The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2012
Filed:
May. 04, 2007
Tzu Yi Chao, Hsin-Chu, TW;
Meng Tsung Wu, Hsin-Chu, TW;
Chih Hsin Lin, Hsin-Chu, TW;
Hsin Chia Chen, Hsin-Chu, TW;
Chao Chien Huang, Hsin-Chu, TW;
Hsuan Hsien Lee, Hsin-Chu, TW;
Yi Fang Lee, Hsin-Chu, TW;
Tzu Yi Chao, Hsin-Chu, TW;
Meng Tsung Wu, Hsin-Chu, TW;
Chih Hsin Lin, Hsin-Chu, TW;
Hsin Chia Chen, Hsin-Chu, TW;
Chao Chien Huang, Hsin-Chu, TW;
Hsuan Hsien Lee, Hsin-Chu, TW;
Yi Fang Lee, Hsin-Chu, TW;
PixArt Imaging Inc., Hsin-Chu, TW;
Abstract
A pointer positioning device for positioning an aiming point on a display screen of an image display comprises at least one auxiliary point, an image sensor and an optical filter. The auxiliary point is disposed at the peripheral of the display screen for generating a predetermined spectrum. The image sensor receives signals of the predetermined spectrum generated by the auxiliary point. The optical filter is disposed in front of the image sensor for filtering out spectrum outside the predetermined spectrum such that the image sensor can merely sense the signals of the predetermined spectrum, wherein the auxiliary point is utilized as a reference point for correcting an initial setup and positioning the aiming point so as to position the aiming point inside a predetermined range on the display screen. The present invention also provides a pointer positioning method adapted to the pointer positioning device.