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:
Sep. 12, 2000
Filed:
Mar. 01, 1996
Shinichi Kawakami, Moriguchi, JP;
Masahiro Honjo, Sakai, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A video signal compression-encoding apparatus for receiving a plurality of successive video signals and subjecting the video signals to intra-frame encoding, forward predictive inter-frame encoding, and bidirectional predictive inter-frame encoding, thereby generating I-pictures, P-pictures, and B-pictures, respectively, is provided. The apparatus includes: an assigned data generator allowing a user to assign a picture to be subjected to the intra-picture encoding among the input pictures and generating assigned data representing the picture assigned by the user; and a group structure generator generating a group structure in such a manner that, in a case where the encoding is performed using a first group structure satisfying N=N1 and M=M1 (N1 and M1: natural numbers), when the picture assigned by the user is not identical with a second I-picture, a picture group having a second group structure different from the first group structure is positioned before the picture assigned by the user, wherein N is a period of each of the I-pictures, M is a period of each of the P-pictures, and the picture group includes a first I-picture among the I-pictures to a picture immediately before a second I-picture, which is the I-picture next to the first I-picture. A recording medium recorded by the apparatus and a video signal reproducing apparatus for reproducing the recording medium are also provided.