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. 16, 2013
Filed:
Jan. 12, 2011
Yung-yu Huang, Hsinchu, TW;
Hsi-pin LI, Hsinchu, TW;
Yung-Yu Huang, Hsinchu, TW;
Hsi-Pin Li, Hsinchu, TW;
Silitek Electronic (Guangzhou) Co., Ltd., Guangzhou, CN;
Lite-On Technology Corporation, Taipei, TW;
Abstract
A auto-focusing method for projection of a computing device with imaging function is illustrated. The computing device exemplarily includes a projection unit, an image receiving unit, and a processing unit. The method firstly controls the projection unit to project images on plural positions along an optical axis. The method then controls the image receiving unit to receive the images, which are regarded as candidate images, projected on the positions by the projection unit. The candidate images correspond to the projective positions. The method further receives the candidate images captured by the image receiving unit, and compute their definitions. Therefore, the image with a greatest definition may be acquired and regarded as a focus image. The focus image's corresponding position is a focus position. After acquiring the focus position, an image may be projected thereon. The illustrated computing device is enabled to complete the image focusing automatically.
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