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. 30, 2015
Filed:
Oct. 22, 2013
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventor:
Hiroshi Okano, Hachioji, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01); H03L 5/00 (2006.01); G06F 1/26 (2006.01); G06F 1/28 (2006.01);
U.S. Cl.
CPC ...
H03L 5/00 (2013.01); G06F 1/26 (2013.01); G06F 1/28 (2013.01);
Abstract
A semiconductor integrated circuit includes a user circuit and a power supply noise suppression circuit. The user circuit includes a plurality of circuit modules each containing an operation ratio control circuit. The power supply noise suppression circuit judges an amount of current fluctuation occurring in the user circuit by monitoring an operation ratio of each of the plurality of circuit modules, and controls, via each of the operation ratio control circuits, the operation ratio of a corresponding one of the circuit modules in accordance with a result of the judgment of the amount of current fluctuation.