| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 03/24/2004 | EP1401097A1 Fm antenna amplifier |
| 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 | EP1400019A1 Linearized offset qpsk modulation utilizing a sigma-delta based frequency modulator |
| 03/24/2004 | EP1400012A2 Distributed circular geometry power amplifier architecture |
| 03/24/2004 | EP1330871B1 Multiple-voltage supply power amplifier with dynamic headroom control |
| 03/24/2004 | CN1484307A 输入保护电路 Input protection circuit |
| 03/24/2004 | CN1143568C Transmitter and method for controlling gain of transmitted signal |
| 03/24/2004 | CN1143521C Apparatus for controlling video signal dc level in receiver |
| 03/24/2004 | CN1143427C Mutual impedance amplifier |
| 03/23/2004 | US6711392 Balanced power amplifier for low power radio communications |
| 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 | US6710662 Power amplifier with improved linearity and reduced transistor stacks |
| 03/23/2004 | US6710661 Low input impedance with amplifier |
| 03/23/2004 | US6710660 Class B power buffer with rail to rail output swing and small deadband |
| 03/23/2004 | US6710659 Variable-gain amplifier with stepwise controller |
| 03/23/2004 | US6710658 Non-linear signal processor |
| 03/23/2004 | US6710657 Gain control circuit with well-defined gain states |
| 03/23/2004 | US6710656 High gain amplifier circuits and their applications |
| 03/23/2004 | US6710655 Bipolar emitter couple pair transconductor for high speed operational amplifiers |
| 03/23/2004 | US6710654 Bipolar class AB folded cascode operational amplifier for high-speed applications |
| 03/23/2004 | US6710653 D-class power amplifier with electric power regeneration function |
| 03/23/2004 | US6710650 Amplifier switching |
| 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 | US6710646 Cuk style inverter with hysteretic control |
| 03/23/2004 | US6710645 Amplifier circuit with offset compensation, in particular for digital modulation devices |
| 03/23/2004 | US6710629 Impedance comparison integrator circuit |
| 03/23/2004 | US6710317 Current to voltage converter with optical gain mechanism |
| 03/18/2004 | WO2004023676A1 Signal, interference and noise power measurement |
| 03/18/2004 | WO2004023650A1 Push-pull amplifier and frequency conversion circuit |
| 03/18/2004 | WO2004023649A1 Electronic component for amplifying high frequency power and radio communication system |
| 03/18/2004 | WO2004023648A2 Amplifier power control circuit |
| 03/18/2004 | WO2004023647A1 Composite power 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 | US20040052397 Audio device heat transferring |
| 03/18/2004 | US20040051589 High-frequency power amplifier |
| 03/18/2004 | US20040051588 Radio frequency power amplifier device |
| 03/18/2004 | US20040051587 Amplifying circuit with variable load drivability |
| 03/18/2004 | US20040051586 System and method for a startup circuit for a differential CMOS amplifier |
| 03/18/2004 | US20040051585 Slew rate enhancement circuit |
| 03/18/2004 | US20040051583 Transmitter including a composite amplifier |
| 03/18/2004 | US20040051581 Band gap circuit |
| 03/18/2004 | US20040051516 Integrated circuit with automatic polarity detection and configuration |
| 03/17/2004 | EP1398886A2 Dynamic bias for rf power amplifiers |
| 03/17/2004 | EP1398836A2 Thin film semiconductor device and manufacturing method |
| 03/17/2004 | EP1397859A2 Distributed amplifier having separately biased sections |
| 03/17/2004 | EP1397836A2 Mmic with off-chip bias feed system |
| 03/17/2004 | EP0929934B1 Merged transconductance amplifier |
| 03/17/2004 | EP0885483A4 Push-pull power amplifier |
| 03/17/2004 | CN1483241A High frequency amplification circuit |
| 03/17/2004 | CN1483240A Microwave amplifier with bypass segment |
| 03/17/2004 | CN1483239A Amplifier circuit for am broadcasting |
| 03/17/2004 | CN1483208A Method and apparatus for making semiconductor device and the semiconductor device |
| 03/17/2004 | CN1483186A Driving circuit and method for liquid crystal display device |
| 03/17/2004 | CN1482737A Amplifier conversion speed reinforcing system for switch capacitor structure |
| 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 | US6707625 Dual-sense impedance-matched reader |
| 03/16/2004 | US6707623 Circuit device for restoring the symmetry of an analog signal originated by the reading of data from magnetic supports |
| 03/16/2004 | US6707405 Integrated analog multiplexer |
| 03/16/2004 | US6707341 Semiconductor device with bipolar transistor device |
| 03/16/2004 | US6707339 Controlled bias current buffer and method thereof |
| 03/16/2004 | US6707337 Self-operating PWM amplifier |
| 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 | US6707023 Differential photoelectric receiver circuit |
| 03/11/2004 | WO2004021563A1 Receiving arrangement comprising a pre-amplifier circuit |
| 03/11/2004 | WO2004021562A2 System and method for establishing the input impedance of an amplifier in a stacked configuration |
| 03/11/2004 | WO2004021561A1 Amplification circuit |
| 03/11/2004 | WO2004021560A1 System and method for establishing a bias current using a feedback loop |
| 03/11/2004 | WO2004021251A2 Switched capacitor system, method, and use |
| 03/11/2004 | WO2003067752A3 Adc having chopper offset cancellation |
| 03/11/2004 | WO2003063246A3 Rf amplifier |
| 03/11/2004 | WO2002097975A3 High-bandwidth low-voltage gain cell and voltage follower having an enhanced transconductance |
| 03/11/2004 | US20040047477 Power amplification for parametric loudspeaker |
| 03/11/2004 | US20040047397 Temperature controller in optical communication device and method for same |
| 03/11/2004 | US20040046680 Delta-sigma modulation apparatus and signal amplification apparatus |
| 03/11/2004 | US20040046608 Variable gain amplifier with a gain exhibiting a linear in dB characteristic relative to a control voltage |
| 03/11/2004 | US20040046607 Method and apparatus for modulating a radio signal using digital amplitude and phase control signals |
| 03/11/2004 | US20040046606 Charge recycling amplifier for a high dynamic range CMOS imager |
| 03/11/2004 | US20040046605 Transconductance amplifiers |
| 03/11/2004 | US20040046593 Circuit for low noise, fully differential amplication |
| 03/11/2004 | US20040046592 Comparator circuit |
| 03/11/2004 | US20040046209 When n-channel thin film transistors(TFTs) and p-channel TFTs are formed on a polycrystalline silicon film formed on a glass substrate, a process is included in which P-dopant or N-dopant is introduced at the same time to the channel region |
| 03/11/2004 | DE10333553A1 Leistungsverstärker mit verteiltem Kondensator Power amplifier with distributed capacitor |
| 03/11/2004 | DE10239854A1 Vorverstärkerschaltung und Empfangsanordnung mit der Vorverstärkerschaltung Preamplifier and receiving arrangement with the preamplifier |
| 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 | EP1396776A1 Temperature controller in optical communication device and method for same |
| 03/10/2004 | EP1396080A1 Mmic driver amplifier having zig-zag rf signal flow |
| 03/10/2004 | EP1396079A1 Multi-level power amplifier |
| 03/10/2004 | EP1201028A4 Transistor amplifier having reduced parasitic oscillations |
| 03/10/2004 | CN2606493Y Non-stop constant current offset loundspeaker |