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    Electronic device having an image-based data input system
    1.
    发明授权
    Electronic device having an image-based data input system 失效
    具有基于图像的数据输入系统的电子设备

    公开(公告)号：US07176905B2

    公开(公告)日：2007-02-13

    申请号：US10368717

    申请日：2003-02-19

    申请人： Izhak Baharav ,  Russell M. Iimura ,  Xuemei Zhang ,  Dietrich W. Vook ,  Ramakrishna Kakarala

    发明人： Izhak Baharav ,  Russell M. Iimura ,  Xuemei Zhang ,  Dietrich W. Vook ,  Ramakrishna Kakarala

    IPC分类号： G09G5/00

    CPC分类号： G06F3/0426 ,  G06F2203/04109

    摘要： Electronic devices having image-based data input systems are described. In one aspect, an electronic device includes a window, multiple indicia, an image sensor, and a data input processor. The window has a contact surface with an input region. The multiple indicia are viewable in the input region of the contact surface. The image sensor is constructed and arranged to produce image signals corresponding to images of the input region. The data input processor is coupled to the image sensor and is operable to produce input signals based on image signals produced by the image sensor and a mapping between areas of the input region images and locations of the input indicia.

    摘要翻译： 描述具有基于图像的数据输入系统的电子设备。 一方面，电子设备包括窗口，多个标记，图像传感器和数据输入处理器。 窗口具有与输入区域的接触面。 多个标记可在接触表面的输入区域中看到。 图像传感器被构造和布置成产生对应于输入区域的图像的图像信号。 数据输入处理器耦合到图像传感器，并且可操作以基于由图像传感器产生的图像信号和输入区域图像的区域与输入标记的位置之间的映射来产生输入信号。

    System for determining pointer position, movement, and angle
    2.
    发明授权
    System for determining pointer position, movement, and angle 有权
    用于确定指针位置，运动和角度的系统

    公开(公告)号：US07557799B2

    公开(公告)日：2009-07-07

    申请号：US10870881

    申请日：2004-06-17

    申请人： Richard L. Baer ,  Ramakrishna Kakarala ,  Dietrich W. Vook ,  Xuemei Zhang ,  Izhak Baharav ,  Paul L. Corredoura

    发明人： Richard L. Baer ,  Ramakrishna Kakarala ,  Dietrich W. Vook ,  Xuemei Zhang ,  Izhak Baharav ,  Paul L. Corredoura

    IPC分类号： G09G5/08

    CPC分类号： G06F3/03544 ,  G06F3/0321 ,  G06F3/0395

    摘要： An a data input system includes an encoded pad having position encoding and a data input device adapted to image a portion of the encoded pad to determine position and orientation of the data input device relative to the encoded pad. The encoding pad includes a plurality of correlation windows. Each correlation window includes a primary encoding marker in form of vertical line segment and a set of secondary encoding markers in form of diagonal line segments, at least one diagonal line segment intersecting the vertical line segment at an intersection angle. Spacing of the diagonal line segments encodes the X-axis position of the input device relative to the encoding pad. Intersection angle encodes the Y-axis position of the input device relative to the encoding pad. Angle of the primary encoding marker vertical line segment within the frame of the captured image encodes the angular orientation of the input device relative to the axes of the encoded pad.

    摘要翻译： 数据输入系统包括具有位置编码的编码焊盘和适于对编码焊盘的一部分进行成像以确定数据输入装置相对于编码焊盘的位置和方位的数据输入装置。 编码块包括多个相关窗口。 每个相关窗口包括垂直线段形式的主编码标记和以对角线段形式的一组次级编码标记，至少一个与交叉角相交的垂直线段的对角线段。 对角线段的间距编码输入设备相对于编码区的X轴位置。 交叉角度相对于编码垫编码输入装置的Y轴位置。 捕获图像的帧内的主编码标记垂直线段的角度编码输入设备相对于编码的焊盘的轴的角度取向。

    System for determining pointer position, movement, and angle
    4.
    发明授权
    System for determining pointer position, movement, and angle 有权
    用于确定指针位置，运动和角度的系统

    公开(公告)号：US08279179B2

    公开(公告)日：2012-10-02

    申请号：US12477404

    申请日：2009-06-03

    申请人： Richard L. Baer ,  Ramakrishna Kakarala ,  Dietrich W. Vook ,  Xuemei Zhang ,  Izhak Baharav ,  Paul L. Corredoura

    发明人： Richard L. Baer ,  Ramakrishna Kakarala ,  Dietrich W. Vook ,  Xuemei Zhang ,  Izhak Baharav ,  Paul L. Corredoura

    IPC分类号： G09G5/08

    CPC分类号： G06F3/03544 ,  G06F3/0321 ,  G06F3/0395

    摘要： An a data input system includes an encoded pad having position encoding and a data input device adapted to image a portion of the encoded pad to determine position and orientation of the data input device relative to the encoded pad. The encoding pad includes a plurality of correlation windows. Each correlation window includes a primary encoding marker in form of vertical line segment and a set of secondary encoding markers in form of diagonal line segments, at least one diagonal line segment intersecting the vertical line segment at an intersection angle. Spacing of the diagonal line segments encodes the X-axis position of the input device relative to the encoding pad. Intersection angle encodes the Y-axis position of the input device relative to the encoding pad. Angle of the primary encoding marker vertical line segment within the frame of the captured image encodes the angular orientation of the input device relative to the axes of the encoded pad.

    摘要翻译： 数据输入系统包括具有位置编码的编码焊盘和适于对编码焊盘的一部分进行成像以确定数据输入装置相对于编码焊盘的位置和方位的数据输入装置。 编码块包括多个相关窗口。 每个相关窗口包括垂直线段形式的主编码标记和以对角线段形式的一组次级编码标记，至少一个与交叉角相交的垂直线段的对角线段。 对角线段的间距编码输入设备相对于编码区的X轴位置。 交叉角度相对于编码垫编码输入装置的Y轴位置。 捕获图像的帧内的主编码标记垂直线段的角度编码输入设备相对于编码的焊盘的轴的角度取向。

    SYSTEM FOR DETERMINING POINTER POSITION, MOVEMENT, AND ANGLE
    5.
    发明申请
    SYSTEM FOR DETERMINING POINTER POSITION, MOVEMENT, AND ANGLE 有权
    用于确定点位置，运动和角度的系统

    公开(公告)号：US20090237274A1

    公开(公告)日：2009-09-24

    申请号：US12477404

    申请日：2009-06-03

    申请人： Richard L. Baer ,  Ramakrishna Kakarala ,  Dietrich W. Vook ,  Xuemei Zhang ,  Izhak Baharav ,  Paul L. Corredoura

    发明人： Richard L. Baer ,  Ramakrishna Kakarala ,  Dietrich W. Vook ,  Xuemei Zhang ,  Izhak Baharav ,  Paul L. Corredoura

    IPC分类号： H03M1/22

    CPC分类号： G06F3/03544 ,  G06F3/0321 ,  G06F3/0395

    摘要： An a data input system includes an encoded pad having position encoding and a data input device adapted to image a portion of the encoded pad to determine position and orientation of the data input device relative to the encoded pad. The encoding pad includes a plurality of correlation windows. Each correlation window includes a primary encoding marker in form of vertical line segment and a set of secondary encoding markers in form of diagonal line segments, at least one diagonal line segment intersecting the vertical line segment at an intersection angle. Spacing of the diagonal line segments encodes the X-axis position of the input device relative to the encoding pad. Intersection angle encodes the Y-axis position of the input device relative to the encoding pad. Angle of the primary encoding marker vertical line segment within the frame of the captured image encodes the angular orientation of the input device relative to the axes of the encoded pad.

    摘要翻译： 数据输入系统包括具有位置编码的编码焊盘和适于对编码焊盘的一部分进行成像以确定数据输入装置相对于编码焊盘的位置和方位的数据输入装置。 编码块包括多个相关窗口。 每个相关窗口包括垂直线段形式的主编码标记和以对角线段形式的一组次级编码标记，至少一个与交叉角相交的垂直线段的对角线段。 对角线段的间距编码输入设备相对于编码区的X轴位置。 交叉角度相对于编码垫编码输入装置的Y轴位置。 捕获图像的帧内的主编码标记垂直线段的角度编码输入设备相对于编码的焊盘的轴的角度取向。

    Bad pixel detection and correction in an image sensing device
    6.
    发明授权
    Bad pixel detection and correction in an image sensing device 有权
    图像感测装置中的不良像素检测和校正

    公开(公告)号：US06737625B2

    公开(公告)日：2004-05-18

    申请号：US09895627

    申请日：2001-06-28

    申请人： Izhak Baharav ,  Ramakrishna Kakarala ,  Xuemei Zhang ,  Dietrich Werner Vook

    发明人： Izhak Baharav ,  Ramakrishna Kakarala ,  Xuemei Zhang ,  Dietrich Werner Vook

    IPC分类号： H04N5335

    CPC分类号： H04N5/367

    摘要： A sensor includes an array of photodetectors each generating an output signal of pixel data indicative of incident light intensity. This pixel data is read out from the array one line at a time and stored in a line buffer. A bad pixel processor includes a first buffer that stores pixel data obtained from the line buffer for a certain pixel in a currently read out line and pixel signal light data for pixels adjacent to the certain pixel.

    摘要翻译： 传感器包括一组光电检测器，每个光电检测器产生指示入射光强度的像素数据的输出信号。 该像素数据一次从阵列中读出，并存储在行缓冲器中。 坏像素处理器包括第一缓冲器，其存储从当前读出的行中的某个像素的行缓冲器获得的像素数据，以及用于与特定像素相邻的像素的像素信号光数据。

    System and method for shape reconstruction from optical images
    7.
    发明授权
    System and method for shape reconstruction from optical images 有权
    光学图像形状重建的系统和方法

    公开(公告)号：US07352892B2

    公开(公告)日：2008-04-01

    申请号：US10392948

    申请日：2003-03-20

    申请人： Xuemei Zhang ,  Ramakrishna Kakarala ,  Izhak Baharav

    发明人： Xuemei Zhang ,  Ramakrishna Kakarala ,  Izhak Baharav

    IPC分类号： G06K9/00

    CPC分类号： G06T7/586 ,  G01N21/8806 ,  G01N21/95684

    摘要： Reconstructing the shape of the surface of an object in greater than two dimensions is performed using a noise-tolerant reconstruction process and/or a multi-resolution reconstruction process. The noise-tolerant reconstruction process can be a Bayesian reconstruction process that adds noise information representing the noise distribution in optical image(s) of the object to surface gradient information estimated from the images to determine surface height information that defines the shape of the surface of the object in greater than two dimensions. In the multi-resolution reconstruction process, for each resolution of the image, the surface gradient information is estimated and the surface height information is calculated using the estimated surface gradient information. To obtain the final surface height map, the surface height information from each resolution is combined to reconstruct the shape of the surface of the object in greater than two dimensions. The multi-resolution reconstruction process can be used with the Bayesian reconstruction process or with another decomposition process, such as a wavelet decomposition process.

    摘要翻译： 使用耐噪声重建过程和/或多分辨率重建过程来执行大于二维重建对象表面的形状。 噪声容忍重构过程可以是贝叶斯重构过程，其将从物体的光学图像中的噪声分布的噪声信息添加到从图像估计的表面梯度信息，以确定限定表面的形状的表面高度信息 该对象大于二维。 在多分辨率重建处理中，对于图像的每个分辨率，估计表面梯度信息，并且使用估计的表面梯度信息来计算表面高度信息。 为了获得最终的表面高度图，组合来自每个分辨率的表面高度信息，以大于二维重建对象表面的形状。 多分辨率重建过程可以与贝叶斯重构过程或者与其他分解过程（如小波分解过程）一起使用。