| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 12/19/2002 | US20020193085 Systems and methods for amplification of a communication signal |
| 12/19/2002 | US20020191711 Method of determining parameters of an n-gate |
| 12/19/2002 | US20020191710 Adaptive predistortion device and method using digital receiver |
| 12/19/2002 | US20020190891 Highly integrated single substrate mmw multi-beam sensor |
| 12/19/2002 | US20020190799 Amplification circuit and oscillation circuit having the amplification circuit |
| 12/19/2002 | US20020190793 Operational transconductance amplifier for an output buffer |
| 12/19/2002 | US20020190792 Digital power amplifier |
| 12/19/2002 | US20020190791 High frequency amplifier for amplifying high frequency signals |
| 12/19/2002 | US20020190789 Switching amplifier and signal amplifying method |
| 12/19/2002 | US20020190787 Method and apparatus for calculating the predistortion function from a power amplifier |
| 12/19/2002 | US20020190784 Amplifier |
| 12/18/2002 | EP1267487A1 High frequency amplifier |
| 12/18/2002 | EP1267486A2 Control method and circuit for feedforward distortion compensation amplifier |
| 12/18/2002 | EP1267485A2 Distortion reducing circuit |
| 12/18/2002 | EP1267484A1 Circuit and method for providing a RF signal with pre-distortion |
| 12/18/2002 | EP1267483A2 Asymmetrically biased high linearity balanced amplifier |
| 12/18/2002 | EP1266448A1 A lineariser for a signal handling apparatus |
| 12/18/2002 | EP1192710B1 Method and apparatus for linearizing an amplifier |
| 12/18/2002 | EP1074092B1 Method for neutralising a transmitter tube |
| 12/18/2002 | CN1096742C 半导体器件 Semiconductor devices |
| 12/17/2002 | US6496175 Output circuit |
| 12/17/2002 | US6496074 Cascode bootstrapped analog power amplifier circuit |
| 12/17/2002 | US6496073 Digitally controlled bias circuit for amplifiers |
| 12/17/2002 | US6496069 Cascode circuit capable of contributing a comparatively low intermodulation distortion in the amplified signals |
| 12/17/2002 | US6496067 Class AB voltage current convertor having multiple transconductance stages and its application to power amplifiers |
| 12/17/2002 | US6496065 Linear amplifier using frequency 2nd order intermodulation feed-forwarding method |
| 12/17/2002 | US6496064 Intermodulation product cancellation circuit |
| 12/17/2002 | US6496062 Predistortion system and method using a pilot signal |
| 12/17/2002 | US6496060 Hybridized, high performance PWM amplifier |
| 12/17/2002 | CA2109063C Rf power amplifier with linearization |
| 12/15/2002 | CA2382192A1 High frequency amplifier for amplifying high frequency signals |
| 12/12/2002 | WO2002100019A2 Method for power amplifier to avoid performance degradation, shutdown and damage in case of worst data pattern |
| 12/12/2002 | WO2002099966A1 Switching amplifier having digital correction and method therefor |
| 12/12/2002 | WO2002099964A1 Method and arrangement relating to multicarrier power amplifiers |
| 12/12/2002 | WO2002075922A3 Circuit and method for input side impedance matching of a power amplifier in an electronic device |
| 12/12/2002 | US20020188429 Fuzzy logic estimator for minimizing signal measurement inaccuracy effects in a signal processing system |
| 12/12/2002 | US20020187766 Circuit for compensating temperature of automatic gain control circuit |
| 12/12/2002 | US20020187764 Amplification circuit with improved linearity |
| 12/12/2002 | US20020187761 Device and method for compensating for nonlinearity of power amplifier with redistortion in if band |
| 12/12/2002 | US20020186783 Amplifier predistortion system and method |
| 12/12/2002 | US20020186573 Alternating current soft start circuit |
| 12/12/2002 | US20020186119 Electronic equipment |
| 12/12/2002 | US20020186084 Bias circuit for use with low-voltage power supply |
| 12/12/2002 | US20020186082 Predistortion type linearizer controlled by two control voltages |
| 12/12/2002 | US20020186080 Totem pole rf amplifiers with phase and amplitude correction |
| 12/12/2002 | US20020186079 Asymmetrically biased high linearity balanced amplifier |
| 12/12/2002 | US20020186078 Application of the doherty amplifier as a predistortion circuit for linearizing microwave amplifiers |
| 12/12/2002 | US20020186076 High frequency power amplifier |
| 12/12/2002 | US20020186075 DC offset self-calibration system for a digital switching amplifier |
| 12/11/2002 | EP1265356A1 Amplifier with low input impedance |
| 12/11/2002 | EP1265355A2 Overcurrent protection in a car stereo system |
| 12/11/2002 | EP1265354A1 Amplifier circuit |
| 12/11/2002 | EP1265353A2 HEMT-HBT Doherty microwave amplifier |
| 12/11/2002 | EP1265217A2 Operational amplifier circuit, driving circuit and driving method |
| 12/11/2002 | EP1265216A2 Operational amplifier circuit, driving circuit and driving method |
| 12/11/2002 | EP1264458A1 Digital i/q modulator having a predistorsion |
| 12/11/2002 | EP1264410A2 Device for linearising a high-frequency amplifier |
| 12/11/2002 | EP1264396A1 Circuit arrangement for adjusting the operating point of a high-frequency transistor and an amplifier circuit |
| 12/11/2002 | EP1264395A2 Improved method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
| 12/11/2002 | EP0908004B1 Device and method for compensating phase distortion |
| 12/11/2002 | EP0850509B1 Linearized digital automatic gain control |
| 12/11/2002 | CN2525732Y 数字功率放大器 Digital Power Amplifier |
| 12/11/2002 | CN1384997A Amplifier stabilisation |
| 12/11/2002 | CN1384996A Adaptive linearization of power amplifiers |
| 12/11/2002 | CN1384995A Multistage amplifier |
| 12/11/2002 | CN1384980A Circuit for protection of differential amplifier inputs against electrostatic discharge |
| 12/11/2002 | CN1384602A Adaptive RF digital pre-distortion linearization method and circuit |
| 12/10/2002 | US6493543 Multichannel amplification system using mask detection |
| 12/10/2002 | US6493400 Harmonic cancellation system |
| 12/10/2002 | US6492875 Self-boosting circuit for a power amplifier |
| 12/10/2002 | US6492874 Active bias circuit |
| 12/10/2002 | US6492872 High frequency power amplifying module and wireless communication apparatus |
| 12/10/2002 | US6492870 Class AB, high speed, input stage with base current compensation for fast settling time |
| 12/10/2002 | US6492869 Linear amplifier and radio communication apparatus using the same |
| 12/10/2002 | US6492867 Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
| 12/10/2002 | US6492845 Low voltage current sense amplifier circuit |
| 12/08/2002 | CA2389489A1 Application of the doherty amplifier as a predistortion circuit for linearizing microwave amplifiers |
| 12/08/2002 | CA2389477A1 Hemt-hbt doherty microwave amplifier |
| 12/08/2002 | CA2389456A1 Asymmetrically biased high linearity balanced amplifier |
| 12/08/2002 | CA2349916A1 Adaptive predistortion device and method using digital receiver |
| 12/05/2002 | WO2002098008A2 Non-linear transistor circuits with thermal stability |
| 12/05/2002 | WO2002097972A2 Power amplifier control |
| 12/05/2002 | WO2002097971A1 Bias current control in transistors |
| 12/05/2002 | WO2002097970A1 A transmitter with a sliding compression point |
| 12/05/2002 | WO2002097969A2 Power amplifier embedded cell bias detection, methods of detecting bias in power amplifiers and systems utilizing embedded cell bias detection |
| 12/05/2002 | WO2002097968A2 Method and apparatus for compensation of second order distortion |
| 12/05/2002 | WO2002097938A2 Electronic isolator |
| 12/05/2002 | WO2002096540A1 Model for spectral and chromatographic data |
| 12/05/2002 | WO2002073795A3 High efficciency switching amplifiers |
| 12/05/2002 | WO2002056558A9 Active filter circuit with dynamically modifiable internal gain |
| 12/05/2002 | WO2002031972A3 Amplification circuit with improved linearity |
| 12/05/2002 | US20020183035 Non-linear transistor circuits with thermal stability |
| 12/05/2002 | US20020183024 Radio frequency circuit and communication system |
| 12/05/2002 | US20020183023 Method and circuitry for high power amplifiers with voltage conversion to avoid performance degradation, system shutdown and permanent damage in case of worst case data pattern |
| 12/05/2002 | US20020183019 High-level modulation method and apparatus |
| 12/05/2002 | US20020181612 Monolithic, software-definable circuit including a power amplifier and method for use therewith |
| 12/05/2002 | US20020181604 Layered modulation for digital signals |
| 12/05/2002 | US20020181180 Over-current protection circuit and method |
| 12/05/2002 | US20020180720 Operational amplifier circuit, driving circuit and driving method |
| 12/05/2002 | US20020180717 Operational amplifier circuit, driving circuit, and driving method |