Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Dual feedback amplifier Image Number 3 for United States Patent #3972002. Current and voltage feedback are used in separate frequency dependent major loops around a high gain broadband amplifier to produce frequency shaped gain and matched input and output impedances.       Recently Added Patents Semiconductor device Acoustic resonator and sound chamber MEK1 polypeptides Systems and methods for magnetic shielding User interface contrast filter Providing additional information with session requests Display device and driving method thereof   Randomly Featured Patents Hypodermic needle shield Digital hybrid amplifier calibration and compensation method 2,3-diaryl- or heteroaryl-substituted 1,1,1-trifluoro-2-hydroxypropyl compounds High fidelity loudspeaker Amphibious dirigible airships Nut Multipoint sensing system Optimized convection based mass airflow sensor Apparatus for terrying yarn Organic optical recording medium © 2006-2008 PatentGenius. All Rights Reserved.