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    • 1. 发明授权
    • Color detection using grayscale and position information
    • 使用灰度和位置信息进行颜色检测
    • US07313271B2
    • 2007-12-25
    • US11007498
    • 2004-12-07
    • Boon Keat TanJlin Cheang CheongChung Min Thor
    • Boon Keat TanJlin Cheang CheongChung Min Thor
    • G06K9/00
    • H04N1/465H04N1/6033
    • The color of a surface is determined by tracking the position of the surface using grayscale image sensing and then using captured grayscale image information, position information, and grayscale-to-color conversion information to determine color. In one embodiment, the technique requires establishing grayscale-to-color conversion information and a relationship between position and the grayscale-to-color conversion information. A calibration pattern is printed on a piece of paper and the surface of the paper is illuminated. Grayscale image information and position information related to the surface is generated in response to the illumination. Color-specific portions of the grayscale-to-color conversion information that are to be used in color determination are selected based on the position information. Grayscale image information related to the calibration pattern is then compared to the selected color-specific portions of the grayscale-to-color conversion information to determine the color of the calibration pattern.
    • 通过使用灰度图像感测跟踪表面的位置,然后使用捕获的灰度图像信息,位置信息和灰度到颜色转换信息来确定颜色来确定表面的颜色。 在一个实施例中,该技术需要建立灰度到颜色转换信息以及位置与灰度到颜色转换信息之间的关系。 校准图案印在一张纸上,纸张的表面被照亮。 响应于照明产生与表面相关的灰度图像信息和位置信息。 基于位置信息来选择要用于颜色确定的灰度到颜色转换信息的颜色特定部分。 然后将与校准图案相关的灰度图像信息与灰度到颜色转换信息的所选颜色特定部分进行比较,以确定校准图案的颜色。
    • 2. 发明授权
    • Puck-based input device with rotation detection
    • 基于Puck的输入设备,具有旋转检测功能
    • US07304637B2
    • 2007-12-04
    • US10931113
    • 2004-08-30
    • Jonah HarleyDale Schroeder
    • Jonah HarleyDale Schroeder
    • G09G5/00
    • G06F3/03547G05G2009/04714G06F3/03543G06F3/03548G06F3/044
    • The present invention includes a pointing device having a first surface on which a puck field of motion is defined, a moveable puck, and a position detector. The moveable puck is confined to move on the first surface within the puck field of motion. The position detector determines a position of the puck in the puck field of motion and an angle of rotation of the puck about an axis perpendicular to the first surface. In one embodiment, the puck includes a puck electrode on a second surface on the puck that is parallel to the first surface. The first surface includes first, second, and third electrodes that are parallel to the puck electrode, the puck electrode overlying a portion of each of the first, second, and third electrodes.
    • 本发明包括具有第一表面的定点装置,在其上限定了运动的球场,可移动的圆盘和位置检测器。 可移动的冰球局限于在冰球运动范围内的第一表面上移动。 位置检测器确定圆盘在圆球运动领域的位置和圆盘围绕垂直于第一表面的轴线的旋转角度。 在一个实施例中,所述圆盘包括在所述圆盘上与所述第一表面平行的第二表面上的圆盘电极。 所述第一表面包括平行于所述圆盘电极的第一,第二和第三电极,所述圆盘电极覆盖所述第一,第二和第三电极中的每一个的一部分。
    • 6. 发明授权
    • Apparatus for controlling a screen pointer that distinguishes between ambient light and light from its light source
    • 用于控制屏幕指针的装置,其区分环境光和来自其光源的光
    • US07295186B2
    • 2007-11-13
    • US10341710
    • 2003-01-14
    • Michael J. Brosnan
    • Michael J. Brosnan
    • G09G5/08
    • G06F3/0317
    • An apparatus for controlling the position of a screen pointer for an electronic device having a display screen, includes a light source for illuminating an imaging surface with a plurality of light pulses, thereby generating reflected light pulses. A detection circuit is configured to sense light, distinguish between the reflected pulses and ambient light, and generate a low signal indication if the magnitude of the reflected pulses falls below a threshold value. An optical motion sensor generates digital images based on the reflected pulses. The motion sensor is configured to generate movement data based on the digital images. The movement data is indicative of relative motion between the imaging surface and the apparatus.
    • 一种用于控制具有显示屏的电子设备的屏幕指针的位置的装置,包括用于利用多个光脉冲照射成像表面的光源,从而产生反射的光脉冲。 检测电路被配置为感测光,区分反射脉冲和环境光,并且如果反射脉冲的幅度低于阈值,则产生低信号指示。 光学运动传感器基于反射脉冲产生数字图像。 运动传感器被配置为基于数字图像生成移动数据。 运动数据表示成像表面和装置之间的相对运动。