公开(公告)号：WO2010028191A3

公开(公告)日：2010-06-03

申请号：PCT/US2009055951

申请日：2009-09-03

Applicant: MICROSOFT CORP

Inventor： DEPUE MARSHALL T ,  LANE DAVID M ,  KLEIN STEVE E ,  HASTINGS BRIAN L ,  BOHN DAVID D

IPC: G06F3/033

CPC classification number: G06F3/038 ,  G06F3/0317 ,  G06F3/03543

Abstract: Architecture for managing clutch height in an optical navigational device such as a computer mouse. In one embodiment for a mouse, a feature can be molded into the bottom case that limits clutch height by occluding the reflected light to the image sensor when the device is lifted from the tracking surface. Tracking is disabled when clutch height threshold is exceeded, and re-enabled when device is brought under the distance clutch height threshold. The device includes firmware controlled algorithm adjustments to one or more correlation parameters. When employing a D-shaped aperture, a threshold can be placed on the z-axis height tracking distance using dimensional characteristics of the shaped aperture, such as a knife-edge (the straight portion of the "D" shaped aperture), to impose a shadow across the image sensor. The aperture can be custom designed to occlude a portion of the emitted light from an LED.

Abstract translation: 用于管理光学导航设备（如计算机鼠标）中离合器高度的体系结构。 在用于鼠标的一个实施例中，可以将特征模制到底部壳体中，该特征通过在将装置从跟踪表面提起时阻挡到图像传感器的反射光来限制离合器高度。 当超过离合器高度阈值时跟踪被禁用，并且当装置被置于距离离合器高度阈值以下时重新启用。 该设备包括对一个或多个相关参数进行固件控制的算法调整。 当采用D形孔径时，可以使用成形孔径的尺寸特征（例如刀刃（“D”形孔径的直线部分））将阈值放置在z轴高度跟踪距离上以施加 影像传感器上的阴影。 光圈可以定制设计，以遮挡LED发出的一部分光。