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:
Sep. 25, 2012
Filed:
Aug. 27, 2009
Steve Nelson, San Jose, CA (US);
Steve Nelson, San Jose, CA (US);
Seiko Epson Corporation, Tokyo, JP;
Abstract
Methods having corresponding apparatus and computer-readable media comprise: capturing an image of a shape projected upon a display surface; and determining a first rectangle that is the largest inscribed rectangle for the shape, comprising generating a rectangular bounding box containing the shape, dividing the rectangular bounding box vertically into first and second sections, determining a second rectangle that is the largest inscribed rectangle for the shape in the first section of the bounding box, determining a third rectangle that is the largest inscribed rectangle for the shape in the second section of the bounding box, dividing the rectangular bounding box horizontally into third and fourth sections, determining a fourth rectangle that is the largest inscribed rectangle for the shape in a third section of the bounding box, and determining a fifth rectangle that is the largest inscribed rectangle for the shape in the fourth section of the bounding box.