| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 04/17/2002 | CN1345479A Non-linear distortion generator for both second and third order distortion |
| 04/17/2002 | CN1345478A Non linear distortion generator |
| 04/17/2002 | CN1345125A 自适应预失真发射机 Adaptive predistortion transmitter |
| 04/17/2002 | CN1345090A Side-feeding radio-frequency amplifier |
| 04/17/2002 | CN1083172C Linear power amplifying device and method |
| 04/16/2002 | US6374092 Efficient multimode power amplifier |
| 04/16/2002 | US6373340 High-efficiency audio power amplifier |
| 04/16/2002 | US6373339 Active bias network circuit for radio frequency amplifier |
| 04/16/2002 | US6373336 Method of attenuating zero crossing distortion and noise in an amplifier, an amplifier and uses of the method and the amplifier |
| 04/16/2002 | US6373335 Integrated audio amplifier |
| 04/16/2002 | US6373332 Biquad notch filter |
| 04/16/2002 | US6373331 Method and apparatus for reducing transistor amplifier hysteresis |
| 04/16/2002 | US6373329 Bias circuit of a bipolar transistor for high frequency power amplification |
| 04/16/2002 | US6373320 Circuit configuration for operating point stabilization of a transistor |
| 04/16/2002 | US6373236 Temperature compensated power detector |
| 04/11/2002 | WO2002029971A1 Configurable power amplifier and bias control |
| 04/11/2002 | WO2002029970A2 Variable bias control for switch mode rf amplifier |
| 04/11/2002 | WO2002029969A2 Power control of switched-mode power amplifiers with one or more stages |
| 04/11/2002 | WO2002029909A1 Universal temperature compensation application specific integrated circuit |
| 04/11/2002 | WO2002029823A2 Compact ultra-low noise high-bandwidth pixel amplifier for single-photon readout of photodetectors |
| 04/11/2002 | WO2001065706A3 Device for linearising a high-frequency amplifier |
| 04/11/2002 | WO2001058012A3 High-efficiency power modulators |
| 04/11/2002 | WO2001058009A3 Large signal amplifier gain compensation circuit |
| 04/11/2002 | US20020042253 Method for clipping a wideband radio signal and corresponding transmitter |
| 04/11/2002 | US20020041675 Amplifier arrangement |
| 04/11/2002 | US20020041212 Amplifier with suppression of harmonics |
| 04/11/2002 | US20020041210 Linear amplifier arrangement |
| 04/11/2002 | US20020041209 Distortion compensation apparatus |
| 04/11/2002 | US20020041208 Signal distortion compensating apparatus and method |
| 04/11/2002 | US20020041205 Amplifier device with frequency-response-compensating amplifier reactance, and use of the amplifier device |
| 04/10/2002 | EP1195913A1 Amplifier arrangement |
| 04/10/2002 | EP1195893A2 Radio transmitter distortion reducing techniques |
| 04/10/2002 | EP1195892A1 Method and corresponding transmitter for predistorting a wideband radio signal to avoid clipping |
| 04/10/2002 | EP1195891A2 High order multipath compensated operational amplifier with reduced input referred offset |
| 04/10/2002 | EP1195890A2 High-output amplifier |
| 04/10/2002 | EP1195006A1 Reducing distortion of signals |
| 04/10/2002 | EP1195005A1 Device and method for predistorting a transmission signal to be transmitted via a nonlinear transmission path |
| 04/10/2002 | EP1195004A2 Voltage limiting bias circuit for reduction of hot electron degradation effects in mos cascode circuits |
| 04/10/2002 | EP1195003A2 Dynamic bias boosting circuit for a power amplifier |
| 04/10/2002 | EP1088390B1 Circuit and methods for compensating for imperfections in amplification chains in a linc or other amplification system |
| 04/10/2002 | EP1000464B1 Measuring method and device for measuring the distortion of a high frequency power amplifier and correction method and device for the automatic correction of a high frequency power amplifier |
| 04/10/2002 | CN1344479A High efficiency audio frequency transmission channel |
| 04/09/2002 | US6370066 Differential output circuit |
| 04/09/2002 | US6369743 Differential amplifier, comparator, and A/D converter |
| 04/09/2002 | US6369657 Bias network for high efficiency RF linear power amplifier |
| 04/09/2002 | US6369656 Bias network for high efficiency RF linear power amplifier |
| 04/09/2002 | US6369655 Feedback circuit and amplifier and mixer comprising the same |
| 04/09/2002 | US6369654 Semiconductor device |
| 04/09/2002 | US6369653 Apparatus and methods for improved control of quiescent state of output transistors in a class AB amplifier |
| 04/09/2002 | US6369651 Bidirectional direct current power conversion circuits and methods |
| 04/09/2002 | US6369649 Transmission power amplification method and apparatus |
| 04/09/2002 | US6369648 Linear traveling wave tube amplifier utilizing input drive limiter for optimization |
| 04/09/2002 | US6369646 Leakage current compensation circuit |
| 04/09/2002 | US6369638 Power drive circuit |
| 04/04/2002 | WO2002027922A1 Bootstrapped dual-gate class e amplifier circuit |
| 04/04/2002 | WO2002027921A1 Method and circuit for distortion compensation and output control |
| 04/04/2002 | WO2002027920A1 Cascode bootstrapped analog power amplifier circuit |
| 04/04/2002 | WO2001097102A3 Method for automatically releasing and placing an order |
| 04/04/2002 | WO2001089081A3 Radio frequency feedback amplifier circuits |
| 04/04/2002 | US20020039891 System and method for dynamically varying operational parameters of an amplifier |
| 04/04/2002 | US20020039048 Feedforward type linearizer |
| 04/04/2002 | US20020039047 Power amplifier with gain change compensation |
| 04/04/2002 | DE10045720A1 Differential line driver circuit has feedback resistances between each output of differential amplifier and corresponding and opposing inputs |
| 04/04/2002 | DE10044452A1 Verstärkerschaltung Amplifier circuit |
| 04/03/2002 | EP1193866A1 Predistortion type distortion compensation amplifier |
| 04/03/2002 | EP1193865A2 Distortion compensation apparatus and distortion compensation method |
| 04/03/2002 | EP1193864A2 Distortion compensating device and method for compensating distortion |
| 04/03/2002 | EP1193863A2 Amplifier circuit |
| 04/03/2002 | EP1193862A2 Distortion-compensation amplifier device |
| 04/03/2002 | EP1193861A2 Feedforward amplifier |
| 04/03/2002 | EP1193860A2 Feedforward type linearizer |
| 04/03/2002 | EP1192711A1 Biasing circuit for v gs? drift and thermal compensation of a power device |
| 04/03/2002 | EP1192710A1 Method and apparatus for linearizing an amplifier |
| 04/03/2002 | CN1343394A Portable radio transceiver |
| 04/03/2002 | CN1343387A Closed loop calibration for amplitude reconstruction amplifier |
| 04/03/2002 | CN1343040A Dynamicaly synchronous voltage-biased power amplifier |
| 04/03/2002 | CN1343039A Power amplifier without cross-over distortion |
| 04/02/2002 | US6366177 High-efficiency power modulators |
| 04/02/2002 | US6366172 Semiconductor amplifier circuit and system |
| 04/02/2002 | US6366171 Single-to-differential low noise amplifier |
| 04/02/2002 | US6366169 Fast rail-to-rail class AB output stage having stable output bias current and linear performance |
| 04/02/2002 | US6366168 Efficient ground noise and common-mode suppression network |
| 04/02/2002 | US6366166 Double pass band amplifier circuit and a radio frequency reception head |
| 04/02/2002 | US6366165 Amplifier with stabilization means |
| 04/02/2002 | US6366162 Multi-impedance input stage |
| 04/02/2002 | US6366074 Unidirectionality in electronic circuits through feedback |
| 04/02/2002 | CA2284333C Nested feed forward distortion reduction system |
| 03/28/2002 | WO2002025809A2 Switching power amplifier |
| 03/28/2002 | WO2001091282A3 Rf power amplifier and methods for improving the efficiency thereof |
| 03/28/2002 | WO2001052405A3 Method and device for the linearization of a high-frequency high-capacity amplifier |
| 03/28/2002 | US20020036892 Amplifier |
| 03/28/2002 | US20020036543 High-output amplifier |
| 03/28/2002 | US20020036540 Linear transconductance amplifier |
| 03/28/2002 | US20020036519 Circuits with dynamic biasing |
| 03/28/2002 | DE10119383A1 Hochfrequenz-Halbleitervorrichtung High-frequency semiconductor device |
| 03/27/2002 | EP1191707A1 Power amplifier sharing in a wireless communication system with transmit diversity |
| 03/27/2002 | EP1191685A2 Distortion compensation apparatus |
| 03/27/2002 | EP1191684A1 System and method for producing an amplified signal using a pilot signal with different frequencies across a spectrum |
| 03/27/2002 | EP1191683A2 High frequency power amplifier module and wireless communication apparatus |
| 03/27/2002 | EP1190482A1 Method for designing integrated amplifier circuits with reduced noise |