| 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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| 08/01/2002 | US20020101287 Current mirror compensation system for power amplifiers |
| 08/01/2002 | US20020101283 RF amplifier |
| 08/01/2002 | US20020101282 Elimination of noise during power supply switching in an audio amplifier circuit |
| 08/01/2002 | US20020101275 Logarithmic amplifier |
| 08/01/2002 | US20020101273 Semiconductor device |
| 08/01/2002 | US20020101269 Spatially redundant and complementary semiconductor device-based, single event transient-resistant linear amplifier circuit architecture |
| 07/31/2002 | EP1227578A2 RF amplifier |
| 07/31/2002 | EP1227577A1 Method and apparatus for compensation of cross modulation effects |
| 07/31/2002 | EP1227576A2 Mosfet well biasing scheme that mitigates body effect |
| 07/31/2002 | EP1226651A1 Improvements relating to eer transmitters |
| 07/31/2002 | EP1226594A1 Electrical circuit arrangement for converting an input voltage |
| 07/31/2002 | CN1361938A Power modulation systems and methods that separately amplify low and high frequency portions of an amplitude waveform |
| 07/31/2002 | CN1361589A Electrical apparatus of shielding plate and emitting device for filtering electric signal at two two side of shielding plate |
| 07/30/2002 | US6427067 Detector driven bias circuit for power transistors |
| 07/30/2002 | US6426744 Display driving apparatus having variable driving ability |
| 07/30/2002 | US6426678 High power amplifier system having low power consumption and high dynamic range |
| 07/30/2002 | US6426677 Linearization bias circuit for BJT amplifiers |
| 07/30/2002 | US6426674 Circuit and method for compensating an offset voltage in an operational amplifier |
| 07/30/2002 | US6426672 Means of selecting low noise performance or low power dissipation in the analog front end of a custom integrated circuit |
| 07/30/2002 | US6426665 Semiconductor device |
| 07/30/2002 | US6426495 Temperature compensating circuit, temperature compensating logarithm conversion circuit and light receiver |
| 07/30/2002 | CA2298317C Microwave power amplifier |
| 07/25/2002 | WO2002058249A2 High efficiency wideband linear wireless power amplifier |
| 07/25/2002 | WO2002058232A1 Circuits and methods for controlling transients during audio device power-up and power-down, and systems using the same |
| 07/25/2002 | WO2002058228A1 Rf circuit with capacitive active impedance |
| 07/25/2002 | WO2002019564A3 Method and apparatus for plurality signal generation |
| 07/25/2002 | WO2001082469A3 Method and apparatus for optimum biasing of cascaded mosfet radio-frequency devices |
| 07/25/2002 | WO2001039366B1 Circuit that operates in a manner substantially complementary to an amplifying device included therein and apparatus incorporating same |
| 07/25/2002 | US20020098808 Circuit configuration for matching an amplifier to a radio-frequency line, and use of the circuit configuration |
| 07/25/2002 | US20020097811 Transmission device and transmission method |
| 07/25/2002 | US20020097097 High-frequency power amplifier |
| 07/25/2002 | US20020097095 Temperature compensation circuit for a power amplifier |
| 07/25/2002 | US20020097094 Mmic power amplifier with wirebond output matching circuit |
| 07/25/2002 | US20020097090 Method and apparatus for error correction of amplifier |
| 07/25/2002 | US20020097089 Predistortion-based amplifier, transmitter and envelope detector |
| 07/25/2002 | US20020097087 Reconfigurable device for amplifying RF signals |
| 07/25/2002 | US20020097086 Dual bridge amplifier |
| 07/25/2002 | DE10102622A1 Circuit for increasing the stability of feedback differential amplifiers in control circuits by use of a compensation circuit for compensation of frequency response and phase shift |
| 07/25/2002 | DE10061589C1 Schaltungsanordnung mit Integriertem Verstärker Circuitry with Integrated Amplifier |
| 07/24/2002 | EP1225691A1 Improved class AB, high speed, input stage with base current compensation for fast settling time |
| 07/24/2002 | EP1225690A2 Transmitter circuits |
| 07/24/2002 | EP1224733A1 Adaptive linearization of power amplifiers |
| 07/24/2002 | EP1224732A1 Compensation circuit and method for a power transistor |
| 07/24/2002 | EP1224731A1 Improved predistortion compensation for a power amplifier |
| 07/24/2002 | EP1119906B1 Method and apparatus for preventing power amplifier saturation |
| 07/24/2002 | EP0806087B1 Method and apparatus for a linear transmitter |
| 07/24/2002 | CN1360758A Cascode signal driver with low harmonic content |
| 07/24/2002 | CN1360753A Power amplifier driver system for wireless handset |
| 07/24/2002 | CN1088287C Linear power amplifier and method for eliminating intermodulation distortion signals |
| 07/23/2002 | US6424226 Two-port with a frequency-dependent network |
| 07/23/2002 | US6424225 Power amplifier circuit for providing constant bias current over a wide temperature range |
| 07/23/2002 | US6424224 Auxiliary circuitry for monolithic microwave integrated circuit |
| 07/23/2002 | US6424223 MMIC power amplifier with wirebond output matching circuit |
| 07/23/2002 | US6424219 Operational amplifier |
| 07/23/2002 | US6424216 Power amplifier system having amplifier failure compensation |
| 07/23/2002 | US6424215 High efficiency closed loop feed forward amplifier |
| 07/23/2002 | US6424214 Strain error compensation amplifier |
| 07/23/2002 | US6424213 Loss reduction using multiple amplifiers identically divided |
| 07/23/2002 | US6424212 Power amplifiers |
| 07/23/2002 | US6424210 Isolator circuit |
| 07/23/2002 | US6424172 Circuit structure for synthesizing time-continual filters |
| 07/18/2002 | WO2002056647A2 Circuit for linearizing electronic devices |
| 07/18/2002 | WO2002056558A2 Active filter circuit with dynamically modifiable internal gain |
| 07/18/2002 | WO2002056470A1 Active filter circuit with dynamically modifiable gain |
| 07/18/2002 | WO2002056462A2 Gain and bandwidth enhancement for rf power amplifier package |
| 07/18/2002 | WO2002056460A2 Apparatus and methods for monitoring and controlling power amplifier linearity using detected fundamental and harmonic components |
| 07/18/2002 | WO2002056458A2 A fully differential, variable-gain amplifier and a multidimensional amplifier arrangement |
| 07/18/2002 | WO2002037672A3 Multiple-voltage supply power amplifier with dynamic headroom control |
| 07/18/2002 | WO2002001709A3 High-frequency amplifier circuit with negative impedance cancellation |
| 07/18/2002 | WO2001075973A3 Combined transistor-capacitor structure in deep sub-micron cmos for power amplifiers |
| 07/18/2002 | US20020094795 High efficiency wideband linear wireless power amplifier |
| 07/18/2002 | US20020094792 Signal processing semiconductor integrated circuit device and wireless communication system |
| 07/18/2002 | US20020094791 Apparatus and methods for monitoring and controlling power amplifier linearity using detected fundamental and harmonic components |
| 07/18/2002 | US20020094091 Circuits and methods for controlling transients during audio device power-up and power-down, and systems using the same |
| 07/18/2002 | US20020093383 Doherty power amplifier with integrated quarter wave transformer/combiner circuit |
| 07/18/2002 | US20020093382 MOSFET well biasing scheme that mitigates body effect |
| 07/18/2002 | US20020093378 Amplifier circuit, radio transmitter, method and use |
| 07/18/2002 | US20020093377 Power amplification circuit and communication device using the same |
| 07/18/2002 | CA2427913A1 Circuit for linearizing electronic devices |
| 07/17/2002 | EP1223671A2 Feedback-type amplifier circuit and driver circuit |
| 07/17/2002 | EP1222693A1 Improved heat dissipation in an amplifier circuit by interleaved configuration of two power transistors |
| 07/17/2002 | CN2501252Y Voice frequency power amplifying circuit |
| 07/17/2002 | CN1359558A 非线性失真发生器 Nonlinear distortion generator |
| 07/17/2002 | CN1359245A Method for amplitude-limited wide-band radio signal and relative transmitter |
| 07/16/2002 | US6420935 Controller-based radio frequency amplifier module and method |
| 07/16/2002 | US6420929 N way cancellation coupler for power amplifier |
| 07/16/2002 | CA2236241C Amplifier with reduced input capacitance |
| 07/11/2002 | WO2002054607A1 Transmitting device |
| 07/11/2002 | WO2002054595A1 Input stage with selectable input impedance |
| 07/11/2002 | WO2002054590A1 Closed loop active cancellation technique (act)-based rf power amplifier linearization architecture |
| 07/11/2002 | WO2002054589A2 Triple class e doherty amplifier topology for high efficiency signal transmitters |
| 07/11/2002 | WO2002054586A1 Cmos radio frequency amplifier with inverter driver |
| 07/11/2002 | WO2002054584A2 Feedforward amplifier |
| 07/11/2002 | WO2002054583A2 Rf power amplifier with distributed bias circuit |
| 07/11/2002 | WO2002054582A1 Amplifier circuit for am broadcasing |
| 07/11/2002 | WO2002054581A2 Class e doherty amplifier topology for high efficiency signal transmitters |
| 07/11/2002 | WO2002039577A3 Linear modulation using a linear and a non-linear amplifier |
| 07/11/2002 | WO2002029909B1 Universal temperature compensation application specific integrated circuit |
| 07/11/2002 | WO2002029823A3 Compact ultra-low noise high-bandwidth pixel amplifier for single-photon readout of photodetectors |
| 07/11/2002 | WO2002014900A3 Video amplifier for a radar receiver |