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:
Dec. 10, 2013
Filed:
Mar. 09, 2012
Yi-yuh Hwang, Taoyuan County, TW;
Chin-der Hwang, Hsinchu County, TW;
Chih-ming Liao, Taoyuan County, TW;
Ting-wei Chiang, New Taipei, TW;
Wei-guo Chang, Taoyuan County, TW;
Wen-cheng Huang, Taipei, TW;
Yi-Yuh Hwang, Taoyuan County, TW;
Chin-Der Hwang, Hsinchu County, TW;
Chih-Ming Liao, Taoyuan County, TW;
Ting-Wei Chiang, New Taipei, TW;
Wei-Guo Chang, Taoyuan County, TW;
Wen-Cheng Huang, Taipei, TW;
Abstract
An actuating apparatus includes a motion driving module rigidly coupled to a platform, a working stage driven by the motion driving module to move relative to the platform, a speckle image capturing module rigidly coupled to the working stage and capable of capturing a speckle image of a sub-region of a reference region of the platform, and a control module operable in a positioning mode, where the control module obtains a current position of the working stage in a coordinate system associated with the platform based on a comparison between the captured speckle image and reference speckle image information that is associated with and unique to the reference region, and controls the motion driving module to drive the working stage toward a target position in the coordinate system based on a difference between the current position and the target position.