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    Method And Apparatus For Correcting For Vignetting In An Imaging System
    41.
    发明申请
    Method And Apparatus For Correcting For Vignetting In An Imaging System 有权
    在成像系统中校正晕影的方法和装置

    公开(公告)号：US20130342741A1

    公开(公告)日：2013-12-26

    申请号：US13528195

    申请日：2012-06-20

    申请人： Chengming Liu ,  Donghui Wu ,  Jizhang Shan

    发明人： Chengming Liu ,  Donghui Wu ,  Jizhang Shan

    IPC分类号： H04N9/083 ,  G06T5/00

    CPC分类号： H04N5/3572 ,  H04N9/045

    摘要： A method and apparatus for correcting for vignetting include associating each pixel in the two-dimensional array with a pair of polar coordinates referenced to a preselected origin pixel and partitioning the two-dimensional array of image pixels into a plurality of sectors. For each sector, the method includes computing an average R value, an average G value and an average B value; converting the average R value, the average G value and the average B value for each sector to logarithm space; comparing color gradients along a radial sector line to a gradient threshold; selecting gradients that do not exceed the threshold; using the selected gradients, estimating parameters of a model of a lens which produced the image; and, using the parameters, updating the model of the lens and correcting the image.

    摘要翻译： 用于校正渐晕的方法和装置包括将二维阵列中的每个像素与参考预选原始像素的一对极坐标相关联，并将图像像素的二维阵列划分成多个扇区。 对于每个扇区，该方法包括计算平均R值，平均G值和平均B值; 将每个扇区的平均R值，平均G值和平均B值转换为对数空间; 将沿着径向扇形线的颜色梯度与梯度阈值进行比较; 选择不超过阈值的梯度; 使用所选择的梯度，估计产生图像的透镜的模型的参数; 并使用参数，更新镜头的模型并校正图像。

    ORAL CARE IMPLEMENT WITH MECHANICAL ENERGY HARVESTING
    42.
    发明申请
    ORAL CARE IMPLEMENT WITH MECHANICAL ENERGY HARVESTING 有权
    具有机械能量采集的口腔护理实施

    公开(公告)号：US20120291213A1

    公开(公告)日：2012-11-22

    申请号：US13561550

    申请日：2012-07-30

    申请人： Donghui Wu ,  Sharon Kennedy ,  John P. Rouse ,  John Gatzemeyer

    发明人： Donghui Wu ,  Sharon Kennedy ,  John P. Rouse ,  John Gatzemeyer

    IPC分类号： A46B15/00 ,  A46B9/04

    CPC分类号： A46B15/0055 ,  A46B13/02 ,  A46B2200/1066 ,  H01L41/1134

    摘要： A mechanical energy harvesting toothbrush may employ circuits and devices to convert mechanical energy into electrical energy. Such conversion can be done using piezoelectric devices to convert stresses and strains from bending of the toothbrush head and/or bristles during use, and can be done using electromagnetic generators involving passing a magnet through a coil to induce current. The resulting electric energy may be rectified, and stored in a storage device, such as a capacitor or rechargeable battery. A switching circuit may be configured to detect the level of energy stored in the storage device, and to close an electrical connection when a predetermined level of energy (e.g., a charge) has been reached. The predetermined level may correspond to a desired amount of brushing. The closing of the electrical connection may be used to power output devices when that desired amount of brushing has been reached.

    摘要翻译： 机械能量收集牙刷可以采用电路和装置将机械能转换为电能。 这样的转换可以使用压电装置来实现，以在使用期间将应力和应变转换成牙刷头和/或刷毛的弯曲，并且可以使用涉及使磁体通过线圈使电流感应电流的电磁发生器来完成。 所得到的电能可以被整流，并存储在诸如电容器或可充电电池的存储装置中。 切换电路可以被配置为检测存储在存储装置中的能量的水平，并且当达到预定的能量水平（例如，电荷）时闭合电连接。 预定水平可以对应于所需的刷牙量。 当达到所需的刷涂量时，电连接的关闭可用于为输出装置供电。

    Optical position input system and method
    43.
    发明授权
    Optical position input system and method 有权
    光学位置输入系统及方法

    公开(公告)号：US08269750B2

    公开(公告)日：2012-09-18

    申请号：US12856161

    申请日：2010-08-13

    申请人： Jin Li ,  Guansong Liu ,  Donghui Wu ,  Jizhang Shan

    发明人： Jin Li ,  Guansong Liu ,  Donghui Wu ,  Jizhang Shan

    IPC分类号： G06F3/042

    CPC分类号： G06F3/0428

    摘要： Optical position input systems and methods determine positions of at least one pointing objects within an active touch area. At least three imager modules form images of at least one pointing objects within the active touch area. A processor computes a position of each of the at least one pointing object based upon the images formed by the at least three imager modules.

    摘要翻译： 光学位置输入系统和方法确定主动触摸区域内的至少一个指向对象的位置。 至少三个成像器模块在主动触摸区域内形成至少一个指向对象的图像。 处理器基于由至少三个成像器模块形成的图像来计算每个至少一个指向对象的位置。

    Oral care implement with mechanical energy harvesting
    44.
    发明授权
    Oral care implement with mechanical energy harvesting 有权
    口腔护理器具采用机械能量收集

    公开(公告)号：US08261399B2

    公开(公告)日：2012-09-11

    申请号：US12146090

    申请日：2008-06-25

    申请人： Donghui Wu ,  Sharon Kennedy ,  John P. Rouse ,  John Gatzemeyer

    发明人： Donghui Wu ,  Sharon Kennedy ,  John P. Rouse ,  John Gatzemeyer

    IPC分类号： A46B9/04

    CPC分类号： A46B15/0055 ,  A46B13/02 ,  A46B2200/1066 ,  H01L41/1134

    摘要： A mechanical energy harvesting toothbrush may employ circuits and devices to convert mechanical energy into electrical energy. Such conversion can be done using piezoelectric devices to convert stresses and strains from bending of the toothbrush head and/or bristles during use, and can be done using electromagnetic generators involving passing a magnet through a coil to induce current. The resulting electric energy may be rectified, and stored in a storage device, such as a capacitor or rechargeable battery. A switching circuit may be configured to detect the level of energy stored in the storage device, and to close an electrical connection when a predetermined level of energy (e.g., a charge) has been reached. The predetermined level may correspond to a desired amount of brushing (e.g., taking into account stroke length and force, and the number of strokes), and the closing of the electrical connection may be used to power output devices when that desired amount of brushing has been reached.

    摘要翻译： 机械能量收集牙刷可以采用电路和装置将机械能转换为电能。 这样的转换可以使用压电装置来实现，以在使用期间将应力和应变转换成牙刷头和/或刷毛的弯曲，并且可以使用涉及使磁体通过线圈使电流感应电流的电磁发生器来完成。 所得到的电能可以被整流，并存储在诸如电容器或可充电电池的存储装置中。 切换电路可以被配置为检测存储在存储装置中的能量的水平，并且当达到预定的能量水平（例如，电荷）时闭合电连接。 预定水平可以对应于所需的刷牙量（例如，考虑行程长度和力以及行程数），并且当所需的刷涂量具有 已经到达

    Optical Position Input System And Method
    46.
    发明申请
    Optical Position Input System And Method 有权
    光学位置输入系统和方法

    公开(公告)号：US20120038588A1

    公开(公告)日：2012-02-16

    申请号：US12856161

    申请日：2010-08-13

    申请人： Jin Li ,  Guansong Liu ,  Donghui Wu ,  Jizhang Shan

    发明人： Jin Li ,  Guansong Liu ,  Donghui Wu ,  Jizhang Shan

    IPC分类号： G06F3/041

    CPC分类号： G06F3/0428

    摘要： Optical position input systems and methods determine positions of at least one pointing objects within an active touch area. At least three imager modules form images of at least one pointing objects within the active touch area. A processor computes a position of each of the at least one pointing object based upon the images formed by the at least three imager modules.

    摘要翻译： 光学位置输入系统和方法确定主动触摸区域内的至少一个指向对象的位置。 至少三个成像器模块在主动触摸区域内形成至少一个指向对象的图像。 处理器基于由至少三个成像器模块形成的图像来计算每个至少一个指向对象的位置。

    Alternative Color Image Array And Associated Methods
    47.
    发明申请
    Alternative Color Image Array And Associated Methods 有权
    替代彩色图像阵列和相关方法

    公开(公告)号：US20110279705A1

    公开(公告)日：2011-11-17

    申请号：US13035785

    申请日：2011-02-25

    申请人： Jiangtao Kuang ,  Donghui Wu ,  Jizhang Shan

    发明人： Jiangtao Kuang ,  Donghui Wu ,  Jizhang Shan

    IPC分类号： H04N5/235 ,  H04N5/335 ,  H01L27/146

    CPC分类号： H04N9/045 ,  H01L27/14625 ,  H04N5/343 ,  H04N2209/045

    摘要： An image sensor includes an array of light sensitive elements and a filter array. Each filter element is in optical communication with a respective light sensitive element. The image sensor receives filtered light having a repeating pattern. Light sensitive elements in at least two successive rows alternately receive light having a first color and a second color, and light sensitive elements in common columns of the successive rows alternately receive light having the first color and the second color. Light sensitive elements in at least two additional successive rows alternately receive light having a third and a fourth color, and light sensitive elements in common columns of the additional successive rows alternately receive light having the third color and the fourth color. Output values of pairs of sampled light sensitive elements receiving light of a common color and from successive rows are combined to generate a down-sampled image.

    摘要翻译： 图像传感器包括光敏元件阵列和滤光片阵列。 每个滤光元件与相应的光敏元件光学连通。 图像传感器接收具有重复图案的滤波光。 在至少两个连续行中的感光元件交替地接收具有第一颜色和第二颜色的光，并且连续行的公共列中的光敏元件交替地接收具有第一颜色和第二颜色的光。 在至少两个附加连续行中的感光元件交替地接收具有第三和第四颜色的光，并且附加连续行的公共列中的光敏元件交替地接收具有第三颜色和第四颜色的光。 接收公共颜色光和连续行的采样光敏元件对的输出值被组合以产生下采样图像。