| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 04/24/2002 | CN1346554A In-line predistorter for linearization of electronic and optical signals |
| 04/24/2002 | CN1346538A Multistage amplifier |
| 04/24/2002 | CN1346537A Biasing arrangement for field effect transistors |
| 04/24/2002 | CN1346176A Bias circuit for RF power amplifier |
| 04/24/2002 | CN1083640C Amplifier circuit |
| 04/23/2002 | US6377784 High-efficiency modulation RF amplifier |
| 04/23/2002 | US6377629 Twisted pair communications line system |
| 04/23/2002 | US6377126 Current feedback amplification circuit and associated process |
| 04/23/2002 | US6377125 Distributed amplifier having separately biased sections |
| 04/23/2002 | US6377124 Biasing arrangement for field effect transistors |
| 04/23/2002 | US6377122 Differential line driver that includes an amplification stage |
| 04/23/2002 | US6377121 Dynamic cascoding technique for operational amplifiers |
| 04/23/2002 | US6377120 Regulated-cascode amplifier with clamping circuit |
| 04/23/2002 | US6377085 Precision bias for an transconductor |
| 04/18/2002 | WO2002031997A2 High frequency amplification circuit |
| 04/18/2002 | WO2002031972A2 Amplification circuit with improved linearity |
| 04/18/2002 | WO2002031969A2 Linear power amplifier bias circuit |
| 04/18/2002 | WO2002031968A1 High-frequency amplifier |
| 04/18/2002 | WO2002031967A2 Distributed circular geometry power amplifier architecture |
| 04/18/2002 | WO2002031966A2 Class e/f switching power amplifiers |
| 04/18/2002 | WO2002005419A3 Class d audio amplifier |
| 04/18/2002 | US20020044020 Amplifier circuit |
| 04/18/2002 | US20020044019 Operational amplifier |
| 04/18/2002 | US20020044018 RF Power detector |
| 04/18/2002 | US20020044017 High frequency power amplifier module and wireless communication apparatus |
| 04/18/2002 | US20020044015 Amplifier circuit and electronic apparatus using the same |
| 04/18/2002 | US20020044013 Signal compensator circuit and demodulator circuit |
| 04/18/2002 | US20020044009 Self-bias adjustment circuit |
| 04/18/2002 | US20020044008 Constant current driver circuit |
| 04/18/2002 | DE10051463A1 DC voltage signal generation and amplification circuit for radio receiver has difference amplifier stage in parallel with final amplifier stage, multiplier and adder |
| 04/18/2002 | DE10046640C1 Quiescent current compensation circuit has working point circuit for setting working point of mirror circuit for current mirroring of charging current flowing through charging capacitor |
| 04/17/2002 | EP1198080A2 Monolithic loss-of-signal detect circuitry |
| 04/17/2002 | EP1196987A1 Linearizer for microwave amplifier |
| 04/17/2002 | EP1196982A1 Universal switched power converter |
| 04/17/2002 | EP0935849A4 Low-impedance cmos output stage and method |
| 04/17/2002 | EP0791245B1 Driving stage |
| 04/17/2002 | CN1345122A Bidirectional amplifier used specially for railway train |
| 04/17/2002 | CN1345121A Method of raising quantizing precision of pulse width modulation |
| 04/17/2002 | CN1083172C Linear power amplifying device and method |
| 04/16/2002 | US6373340 High-efficiency audio power amplifier |
| 04/16/2002 | US6373339 Active bias network circuit for radio frequency amplifier |
| 04/16/2002 | US6373338 Differential current mirror system and methods |
| 04/16/2002 | US6373337 Differential amplifier |
| 04/16/2002 | US6373336 Method of attenuating zero crossing distortion and noise in an amplifier, an amplifier and uses of the method and the amplifier |
| 04/16/2002 | US6373335 Integrated audio amplifier |
| 04/16/2002 | US6373334 Real time correction of a digital PWM amplifier |
| 04/16/2002 | US6373331 Method and apparatus for reducing transistor amplifier hysteresis |
| 04/16/2002 | US6373320 Circuit configuration for operating point stabilization of a transistor |
| 04/16/2002 | US6373295 Rail-to-rail driver for use in a regulator, and method |
| 04/11/2002 | WO2002029971A1 Configurable power amplifier and bias control |
| 04/11/2002 | WO2002029970A2 Variable bias control for switch mode rf amplifier |
| 04/11/2002 | WO2002029969A2 Power control of switched-mode power amplifiers with one or more stages |
| 04/11/2002 | WO2002029823A2 Compact ultra-low noise high-bandwidth pixel amplifier for single-photon readout of photodetectors |
| 04/11/2002 | WO2002007307A3 Differential amplifiers having beta compensation biasing circuits therein |
| 04/11/2002 | WO2001058012A3 High-efficiency power modulators |
| 04/11/2002 | WO2001056171A3 Switch assembly with a multi-pole switch for combining amplified rf signals to a single rf signal |
| 04/11/2002 | US20020042176 Current source circuit |
| 04/11/2002 | US20020041675 Amplifier arrangement |
| 04/11/2002 | US20020041417 Burst mode optical receiver using multi-stage feedback |
| 04/11/2002 | US20020041212 Amplifier with suppression of harmonics |
| 04/11/2002 | US20020041211 System and method for linearizing vacuum electronic amplification |
| 04/11/2002 | US20020041209 Distortion compensation apparatus |
| 04/11/2002 | US20020041208 Signal distortion compensating apparatus and method |
| 04/11/2002 | US20020041207 Low noise amplification circuit of mobile communication terminal |
| 04/11/2002 | US20020041206 Variable gain amplifier |
| 04/11/2002 | US20020041197 Offsetting comparator device and comparator circuit |
| 04/10/2002 | EP1195913A1 Amplifier arrangement |
| 04/10/2002 | EP1195891A2 High order multipath compensated operational amplifier with reduced input referred offset |
| 04/10/2002 | EP1195890A2 High-output amplifier |
| 04/10/2002 | EP1195005A1 Device and method for predistorting a transmission signal to be transmitted via a nonlinear transmission path |
| 04/10/2002 | CN1344479A High efficiency audio frequency transmission channel |
| 04/10/2002 | CN1082776C Amplifier and portable telephone using same |
| 04/09/2002 | US6370066 Differential output circuit |
| 04/09/2002 | US6369743 Differential amplifier, comparator, and A/D converter |
| 04/09/2002 | US6369658 Single-ended to differential transconductor |
| 04/09/2002 | US6369653 Apparatus and methods for improved control of quiescent state of output transistors in a class AB amplifier |
| 04/09/2002 | US6369652 Differential amplifiers with current and resistance compensation elements for balanced output |
| 04/09/2002 | US6369651 Bidirectional direct current power conversion circuits and methods |
| 04/09/2002 | US6369649 Transmission power amplification method and apparatus |
| 04/09/2002 | US6369648 Linear traveling wave tube amplifier utilizing input drive limiter for optimization |
| 04/09/2002 | US6369641 Biasing circuits |
| 04/09/2002 | US6369638 Power drive circuit |
| 04/09/2002 | US6369511 Travelling-wave tube amplifier |
| 04/04/2002 | WO2002027943A2 Auto-calibration circuit to minimize input offset voltage in an integrated circuit analog input device |
| 04/04/2002 | WO2002027942A2 Input voltage offset calibration of an analog device using a microcontroller |
| 04/04/2002 | WO2002027923A2 High-swing transconductance amplifier for charge pump circuit |
| 04/04/2002 | WO2002027922A1 Bootstrapped dual-gate class e amplifier circuit |
| 04/04/2002 | WO2002027920A1 Cascode bootstrapped analog power amplifier circuit |
| 04/04/2002 | WO2002011280A8 Electronic circuit for converting a signal and amplifier incorporating same |
| 04/04/2002 | US20020039096 Driving apparatus and method of liquid crystal display apparatus |
| 04/04/2002 | US20020039049 Amplifying circuit |
| 04/04/2002 | US20020039048 Feedforward type linearizer |
| 04/04/2002 | US20020039047 Power amplifier with gain change compensation |
| 04/04/2002 | US20020039038 Distributed high frequency circuit equipped with bias bypass line to reduce chip area |
| 04/04/2002 | US20020039035 Logic circuit |
| 04/04/2002 | DE10045720A1 Differential line driver circuit has feedback resistances between each output of differential amplifier and corresponding and opposing inputs |
| 04/04/2002 | DE10044452A1 Verstärkerschaltung Amplifier circuit |
| 04/03/2002 | EP1193867A2 Digital amplifier |
| 04/03/2002 | EP1193865A2 Distortion compensation apparatus and distortion compensation method |
| 04/03/2002 | EP1193864A2 Distortion compensating device and method for compensating distortion |