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:
Nov. 11, 2008
Filed:
Jun. 27, 2005
Sanjay R. Pillay, Austin, TX (US);
Brian F. Bounds, Dripping Springs, TX (US);
William Lynn Gallagher, Austin, TX (US);
Sanjay R. Pillay, Austin, TX (US);
Brian F. Bounds, Dripping Springs, TX (US);
William Lynn Gallagher, Austin, TX (US);
Magnum Semiconductor, Inc., Fremont, CA (US);
Abstract
A method of detecting a stream of video data generated utilizing a pull-down technique includes receiving a sequence of fields of interlaced video data. For each pair of a plurality of pairs of the fields of interlaced video in the sequence, pixel values corresponding to pixel positions of pixel lines of a first parity of a first field of the pair of fields are weaved with pixel values corresponding to pixel positions of pixel lines of a second parity of a second field of the pair of fields. For each pixel value corresponding to each pixel position of each pixel line of the second field of the pair of fields after weaving, a check is made for feathering at the corresponding pixel position due to motion. The pixel positions with feathering due to motion in the second field of the pair of fields are counted, and, for the plurality of pairs of fields in the sequence, a check is made for a pattern in the number of counted pixel positions with feathering due to motion in the second field of each pair of fields to determine if the video data comprises data generated utilizing a pull-down technique.