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. 21, 2010
Filed:
Feb. 26, 2008
Yasuhiro Tonda, Kanagawa, JP;
Hidetoshi Ozoe, Kanagawa, JP;
Hideaki Uemura, Kanagawa, JP;
Junichi Yamada, Kanagawa, JP;
Kenji Hibino, Kanagawa, JP;
Tatsuya Saito, Kanagawa, JP;
Yasuhiro Tonda, Kanagawa, JP;
Hidetoshi Ozoe, Kanagawa, JP;
Hideaki Uemura, Kanagawa, JP;
Junichi Yamada, Kanagawa, JP;
Kenji Hibino, Kanagawa, JP;
Tatsuya Saito, Kanagawa, JP;
NEC Electronics Corporation, Kawasaki, Kanagawa, JP;
Abstract
A voltage generator for nonvolatile memory that generates an applied voltage to be applied to a nonvolatile memory includes a first voltage generator to generate a first voltage corresponding to the applied voltage, a reference voltage generator to generate a reference voltage, a comparator to compare the first voltage with the reference voltage and output a boost operation control signal according to a comparison result, and a booster to generate the applied voltage in a pulse-like voltage waveform by starting or stopping boost operation based on the boost operation control signal. The applied voltage corresponding to the first voltage upon inversion of the boost operation control signal is varied within one pulse-like voltage waveform by varying one of the first voltage and the reference voltage.