| 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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| 03/25/2004 | US20040060026 Thermal protection system for an output stage of an amplifier |
| 03/25/2004 | US20040057173 Semiconductor integrated circuit device |
| 03/25/2004 | US20040056733 Self-tuned matching network for high efficient power amplifiers |
| 03/25/2004 | US20040056730 Tunable voltage controlled oscillator |
| 03/25/2004 | US20040056723 High-frequency power amplifier |
| 03/25/2004 | US20040056722 Ultra broadband low noise amplifier with matched reactive input impedance |
| 03/25/2004 | US20040056721 Bias circuit with controlled temperature dependence |
| 03/25/2004 | US20040056717 Current-controlled CMOS wideband data amplifier circuits |
| 03/25/2004 | US20040056716 High-speed output transconductance amplifier capable of operating at different voltage levels |
| 03/25/2004 | US20040056715 Common-mode and differential-mode compensation for operational amplifier circuits |
| 03/25/2004 | US20040056714 Multi-level output circuit |
| 03/25/2004 | US20040056713 Operational amplifier arrangement |
| 03/25/2004 | US20040056712 Variable gain low noise amplifier |
| 03/25/2004 | US20040056711 Efficient power control of a power amplifier by periphery switching |
| 03/25/2004 | DE10240140A1 Kommunikationsanordnung und Übertragungseinheit zur Informationsübermittlung über zumindest eine Übertragungsleitung sowie eine an die Übertragungseinheit anschließbare Schaltungsanordnung Communication system and transmission unit for transmitting information via at least one transmission line and a transmission unit can be connected to the circuitry |
| 03/24/2004 | EP1401096A2 Thermal protection system for an output stage of an amplifier |
| 03/24/2004 | EP1401095A1 Operational amplifier arrangement |
| 03/24/2004 | EP1401047A1 Self-tuned matching network for high efficient power amplifiers |
| 03/24/2004 | EP1400012A2 Distributed circular geometry power amplifier architecture |
| 03/24/2004 | EP1400011A2 A transmitter control circuit |
| 03/24/2004 | EP1400010A1 Rf transmitter employing linear and non-linear pre-correctors |
| 03/24/2004 | EP1399792A1 Self-bootstrapping transducer interface |
| 03/24/2004 | EP1399746A1 Image sensor utilizing a low fpn high gain capacitive transimpedance amplifier |
| 03/24/2004 | EP1330871B1 Multiple-voltage supply power amplifier with dynamic headroom control |
| 03/24/2004 | EP1328981A4 Universal temperature compensation application specific integrated circuit |
| 03/24/2004 | EP1145447B1 Radio devices including power amplifier control circuits with hardware lockouts |
| 03/24/2004 | CN1484376A Distortion compensator |
| 03/24/2004 | CN1484307A 输入保护电路 Input protection circuit |
| 03/23/2004 | US6711217 Apparatus and method for linearized power amplification |
| 03/23/2004 | US6710915 Light amplifier device and optical pickup device employing it |
| 03/23/2004 | US6710733 Comparator circuit |
| 03/23/2004 | US6710662 Power amplifier with improved linearity and reduced transistor stacks |
| 03/23/2004 | US6710661 Low input impedance with amplifier |
| 03/23/2004 | US6710655 Bipolar emitter couple pair transconductor for high speed operational amplifiers |
| 03/23/2004 | US6710652 Feedforward amplifier |
| 03/23/2004 | US6710649 Power amplifier module |
| 03/23/2004 | US6710648 Amplifying circuit capable of limiting amplitude of output signal supplied to a speaker |
| 03/23/2004 | US6710647 Method and circuit for distortion compensation and output control |
| 03/23/2004 | US6710646 Cuk style inverter with hysteretic control |
| 03/23/2004 | US6710632 Drive circuit |
| 03/18/2004 | WO2004023776A2 Communication arrangement and transmission unit for information transfer by means of at least one transmission line and a circuit arrangement for connection to the transmission unit |
| 03/18/2004 | WO2004023676A1 Signal, interference and noise power measurement |
| 03/18/2004 | WO2004023650A1 Push-pull amplifier and frequency conversion circuit |
| 03/18/2004 | WO2004023648A2 Amplifier power control circuit |
| 03/18/2004 | WO2004023647A1 Composite power amplifier |
| 03/18/2004 | WO2004023646A1 Class-f doherty amplifier |
| 03/18/2004 | WO2004023645A2 Thermal feedback for switch mode amplification |
| 03/18/2004 | WO2004023631A2 Power supply based audio compression for digital audio amplifier |
| 03/18/2004 | WO2004002120A3 Improvements in or relating to battery powered devices |
| 03/18/2004 | US20040053580 Transmitting device |
| 03/18/2004 | US20040052313 Apparatus and method for improving an output signal from a nonlinear device through dynamic signal pre-distortion based upon lagrange interpolation |
| 03/18/2004 | US20040051589 High-frequency power amplifier |
| 03/18/2004 | US20040051584 Impedance matching for a power amplifier system |
| 03/18/2004 | US20040051583 Transmitter including a composite amplifier |
| 03/18/2004 | US20040051516 Integrated circuit with automatic polarity detection and configuration |
| 03/18/2004 | US20040051389 Switched supply for operational amplifier |
| 03/17/2004 | EP1398886A2 Dynamic bias for rf power amplifiers |
| 03/17/2004 | EP1397852A2 Electronic isolator |
| 03/17/2004 | EP1258078B1 System for estimating a non-linear characteristic of an amplifier |
| 03/17/2004 | EP1025637B1 Adaptation method and amplifier arrangement |
| 03/17/2004 | EP0920730B1 Amplifier suitable for cable-network applications |
| 03/17/2004 | EP0908003B1 Temperature compensated amplifier |
| 03/17/2004 | CN1483242A Feedforward amplifier loop control using if sigal processing |
| 03/17/2004 | CN1483239A Amplifier circuit for am broadcasting |
| 03/17/2004 | CN1482736A Gain amplifier circuit that minimizes the miller effect |
| 03/17/2004 | CN1142625C Method of attenuating zero crossing distortion and noise in amplifier, and amplifier |
| 03/16/2004 | US6708022 Power amplification system and mobile radio communication terminal |
| 03/16/2004 | US6707419 Radar transmitter circuitry and techniques |
| 03/16/2004 | US6707405 Integrated analog multiplexer |
| 03/16/2004 | US6707341 Semiconductor device with bipolar transistor device |
| 03/16/2004 | US6707340 Compensation technique and method for transconductance amplifier |
| 03/16/2004 | US6707338 Control scheme for distortion reduction |
| 03/16/2004 | US6707336 Operational amplifier with chopped input transistor pair |
| 03/16/2004 | US6707333 Bias circuit |
| 03/16/2004 | US6707322 Transconductor having structure of crossing pairs |
| 03/16/2004 | US6707102 Minimized increase in input and output capacitances, reduced feedback capacitance ascribed to shield conductive film and resistance of gate electrode, improved drain breakdown voltage and current capacitance, suppressed hot electron degradation |
| 03/16/2004 | CA2214124C Out-of-band compensation for non-linear device |
| 03/11/2004 | WO2004021561A1 Amplification circuit |
| 03/11/2004 | WO2003063246A3 Rf amplifier |
| 03/11/2004 | US20040047432 Nonlinear distortion compensating circuit |
| 03/11/2004 | US20040047096 Transient protection circuit of darlington amplifier |
| 03/11/2004 | US20040046610 Method for reducing output noise of a power amplifier |
| 03/11/2004 | US20040046609 Active current bias network for compensating hot-carrier injection induced bias drift |
| 03/11/2004 | US20040046599 Bias circuit and semiconductor device |
| 03/11/2004 | US20040046593 Circuit for low noise, fully differential amplication |
| 03/10/2004 | EP1396970A1 Method for scaling signal peaks and corresponding transmitter |
| 03/10/2004 | EP1396933A1 System to reduce unwanted oscillations in high speed, high gain or transimpedance amplifiers |
| 03/10/2004 | EP1396932A2 Wireless communication apparatus |
| 03/10/2004 | EP1395491A1 Inserting apparatus and method with controlled, master cycle speed-dependent actuator operations |
| 03/10/2004 | EP1201028A4 Transistor amplifier having reduced parasitic oscillations |
| 03/10/2004 | CN1481608A 功率放大器 PA |
| 03/10/2004 | CN1481607A Pre-distortion f non-linear devices by post-detection |
| 03/10/2004 | CN1481606A Communications systems |
| 03/10/2004 | CN1141790C Temperature dependence compensation in electronic devices and resistive component |
| 03/10/2004 | CN1141787C Variable-gain single-ended-to-difference radio-frequency low-noise amplifier |
| 03/10/2004 | CN1141714C Internal voltage generating circuit |
| 03/09/2004 | US6704560 Low-voltage transconductance amplifier/filters |
| 03/09/2004 | US6704551 Calibration of in-phase and quadrature transmit branches of a transmitter |
| 03/09/2004 | US6703900 Fast, stable overload recovery circuit and method |
| 03/09/2004 | US6703898 Differential amplifier comprising an unlocking device |