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. 03, 2012
Filed:
Nov. 27, 2007
Chee-chun Leung, Tao Yuan Shien, TW;
Yun-cheng Liu, Tao Yuan Shien, TW;
Ching-chun Chiang, Tao Yuan Shien, TW;
Maw-lin Hsu, Tao Yuan Shien, TW;
Chee-Chun Leung, Tao Yuan Shien, TW;
Yun-Cheng Liu, Tao Yuan Shien, TW;
Ching-Chun Chiang, Tao Yuan Shien, TW;
Maw-Lin Hsu, Tao Yuan Shien, TW;
Quanta Computer Inc., Tao Yuan Shien, TW;
Abstract
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.