| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 08/27/2002 | US6441687 Amplifier bias voltage generating circuit and method |
| 08/27/2002 | CA2189550C Phase linear class e amplifier for a satellite communication system |
| 08/22/2002 | WO2002065652A1 Method for energy-saving operation of a mobile radio telephone device and mobile radio telephone device |
| 08/22/2002 | WO2002065636A1 Hybrid audio amplifier |
| 08/22/2002 | WO2002065635A1 Low noise, electric field sensor |
| 08/22/2002 | WO2002065634A2 Power amplifier system having frequency and amplifier failure compensation |
| 08/22/2002 | WO2002019545A8 System for closed loop power control using a linear or a non-linear power amplifier |
| 08/22/2002 | US20020115416 Calibration of in-phase and quadrature transmit branches of a transmitter |
| 08/22/2002 | US20020113656 Amplifier |
| 08/22/2002 | US20020113655 Divided-voltage fet power amplifiers |
| 08/22/2002 | US20020113652 Amplifier circuit |
| 08/22/2002 | US20020113650 Amplifier and mixer with improved linearity |
| 08/22/2002 | US20020113648 Feedforward amplifier |
| 08/22/2002 | US20020113647 Power linearizer of a CDMA system and method thereof |
| 08/22/2002 | US20020113645 Photodetector preamplifier circuit having a rotating input stage |
| 08/22/2002 | US20020113642 Reference voltage circuit |
| 08/22/2002 | US20020113627 Input buffer circuit capable of suppressing fluctuation in output signal and reducing power consumption |
| 08/22/2002 | US20020113605 Rf circuit with capacitive active impedance |
| 08/22/2002 | US20020112453 Inserting apparatus and method with controlled, master cycle speed-dependent actuator operations |
| 08/22/2002 | CA2437921A1 Hybrid audio amplifier |
| 08/22/2002 | CA2432888A1 Power amplifier system having frequency and amplifier failure compensation |
| 08/21/2002 | EP1232565A2 High efficiency power amplifier |
| 08/21/2002 | EP1232564A1 Power amplifiers |
| 08/21/2002 | CN1365537A Amplified circuit |
| 08/21/2002 | CN1365185A Feedback type amplifying circuit and driving circuit |
| 08/20/2002 | US6438364 Radio frequency device with fast charging of an input capacitance |
| 08/20/2002 | US6438360 Amplifier system with load control to produce an amplitude envelope |
| 08/20/2002 | US6437649 Microwave amplifier |
| 08/20/2002 | US6437647 Current mirror compensation system for power amplifiers |
| 08/20/2002 | US6437646 Variable gain amplifier circuit and gain control method |
| 08/20/2002 | US6437644 Predistorter |
| 08/20/2002 | US6437641 Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
| 08/20/2002 | US6437634 Semiconductor circuit in which distortion caused by change in ambient temperature is compensated |
| 08/20/2002 | US6437622 Temperature compensated slew rate control circuit |
| 08/20/2002 | US6437612 Inductor-less RF/IF CMOS buffer for 50Ω off-chip load driving |
| 08/20/2002 | US6437606 Method of anomalous offset detection and a corresponding circuit |
| 08/20/2002 | CA2306227C Distributed gain line driver amplifier |
| 08/15/2002 | WO2002063768A1 Circuits with dynamic biasing |
| 08/15/2002 | WO2002063761A2 Photodetector preamplifier circuit having a rotating input stage |
| 08/15/2002 | US20020109549 High frequency power amplifier module, and wireless communications system |
| 08/15/2002 | US20020109548 Power amplifying circuit |
| 08/15/2002 | US20020109546 Fully differential, variable-gain amplifier and a multidimensional amplifier arrangement |
| 08/15/2002 | US20020109545 Low noise, electric field sensor |
| 08/15/2002 | US20020109544 Hybrid audio amplifier |
| 08/15/2002 | US20020109543 Method for reusing resource for designing operational amplifier, layout generating apparatus, and layout generating program |
| 08/14/2002 | EP1231708A2 Self compensating amplifier and driver for broadcast data receiver |
| 08/14/2002 | EP1230734A1 Adaptive dead time control for push-pull switching circuits |
| 08/14/2002 | EP1230730A1 Amplifier with improved, high precision, high speed and low power consumption architecture |
| 08/14/2002 | EP1166437A4 Power efficient line driver |
| 08/14/2002 | DE10140404A1 Anpassungsschaltung und Halbleitervorrichtung hiermit Matching circuit and semiconductor device hereby |
| 08/14/2002 | CN1364336A 放大器电路 Amplifier circuit |
| 08/14/2002 | CN1364006A Power Linear circuits and method for CDMA system |
| 08/13/2002 | US6434243 Power amplifier |
| 08/13/2002 | US6433642 Impedance matched frequency dependent gain compensation network for multi-octave passband equalization |
| 08/13/2002 | US6433641 Power amplifier and communication device including power amplifier |
| 08/13/2002 | US6433639 High frequency power amplifier module and wireless communication system |
| 08/13/2002 | US6433638 Fully balanced transimpedance amplifier for high speed and low voltage applications |
| 08/13/2002 | US6433635 Amplifier |
| 08/13/2002 | US6433634 Electronic circuit for providing a desired common mode voltage to a differential output of an amplifier stage |
| 08/13/2002 | US6433610 Current clamp circuit |
| 08/08/2002 | WO2002061941A1 Audio reproducing apparatus and method |
| 08/08/2002 | WO2002061940A1 Cmos power amplifier with reduced harmonics and improved efficiency |
| 08/08/2002 | WO2002061939A1 Current mirror compensation system for power amplifiers |
| 08/08/2002 | WO2002061938A1 Distortion compensation apparatus |
| 08/08/2002 | WO2002014898A3 Near object detection system |
| 08/08/2002 | US20020105382 Method and apparatus for maintaining stability in a circuit under variable load conditions |
| 08/08/2002 | US20020105381 Process-insensitive, highly-linear constant transconductance circuit |
| 08/08/2002 | US20020105380 CMOS transceiver having an integrated power amplifier |
| 08/08/2002 | US20020105379 Feedforward amplifier |
| 08/08/2002 | US20020105378 Linearisation and modulation device |
| 08/08/2002 | US20020105377 Digital power amplifier |
| 08/08/2002 | US20020105368 Semiconductor device |
| 08/08/2002 | US20020105360 Single-ended differential circuit using complementary devices |
| 08/07/2002 | EP1229644A2 Logarithmic amplifier |
| 08/07/2002 | EP1229642A1 Power amplifier circuit for amplifying RF-Signals |
| 08/07/2002 | EP1229641A1 Self oscillating power amplifier |
| 08/07/2002 | EP1229640A2 Predistortion type distortion compensation apparatus |
| 08/07/2002 | EP1229639A2 Elimination of noise during power supply switching in an audio amplifier circuit |
| 08/07/2002 | EP1058969B1 Receiver input circuit |
| 08/07/2002 | CN1362784A Digital linearization method of high-power amplifier and digital linearization method |
| 08/07/2002 | CN1088940C Gain characteristic compensating circuit |
| 08/06/2002 | US6430402 Power amplifier saturation prevention method, apparatus, and communication system incorporating the same |
| 08/06/2002 | US6429747 System and method for converting from single-ended to differential signals |
| 08/06/2002 | US6429746 System and method for auto-bias of an amplifier |
| 08/06/2002 | US6429745 Semiconductor device |
| 08/06/2002 | US6429741 Circuit for detecting distortion in an amplifier, in particular an audio amplifier |
| 08/06/2002 | US6429740 High power amplifier linearization method using extended saleh model predistortion |
| 08/06/2002 | US6429739 Amplifier with feedback power control loop offset compensation |
| 08/06/2002 | US6429738 Feed forward amplifier |
| 08/06/2002 | US6429736 On-line calibration of linear amplifiers |
| 08/06/2002 | US6429697 Multi-stage, low-offset, fast-recovery, comparator system and method |
| 08/06/2002 | CA2293241C Adaptive biasing in a power amplifier |
| 08/01/2002 | WO2002060088A1 Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier |
| 08/01/2002 | WO2002060051A2 High linearity circuits and methods regarding same |
| 08/01/2002 | WO2002060050A2 Power amplifier system having frequency and amplifier failure compensation |
| 08/01/2002 | WO2002060049A2 Method and apparatus for compensation of cross modulation effects |
| 08/01/2002 | US20020102971 Scheme for maximizing efficiency of power amplifier under power backoff conditions |
| 08/01/2002 | US20020102952 Portable radio transceiver having shared power source for audio and RF amplifiers |
| 08/01/2002 | US20020101938 Predistortion type distortion compensation apparatus |
| 08/01/2002 | US20020101937 Predistortion technique for high power amplifiers |