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:
Feb. 17, 2004

Filed:

Jan. 18, 2002
Applicant:
Inventors:

Hans Jurgen Mattausch, Higashihiroshima, JP;

Takayuki Gyoten, Kobe, JP;

Assignee:

President of Hiroshima University, Higashihiroshima, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 1/500 ;
U.S. Cl.
CPC ...
G11C 1/500 ;
Abstract

An associative memory composed of plural chips or a single chip which is preferably used in the fields of bandwidth compression for video images in mobile communication terminals and artificial intelligence systems. The associative memory is a small-area associative memory formed using CMOS technology with a fast parallel minimum-distance-search capability. The transistor number of the provided search circuit is only linear proportional to the number of rows of the associative memory. Therefore, the increase in the number of required circuits is small even if the unit number of the input data or the unit number of the reference data is large. With the associative memory, it is possible to realize the functions of video signal compression and object recognition necessary for artificial intelligence systems, data bank systems and mobile network terminals with a single chip or plural chips.


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