| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 12/13/2012 | US20120313704 Differential amplifier stage with integrated offset cancellation circuit |
| 12/13/2012 | US20120313703 Restoring output common-mode of amplifier via capacitive coupling |
| 12/13/2012 | DE102007040063B4 Aktive Brückenschaltung für bipolare Stromerregung um periodische Magnetfelder zu erzeugen To generate active bridge circuit for bipolar current excitation to periodic magnetic fields |
| 12/12/2012 | EP2533421A1 A method for amplification of a signal using a multi-level modulator, and an amplifying device therefor |
| 12/12/2012 | EP2532090A1 Method and arrangement for driving a microphone |
| 12/12/2012 | CN202602597U High fidelity transistor audio power amplifying equipment |
| 12/12/2012 | CN202602596U High frequency small signal amplification circuit applied in OLED/TFT-LCD electrical performance detection |
| 12/12/2012 | CN202602595U Charge amplifier |
| 12/12/2012 | CN202602594U Charge amplifier |
| 12/12/2012 | CN102823128A Digital amplifier |
| 12/12/2012 | CN102820862A Method and apparatus for increasing effective resolution of sensor |
| 12/12/2012 | CN102820861A Power-saving enhanced slew rate system of operational amplifier output stage |
| 12/12/2012 | CN102820860A Hall voltage sensor, amplifier circuit, testing circuit and testing method |
| 12/12/2012 | CN102820859A 低共模驱动器 Low common mode drive |
| 12/12/2012 | CN102820858A High-frequency signal amplifying circuit for scanning tunnel microscope |
| 12/12/2012 | CN102820857A Transimpedance amplifier with broad band and high gain, design method and amplifier chip |
| 12/12/2012 | CN102820856A RF power amplifier and RF power module using the same |
| 12/12/2012 | CN101873104B RF power amplifier using different supply voltages and operation method thereof |
| 12/12/2012 | CN101867347B Power amplifier circuit with reconfigurable frequency band in multi-band wireless mobile communication system |
| 12/12/2012 | CN101842977B Automatic power source configuration |
| 12/12/2012 | CN101834576B Multimode tunable CMOS (Complementary Metal Oxide Semiconductor) differential low noise amplifier |
| 12/12/2012 | CN101714853B Bipolar soft-switching PWM power amplifier |
| 12/12/2012 | CN101404484B 半导体电路 Semiconductor circuit |
| 12/12/2012 | CN101385237B Method and apparatus for implementing soft switching in a class d amplifier |
| 12/12/2012 | CN101329870B Audio encoder and related electronic device |
| 12/11/2012 | US8332024 Low-power analog architecture for brain-machine interfaces |
| 12/11/2012 | US8330842 Amplifier control device and recording non-transitory medium |
| 12/11/2012 | US8330546 Systems and methods for saturation correction in a power control loop |
| 12/11/2012 | US8330545 RF power amplifier |
| 12/11/2012 | US8330544 Power amplification circuit having transformer |
| 12/11/2012 | US8330543 Differential amplifier |
| 12/11/2012 | US8330542 Power amplifier |
| 12/11/2012 | US8330541 Multilevel class-D amplifier |
| 12/11/2012 | US8330539 Dynamic switchable mode dual bridge power amplifier |
| 12/11/2012 | US8330538 Self-oscillating audio amplifier and method for restraining the improved self-oscillating audio amplifier |
| 12/11/2012 | US8330500 Comparator |
| 12/11/2012 | US8330199 Semiconductor device having resistors with a biased substrate voltage |
| 12/06/2012 | WO2012166281A1 Method and apparatus of switched amplification having improved efficiency |
| 12/06/2012 | WO2012165285A1 Driver integrated circuit |
| 12/06/2012 | WO2012164951A1 Transmitter and signal processing method |
| 12/06/2012 | WO2012164905A1 Vswr measurement circuit, wireless communication device, vswr measurement method and recording medium in which vswr measurement program is stored |
| 12/06/2012 | WO2012164794A1 Low-noise amplifier with through mode |
| 12/06/2012 | WO2012163875A1 Envelope path processing for envelope tracking amplification stage |
| 12/06/2012 | WO2012163874A1 Time alignment for an amplification stage |
| 12/06/2012 | WO2012163672A1 Signal processing |
| 12/06/2012 | WO2012138781A3 Shaper design in cmos for high dynamic range |
| 12/06/2012 | WO2012020144A3 Switch mode power supply for envelope tracking |
| 12/06/2012 | US20120309327 Rf amplifier with open circuit input off-state |
| 12/06/2012 | US20120306838 Semiconductor device and electronic apparatus using the same |
| 12/06/2012 | US20120306579 Power amplifier |
| 12/06/2012 | US20120306578 Rf amplifier with open circuit output off-state |
| 12/06/2012 | US20120306577 Open-Loop Transimpedance Amplifier for Infrared Diodes |
| 12/06/2012 | US20120306576 Method and system for improving linearity of an amplifier by means of im3 cancelation |
| 12/06/2012 | US20120306575 Switched-capacitor dc blocking amplifier |
| 12/06/2012 | US20120306574 Wide bandwidth class c amplifier with common-mode feedback |
| 12/06/2012 | US20120305783 Photomultiplier tube with integrated fast analog-to-digital conversion for event derandomizer and digital time stamping |
| 12/06/2012 | US20120305753 Circuit for setting the voltage potential at the output of a pin photoreceiver and photoreceiver assembly |
| 12/06/2012 | DE102011050761A1 Audio signal amplifier device for use in e.g. mobile telephone, has user interface with pressure-sensitive pushbutton for receiving user commands, and output device comprising LEDS for output of optical signals |
| 12/05/2012 | EP2530834A1 RF amplifier with open circuit input off-state |
| 12/05/2012 | EP2530833A2 RF amplifier with open circuit output off-state |
| 12/05/2012 | EP2530832A1 Method and device for digitatl pre-distortion precessing |
| 12/05/2012 | EP2530831A1 Audio amplifier circuit and method of operation thereof |
| 12/05/2012 | EP2529482A1 Differential amplifier having a rail-to-rail input voltage range |
| 12/05/2012 | EP2529481A1 Instrumentation amplifier calibration method, system and apparatus |
| 12/05/2012 | CN202586881U Radio-frequency power amplifier hot-backup system |
| 12/05/2012 | CN202586880U Public broadcasting preamplifier |
| 12/05/2012 | CN202586879U A 50w high power amplifier in an LTE system base station |
| 12/05/2012 | CN202586876U Difference frequency eliminating circuit, pulse width modulation signal generation circuit and amplifier circuit |
| 12/05/2012 | CN102812635A Discrete time operational transconductance amplifier for switched capacitor circuits |
| 12/05/2012 | CN102812634A Pop-up Noise Reduction In A Device |
| 12/05/2012 | CN102812633A Parallel Correction Amplifier |
| 12/05/2012 | CN102811027A D-type audio power amplifier and audio signal processing method thereof |
| 12/05/2012 | CN102811026A Class D audio power amplifier for noise suppression and audio signal processing method thereof |
| 12/05/2012 | CN102811025A Driving circuit of class D audio power amplifier and driving signal processing method of driving circuit |
| 12/05/2012 | CN102811024A Transmission line structure of low-loss power amplifier |
| 12/05/2012 | CN102811023A Power amplifier |
| 12/05/2012 | CN101529719B A commutating auto zero amplifier |
| 12/05/2012 | CN101299596B Adaptive biasing input stage and amplifiers including the same |
| 12/04/2012 | US8324973 Low output impedance RF amplifier |
| 12/04/2012 | US8324972 Front-end circuit of low supply-voltage memory interface receiver |
| 12/04/2012 | US8324971 Self-adjusting gate bias network for field effect transistors |
| 12/04/2012 | US8324970 Circuit and method for radio frequency amplifier |
| 12/04/2012 | US8324968 Amplifier circuit, signal processor circuit, and semiconductor integrated circuit device |
| 12/04/2012 | US8324966 Apparatus and methods for electronic amplification |
| 12/04/2012 | US8324965 Final stage three-way power combining amplifying circuit applied to power amplifier of mobile communications base station system |
| 12/04/2012 | US8324956 Flexible low noise, high linearity, high frequency, low power, fully differential mixer and class AB post-mixer amplifier system for SDR applications |
| 12/04/2012 | US8324555 Nanoelectronic differential amplifiers and related circuits implemented on a segment of a graphene nanoribbon |
| 12/04/2012 | US8324553 Chip-stacked image sensor having image signal sensing cell, where the image signal sensing cell has photodiodes and charge transmission transistors commonly connected to charge transmission pads |
| 11/29/2012 | WO2012162449A1 Multi-autonomous electronic amplifier |
| 11/29/2012 | WO2012161406A1 Differential amplifier |
| 11/29/2012 | WO2012160810A1 High-efficiency active circuit |
| 11/29/2012 | WO2012160755A1 High-frequency amplifier circuit |
| 11/29/2012 | WO2012160230A1 Low-mismatch and low-consumption transimpedance gain circuit for temporally differentiating photo-sensing systems in dynamic vision sensors |
| 11/29/2012 | WO2012160021A1 Power supply arrangement for single ended class d amplifier |
| 11/29/2012 | WO2012159420A1 Gain control device and method for transimpedance amplifier of lithium niobate modulator |
| 11/29/2012 | US20120302179 Method and apparatus for programmable envelope shaping circuit based on piecewise linear interpolation |
| 11/29/2012 | US20120299661 Pa bias power supply undershoot compensation |
| 11/29/2012 | US20120299660 Selecting pa bias levels of rf pa circuitry during a multislot burst |
| 11/29/2012 | US20120299659 Efficiency improvement of doherty power amplifier using supply switching and digitally controlled gate bias modulation of peaking amplifier |
| 11/29/2012 | US20120299658 High efficiency, high frequency amplifiers |