| 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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| 11/17/2010 | CN101888215A Radio-frequency power amplifier circuit with adjustable predistortion function |
| 11/17/2010 | CN101888214A Cascode power amplifier with improved efficiency and linearity |
| 11/17/2010 | CN101888213A Push-pull radio-frequency power amplifier with improved linearity and efficiency |
| 11/17/2010 | CN101888212A Circuit structure capable of increasing linearity and power added efficiency of power amplifier |
| 11/17/2010 | CN101888211A Calibration method of RF power amplifier and device |
| 11/17/2010 | CN101888210A Variable gain low-noise amplifier |
| 11/17/2010 | CN101886933A Hall switch circuit with temperature compensation |
| 11/16/2010 | US7834688 Linearised power amplifier |
| 11/16/2010 | US7834686 Power amplifier |
| 11/16/2010 | US7834685 Chopped auto-zeroed ping-pong amplifier and related apparatus, system, and method |
| 11/11/2010 | WO2010129387A1 Boosting xdsl amplifier supply power on-demand |
| 11/11/2010 | WO2010128160A1 Pre-distortion for a radio frequency power amplifier |
| 11/11/2010 | US20100283548 Multi-primary distributed active transformer amplifier power supply and control |
| 11/11/2010 | US20100283544 Harmonic processing circuit and amplifying circuit using the same |
| 11/11/2010 | US20100283540 Pre-distortion for a Radio Frequency Power Amplifier |
| 11/11/2010 | US20100283327 Method and apparatus for transmission of energy and data |
| 11/11/2010 | CA2777469A1 Pre-distortion for a radio frequency power amplifier |
| 11/10/2010 | EP2248316A1 A method for compensating signal distortion in an emitting payload |
| 11/10/2010 | EP2248256A1 Lna having a post-distortion mode and a high-gain mode |
| 11/10/2010 | EP2248255A2 Baseband-derived rf digital predistortion |
| 11/10/2010 | EP2248254A1 Electronic device for microwave apparatuses onboard a satellite |
| 11/10/2010 | CN101884167A Transmitter comprising a pulse width pulse position modulator and method thereof |
| 11/10/2010 | CN101882917A Boosting xdsl amplifier supply power on-demand |
| 11/10/2010 | CN101882914A Efficiency and linearity-enhanced power amplifier |
| 11/10/2010 | CN101882913A Circuit for improving linearity and power added efficiency of power amplifier |
| 11/10/2010 | CN101882912A Radio-frequency CASCODE structure power amplifier with improved linearity and power added efficiency |
| 11/10/2010 | CN101882911A Filter circuit for improving linearity and power added efficiency of power amplifier |
| 11/10/2010 | CN101882910A Output matching circuit for improving power added efficiency and linearity of power amplifier |
| 11/10/2010 | CN101520666B Wideband digital predistortion power amplifier temperature compensation method and system |
| 11/10/2010 | CN101212204B Power supply device for audio system and the audio system |
| 11/10/2010 | CN101199112B Feed forward amplifier system and method using the pilot frequency from a positive feedback pilot generation and detection circuit to improve second loop convergence |
| 11/09/2010 | US7831413 Sound field measuring method and sound field measuring device |
| 11/09/2010 | US7831410 Remotely monitoring/diagnosing distributed components of a supervisory process control and manufacturing information application from a central location |
| 11/09/2010 | US7830206 Amplifier circuit |
| 11/04/2010 | WO2010126907A1 Adaptive digital predistortion of complex modulated waveform using localized peak feedback from the output of a power amplifier |
| 11/04/2010 | WO2010125714A1 Power amplifier |
| 11/04/2010 | WO2010090926A3 Power amplifier with reconfigurable direct current coupling |
| 11/04/2010 | US20100277237 Switchable power combiner |
| 11/04/2010 | US20100277236 Predistorter |
| 11/04/2010 | CA2759686A1 Power amplifier |
| 11/03/2010 | EP2246977A2 Wideband voltage translators |
| 11/03/2010 | EP2246976A1 Power amplification device and communication device |
| 11/03/2010 | EP2245735A2 System and method of reducing click and pop noise in audio playback devices |
| 11/03/2010 | EP1788700B1 Method for double sampling loop negative feedback and double sampling negative feedback amplifier |
| 11/03/2010 | EP1751851B1 Adaptive predistortion method and arrangement |
| 11/03/2010 | EP1671418B1 Composite power amplifier |
| 11/03/2010 | CN201623691U Voltage driving device and power amplification system of power amplifier |
| 11/03/2010 | CN201623690U TDD (Time Division Duplex) radio-frequency amplifier gate voltage control circuit |
| 11/03/2010 | CN1864116B Method and apparatus for compensating for temperature drift in semiconductor processes and circuitry |
| 11/02/2010 | US7827010 Device and process for examining the signals of systems releasing them during operation or in response to external excitation |
| 11/02/2010 | US7825734 Amplifier having an output protection, in particular operational amplifier for audio application |
| 11/02/2010 | US7825732 Compensation for amplifiers driving a capacitive load |
| 10/28/2010 | WO2010088130A3 Dynamic thermal management system and method |
| 10/28/2010 | US20100271126 Matched integrated electronic components |
| 10/28/2010 | US20100271125 Distortion compensation apparatus and method for detecting failure in the same |
| 10/28/2010 | US20100271124 Distortion Compensation Device |
| 10/28/2010 | US20100271123 Adaptive digital predistortion of complex modulated waveform using localized peak feedback from the output of a power amplifier |
| 10/28/2010 | US20100271120 Distributed threshold adjustment for high speed receivers |
| 10/27/2010 | EP2244380A1 Predistorter |
| 10/27/2010 | EP2244379A1 Method for preventing impacts by a power detector on a signal path of an RF circuit, device, power amplifier system, and network element thereof |
| 10/27/2010 | EP2244378A2 Amplifying circuit, AC signal amplifying circuit and input bias adjusting method |
| 10/27/2010 | EP2244377A2 Amplifying circuit and amplifying method |
| 10/27/2010 | EP2244376A1 Cascode CMOS RF power amplifier with programmable feedback cascode bias under multiple supply voltages |
| 10/27/2010 | EP2244366A1 Envelope tracking power supply circuit and high-frequency amplifier including envelope tracking power supply circuit |
| 10/27/2010 | EP2243268A1 Radiofrequency emission system |
| 10/27/2010 | EP2243217A2 Multi-linearity mode lna having a deboost current path |
| 10/27/2010 | EP2243216A2 Amplifier with dynamic bias |
| 10/27/2010 | CN201616810U 高抗干扰高通放大器 High noise immunity Qualcomm Amplifiers |
| 10/27/2010 | CN201616035U 一种增强型密勒补偿低压差线性稳压器 Miller compensation for an enhanced low-dropout linear regulator |
| 10/27/2010 | CN1881785B DC voltage bias circuit and its application in integrated circuit |
| 10/27/2010 | CN101873104A RF power amplifier using different supply voltages and operation method thereof |
| 10/27/2010 | CN101873103A Power amplifier circuit adopting isolator |
| 10/27/2010 | CN101872010A Big Dipper/GPS (Global Position System) signal power divider and manufacture method thereof and dual-system radio frequency receiving module |
| 10/26/2010 | US7822154 Signal, interference and noise power measurement |
| 10/26/2010 | US7821337 Power amplifier |
| 10/26/2010 | US7821335 Semiconductor integrated circuit with variable gain amplifier |
| 10/26/2010 | US7821334 Amplification circuit |
| 10/26/2010 | US7821333 High-voltage differential amplifier and method using low voltage amplifier and dynamic voltage selection |
| 10/21/2010 | WO2010120938A2 Low noise amplifier with combined input matching, balun, and transmit/receive switch |
| 10/21/2010 | WO2010120767A2 Active feed forward amplifier |
| 10/21/2010 | WO2010120762A2 Preselector amplifier |
| 10/21/2010 | WO2010120594A2 High-linearity low noise amplifier |
| 10/21/2010 | WO2010120562A2 Wideband jammer detector |
| 10/21/2010 | WO2010118645A1 Final three-way power synthesizing amplifier circuit for mobile communication base station system power amplifier |
| 10/21/2010 | US20100268078 Methods and systems for monitoring patients undergoing treatment for cancer |
| 10/21/2010 | US20100264988 Low noise cascode amplifier |
| 10/21/2010 | US20100264984 System and Method for Over-Voltage Protection of a Power Amplifier |
| 10/21/2010 | DE102004054586B4 Verfahren und Vorrichtung zur Verstärkung eines amplituden- und phasenmodulierten elektrischen Signals Method and apparatus for amplifying an amplitude and phase modulated electrical signal |
| 10/20/2010 | EP2241006A1 Improved filter for switched mode power supply |
| 10/20/2010 | EP2241005A1 Improved control loop for amplification stage |
| 10/20/2010 | EP2007008B1 Circuit and method for reducing noise |
| 10/20/2010 | CN201611872U 隔离放大电路 Isolation amplifier circuit |
| 10/20/2010 | CN201611871U 音频功率放大电路 Audio power amplifier circuit |
| 10/20/2010 | CN201611870U 电容负反馈形式的低噪声放大器 Capacitive negative feedback in the form of a low noise amplifier |
| 10/20/2010 | CN201611869U 防空载的放大电路 Amplification circuit contained air defense |
| 10/20/2010 | CN201611389U 高场核磁共振波谱仪x核通道宽带前置放大器 High-field NMR spectrometer x-core channel wideband preamplifiers |
| 10/20/2010 | CN101868919A Buffer and display device |
| 10/20/2010 | CN101868912A A composite amplifier, a radio terminal and a method for improving the efficiency of the composite amplifier |
| 10/20/2010 | CN101867284A Control method of fast tracking power supply, fast tracking power supply and system |
| 10/20/2010 | CN101222231B Decoding circuit, data drive and display device |