Quanta Computer Incorporated

Maw-Lin Hsu

Hsin-Hung Lee

Chee-Chun Leung

Yun-Cheng Liu

Hsu-Hung Chen

Ching-Chun Chiang

The invention discloses a cursor control method applied to a presentation system. The presentation system comprises a computer, an imaging plane, an optical pointer, a camera, and a projector. The projector is a mobile or built-in projector of the computer for projecting output from the computer onto the imaging plane, wherein the output of the computer comprises an internal cursor generated by the computer. The optical pointer is used for projecting an external cursor onto the imaging plane. The camera is a mobile or built-in camera of the computer for capturing an image of the imaging plane. After capturing the image, a processor of the computer detects both a first position of the external cursor and a second position of the internal cursor corresponding to the image, calculates a shift vector between the first and second positions, and moves the internal cursor based on the shift vector.

Cursor control method applied to presentation system and computer readable storage medium

The invention provides a polarizer device. The polarizer device according to the invention is adapted to a polarized light having an electric field direction. In particular, the polarizer device according to the invention enables the polarizer to be automatically adjusted to a proper viewing angle.

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Tao Yuan Shien, Taiwan

Maw-Lin Hsu