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. 09, 1988
Filed:
Oct. 27, 1986
Hidetoshi Shinada, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An information compression method and apparatus for information forms in which each from is divided into raster lines. Each raster line is divided into multi-bit units. The information of each unit is compared with that of a preceding unit. Agreement and disagreement codes are stored in a unit memory. The pattern information of disagreeing units only is stored in a pattern memory. Each raster line is then compared with all preceding raster line of this and preceeding forms by means of comparing the respective locations of the unit memory and the pattern memory. When inter-raster agreement is found, the respective locations in a raster memory are given the same address used to access the unit memory and only one set of redundant raster data is stored in the unit and pattern memories.