| 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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| 06/21/2006 | EP1672801A1 Digital to analog converter |
| 06/21/2006 | EP1672784A1 Power amplifier |
| 06/21/2006 | EP1672783A1 A transmitter with an envelope tracking power amplifier utilizing digital predistortion of the signal envelope |
| 06/21/2006 | EP1672782A1 Amplifier circuit having improved linearity and frequency band using a MGTR |
| 06/21/2006 | EP1672781A1 Method and apparatus for compensating amplifier output for temperature and process variations |
| 06/21/2006 | EP1671420A2 Power conversion system |
| 06/21/2006 | EP1671418A1 Composite power amplifier |
| 06/21/2006 | EP1671197A2 Hybrid switched mode/linear power amplifier power supply for use in polar transmitter |
| 06/21/2006 | EP1590893A4 Feed forward amplifier system employing self-generating alignment lists and adaptive controller |
| 06/21/2006 | EP1446872B1 Non-linear modeling method |
| 06/21/2006 | EP1245079B1 Voltage level translation circuits |
| 06/21/2006 | EP0850509B9 Linearized digital automatic gain control |
| 06/21/2006 | CN2790034Y Power amplifying circuit with adjustable output power |
| 06/21/2006 | CN2790032Y Digital control amplifier with digital control power source adapted to processing power frequency and medium frequency signals |
| 06/21/2006 | CN2790031Y Low-noise wideband low-distortion electronic amplifier |
| 06/21/2006 | CN2790030Y Ultralow noise amplifier |
| 06/21/2006 | CN1792031A Dynamic method for limiting the reverse base-emitter voltage |
| 06/21/2006 | CN1790925A Linear power amplification distortion counteracting method |
| 06/21/2006 | CN1790921A Linearization device and method for base station |
| 06/21/2006 | CN1790920A A transmitter with an envelope tracking power amplifier utilizing digital predistortion of the signal envelope |
| 06/21/2006 | CN1790897A Method for adjusting power amplification efficiency |
| 06/21/2006 | CN1790896A Radio-frequency power amplifier modeling method based on memory effect |
| 06/21/2006 | CN1790895A Method and apparatus for compensating amplifier output for temperature and process variations |
| 06/21/2006 | CN1790894A Differential superimposed RF CMOS low noise amplifier |
| 06/20/2006 | US7064615 Method and apparatus for doherty amplifier biasing |
| 06/20/2006 | US7064613 Amplifier bias system and method |
| 06/20/2006 | US7064612 High frequency power amplification electric part and wireless communication system |
| 06/20/2006 | US7064611 IDSS RF amplifier |
| 06/20/2006 | US7064608 Feed-forward-back suppressed noise circuits |
| 06/20/2006 | US7064607 Bias system and method |
| 06/20/2006 | US7064606 High efficiency amplifier and method of designing same |
| 06/20/2006 | US7064605 Circuit and method of establishing DC bias levels in an RF power amplifier |
| 06/20/2006 | US7064604 Amplifier switch |
| 06/20/2006 | US7064602 Dynamic gain compensation and calibration |
| 06/15/2006 | WO2006063024A1 Current controlled gate driver for power switches |
| 06/15/2006 | WO2006062831A2 Voltage clamp for improved transient performance of a collector voltage controlled power amplifier |
| 06/15/2006 | WO2006060975A1 Method for controlling an eer power amplifier for digital transmission |
| 06/15/2006 | WO2005086682A3 Apparatus and method for dynamic dc offset detection and cancellation |
| 06/15/2006 | US20060128325 Low noise switching voltage regulator |
| 06/15/2006 | US20060126864 Circuit and method for eliminating pop noise in digital audio amplifier using dual power supply |
| 06/15/2006 | US20060126754 Efficient modulation of rf signals |
| 06/15/2006 | US20060125567 Amplifier circuit |
| 06/15/2006 | US20060125560 Adaptive predistortion for a transmit system with gain, phase and delay adjustments |
| 06/15/2006 | US20060125559 Method of enhancing power amplifier linearity |
| 06/15/2006 | US20060125557 Impedance matched variable gain low noise amplifier using shunt feed-back |
| 06/15/2006 | US20060125556 Signal amplifier and integrated circuit |
| 06/15/2006 | US20060125555 Digital amplifier |
| 06/14/2006 | EP1670137A1 High frequency amplifier |
| 06/14/2006 | EP1398886B1 Dynamic bias for rf power amplifiers |
| 06/14/2006 | EP1384286B1 Inverted-f ferroelectric antenna |
| 06/14/2006 | EP1252718B1 Ingrated rf power sensor that compensates for bias changes |
| 06/14/2006 | EP1242853B1 Electronic circuit |
| 06/14/2006 | EP0908006B1 Bias circuit for a power amplifier |
| 06/14/2006 | DE102004049421A1 Measurement arrangement e.g. for intermodulation analysis, has nonlinear electronic element or amplifier and active source and load pulling both in high frequency range source |
| 06/14/2006 | CN2788450Y 偏转扫描放大器 Scanning deflection amplifiers |
| 06/14/2006 | CN2788449Y Radio frequency power amplifier biasing circuit |
| 06/14/2006 | CN1788413A 功率放大器预失真 Power amplifier predistortion |
| 06/14/2006 | CN1788412A Self adaptable bias circuit for enabling dynamic control of quiescent current in a linear power amplifier |
| 06/14/2006 | CN1787364A Low noise amplifier with low noise and high gain |
| 06/13/2006 | US7062417 Multivariate statistical process monitors |
| 06/13/2006 | US7062336 Time-division method for playing multi-channel voice signals |
| 06/13/2006 | US7062236 Transmitter circuits |
| 06/13/2006 | US7062234 Pre-distortion cross-cancellation for linearizing power amplifiers |
| 06/13/2006 | US7061989 Fully digital transmitter including a digital band-pass sigma-delta modulator |
| 06/13/2006 | US7061740 System and method for protecting an audio amplifier output stage power transistor |
| 06/13/2006 | US7061329 Semiconductor device having balanced circuit for use in high frequency band |
| 06/13/2006 | US7061324 Use of analog-valued floating-gate transistors for parallel and serial signal processing |
| 06/13/2006 | US7061317 Even order distortion elimination in push-pull or differential amplifiers and circuits |
| 06/13/2006 | US7061315 Auxiliary amplifier network |
| 06/13/2006 | US7061314 High linearity doherty communication amplifier with phase control |
| 06/13/2006 | US7061313 Dual feedback linear amplifier |
| 06/13/2006 | US7061312 Systems and methods for providing multi channel pulse width modulated audio with staggered outputs |
| 06/13/2006 | US7061309 Transconductance-adjusting circuit |
| 06/13/2006 | US7061291 Linear voltage tracking amplifier for negative supply slew rate control |
| 06/08/2006 | WO2006060114A1 Amplifier gain and phase stabilizer |
| 06/08/2006 | WO2006059372A1 Signal take-out circuit and distortion compensation amplifier comprising it |
| 06/08/2006 | US20060122813 Phase based system and method for determining signal consistency |
| 06/08/2006 | US20060119436 High linearity digital variable gain amplifier |
| 06/08/2006 | US20060119435 Triple cascode power amplifier of inner parallel configuration with dynamic gate bias technique |
| 06/08/2006 | US20060119434 Voltage level detector for power amplifier protection control |
| 06/08/2006 | US20060119427 Data signal amplifier and processor with multiple signal gains for increased dynamic signal range |
| 06/08/2006 | US20060119425 Voltage clamp for improved transient performance of a collector voltage controlled power amplifier |
| 06/08/2006 | US20060119424 Offset compensation circuit for a monitoring photodiode |
| 06/08/2006 | DE102005014946A1 Offset-Kompensationsschaltung für eine Überwachungs-Photodiode Offset compensation circuit for a monitor photodiode |
| 06/08/2006 | DE102004058595A1 Treiberschaltung mit selbständiger Offsetkompensation eines Verstärkers und Verfahren zur Offsetkompensation eines Verstärkers einer Treiberschaltung Driver circuit with independent offset compensation of an amplifier and method for offset compensation of an amplifier of a driver circuit |
| 06/08/2006 | DE102004055934A1 Device for base point correction of envelope of high frequency (HF) pulse, containing input and output interfaces, at least one correction point memory and base point memory and specified logic circuit, for signal processor |
| 06/07/2006 | EP1667331A1 Amplifier circuit and amplifying method |
| 06/07/2006 | EP1667330A1 Transmission device, transmission power control method, and radio communication device |
| 06/07/2006 | EP1667320A1 Amplifier |
| 06/07/2006 | EP1665699A2 Dual mode multi-slot egprs transmitter |
| 06/07/2006 | EP1665523A1 Monolithic array amplifier with periodic bias-line bypassing structure and method |
| 06/07/2006 | EP1665522A1 Digital predistortion for power amplifier |
| 06/07/2006 | EP1665521A2 Differential amplifier arrangement |
| 06/07/2006 | EP1665520A1 An adaptive wideband digital amplifier for linearly modulated signal amplification and transmission |
| 06/07/2006 | EP1665519A2 Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
| 06/07/2006 | EP1664965A2 Quiescent current control circuit for high-power amplifiers |
| 06/07/2006 | EP1428313A4 A system and method for minimizing dissipation in rf power amplifiers |
| 06/07/2006 | EP1371202B1 Predistortion for correction of non-linearities and group delay in satellite communications |
| 06/07/2006 | EP1060574B1 A differential line driver |
| 06/07/2006 | CN1784879A Arrangement and method for the digital pre-distortion of a complex baseband input signal |