| 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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| 12/05/2002 | US20020180547 Efficient pulse amplitude modulation transmit modulation |
| 12/05/2002 | US20020180534 Switchless multi-resonant, multi-band power amplifier |
| 12/05/2002 | US20020180533 Power amplifier embedded cell bias detection, methods of detecting bias in power amplifiers and systems utilizing embedded cell bias detection |
| 12/05/2002 | US20020180532 Power-shifting rf amplifiers |
| 12/05/2002 | US20020180526 Bipolar emitter couple pair transconductor for high speed operational amplifiers |
| 12/05/2002 | US20020180523 Distortion canceling circuit |
| 12/05/2002 | US20020180522 Transmitter with a sliding compression point |
| 12/05/2002 | US20020180518 Switching amplifier having digital correction and method therefor |
| 12/05/2002 | US20020180489 Low voltage current sense amplifier circuit |
| 12/05/2002 | US20020180482 High speed output buffers using voltage followers |
| 12/05/2002 | DE10211891A1 Intgrierte Halbleiterschaltung Intgrierte semiconductor circuit |
| 12/05/2002 | CA2447888A1 Model for spectral and chromatographic data |
| 12/04/2002 | EP1263129A1 DC feedback control circuit |
| 12/04/2002 | EP1262020A2 High sheet mos resistor method and apparatus |
| 12/04/2002 | EP1262018A2 High-efficiency power modulators |
| 12/04/2002 | EP1262017A1 Spectral distortion monitor for controlling pre-distortion and feed-forward linearization of rf power amplifier |
| 12/04/2002 | CN1383261A Pre-stabilized power supply equipment for final-stage power amplifier |
| 12/04/2002 | CN1095614C Amplifier noise reducing method and ultralow-noise pre-amplifier |
| 12/03/2002 | US6489927 System and technique for mounting a radar system on a vehicle |
| 12/03/2002 | US6489862 Method for reducing noise generated in a power amplifier |
| 12/03/2002 | US6489848 Linear and multi-sin h transconductance circuits |
| 12/03/2002 | US6489846 Distortion compensating device and distortion compensating method |
| 12/03/2002 | US6489844 Feed-forward amplifier and controller of the same |
| 12/03/2002 | US6489843 Power amplifier and communication unit |
| 12/03/2002 | US6489840 Power amplification equipment |
| 11/28/2002 | WO2002096175A1 Portable power amplifier |
| 11/28/2002 | WO2002095934A1 A compensation method in a class-g amplifier output stage |
| 11/28/2002 | WO2002095933A1 Composite amplifier with optimized linearity and efficiency |
| 11/28/2002 | WO2002095932A1 Digitally implemented predistorter control mechanism for linearizing high efficiency rf power amplifiers |
| 11/28/2002 | US20020177424 Predistortion linearizer and predistortion distortion compensation method, program, and medium |
| 11/28/2002 | US20020176197 Method and apparatus for compensation of second order distortion |
| 11/28/2002 | US20020175878 Tunable matching circuit |
| 11/28/2002 | US20020175863 Ferroelectric antenna and method for tuning same |
| 11/28/2002 | US20020175766 Driver circuit apparatus, measuring circuit apparatus and amplifier circuit apparatus therefor |
| 11/28/2002 | US20020175764 Power amplifier circuit, control method for power amplifier circuit, and portable terminal apparatus for mobile communication |
| 11/28/2002 | US20020175762 Amplifier circuit |
| 11/28/2002 | US20020175760 Compensation method in a class-G amplifier output stage |
| 11/28/2002 | US20020175753 Stabilized high band width differential emitter follower amplifier |
| 11/28/2002 | US20020175749 Differential signal transfer circuit |
| 11/28/2002 | US20020175736 Electronic isolator |
| 11/28/2002 | US20020175735 Bias method and circuit for distortion reduction |
| 11/28/2002 | US20020175733 Off-leak current cancel circuit |
| 11/28/2002 | DE10121167A1 Vorrichtung zum Steuern eines Ruhestroms für einen Verstärkertransistor und Verstärkerschaltung An apparatus for controlling a quiescent current for an amplifier transistor and amplifier circuit |
| 11/27/2002 | EP1261083A1 Driver circuit apparatus, measuring circuit apparatus and amplifier circuit apparatus therefor |
| 11/27/2002 | EP1260024A2 Apparatus for linear transmitter with improved loop gain stabilization |
| 11/27/2002 | EP1260018A1 Emitter follower with constant collector current biasing means |
| 11/27/2002 | EP1260017A2 Method and transmission circuit for producing a transmission signal |
| 11/27/2002 | EP1260016A1 Method and transmission circuit for generating a transmission signal |
| 11/27/2002 | EP1260015A1 Variable transconductance variable gain amplifier utilizing a degenerated differential pair |
| 11/27/2002 | CN2523114Y Audio-frequency power amplifier |
| 11/27/2002 | CN2523113Y Digital constant-voltage power amplifier |
| 11/27/2002 | CN1382321A Impedance adapting amplifier device for low frequency with electronic tubes insertible on line of path of low frequency signal |
| 11/27/2002 | CN1382000A 功率控制器 Power Controllers |
| 11/27/2002 | CN1381950A High-frequency electric power amplifier |
| 11/27/2002 | CN1381947A 半导体集成电路 The semiconductor integrated circuit |
| 11/27/2002 | CN1095243C Display driving apapratus having variable driving ability |
| 11/26/2002 | US6487523 Model for spectral and chromatographic data |
| 11/26/2002 | US6486821 Amplifier for improving open-loop gain and bandwidth in a switched capacitor system |
| 11/26/2002 | US6486820 Pipeline analog-to-digital converter with common mode following reference generator |
| 11/26/2002 | US6486740 Method and system for dynamic compensation |
| 11/26/2002 | US6486739 Amplifier with self-bias boosting using an enhanced wilson current mirror biasing scheme |
| 11/26/2002 | US6486734 Amplifier apparatus |
| 11/26/2002 | US6486733 Method and apparatus for high efficiency power amplification |
| 11/26/2002 | US6486724 FET bias circuit |
| 11/26/2002 | CA2119867C Apparatus for compensating of phase rotation in a final amplifier stage |
| 11/21/2002 | WO2002093979A2 Dynamic allocation of power supply |
| 11/21/2002 | WO2002023718A8 Self-tuned millimeter wave rf transceiver module |
| 11/21/2002 | WO2001095485A3 Radio frequency device with fast charging of an input capacitance |
| 11/21/2002 | US20020173285 Pre-amplification software linearizer |
| 11/21/2002 | US20020172380 Impedance adapter preamplifier device for electronic tube audio frequencies able to be inserted on line on the path of the low frequency signal |
| 11/21/2002 | US20020172296 Pre-distortion of input signals to form constant envelope signal outputs |
| 11/21/2002 | US20020172059 Bias control circuit |
| 11/21/2002 | US20020171494 Miller effect-based circuit for splitting poles |
| 11/21/2002 | US20020171493 Variable gain amplifier |
| 11/21/2002 | US20020171492 Variable gain low-noise amplifier and method |
| 11/21/2002 | US20020171490 Amplifier |
| 11/21/2002 | US20020171488 Amplifier |
| 11/21/2002 | US20020171487 Reconfigurable dual-mode multiple stage operational amplifiers |
| 11/21/2002 | US20020171485 Digitally implemented predistorter control mechanism for linearizing high efficiency RF power amplifiers |
| 11/21/2002 | US20020171484 Automatic optimization of linearity for envelope feedback RF amplifier linearization |
| 11/21/2002 | US20020171483 High-frequency amplifier |
| 11/21/2002 | US20020171481 High-frequency amplifier circuit and radio communication apparatus using same |
| 11/21/2002 | US20020171480 Self oscillating power amplifier |
| 11/21/2002 | US20020171479 Method to dynamically control the quiescent current of an operational amplifier arrangement and operational amplifier arrangement performing this method |
| 11/21/2002 | US20020171478 Operational amplifier arrangement including a quiescent current control circuit |
| 11/21/2002 | US20020171477 High-frequency amplifier, feed-forward amplifier and distortion compensating amplifier |
| 11/21/2002 | US20020171476 Negative feedback amplifier and method of controlling loop gain thereof |
| 11/21/2002 | US20020171475 Method and systems for power amplifying of signals |
| 11/21/2002 | US20020171474 Offset control of an operational amplifier |
| 11/21/2002 | US20020171465 Level shift circuit |
| 11/21/2002 | DE10121168A1 Vorrichtung zum Steuern eines Ruhestroms für einen Verstärkertransistor und Verstärkerschaltung An apparatus for controlling a quiescent current for an amplifier transistor and amplifier circuit |
| 11/20/2002 | EP1258984A1 Differential amplifier with an unlocking apparatus |
| 11/20/2002 | EP1258983A1 Offset control of an operational amplifier |
| 11/20/2002 | EP1258982A1 Operational amplifier arrangement including a quiescent current control circuit |
| 11/20/2002 | EP1258981A1 Operational amplifier arrangement including a quiescent current control circuit |
| 11/20/2002 | EP1258081A1 An analog reflective predistorter for power amplifiers |
| 11/20/2002 | EP1258080A1 System for reducing adjacent-channel interference by pre-linearization and pre-distortion |
| 11/20/2002 | EP1258079A1 System for pre-distorting an input signal for a power amplifier using non-orthogonal coordinates |
| 11/20/2002 | EP1258078A1 System for estimating a non-linear characteristic of an amplifier |
| 11/20/2002 | CN2521825Y Digital audio-frequency amplifier |