Method and system for optical tracking of a pointing object
    1.
    发明授权
    Method and system for optical tracking of a pointing object 有权
    指向物体光学跟踪的方法和系统

    公开(公告)号:US07534988B2

    公开(公告)日:2009-05-19

    申请号:US11268937

    申请日:2005-11-08

    IPC分类号: G06F3/033

    CPC分类号: G06F3/0421

    摘要: Optical tracking systems, method, and devices are described in which optical components detect light within a substantially planar region adjacent to a user device. Tracking logic may receive signals output by the optical components and determine coordinates associated with a movement of a pointing object through the substantially planar region. The tracking logic may then provide for translation of the coordinates into an action on a display, such as, for example, a movement of a cursor or other icon on the display.

    摘要翻译: 光学跟踪系统,方法和装置被描述,其中光学部件检测与用户装置相邻的基本平坦的区域内的光。 跟踪逻辑可以接收由光学部件输出的信号,并且确定与通过基本平坦的区域的指向物体的运动相关联的坐标。 然后,跟踪逻辑可以提供将坐标转换为显示器上的动作,例如光标或其他图标在显示器上的移动。

    Optical tracker
    4.
    发明申请
    Optical tracker 有权
    光学跟踪器

    公开(公告)号:US20070103440A1

    公开(公告)日:2007-05-10

    申请号:US11268937

    申请日:2005-11-08

    IPC分类号: G09G5/08

    CPC分类号: G06F3/0421

    摘要: Optical tracking systems, method, and devices are described in which optical components detect light within a substantially planar region adjacent to a user device. Tracking logic may receive signals output by the optical components and determine coordinates associated with a movement of a pointing object through the substantially planar region. The tracking logic may then provide for translation of the coordinates into an action on a display, such as, for example, a movement of a cursor or other icon on the display.

    摘要翻译: 光学跟踪系统,方法和装置被描述,其中光学部件检测与用户装置相邻的基本平坦的区域内的光。 跟踪逻辑可以接收由光学部件输出的信号,并且确定与通过基本平坦的区域的指向物体的运动相关联的坐标。 然后,跟踪逻辑可以提供将坐标转换为显示器上的动作,例如光标或其他图标在显示器上的移动。

    Input device using laser self-mixing velocimeter
    5.
    发明授权
    Input device using laser self-mixing velocimeter 有权
    输入装置采用激光自混式速度计

    公开(公告)号:US07557795B2

    公开(公告)日:2009-07-07

    申请号:US11170182

    申请日:2005-06-30

    IPC分类号: G09G5/00

    摘要: An input device encodes motion using a laser self-mixing velocimeter. The laser beam is directed at a disk or other moving member. As light from that beam is reflected back into the emitting cavity of the laser, the beam power output fluctuates because of the self-mixing effect and generates a beat signal. The beat signal frequency is used to determine the speed of the member's motion. The direction of motion is also determined based on the beat signal. A difference frequency analog phase locked loop filters the beat signal. A zero-point control disables motion detection when the average beat signal amplitude falls below a threshold. A triangle modulator generates a triangle wave for the laser bias current, with the triangle wave frequency being a submultiple of the beat signal frequency.

    摘要翻译: 输入设备使用激光自混式速度计对运动进行编码。 激光束被引导到盘或其他移动构件。 当来自该光束的光被反射回到激光器的发射腔中时,光束功率输出由于自混合效应而波动并产生拍频信号。 拍频信号用于确定会员运动的速度。 也可以基于拍子信号来确定运动方向。 差频模拟锁相环对拍频信号进行滤波。 零点控制在平均差拍信号幅度低于阈值时禁止运动检测。 三角形调制器产生激光偏置电流的三角波,三角波频率是拍频信号频率的一个倍数。

    OPTICAL INPUT DEVICE
    6.
    发明申请
    OPTICAL INPUT DEVICE 审中-公开
    光学输入设备

    公开(公告)号:US20090128495A1

    公开(公告)日:2009-05-21

    申请号:US11942739

    申请日:2007-11-20

    IPC分类号: G06F3/02 G01J1/04

    摘要: An input device includes an optical waveguide, one or more light sources, one or more imaging sensors, and a translator. The optical waveguide has an input surface, a back surface substantially opposite the input surface, and a side surface therebetween. The input surface has a plurality of different input locations. The one or more light sources are positioned to introduce light into the optical waveguide. A distortion of each different input location of the input surface causes a portion of light within the optical waveguide to exit from the optical waveguide at a different escape location of the side surface. The one or more imaging sensors are positioned and aimed to detect an escape location of a portion of light exiting from the side surface. The translator determines an input location corresponding to the escape location for each detected escape location.

    摘要翻译: 输入装置包括光波导,一个或多个光源,一个或多个成像传感器和转换器。 光波导具有输入表面,与输入表面基本相反的后表面以及它们之间的侧表面。 输入表面具有多个不同的输入位置。 一个或多个光源被定位成将光引入光波导中。 输入表面的每个不同输入位置的失真导致光波导中的一部分光在侧表面的不同逸出位置处从光波导离开。 一个或多个成像传感器被定位和瞄准以检测从侧面出射的一部分光的逸出位置。 翻译器确定对应于每个检测到的逃逸位置的逃生位置的输入位置。

    Pointing Device with Optical Positioning on Low-Diffusive Surfaces
    7.
    发明申请
    Pointing Device with Optical Positioning on Low-Diffusive Surfaces 有权
    指向装置在低扩散面上具有光学定位

    公开(公告)号:US20090002347A1

    公开(公告)日:2009-01-01

    申请号:US11770069

    申请日:2007-06-28

    IPC分类号: G09G3/28

    CPC分类号: G06F3/03543 G06F3/0317

    摘要: A computer input device includes a light source assembly forming an incident light beam that strikes an area on a surface beneath the input device with large incident angle. A light sensing assembly in the input device is positioned to receive scattered light and includes a band-pass filter. A barrier is located directly above the area where the light beam is incident on the top surface to prevent light from traveling directly from the light source assembly to the light sensing assembly.

    摘要翻译: 计算机输入装置包括形成入射光束的光源组件,其以大的入射角撞击输入装置下方的表面上的区域。 输入装置中的感光组件被定位成接收散射光并且包括带通滤光器。 屏障位于光束入射到顶面的区域的正上方,以防止光直接从光源组件传播到光感测组件。

    Pointing device with optical positioning on low-diffusive surfaces
    8.
    发明授权
    Pointing device with optical positioning on low-diffusive surfaces 有权
    在低扩散表面上具有光学定位的指示装置

    公开(公告)号:US08730167B2

    公开(公告)日:2014-05-20

    申请号:US11770069

    申请日:2007-06-28

    IPC分类号: G06F3/033 G09G5/08

    CPC分类号: G06F3/03543 G06F3/0317

    摘要: A computer input device includes a light source assembly forming an incident light beam that strikes an area on a surface beneath the input device with large incident angle. A light sensing assembly in the input device is positioned to receive scattered light and includes a band-pass filter. A barrier is located directly above the area where the light beam is incident on the top surface to prevent light from traveling directly from the light source assembly to the light sensing assembly.

    摘要翻译: 计算机输入装置包括形成入射光束的光源组件,其以大的入射角撞击输入装置下方的表面上的区域。 输入装置中的感光组件被定位成接收散射光并且包括带通滤光器。 屏障位于光束入射到顶面的区域的正上方,以防止光直接从光源组件传播到光感测组件。

    Data input devices and methods for detecting movement of a tracking surface by detecting laser doppler self-mixing effects of a frequency modulated laser light beam
    9.
    发明授权
    Data input devices and methods for detecting movement of a tracking surface by detecting laser doppler self-mixing effects of a frequency modulated laser light beam 有权
    用于通过检测调频激光束的激光多普勒自混合效应来检测跟踪表面的移动的数据输入装置和方法

    公开(公告)号:US07126586B2

    公开(公告)日:2006-10-24

    申请号:US10944099

    申请日:2004-09-17

    IPC分类号: G09G5/00

    摘要: A data input device for use with a tracking surface having light-scattering properties with respect to the device. The device comprising a single laser having a modulated light beam. A beam splitter splits the modulated light beam into two light beams projected along separate paths toward the tracking surface. A portion of the light striking the tracking surface reflects back into a cavity of the single laser for self-mixing with the projected light, thereby altering first and second characteristics of the projected modulated light beam according to first and second directions associated with the tracking surface. A detector associated with the laser detects the altered first and second characteristics of the modulated light beam projected by the laser, and a controller responsive to the detector determines the relative movement of the tracking surface and data input device relative to one another as a function of the altered first and second characteristics detected by the detector.

    摘要翻译: 一种与跟踪表面一起使用的数据输入装置,具有相对于该装置的光散射特性。 该装置包括具有调制光束的单个激光器。 分束器将调制的光束分成沿着分离的路径朝向跟踪表面投影的两个光束。 撞击跟踪表面的光的一部分反射回到单个激光器的空腔中,以与投影光自我混合,从而根据与跟踪表面相关联的第一和第二方向改变投射的调制光束的第一和第二特性 。 与激光器相关联的检测器检测由激光器投射的调制光束的改变的第一和第二特性,并且响应于检测器的控制器确定跟踪表面和数据输入装置相对于彼此的相对运动,作为 由检测器检测到的改变的第一和第二特性。

    Optical tracker for tracking surface-independent movements
    10.
    发明授权
    Optical tracker for tracking surface-independent movements 有权
    用于跟踪表面无关运动的光学跟踪器

    公开(公告)号:US07782296B2

    公开(公告)日:2010-08-24

    申请号:US11269483

    申请日:2005-11-08

    IPC分类号: G09G5/08

    CPC分类号: G06F3/0421

    摘要: Optical tracking systems, method, and devices are described in which optical components detect light within a substantially planar region adjacent to a user device. Tracking logic may receive signals output by the optical components and determine coordinates associated with a movement of a pointing object through the substantially planar region. The tracking logic may then provide for translation of the coordinates into an action on a display, such as, for example, a movement of a cursor or other icon on the display.

    摘要翻译: 光学跟踪系统,方法和装置被描述,其中光学部件检测与用户装置相邻的基本平坦的区域内的光。 跟踪逻辑可以接收由光学部件输出的信号,并且确定与通过基本平坦的区域的指向物体的运动相关联的坐标。 然后,跟踪逻辑可以提供将坐标转换成显示器上的动作,例如光标或其他图标在显示器上的移动。