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:
Sep. 29, 1998
Filed:
Mar. 20, 1997
Applicant:
Inventor:
Takahisa Hiraide, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G06F / ; G06F / ; G06G / ;
U.S. Cl.
CPC ...
371 274 ; 395500 ; 39518309 ; 364578 ;
Abstract
A test pattern preparation system for testing an LSI circuit, the system includes: a circuit data file for storing various circuit data; an old test pattern file for storing old test patterns; a test pattern preparation unit for performing a logic simulation, detecting 'simultaneous-change action' based on a result of the logic simulation, and preparing a new test pattern in accordance with the circuit data and the old test patterns; and a new test pattern file for storing new test patterns which are prepared by the test pattern preparation unit.