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. 24, 2013
Filed:
Aug. 25, 2011
Yasushige Ogawa, Kasugai, JP;
Yasushige Ogawa, Kasugai, JP;
Fujitsu Semiconductor Limited, Yokohama, JP;
Abstract
A level shift circuit including a level conversion unit that converts an input signal having a signal level of a first voltage into a signal having a signal level of a second voltage that is higher than the first voltage. The level conversion unit includes first and second MOS transistors of a first conductivity type and third and fourth MOS transistors of a second conductivity type, which differs from the first conductivity type and of which switching is controlled in accordance with the input signal. The third and fourth MOS transistors include drains supplied with the second voltage via the first and second MOS transistors, respectively. A control unit, when detecting a decrease in the first voltage, controls a body bias of the third and fourth MOS transistors to decrease a threshold voltage of the third and fourth MOS transistors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile