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.

Date of Patent:
Jul. 03, 1990

Filed:

Sep. 07, 1988
Applicant:
Inventors:

Yukitoshi Tsuboi, Yokohama, JP;

Masaaki Takizawa, Koganei, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
3582611 ; 358426 ; 358427 ; 382 56 ;
Abstract

An entropy coding system in a code assign system for processing image coded data such that for data (particular data) having a particular value, a run length coding is achieved on a run length thereof and for data (nonparticular data) having a value other than the particular value, a Huffman coding is conducted on the value thereof so as to generate a coded or resultant code. When achieving the Huffman coding on the nonparticular date, for the nonparticular data immediately following particular data, the coding operation is executed by use of a Huffman coding table including prefix codes, whereas for the nonparticular data not immediately following particular data, the coding operation is achieved by use of a Huffman coding table including prefix codes.


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