公开(公告)号：US20100073326A1

公开(公告)日：2010-03-25

申请号：US12235205

申请日：2008-09-22

申请人： Nigel Keam ,  Prafulla Masalkar

发明人： Nigel Keam ,  Prafulla Masalkar

IPC分类号： G06F3/042

CPC分类号： G06F3/0418 ,  G06F3/0425

摘要： Embodiments related to the calibration of an optical touch-sensitive display device are disclosed. For example, one disclosed embodiment comprises a method of calibrating an image sensor, wherein the method comprises placing a photoluminescent panel over the display surface, and illuminating a target location on the display surface with visible light. Infrared light that is emitted by the panel in response to the illumination of the display surface is received via the image sensor. The received light then is used to calibrate the device.

摘要翻译： 公开了与光学式敏感显示装置的校准有关的实施例。 例如，一个公开的实施例包括校准图像传感器的方法，其中该方法包括将光致发光面板放置在显示表面上，并用可见光照亮显示表面上的目标位置。 通过图像传感器接收由面板响应于显示表面的照明而发射的红外线。 接收的光然后用于校准设备。

公开(公告)号：US20090091553A1

公开(公告)日：2009-04-09

申请号：US11866562

申请日：2007-10-03

申请人： Nigel Keam ,  John Lewis ,  Andrew D. Wilson

发明人： Nigel Keam ,  John Lewis ,  Andrew D. Wilson

IPC分类号： G06F3/042

CPC分类号： G06F3/0423 ,  G06F2203/04109

摘要： The detection of touch on an optical touch-sensitive device is disclosed. For example, one disclosed embodiment comprises a touch-sensitive device including a display screen, a laser, and a scanning mirror configured to scan light from the laser across the screen. The touch-sensitive device also includes a position-sensitive device and optics configured to form an image of at least a portion of the screen on the position-sensitive device. A location of an object relative to the screen may be determined by detecting a location on the position-sensitive device of laser light reflected by the object.

摘要翻译： 公开了一种在光学敏感设备上的触摸检测。 例如，一个所公开的实施例包括触敏设备，其包括显示屏幕，激光器和被配置为扫描来自激光器的屏幕上的光的扫描镜。 触敏设备还包括位置敏感设备和被配置为在位置敏感设备上形成屏幕的至少一部分的图像的光学元件。 物体相对于屏幕的位置可以通过检测由位于物体的反射的激光的位置敏感装置上的位置来确定。

公开(公告)号：US08289300B2

公开(公告)日：2012-10-16

申请号：US12617963

申请日：2009-11-13

申请人： Nigel Keam

发明人： Nigel Keam

IPC分类号： G06F3/042

CPC分类号： G06F3/0425 ,  G06F3/0383

摘要： Embodiments are disclosed that relate to the correction of an image acquired in a rolling image capture system for ambient light. One embodiment provides a device comprising a screen, a rolling image capture system, a local light source, and a controller. The controller is configured to operate the local light source while acquiring first and second frames of image data to integrate each field of image sensor pixels for a duration of local+ambient light and for a duration of ambient light such that a sum tlocal+ambient+tambient for the first frame is different than a sum tlocal+ambient+tambient for the second frame for each field of pixels. The controller is further configured to determine an ambient light value, and to adjust one or more pixels based upon the ambient light value.

摘要翻译： 公开了涉及在用于环境光的滚动图像捕获系统中获取的图像的校正的实施例。 一个实施例提供一种包括屏幕，滚动图像捕获系统，局部光源和控制器的装置。 控制器被配置为在获取第一和第二帧图像数据的同时操作本地光源，以在局部+环境光的持续时间和环境光的持续时间内对图像传感器像素的每个场进行积分，使得总和+环境+ 对于第一帧的声音与针对每个像素场的第二帧的和tlocal + ambient + tambient不同。 控制器还被配置为确定环境光值，并且基于环境光值来调整一个或多个像素。

公开(公告)号：US08184101B2

公开(公告)日：2012-05-22

申请号：US11866562

申请日：2007-10-03

申请人： Nigel Keam ,  John Lewis ,  Andrew D Wilson

发明人： Nigel Keam ,  John Lewis ,  Andrew D Wilson

IPC分类号： G09G5/00

CPC分类号： G06F3/0423 ,  G06F2203/04109

摘要： The detection of touch on an optical touch-sensitive device is disclosed. For example, one disclosed embodiment comprises a touch-sensitive device including a display screen, a laser, and a scanning mirror configured to scan light from the laser across the screen. The touch-sensitive device also includes a position-sensitive device and optics configured to form an image of at least a portion of the screen on the position-sensitive device. A location of an object relative to the screen may be determined by detecting a location on the position-sensitive device of laser light reflected by the object.

摘要翻译： 公开了一种在光学敏感设备上的触摸检测。 例如，一个所公开的实施例包括触敏设备，其包括显示屏幕，激光器和被配置为扫描来自激光器的屏幕上的光的扫描镜。 触敏设备还包括位置敏感设备和被配置为在位置敏感设备上形成屏幕的至少一部分的图像的光学元件。 物体相对于屏幕的位置可以通过检测由位于物体的反射的激光的位置敏感装置上的位置来确定。

公开(公告)号：US08125458B2

公开(公告)日：2012-02-28

申请号：US11864650

申请日：2007-09-28

申请人： Nigel Keam

发明人： Nigel Keam

IPC分类号： G06F3/041 ,  G06K9/46 ,  G06K9/38 ,  G06K9/36

CPC分类号： G06F3/0425 ,  G06F3/0416 ,  G06F3/04883 ,  G06F2203/04109

摘要： The determination of an orientation of a finger touching a touch-sensitive device is disclosed. In one embodiment, a computing device comprises a display screen configured to display an image to a user, and an intensity-sensitive touch-sensing input mechanism configured to detect one or more objects touching the display screen. The device also comprises a controller configured to determine an orientation of a finger touching the screen from a direction between a center of a first set of touch data and a center of a second set of touch data, and to adjust an image on the display screen in response to a determined orientation of the finger.

摘要翻译： 公开了触摸触敏装置的手指方位的确定。 在一个实施例中，计算设备包括被配置为向用户显示图像的显示屏幕以及被配置为检测触摸显示屏幕的一个或多个对象的强度敏感的触摸感测输入机构。 该装置还包括控制器，其被配置为从第一组触摸数据的中心与第二组触摸数据的中心之间的方向确定触摸屏幕的手指的方向，并且调整显示屏幕上的图像 响应于确定的手指的取向。

公开(公告)号：US07834956B2

公开(公告)日：2010-11-16

申请号：US12046424

申请日：2008-03-11

申请人： Nigel Keam ,  Craig Steven Ranta

发明人： Nigel Keam ,  Craig Steven Ranta

IPC分类号： G02F1/1335

CPC分类号： G02F1/133602 ,  G02F2001/133614

摘要： Various embodiments related to photoluminescent backlighting for a light valve are disclosed herein. One disclosed embodiment comprises a computing device with a light valve having a viewing side and a back side. A photoluminescent material is disposed behind the back side of the light valve, and an excitation light source is positioned to illuminate the photoluminescent material. Photoluminescence from the photoluminescent material backlights the light valve when the excitation light source illuminates the photoluminescent material.

摘要翻译： 本文公开了与光阀的光致发光背光相关的各种实施例。 一个公开的实施例包括具有观察侧和后侧的光阀的计算装置。 光致发光材料设置在光阀背面后面，激发光源被定位成照亮光致发光材料。 当激发光源照射光致发光材料时，来自光致发光材料的光致发光反射光阀。

公开(公告)号：US20060091288A1

公开(公告)日：2006-05-04

申请号：US10976483

申请日：2004-10-29

申请人： Nigel Keam ,  Andrew Wilson ,  Donald Gillett

发明人： Nigel Keam ,  Andrew Wilson ,  Donald Gillett

IPC分类号： H01L27/00

CPC分类号： H04N5/2357 ,  G06F3/0425 ,  G06F2203/04108 ,  G06K9/2036

摘要： Compensation of the effects of uncontrolled light in an imaging system using a controlled light source. Light from the controlled light source reflected by an object and uncontrolled light are detected in a plurality of frequency ranges. Intensity of the uncontrolled light is determined based on the varying sensitivity of an image sensor to light in the different frequency ranges and known emission characteristics of the controlled light source in the frequency ranges. Once the intensity of the uncontrolled light is determined, the total light detected at each point is adjusted to reduce the effects of the uncontrolled light in the resulting imaging data produced by the imaging system.

摘要翻译： 使用受控光源对成像系统中不受控光的影响进行补偿。 在多个频率范围内检测来自物体反射的受控光源的光和不受控制的光。 基于图像传感器对不同频率范围内的光的变化灵敏度和受控光源在频率范围内的已知发射特性来确定不受控光的强度。 一旦确定了不受控制的光的强度，则调整在每个点处检测到的总光，以减少由成像系统产生的所得到的成像数据中不受控制的光的影响。

公开(公告)号：US08018442B2

公开(公告)日：2011-09-13

申请号：US12235205

申请日：2008-09-22

申请人： Nigel Keam ,  Prafulla Masalkar

发明人： Nigel Keam ,  Prafulla Masalkar

IPC分类号： G06F3/042

CPC分类号： G06F3/0418 ,  G06F3/0425

摘要： Embodiments related to the calibration of an optical touch-sensitive display device are disclosed. For example, one disclosed embodiment comprises a method of calibrating an image sensor, wherein the method comprises placing a photoluminescent panel over the display surface, and illuminating a target location on the display surface with visible light. Infrared light that is emitted by the panel in response to the illumination of the display surface is received via the image sensor. The received light then is used to calibrate the device.

摘要翻译： 公开了与光学式敏感显示装置的校准有关的实施例。 例如，一个公开的实施例包括校准图像传感器的方法，其中该方法包括将光致发光面板放置在显示表面上，并用可见光照亮显示表面上的目标位置。 通过图像传感器接收由面板响应于显示表面的照明而发射的红外线。 接收的光然后用于校准设备。

公开(公告)号：US07874496B2

公开(公告)日：2011-01-25

申请号：US12099162

申请日：2008-04-08

申请人： Nigel Keam

发明人： Nigel Keam

IPC分类号： G06K19/06

CPC分类号： G06K19/06046 ,  G06K19/06

摘要： Embodiments related to the identification of objects via optically readable tags. One embodiment includes an optically readable tag having a data region comprising a two-dimensional array of optically contrasting data features, one or more orientation features located on the tag outside of the data region, and a tracking feature located outside of the data region and having a larger size than the orientation features and the data features.

摘要翻译： 通过光学可读标签识别对象的实施例。 一个实施例包括具有数据区域的光学可读标签，该数据区域包括光学对比数据特征的二维阵列，位于数据区域外部的标签上的一个或多个取向特征，以及位于数据区域外部的跟踪特征， 比定向特征和数据特征更大的尺寸。

公开(公告)号：US20110012866A1

公开(公告)日：2011-01-20

申请号：US12617963

申请日：2009-11-13

申请人： Nigel Keam

发明人： Nigel Keam

IPC分类号： G06F3/042

CPC分类号： G06F3/0425 ,  G06F3/0383

摘要： Embodiments are disclosed that relate to the correction of an image acquired in a rolling image capture system for ambient light. One embodiment provides a device comprising a screen, a rolling image capture system, a local light source, and a controller. The controller is configured to operate the local light source while acquiring first and second frames of image data to integrate each field of image sensor pixels for a duration of local+ambient light and for a duration of ambient light such that a sum tlocal+ambient+tambient for the first frame is different than a sum tlocal+ambient+tambient for the second frame for each field of pixels. The controller is further configured to determine an ambient light value, and to adjust one or more pixels based upon the ambient light value.

摘要翻译： 公开了涉及在用于环境光的滚动图像捕获系统中获取的图像的校正的实施例。 一个实施例提供一种包括屏幕，滚动图像捕获系统，本地光源和控制器的设备。 控制器被配置为在获取第一和第二帧图像数据的同时操作本地光源，以在局部+环境光的持续时间和环境光的持续时间内对图像传感器像素的每个场进行积分，使得总和+环境+ 对于第一帧的声音与针对每个像素场的第二帧的和tlocal + ambient + tambient不同。 控制器还被配置为确定环境光值，并且基于环境光值来调整一个或多个像素。