| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 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 | US8385877 Fully integrated compact cross-coupled low noise amplifier |
| 02/26/2013 | US8385016 Asymmetric correction circuit |
| 02/26/2013 | US8384484 Power amplifier with improved bandwidth |
| 02/26/2013 | US8384483 High efficiency power amplifier power architecture |
| 02/26/2013 | US8384482 Wideband Doherty amplifier circuit with impedance combiner |
| 02/26/2013 | US8384481 Signal amplification device and signal amplification method |
| 02/26/2013 | US8384480 Differential amplifier |
| 02/26/2013 | US8384479 Partial cascode in combination with full cascode operational transconductance amplifier |
| 02/26/2013 | US8384478 Versatile audio power amplifier |
| 02/26/2013 | US8384475 Composite amplifier, a radio terminal and a method for improving the efficiency of the composite amplifier |
| 02/21/2013 | WO2013025953A1 Low noise amplifiers with combined outputs |
| 02/21/2013 | US20130044248 Integrated Circuit and Sensor for Imaging |
| 02/21/2013 | US20130044017 Pipeline a/d converter and a/d converting method |
| 02/21/2013 | US20130043955 Signal amplification circuits for receiving/transmitting signals according to input signal |
| 02/21/2013 | US20130043954 Monolithic microwave integrated circuit (mmic) including air bridge coupler |
| 02/21/2013 | US20130043953 Methods, circuits and systems for regulating the output power of a transmission system |
| 02/21/2013 | US20130043952 Circuit and Method for Adjusting an Offset Output Current for an Input Current Amplifier |
| 02/21/2013 | US20130043950 Common mode input control for switch capacitor amplifier in pipeline analog-to-digital converter |
| 02/21/2013 | US20130043949 Method of forming a circuit having a voltage reference and structure therefor |
| 02/21/2013 | US20130043948 Semiconductor device for signal amplification |
| 02/21/2013 | US20130043947 Output circuit |
| 02/21/2013 | US20130043946 Low noise amplifiers with combined outputs |
| 02/21/2013 | US20130043944 Cascaded converged power amplifier |
| 02/21/2013 | US20130043942 Sensing devices and display devices |
| 02/21/2013 | US20130043934 Analog floating gate charge loss compensation circuitry and method |
| 02/21/2013 | US20130043877 Operational amplifier with different power supply voltages |
| 02/20/2013 | EP2560280A2 Public address amplifier which is lightweight due to the supply of class-d sampling frequency to opt |
| 02/20/2013 | EP2560279A1 Wireless apparatus and distortion compensation method used on time division duplex system |
| 02/20/2013 | EP2560252A1 Optical amplifier |
| 02/20/2013 | EP2559160A1 Power-amplifier arrangement |
| 02/20/2013 | CN202750052U Bridge signal isolation amplifier |
| 02/20/2013 | CN202750051U Operational transconductance amplifier circuit |
| 02/20/2013 | CN202750050U Audio amplifier |
| 02/20/2013 | CN202750049U Weak wireless signal amplifier of time division duplexing system |
| 02/20/2013 | CN102939716A Multi-band wideband power amplifier digital predistortion system |
| 02/20/2013 | CN102938639A High-power amplifying circuit |
| 02/20/2013 | CN102938637A Ultra wide band low noise amplifier circuit |
| 02/20/2013 | CN102937455A Mean noise filtering method without phase delay |
| 02/20/2013 | CN102122926B Three-phase operational amplifier |
| 02/19/2013 | US8380157 Up-conversion mixer with signal processing |
| 02/19/2013 | US8380147 Power amplifier circuit with means for tuning wave shape of ASK RF signal envelope, and method for implementing the power amplifier circuit |
| 02/19/2013 | US8378750 Class AB amplifiers |
| 02/19/2013 | US8378749 Systems and methods for adaptive bias circuits for a power amplifier |
| 02/19/2013 | US8378748 Amplifier |
| 02/19/2013 | US8378747 Differential amplifier circuit, operational amplifier including difference amplifier circuit, and voltage regulator circuit |
| 02/19/2013 | US8378746 Voltage-mode line driving circuit having adaptive impedance matching |
| 02/19/2013 | US8378745 Current sensing |
| 02/19/2013 | US8378743 Reducing pulse error distortion |
| 02/19/2013 | US8376486 Liquid jet apparatus having a modulation period modification circuit |
| 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 | WO2013021028A2 Asynchronous switch mode supply |
| 02/14/2013 | WO2013020768A1 Low-noise amplifier, receiver, method and computer program |
| 02/14/2013 | WO2013020265A1 Output stage acceleration circuit of transistor audio power amplifier |
| 02/14/2013 | WO2013020231A1 Method and apparatus for reducing distortion in class d amplifier |
| 02/14/2013 | US20130038396 Radio frequency amplifier in communication system and method of controlling the same |
| 02/14/2013 | US20130038395 Power amplifying circuit |
| 02/14/2013 | US20130038394 Operational amplifier |
| 02/14/2013 | US20130038393 Amplifier circuit, integrating circuit, and light-detection device |
| 02/14/2013 | US20130038392 Power supply method and apparatus |
| 02/14/2013 | US20130038391 Method and apparatus for reducing distortion in class d amplifier |
| 02/14/2013 | US20130038390 Atomic layer deposition encapsulation for power amplifiers in rf circuits |
| 02/14/2013 | US20130038388 Auto-zero amplifier and sensor module using same |
| 02/14/2013 | US20130038341 Contactor health monitor circuit and method |
| 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 | EP2557685A1 System and method for preserving input impedance of a current-mode circuit |
| 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 | CN202737816U Low noise signal detection conversion amplification circuit |
| 02/13/2013 | CN202737815U Circuit capable of carrying out amplification on power of alternating current |
| 02/13/2013 | CN202737814U Self adaptive power amplifying circuit of UHF (ultra high frequency) band wireless digital interphone |
| 02/13/2013 | CN202737813U Multimode power amplifier and corresponding mobile communication equipment |
| 02/13/2013 | CN202737812U Power amplifying device applied to long-term evolution (LTE) system |
| 02/13/2013 | CN102934358A Switching circuit and envelope signal amplifier |
| 02/13/2013 | CN102931933A Proportion-adjustable multiway universal programmable voltage amplification module |
| 02/13/2013 | CN102931932A Complementary bias differential amplifier |
| 02/13/2013 | CN102931931A Anti-sound break circuit for D-class power amplifier chip |
| 02/13/2013 | CN102931930A Alternative-conduction power amplifier |
| 02/13/2013 | CN102931929A 功率放大电路 Power amplifier circuit |
| 02/13/2013 | CN102931928A Low power consumption programmable amplifying circuit |
| 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 | CN102931922A High-stability radio power amplifier monolithic integrated circuit |
| 02/13/2013 | CN102269608B digital signal processing method and circuit of micro-charge particle inductor |
| 02/13/2013 | CN102142819B Radio frequency power amplifier based on transformer |
| 02/13/2013 | CN102064775B Recorder amplifier module |
| 02/13/2013 | CN101807890B RF power amplifier and RF power module using the same |
| 02/13/2013 | CN101675587B Comparator with complementary differential input stages |
| 02/13/2013 | CN101667854B Radio-frequency power composite circuit |
| 02/13/2013 | CN101527546B D-type power amplifier |
| 02/13/2013 | CN101335533B Radio communication apparatus |
| 02/12/2013 | US8373508 Power amplifier |
| 02/12/2013 | US8373506 Amplifier circuit and methods of operation thereof |