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:
Sep. 27, 2011
Filed:
Jun. 27, 2006
Cecile M. Foret, Mountain View, CA (US);
Cecile M. Foret, Mountain View, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Embodiments of the present invention relate to methods and systems that may detect cadences and duplicate fields in a video sequence, and correct the sequence to retrieve the original progressive content. Methods according to the present invention may compare consecutive fields of the same parity for similarity, and consecutive fields of the opposite parity for field and frame activity. By analyzing patterns in the similarity and activity of the fields, the cadence may be determined. The invention also provides methods that may be used to adjust for changes in the cadence, such as can result from scene changes in the video stream.