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. 03, 2009
Filed:
Apr. 29, 2005
Robert Allan Brigham, Ii, Woodinville, WA (US);
David Joshua Kurlander, Seattle, WA (US);
Nigel S. Keam, Redmond, WA (US);
Andrew D. Wilson, Seattle, WA (US);
Robert Allan Brigham, II, Woodinville, WA (US);
David Joshua Kurlander, Seattle, WA (US);
Nigel S. Keam, Redmond, WA (US);
Andrew D. Wilson, Seattle, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A light pointer is selectively activated to direct a light beam onto an interactive display surface, forming a pattern of light that is detected by a light sensor disposed within an interactive display table. The waveband of the light produced by the light pointer is selected to correspond to a waveband to which the light sensor responds, enabling the light sensor to detect the position of the pattern on the interactive display surface, as well as characteristics that enable the location and orientation of the light pointer to be determined. Specifically, the shape and size of the pattern, and the intensity of light forming the pattern are detected by the light sensor and are processed to determine the orientation of the light pointer and its distance from the interactive display surface. The pattern may comprise various shapes, such as circles, arrows, and crosshairs.