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:
Apr. 17, 2001
Filed:
Mar. 05, 1999
Peter Wagner, Waiblingen, DE;
Joerg Schwendowius, Stuttgart, DE;
Klaus Zimmerman, Stuttgart, DE;
Oliver Erdler, Dortmund, DE;
Sony International (Europe) GmbH, Köln, DE;
Abstract
A weighted median filter interpolator for the interlaced to progressive conversion of video signals is proposed in which for example depending on the available or processable source fields the filter interpolator mode can be set to realize either a three-tap weighted median interpolator or a five-tap weighted median interpolator by respective selection of the weights such that the number of median samples to be processed at a certain time is always an odd number. An increased output quality is achieved if in the case of the five-tap weighted median IPC filter mode a three-dimensional filter aperture is set spreading over a horizontal, a vertical and a temporal dimension of three consecutive fields of an incoming interlaced video signal.