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. 25, 2014
Filed:
Apr. 22, 2013
Microsoft Corporation, Redmond, WA (US);
Stephen E. Hodges, Cambridge, GB;
Hrvoje Benko, Seattle, WA (US);
Ian M. Sands, Seattle, WA (US);
David Alexander Butler, Great Cambourne, GB;
Shahram Izadi, Cambridge, GB;
William Ben Kunz, Seattle, WA (US);
Kenneth P. Hinckley, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
In some implementations, a touch point on a surface of a touchscreen device may be determined. An image of a region of space above the surface and surrounding the touch point may be determined. The image may include a brightness gradient that captures a brightness of objects above the surface. A binary image that includes one or more binary blobs may be created based on a brightness of portions of the image. A determination may be made as to which of the one more binary blobs are connected to each other to form portions of a particular user. A determination may be made that the particular user generated the touch point.