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US09223166B2 Positional input systems and methods 有权
位置输入系统和方法

Positional input systems and methods
摘要:
Positional input systems and methods are provided. A positional input method can include passing (210) a polarized light generated by a source through a predetermined pattern of visibly transparent polarizing elements disposed on the surface of a display device. The method further includes detecting (220) a change in the polarization state of the polarized light corresponding to a location on the display device.
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