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:
Dec. 09, 2003
Filed:
May. 01, 2002
Applicant:
Inventor:
Kazuo Asami, Hyogo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/40 ; G05F 3/16 ; H03K 1/7687 ;
U.S. Cl.
CPC ...
G05F 1/40 ; G05F 3/16 ; H03K 1/7687 ;
Abstract
In a non-contact IC card, corresponding to increase/decrease of an operation current of an internal circuitry, absorbing current of an ICC fluctuation absorbing circuit is temporarily decreased/increased by the amount corresponding to the increase/decrease, and thereafter, the absorbing current is gradually increased/decreased to the initial value and an output current of a regulator is gradually increased/decreased. Therefore, abrupt change in output current of the regulator can be prevented, and an internal power supply potential can be stabilized.