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1. 发明申请

US20080144010A1 Methods and apparatus for navigating a surfuce 有权
标题翻译：浏览冲浪的方法和设备
公开(公告)号：US20080144010A1
公开(公告)日：2008-06-19
申请号：US11640760
申请日：2006-12-18
申请人： Lye Hock Bernard Chang , Srinivasan Lakshmanan
发明人： Lye Hock Bernard Chang , Srinivasan Lakshmanan
IPC分类号： G01N21/00 , G01N21/55
CPC分类号： G01P3/36 , G06F3/0317 , G06F3/03544
摘要： In one embodiment, a surface is navigated by 1) using a first light sensor, mounted to a navigation device, to detect light reflected from a surface, and 2) using outputs of the first light sensor, over time, to determine relative movement of the navigation device with respect to the surface. While using the first light sensor, it is determined whether the outputs of the first light sensor, over time, are indicating movement of the navigation device with respect to the surface. If not, 1) a second light sensor that is mounted to the navigation device, and of a different type than the first light sensor, is used to detect light reflected from the surface, and 2) outputs of the second light sensor, over time, are used to determine relative movement of the navigation device with respect to the surface.
摘要翻译：在一个实施例中，通过1）使用安装到导航装置的第一光传感器来检测表面，以检测从表面反射的光，以及2）随着时间推移使用第一光传感器的输出来确定相对运动导航装置相对于表面。在使用第一光传感器的同时，确定第一光传感器的输出是否随时间指示导航装置相对于表面的移动。如果不是，1）安装到导航装置并且与第一光传感器不同的类型的第二光传感器用于检测从表面反射的光，以及2）随着时间的推移第二光传感器的输出用于确定导航装置相对于表面的相对运动。

2. 发明授权

US07265336B2 Encoder utilizing a reflective cylindrical surface 有权
标题翻译：编码器采用反射圆柱面
公开(公告)号：US07265336B2
公开(公告)日：2007-09-04
申请号：US10725696
申请日：2003-12-01
申请人： Toshiya Hataguchi , Yee Loong Chin , Kok Hing Fo , Srinivasan Lakshmanan , Lai Hing Chua
发明人： Toshiya Hataguchi , Yee Loong Chin , Kok Hing Fo , Srinivasan Lakshmanan , Lai Hing Chua
IPC分类号： G01D5/34
CPC分类号： G01D5/3473 , G01D5/34707
摘要： An encoder for measuring the position of a rotating shaft is disclosed. The encoder includes a drum having an encoding track thereon and a detector module having a light source and a photodetector. The drum includes a cylindrical surface characterized by an axis, the drum having a surface with a normal perpendicular to the axis. The encoding track includes a plurality of alternating reflective and non-reflective stripes arranged on the cylindrical surface. The first light source illuminates the stripes at an opaque angle relative to the normal. The first photodetector is positioned to receive light from the light source that is reflected from the reflective stripes when the drum moves relative to the photodetector. In one embodiment, the drum rotates about the axis when the shaft rotates. The encoding track can be either on the inside or outside of the drum.
摘要翻译：公开了一种用于测量旋转轴的位置的编码器。编码器包括其上具有编码轨道的滚筒和具有光源和光电检测器的检测器模块。滚筒包括由轴线表征的圆柱形表面，滚筒具有垂直于轴线的法线。编码轨道包括布置在圆柱形表面上的多个交替反射和非反射条纹。第一光源相对于法线以不透明的角度照亮条纹。第一光电检测器定位成当滚筒相对于光电检测器移动时接收来自反射条纹的光源的光。在一个实施例中，当轴旋转时，滚筒绕轴线旋转。编码轨道可以在鼓的内部或外部。

3. 发明申请

US20130077818A1 DETECTION METHOD OF OPTICAL NAVIGATION DEVICE 审中-公开
标题翻译：光学导航装置的检测方法
公开(公告)号：US20130077818A1
公开(公告)日：2013-03-28
申请号：US13241207
申请日：2011-09-23
申请人： TONG-TEE TAN , SRINIVASAN LAKSHMANAN CHETTIAR
发明人： TONG-TEE TAN , SRINIVASAN LAKSHMANAN CHETTIAR
IPC分类号： G06K9/00
CPC分类号： G01C21/20
摘要： A detection method of an optical navigation device is disclosed. The device is used for determining whether an object is lifted from the optical navigation device or not. The method includes steps of reading the detection image detected by the optical navigation device, calculating the image signal value thereof during non-lift status, and integrating a historical threshold value with the image signal value according to adaptive factors for generating an adjustment threshold value serving as the navigation threshold of the detection image. The historical threshold value is the navigation threshold of a former detection image of the detection image. A step of comparing the adjustment threshold with the image signal value for determining whether the image signal value passes the navigation threshold or not may also be included. If the image signal value does not pass the navigation threshold, the object is determined as in the lift status.
摘要翻译：公开了一种光学导航装置的检测方法。该装置用于确定物体是否从光学导航装置提升。该方法包括以下步骤：读取由光学导航装置检测到的检测图像，在非提升状态期间计算其图像信号值，并根据用于生成调整阈值的适应性因子将历史阈值与图像信号值进行积分作为检测图像的导航阈值。历史阈值是检测图像的前检测图像的导航阈值。还可以包括将调整阈值与用于确定图像信号值是否通过导航阈值的图像信号值进行比较的步骤。如果图像信号值未通过导航阈值，则该对象被确定为在升降状态。

4. 发明申请

US20080180651A1 VELOCITY DETERMINATION UTILIZING TWO PHOTOSENSOR ARRAYS 有权
标题翻译：使用两个光电子阵列的速度确定
公开(公告)号：US20080180651A1
公开(公告)日：2008-07-31
申请号：US11668074
申请日：2007-01-29
申请人： Kuldeep Kumar Saxena , Srinivasan Lakshmanan , Wai Keat Tai
发明人： Kuldeep Kumar Saxena , Srinivasan Lakshmanan , Wai Keat Tai
IPC分类号： G01P3/36
CPC分类号： G01P3/36 , G01P3/68
摘要： A technique for relative velocity determination between a surface and a velocity determination system involves capturing a set of outputs from a first photosensor array and then comparing subsequently captured sets of outputs from a second photosensor array to the set of outputs from the first photosensor array until a satisfactory match is found between the outputs. Once a satisfactory match is found, the elapsed time between the capture of the two sets of outputs represents the time to travel the known separation distance between the two photosensor arrays. Given the known distance of travel and the elapsed time to travel the distance, the relative velocity is a simple calculation of the distance traveled divided by the time to travel the distance.
摘要翻译：用于在表面和速度确定系统之间进行相对速度确定的技术涉及从第一光电传感器阵列捕获一组输出，然后将随后捕获的第二光电传感器阵列的输出集合与来自第一光传感器阵列的输出集合进行比较，直到在输出之间找到令人满意的匹配。一旦找到令人满意的匹配，则捕获两组输出之间的经过时间表示在两个光电传感器阵列之间行进已知间隔距离的时间。给定已知的行驶距离和行驶距离的经过时间，相对速度是行驶距离除以行驶距离的时间的简单计算。

5. 发明授权

US07570348B2 Methods and apparatus for navigating a surface 有权
标题翻译：用于导航表面的方法和装置
公开(公告)号：US07570348B2
公开(公告)日：2009-08-04
申请号：US11640760
申请日：2006-12-18
申请人： Lye Hock Bernard Chan , Srinivasan Lakshmanan
发明人： Lye Hock Bernard Chan , Srinivasan Lakshmanan
IPC分类号： G01N21/00
CPC分类号： G01P3/36 , G06F3/0317 , G06F3/03544
摘要： In one embodiment, a surface is navigated by 1) using a first light sensor, mounted to a navigation device, to detect light reflected from a surface, and 2) using outputs of the first light sensor, over time, to determine relative movement of the navigation device with respect to the surface. While using the first light sensor, it is determined whether the outputs of the first light sensor, over time, are indicating movement of the navigation device with respect to the surface. If not, 1) a second light sensor that is mounted to the navigation device, and of a different type than the first light sensor, is used to detect light reflected from the surface, and 2) outputs of the second light sensor, over time, are used to determine relative movement of the navigation device with respect to the surface.
摘要翻译：在一个实施例中，通过1）使用安装到导航装置的第一光传感器来检测表面，以检测从表面反射的光，以及2）随着时间推移使用第一光传感器的输出来确定相对运动导航装置相对于表面。在使用第一光传感器的同时，确定第一光传感器的输出是否随时间指示导航装置相对于表面的移动。如果不是，1）安装到导航装置并且与第一光传感器不同的类型的第二光传感器用于检测从表面反射的光，以及2）随着时间的推移第二光传感器的输出用于确定导航装置相对于表面的相对运动。

6. 发明申请

US20050116153A1 Encoder utilizing a reflective cylindrical surface 有权
标题翻译：编码器采用反射圆柱面
公开(公告)号：US20050116153A1
公开(公告)日：2005-06-02
申请号：US10725696
申请日：2003-12-01
申请人： Toshiya Hataguchi , Yee Chin , Kok Fo , Srinivasan Lakshmanan , Lai Chua
发明人： Toshiya Hataguchi , Yee Chin , Kok Fo , Srinivasan Lakshmanan , Lai Chua
IPC分类号： G01D5/36 , G01D5/347 , G01D5/34
CPC分类号： G01D5/3473 , G01D5/34707
摘要： An encoder for measuring the position of a rotating shaft is disclosed. The encoder includes a drum having an encoding track thereon and a detector module having a light source and a photodetector. The drum includes a cylindrical surface characterized by an axis, the drum having a surface with a normal perpendicular to the axis. The encoding track includes a plurality of alternating reflective and non-reflective stripes arranged on the cylindrical surface. The first light source illuminates the stripes at an opaque angle relative to the normal. The first photodetector is positioned to receive light from the light source that is reflected from the reflective stripes when the drum moves relative to the photodetector. In one embodiment, the drum rotates about the axis when the shaft rotates. The encoding track can be either on the inside or outside of the drum.
摘要翻译：公开了一种用于测量旋转轴的位置的编码器。编码器包括其上具有编码轨道的滚筒和具有光源和光电检测器的检测器模块。滚筒包括由轴线表征的圆柱形表面，滚筒具有垂直于轴线的法线。编码轨道包括布置在圆柱形表面上的多个交替反射和非反射条纹。第一光源相对于法线以不透明的角度照亮条纹。第一光电检测器定位成当滚筒相对于光电检测器移动时接收来自反射条纹的光源的光。在一个实施例中，当轴旋转时，滚筒绕轴线旋转。编码轨道可以在鼓的内部或外部。

7. 发明申请

US20130076693A1 TAPPING DETECTION METHOD OF OPTICAL NAVIGATION MODULE 审中-公开
标题翻译：光学导航模块的拾取检测方法
公开(公告)号：US20130076693A1
公开(公告)日：2013-03-28
申请号：US13241204
申请日：2011-09-23
申请人： TONG-TEE TAN , SRINIVASAN LAKSHMANAN CHETTIAR
发明人： TONG-TEE TAN , SRINIVASAN LAKSHMANAN CHETTIAR
IPC分类号： G06F3/042
CPC分类号： G06F3/0354 , G06F3/042
摘要： A tapping detection method of an optical navigation module is disclosed. The module includes an optical sensor and a processor. The method includes steps of calculating a displacement quantity of an object contacting with the optical navigation module according to a sense image sensed by the optical sensor, and comparing the displacement quantity with a displacement threshold value. When the displacement quantity is smaller than the displacement threshold value, the method further includes steps of calculating a brightness difference value of the sense image, and comparing the brightness difference value with a brightness threshold value. When the brightness difference value is smaller than the brightness threshold value, the optical navigation module may be determined to be tapped by the object.
摘要翻译：公开了一种光学导航模块的敲击检测方法。该模块包括光学传感器和处理器。该方法包括根据由光学传感器感测到的感测图像计算与光学导航模块接触的物体的位移量，并将位移量与位移阈值进行比较的步骤。当位移量小于位移阈值时，该方法还包括以下步骤：计算感测图像的亮度差值，并将亮度差值与亮度阈值进行比较。当亮度差值小于亮度阈值时，可以确定光学导航模块被物体挖掘。

8. 发明授权

US07423737B2 Velocity determination utilizing two photosensor arrays 有权
标题翻译：使用两个光电传感器阵列的速度确定
公开(公告)号：US07423737B2
公开(公告)日：2008-09-09
申请号：US11668074
申请日：2007-01-29
申请人： Kuldeep Kumar Saxena , Srinivasan Lakshmanan , Wai Keat Tai
发明人： Kuldeep Kumar Saxena , Srinivasan Lakshmanan , Wai Keat Tai
IPC分类号： G01P3/36
CPC分类号： G01P3/36 , G01P3/68
摘要： A technique for relative velocity determination between a surface and a velocity determination system involves capturing a set of outputs from a first photosensor array and then comparing subsequently captured sets of outputs from a second photosensor array to the set of outputs from the first photosensor array until a satisfactory match is found between the outputs. Once a satisfactory match is found, the elapsed time between the capture of the two sets of outputs represents the time to travel the known separation distance between the two photosensor arrays. Given the known distance of travel and the elapsed time to travel the distance, the relative velocity is a simple calculation of the distance traveled divided by the time to travel the distance.
摘要翻译：用于在表面和速度确定系统之间进行相对速度确定的技术涉及从第一光电传感器阵列捕获一组输出，然后将随后捕获的第二光电传感器阵列的输出集合与来自第一光传感器阵列的输出集合进行比较，直到在输出之间找到令人满意的匹配。一旦找到令人满意的匹配，则捕获两组输出之间的经过时间表示在两个光电传感器阵列之间行进已知间隔距离的时间。给定已知的行驶距离和行驶距离的经过时间，相对速度是行驶距离除以行驶距离的时间的简单计算。

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