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:
Jun. 16, 1998
Filed:
Jun. 06, 1996
Applicant:
Inventor:
Ichiro Kuroda, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36472502 ; 36472503 ;
Abstract
A two-dimensional discrete cosine transformation circuit performs 8 points.times.8 points two-dimensional discrete cosine transformation. The circuit comprises a first stage calculation circuit, a second stage calculation circuit, and a third stage calculation circuit. The first stage calculation circuit includes sixteen two-dimensional butterfly computing circuits. The second stage calculation circuit includes four two-dimensional butterfly computing circuits, eight first one-dimensional butterfly computing circuits and eight second one-dimensional butterfly computing circuits. The third stage calculation circuit includes nine tensor product computing elements.