的系统和方法
    • US06641086B2
    • 2003-11-04
    • US09930339
    • 2001-08-14
    • Walter D. Clark
    • Walter D. Clark
    • B64C1300
    • B64C9/12B64C39/10G05D1/0841Y02T50/12Y02T50/32
    • A system for controlling an aircraft includes an airframe, a first airfoil, and a second airfoil. At least a portion of the first airfoil and the second airfoil are controllably deflectable so that, during a roll maneuver, the first airfoil generates increased lift and a consequent increased drag, and the second airfoil generates negative lift and a consequent increased drag, the increased lift and the decreased lift generating a roll moment, and the increased drag of the second airfoil producing a yaw moment that counteracts the yaw moment produced by the increased drag of the first airfoil such that no substantial change in aircraft yaw moment occurs. The drag on the down-going wing may counteract the drag on the up-going wing by having a reduced area providing the down-going force so that it has to deflect to the point that it is producing not only less, but actually negative lift.
    • 用于控制飞行器的系统包括机身,第一翼型件和第二翼型件。 第一翼型件和第二翼型件的至少一部分是可控地偏转的,使得在滚动机动过程中,第一翼型件产生增加的升力和随之而来的增加的阻力,并且第二翼型件产生负提升并随之产生增加的阻力,增加 并且减小的升力产生滚动力矩,并且第二翼型件的增加的阻力产生横摆力矩,其抵消由第一翼型件的增加的阻力产生的横摆力矩,从而不会发生飞行器横摆力矩的实质变化。 下行翼上的阻力可能会通过减小面积来提供下降的力量来抵消上升机翼上的阻力,使其必须偏转到不仅产生较小的但实际上为负的升力 。
    • 4. 发明授权
    • System and method for template matching of candidates within a two-dimensional image
    • 用于二维图像中的候选者的模板匹配的系统和方法
    • US07149356B2
    • 2006-12-12
    • US10193019
    • 2002-07-10
    • Walter D. ClarkRichard R. Ramroth
    • Walter D. ClarkRichard R. Ramroth
    • G06K9/48G06K9/62
    • G06K9/3241G06K9/48
    • The present invention includes a method for matching a stored template with an image of an object. This is a final stage identification device in the at least one candidate array is received from a prescreener and/or intermediate discriminator. The candidate array includes a respective plurality of direction values at least partially defining a respective contour of an object within a two-dimensional image containing a possible target. The candidate array is compared with at least one stored template array. The stored template array includes a respective plurality of direction values at least partially defining an outline of a predetermined object of interest. The template array may include a plurality of template segment arrays such that various portions of the overall template are compared one at a time with the entire candidate array. The match between candidate and stored template may be scored based upon how well the template segments correspond to the candidate. Furthermore, the candidate may also be scored based upon a positional relationship between the template segments, while they are aligned with respective portions of the candidate.
    • 本发明包括用于将存储的模板与对象的图像进行匹配的方法。 这是从预处理器和/或中间鉴别器接收至少一个候选阵列中的最后阶段识别装置。 候选阵列包括相应的多个方向值,其至少部分地限定包含可能目标的二维图像内的对象的相应轮廓。 将候选阵列与至少一个存储的模板阵列进行比较。 存储的模板阵列包括相应的多个方向值,至少部分地限定预定的感兴趣对象的轮廓。 模板阵列可以包括多个模板段阵列,使得整个模板的各个部分一次一个地与整个候选阵列进行比较。 基于模板片段与候选者对应的多少,可以对候选和存储的模板之间的匹配进行评分。 此外,还可以基于模板段之间的位置关系对候选者进行评分,同时它们与候选者的各个部分对齐。
    • 5. 发明授权
    • System and method for analyzing a contour of an image by applying a Sobel operator thereto
    • 通过将Sobel算子应用于图像轮廓来分析图像的轮廓的系统和方法
    • US07116823B2
    • 2006-10-03
    • US10193413
    • 2002-07-10
    • Walter D. ClarkOmar AboutalibLiya Su
    • Walter D. ClarkOmar AboutalibLiya Su
    • G06K9/48
    • G06K9/4609G06T7/12G06T2207/10016G06T2207/10048G06T2207/20132
    • The present invention includes a method for analyzing an image wherein elements defining a path within a two-dimensional image are received from a prescreener. A Sobel operator may be applied to the region around each of the elements of the chain to obtain a corresponding array of gradient directions. An angle correction may be applied to any of the gradient directions that goes beyond the highest value (in radian measure; the Pi −Pi transition), to obtain an array of gradient directions free of any artificial jumps in value. The gradient direction array (Sobel chaincode) can have its bandwidth taken to determine a single number of straightness so as to identify extremely straight edges, (manmade objects) from less straight edges (natural objects). A similar process can be used to analyze contours for straight sections, which are also parallel. These two and other filters applied to the gradient array can be part of a feature suite, for feature space analysis.
    • 本发明包括一种用于分析图像的方法,其中从预分频器接收定义二维图像内的路径的元素。 可以将Sobel算子应用于链的每个元素周围的区域以获得相应的梯度方向阵列。 角度校正可以应用于任何超过最高值的梯度方向(以弧度测量; Pi -Pi转换),以获得没有任何人造跳跃值的梯度方向阵列。 梯度方向阵列(Sobel链码)可以采取其带宽来确定单个数量的直线度,以便从较不直边(自然对象)识别非常直的边缘(人造物体)。 可以使用类似的过程来分析直线段的轮廓,这也是平行的。 应用于梯度阵列的这两个和其他滤镜可以作为功能套件的一部分,用于特征空间分析。
    • 6. 发明授权
    • Logical and virtual nozzle-fire-restart-line for fluid-ejection device
    • 用于流体喷射装置的逻辑和虚拟喷嘴 - 重新启动线
    • US08770685B2
    • 2014-07-08
    • US13201460
    • 2009-02-22
    • Matthew A. ShepherdWalter D. ClarkTrudy Benjamin
    • Matthew A. ShepherdWalter D. ClarkTrudy Benjamin
    • B41J29/38
    • G06K15/102
    • A fluid-ejection device includes physical data lines, a controller, and a fluid-ejection mechanism. The physical data lines communicatively connect the controller and the fluid-ejection mechanism. The controller is to assert a logical and virtual nozzle-fire-restart line to denote that a first data sub-packet of a new data packet of nozzle data for a predetermined sequence of fluid-ejection nozzles of the fluid-ejection mechanism is being transmitted over the physical data lines. The fluid-ejection mechanism is to listen for the controller to assert the logical and virtual nozzle-fire-restart line, to discern that the first data sub-packet of the new data packet is being transmitted over the physical data lines.
    • 流体喷射装置包括物理数据线,控制器和流体喷射机构。 物理数据线通信地连接控制器和流体喷射机构。 控制器要断言一个逻辑和虚拟的喷嘴重启线,以表示正在传输流体喷射机构的预定顺序的流体喷射喷嘴的喷嘴数据的新数据分组的第一数据子分组 在物理数据线上。 流体喷射机构是监听控制器来断言逻辑和虚拟喷嘴重启线,以辨别新数据包的第一个数据子包是否通过物理数据线传输。
    • 10. 发明授权
    • Method and system for flying an aircraft
    • 飞机飞行方法和系统
    • US06793171B1
    • 2004-09-21
    • US10406047
    • 2003-04-02
    • Walter D. Clark
    • Walter D. Clark
    • B64D1100
    • B64C39/024B64C17/00B64C39/10B64C2201/028B64C2201/104B64C2201/146B64C2201/22
    • A method for flying an aircraft includes flying the aircraft at a first approximately level position and changing the flight of the aircraft from the first approximately level position to a climbing position. The method includes changing the flight of the aircraft from the climbing position to a second approximately level position to achieve a weightless state during the change to the second approximately level position and rolling the aircraft during the weightless state using one or more rolling control surfaces of the aircraft to establish a bank for a turn without creating adverse yaw. The aircraft does not include a deflectable spoiler, fin or rudder to counter adverse yaw. The rolling control surfaces of the aircraft may comprise elevons of the aircraft.
    • 用于飞行飞行器的方法包括以第一近似水平位置飞行飞行器,并且将飞行器的飞行从第一近似水平位置改变到攀爬位置。 该方法包括将飞行器的飞行从爬升位置改变到第二近似水平位置,以在改变到第二近似水平位置期间实现失重状态,并且在失重状态期间使用一个或多个滚动控制表面滚动飞行器 飞机建立一个转弯的银行,而不会造成不利的偏航。 飞机不包括可偏转的扰流板,翅片或方向舵以抵御不利的偏航。 飞行器的滚动控制表面可以包括飞机的升降机。