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. 17, 2002
Filed:
Oct. 08, 1998
Masato Yamazaki, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
Decoded image converting circuitry includes a display image compression circuit to which image data are input in the form of consecutive macroblocks. The compression circuit compresses each macroblock, a sequence of sixteen horizontal image data at a time, with a preselected compression ratio. The compressed image data representative of an I (Intra coded) picture and a P (Predictive coded) picture are written to a first memory while the compressed image data representative of a B (Bidirectionally predictive coded) picture are written to a second memory. The image data stored in the first and second memories each is read out at a preselected timing allowing raster scan data to be formed. A display image expansion circuit expands the compressed I and P pictures and B picture and thereby outputs raster scan data. An apparatus including the decoded image converting circuitry and a method practicable with the apparatus are also disclosed.