| 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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| 09/16/2014 | US8836429 CMOS integrated circuit and amplifying circuit |
| 09/16/2014 | US8836428 Operational amplifier having low power consumption |
| 09/16/2014 | US8836426 Adaptive linearizer with narrowband feedback path |
| 09/16/2014 | US8836425 Instrumentation input systems |
| 09/16/2014 | US8836422 Control loop for amplification stage |
| 09/16/2014 | US8836420 Analog circuit and display device and electronic device |
| 09/16/2014 | US8836374 High performance pre-mixer buffer in wireless communications systems |
| 09/15/2014 | CA2845247A1 Verifying and mitigating oscillation in amplifiers |
| 09/15/2014 | CA2845096A1 Linearization of heterogeneous power amplifier systems |
| 09/12/2014 | WO2014137783A2 Power amplifier system including a composite digital predistorter |
| 09/12/2014 | WO2014135823A1 Amplifier circuitry for envelope modulators, envelope modulators incorporating said amplifier circuitry and method of modulating a signal envelope |
| 09/11/2014 | US20140254837 Integrated audio amplification circuit with multi-functional external terminals |
| 09/11/2014 | US20140254720 Pa cell, pa module, wireless communication unit, rf transmitter architecture and method therefor |
| 09/11/2014 | US20140254656 Method of Transmitting Data Samples with Reduced Bandwidth |
| 09/11/2014 | US20140253249 Circuit for providing a flat gain response over a selected frequency range and method of use |
| 09/11/2014 | US20140253243 Power amplifying module |
| 09/11/2014 | US20140253236 Generating Negative Impedance Compensation |
| 09/11/2014 | US20140253232 Amplifier circuit |
| 09/10/2014 | EP2775609A1 Doherty power amplifier and method and device for improving power amplification efficiency thereof |
| 09/09/2014 | US8831543 Method and system for a linearized transmitter including a power amplifier |
| 09/09/2014 | US8831138 Circuit for transmitting ASK RF signals with data signal edge adaptation |
| 09/09/2014 | US8830008 Generator of a modulated radiofrequency signal, method for calibrating the generator, and magnetic resonance imaging system |
| 09/09/2014 | US8830000 Multi-band amplifier and method of amplifying multi-band |
| 09/09/2014 | US8829999 Low noise amplifiers including group III nitride based high electron mobility transistors |
| 09/09/2014 | US8829996 High voltage MOS input stage |
| 09/09/2014 | US8829993 Linearization circuits and methods for multilevel power amplifier systems |
| 09/09/2014 | US8829992 Signal level conversion circuit, physical quantity detection device and electronic apparatus |
| 09/09/2014 | US8829990 Attenuating non-linear noise in an amplifier with alternating DC-offset correction |
| 09/09/2014 | US8829989 DC offset cancellation for a multi-stage amplifier |
| 09/09/2014 | US8829988 Chopped circuit with AC and DC ripple error feedback loops |
| 09/09/2014 | CA2573862C System and method for current-mode amplitude modulation |
| 09/04/2014 | WO2014110289A3 Programmably configured switchmode audio amplifier |
| 09/04/2014 | US20140247906 Microwave Predistorted Signal Generating Method and Apparatus |
| 09/02/2014 | US8825413 Spectral deconvolution in ion cyclotron resonance mass spectrometry |
| 09/02/2014 | US8824983 System and method of prebias for rapid power amplifier response correction |
| 09/02/2014 | US8824981 Recalibration of envelope tracking transfer function during active transmission |
| 09/02/2014 | US8824978 RF amplifier architecture and related techniques |
| 09/02/2014 | US8824975 Radio communication device and radio communication method |
| 09/02/2014 | US8824703 Amplifier circuit |
| 09/02/2014 | US8824595 High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications |
| 09/02/2014 | US8823456 Cancellation of gain change due to amplifier self-heating |
| 09/02/2014 | US8823452 GM-ratioed amplifier |
| 09/02/2014 | US8823449 Extremely high frequency dual-mode class AB power amplifier |
| 09/02/2014 | CA2576778C Self-calibrating multi-port circuit and method |
| 08/28/2014 | WO2014130284A1 Amplifiers with multiple outputs and configurable degeneration inductor |
| 08/28/2014 | WO2014130075A1 Power amplifier with feedback impedance for stable output |
| 08/28/2014 | WO2014128158A1 Distributed power amplifier circuit |
| 08/28/2014 | WO2014127534A1 Method and device for controlling a power amplifier capable of utilizing nonlinearity correction and a power amplifier system |
| 08/28/2014 | WO2014100518A3 Driver amplifier with asymmetrical t-coil matching network |
| 08/28/2014 | US20140241462 Circuit and method for envelope tracking and envelope-tracking transmitter for radio-frequency transmission |
| 08/28/2014 | US20140240278 Operational amplifier and touch sensing apparatus including the same |
| 08/28/2014 | US20140240063 Transformer and electrical circuit |
| 08/28/2014 | US20140240052 High Efficiency Power Amplifiers with Advanced Power Solutions |
| 08/28/2014 | US20140240051 Audio Amplifier Power Supply with Inherent Power Factor Correction |
| 08/28/2014 | US20140240050 Power circuit |
| 08/28/2014 | US20140240044 Dual path operational amplifier |
| 08/28/2014 | DE102014101620A1 Multimode-verstärkersystem Multimode amplifier system |
| 08/28/2014 | DE102014101618A1 Hüllkurvenverfolgungssystem und Verfahen zum Kalibrieren einer Versorgungsspannung eines Hüllkurven-Verfolgungs-Leistungsverstärkers Hüllkurvenverfolgungssystem and Procedure for calibrating a supply voltage of an envelope tracking power amplifier |
| 08/27/2014 | EP2770634A1 Distributed power amplifier circuit |
| 08/26/2014 | US8818764 Downmixing device and method |
| 08/26/2014 | US8818762 Method and apparatus for the spatially resolved measurement of a physical variable |
| 08/26/2014 | US8818760 Modular re-configurable profiling core for multiprocessor systems-on-chip |
| 08/26/2014 | US8818292 Bi-directional amplifier with a common signal detector |
| 08/26/2014 | US8816793 Transmission line, impedance transformer, integrated circuit mounted device, and communication device module |
| 08/26/2014 | US8816767 Amplifier calibration |
| 08/26/2014 | US8816765 Coupled inductor and calibrated complementary low noise amplifiers |
| 08/21/2014 | US20140232472 Method and Device for Protecting a High-Frequency Power Amplifier Against a Termination fault |
| 08/21/2014 | US20140232471 Radio frequency amplifying apparatus having protection voltage varying function |
| 08/21/2014 | US20140232470 High Efficiency Amplification |
| 08/21/2014 | US20140232468 Suppression circuit for suppressing unwanted transmitter output |
| 08/21/2014 | US20140232456 Fast-Settling Capacitive-Coupled Amplifiers |
| 08/21/2014 | DE102009006332B4 Leitungstreiber oder Verstärker mit frequenzabhängig variabler Schein-Impedanz Line driver or amplifier with frequency-dependent variable impedance Sparkle |
| 08/20/2014 | EP2768142A1 Differential charge reduction |
| 08/20/2014 | EP2767053A1 Adaptive transmitter pre-distortion reusing existing receiver for feedback |
| 08/20/2014 | EP2766989A1 Apparatus and method for calibration of supply modulation in transmitter |
| 08/20/2014 | EP2766988A1 Control system for a power amplifier |
| 08/20/2014 | EP2766987A1 Apparatus and method for modulating supply for a power amplifier |
| 08/20/2014 | EP2766986A1 Apparatus and method for improving efficiency in power amplifier |
| 08/19/2014 | US8812052 SPS receiver with adjustable linearity |
| 08/19/2014 | US8810313 Multi-band power amplifier |
| 08/19/2014 | US8810311 Auto-zeroed amplifier with low input leakage |
| 08/19/2014 | CA2843078A1 A suppresion circuit for suppressing unwanted transmitter output |
| 08/14/2014 | WO2014123744A1 Power tracker for multiple transmit signals sent simultaneously |
| 08/14/2014 | WO2014122080A1 Signal predistortion by addition of a correction term depending on a predefined constellation symbol, a transmission model and a target constellation symbol |
| 08/14/2014 | WO2013116427A8 Method and apparatus to independently control front end gain and baseband gain |
| 08/14/2014 | US20140227988 Amplifier and wireless communication device |
| 08/14/2014 | US20140225674 Bi-directional power supply signal based linear amplifier |
| 08/14/2014 | US20140225670 Method and apparatus for correcting asymmetry of an input signal of an amplifier |
| 08/14/2014 | US20140225668 Digital predistortion apparatus and method using the sum of absolute input signals for a non-identical number of delays |
| 08/14/2014 | DE102014101427A1 Ein Eingangsanpassungsnetzwerk für eine Leistungsschaltung An input matching network for an output circuit |
| 08/14/2014 | DE102013002477A1 Steuervorrichtung für ein Sendeverstärkerelement A control apparatus for a transmission amplifier element |
| 08/13/2014 | EP2765704A1 Method for signal conditioning in a processing apparatus and processing apparatus thereof |
| 08/13/2014 | CN203775147U 限幅放大器 Limiting Amplifier |
| 08/13/2014 | CN203775146U 前馈功率放大器 Feedforward amplifier |
| 08/13/2014 | CN203775145U 基于t型反馈网络的宽带功率放大器 T type based on broadband amplifier feedback network |
| 08/13/2014 | CN203775144U 一种用cmos管做开关实现线性功率放大器的高低功率的电路 One kind of pipe made with cmos switch to achieve low power linear power amplifier circuit |
| 08/13/2014 | CN203775143U 用于射频通讯的前馈线性功率放大器 RF communications for feedforward amplifier |
| 08/13/2014 | CN103988425A 包络跟踪推挽或差分功率放大器 Envelope Tracking push-pull or differential amplifier |
| 08/13/2014 | CN103988424A 具有高功率附加效率的倒装芯片线性功率放大器 Has a flip-chip high power added efficiency linear power amplifier |
| 08/13/2014 | CN103988406A 用于包络跟踪的开关的平均频率控制 The average frequency for the envelope tracking control switch |