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:
Jun. 19, 2007

Filed:

May. 15, 2003
Applicants:

Seung-joon Yang, Suwon, KR;

Young-ho Lee, Seoul, KR;

Inventors:

Seung-joon Yang, Suwon, KR;

Young-ho Lee, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/01 (2006.01); H04N 5/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for detecting whether an image signal is in a film mode, includes a first field buffer, a second field buffer and a third field buffer that sequentially buffer respective fields of the image signal by order of input, using the respective fields stored in the first, the second and the third field buffers. The apparatus for detecting whether an image signal is in the film mode, includes a motion information calculator calculating a motion information of the respective fields by comparing variations of a motion in the respective fields stored in the first and the third field buffers, a motion information buffer storing the motion information in unit of a predetermined number of fields, and a pattern matching unit determining whether the image signal is in the film mode by comparing the motion information of the respective fields stored in the unit of the predetermined number of fields with a pattern of the field having a predetermined periodicity in accordance with a 3:2 pull-down conversion, and by subsequently determining whether the motion information matches the pattern.


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