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. 04, 1984
Filed:
Sep. 09, 1982
Akiyoshi Tanaka, Kawasaki, JP;
Kunio Sannomiya, Machida, JP;
Hiroaki Kotera, Kawasaki, JP;
Kunio Yoshida, Kawasaki, JP;
Yoshihiro Uno, Machida, JP;
Hiroaki Miwa, Kawasaki, JP;
Matsushita Electric Industrial Co., Osaka, JP;
Matsushita Graphic Communications Systems, Inc., Tokyo, JP;
Abstract
In a band compression method using an adaptive prediction system preferably applicable to facsimile transmission, a method of selecting picture elements to be referred (hereinafter defined as reference picture elements) for predicting an information value of a picture element wherein the reference picture elements are not selected uniformly and continuously from the neighborhood of the predicted picture element, but a group of picture elements (the first order picture elements) adjacent to the predicted picture element and further a group of picture elements of equal or higher order than the third order are selected as reference picture elements by excluding those shaded picture elements which lie on lines connecting the predicted picture element and the first order picture elements.