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. 18, 1997
Filed:
Apr. 21, 1995
Applicant:
Inventor:
Hiroyuki Watanabe, Tokyo, JP;
Assignee:
Seta Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341 51 ; 341106 ;
Abstract
A lossless type data compression method employing a dictionary system is suitable for character generator of a game machine and so forth. A working data strings are generated from an original data stream. Two sequential working data strings are combined to form a combined string. A dictionary is generated by registering the combined strings having occurrence frequency higher than a given value with a dictionary number. The combined strings in the data stream are replaced with the dictionary numbers corresponding to the combined strings in the dictionary.