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:
May. 17, 1994
Filed:
Jun. 23, 1993
Applicant:
Inventor:
John W Richards, Stockbridge, GB;
Assignee:
Sony United Kingdom Ltd., Staines, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348443 ; 358345 ; 348441 ;
Abstract
In a method of converting a 60 field/s 2:1 interlaced video signal to 24 frame/s film, for each sequence of five input fields: the fields of at least one pair of the input fields are each progressive scan converted to form a pair of frames, and a weighted addition of the frames is made on a pixel-by-pixel basis to form an output video frame with a shifted temporal centroid, so that the temporal centroids of the output video frames are equally spaced. The output video frames are then recorded on film. In another method, the progressive scan conversion and weighted addition is performed by a single filter.