| 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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| 03/17/2010 | CN101674056A Power amplifier linearization using RF feedback |
| 03/17/2010 | CN101674055A Self-adapting burst-mode signal receiving and regenerating amplifier |
| 03/17/2010 | CN101674054A Power series predistorter and control method thereof |
| 03/17/2010 | CN101674053A Cascode circuit |
| 03/17/2010 | CN101674052A Grading bypass circuit for tower amplifier and control method thereof |
| 03/17/2010 | CN101674051A Method for improving efficiency of radio frequency power amplifier and radio frequency power amplifier circuit |
| 03/17/2010 | CN100594672C N-way RF power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances |
| 03/17/2010 | CN100594670C Standing wave ratio debugging method and system of low noise amplifier |
| 03/17/2010 | CN100594669C Power amplifier predistortion method of Hammerstein model based on fuzzy neural network |
| 03/17/2010 | CN100594668C Intelligent RF power control for wireless modem devices |
| 03/17/2010 | CN100594667C Cascode connection circuit |
| 03/17/2010 | CN100594666C Differential amplifier circuit capable of reducing current consumption |
| 03/17/2010 | CA2673699A1 Bias controller |
| 03/16/2010 | US7680630 Monitoring a parameter with low power consumption for aircraft landing gear-data logger |
| 03/16/2010 | US7680209 Method and device for training an RF amplifier linearization device, and mobile terminal incorporating same |
| 03/16/2010 | US7679450 Amplifier auto biasing |
| 03/16/2010 | US7679441 High frequency power amplifier |
| 03/16/2010 | US7679440 Feedforward amplifier |
| 03/16/2010 | US7679439 Predistorter |
| 03/16/2010 | US7679437 Split-feedback technique for improving load regulation in amplifiers |
| 03/16/2010 | US7679436 Low noise amplifiers for low-power impulse radio ultra-wideband receivers |
| 03/11/2010 | WO2010027773A1 Setting the dc operating current of a rail-to-rail output stage of an op-amp |
| 03/11/2010 | WO2010026681A1 Differential amplifier, and method for constituting the same |
| 03/11/2010 | WO2010026676A1 Output buffer circuit and output buffer system |
| 03/11/2010 | WO2010026560A2 Predistortion unit and method of predistorting signals |
| 03/11/2010 | WO2010026445A1 Wireless communication unit, integrated circuit and method of power control of a power amplifier therefor |
| 03/11/2010 | WO2009155010A3 Rf power amplifiers with linearization |
| 03/11/2010 | WO2008050267A3 Power amplifier |
| 03/11/2010 | US20100060358 Compensating for variations in the response of a power supply |
| 03/11/2010 | US20100060357 Rf power amplifier system with impedance modulation |
| 03/11/2010 | US20100060356 Power series predistorter and control method thereof |
| 03/11/2010 | US20100060355 Apparatus and method of compensating distortion |
| 03/11/2010 | US20100060353 Power amplifier linearization using RF feedback |
| 03/11/2010 | US20100060352 Auto-correction feedback loop for offset and ripple suppression in a chopper-stabilized amplifier |
| 03/11/2010 | DE102009039980A1 Leistungsverstärker mit einer Ausgangsleistungssteuerung Power amplifier with output power control |
| 03/11/2010 | DE102008046689A1 Vorverzerrungslinearisierer Predistortion |
| 03/10/2010 | EP2161841A1 Predistortion of a radio frequency signal |
| 03/10/2010 | EP2161835A1 System and method for filtering harmonics of a power amplifier |
| 03/10/2010 | EP2161832A1 Power amplifier linearization using RF feedback |
| 03/10/2010 | CN201422101Y Self-adapting feed-forward linearity power amplifier device based on pilot frequency |
| 03/10/2010 | CN101669281A Amplifier apparatus |
| 03/10/2010 | CN101669280A Power supply providing ultrafast modulation of output voltage |
| 03/10/2010 | CN101667812A Frequency compensation method and linear voltage stabilizer with ultra low differential pressure |
| 03/10/2010 | CN101667811A MMIC InGaP HBT power amplifier |
| 03/10/2010 | CN101667810A Chip of double-frequency radio-frequency power amplifier circuit |
| 03/10/2010 | CN100593903C Current signal linear transmitting method |
| 03/10/2010 | CN100593902C Radio frequency power amplifier |
| 03/10/2010 | CN100593901C Cascode-connected amplifier circuit, semiconductor integrated circuit using same, and receiving apparatus using same |
| 03/09/2010 | US7675544 System and method for video transmission line fault detection |
| 03/09/2010 | US7675365 Systems and methods for power amplifiers with voltage boosting multi-primary transformers |
| 03/09/2010 | US7675364 Circuit and method of establishing DC bias levels in an RF power amplifier |
| 03/09/2010 | US7675359 Switch-around low noise amplifier |
| 03/04/2010 | WO2010025027A2 Method and apparatus for adjusting load impedance of a distributed amplifier |
| 03/04/2010 | WO2010024952A1 Method of and circuit for reducing distortion in a power amplifier |
| 03/04/2010 | WO2010024746A1 Hybrid class amplifier |
| 03/04/2010 | WO2010023507A1 Wireless communication unit, semiconductor device and power control method therefor |
| 03/04/2010 | US20100056082 Communication system with frequency-adaptive predistorter design |
| 03/04/2010 | US20100052782 Transformer and structure thereof and power amplifier |
| 03/04/2010 | US20100052781 Correcting distortions at output of power amplifier |
| 03/04/2010 | US20100052780 Method of and circuit for reducing distortion in a power amplifier |
| 03/04/2010 | US20100052778 Nth Order Tunable Low-Pass Continuous Time Filter for Fiber Optic Receivers |
| 03/04/2010 | DE102004038851B4 Monolithisch integrierter Leistungsverstärker Monolithic integrated power amplifier |
| 03/03/2010 | EP2159914A1 Linearisation device and method |
| 03/03/2010 | EP2159913A1 Low noise amplifier |
| 03/03/2010 | EP2159912A1 Multi-band Doherty amplifier |
| 03/03/2010 | EP2158676A2 Switchable multiband lna design |
| 03/03/2010 | EP1664965B1 Quiescent current control circuit for high-power amplifiers |
| 03/03/2010 | EP1401097B1 Fm antenna amplifier |
| 03/03/2010 | CN101663812A A method and apparatus to linearize transconductors by predistortion |
| 03/02/2010 | US7672813 Mixed statistical and numerical model for sensor array detection and classification |
| 03/02/2010 | US7672463 Apparatus to control temperature of audio amp |
| 03/02/2010 | US7672397 Method for producing a transmission signal |
| 03/02/2010 | US7671683 Semiconductor integrated circuit and method for adjusting a capacitance value of a phase compensating capacitor |
| 03/02/2010 | US7671679 Semiconductor integrated circuit and amplifier for suppressing pop sound while minimizing voltage transition settling time |
| 03/02/2010 | US7671672 Baseband noise reduction |
| 02/25/2010 | WO2010022093A1 High-linearity low-noise receiver with load switching |
| 02/25/2010 | WO2010021957A1 Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels |
| 02/25/2010 | WO2010020833A1 Wireless communication unit, integrated circuit and method of power control of a power amplifier therefor |
| 02/25/2010 | US20100045864 Twisted pair communications line system |
| 02/25/2010 | US20100045375 Device for the low-distortion transformation, particularly amplification of signals |
| 02/25/2010 | US20100045372 Amplification circuit, amplification circuit noise reducing method and program thereof |
| 02/25/2010 | DE102009018993A1 Verstärkeranordnung Amplifier arrangement |
| 02/24/2010 | EP2157692A2 Linear power amplifier |
| 02/24/2010 | EP2156552A1 Improved feed forward noise reduction in a transmitter |
| 02/24/2010 | EP2156551A1 Configurable, variable gain lna for multi-band rf receiver |
| 02/24/2010 | CN201414112Y Low-noise amplifier used at mobile communication repeater |
| 02/24/2010 | CN101656513A Method for protecting power amplifier and protective circuit |
| 02/24/2010 | CN101656512A Device and method for measuring nonlinearity of power amplifier and predistortion compensation device |
| 02/24/2010 | CN101656511A Temperature compensating circuit of radio frequency power amplifier |
| 02/24/2010 | CN101656510A Gate voltage control method and system for power amplifier |
| 02/24/2010 | CN101656509A High and low power combination circuit of radio frequency power amplifier |
| 02/23/2010 | US7668321 Automatic power foldback for audio applications |
| 02/23/2010 | US7667538 Differential amplifier, data driver and display |
| 02/23/2010 | US7667537 Method for correcting a harmonic distortion of a power bridge, in particular for a class D amplifier |
| 02/23/2010 | US7667536 Offset fixing operational amplifier circuit |
| 02/23/2010 | US7667535 Amplifier circuit with input terminals thereof connected to sampling capacitors |
| 02/23/2010 | US7667511 Efficient pulse amplitude modulation transmit modulation |
| 02/18/2010 | WO2010019607A1 Techniques for improving balun loaded-q |
| 02/18/2010 | WO2010019601A1 Adaptive digital predistortion of complex modulated waveform using peak and rms voltage feedback from the output of a power amplifier |
| 02/18/2010 | WO2010018528A1 Arrangement for calibrating the quiescent operating point of a push-pull amplifier |