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. 26, 2013

Filed:

Jan. 23, 2009
Applicant:

Takahide Yoshikawa, Kawasaki, JP;

Inventor:

Takahide Yoshikawa, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/22 (2006.01); G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

Designation of observation points in an observation target circuit for which operations are observed in simulation is accepted, and circuit data of an observation circuit is attached to circuit data of the observation target circuit so that the observation circuit is connected to the observation target circuit according to designation data of the observation points. At this time, a double-buffer configuration is adopted for the observation circuit, and the number of occurrence times of a specific state at a specific observation point during a first period and the number of occurrence times of the specific state at the specific observation point during a second period are alternately outputted and stored into RAM.


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