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公开(公告)号：US06933661B2
公开(公告)日：2005-08-23
申请号：US10271454
申请日：2002-10-16
IPC分类号： H01L41/053 , H02N2/04 , H01L41/08
CPC分类号： H01L41/053
摘要： A piezoelectric actuator and a method of assembling and employing a piezoelectric actuator. This method comprises the steps of positioning an expandable piezoelectric material inside a case, and enclosing a vaporizable liquid in the case. The case is positioned in a high temperature environment; and the liquid vaporizes, in that high temperature environment, over a given period of time, to maintain the temperature of the piezoelectric material below a given value for said period of time. Preferably, the vaporizing liquid maintains the temperature of the piezoelectric material substantially constant over that period of time. Also, preferably the case is provided with a pressure responsive valve that opens and closes, in the high temperature environment, to expose the liquid to that environment and control the vaporization of the liquid to maintain the temperature of the piezoelectric material substantially constant over the period of time.
摘要翻译： 压电致动器以及组装和使用压电致动器的方法。 该方法包括将可膨胀压电材料定位在壳体内并将壳体中的可汽化液体包围的步骤。 该案件位于高温环境中; 并且在该高温环境中，液体在给定的时间内蒸发，以将压电材料的温度保持在给定值以下一段时间。 优选地，汽化液体在该时间段内保持压电材料的温度基本上恒定。 此外，优选地，在高温环境中优选地设置有打开和关闭的压力响应阀，以将液体暴露于该环境并且控制液体的蒸发以在压缩材料的温度保持基本上恒定的期间 的时间。
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公开(公告)号：US07421112B2
公开(公告)日：2008-09-02
申请号：US10800342
申请日：2004-03-12
IPC分类号： G06K9/00
CPC分类号： G01S17/89 , G01S17/026
摘要： A cargo sensing system is configured to determine if cargo is present within a container. In one implementation, the cargo sensing system senses lines within an image of a cargo space. The lines may be straight, curved or otherwise configured, and are evaluated for indications of the presence of cargo within the cargo space. In a first implementation of the cargo sensing system, the lines within the cargo space are formed by a laser tracing over a predetermined projection pattern. In a second implementation of the cargo sensing system, the lines sensed are formed by intersection of planes defining the cargo space.
摘要翻译： 货物感测系统被配置为确定货物是否存在于容器内。 在一个实施中，货物感测系统感测货物空间的图像内的线。 线可以是直的，弯曲的或以其他方式构造的，并且被评估用于在货物空间内存在货物的指示。 在货物感测系统的第一实施方案中，货物空间内的线通过在预定突起图案上的激光跟踪形成。 在货物感测系统的第二实施方案中，感测的线路由限定货物空间的平面的相交构成。
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公开(公告)号：US07746379B2
公开(公告)日：2010-06-29
申请号：US10335372
申请日：2002-12-31
申请人： Joseph E. Jesson , Rick Cobello , Andrew J. Calver
发明人： Joseph E. Jesson , Rick Cobello , Andrew J. Calver
CPC分类号： G06Q10/087
摘要： A camera is used to sense cargo in a cargo space. An image of at least a portion of a cargo space is captured using the camera, and a digital signal processor classifies the image as representing an empty cargo space or a non-empty cargo space. Additionally, a type of cargo represented by the captured image may also be classified by the digital signal processor and an indication of the type of cargo output.
摘要翻译： 摄像机用于检测货物空间中的货物。 使用照相机捕获货物空间的至少一部分的图像，并且数字信号处理器将图像分类为表示空的货物空间或非空货物空间。 此外，由拍摄图像表示的一种货物也可以通过数字信号处理器和货物输出类型的指示来分类。
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