| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 03/11/2010 | DE102009039980A1 Leistungsverstärker mit einer Ausgangsleistungssteuerung Power amplifier with output power control |
| 03/10/2010 | EP2161858A1 Optical receiver circuit |
| 03/10/2010 | EP2161835A1 System and method for filtering harmonics of a power amplifier |
| 03/10/2010 | EP2161833A1 Gain switching circuit for preamplifier |
| 03/10/2010 | CN201422102Y Vehicle-mounted power amplifier circuit |
| 03/10/2010 | CN101669282A Arithmetic amplifier and pipeline type ad converter |
| 03/10/2010 | CN101667813A Pre-amplifier circuit |
| 03/09/2010 | US7675366 Integrated amplifier circuit |
| 03/09/2010 | US7675365 Systems and methods for power amplifiers with voltage boosting multi-primary transformers |
| 03/09/2010 | US7675364 Circuit and method of establishing DC bias levels in an RF power amplifier |
| 03/09/2010 | US7675363 Differential amplifier circuit and A/D converter |
| 03/09/2010 | US7675362 Switching amplifier |
| 03/09/2010 | US7675361 Class-D amplifier and multi-level output signal generated method thereof |
| 03/09/2010 | US7675351 Frequency output circuit |
| 03/04/2010 | WO2010025027A2 Method and apparatus for adjusting load impedance of a distributed amplifier |
| 03/04/2010 | WO2010024803A1 Tunable nanowire resonant cavity for optical modulation |
| 03/04/2010 | WO2010024746A1 Hybrid class amplifier |
| 03/04/2010 | WO2010022613A1 Method and device for power amplification and base station |
| 03/04/2010 | WO2010006079A3 Method of achieving high selectivity in receiver rf front-ends |
| 03/04/2010 | WO2009151973A3 Power amplifier architectures |
| 03/04/2010 | US20100053470 Active distributed signal splitting apparatus |
| 03/04/2010 | US20100052809 Method and apparatus for adjusting load impedance of a distributed amplifier |
| 03/04/2010 | US20100052794 Method and system for improving efficiency over power control for linear and class ab power amplifiers |
| 03/04/2010 | US20100052793 Resonant operating mode for a transistor |
| 03/04/2010 | US20100052792 Amplifying apparatus, method of output control and control program |
| 03/04/2010 | US20100052791 Amplifier circuit |
| 03/04/2010 | US20100052790 Amplifier circuit |
| 03/04/2010 | US20100052788 Broadband microwave device with switchable gain |
| 03/04/2010 | US20100052787 Limiting amplifiers |
| 03/04/2010 | US20100052786 Automatic gain control apparatus and technique |
| 03/04/2010 | US20100052785 Differential amplifier, sample-and-hold circuit, and amplifier circuit |
| 03/04/2010 | US20100052784 Low noise amplifier |
| 03/04/2010 | US20100052783 Class-d amplifier |
| 03/04/2010 | US20100052779 Doherty amplifier and signal amplification system having the same, method for amplifying signal |
| 03/04/2010 | US20100052641 System and Method for Improving Efficiency of a Power Factor Correction Boost Pre-Regulator |
| 03/04/2010 | US20100051786 Pixel circuit |
| 03/04/2010 | DE102004038851B4 Monolithisch integrierter Leistungsverstärker Monolithic integrated power amplifier |
| 03/03/2010 | EP2159918A2 D/A converter circuit and digital input class-D amplifier |
| 03/03/2010 | EP2159915A1 Broadband microwave frequency device with switching gain |
| 03/03/2010 | EP2159913A1 Low noise amplifier |
| 03/03/2010 | EP2159912A1 Multi-band Doherty amplifier |
| 03/03/2010 | EP2158676A2 Switchable multiband lna design |
| 03/03/2010 | EP1401097B1 Fm antenna amplifier |
| 03/03/2010 | CN201418062Y Human body induction control device for volume of medical equipment |
| 03/03/2010 | CN101663813A A data processing system for clipping correction |
| 03/03/2010 | CN101662264A Switch-type operational amplifier with low power consumption and large oscillation range |
| 03/03/2010 | CN101662263A Bias circuit used in Ku waveband internally-matched field effect transistor |
| 03/03/2010 | CN101662262A Class d amplifier control circuit and method |
| 03/02/2010 | US7671687 Electron beam RF amplifier and emitter |
| 03/02/2010 | US7671686 Low noise amplifier |
| 03/02/2010 | US7671685 Method and system for a low power fully differential noise cancelling low noise amplifier |
| 03/02/2010 | US7671684 FET bias circuit |
| 03/02/2010 | US7671682 Variable gain power amplifier |
| 03/02/2010 | US7671679 Semiconductor integrated circuit and amplifier for suppressing pop sound while minimizing voltage transition settling time |
| 03/02/2010 | US7671678 Serial link output stage differential amplifier and method |
| 03/02/2010 | US7671677 Current sense amplifier with extended common mode voltage range |
| 03/02/2010 | US7671676 Continuous time common-mode feedback module and method with wide swing and good linearity |
| 03/02/2010 | US7671675 Output limiting circuit, class D power amplifier and audio equipment |
| 03/02/2010 | US7671674 Amplifier circuit with automatic gain correction |
| 03/02/2010 | US7671673 Class-D amplifier |
| 02/25/2010 | WO2010022093A1 High-linearity low-noise receiver with load switching |
| 02/25/2010 | WO2010021957A1 Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels |
| 02/25/2010 | WO2010020278A1 Avalanche photodiode circuits |
| 02/25/2010 | WO2010001077A3 Circuit for amplifying a signal representing a variation in resistance of a variable resistance and corresponding capacitor |
| 02/25/2010 | WO2009126930A3 Voltage level shifter |
| 02/25/2010 | US20100046677 Amplifier with Single-ended Input and Differential Output |
| 02/25/2010 | US20100045864 Twisted pair communications line system |
| 02/25/2010 | US20100045387 Optical receiver-amplifier |
| 02/25/2010 | US20100045386 Amplifier circuit |
| 02/25/2010 | US20100045385 Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels |
| 02/25/2010 | US20100045384 System And Method For Pre-Charging A Current Mirror |
| 02/25/2010 | US20100045382 Bias circuit and semiconductor integrated circuit including the bias circuit |
| 02/25/2010 | US20100045381 Limiting amplifiers |
| 02/25/2010 | US20100045380 Low drop voltage regulator with instant load regulation and method |
| 02/25/2010 | US20100045379 Method of indication of system information updating |
| 02/25/2010 | US20100045378 commutating auto zero amplifier |
| 02/25/2010 | US20100045377 Switching Amplifier |
| 02/25/2010 | US20100045376 Class d amplifier control circuit and method |
| 02/25/2010 | US20100045373 Amplifier circuit |
| 02/25/2010 | US20100045372 Amplification circuit, amplification circuit noise reducing method and program thereof |
| 02/25/2010 | US20100044552 Automatic simultaneous dual gain readout integrated circuit using threshold voltage shifts of mosfet bulk to source potential |
| 02/25/2010 | DE102009018993A1 Verstärkeranordnung Amplifier arrangement |
| 02/24/2010 | EP2157716A1 Distortion compensator, optical receiver, distortion compensator and optical receiver controlling methods, and optical transmission system |
| 02/24/2010 | EP2156551A1 Configurable, variable gain lna for multi-band rf receiver |
| 02/24/2010 | EP2005593B1 Digital signal converter |
| 02/24/2010 | CN201414113Y Radio frequency (RF) push-pull power amplifier |
| 02/24/2010 | CN201414070Y 射频离子电源 RF plasma power |
| 02/24/2010 | CN101656518A Feed-forward power amplification circuit and method for realizing power amplification by using same |
| 02/24/2010 | CN101656517A Circuits, chips and working method of high-low power radio-frequency amplifiers |
| 02/24/2010 | CN101656516A Full-difference CMOS ultra wide band low-noise amplifier |
| 02/24/2010 | CN101656515A High and low power combination circuit of radio frequency power amplifier |
| 02/24/2010 | CN101656514A Gain controllable parallel radio-frequency power amplifier based on matching share |
| 02/23/2010 | US7668469 Optical receiver applicable to multiple transmission speed |
| 02/23/2010 | US7667543 Power supply device for driving an amplifier |
| 02/23/2010 | US7667542 Input stage for an amplifier |
| 02/23/2010 | US7667540 Class-AB driver design with improved frequency response |
| 02/23/2010 | US7667539 Low-voltage wide-range linear transconductor cell |
| 02/23/2010 | US7667511 Efficient pulse amplitude modulation transmit modulation |
| 02/23/2010 | US7667444 Capacitive load driving device |
| 02/18/2010 | WO2010019607A1 Techniques for improving balun loaded-q |