| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 02/28/2013 | WO2013028395A1 Apparatus and method for operating a transmitter |
| 02/28/2013 | WO2013027538A1 Transmitter |
| 02/28/2013 | WO2013027498A1 Distortion-compensating amplification device and distortion-compensating amplification method |
| 02/28/2013 | WO2012142101A3 Radio frequency (rf) amplifier utilizing a predistortion circuit and related techniques |
| 02/28/2013 | US20130049872 Power amplifier system |
| 02/28/2013 | US20130049867 Class of power amplifiers for improved back off operation |
| 02/28/2013 | US20130049861 Modulator and an amplifier using the same |
| 02/28/2013 | US20130049859 Saturation protection of a regulated voltage |
| 02/28/2013 | US20130049858 Envelope tracking system for mimo |
| 02/27/2013 | EP2562930A1 Class D amplifier and control method |
| 02/27/2013 | EP2562929A1 High gain amplifier method using low-valued reistances |
| 02/27/2013 | EP2561612A1 Power amplifier with low noise figure and voltage variable gain |
| 02/27/2013 | EP2561611A1 Pseudo-envelope following power management system |
| 02/27/2013 | CN202759416U GSM (global system for mobile communication) power amplifying device |
| 02/27/2013 | CN202759415U Detachable antenna amplifier for car |
| 02/27/2013 | CN202759414U Sealed audio amplifier |
| 02/27/2013 | CN102948071A Modulation agnostic digital hybrid mode power amplifier system and method |
| 02/27/2013 | CN102946234A High-precision amplifying circuit for detecting yarn tension |
| 02/27/2013 | CN102946232A Layout design method and layout structure for reducing direct-current offset voltage of cascade amplification circuit |
| 02/27/2013 | CN102946231A Low-noise amplifier and manufacturing method for same |
| 02/27/2013 | CN102946230A Ultra-wide band low-noise single-ended input and differential output amplifier |
| 02/27/2013 | CN102944755A Rechargeable and portable signal amplifier |
| 02/27/2013 | CN102195566B Static noise cancelling circuit of audio amplifier |
| 02/27/2013 | CN102176658B Symmetrically-folded MOS (metal oxide semiconductor) transistor cascade amplifier with broadband and low-power consumption |
| 02/27/2013 | CN102158181B Low-power consumption bandwidth multiplication chopping stabilized operational amplifier based on MOS (metal oxide semiconductor) device |
| 02/27/2013 | CN102136826B ACL control and temperature compensation method and device |
| 02/27/2013 | CN101917169B High-bandwidth low-power consumption frequency-compensation three-stage operational amplifier |
| 02/27/2013 | CN101917168B High switching rate transconductance amplifier for active power factor corrector |
| 02/27/2013 | CN101814898B Radio-frequency amplifier and digital pre-distortion system |
| 02/27/2013 | CN101729028B Amplifier device |
| 02/27/2013 | CN101677229B Power amplifier, method for controlling power amplifier, and wireless communication apparatus |
| 02/26/2013 | US8384477 Distortion compensating apparatus, amplifying apparatus, transmitting apparatus, and distortion compensating method |
| 02/26/2013 | US8384476 Adaptive digital predistortion of complex modulated waveform using peak and RMS voltage feedback from the output of a power amplifier |
| 02/26/2013 | US8384474 Bi-directional and adjustable current source |
| 02/26/2013 | US8384473 Voltage output device having an operational amplifier |
| 02/21/2013 | WO2013025623A2 Class e amplifier overload detection and prevention |
| 02/21/2013 | WO2013000451A3 Method and device for protecting a high-frequency power amplifier against a termination fault |
| 02/21/2013 | US20130043952 Circuit and Method for Adjusting an Offset Output Current for an Input Current Amplifier |
| 02/21/2013 | US20130043945 System and Method for High-Frequency Amplifier |
| 02/21/2013 | US20130043943 Gain stage with dc offset compensation and method thereof |
| 02/20/2013 | EP2560279A1 Wireless apparatus and distortion compensation method used on time division duplex system |
| 02/20/2013 | EP2560278A1 Power Generating System |
| 02/20/2013 | EP2559160A1 Power-amplifier arrangement |
| 02/20/2013 | CN202750049U Weak wireless signal amplifier of time division duplexing system |
| 02/20/2013 | CN202750048U Self-excited oscillation automatic protection circuit configuration for Power amplifier |
| 02/20/2013 | CN202750047U 温度补偿系统 Temperature Compensation System |
| 02/20/2013 | CN202750046U Automobile antenna amplifier with quick connection device |
| 02/20/2013 | CN102939716A Multi-band wideband power amplifier digital predistortion system |
| 02/20/2013 | CN102938638A Cross coupling modeling method of concurrency multiband nonlinear system and linear device |
| 02/20/2013 | CN102938637A Ultra wide band low noise amplifier circuit |
| 02/20/2013 | CN102938486A Low temperature co-fired ceramic (LTCC) tube casing integrated with coupling electrical bridge |
| 02/20/2013 | CN101515784B Amplifier, attenuating module and method for attenuating radio frequency signal |
| 02/19/2013 | US8380290 Implantable devices for dynamic monitoring of physiological and biological properties of tumors |
| 02/19/2013 | US8378746 Voltage-mode line driving circuit having adaptive impedance matching |
| 02/19/2013 | US8378744 Multi-mode power amplifier |
| 02/19/2013 | US8376286 Foreign track current suppression system and method |
| 02/14/2013 | WO2013022241A2 Radio frequency amplifier in communication system and method of controlling the same |
| 02/14/2013 | WO2013021961A1 High-frequency power amplification device and electronic apparatus having communication function equipped with same high-frequency power amplification device |
| 02/14/2013 | WO2013021748A1 Power amplifier and power transmission apparatus |
| 02/14/2013 | WO2013020768A1 Low-noise amplifier, receiver, method and computer program |
| 02/14/2013 | WO2013020231A1 Method and apparatus for reducing distortion in class d amplifier |
| 02/14/2013 | US20130040587 Distortion compensation device, distortion compensation method, and radio transmitter |
| 02/14/2013 | US20130038396 Radio frequency amplifier in communication system and method of controlling the same |
| 02/14/2013 | US20130038389 Systems and Methods of RF Power Transmission, Modulation, and Amplification, Including Embodiments for Compensating for Waveform Distortion |
| 02/13/2013 | EP2557697A1 Method and device for controlling power amplification |
| 02/13/2013 | EP2557687A1 Low-noise amplifier, receiver, method and computer program |
| 02/13/2013 | EP2557686A2 System and method for improving power efficiency of a transmitter |
| 02/13/2013 | EP2557684A1 Minimum feedback radio architecture with digitally configurable adaptive linearization |
| 02/13/2013 | EP2557683A1 Minimum feedback radio architecture with digitally configurable adaptive linearization |
| 02/13/2013 | EP2557682A1 Amplifier circuit and wireless communication device |
| 02/13/2013 | EP2557681A1 Voltage driving apparatus for power amplifier, power amplifying system, power supply device for radio frequency power amplifier and communication device |
| 02/13/2013 | CN202737816U Low noise signal detection conversion amplification circuit |
| 02/13/2013 | CN102934358A Switching circuit and envelope signal amplifier |
| 02/13/2013 | CN102931935A Low-cost program-controlled amplification circuit |
| 02/13/2013 | CN102931931A Anti-sound break circuit for D-class power amplifier chip |
| 02/13/2013 | CN102931927A Impedance matching method for power amplification module |
| 02/13/2013 | CN102931926A Optimization method for low-noise amplifier |
| 02/13/2013 | CN102931925A Low temperature coefficient logarithmic amplifier based on complementary metal-oxide-semiconductor (CMOS) technology |
| 02/13/2013 | CN102931924A Power supply structure of multi-stage amplifier |
| 02/13/2013 | CN102931923A Self-heating elimination low-noise preamplifier |
| 02/13/2013 | CN102931922A High-stability radio power amplifier monolithic integrated circuit |
| 02/13/2013 | CN102931921A High-performance broadband bootstrap excitation tube core structure |
| 02/13/2013 | CN101834566B Low noise amplifier and over distortion method based on same |
| 02/13/2013 | CN101807890B RF power amplifier and RF power module using the same |
| 02/13/2013 | CN101527546B D-type power amplifier |
| 02/13/2013 | CN101335533B Radio communication apparatus |
| 02/12/2013 | US8373509 Wide band LNA with noise canceling |
| 02/12/2013 | US8373503 Third order intermodulation cancellation for RF transconductors |
| 02/07/2013 | WO2013019999A1 Power based feedback for improved power amplifier (pa) efficiency |
| 02/07/2013 | WO2013017819A1 Solid state audio power amplifier |
| 02/07/2013 | WO2013017407A1 A high efficiency power amplifier |
| 02/07/2013 | US20130033324 Amplifier and associated receiver |
| 02/07/2013 | US20130033321 High efficiency power amplifier |
| 02/07/2013 | US20130033317 Pre-distortion for fast power transient waveforms |
| 02/07/2013 | US20130033314 Power based feedback for improved power amplifier (pa) efficiency |
| 02/07/2013 | DE102012211690A1 Leistungsverstärker Power amplifier |
| 02/06/2013 | EP2555423A1 Digital amplifier |
| 02/06/2013 | EP2553808A1 Variable class characteristic amplifier |
| 02/06/2013 | CN202721650U Guitar earphone amplifier |
| 02/06/2013 | CN102918766A Transimpedance amplifier, integrated circuit, and system |