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:
Apr. 07, 2015
Filed:
Jan. 08, 2013
Zeroplus Technology Co., Ltd., New Taipei, TW;
Chiu-Hao Cheng, New Taipei, TW;
Zeroplus Technology Co., Ltd., New Taipei, TW;
Abstract
A pointer positioning system includes an image generating unit, a light-spot generating unit, an operating unit, a calculating unit, and an image unit. The image generating unit creates an image on a display region. The light-spot generating unit projects positioning spots and identifying spots on the display region. The operating unit has an invisible-light camera to sense an image of a part of the entire display region. The calculating unit compares a distribution of the positioning spots and the identifying spots which is sensed by the invisible-light camera with a reference distribution stored in a memory, and the image unit shows a pointer image at a pointing position of the display region accordingly.