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:
Mar. 20, 2012
Filed:
Nov. 05, 2008
Shou-te Wei, Hsin-Chu, TW;
Shou-Te Wei, Hsin-Chu, TW;
PixArt Imaging Inc., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
While a plurality of encoding blocks included in a micro dotmap are used for marking coordinates and locating a frame center on a displaying medium, a resolution of locating the frame center is raised by finding a microdot having a shortest distance from the frame center respectively in two microdot sets of a header region, or by determining a distance scale between an origin of the encoding block and each of two parallel projection points of both the microdot sets corresponding to the frame center. Both the microdot sets correspond to different dimensions in representing the coordinate of the frame center. The closest one-dimensional coordinates are then combined to form a two-dimensional coordinate of the frame center. Therefore, while applying the abovementioned method on a touch screen manipulated with touches of an optical pen, movements of the frame center on the screen can be manipulated skillfully by a user.