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:
May. 21, 2002
Filed:
Jan. 22, 1999
Kenji Sugiyama, Yokosuka, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A first bit stream of moving picture that has been encoded by motion-compensated prediction is converted to a second bit stream of moving picture. A bit stream of first motion vector data is separated from the first bit stream. The first motion vector corresponds to a first block size or first accuracy of motion compensation. A portion or all of the first bit stream is decoded by motion-compensated prediction at the first blok size or the first accuracy of motion compensation using the first motion vector data to obtain a decoded picture or a decoded signal at an intermediate processing stage. A bit stream of second motion vector data is formed by motion-compensated prediction using the first motion vector data. The second motion vector data corresponds to a second block size that is different from the first block size or second accuracy of motion compensation that is different from the first accuracy of motion compensation. The decoded picture or the decoded signal is encoded by motion-compensated prediction at the second accuracy of motion compensation using the second motion vector data to obtain a third bit stream. The third bit stream and the bit stream of the second motion vector data are multiplexed to obtain the second bit stream.