| 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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| 06/06/2012 | CN101886933B Hall switch circuit with temperature compensation |
| 06/06/2012 | CN101563841B Error correction system for a class-d power stage |
| 06/06/2012 | CN101563840B Power amplification device |
| 06/06/2012 | CN101517890B Signal processing method and system |
| 06/06/2012 | CN101515787B Audio power amplifier device |
| 06/06/2012 | CN101473533B Transmitter with pre-conditioning of amplifier signal |
| 06/05/2012 | US8193865 Output circuit using analog amplifier |
| 06/05/2012 | US8193856 Amplifier and switched capacitor amplifier circuit |
| 05/31/2012 | WO2012070540A1 Electronic component |
| 05/31/2012 | WO2012069231A1 Low-noise amplifier with impedance boosting circuit |
| 05/31/2012 | US20120133634 Apparatus, system, and method for generating a low power signal with an operational amplifier |
| 05/31/2012 | US20120133435 Amplification Circuit, Electronic Device, Amplification Method |
| 05/31/2012 | US20120133434 Method and apparatus for improving digital pre-distortion performance |
| 05/31/2012 | US20120133433 Apparatus for and method of controlling a predistorter, and method of detecting power control state |
| 05/31/2012 | DE102011082707A1 Leistungsverstärker und MMIC unter Verwendung desselben The same power amplifier MMIC and using |
| 05/31/2012 | DE102009023083B4 Verstärkerschaltung mit verbesserter Temperaturkompensation Amplifier circuit with improved temperature compensation |
| 05/30/2012 | EP2458731A2 Offset cancellation for continuous-time circuits |
| 05/30/2012 | EP2458730A1 Radiofrequency amplifier |
| 05/30/2012 | EP2457331A1 Power amplifier with switched output matching for multi-mode operation |
| 05/30/2012 | EP2457321A1 Split-biased current scalable buffer |
| 05/30/2012 | CN202261173U Signal amplifier capable of setting input impedance conversion |
| 05/30/2012 | CN202261172U Microwave power amplifier intelligent output line configuration |
| 05/30/2012 | CN202261171U Amplifying circuit for brushless motor driver |
| 05/30/2012 | CN202261170U S-waveband octave wideband power amplifier |
| 05/30/2012 | CN202261169U Circuit configuration of efficient linear power amplifier |
| 05/30/2012 | CN102484464A Digital tunable inter-stage matching circuit |
| 05/30/2012 | CN102484456A System for reducing distortion in an electronic circuit using nonlinear feedback |
| 05/30/2012 | CN102484455A 用于使用共享共用偏压电流的多重放大级来放大信号的系统及方法 Share a common bias current for the use of the multiple amplifier stage to a signal amplification system and method |
| 05/30/2012 | CN102484454A 用于功率放大的线性化电路和方法 Linear power amplifier circuit and method for |
| 05/30/2012 | CN102484453A 低噪声放大器和混合器 Low noise amplifier and mixer |
| 05/30/2012 | CN102484452A 具有基于二极管的偏压的堆叠式放大器 Biasing the diode with a stack-based amplifier |
| 05/30/2012 | CN102480450A Predistorter control device and method as well as power control state detection method |
| 05/30/2012 | CN102480272A Radiofrequency amplifier |
| 05/30/2012 | CN102480271A 用于连续时间电路的偏移消除 Used to offset the elimination of continuous-time circuit |
| 05/30/2012 | CN102480270A 功率放大器和使用了该功率放大器的mmic Power amplifier and the power amplifier using mmic |
| 05/30/2012 | CN101789762B Configurable current sink in tower top amplifier |
| 05/30/2012 | CN101753104B Pseudo-differential motion switching capacitance circuit |
| 05/30/2012 | CN101656513B Method for protecting power amplifier and protective circuit |
| 05/30/2012 | CN101227172B Simulated D class amplifier |
| 05/30/2012 | CN101179257B High-frequency power amplifier improved in size and cost |
| 05/30/2012 | CN101093980B In-line distortion cancellation circuits for linearization of electronic and optical signals with phase and frequency adjustment |
| 05/29/2012 | US8188788 Systems and methods for a discrete resizing of power devices with concurrent power combining structure for radio frequency power amplifier |
| 05/24/2012 | WO2012066839A1 High-frequency amplifier, and high-frequency module and wireless machine using same |
| 05/24/2012 | WO2012066659A1 High-frequency amplifier, and high-frequency module and wireless machine using same |
| 05/24/2012 | WO2012066526A1 Power amplifier with an adaptive bias |
| 05/24/2012 | WO2012066383A1 Orthogonal basis function set for ditigal predistorter |
| 05/24/2012 | WO2012066382A1 Non-linear model with tap output normalization |
| 05/24/2012 | WO2012066381A1 Configurable basis-function generation for nonlinear modeling |
| 05/24/2012 | WO2012066380A1 Joint process estimator with variable tap delay line for use in power amplifier digital predistortion |
| 05/24/2012 | WO2012066370A1 Method and frequency agile pre-distorted transmitter using programmable digital up and down conversion |
| 05/24/2012 | US20120126899 Power Amplifier with Stabilising Network |
| 05/24/2012 | US20120126896 Offset cancellation for continuous-time circuits |
| 05/24/2012 | US20120126891 Power amplification apparatus |
| 05/24/2012 | US20120126889 Low Distortion Variable Gain Amplifier (VGA) |
| 05/24/2012 | US20120126886 Method and arrangement in a mobile communication system |
| 05/24/2012 | DE102011085460A1 Hochleistungs-Leistungsverstärker mit mehreren Leistungsmodi High-power amplifier with multiple power modes |
| 05/24/2012 | CA2817805A1 Orthogonal basis function set for digital predistorter |
| 05/24/2012 | CA2817801A1 Configurable basis-function generation for nonlinear modeling |
| 05/24/2012 | CA2815541A1 Joint process estimator with variable tap delay line for use in power amplifier digital predistortion |
| 05/24/2012 | CA2815438A1 Non-linear model with tap output normalization |
| 05/23/2012 | EP2456068A1 Low-noise amplifier with impedance boosting circuit |
| 05/23/2012 | EP2454812A2 A system and a method for signal processing |
| 05/23/2012 | EP2454811A1 Amplifier stage |
| 05/23/2012 | EP2266203B1 Integrated circuit and corresponding method of processing a multitype radio frequency digital signal |
| 05/23/2012 | EP1710918B1 Transmitter and wireless communication apparatus |
| 05/23/2012 | CN202231676U Novel vehicle-mounted audio power amplifier circuit |
| 05/23/2012 | CN102474275A 具有用于多模式操作的经切换输出匹配的功率放大器 Having a switched output matching for multi-mode operation of the power amplifier |
| 05/23/2012 | CN102474231A 可变增益放大器 A variable gain amplifier |
| 05/23/2012 | CN102474229A 分割偏置电流可缩放缓冲器 Split bias current scalable buffer |
| 05/23/2012 | CN102474228A 高频功率放大器 High frequency power amplifier |
| 05/23/2012 | CN102474227A 具有可变匹配电路以改进线性度的放大器 An amplifier having a variable matching circuit in order to improve the linearity |
| 05/23/2012 | CN102474226A 多级阻抗匹配 Multi-stage impedance matching |
| 05/23/2012 | CN102474225A Bias current monitor and control mechanism for amplifiers |
| 05/23/2012 | CN102474224A 放大器级 Amplifier stage |
| 05/23/2012 | CN102474223A 具有多重操作模式的放大器模块 Amplifier module with multiple operating modes |
| 05/23/2012 | CN102474222A 爆裂声减少电路和音频放大器中使用的具有这种爆裂声减少电路的音频电路 The audio circuitry crackle reduction circuit and audio amplifier used has such a popping sound reduction circuit |
| 05/23/2012 | CN102468809A 一种高功率线性功率放大器 A high-power linear power amplifier |
| 05/23/2012 | CN102468808A 音频功率放大电路的热保护电路与方法 Audio power amplifier circuit thermal protection circuit and method |
| 05/23/2012 | CN101872010B Big Dipper/GPS (Global Position System) signal power divider and manufacture method thereof and dual-system radio frequency receiving module |
| 05/23/2012 | CN101800522B Tunable ferro-electric filter |
| 05/23/2012 | CN101594325B Linearization method for pre-distorted radio frequency amplifier |
| 05/22/2012 | US8185359 System and method for transforming data between the time domain and the combustion pulse domain |
| 05/22/2012 | US8184678 Method and system for transmitting signals with reduced spurious emissions |
| 05/22/2012 | US8183933 High-voltage impulse amplifier |
| 05/18/2012 | WO2012064155A2 Device and method for increasing output efficiency of mobile communication terminal |
| 05/18/2012 | WO2012063462A1 Mixing circuit |
| 05/17/2012 | US20120121273 Common base circuit with output compensation, current-to-voltage circuit configured with common base amplifier, and optical receiver implemented with the same |
| 05/17/2012 | US20120119832 Joint Process Estimator with Variable Tap Delay Line for use in Power Amplifier Digital Predistortion |
| 05/17/2012 | US20120119831 Orthogonal Basis Function Set for Digital Predistorter |
| 05/17/2012 | US20120119828 Variable gain amplifier and audio device |
| 05/16/2012 | EP2452431A1 The double integral method of powering up or down a speaker |
| 05/16/2012 | EP2452430A1 Dual-performance low noise amplifier for satellite-based radiofrequency communication |
| 05/16/2012 | EP2452429A2 Open-loop line driver control method and apparatus |
| 05/16/2012 | CN102460980A 发送机相移的确定和补偿 Phase shift of the transmitter is determined and compensated |
| 05/16/2012 | CN102460963A Amplifier circuit, integrating circuit, and light-detection device |
| 05/16/2012 | CN102460960A D类放大装置 Class D amplification device |
| 05/16/2012 | CN102460959A Rf单端/差动转换器 Rf single-ended / differential converter |
| 05/16/2012 | CN102460958A Apparatus and method for predictive over-drive detection |
| 05/16/2012 | CN102460957A 用于无线装置中的过驱动状态的检测电路 For the wireless device in an overdrive state detecting circuit |
| 05/16/2012 | CN102460956A 无线通信用高效发送器 Efficient wireless communication transmitter |