Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Input/output buffer for protecting a circuit from signals received from external devices Image Number 12 for United States Patent #7268592. An input/output buffer that protects a circuit from voltage signals provided from an external device. The input/output buffer includes a reference power generation circuit connected to a high voltage power supply and a low voltage power supply to convert the voltage of an external voltage signal and generate reference power. The reference power generation circuit has a protection circuit including a plurality of MOS transistors for decreasing the voltage of the external voltage signal to a predetermined voltage when the input/output buffer is not supplied with the voltage of the high voltage power supply. Each of the MOS transistors has a back gate connected to a predetermined node at which the voltage is less than the voltage of the high voltage power supply and greater than the voltage of the low voltage power supply.       Recently Added Patents Personal display holder Apparatus and method for measuring articles including conveyor-weighers supported on weighing unit Vinyl alcohol copolymers for use in aqueous dispersions and melt extruded articles Venturi didgeridoo Electromagnetic coil assemblies having tapered crimp joints and methods for the production thereof Condition changing device Method for enhancing in-vivo image contrast   Randomly Featured Patents Posterior stabilization system Apparatus for die casting of metal matrix composite materials from a self-supporting billet Catalytic reforming process Laminate component having different elasticity in the edge regions Polyester film Baseball cap retention device Appliance leveling apparatus Series-excited parallel-loaded resonant circuit Method of forming and piercing a tube Connector plug having a radio frequency suppression filter © 2006-2008 PatentGenius. All Rights Reserved.