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:
Jun. 16, 2015
Filed:
Apr. 13, 2012
Chia-cheun Liang, Hsin-Chu, TW;
Ming-tsan Kao, Hsin-Chu, TW;
Chia-Cheun Liang, Hsin-Chu, TW;
Ming-Tsan Kao, Hsin-Chu, TW;
PIXART IMAGING INCORPORATION, R.O.C., Hsin-Chu, TW;
Abstract
An interactive image system includes a host generating interactive images; a light source generating at least one light beam; and an interactive control device transmitting data to the host and switching between an operation status and an idle status. The interactive control device includes: an image sensor capturing a first picture in the idle status, wherein the first picture has a reference point image formed by the light beam; and a control circuit selecting a pixel area according to the position of the reference point image in the first picture, controlling the image sensor to obtain a second picture according to the pixel area, and comparing a threshold value with the brightness information of at least one pixel in the pixel area of the second picture to confirm whether the interactive control device is still in the idle status.