H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
11/2006
11/14/2006	US7135912 Methods and systems for decoupling the stabilization of two loops
11/14/2006	US7135893 Comparator circuit
11/14/2006	US7135669 Low-level light detector and low-level light imaging apparatus
11/14/2006	CA2344263C In-line, unbalanced amplifier, pre-distortion circuit
11/09/2006	WO2006118645A2 Methods and apparatus for precision limiting in transimpedance amplifiers
11/09/2006	WO2006118147A1 Polar coordinate modulation circuit, polar coordinate modulation method, integrated circuit, and radio transmitting apparatus
11/09/2006	WO2006118015A1 Polar coordinate modulating circuit, integrated circuit and radio apparatus
11/09/2006	WO2006117860A1 Differential driving circuit and electronic device incorporating the same
11/09/2006	WO2006074480A3 Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals
11/09/2006	WO2006057774A3 Solid-state ultra-wideband microwave power amplifier employing modular non-uniform distributed amplifier elements
11/09/2006	WO2005086957A3 Highly linear variable gain amplifier
11/09/2006	US20060251428 Method and system for converting an optical received pulse train into an electrical output pulse train
11/09/2006	US20060251264 Dip filter frequency characteristic decision method
11/09/2006	US20060250825 Hybrid switched mode/linear power amplifier power supply for use in polar transmitter
11/09/2006	US20060250190 Trans-conductance amplification circuit, trans-conductance filter circuit, and filtering method
11/09/2006	US20060250189 System and method for providing an input to a distributed power amplifying system
11/09/2006	US20060250188 System and method for testing gate oxide of an amplifier
11/09/2006	US20060250187 Distributed circular geometry power amplifier architecture
11/09/2006	US20060250186 Amplifying device and converter thereof
11/09/2006	US20060250185 Linear amplifier
11/09/2006	US20060250184 SiGe differential cascode amplifier with miller effect resonator
11/09/2006	US20060250183 Systems and methods for driving an output transistor
11/09/2006	US20060250180 Transconductor circuits
11/09/2006	US20060250163 Apparatus and method for adjusting clock skew
11/09/2006	US20060250162 Signal amplification circuit for high-speed operation and semiconductor memory device having the same
11/09/2006	DE10243157B4 Operationsverstärkerschaltung zur Realisierung von Extremwertfunktionen Operational amplifier circuit for realizing extreme value functions
11/09/2006	DE102005020319A1 Amplifier arrangement for global system for mobile communications (GSM) mobile phones has activating/deactivating unit that supplies input control signals to terminals of transistors to control transistors
11/08/2006	EP1720248A1 Multi-band amplifier for test and measurement instruments
11/08/2006	EP1719251A1 Control of a power amplifier for reducing power consumption in a transceiver
11/08/2006	EP1719250A1 Load insensitive power amplifier
11/08/2006	EP1719246A1 Bipolar differential input stage with input bias current cancellation circuit
11/08/2006	EP1719245A2 Switching power amplifier using a frequency translating delta sigma modulator
11/08/2006	EP1719243A2 Radio frequency low noise amplifier with automatic gain control
11/08/2006	EP1718932A2 Series bridge circuit
11/08/2006	CN2836340Y IGBT module drive circuit
11/08/2006	CN2836337Y Low-frequency single track power amplifier
11/08/2006	CN1860679A Amplifier, information communication apparatus and amplification method
11/08/2006	CN1859000A Feedback type full difference modulator
11/08/2006	CN1858994A Two-way amplifying device and semi duplex communication system and method having said device
11/08/2006	CN1858993A Signal output circuit
11/08/2006	CN1858992A High stable amplifying circuit
11/08/2006	CN1284415C Audio reproducing equipment and method
11/08/2006	CN1284298C Power amplifier circuit
11/08/2006	CN1284297C Bias voltage forming circuit, amplifying circuit, streamline type AD adaptor
11/08/2006	CN1284238C Arrangement and method for impedance matching
11/08/2006	CN1284237C Input protection circuit
11/07/2006	US7133649 Negative feedback amplifier for transmitter, transmitter, and method of correcting error in the negative feedback amplifier
11/07/2006	US7133466 Amplifying apparatus
11/07/2006	US7132894 Differential traveling wave driver amplifier
11/07/2006	US7132893 Selectable gain amplifier
11/07/2006	US7132892 Radio frequency power amplifier module
11/07/2006	US7132891 Power amplifier control using a switching power supply
11/07/2006	US7132890 System and method for providing distributed amplification
11/07/2006	US7132889 Translinear variable gain amplifier
11/07/2006	US7132888 Large gain range, high linearity, low noise MOS VGA
11/07/2006	US7132887 Low voltage semi-folded metal oxide semiconductor field effect transistor (MOSFET) amplifier circuit
11/07/2006	US7132886 Detecting load current in multi-reference amplifiers
11/07/2006	US7132884 Power amplification device
11/07/2006	US7132882 Amplifier having multiple offset-compensation paths and related systems and methods
11/07/2006	US7132874 Linearizing apparatus and method
11/07/2006	US7132862 Analog buffer and method for driving the same
11/07/2006	US7132861 Amplifier with digital DC offset cancellation feature
11/07/2006	US7132860 Differential-mode current feedback amplifiers
11/07/2006	US7132859 Common-mode current feedback amplifiers
11/07/2006	US7132821 Reference current generation system
11/07/2006	US7132646 Signal light interruption detecting method and optical amplifier using same
11/02/2006	WO2006116527A1 Differential inductor based low noise amplifier
11/02/2006	WO2006115879A2 Amplifier circuit and rf transmitter incorporating the circuit
11/02/2006	WO2006114792A1 Transformer-capacitor enhancement circuitry for power amplifiers
11/02/2006	WO2006065462B1 A transmitter, a transceiver and a method of controlling a transmit power therefor
11/02/2006	WO2006055891A3 High efficiency doherty amplifier with a segmented main amplifier
11/02/2006	WO2005050829A3 Overcurrent protection in amplifier topologies employing dc isolation
11/02/2006	US20060246856 Transmitter apparatus
11/02/2006	US20060244648 Radio frequency digital-to-analog converter
11/02/2006	US20060244541 Methods and apparatus for precision limiting in transimpedance amplifiers
11/02/2006	US20060244540 Differential amplifier circuitry formed on semiconductor substrate with rewiring technique
11/02/2006	US20060244539 Output circuit for amplifying and outputting an input signal
11/02/2006	US20060244538 Fet amplifier, pulse modulation module, and radar device
11/02/2006	US20060244537 Thermal coupling device
11/02/2006	US20060244536 Non-uniform distributed multi-stage circuits
11/02/2006	US20060244532 Circuit and method for switching active loads of operational amplifier input stage
11/02/2006	US20060244531 Apparatus and method for increasing a slew rate of an operational amplifier
11/02/2006	US20060244530 Digitally adjusted variable gain amplifier (VGA) using switchable differential pairs
11/02/2006	US20060244529 Input structure for a power amplifier and associated methods
11/02/2006	US20060244528 Multi-band amplifier for test and measurement instruments
11/02/2006	US20060244525 Circuit and method of establishing dc bias levels in an rf power amplifier
11/02/2006	US20060244523 Power control and modulation of switched-mode power amplifiers with one or more stages
11/02/2006	US20060244522 Modulated triangular wave amplifier
11/02/2006	US20060244520 Self zeroing for critical, continuous-time applications
11/02/2006	US20060244507 Dc level wandering cancellation circuit
11/02/2006	US20060244494 Low power and high efficiency voltage-to-current converter with improved power supply rejection
11/02/2006	US20060244493 Ultra-drowsy circuit
11/02/2006	EP1717972A1 Automatic bit rate control circuit
11/02/2006	EP1716723A1 Output stage for a hearing aid and method of driving output stage
11/02/2006	EP1716637A1 Load-invariant amplifier
11/02/2006	EP1384286B9 Inverted-f ferroelectric antenna
11/02/2006	EP0996996B1 A high speed and high gain operational amplifier
11/01/2006	CN1856933A High performance low noise amplifier
11/01/2006	CN1855705A Power amplifier with automatic switching function
11/01/2006	CN1855703A Digital analog circuit, digital driver and display device

1 ... 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 ... 441