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:
Jan. 06, 2004
Filed:
Feb. 13, 2001
Seung Hyeon Rhee, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
An apparatus converts a screen with an aspect ratio of 4:3 to a screen with an aspect ratio of 16:9. When the input image is given as a frame buffer that is not encoded, the present invention extracts motion vector by performing block motion matching operation, and when the input image is a digitally encoded bit stream, it extracts motion vectors from the decoded data. The motion vectors are subjected to filtering in terms of time and space. The apparatus extracts global motion information from the motion vectors that have been filtered. Utilizing the global motion information extracted from and the partial images from the adjacent frames, the present invention generates the image information that is displayed on the blank regions of the screen. The blank regions on left and right of the screen caused by the differences in the screen aspect ratios are composed from the actual image information.