Homogeneous and plain surface detection in optical navigation systems
    1.
    发明申请
    Homogeneous and plain surface detection in optical navigation systems 有权
    光导航系统中均匀和平坦的表面检测

    公开(公告)号:US20050099410A1

    公开(公告)日:2005-05-12

    申请号:US10703310

    申请日:2003-11-07

    申请人: Tong Liew Shan Tan

    发明人: Tong Liew Shan Tan

    CPC分类号: G06F3/0317

    摘要: One embodiment in accordance with the invention relates to detecting a homogeneous surface. A first surface image is received. A plurality of values are generated by performing a plurality of auto correlations with the first surface image and a copy of the first surface image. The plurality of values includes a first peak value. A determination is made as to whether a normalized second peak value of the plurality of values satisfies a defined condition associated with a value. If so, a homogeneous surface image filter is utilized with a second surface image.

    摘要翻译: 根据本发明的一个实施例涉及检测均匀的表面。 接收第一表面图像。 通过与第一表面图像和第一表面图像的副本执行多个自动相关来生成多个值。 多个值包括第一峰值。 确定多个值的归一化第二峰值是否满足与值相关联的限定条件。 如果是这样,则使用均匀的表面图像滤波器与第二表面图像。

    Optical navigation method and apparatus
    2.
    发明申请
    Optical navigation method and apparatus 审中-公开
    光学导航方法及装置

    公开(公告)号:US20060266934A1

    公开(公告)日:2006-11-30

    申请号:US11140281

    申请日:2005-05-27

    IPC分类号: G06M7/00

    CPC分类号: G06F3/0317 G06F3/038

    摘要: The invention provides a method and apparatus for performing optical navigation. The optical navigation apparatus comprises a first light source, a second light source, an optical sensor that converts light into electrical signals, and processing logic. The processing logic is configured to process the electrical signals output by the optical detector to obtain information relating to motion or an absence of motion of the optical navigation apparatus. Based on the motion information obtained, the processing logic turns on the first light source and turns off the second light source, or vice versa. This ensures that, regardless of the tracking surface, the optical navigation apparatus will be using a light source that enables the optical navigation apparatus to operate effectively.

    摘要翻译: 本发明提供一种执行光学导航的方法和装置。 光学导航装置包括第一光源,第二光源,将光转换成电信号的光学传感器,以及处理逻辑。 处理逻辑被配置为处理由光学检测器输出的电信号以获得与光学导航装置的运动或不存在运动有关的信息。 基于获得的运动信息,处理逻辑打开第一光源并关闭第二光源,反之亦然。 这确保了不管跟踪表面如何,光学导航装置将使用能使光学导航装置有效操作的光源。

    Pointing device with adaptive illumination level
    3.
    发明申请
    Pointing device with adaptive illumination level 有权
    具有自适应照明级别的指向装置

    公开(公告)号:US20050110776A1

    公开(公告)日:2005-05-26

    申请号:US10720465

    申请日:2003-11-21

    摘要: A pointing device and method for operating the same is disclosed. The pointing device includes an illumination system, a camera system, and a controller. The illumination system illuminates a surface over which the pointing device moves. The illumination system generates a light level determined by an illumination control signal. The camera records a plurality of images of the illuminated surface. The controller records first and second images taken by the camera at different times and determines a displacement indicative of the direction and distance the positioning device moved between the two different times. The controller also generates the illumination control signal. The illumination control signal depends on at least one of the images recorded by the camera system. In one embodiment, the surface is characterized by a reflectivity and the light level generated by the illumination system is inversely related to that reflectivity.

    摘要翻译: 公开了一种用于操作其的指示装置和方法。 指示装置包括照明系统,相机系统和控制器。 照明系统照亮指示装置移动的表面。 照明系统产生由照明控制信号确定的光级。 照相机记录被照亮表面的多个图像。 控制器在不同时间记录摄像机摄取的第一和第二图像,并确定指示定位装置在两个不同时间之间移动的方向和距离的位移。 控制器还产生照明控制信号。 照明控制信号取决于照相机系统记录的图像中的至少一个。 在一个实施例中,表面的特征在于反射率,并且由照明系统产生的光水平与该反射率成反比。

    Optical navigation system having a ring pixel array
    4.
    发明申请
    Optical navigation system having a ring pixel array 有权
    具有环形像素阵列的光学导航系统

    公开(公告)号:US20060124839A1

    公开(公告)日:2006-06-15

    申请号:US11013982

    申请日:2004-12-15

    IPC分类号: G06M7/00

    CPC分类号: G06F3/0317 G06F3/0354

    摘要: An optical navigation system having an optical navigation integrated circuit (“navigation IC”) is described. The optical navigation system may include an emitter module and a pixel array surrounding the emitter module. The optical navigation system may further include a ring optical system located on the surface of the navigation IC over the pixel array.

    摘要翻译: 描述了具有光导航集成电路(“导航IC”)的光学导航系统。 光学导航系统可以包括发射器模块和围绕发射器模块的像素阵列。 光学导航系统还可以包括位于导航IC的表面上的环形光学系统,该环形光学系统位于像素阵列上。

    Current fault detection for light emitters
    5.
    发明申请
    Current fault detection for light emitters 失效
    光发射器的电流故障检测

    公开(公告)号:US20070008665A1

    公开(公告)日:2007-01-11

    申请号:US11178686

    申请日:2005-07-11

    IPC分类号: H02H9/08

    摘要: A device includes a light emitter, a current sensing resistance, a current generator, and detection circuitry. The current generator is connected to the light emitter and to the current sensing resistance. During a normal operating mode of the device, the current generator regulates current flow through the light emitter. In a test mode, the current generator regulates current flow through the current sensing resistance. The detection circuitry, during the test mode, detects when current flow through the current sensing resistance is outside an expected range.

    摘要翻译: 一种器件包括光发射器,电流检测电阻,电流发生器和检测电路。 电流发生器连接到光发射器和电流感测电阻。 在器件的正常工作模式下,电流发生器调节通过光发射器的电流。 在测试模式下,电流发生器调节通过电流感测电阻的电流。 在测试模式期间,检测电路检测当前流过电流感测电阻的电流是否超出预期范围。

    CURRENT FAULT DETECTION FOR LIGHT EMITTERS
    6.
    发明申请
    CURRENT FAULT DETECTION FOR LIGHT EMITTERS 失效
    电流发生器的电流故障检测

    公开(公告)号:US20070268028A1

    公开(公告)日:2007-11-22

    申请号:US11833057

    申请日:2007-08-02

    IPC分类号: G01R27/02

    摘要: A device includes a light emitter, a current sensing resistance, a current generator, and detection circuitry. The current generator is connected to the light emitter and to the current sensing resistance. During a normal operating mode of the device, the current generator regulates current flow through the light emitter. In a test mode, the current generator regulates current flow through the current sensing resistance. The detection circuitry, during the test mode, detects when current flow through the current sensing resistance is outside an expected range.

    摘要翻译: 一种器件包括光发射器,电流检测电阻,电流发生器和检测电路。 电流发生器连接到光发射器和电流感测电阻。 在器件的正常工作模式下,电流发生器调节通过光发射器的电流。 在测试模式下,电流发生器调节通过电流感测电阻的电流。 在测试模式期间,检测电路检测当前流过电流感测电阻的电流是否超出预期范围。

    Laser pulse fault detection method and system
    7.
    发明申请
    Laser pulse fault detection method and system 审中-公开
    激光脉冲故障检测方法及系统

    公开(公告)号:US20070242709A1

    公开(公告)日:2007-10-18

    申请号:US11406032

    申请日:2006-04-18

    IPC分类号: H01S3/13

    CPC分类号: G06F3/038 G06F3/0317

    摘要: An optical navigation system for driving a laser device with a laser pulse fault detection employs a controller, a laser driver and a laser pulse fault detector. In operation, the controller provides the laser pulse train signal to the laser driver and the laser pulse fault detector. In response thereto, and the laser pulse fault detector enable a driving of the laser device by the laser driver based on detection of a normal timing condition of the laser pulse train and overrides a driving of the laser device by the laser driver based on a detection of an abnormal timing condition of the laser pulse train signal.

    摘要翻译: 用激光脉冲故障检测驱动激光装置的光学导航系统采用控制器,激光驱动器和激光脉冲故障检测器。 在操作中,控制器向激光驱动器和激光脉冲故障检测器提供激光脉冲串信号。 响应于此,激光脉冲故障检测器能够通过激光驱动器基于检测到激光脉冲串的正常定时条件来驱动激光装置,并且通过激光驱动器基于检测来覆盖激光装置的驱动 激光脉冲串信号的异常定时条件。

    Optical mouse that automatically adapts to glass surfaces and method of using the same
    8.
    发明申请
    Optical mouse that automatically adapts to glass surfaces and method of using the same 有权
    自动适应玻璃表面的光电鼠标及其使用方法

    公开(公告)号:US20070229461A1

    公开(公告)日:2007-10-04

    申请号:US11397194

    申请日:2006-04-04

    申请人: Shan Tan Sai Lee

    发明人: Shan Tan Sai Lee

    IPC分类号: G09G5/08

    CPC分类号: G06F3/0317

    摘要: A pointing device and method for using the same are disclosed. The pointing device includes an illumination system, an imaging system, and a controller. The illumination system illuminates a portion of a surface over which the pointing device travels with coherent light. The imaging system includes a first window for receiving light from the illuminated portion of the surface and transmitting that light to a first imaging array such that a speckle pattern is generated on the first imaging array and a second window includes an imaging optical system for forming an image of part of the illuminated portion of the surface on a second imaging array. The controller selects either the first imaging array or the second imaging array and compares the output of the selected imaging array at first and second times to determine a displacement indicative of the direction and distance the pointing device moved.

    摘要翻译: 公开了一种指示装置及其使用方法。 指示装置包括照明系统,成像系统和控制器。 照明系统照亮指示设备以相干光行进的表面的一部分。 该成像系统包括:第一窗口,用于接收来自表面的被照射部分的光,并将该光传输到第一成像阵列,使得在第一成像阵列上产生散斑图案;第二窗口包括成像光学系统, 在第二成像阵列上的表面的被照射部分的一部分的图像。 控制器选择第一成像阵列或第二成像阵列,并且在第一次和第二次比较所选择的成像阵列的输出以确定指示装置移动的方向和距离的位移。

    Temperature compensated laser system
    9.
    发明申请
    Temperature compensated laser system 审中-公开
    温度补偿激光系统

    公开(公告)号:US20060165140A1

    公开(公告)日:2006-07-27

    申请号:US11046363

    申请日:2005-01-27

    IPC分类号: H01S3/00 H01S3/04

    CPC分类号: G06F3/0317

    摘要: A Temperature Compensated Laser System (“TCLS”) for producing a temperature compensated laser drive current for a laser in an optical navigation device is described. The TCLS may include a controller in signal communication with an adjustable current source, wherein the adjustable current source produces the temperature compensated laser drive current. The TCLS may also include a measurement module in signal communication with the controller and the adjustable current source, wherein the controller adjusts the temperature compensated laser drive current produced by the adjustable current source responsive to a change in temperature sensed by the TCLS.

    摘要翻译: 描述了用于在光学导航装置中产生激光器的温度补偿激光器驱动电流的温度补偿激光系统(“TCLS”)。 TCLS可以包括与可调电流源进行信号通信的控制器,其中可调电流源产生温度补偿的激光驱动电流。 TCLS还可以包括与控制器和可调电流源进行信号通信的测量模块,其中控制器响应于TCLS感测到的温度变化来调节由可调电流源产生的温度补偿的激光驱动电流。