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    • 4. 发明申请
    • ERASER FOR USE WITH OPTICAL INTERACTIVE SURFACE
    • 使用光学互动表面的ERASER
    • WO2009152342A3
    • 2010-10-28
    • PCT/US2009047053
    • 2009-06-11
    • POLYVISION CORPWILSON SCOTT EWATSON JAMES DHILDEBRANDT PETER W
    • WILSON SCOTT EWATSON JAMES DHILDEBRANDT PETER W
    • G06F3/042
    • G06F3/0428G06F3/0304
    • An electronic whiteboard system with an eraser device is disclosed. The electronic whiteboard system can comprise a writing surface and a retro-reflective perimeter. One of more optical detection elements can be disposed at the corners of the perimeter. The detection elements can emit a light beam and detect its reflection. The system can detect the presence of an object in proximity to the writing surface by the absence of reflected light. The erasing device can comprise retro-reflective elements. The retro-reflective elements can produce a distinct reflective pattern observed by the detection elements when they reflect the emitted light beams. The reflective pattern can be analyzed to determine the orientation of the erasing device relative to the writing surface. By determining the actual orientation of the erasing device ghosting, or ambiguity in the orientation of device, can be eliminated or substantially reduced.
    • 公开了一种具有橡皮擦装置的电子白板系统。 电子白板系统可以包括书写表面和反光外围。 更多的光学检测元件之一可以设置在周边的角部。 检测元件可以发射光束并检测其反射。 该系统可以通过不存在反射光来检测靠近书写表面的物体的存在。 擦除装置可以包括回射元件。 当反射元件反射发射的光束时,回射元件可以产生由检测元件观察到的不同的反射图案。 可以分析反射图案以确定擦除装置相对于书写表面的取向。 通过确定擦除装置重影的实际取向,或者可以消除或显着减少装置取向的模糊性。
    • 7. 发明申请
    • INPUT DEVICES WITH MULTIPLE OPERATING MODES
    • 具有多种操作模式的输入设备
    • WO2009152334A3
    • 2010-10-07
    • PCT/US2009047044
    • 2009-06-11
    • POLYVISION CORPHILDEBRANDT PETER WWATSON JAMES D
    • HILDEBRANDT PETER WWATSON JAMES D
    • G06F3/033
    • G06F3/03545G06F3/0321
    • An input device for interacting with a display surface of an electronic display system. The input device can comprise a body, a nib, a sensing system, a cap, and a mode-indicating system. The body can provide structural support for the input device. The nib, which is in communication with the body, can be used to directly interact with the display surface. The sensing system can sense indicia of a posture of the input device with respect to the display surface to facilitate operation of the input device. The cap is securable over the nib, and can be incorporated into the mode-indicating system. When the cap is secured over the nib, the input device can operate in a first operating mode, and when the cap is removed, the input device can operate in a second operating mode.
    • 一种用于与电子显示系统的显示表面相互作用的输入装置。 输入装置可以包括主体,笔尖,感测系统,盖子和模式指示系统。 身体可以为输入设备提供结构支持。 与身体通信的笔尖可用于与显示表面直接相互作用。 感测系统可以感测输入装置相对于显示表面的姿势的标记,以便于输入装置的操作。 盖子可以在笔尖上固定,并且可以并入模式指示系统。 当盖被固定在笔尖上时,输入装置可以在第一操作模式下操作,并且当盖被去除时,输入装置可以在第二操作模式下操作。