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:
Oct. 20, 2009
Filed:
Aug. 07, 2008
Nathan Robert Green, Beaverton, OR (US);
Loren L. Mclaury, Hillsboro, OR (US);
Nathan Robert Green, Beaverton, OR (US);
Loren L. McLaury, Hillsboro, OR (US);
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Abstract
In one embodiment, an output driver buffer circuit for a logic device includes an output driver transistor adapted to adjust an output voltage of an output pad; a capacitor adapted to be connected to the transistor gate and further adapted when charged and connected to the gate to turn the transistor on; and a reference voltage source adapted to be connected to the transistor gate and further adapted when connected to the gate to maintain the transistor on. The reference voltage source is further adapted to be connected to the transistor gate after the capacitor has turned the transistor on and independent of the level of the output voltage of the output pad.