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. 26, 2000
Filed:
Feb. 06, 1998
Applicant:
Inventors:
Todd A Clatanoff, Allen, TX (US);
Vishal Markandey, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348701 ;
Abstract
A method and structure for producing a noise reduced video signal. The data corresponding to a pixel in a first frame is differenced with signal corresponding to that pixel in a second frame. The difference signal is then recursively noise filtered, clipped and a non-linear function is applied. The filtered and clipped difference signal is then multiplied by the difference signal and added back into the original data. The resulting data is motion adapted and noise reduced, and is used in converting from interlace to progressive scan. The method can be integrated with scaling processes as well.