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. 04, 2001
Filed:
Oct. 18, 1999
Souichirou Yoshida, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An internal voltage boosting circuit has an oscillator circuit that generates a signal of a prescribed frequency under the control of an oscillator control signal and a stepped-up voltage generating circuit that inputs the signal output by the oscillator circuit and outputs a prescribed stepped-up voltage. In the stepped-up voltage generating circuit, in order to prepare for a next voltage boosting operation, one end of a voltage boosting capacitance is connected to one end of a voltage boosting capacitance of another voltage boosting circuit that operates with a phase difference of 180 degrees, the accumulated charge therein being re-used, after which return is made to the ground potential so as to achieve a voltage boosting to a prescribed stepped-up voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile