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:
Jul. 30, 1996
Filed:
Jun. 27, 1994
Shunichi Ishiwata, Chiba-ken, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An image coding and decoding apparatus which can produce an improved amount of the effective data per time unit especially in a case where the image data are processed in the field unit. The apparatus includes: a subtracting unit which subtracts a reference image signal from an input image signal; a intra-frame coding unit which codes the image signal sent from the subtracting unit, and data on a reference image signal; and an inter-frame prediction unit which performs an image prediction process among previous or future image data and which sends the reference image signal to the subtracting unit and the intra-frame coding unit, wherein the apparatus is characterized in that the inter-frame prediction unit includes an input-output circuit in which pixel data of luminance signals are separated from those of color signals, and the thus separated pixel data are arranged in a single row of a horizontal direction as a minimum unit, so that the amount of effective data accessible in a time unit can be significantly increased in the course of processing data in the field unit.