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. 08, 2008
Filed:
Nov. 04, 2004
Kenneth P. Hinckley, Kirkland, WA (US);
Michael J. Sinclair, Kirkland, WA (US);
Richard S. Szeliski, Bellevue, WA (US);
Matthew J. Conway, Seattle, WA (US);
Erik J. Hanson, Woodinville, WA (US);
Kenneth P. Hinckley, Kirkland, WA (US);
Michael J. Sinclair, Kirkland, WA (US);
Richard S. Szeliski, Bellevue, WA (US);
Matthew J. Conway, Seattle, WA (US);
Erik J. Hanson, Woodinville, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A computer input device includes a camera for capturing an image of a pattern on a surface. A processor in the computer input device determines equations for lines from the image of the pattern, applies the line equations to a transform to form transformed line equations, and uses the transformed line equations to determine the height of the computer input device above the surface.