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:
Aug. 04, 2009
Filed:
Sep. 26, 2003
Bunsho Kuramori, Tokyo, JP;
Mitsunori Murakami, Tokyo, JP;
Bunsho Kuramori, Tokyo, JP;
Mitsunori Murakami, Tokyo, JP;
Oki Semiconductor Co., Ltd., Tokyo, JP;
Abstract
A substrate voltage generating circuit including level shifting circuits, a first power supply node of a first potential level Va second power supply node of a second potential level Vlower than the first potential level, and an output node OUT.vbb having a third potential level Vlower than the second potential level. The level shifting circuits are coupled between the first power supply node and the output node, receiving an input signal having the first and second potential levels, and outputting an output signal Vhaving the first potential level and the third potential level. The substrate voltage generating circuit also includes a switch circuit connecting the second power supply node to the output node in response to the output signal V