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:
Dec. 11, 2012
Filed:
Apr. 07, 2010
Roy Goh, Redmond, WA (US);
Andrew Juenger, Woodinville, WA (US);
Yi He, Issaquah, WA (US);
Stuart William Milton, Woodinville, WA (US);
Roy Goh, Redmond, WA (US);
Andrew Juenger, Woodinville, WA (US);
Yi He, Issaquah, WA (US);
Stuart William Milton, Woodinville, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
One disclosed embodiment includes detecting flicker in a photographic setting. A plurality of samples are obtained from a light detector circuit of a camera, each of which has a value that is dependent upon intensity of light incident upon the camera. The method further includes processing the samples to identify whether the incident light is varying in intensity at one or more pre-selected frequencies. The processing may include multiplying the samples with one or more periodic signals to generate scalar product outputs, and analyzing the scalar product outputs to ascertain the presence of periodic flicker.