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:
Jun. 13, 2006
Filed:
Aug. 18, 2004
Erik J. Mentze, Moscow, ID (US);
Herbert L. Hess, Moscow, ID (US);
Kevin M. Buck, Pullman, WA (US);
David F. Cox, Tucson, AZ (US);
Erik J. Mentze, Moscow, ID (US);
Herbert L. Hess, Moscow, ID (US);
Kevin M. Buck, Pullman, WA (US);
David F. Cox, Tucson, AZ (US);
Idaho Research Foundation, Inc., Moscoe, ID (US);
Abstract
A shifter circuit comprises, in one embodiment, an input voltage divider stage comprising multiple transistors arranged in a transistor stack defining a plurality of intermediate nodes. The transistor stack is connected between an input signal and ground and has at least one output. An inverting buffer stage is connected to a supply voltage and coupled to the input voltage divider's output. The inverting buffer stage is configured to provide an inverted output signal. Means are provided for stepping up the inverted output signal, receiving a stepped up output signal and providing a level-shifted output signal at a voltage level lower than that of the input signal.