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:
May. 19, 2015
Filed:
May. 11, 2012
Ken Takeuchi, Tokyo, JP;
Teruyoshi Hatanaka, Tokyo, JP;
Koichi Ishida, Tokyo, JP;
Tadashi Yasufuku, Tokyo, JP;
Makoto Takamiya, Tokyo, JP;
Takayasu Sakurai, Tokyo, JP;
Ken Takeuchi, Tokyo, JP;
Teruyoshi Hatanaka, Tokyo, JP;
Koichi Ishida, Tokyo, JP;
Tadashi Yasufuku, Tokyo, JP;
Makoto Takamiya, Tokyo, JP;
Takayasu Sakurai, Tokyo, JP;
THE UNIVERSITY OF TOKYO, Tokyo, JP;
Abstract
A booster circuit is configured, such that: in response to a reading request for reading data from a flash memory, when a voltage of an output terminal detected by a voltage detection circuit is not higher than a voltage, an oscillator outputs a control clock signal of predetermined on time and off time to a transistor of a boost converter to perform switching control of the transistor; and when the voltage detection circuit detects that the voltage of the output terminal reaches a voltage, an oscillator outputs a control clock signal of an on time and an off time input from a selection circuit to a transistor of a boost converter to perform switching control of the transistor.