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    • 7. 发明授权
    • Optical sensor for pointing device with conical disks and single photodetector
    • 用于带圆锥盘和单光电检测器的定位装置的光学传感器
    • US06300620B1
    • 2001-10-09
    • US09310694
    • 1999-05-05
    • Jean-Daniel NicoudRené SommerMarc Bidiville
    • Jean-Daniel NicoudRené SommerMarc Bidiville
    • G09G500
    • G06F3/03543G06F3/0312
    • A method and apparatus for eliminating in at least one light emitter and light detector in a mouse design. This is done by using two conical shaped encoder wheels positioned so that they are almost touching each other. A single light emitter then is used to shine light at the junction, so that it passes through both cones. On the opposite side is a single chip, with two photodetectors integrated on each side. The chip is positioned so that light passing through the first conical encoder impinges on the first photodetector, while light passing through the second conical encoder impinges on the second photodetector. Thus, the two photodetectors can be integrated on a single chip, saving a separate photodetector chip. In addition, only a single LED is required.
    • 一种在鼠标设计中消除至少一个光发射器和光检测器的方法和装置。 这是通过使用两个圆锥形编码器轮来实现的,使得它们几乎彼此接触。 然后使用单个光发射器在接合处照射光,使其通过两个锥体。 在相反的一侧是单个芯片,两侧集成了两个光电探测器。 芯片被定位成使得穿过第一锥形编码器的光照射在第一光电检测器上,而通过第二锥形编码器的光照射在第二光电检测器上。 因此,两个光电检测器可以集成在单个芯片上,从而节省了单独的光电探测器芯片。 此外,只需要一个LED。