| 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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| 01/30/2003 | US20030022466 Structure and method for fabricating semiconductor structure and linearized monolithic power amplifier utilizing the formation of a compliant substrate for materials used to form the same |
| 01/30/2003 | US20030020557 Digital signals, radio transmitter circuits and method |
| 01/30/2003 | US20030020555 Switched capacitor circuit |
| 01/30/2003 | US20030020546 Active element bias circuit for RF power transistor input |
| 01/30/2003 | US20030020545 Linear power amplifier |
| 01/30/2003 | US20030020541 Feedforward amplifier and feedforward amplification method |
| 01/30/2003 | US20030020540 Amplifier bias adjustment circuit to maintain high-output third-order intermodulation distortion performance |
| 01/30/2003 | US20030020539 Power amplifier apparatus |
| 01/30/2003 | US20030020538 Method and apparatus for modeling and estimating the characteristics of a power amplifier by retaining even-order terms in estimating characteristics |
| 01/30/2003 | US20030020519 Input buffer for analog-to-digital convertor |
| 01/30/2003 | US20030020445 EMC immune low drop regulator |
| 01/30/2003 | US20030020090 Structure including both compound semiconductor devices and silicon devices for optimal performance and function and method for fabricating the structure |
| 01/30/2003 | DE10132800C1 Rauscharme Verstärkerschaltung Low-noise amplifier circuit |
| 01/29/2003 | EP1280273A2 A wideband digital predistortion linearizer for nonlinear amplifiers |
| 01/29/2003 | EP1280272A1 Method for the linearization of the power stage of a signal transmitter, corresponding system and receiver |
| 01/29/2003 | EP1280271A2 Feedforward amplification apparatus and method |
| 01/29/2003 | EP1280270A2 Base-station amplifier device |
| 01/29/2003 | EP1280033A1 EMC immune low drop regulator |
| 01/29/2003 | CN1394386A Voltage level translation circuits |
| 01/29/2003 | CN1394385A Voltage level translation circuits |
| 01/29/2003 | CN1100397C Power interface circuit for TDMA transmitter |
| 01/29/2003 | CN1100382C Reactive current trimmed power amplifier and trimming method thereof |
| 01/28/2003 | US6512428 Device for the simultaneous reception/transmission of signals comprising a low-noise amplifier |
| 01/28/2003 | US6512419 Method and apparatus to tune and calibrate an on-chip oscillator in a wireless transceiver chip |
| 01/28/2003 | US6512418 Amplifier |
| 01/28/2003 | US6512417 Linear amplifier arrangement |
| 01/28/2003 | US6512412 Temperature compensated reference voltage circuit |
| 01/23/2003 | WO2003007568A1 Predistortion linearization device and method |
| 01/23/2003 | WO2003007472A1 Multistage amplifier with local error correction |
| 01/23/2003 | WO2002013371A3 Driver circuit for subscriber terminals |
| 01/23/2003 | WO2002009277A3 Negative feedback gain control for common electrode transistor |
| 01/23/2003 | US20030017813 Parallel operation system of transmission amplifier |
| 01/23/2003 | US20030016086 Active cascode amplifier with an amplitude limiter |
| 01/23/2003 | US20030016083 Linear power amplifier |
| 01/23/2003 | US20030016082 High frequency power amplifier circuit device |
| 01/23/2003 | US20030016081 Control method and circuit for feedforward distortion compensation amplifier |
| 01/23/2003 | US20030016060 Comparator circuit and method |
| 01/22/2003 | EP1277276A1 Electronic circuit for providing a desired common mode voltage to a differential output of an amplifier stage |
| 01/22/2003 | EP1277275A1 Ft-multiplier amplifier with low-power biasing circuit |
| 01/22/2003 | EP1277273A1 Method and transmitting circuit for generating a transmission signal |
| 01/22/2003 | CN2532621Y Key programing digital power amplifier |
| 01/22/2003 | CN2532620Y 数字功率放大器 Digital Power Amplifier |
| 01/22/2003 | CN1393053A Bootstrapped dual-gate class E amplifier circuit |
| 01/22/2003 | CN1393052A Cascode bootstrapped analog power amplifier circuit |
| 01/22/2003 | CN1393036A Combined transistor-capactor structure in deep sub-micro CMOS for power amplifier |
| 01/22/2003 | CN1099755C Microwave amplifier for reducing pulsating noise |
| 01/21/2003 | US6509825 Integrated circuit device having a self-biased, single pin radio frequency signal input |
| 01/21/2003 | US6509797 Amplifier phase reversal suppression |
| 01/21/2003 | US6509796 Variable transconductance variable gain amplifier utilizing a degenerated differential pair |
| 01/21/2003 | US6509793 Switching amplifier resolution enhancement apparatus and methods |
| 01/21/2003 | US6509792 Circuit and method for attenuating or eliminating undesired properties of an operational amplifier |
| 01/21/2003 | US6509789 Circuit for reducing second and third order intermodulation distortion for a broadband RF amplifier |
| 01/21/2003 | US6509641 High-frequency signal amplification device |
| 01/21/2003 | CA2237633C Digital signal processing for linearization of small input signals to a tri-state power switch |
| 01/16/2003 | WO2003005574A2 A communication system and arrangements comprising such a communication system |
| 01/16/2003 | WO2003005572A1 Method and device for switch-on current limiting in push-pull amplifying power stages |
| 01/16/2003 | WO2003005570A1 Audio reproducing device and method, audio amplifier, and integrated circuit for audio amplifier |
| 01/16/2003 | WO2003005569A1 Auxiliary circuitry for monolithic microwave integrated circuit |
| 01/16/2003 | WO2003005568A1 Radio frequency power amplifier for cellular telephones |
| 01/16/2003 | WO2003005566A2 Low-noise amplifying circuit |
| 01/16/2003 | WO2003005565A1 Electronic amplifier circuit |
| 01/16/2003 | WO2003005564A2 Method for adjusting the amplification of a high frequency signal |
| 01/16/2003 | WO2001099274A9 Audio amplifier power and temperature controller having network detecting and associated methods |
| 01/16/2003 | US20030013419 Differential to single-ended converter with large output swing |
| 01/16/2003 | US20030011873 Light amplifier device and optical pickup device employing it |
| 01/16/2003 | US20030011436 Fujitsu limited |
| 01/16/2003 | US20030011434 Radio frequency power amplifier for cellular telephones |
| 01/16/2003 | US20030011431 Linear transconductance amplifier |
| 01/16/2003 | US20030011428 Feedforward amplifier |
| 01/16/2003 | US20030011427 Decorrelated power amplifier linearizers |
| 01/16/2003 | US20030011249 Circuit configuration and method for reducing the 1/f noise of MOSFETs |
| 01/16/2003 | US20030011040 Active feedback circuit for gain linearization |
| 01/15/2003 | EP1276322A1 Satellite receiver and operation method |
| 01/15/2003 | EP1276230A2 Cascode distributed amplifier |
| 01/15/2003 | EP1276227A2 Feedforward amplifier |
| 01/15/2003 | EP1275202A1 Antenna amplifier |
| 01/15/2003 | EP1275200A2 Method and apparatus for dynamic sound optimization |
| 01/15/2003 | EP1275198A2 Concurrent multi-band low noise amplifier architecture |
| 01/15/2003 | EP1181770B1 Broadcast transmission system with distributed correction |
| 01/15/2003 | CN1391724A Power amplifier core |
| 01/15/2003 | CN1391419A Temperature compensation circuit of automatic gain control circuit |
| 01/15/2003 | CN1391371A Distortion reducing circuit |
| 01/15/2003 | CN1391359A High linear balanced amplifier with asymmetric biassed voltages |
| 01/15/2003 | CN1391358A Predistortion circuit for Doherty linear microwave amplifier |
| 01/15/2003 | CN1391341A Method and circuit for control of feedforward distortion compensation amplifier |
| 01/15/2003 | CN1099156C Noiseless amplifier |
| 01/14/2003 | US6507731 Wireless communication apparatus with transmission power controller and method thereof |
| 01/14/2003 | US6507244 Transmitter with a sliding compression point |
| 01/14/2003 | US6507243 Controller-based radio frequency amplifier module and method |
| 01/14/2003 | US6507240 Hybrid audio amplifier |
| 01/14/2003 | US6507233 Method and circuit for compensating VT induced drift in monolithic logarithmic amplifier |
| 01/14/2003 | US6507180 Bandgap reference circuit with reduced output error |
| 01/09/2003 | WO2003003683A2 Method for avoiding interference radiation of am transmitters used in digital transmission |
| 01/09/2003 | WO2003003569A1 Balanced distortion reduction circuit |
| 01/09/2003 | WO2003003566A1 Am transmitter having feed-forward correction to compensate for source impedance |
| 01/09/2003 | WO2003003565A2 A transmitter control circuit |
| 01/09/2003 | WO2003003564A2 Reduced architecture for multibranch feedforward power amplifier linearizers |
| 01/09/2003 | WO2003003563A2 Self-calibrated power amplifier linearizers |
| 01/09/2003 | WO2003003562A2 Decorrelated power amplifier linearizers |
| 01/09/2003 | WO2003003378A1 Eeprom circuit voltage reference circuit and method for providing a low temperature-coefficient voltage reference |