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:
Jul. 27, 1999
Filed:
Apr. 11, 1997
Applicant:
Inventors:
Toshiyuki Shimizu, Kawasaki, JP;
Toshihiro Asai, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
714724 ;
Abstract
In a large system such as a parallel computer system, a scan device forms a scan path by hierarchically connecting input and output signal lines of integrated circuits, thereby enabling creating of a short scan path which contain only the necessary integrated circuits. This allows a scan test such as JTAG-SCAN to be effectively made.