Encoder using polarized filters
    1.
    发明授权
    Encoder using polarized filters 有权
    编码器使用偏振滤波器

    公开(公告)号:US06437318B1

    公开(公告)日:2002-08-20

    申请号:US09243922

    申请日:1999-02-03

    IPC分类号: H01J4014

    摘要: An encoder having a movable element with a first polarized filter coupled to the movable element. A second polarized filter is either stationary, or moves differently from the first polarized filter. A photo-emitter and photodetector are arranged on opposite sides of the two polarized filters. Thus, when the polarized filters are aligned in phase, a maximum amount of light will penetrate to the photodetector. However, as they become out of phase due to movement of one of the filters, the amount of light will decrease, as a function of the amount of movement.

    摘要翻译: 一种具有可移动元件的编码器,其具有耦合到可移动元件的第一偏振滤光器。 第二偏振滤波器是静止的,或者与第一偏振滤波器不同的移动。 光发射器和光电检测器布置在两个偏振滤光片的相对两侧。 因此,当偏振滤光器相位对准时,最大量的光将穿透到光电检测器。 然而,由于其中一个滤光器的移动,它们变得异相,所以光量将随着移动量的减小而减小。

    Notification mechanisms on a control device
    2.
    发明授权
    Notification mechanisms on a control device 有权
    控制装置上的通知机制

    公开(公告)号:US06937225B1

    公开(公告)日:2005-08-30

    申请号:US09750889

    申请日:2000-12-27

    IPC分类号: G09G5/00

    摘要: The method and system serve to notify the user of an event through a control device. Active notification takes place even when the computer sound and screen are disabled, for example, when in a power saving mode or screen saving mode. Notification may include visual notification, audio notification, vibratory notification, or tactile notification. Tactile notification can also serve to provide a private notification system which will not alert or disturb other people in the vicinity of the user. Such tactile notification can be provided by means of a texture change in the surface of the control device. One way in which this could be done is by raising a plurality of pegs through the surface of a control device to change its texture.

    摘要翻译: 方法和系统通过控制装置通知用户事件。 即使计算机声音和屏幕被禁用,例如在省电模式或屏幕保存模式下,也会发生主动通知。 通知可能包括视觉通知,音频通知,振动通知或触觉通知。 触觉通知还可用于提供私人通知系统,该系统不会警告或打扰用户附近的其他人。 这种触觉通知可以通过控制装置的表面中的纹理变化来提供。 可以做到这一点的一种方式是通过将多个钉抬起通过控制装置的表面来改变其纹理。