| 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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| 03/21/2006 | US7015752 Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
| 03/21/2006 | US7015751 Decorrelated power amplifier linearizers |
| 03/21/2006 | US7015750 Method for lowering noise and providing offset correction in a transimpedance amplifier |
| 03/16/2006 | WO2006028055A1 Class d amplifier |
| 03/16/2006 | WO2006027755A1 Tunable cascode lna with flat gain response over a wide frequency range |
| 03/16/2006 | WO2006027583A1 A method and apparatus for pre-conditioning an electrical signal |
| 03/16/2006 | WO2005117382A3 Multi-channel pulse modulator system |
| 03/16/2006 | US20060058983 Signal separation method, signal separation device, signal separation program and recording medium |
| 03/16/2006 | US20060058982 Data relay device and data management system using the same |
| 03/16/2006 | US20060056647 Separating multiple audio signals recorded as a single mixed signal |
| 03/16/2006 | US20060055464 Travelling-wave amplifier |
| 03/16/2006 | US20060055458 Doherty amplifier |
| 03/16/2006 | US20060055457 Amplifier circuit |
| 03/16/2006 | US20060055456 Phase corrected miller compensation of chopper and nested chopper amplifiers |
| 03/16/2006 | DE102005039665A1 Detektion- und Messschaltungen für die Stärke eines Empfangssignals und drahtloser Empfänger Detektion- and measurement circuits for the strength of a received signal and wireless receiver |
| 03/16/2006 | DE10143770B4 Verstärkerschaltung Amplifier circuit |
| 03/15/2006 | EP1635467A2 Radio apparatus |
| 03/15/2006 | EP1635454A1 Low-noise amplifier |
| 03/15/2006 | EP1635453A1 Tunable low noise amplifier |
| 03/15/2006 | EP1634379A1 Digitally adaptive modulated transmitter |
| 03/15/2006 | EP1634370A1 Amplifier using an analogue switch |
| 03/15/2006 | EP1634369A1 Amplifier impedance matching |
| 03/15/2006 | EP1324486B1 Method and circuit for distortion compensation and output control |
| 03/15/2006 | EP1312159B8 Radio frequency feedback amplifier circuits |
| 03/15/2006 | EP1127406B1 High efficiency power amplifier |
| 03/15/2006 | CN2765383Y Dual-power voltage balancing circuit for sound power amplifier |
| 03/15/2006 | CN1748362A Self zeroing for critical, continuous-time applications |
| 03/15/2006 | CN1747367A Received signal strength measurement circuit, received signal strength detection circuit and wireless receiver |
| 03/15/2006 | CN1245799C Variable gain amplifier |
| 03/15/2006 | CN1245759C Multi-frequency band power amplifier |
| 03/14/2006 | US7013244 Method and system for estimation of quantities corrupted by noise and use of estimates in decision making |
| 03/14/2006 | US7013114 Impedence-matched transmitting device having high interference immunity |
| 03/14/2006 | US7012969 Distortion compensating apparatus |
| 03/14/2006 | US7012469 Integrated circuit device having high efficiency at the time of low power output |
| 03/14/2006 | US7012468 Circuit configuration and method for reducing the 1/f noise of MOSFETs |
| 03/14/2006 | US7012411 Switching regulator control circuit, switching regulator and switching regulator control method |
| 03/09/2006 | US20060052987 Wireless measuring device |
| 03/09/2006 | US20060052986 Method and apparatus for animal environmental and health monitoring |
| 03/09/2006 | US20060051038 Electronic apparatus and design method |
| 03/09/2006 | US20060050585 Device for setting up a write current in an MRAM type memory and memory comprising |
| 03/09/2006 | US20060049870 Efficient generation of radio frequency currents |
| 03/08/2006 | EP1633041A2 Active circuit having improved linearity using common gate transistors |
| 03/08/2006 | EP1632073A1 Method and system for switching mode power amplification |
| 03/08/2006 | EP1632035A1 Multiband mixer |
| 03/08/2006 | EP1632033A2 Digital baseband system and process for compensating for analog radio transmitter impairments |
| 03/08/2006 | EP1632026A2 Temperature and process compensation of mosfet operating in sub-threshold mode |
| 03/08/2006 | EP1632023A1 Low distortsion class-d amplifier using carrier reference signal symmetry modulation |
| 03/08/2006 | EP1632022A1 Output power control for a switching mode power amplifier |
| 03/08/2006 | EP1573907A4 Delay mismatched feed forward amplifier system using penalties and floors for control |
| 03/08/2006 | EP1573900A4 Feed forward amplifier system using penalties and floors for optimal control |
| 03/08/2006 | EP1474865A4 Deed forward rf power amplifier with high efficiency main amplifier and highly linear error amplifier |
| 03/08/2006 | EP1362429A4 Cartesian loop systems with digital processing |
| 03/08/2006 | EP1346466B1 Modulator using class-e stage |
| 03/08/2006 | CN1745515A Method for controlling power for a mobile communications terminal |
| 03/08/2006 | CN1744430A High-frequency power amplifier |
| 03/08/2006 | CN1744429A Power amplifier with dynamic sychronous voltage bias circuit for removing cross-over distortion |
| 03/08/2006 | CN1244983C Circuit of cancelling DC offset applied to variable gain amplifier |
| 03/08/2006 | CN1244982C Thermally distributed darlington amplifier |
| 03/07/2006 | US7010469 Method of computing partial CRCs |
| 03/07/2006 | US7010340 Methods, systems, and associated implantable devices for dynamic monitoring of physiological and biological properties of tumors |
| 03/07/2006 | US7010284 Wireless communications device including power detector circuit coupled to sample signal at interior node of amplifier |
| 03/07/2006 | US7010282 Dynamic bias for RF power amplifiers |
| 03/07/2006 | US7010281 Array antenna apparatus utilizing a nonlinear distortion compensator circuit |
| 03/07/2006 | US7010280 Linear RF power amplifier and transmitter |
| 03/07/2006 | US7010057 Dual mode multi-slot EGPRS transmitter |
| 03/07/2006 | US7009455 Tunable power amplifier matching circuit |
| 03/07/2006 | US7009454 Method and apparatus for optimization of amplifier with adjustable output range |
| 03/07/2006 | US7009453 Bias current supply circuit and amplification circuit |
| 03/07/2006 | US7009452 Method and apparatus for increasing the linearity and bandwidth of an amplifier |
| 03/02/2006 | WO2006021790A1 High efficiency variable voltage supply |
| 03/02/2006 | WO2006021774A1 A method of controlling a linear power amplifier |
| 03/02/2006 | WO2005120001A3 Fully digital transmitter including a digital band-pass sigma-delta modulator |
| 03/02/2006 | WO2005110044A3 Dual-band cmos front-end with two gain modes |
| 03/02/2006 | US20060047484 Method and system for optimizing denoising parameters using compressibility |
| 03/02/2006 | US20060044071 Sliding cascode circuit |
| 03/02/2006 | US20060044066 CMOS amplifiers with frequency compensating capacitors |
| 03/02/2006 | US20060044064 Low noise amplifier |
| 03/02/2006 | US20060044060 Circuit for parallel operation of Doherty amplifiers |
| 03/02/2006 | US20060044059 Feedback circuit |
| 03/01/2006 | EP1630965A1 Power amplifying circuit in mobile terminal |
| 03/01/2006 | EP1630962A1 Digital differential amplification control device |
| 03/01/2006 | EP1630951A1 Low noise amplifier |
| 03/01/2006 | EP1559192B1 Method and device for training an rf amplifier linearization device, and mobile terminal incorporating same |
| 03/01/2006 | EP1436764B1 Amplifier modulation |
| 03/01/2006 | EP1350311B1 Power amplifier saturation detection and compensation |
| 03/01/2006 | EP1224731B1 Improved predistortion compensation for a power amplifier |
| 03/01/2006 | CN2762436Y High precision temp.-compensation device for stabilizing intermodulation performance of power amplifier |
| 03/01/2006 | CN1742428A High efficiency power amplification apparatus with multiple power mode |
| 03/01/2006 | CN1741373A Circuit for parallel operation of doherty amplifiers |
| 03/01/2006 | CN1741372A Semiconductor apparatus |
| 03/01/2006 | CN1741371A Double-way sampling loop negative feedback method and two-way sampling negative feed back amplifier |
| 03/01/2006 | CN1741370A An amplifier apparatus and method |
| 03/01/2006 | CN1244197C Controlled self-oscillation modulator and power conversion system using such a modulator |
| 02/28/2006 | US7006803 Power amplification circuit for communication device |
| 02/28/2006 | US7006070 Operational amplifier circuit, driving circuit, and driving method |
| 02/28/2006 | US7005924 Current limiting circuit with rapid response feedback loop |
| 02/28/2006 | US7005923 Adaptive bias circuit for a power amplifier |
| 02/28/2006 | US7005919 Even order distortion elimination in push-pull or differential amplifiers and circuits |
| 02/28/2006 | US7005918 Current-to-voltage converting apparatus and impedance measuring apparatus |
| 02/28/2006 | US7005916 Amplifier circuit, driving circuit of display apparatus, portable telephone and portable electronic apparatus |