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:
Feb. 24, 2004
Filed:
Sep. 20, 2000
Kohji Numata, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An image synthesis system which makes it possible to refer to a decompressed image that has been stored in an image-data buffer as an image for predicting a succeeding frame at the time of MPEG decoding combines main image data that has been compressed by the MPEG method and subordinate image data that has been compressed by a method different from the MPEG method. The system includes a motion compensation processor for decompressing, on a per-macroblock basis, I-, P- and B-pictures of the main image data, which has first been subjected to inverse quantization and inverse DCT processing; a macroblock storage unit for storing a macroblock of the I-picture; and a subordinate-image macroblock generator for converting the subordinate image data to an MPEG macroblock, translucently combining data of a macroblock having a portion which overlaps the subordinate image and data of a macroblock that has been stored in the macrob lock storage unit, and creating data of the translucently combined macroblocks as a macroblock of the B-picture, which is decompressed by the motion compensation processor.