| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 12/15/2009 | US7633346 Transconductance compensating bias circuit and amplifier |
| 12/15/2009 | US7633345 Amplifier and the method thereof |
| 12/15/2009 | US7633343 Fully differential amplifier |
| 12/15/2009 | US7633342 RF variable gain amplifier |
| 12/15/2009 | US7633341 Wideband circuits and methods |
| 12/15/2009 | US7633340 Apparatus and method for determining the voltage level of an input signal |
| 12/15/2009 | US7633339 Differential amplifier |
| 12/15/2009 | US7633336 Audio amplifier and methods of generating audio signals |
| 12/15/2009 | CA2487817C Satellite twta on-line non-linearity measurement |
| 12/10/2009 | WO2009149291A2 Coupled cavity traveling wave tube |
| 12/10/2009 | WO2009147379A1 Switching power amplifier |
| 12/10/2009 | US20090305647 Communication transceiver having a three-line balun with power amplifier bias |
| 12/10/2009 | US20090302950 Single input dual output voltage power supply and method therefor |
| 12/10/2009 | US20090302949 Bias circuit and amplifier using the same |
| 12/10/2009 | US20090302948 Post amplifier with selectable gain |
| 12/10/2009 | US20090302947 Semiconductor device |
| 12/10/2009 | US20090302946 VARIABLE GAIN AMPLIFIER HAVING LINEAR-IN-dB GAIN CHARACTERISTIC |
| 12/10/2009 | US20090302945 Linearizing technique for power amplifiers |
| 12/10/2009 | US20090302944 Noise-shaped blocker-reject amplifier |
| 12/10/2009 | US20090302943 Class d amplifier |
| 12/10/2009 | US20090302942 D-class amplifier |
| 12/10/2009 | US20090302938 Low delay corrector |
| 12/10/2009 | US20090302937 Amplifier using sigma-delta modulation and method for adjusting errors of the amplifier thereof |
| 12/10/2009 | US20090302895 Constant output common mode voltage of a pre-amplifier circuit |
| 12/10/2009 | DE102004031428B4 Schalter,-Chopper-stabilisierter Verstärker, Komparator und Verfahren Switch, -Chopper-stabilized amplifier, comparator and methods |
| 12/09/2009 | EP2131492A1 Rf amplification device |
| 12/09/2009 | EP2131490A1 Distortion correction control apparatus and distortion correction control method |
| 12/09/2009 | EP2130297A1 Frequency selective amplifier with wide-band impedance and noise matching |
| 12/09/2009 | EP2130296A1 Linearization of rf power amplifiers using an adaptive subband predistorter |
| 12/09/2009 | EP1652296B1 Absorptive microwave single pole single throw switch |
| 12/09/2009 | CN201360242Y Millimeter-wave single-chip integrated power amplifier |
| 12/09/2009 | CN201360241Y Aeronautical data link 600W broadband linear power amplifier |
| 12/09/2009 | CN201360240Y 2.4 GHz bidirectional 1 Watt linear power controller (LPC) |
| 12/09/2009 | CN101601184A Power voltage forming device and polar modulation transmission device |
| 12/09/2009 | CN101599765A Analog-to-digital conversion devices and analog-to-digital conversion stages thereof |
| 12/09/2009 | CN101599759A Increased sensitivity and reduced offset variation in high data rate hssi receiver |
| 12/09/2009 | CN101599746A H bridge |
| 12/09/2009 | CN101599745A Driving amplifier circuit |
| 12/09/2009 | CN101599744A Time division duplex (TDD) mode high-power bilateral amplifier |
| 12/09/2009 | CN101599743A Baran impedance converter for radio frequency pull-push power amplifier |
| 12/09/2009 | CN101599742A Amplifier and offset regulating circuit |
| 12/09/2009 | CN101599741A Frequency compensated operational amplifier |
| 12/09/2009 | CN101599715A Dynamic bipolar drive power supply for piezoelectric ceramics and implementation method |
| 12/09/2009 | CN101599252A Display driving circuit |
| 12/09/2009 | CN101598952A Current generator |
| 12/09/2009 | CN101598629A Photometric property detection device of portable rapid large-screen display |
| 12/09/2009 | CN100568713C Compensated operational amplification circuit and related method |
| 12/09/2009 | CN100568712C High speed rail to rail phase splitter for providing a symmetrical differential output signal having low skew |
| 12/09/2009 | CN100568711C Class d amplifier and infrared data receiving apparatus using the same |
| 12/09/2009 | CN100568710C Power amplifying apparatus, power combining system and delay measuring method for power combining system |
| 12/08/2009 | US7629853 Amplifying apparatus and bias stabilization circuit |
| 12/08/2009 | US7629852 Circuits and methods for implementing transformer-coupled amplifiers at millimeter wave frequencies |
| 12/08/2009 | US7629849 Driving amplifier circuit with digital control |
| 12/08/2009 | US7629848 Operational amplifier with extended common-mode input range |
| 12/08/2009 | US7629847 Opposing currents differential amplifier |
| 12/08/2009 | US7629846 Source follower circuit and semiconductor apparatus |
| 12/08/2009 | US7629845 Amplifier and system utilizing the same |
| 12/08/2009 | US7629844 Device, system, and method of semi-Doherty outphasing amplification |
| 12/08/2009 | US7629842 Class D audio amplifier |
| 12/08/2009 | US7629841 Sigma-delta modulator with feedback for power amplifiers |
| 12/08/2009 | US7629840 Digital pulse width modulated feedback system for a switching amplifier and method therefor |
| 12/03/2009 | WO2009146133A2 High-voltage impulse amplifier |
| 12/03/2009 | WO2009145957A1 Compensating for non-linear capacitance effects in a power amplifier |
| 12/03/2009 | WO2009145273A1 Transimpedance amplifier, regulated type transimpedance amplifier, and optical receiver |
| 12/03/2009 | WO2009114731A3 Multi-level power amplification system |
| 12/03/2009 | US20090296950 Signal processing system having a plurality of high-voltage functional blocks integrated into interface module and method thereof |
| 12/03/2009 | US20090295487 Power efficient multistage amplifier and design method |
| 12/03/2009 | US20090295486 Operational amplifier having adjustable bias current and related source driver of display thereof |
| 12/03/2009 | US20090295484 Low Bias Current Amplifier |
| 12/03/2009 | US20090295483 RF Power Amplifiers with Linearization |
| 12/03/2009 | US20090295482 Driving amplifier circuit with digital control |
| 12/03/2009 | US20090295481 High speed differential to single ended converting circuit |
| 12/03/2009 | US20090295480 Amplifier circuit |
| 12/03/2009 | US20090295479 Amplifier and offset regulating circuit |
| 12/03/2009 | US20090295478 Amplifier using impedance circuit for canceling cutoff |
| 12/03/2009 | US20090295477 Ahuja compensation circuit for operational amplifier |
| 12/03/2009 | US20090295476 Fully differential dc offset device circuit |
| 12/03/2009 | US20090295474 Device with Shared Power Amplifiers, For Use in a Wireless Telecommunications System |
| 12/03/2009 | US20090295473 Power Amplifier Architectures |
| 12/03/2009 | DE102008030576B3 High efficient precision amplifier e.g. XTR300, for controlling load during industrial driver application, has switches connecting positive or negative supply rail of linear amplifier stage with supply unit based on signal polarity |
| 12/02/2009 | EP2127073A1 Chopper-stabilized instrumentation amplifier for wireless telemetry |
| 12/02/2009 | EP2127072A1 Chopper-stabilized instrumentation amplifier |
| 12/02/2009 | EP2127071A2 Error correction system for a class-d power stage |
| 12/02/2009 | EP2127070A2 A data processing system for clipping correction |
| 12/02/2009 | EP2127069A1 Linear transconductor for rf communications |
| 12/02/2009 | CN201355808Y 高带宽线性隔离模块 High bandwidth linear isolation module |
| 12/02/2009 | CN101595638A Bias circuit and semiconductor integrated circuit using the same |
| 12/02/2009 | CN101595637A Phase and power calibration in active antennas |
| 12/02/2009 | CN101595636A RF amplification device |
| 12/02/2009 | CN101595635A Elimination of dummy detector on optical detectors using input common mode feedback |
| 12/02/2009 | CN101594337A Device for generating pre-distorted signals |
| 12/02/2009 | CN101594326A Pre-distorted radio frequency amplifier |
| 12/02/2009 | CN101594325A Linearization method for pre-distorted radio frequency amplifier |
| 12/02/2009 | CN101594324A Method for generating pre-distorted signals |
| 12/02/2009 | CN101594139A Buffer based on source electrode follower |
| 12/02/2009 | CN101594127A Full solid-sate radio frequency power supply |
| 12/02/2009 | CN101594118A Operational amplifier having adjustable bias current and related source driver of display thereof |
| 12/02/2009 | CN101594117A High-efficiency ultralinear DFFA mobile digital television and mobile broadband communication power amplifier |
| 12/02/2009 | CN101592973A Regulating device and audio amplifier |
| 12/02/2009 | CN100566169C Differential cascode current mode driver |