| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 12/19/2007 | EP1314256B1 Circuits and methods for reducing interference from switched mode circuits |
| 12/19/2007 | EP1293037B1 Silent start |
| 12/19/2007 | EP1190483B1 Load compensation technique for reactive impedance transformation amplifier output stage |
| 12/19/2007 | CN200994121Y Dual-circuit AV and HIFI front-rear stage integrated power amplifier |
| 12/19/2007 | CN200994120Y Multi-circuit high fidelity front-rear stage integrated power amplifier |
| 12/19/2007 | CN200994119Y Grid voltage adaptive compensating device |
| 12/19/2007 | CN101091308A Apparatus for providing amplification with multi-feedback path |
| 12/19/2007 | CN101091307A 开关放大器 Switching Amplifier |
| 12/19/2007 | CN101091306A Transformer circuit |
| 12/19/2007 | CN101090258A Adapter power amplifier |
| 12/19/2007 | CN101090257A Circuit for reducing distortion of class d amplifier |
| 12/19/2007 | CN101090256A High-impedance level-shifting amplifier |
| 12/19/2007 | CN100356689C Pulse amplitude modulating method and circuit for improving D class audio amplifier property |
| 12/18/2007 | US7310382 Linearized switch-based power amplifier |
| 12/18/2007 | US7310019 High frequency power amplifier |
| 12/18/2007 | US7310018 Method and apparatus providing input buffer design using common-mode feedback |
| 12/18/2007 | US7310017 Operational amplifier circuit |
| 12/18/2007 | US7310015 Temperature-compensated circuit for power amplifier using diode voltage control |
| 12/18/2007 | US7309998 Process monitor for monitoring an integrated circuit chip |
| 12/18/2007 | US7309853 Method for controlling a bias voltage applied to an avalanche photodiode |
| 12/13/2007 | WO2007142568A1 High efficiency linear power amplifiers with load compensation |
| 12/13/2007 | WO2007121112A3 Systems, methods and devices for dual closed loop modulation controller for nonlinear rf amplifier |
| 12/13/2007 | WO2007107962A3 Differential amplifier with input stage inverting common-mode signals |
| 12/13/2007 | WO2006107815A3 Gate driver for class d audio amplifier with adaptive dv/dt control |
| 12/13/2007 | US20070285295 Signal Processing Device and Method, Signal Processing Program, and Recording Medium Where the Program is Recorded |
| 12/13/2007 | US20070285175 Triple cascode power amplifier of inner parallel configuration with dynamic gate bias technique |
| 12/13/2007 | US20070285174 High-frequency circuit of reduced circuit scale |
| 12/13/2007 | US20070285173 Frequency compensating circuit including a current-mode active capacitor and control circuit |
| 12/13/2007 | US20070285172 Fast bias for power amplifier gating in a TDMA application |
| 12/13/2007 | US20070285171 High-speed CMOS current mirror |
| 12/13/2007 | US20070285169 Transmitter and control method for same |
| 12/13/2007 | US20070285168 Solid-state rf power amplifier for radio transmitters |
| 12/13/2007 | US20070285167 Class ab amplifier circuit with combined quiescent current and common mode control |
| 12/13/2007 | US20070285166 Fully differential sensing apparatus and input common-mode feedback circuit thereof |
| 12/13/2007 | US20070285165 Low voltage CMOS differential amplifier |
| 12/13/2007 | US20070285164 Operational amplifier |
| 12/13/2007 | US20070285163 Method of amplifying a digital signal and device therefor |
| 12/13/2007 | US20070285158 Amplifier unit and method of detecting failure in the same |
| 12/13/2007 | US20070285156 Expanded Performance and Functions for Vacuum Tube Replacement Devices |
| 12/12/2007 | EP1865597A1 Amplifier apparatus |
| 12/12/2007 | EP1864553A1 Offset correction circuit for voltage-controlled current source |
| 12/12/2007 | EP1609241B1 Systems and methods for implementing a sample rate converter using hardware and software to maximize speed and flexibility |
| 12/12/2007 | EP1374396A4 Variable gain low-noise amplifier for a wireless terminal |
| 12/12/2007 | EP1325555B1 Configurable power amplifier and bias control |
| 12/12/2007 | EP1317063B1 High-frequency amplifier |
| 12/12/2007 | EP1192712B1 Offset and non-linearity compensated amplifier and method |
| 12/12/2007 | CN100355207C Gate driver with level shift between static wells with no power supply |
| 12/12/2007 | CN100355203C High-frequency amplifier and high-frequency mixer |
| 12/12/2007 | CN100355193C 半导体集成电路器件 The semiconductor integrated circuit device |
| 12/11/2007 | US7307479 Handset radiofrequency front end module in fine pitch quad flat no lead (FQFP-N) package |
| 12/11/2007 | US7307477 Apparatus and method for affecting operation of a signal treating device |
| 12/11/2007 | US7307476 Method for nullifying temperature dependence and circuit therefor |
| 12/11/2007 | US7307475 RF generator with voltage regulator |
| 12/11/2007 | US7307473 Distortion compensating and power amplifying apparatus |
| 12/11/2007 | US7307463 Source follower, voltage follower, and semiconductor device |
| 12/06/2007 | WO2007140392A2 Methods and apparatus to provide slew enhancement for low power amplifiers |
| 12/06/2007 | WO2007138791A1 Analog insulation/multiplexer |
| 12/06/2007 | WO2007078519A3 Fully differential amplifier with continuous-time offset reduction |
| 12/06/2007 | US20070279133 Solid state microwave power amplifier |
| 12/06/2007 | US20070279132 Apparatus for biasing a complementary metal-oxide semiconductor differential amplifier |
| 12/06/2007 | US20070279131 Variable gain amplifier and differential amplifier |
| 12/06/2007 | US20070279130 High speed amplifier with controllable amplification and output impedance and comparator using the same |
| 12/06/2007 | US20070279129 Methods and apparatus to provide slew enhancement for low power amplifiers |
| 12/06/2007 | US20070279127 High Linearity Modulation System and Modulation Method |
| 12/06/2007 | US20070279126 common-mode technique for a digital i/p class d loop |
| 12/06/2007 | US20070279101 Signal Output Circuit, Audio Signal Output Apparatus Using The Same, And Electronic Device |
| 12/06/2007 | US20070279058 Magnetic resonance imaging system with a class-e radio frequency amplifier |
| 12/06/2007 | US20070278388 Semiconductor device and electronic device using the same |
| 12/06/2007 | DE102007008921A1 Biasschaltung für Leistungsverstärker mit geringer Verschlechterung der Verzerrungseigenschaften Bias circuit for power amplifier with little degradation in distortion characteristics |
| 12/05/2007 | EP1863183A1 Transmitting apparatus, communication device, and mobile wireless unit |
| 12/05/2007 | EP1863171A1 Operational amplifier of class AB |
| 12/05/2007 | EP1861923A2 Bias control for reducing amplifier power consumption and maintaining linearity |
| 12/05/2007 | EP1861920A2 High power doherty amplifier using multi-stage modules |
| 12/05/2007 | EP1861919A1 Amplifier circuit |
| 12/05/2007 | EP1310041B1 Digital class-d audio amplifier |
| 12/05/2007 | CN200987145Y Audio power amplifier |
| 12/05/2007 | CN101083453A Self-startup low voltage operating current mirror circuit |
| 12/05/2007 | CN101083451A Digital auto-calibration operational amplification offset voltage circuit and method thereof |
| 12/05/2007 | CN100353662C High duty cycle offset compensation for operational amplifiers |
| 12/05/2007 | CN100353657C Differential current output unit |
| 12/05/2007 | CN100353544C 功率放大器器件 PA devices |
| 12/05/2007 | CN100353439C Method and apparatus for compensation of second order distortion |
| 12/04/2007 | US7305568 Backup system for multi-source audio apparatus |
| 12/04/2007 | US7305190 Optical dispersion correction in transimpedance amplifiers |
| 12/04/2007 | US7304549 Method and apparatus for dual use of singly and doubly terminated networks |
| 12/04/2007 | US7304543 Burst-mode TIA (trans-impedance amplifier) |
| 12/04/2007 | US7304542 Photo-receiving amplifier element, optical pickup unit, and optical disk device |
| 12/04/2007 | US7304541 Temperature compensated voltage regulator integrated with MMIC's |
| 12/04/2007 | US7304538 Accurate quiescent current control scheme in floating controlled class AB amplifier |
| 12/04/2007 | US7304537 Power amplification apparatus of a portable terminal |
| 12/04/2007 | US7304535 Balanced amplifier |
| 11/29/2007 | WO2007136920A2 High efficiency converter providing switching amplifier bias |
| 11/29/2007 | WO2007136919A2 Distributed class g type amplifier switching method |
| 11/29/2007 | WO2007136690A2 Circuitry for adaptively generating and using a reference voltage |
| 11/29/2007 | WO2007135961A1 Transmission modulating device |
| 11/29/2007 | WO2007135139A1 Circuit for limiting the output swing of an amplifier |
| 11/29/2007 | WO2007134615A1 A device with shared power amplifiers, for use in a wireless telecommunications system |
| 11/29/2007 | WO2007042507A3 Systems and methods for transferring single-ended burst signal onto differential lines, especially for use in burst-mode receiver |
| 11/29/2007 | WO2006045147A3 Low distortion class-d amplifier |
| 11/29/2007 | US20070273449 Power Amplifier with Stabilising Network |