| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 08/28/2014 | US20140240041 Operational amplifier circuit |
| 08/28/2014 | US20140240039 Enhanced doherty amplifier |
| 08/28/2014 | US20140240034 Divide by 2 and 3 Charge Pump Methods |
| 08/28/2014 | DE112012004869T5 Klasse-D-Verstärker mit Multipegelverstärkung Class-D amplifier with multi-level gain |
| 08/28/2014 | DE112011105962T5 Digitaler Polarmodulator für einen HF-Leistungsschaltverstärker Digital polar modulator for RF power 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 |
| 08/28/2014 | DE102014101417A1 Verstärkerstufe Amplifier stage |
| 08/27/2014 | EP2770634A1 Distributed power amplifier circuit |
| 08/27/2014 | EP2769468A1 Method and apparatus for outputting an audio signal |
| 08/26/2014 | US8818302 Harmonic trap circuit for linear differential power amplifiers |
| 08/26/2014 | US8817671 Full duplex transmission circuit and electronic apparatus |
| 08/26/2014 | US8817670 Full duplex communication circuit and method therefor |
| 08/26/2014 | US8816793 Transmission line, impedance transformer, integrated circuit mounted device, and communication device module |
| 08/26/2014 | US8816775 Quiescent current determination using in-package voltage measurements |
| 08/26/2014 | US8816774 Power amplifier system |
| 08/26/2014 | US8816773 Offset current trim circuit |
| 08/26/2014 | US8816772 Differential amplifier with function of variable gain and optical receiver implemented with the same |
| 08/26/2014 | US8816771 Signal amplifying circuit with reduced output signal noise by introducing coupling effect and related method thereof |
| 08/26/2014 | US8816770 Low-voltage constant-gm rail-to-rail CMOS input stage with improved gain |
| 08/26/2014 | US8816769 Differential stacked output stage for power amplifiers |
| 08/26/2014 | US8816767 Amplifier calibration |
| 08/26/2014 | US8816766 Semiconductor integrated circuit, and reception apparatus and radio communication terminal including semiconductor integrated circuit |
| 08/26/2014 | US8816764 Cascaded class D amplifier with improved linearity |
| 08/26/2014 | US8816763 Integrator input error correction circuit and circuit method |
| 08/26/2014 | US8816268 Input unit cell circuitry for transducer readout |
| 08/26/2014 | US8816267 DC bias evaluation in an AC coupled circuit via transient gain response |
| 08/21/2014 | WO2014124715A1 Audio amplifier |
| 08/21/2014 | US20140235187 Front-End System for a Radio Transmitter |
| 08/21/2014 | US20140233763 Amplifier for Electrostatic Transducers |
| 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 | US20140232469 Rf power amplifier and method of assembly for same |
| 08/21/2014 | US20140232467 High-frequency amplifier module and high-frequency amplifier module unit |
| 08/21/2014 | US20140232466 Linear amplifier and multistage linear amplifier |
| 08/21/2014 | US20140232465 Frequency compensation techniques for low-power and small-area multistage amplifiers |
| 08/21/2014 | US20140232464 Low power high-speed digital receiver |
| 08/21/2014 | US20140232463 Class resonant-h electrosurgical generators |
| 08/21/2014 | US20140232462 Power amplifier using differential structure |
| 08/21/2014 | US20140232461 Sense amplifier system and sensing method thereof |
| 08/21/2014 | US20140232460 Differential charge reduction |
| 08/21/2014 | US20140232458 Method and Apparatus for a Multi-Standard, Multi-Mode, Dynamic, DC-DC Converter for Radio Frequency Power Amplifiers |
| 08/21/2014 | US20140232457 Fast, low power comparator with dynamic bias background |
| 08/21/2014 | US20140232456 Fast-Settling Capacitive-Coupled Amplifiers |
| 08/20/2014 | EP2768136A1 Audio amplifier |
| 08/20/2014 | EP2766991A2 Hybrid coupler |
| 08/20/2014 | EP2766990A1 Device for converting current pulses into voltage pulses |
| 08/20/2014 | EP2766989A1 Apparatus and method for calibration of supply modulation in transmitter |
| 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 | US8811531 Quadrature lattice matching network |
| 08/19/2014 | US8810701 Image sensor system and amplifying/digitizing circuit therof for promoting performance while saving on power consumption and reducing the circuit area |
| 08/19/2014 | US8810319 Dual-stage continuous-time linear equalizer |
| 08/19/2014 | US8810318 Power amplifier |
| 08/19/2014 | US8810316 Method and apparatus for implementing a low noise amplifier with associated gain and input impedance |
| 08/19/2014 | US8810315 Differential amplifying circuit |
| 08/19/2014 | US8810313 Multi-band power amplifier |
| 08/19/2014 | US8810312 Apparatus and method for improving performance in Doherty amplifier |
| 08/19/2014 | US8810285 Semiconductor integrated circuit apparatus and radio-frequency power amplifier module |
| 08/14/2014 | US20140227988 Amplifier and wireless communication device |
| 08/14/2014 | US20140226839 Audio signal receiving device and audio signal adapter device |
| 08/14/2014 | US20140225680 High-frequency filter |
| 08/14/2014 | US20140225675 Apparatus for a radio frequency integrated circuit |
| 08/14/2014 | US20140225674 Bi-directional power supply signal based linear amplifier |
| 08/14/2014 | US20140225672 Input match network with rf bypass path |
| 08/14/2014 | US20140225671 High efficiency power amplifier |
| 08/14/2014 | US20140225670 Method and apparatus for correcting asymmetry of an input signal of an amplifier |
| 08/14/2014 | US20140225669 Extended variable gain amplification bandwidth with high-frequency boost |
| 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 | US20140225667 Power management in transceivers |
| 08/14/2014 | US20140225666 Redundant Amplifier and Switching Method Thereof |
| 08/14/2014 | DE102014101427A1 Ein Eingangsanpassungsnetzwerk für eine Leistungsschaltung An input matching network for an output circuit |
| 08/14/2014 | DE102014100660A1 Verstärker mit variabler Verstärkung Variable gain amplifier |
| 08/13/2014 | CN203775240U Dpd mcpa的反馈装置及mcpa设备 Dpd mcpa mcpa feedback devices and equipment |
| 08/13/2014 | CN203775152U 一种自检式电荷放大器电路 One kind of self-check-type charge amplifier circuit |
| 08/13/2014 | CN203775151U 一种消除直流失调电压的运算放大器电路 For eliminating the DC offset voltage of the op amp circuit |
| 08/13/2014 | CN203775150U 一种基于超声波信号检测放大电路的局部放电检测器 Based on ultrasonic signal detection amplifier circuit of partial discharge detector |
| 08/13/2014 | CN203775149U 具有功率限制功能的d类功放芯片和音频播放设备 D class amplifier chip and audio playback devices with the power limit function |
| 08/13/2014 | CN203775148U 红外遥控音量数字功率放大器 Infrared remote volume digital 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 | 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 | 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 |
| 08/13/2014 | CN103986431A 光电二极管前置放大电路 Photodiode preamplifier circuit |
| 08/13/2014 | CN103986430A 一种混合动力车用模拟信号处理电路 For a hybrid analog signal processing circuit |
| 08/13/2014 | CN103986429A 基于动态前馈运算放大器的电路 Dynamic feedforward operational amplifier circuit |
| 08/13/2014 | CN103986428A 超频宽放大器及其设计方法 Overclocking bandwidth amplifier and its design method |
| 08/13/2014 | CN103986427A 一种可选放大倍数的仪表放大器电路 An optional magnification instrumentation amplifier circuit |
| 08/13/2014 | CN103986426A 功率放大器、功率放大器中的环路控制方法和装置 Power amplifier, the power amplifier control loop in a method and apparatus |
| 08/13/2014 | CN103986425A 基于射频直流反馈的功率放大器 RF power amplifiers based on dc feedback |
| 08/13/2014 | CN103986424A 放大器和无线通信设备 Amplifiers and wireless communication devices |
| 08/13/2014 | CN103986423A 三级晶体管串迭的功率放大器 Three transistor amplifier string Diego |
| 08/13/2014 | CN103986422A 一种双频带射频功率放大器阻抗匹配电路 One kind of dual-band RF power amplifier impedance matching circuit |
| 08/13/2014 | CN103986421A 用于电源电路的输入匹配网络 The input matching network is used for a power supply circuit |
| 08/13/2014 | CN101816123B 分布式低噪声放大器 Distributed low-noise amplifier |
| 08/12/2014 | US8805207 Distortion compensator, optical receiver, distortion compensator and optical receiver controlling methods, and optical transmission system |
| 08/12/2014 | US8803615 Impedance matching circuit with tunable notch filters for power amplifier |