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:
Jan. 27, 2004
Filed:
Mar. 27, 2002
Fujitsu Limited, Kawasaki, JP;
Abstract
First and second voltage generators generate a first internal power supply voltage to be supplied to a first internal power supply line and a second internal power supply voltage to be supplied to a second internal power supply line, respectively. A short circuit shorts the first and second internal power supply lines when operations of both the first and second voltage generators are suspended. The first and second internal power supply lines become floating, and charges stored in the respective internal power supply lines drain out gradually. Here, since the charges are redistributed to both of the internal power supply lines, the first and second internal power supply voltages become equal in value as they drop off. Consequently, the first and second internal power supply voltages can be prevented from inversion, and internal circuits connected to both the first and second internal power supply lines can be precluded from malfunctioning.