| 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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| 01/10/2013 | US20130009710 Rf amplifier module, integrated circuit device, wireless communication unit and method therefor |
| 01/10/2013 | US20130009706 Electronic device and method for an amplifier with resistive feedback |
| 01/10/2013 | US20130009702 Pre-Distortion for a Radio Frequency Power Amplifier |
| 01/10/2013 | US20130009701 Power Amplifier Pre-Distortion |
| 01/09/2013 | EP2544366A1 Transmitter module and phased array antenna device |
| 01/09/2013 | EP2544344A1 Triple mode charge-pump. |
| 01/09/2013 | EP2543141A1 Operational amplifier having improved slew rate |
| 01/09/2013 | EP2543139A1 Reducing pulse error distortion |
| 01/09/2013 | EP2543138A1 Planar audio amplifier output inductor with current sense |
| 01/09/2013 | EP2543136A1 Current-voltage converter having a current reflector, input stage of an amplifier and corresponding amplifier |
| 01/09/2013 | CN202663361U Anti-static high-precision low-drafting dual operational amplifier |
| 01/09/2013 | CN202663360U High-speed phase splitting circuit with band spreading function |
| 01/09/2013 | CN202663359U Signal detecting and amplifying circuit |
| 01/09/2013 | CN202663358U Operational amplifier circuit for achieving zero starting-up noise |
| 01/09/2013 | CN102870494A High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications |
| 01/09/2013 | CN102868377A Total 3G (Third Generation Telecommunication) CMOS (Complementary Metal-Oxide-Semiconductor Transistor) differential low-noise amplifier based on controllable active inductor |
| 01/09/2013 | CN102868376A Operational amplifier with low power consumption |
| 01/09/2013 | CN102868375A Operational amplifier |
| 01/09/2013 | CN102868374A Multi-input operational amplifier and compensation method for output voltage of same |
| 01/09/2013 | CN102868372A Method and device for controlling linearity of low noise amplifier |
| 01/09/2013 | CN102868371A Digital pre-distortion verification system and method of radio frequency power amplifier |
| 01/09/2013 | CN102868370A Low-noise amplifier with grapheme transistor |
| 01/09/2013 | CN102868369A Radio frequency automatic gain control amplifier |
| 01/09/2013 | CN102868368A Double-frequency synchronous power amplifier based on T-type network and coupling line and design method thereof |
| 01/09/2013 | CN102122919B Self-correcting low-noise amplifier for off-chip discrete device |
| 01/09/2013 | CN101765968B Semiconductor device |
| 01/08/2013 | US8352086 Combined motion sensor for use in feedback control systems for vibration isolation |
| 01/08/2013 | CA2557334C Digital predistortion system and method for high efficiency transmitters |
| 01/03/2013 | WO2013003821A1 Amplifier with high power supply noise rejection |
| 01/03/2013 | WO2013001882A1 Switching circuit |
| 01/03/2013 | WO2013001711A1 High-frequency power amplifier |
| 01/03/2013 | WO2013001561A1 Feedforward amplifier, feedback amplifier, and wide-band amplifier |
| 01/03/2013 | WO2013001059A2 Doherty amplifier with optimised efficiency |
| 01/03/2013 | WO2013000451A2 Method and device for protecting a high-frequency power amplifier against a termination fault |
| 01/03/2013 | WO2012125279A3 Enhanced doherty amplifier |
| 01/03/2013 | US20130005283 Multi-Dimensional Volterra Series Transmitter Linearization |
| 01/03/2013 | US20130002349 Bypass Power Amplifier For Improving Efficiency At Low Power |
| 01/03/2013 | US20130002348 Amplifier with improved noise reduction |
| 01/03/2013 | DE102011079613A1 Doherty-Verstärker mit Wirkungsgradoptimierung Doherty Amplifier with High Efficiency |
| 01/02/2013 | EP2541781A1 Rf transmitter architecture and method therefor |
| 01/02/2013 | EP2541765A1 Low-noise microphone pre-amplifier with active load element |
| 01/02/2013 | EP2541764A1 System and method for estimating and correcting phase shift in a wireless communication device |
| 01/02/2013 | EP2541763A1 Bias circuit, lna, lnb, receiver for communication, transmitter for communication, and sensor system |
| 01/02/2013 | EP2541762A1 Power amplifier device and power amplifier circuit |
| 01/02/2013 | EP2541761A1 Doherty power amplifier apparatus and power amplification method |
| 01/02/2013 | EP2541760A1 Amplifying device, signal processing device, wireless communication device, connector mounting structure, and coaxial connector |
| 01/02/2013 | EP2541759A1 Doherty power amplifier and implementation method therefor |
| 01/02/2013 | CN202652151U Novel full-balanced vacuum tube high fidelity power amplifier |
| 01/02/2013 | CN202652149U Over-temperature protection circuit of radio-frequency power amplifier |
| 01/02/2013 | CN202652148U Power amplifier gain temperature compensation circuit |
| 01/02/2013 | CN202652147U Operational amplifying device with adjustable gain |
| 01/02/2013 | CN102859868A Digital amplifier |
| 01/02/2013 | CN102859867A Power amplifier with low noise figure and voltage variable gain |
| 01/02/2013 | CN102857451A Transmitting device and distortion compensation method used therein |
| 01/02/2013 | CN102857178A Power amplifier state detection circuit |
| 01/02/2013 | CN102857177A Control and protection circuit for solid-state microwave power amplifier |
| 01/02/2013 | CN102857176A Class D power amplifier modulator for digital audio frequencies |
| 01/02/2013 | CN102098009B Output match circuit of radio frequency (RF) power amplifier and design method thereof |
| 01/02/2013 | CN102075469B Estimation method for signal delay time of digital pre-distortion system |
| 01/02/2013 | CN102025327B Amplifier apparatus and predistortion control method |
| 01/02/2013 | CN101926088B Power amplification device and communication device |
| 01/02/2013 | CN101895259B Predistorter, predistortion method and predistortion system |
| 01/02/2013 | CN101807888B Class d amplifier |
| 01/02/2013 | CN101764582B Systems and methods for self-mixing adaptive bias circuit for power amplifier |
| 01/02/2013 | CN101459411B Class-D amplifier |
| 01/02/2013 | CN101399559B 声音信号处理装置 Audio signal processing means |
| 01/01/2013 | US8346497 Method for testing semiconductor film, semiconductor device and manufacturing method thereof |
| 01/01/2013 | US8344808 Non-linear capacitance compensation |
| 01/01/2013 | US8344800 Repeating system and method for cancellation of feedback interference signal with pre-distortion function |
| 01/01/2013 | US8344798 Correlated-double-sampling switched-capacitor gain stages, systems implementing the gain stages, and methods of their operation |
| 01/01/2013 | US8344797 Systems and methods for offset cancellation method for DC-coupled audio drivers |
| 12/27/2012 | WO2012178138A1 Low-voltage power-efficient envelope tracker |
| 12/27/2012 | WO2012176578A1 Power supply device for high-frequency power amplification circuit, and high-frequency power amplification circuit |
| 12/27/2012 | WO2012175709A1 Envelope tracking system for mimo |
| 12/27/2012 | WO2012175484A1 Electronic radio system for power amplification with protection in terms of standing wave rate and associated method of protection |
| 12/27/2012 | WO2012175106A1 Power amplifier based on doherty power amplifier |
| 12/27/2012 | WO2012135070A3 Frequency-desensitizer for broadband predistortion linearizers |
| 12/27/2012 | US20120326792 Systematic intermodulation distortion calibration for a differential lna |
| 12/27/2012 | US20120326790 Amplifier device with reiterable error correction scheme with balanced negative feedback |
| 12/27/2012 | US20120326779 Amplifier circuit and method for conditioning an output current signal of a detector element |
| 12/27/2012 | US20120326778 Closed loop bias control |
| 12/27/2012 | DE102011106234A1 Verfahren und Vorrichtung zum Schutz eines Hochfrequenz-Leistungsverstärkers gegen Fehlabschluss Method and apparatus for protecting a high-frequency power amplifier against false statements |
| 12/26/2012 | EP2538557A1 Doherty power amplifier and implementation method therefor |
| 12/26/2012 | EP2538555A1 Control of a loudspeaker output |
| 12/26/2012 | EP2538554A1 Amplification device and wireless transmission device provided with same, and gain adjusting method for amplification device |
| 12/26/2012 | EP2538553A1 Apparatus and method for mitigating impairments of a transmit signal |
| 12/26/2012 | EP2538552A1 Power amplifier device and power amplifier circuit |
| 12/26/2012 | EP2538551A1 Power amplifier device and power amplifier circuit |
| 12/26/2012 | EP2538550A1 Doherty power amplifier device and power amplification method |
| 12/26/2012 | EP2538549A1 Doherty power amplifier and implementation method therefor |
| 12/26/2012 | EP2538548A1 Method and device for controlling peak amplifier, and doherty power amplifier |
| 12/26/2012 | CN202634368U Intelligent section-type amplifying circuit |
| 12/26/2012 | CN202634367U Logarithmic amplifier with temperature compensation function |
| 12/26/2012 | CN102844981A 放大器电路和无线通信装置 The amplifier circuit and the wireless communication device |
| 12/26/2012 | CN102843108A Efficient linear radio frequency power amplifying device and method |
| 12/26/2012 | CN102843106A Overcurrent protection method for D type power amplification chips |
| 12/26/2012 | CN102843105A System for amplifying signals generated by a signal-generation unit of a satellite |
| 12/26/2012 | CN102843104A Envelope extraction with reduced bandwidth for power modulation |
| 12/26/2012 | CN102843103A Bias circuit |
| 12/26/2012 | CN102843102A Phase-locked amplifying circuit of monolithic integrated MEMS (Micro Electro Mechanical Systems) capacitive sensor |