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. 29, 2016
Filed:
Sep. 17, 2010
Donald P. Bynum, Heath, TX (US);
Gregory A. Magel, Dallas, TX (US);
Robert Leo Dawes, Bedford, TX (US);
Larry V. Moore, Richardson, TX (US);
Minhaj Ahmed, Plano, TX (US);
Donald P. Bynum, Heath, TX (US);
Gregory A. Magel, Dallas, TX (US);
Robert Leo Dawes, Bedford, TX (US);
Larry V. Moore, Richardson, TX (US);
Minhaj Ahmed, Plano, TX (US);
Itac Systems, Inc., Garland, TX (US);
Abstract
A cursor control device having a light source and an image sensor for optically tracking motion. The device includes an upwardly facing dome or window that provides a visual and tactile interface for user interaction. The user's hand or finger, bare or gloved, or other object controlled by the user, can be moved in close proximity or touching the dome, and means are provided to discriminate against the motion of objects that are not close to the dome in order to prevent unwanted cursor motion. Said means can include optics having a limited depth of focus, adaptive illumination processing for controlling the intensity of light emitted from the light source to optimize sensor operation, and/or processing for projecting cursor motion in accordance with a detected level of confidence in the sensor data.