Kinpo Electronics, Inc.

Cal-Comp Electronics & Communications Company Limited

Ming-Wei Chuang

Chuan-Wang Chang

Yu-Ta Lin

A positioning system comprises a sweeper and a positioning device arranged on a ceiling. The sweeper has a lighting component for emitting light. The positioning device at least has a height measuring unit and a plurality of light-sensitive units. The positioning device measures a vertical distance between the positioning device and a floor through the height measuring unit. The positioning device receives the light emitted from the emitting light of the sweeper through the light-sensitive units, and calculates an oblique distance between the positioning device and the sweeper based on different strengths of the light respectively received from each of the plurality of light-sensitive units. Therefore, the positioning device can calculates a parallel distance between the positioning device and the sweeper based on the vertical distance and the oblique distance, and further determines a related position of the sweeper opposite to the positioning device.

Positioning system of sweeper and positioning method of the positioning system

An electrostatic discharge (ESD) protection structure with a ground ring and a plurality of pads are provided, wherein the ground ring has a ring inner area used for disposing an integrated circuit (IC) and the pads are disposed around the outer periphery of the ground ring. The ground ring has a plurality of sawtooth structures, wherein each of the sawtooth structures has a sharp end which is adjacent to the corresponding pad.

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Taipei, Taiwan

Ming-Wei Chuang