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. 24, 2001
Filed:
Jan. 28, 1999
John A. Murdock, Apalachin, NY (US);
Agnes Y. Ngai, Endwell, NY (US);
Edward F. Westermann, Endicott, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A digital video encoder is provided having an enhanced search range for motion estimation and compensation. The encoder is adapted to define from a reference frame a diamond-shaped search window about a current position of a current macroblock to be encoded. The encoder partitions the diamond-shaped search window into multiple search regions and reassembles the multiple search regions into a rectangular search area. This rectangular search area is then used to search the diamond-shaped search window for a best matching reference macroblock to the current macroblock.