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.

Date of Patent:
Jan. 30, 1996

Filed:

Jun. 03, 1994
Applicant:
Inventors:

Humor Hwang, Kyungki, KR;

Myeong-hwan Lee, Kyungki, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348448 ; 348607 ;
Abstract

An interlaced-to-progressive scanning converting apparatus for double-smoothing which prevents picture deterioration wherein the scanning method for a television signal is converted from an interlaced scanning method into a progressive scanning method, and a method therefor. The apparatus includes a double-smoothing circuit including a median-filter for median-filtering an interlaced scanning signal, a censoring circuit for censoring the median-filtered signal according to predetermined bias values, an order statistics filter (OSF) for setting a predetermined weighing coefficient according to the censored signal. The apparatus further includes an interlaced-to-progressive converter for converting the double-smoothed interlaced scanning signal into a progressive scanning signal. The apparatus and corresponding method, thus, prevent picture deterioration phenomena such as inter-line flickering, line crawling or stepped-shaped edges.


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