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    • 1. 发明授权
    • Hinge masking device and method
    • 铰链屏蔽装置及方法
    • US5224240A
    • 1993-07-06
    • US863944
    • 1992-04-06
    • David C. SmithAlbert BraigAlfred J. Bannister
    • David C. SmithAlbert BraigAlfred J. Bannister
    • B05B15/04E05D11/00
    • E05D11/0054B05B15/045E05Y2900/132Y10T16/533Y10T16/5335
    • A half hinge paint masking cover for doors, and/or door frames is provided as a one piece body molded of a rigid thermoplastic resin. The device includes two molded half cavities each cavity being connected by a thin flexible membrane of the molded material. The first cavity area covers the back surface area of the hinge barrel and has two half end shields each of which cover half the edge area of the hinge barrel and the exposed edge area of the hinge plate. The second cavity half covers the front surface half of the hinge barrel and has two end shields which cover half the edge area of the hinge barrel. A portion connected to the second cavity half includes a long flat area which covers the exposed face side of the hinge plate. The two half cavities are secured to each other by folding along the flexible membrane and engulfing the door or frame half hinge until pins projecting from tops on one half engage and protrude through holes which are located on tabs on the other half.
    • 提供了用于门和/或门框的半铰链油漆掩蔽罩,作为由刚性热塑性树脂模制的一体式主体。 该装置包括两个模制的半腔,每个空腔通过模制材料的薄柔性膜连接。 第一空腔区域覆盖铰链筒的后表面区域并且具有两个半端罩,每个半端罩覆盖铰链筒的边缘区域的一半和铰链板的暴露的边缘区域。 第二腔半部分覆盖铰链筒的前表面一半,并且具有两个端盖,其覆盖铰链筒的边缘区域的一半。 连接到第二空腔半部的部分包括覆盖铰链板的暴露的面侧的长平坦区域。 两个半腔通过沿着柔性膜折叠并且吞没门或框架半铰链而彼此固定,直到从一个半部的顶部突出的销接合并突出通过位于另一半的突出部上的孔。
    • 7. 发明授权
    • Remotely-adjustable support apparatus and methods
    • 远程可调支持装置和方法
    • US07264226B2
    • 2007-09-04
    • US10750407
    • 2003-12-30
    • David C. SmithRonald D. Curl
    • David C. SmithRonald D. Curl
    • A62B3/00
    • F16M11/42F16M11/046F16M11/18
    • Remotely-adjustable support apparatus and methods are disclosed. In one embodiment, an apparatus includes a primary support and a secondary support moveably coupled to the primary support. The secondary support includes a cradle member adapted to engage the workpiece. The apparatus further includes a drive assembly operatively coupled to the secondary support and adapted to move the secondary support relative to the primary support. A control device is remotely positionable with respect to the drive assembly and operatively coupled to the drive assembly. The control device is adapted to transmit at least one control signal to the drive assembly to move the secondary support relative to the primary support.
    • 公开了可远程调节的支撑装置和方法。 在一个实施例中,装置包括主支撑件和可移动地联接到主支撑件的辅助支撑件。 辅助支撑件包括适于接合工件的托架构件。 该装置还包括可操作地联接到次级支撑件并且适于相对于主支撑件移动辅助支撑件的驱动组件。 控制装置相对于驱动组件可远程定位并且可操作地联接到驱动组件。 控制装置适于将至少一个控制信号发送到驱动组件以相对于主支撑件移动辅助支撑件。
    • 9. 发明授权
    • Voice activity detector
    • 语音活动检测器
    • US06556967B1
    • 2003-04-29
    • US09266811
    • 1999-03-12
    • Douglas J. NelsonDavid C. SmithJeffrey L. Townsend
    • Douglas J. NelsonDavid C. SmithJeffrey L. Townsend
    • G10L1520
    • G10L25/78
    • The present invention is a device for and method of detecting voice activity by receiving a signal; computing the absolute value of the signal; squaring the absolute value; low pass filtering the squared result; computing the mean of the filtered signal; subtracting the mean from the filtered result; padding the mean subtracted result with zeros to form a value that is a power of two if the result is not already a power of two; computing a DFFT of the power of two result; normalizing the DFFT result of the last step; computing a mean of the normalization; computing a variance of the normalization; computing a power ratio of the normalization; classifying the mean, variance and power ratio as speech or non-speech based on how this feature vector compares to similarly constructed feature vectors of known speech and non-speech. The voice activity detector includes an absolute value squarer; a low pass filter; a mean subtractor; a zero padder; a DFFT; a normalizer; and a classifier.
    • 本发明是一种通过接收信号来检测语音活动的装置和方法, 计算信号的绝对值; 平方的绝对值; 低通滤波平方结果; 计算滤波信号的平均值; 从滤波结果中减去均值; 使用零填充平均减去的结果,以形成一个值,如果结果还不是2的幂,则为2的幂; 计算两个结果的幂的DFFT; 归一化最后一步的DFFT结果; 计算正常化的平均值; 计算归一化的方差; 计算正常化的功率比; 基于该特征向量与已知语音和非语音的类似构造的特征向量进行比较,将均值,方差和功率比分类为语音或非语音。 语音活动检测器包括绝对值平方; 低通滤波器; 平均减法器 零pad 一个DFFT; 归一化器 和分类器。
    • 10. 发明授权
    • Apparatus for applying line striping chemicals and reflective beads to a surface
    • 将线条化学品和反射珠应用于表面的装置
    • US06547158B1
    • 2003-04-15
    • US10194600
    • 2002-07-12
    • David C. Smith
    • David C. Smith
    • B05B128
    • E01C23/166E01C23/22
    • A three wheeled carriage supports an air compressor, a container for reflective glass beads and a primary hose enclosing secondary hoses delivering plural paint components to a spray gun. The three wheeled carriage has a handle bar operable by one person with three switches, one to control the flow of reflective glass beads to a bead spray gun, another to control the flow of paint components to form a stripe by external mix of the paint components and a third to control an angle of turn for a front wheel. A trailer follows the three wheeled carriage, the trailer containing an air compressor and receptacles for two paint components and input into the secondary hoses. Wheeled dollies support the primary hose between the trailer and the three wheeled carriage.
    • 三轮支架支撑空气压缩机,用于反射玻璃珠的容器和包含向喷枪提供多个涂料组分的次级软管的主软管。 三轮托架具有可由一个人操作的手柄,其具有三个开关,一个用于控制反射玻璃珠到珠喷枪的流动,另一个用于通过外部混合的涂料组分来控制涂料组分的流动以形成条纹 以及用于控制前轮的转弯角度的第三。 拖车遵循三轮托架,拖车内装有空气压缩机和两个油漆部件的容器,并输入二次软管。 轮式货车支撑拖车和三轮车厢之间的主要软管。