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. 20, 1990
Filed:
Jun. 23, 1987
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382 56 ; 3582621 ; 358426 ; 382-6 ;
Abstract
An image processing apparatus includes a memory for storing image data, a loss-compression circuit for loss-compressing the image data, an expansion circuit for expanding the loss-compressed image data, and a difference circuit for calculating a difference between the original image data of the image memory and the expanded image data of the expansion circuit. A lossless compression circuit lossless-compresses the difference image data obtained by the difference circuit. A multiplexer multiplexes the loss-compressed image data output from the loss-compression circuit, with the lossless-compressed difference data obtained by the lossless-compression circuit.