| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 04/02/2009 | US20090085666 Rf amplifying device |
| 04/02/2009 | US20090085665 Variable gain amplifying device |
| 04/02/2009 | US20090085664 Power amplifier having an adaptive amplifying mechanism |
| 04/02/2009 | US20090085663 Transconductor Having High Linearity and Programmable Gain and Mixer using the Same |
| 04/02/2009 | US20090085662 Common mode voltage extraction circuit |
| 04/02/2009 | US20090085661 Methods and apparatus for process invariant transconductance |
| 04/02/2009 | US20090085660 Agc module and method for controlling noise figure and intermodulation characteristics therein |
| 04/02/2009 | US20090085659 Differential amplifier |
| 04/02/2009 | US20090085641 Circuit and method for integrating a voltage signal |
| 04/02/2009 | US20090085597 Process Monitor for Monitoring an Integrated Circuit Chip |
| 04/02/2009 | US20090085229 Audio power amplifier package |
| 04/02/2009 | US20090084942 Light receiving circuit |
| 04/02/2009 | DE10303055B4 FET-Verstärker mit Temperatur-Kompensationsschaltung FET amplifier with temperature compensation circuit |
| 04/02/2009 | DE102004058595B4 Treiberschaltung und Verfahren zur Kompensation von Offsetströmen in einer Treiberschaltung Driver circuit and method of compensating for offset currents in a driver circuit |
| 04/02/2009 | DE10119519B4 Demodulator und Sensorvorrichtung Demodulator and sensor device |
| 04/01/2009 | EP2043258A1 A method for signal amplification, a switched mode amplifier system, a base station and a communication network therefor |
| 04/01/2009 | EP2041874A1 Method for processing sensor signals subject to an offset and sensor arrangement designed to carry out the method |
| 04/01/2009 | EP2041868A2 Minimizing switching noise and its effects in auto-zeroed amplifiers |
| 04/01/2009 | EP2041867A2 Amplifier employing interleaved signals for pwm ripple suppression |
| 04/01/2009 | EP2041866A1 Class d audio amplifier |
| 04/01/2009 | EP2041865A1 Controlling switching mode power supply of power amplifier |
| 04/01/2009 | EP1652295A4 Temperature-insensitive bias circuit for high-power amplifiers |
| 04/01/2009 | EP1579571B1 Phase corrected miller compensation of chopper and nested chopper amplifiers |
| 04/01/2009 | CN201215949Y Terminal stage six path amplifier used in power amplifier of base station system |
| 04/01/2009 | CN201215589Y Multi-path low noise charge sensitive amplifier circuit system for deep space detection |
| 04/01/2009 | CN101401300A Amplification stage |
| 04/01/2009 | CN101400009A 麦克风电路 Microphone circuit |
| 04/01/2009 | CN101399559A Sound signal processing device |
| 04/01/2009 | CN101399546A D/A conversion unit and circuit |
| 04/01/2009 | CN101399522A Multi-input operational amplifier circuit, digital/analog converter using same, and driver for display device using same |
| 04/01/2009 | CN101399521A Apparatus and method for supplying power to an inductive load |
| 04/01/2009 | CN100474764C Variable gain amplifier system and method for providing the same |
| 04/01/2009 | CN100474763C Power amplifier clipping circuit for minimized output of distortion |
| 04/01/2009 | CN100474762C Power amplifying device for communication system |
| 04/01/2009 | CN100474759C Circuit and method for providing an auto-off and/or auto-on capability for an audio device |
| 04/01/2009 | CN100474387C Analog buffer and method for driving the same, and display device having the same, |
| 04/01/2009 | CN100473996C Apparatus for detecting linear index of power amplifier |
| 03/31/2009 | US7512422 RF generator with commutation inductor |
| 03/31/2009 | US7512389 Active inductors using bipolar silicon transistors |
| 03/31/2009 | US7512387 Method and control system for controlling the output power of an RF amplifier system |
| 03/31/2009 | US7512386 Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
| 03/31/2009 | US7512189 Lower complexity layered modulation signal processor |
| 03/31/2009 | US7511586 Noise generator |
| 03/31/2009 | US7511578 Stacked RF power amplifier |
| 03/31/2009 | US7511577 DC coupled microwave amplifier with adjustable offsets |
| 03/31/2009 | US7511576 High frequency power amplifying circuit and high frequency electronic component using the same |
| 03/31/2009 | US7511575 High-frequency power amplifier |
| 03/31/2009 | US7511573 Input/output signals preserver circuit of amplification circuits |
| 03/31/2009 | US7511565 Integrated circuit apparatus and method of compensating a current |
| 03/31/2009 | US7511538 Data input buffer in semiconductor device |
| 03/26/2009 | WO2009037995A1 High output power amplifier, wireless transmitter, wireless transmitting and receiving device, and high output power amplifier mounting method |
| 03/26/2009 | WO2009037762A1 Current mirror circuit |
| 03/26/2009 | WO2009036802A1 Integrated receiving circuit and method for radiofrequency and high speed signals |
| 03/26/2009 | WO2009009494A3 Switchable balanced amplifier |
| 03/26/2009 | WO2005018088A3 Low power consumption adaptive power amplifier |
| 03/26/2009 | US20090079524 Multi-band tunable resonant circuit |
| 03/26/2009 | US20090079505 Ground skimming output stage |
| 03/26/2009 | US20090079503 Overload recovery circuit for folded cascode amplifiers |
| 03/26/2009 | US20090079502 Differential circuit providing a function to cancel input offset voltage |
| 03/26/2009 | US20090079501 Programmable gain circuit and amplification circuit |
| 03/26/2009 | US20090079500 Analog variable gain amplifier with improved dynamic range characteristics |
| 03/26/2009 | US20090079499 Differential Low Noise Amplifier (LNA) With Common Mode Feedback And Gain Control |
| 03/25/2009 | EP2040375A1 Power amplifier module and method of generating a drain voltage for a power amplifier |
| 03/25/2009 | EP2039000A1 Device for amplifying a broadband rf signal |
| 03/25/2009 | EP2038999A2 Method and apparatus for providing adaptive supply voltage control of a power amplifier |
| 03/25/2009 | EP1683269B1 Electronically programmable multimode circuit |
| 03/25/2009 | CN201213254Y Transmission power detection circuit and mobile communication terminal |
| 03/25/2009 | CN101395794A Electronic circuit with compensation of intrinsic offset of differential pairs |
| 03/25/2009 | CN101395793A Hybrid feedback controlled oscillation modulator and switching power amplifier system |
| 03/25/2009 | CN101394680A Special integrated circuit for multi-channel audio amplification |
| 03/25/2009 | CN101394166A Triangle wave generating circuit, pulse width modulation circuit and audio power amplifying circuit |
| 03/25/2009 | CN101394154A Automatic gain dual channel audio pre-amplifier |
| 03/25/2009 | CN101394153A Class D amplifier circuit |
| 03/25/2009 | CN101394152A Radio frequency power amplifier circuit |
| 03/25/2009 | CN100472960C Controllable RF broadband amplifier with a constant input impedance |
| 03/25/2009 | CN100472959C Differential amplifier, digital-to-analog converter and display apparatus |
| 03/25/2009 | CN100472958C Linear amplifier |
| 03/25/2009 | CN100472957C Operational amplifier with increased common mode input range |
| 03/25/2009 | CN100472956C Voltage generation circuit |
| 03/25/2009 | CN100472955C Power amplifier |
| 03/25/2009 | CN100472954C Amplifier circuit |
| 03/25/2009 | CN100472953C Switchable amplifier circuit having reduced shutdown current |
| 03/25/2009 | CN100472951C Multi-band lookup table type predistorter |
| 03/25/2009 | CN100472946C Digital power amplifier adapted for low-voltage carrier communication |
| 03/25/2009 | CN100472945C User unit of bias power amplifier and method |
| 03/25/2009 | CN100472944C Multistage amplifier and method for improving power efficiency of the multistage amplifier |
| 03/25/2009 | CN100472943C Method of preventing power amplifier from leakage after power drop and power amplifier |
| 03/24/2009 | US7509113 Monolithic optical autocompensation read-out circuit for precise reflection measurements of distances |
| 03/24/2009 | US7509105 Radio frequency excitation arrangement including a limiting circuit |
| 03/24/2009 | US7509100 Antenna interface unit |
| 03/24/2009 | US7509059 Optical receiver and data communication apparatus comprising same |
| 03/24/2009 | US7508885 Digitally convertible radio |
| 03/24/2009 | US7508427 Apparatus and method for amplifying analog signal and analog preprocessing circuits and image pick-up circuits |
| 03/24/2009 | US7508269 Stabilization circuit and multiband amplification circuit |
| 03/24/2009 | US7508268 Power amplifier and transmission and reception system |
| 03/24/2009 | US7508267 GaN based digital controlled broadband MMIC power amplifier |
| 03/24/2009 | US7508265 Rail-to-rail class-AB operational amplifier |
| 03/24/2009 | US7508264 DC-couples RF multi-stage amplifier |
| 03/24/2009 | US7508263 Digital amplifying apparatus with noise reduction |
| 03/24/2009 | US7508261 Systems of miniaturized compatible radio frequency wireless devices |