| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 06/03/2009 | EP2066029A2 Switched capacitor circuit, switched capacitor filter, and sigma-delta A/D converter |
| 06/03/2009 | EP2066024A2 Solid state microwave power amplifier |
| 06/03/2009 | EP2064812A2 Signal conditioning circuit, a comparator including such a conditioning circuit and a successive approximation converter including such a circuit |
| 06/03/2009 | EP1825592A4 A power multiplier apparatus and method |
| 06/03/2009 | CN201252518Y Big-power solid state power amplifier device |
| 06/03/2009 | CN101449459A Minimizing switching noise and its effects in auto-zeroed amplifiers |
| 06/03/2009 | CN101447768A 放大电路 Amplifier circuit |
| 06/03/2009 | CN101447767A Differential amplifier circuit |
| 06/03/2009 | CN101447766A Single-output operational amplifier be capable of eliminating excursion and method thereof |
| 06/03/2009 | CN101447765A Circuit and method for compensating for nonlinear distortion of power amplifier |
| 06/03/2009 | CN100495512C Driving apparatus of a liquid crystal display |
| 06/02/2009 | US7543253 Method and apparatus for compensating for temperature drift in semiconductor processes and circuitry |
| 06/02/2009 | US7541876 Amplifier and method for operating the same |
| 06/02/2009 | US7541875 High-linearity low noise amplifier and method |
| 06/02/2009 | US7541874 High-frequency power amplifier device |
| 06/02/2009 | US7541872 Startup circuit for subregulated amplifier |
| 06/02/2009 | US7541871 Operational transconductance amplifier (OTA) |
| 06/02/2009 | US7541870 Cross-coupled low noise amplifier for cellular applications |
| 06/02/2009 | US7541869 Feedback amplifier |
| 06/02/2009 | US7541867 Polar amplifier |
| 06/02/2009 | US7541866 Enhanced doherty amplifier with asymmetrical semiconductors |
| 06/02/2009 | US7541865 EER high frequency amplifier |
| 06/02/2009 | US7541864 Power amplifier and pulse-width modulated amplifier |
| 05/28/2009 | WO2009066690A1 Optical burst signal receiver |
| 05/28/2009 | WO2009066296A2 A low-power piezoelectric amplifier and method thereof |
| 05/28/2009 | US20090137220 Variable gain amplifier and receiver including the same |
| 05/28/2009 | US20090137213 Adaptive radio transceiver with offset pll with subsampling mixers |
| 05/28/2009 | US20090134941 Negative Resistance Input Amplifier Circuit and Oscillation Circuit |
| 05/28/2009 | US20090134939 Transistor device and method |
| 05/27/2009 | EP2063531A1 Amplifying unit, method of output control and control program |
| 05/27/2009 | EP2062350A1 Switch-less bidirectional amplifier |
| 05/27/2009 | EP2062349A2 Amplifier feedback and bias configuration |
| 05/27/2009 | EP1364457B1 Circuit for linearizing electronic devices |
| 05/27/2009 | EP1327308A4 System for closed loop power control using a linear or a non-linear power amplifier |
| 05/27/2009 | CN201248028Y Triggering circuit, audio power amplifier system and television set |
| 05/27/2009 | CN201247811Y Printing antenna system of vehicle rear window glass |
| 05/27/2009 | CN201247810Y Printing antenna system of vehicle rear window glass |
| 05/27/2009 | CN101443997A Operational amplifier |
| 05/27/2009 | CN101443996A Circuit and method for driving bulk capacitance of amplifier input transistors |
| 05/27/2009 | CN101443958A Equipment with share power amplifier for radio telecommunication system |
| 05/27/2009 | CN101442312A Analog to digital converter |
| 05/27/2009 | CN101442294A Amplifying circuit and method for improving linearity thereof |
| 05/27/2009 | CN101442293A 2.4GHz low noise amplifier circuit capable of resisting process change |
| 05/27/2009 | CN101442292A Radio-frequency amplifier digital bias circuit, method and communication equipment |
| 05/27/2009 | CN100492894C Circuit for parallel operation of doherty amplifiers |
| 05/27/2009 | CN100492893C Differential amplifier, and data driver of display device using the same |
| 05/27/2009 | CN100492892C Bit-line sense amplifier |
| 05/27/2009 | CN100492891C Digital amplifier |
| 05/27/2009 | CN100492890C Method for optimizing efficiency of amplifier device and related amplifier device |
| 05/27/2009 | CN100492889C Timing adjusting method and timing adjusting apparatus |
| 05/27/2009 | CN100492888C Predistorter for phase modulated signals with low peak to average ratios |
| 05/26/2009 | US7538632 Method and apparatus for controlling adaptive circuits |
| 05/26/2009 | US7538618 Wideband active balun circuit based on differential amplifier |
| 05/26/2009 | US7538617 Class AB amplifier circuit with combined quiescent current and common mode control |
| 05/26/2009 | US7538616 Wideband low distortion/low power |
| 05/26/2009 | US7538615 Differential feedback amplifier circuit with cross coupled capacitors |
| 05/26/2009 | US7538614 Differential amplifier with independent output common mode adjustment |
| 05/26/2009 | US7538613 Systems and methods for common mode detection |
| 05/26/2009 | US7538612 Control circuit for diode based RF circuits |
| 05/26/2009 | US7538611 Audio amplifier with high power and high efficiency |
| 05/26/2009 | US7538608 Photonic crystal ribbon-beam traveling wave amplifier |
| 05/26/2009 | US7538607 Class D amplifier |
| 05/26/2009 | US7538585 Transconductor |
| 05/26/2009 | US7538584 Sense amplifier |
| 05/26/2009 | CA2437193C Bias circuit for maintaining a constant value of transconductance divided by load capacitance |
| 05/22/2009 | WO2009065068A2 Switching amplifiers |
| 05/22/2009 | WO2009064649A1 Switched-capacitor amplifier with improved reset phase |
| 05/22/2009 | WO2009064587A1 Rf transmitter with heat compensation and method therefor |
| 05/22/2009 | WO2009063535A1 Bias circuit and method for controlling bias circuit |
| 05/22/2009 | WO2009063373A2 Signal processor comprising an amplifier |
| 05/22/2009 | WO2009063277A1 Amplifier circuit audio circuit and electronic device |
| 05/22/2009 | WO2009063276A1 Amplifier circuit |
| 05/22/2009 | WO2009044353A3 A distributed low noise amplifier |
| 05/22/2009 | WO2009009652A3 Segmented power amplifier |
| 05/21/2009 | US20090131099 Amplifying device and radio |
| 05/21/2009 | US20090128239 Multistage Tuning-Tolerant Equalizer Filter with Improved Detection Mechanisms for Lower and Higher Frequency Gain Loops |
| 05/21/2009 | US20090128238 Offset cancellation of a single-ended operational amplifier |
| 05/21/2009 | US20090128237 Switching amplifiers |
| 05/21/2009 | US20090128234 Two-peak-power-level control method and device for a pulse-mode amplifier |
| 05/21/2009 | US20090128232 Switched-capacitor amplifier with improved reset phase |
| 05/20/2009 | CN201243356Y Analog or digital audio output circuit and audio output equipment with the circuit |
| 05/20/2009 | CN201243265Y Electronic tube power amplifier with novel wiring structure |
| 05/20/2009 | CN101438493A Multiplier-transimpedance amplifier combination with input common mode feedback |
| 05/20/2009 | CN101438492A Multi-mode power amplifier with high efficiency under backoff operation |
| 05/20/2009 | CN101436848A Drive amplifying circuit |
| 05/20/2009 | CN101436847A Microwave low-waveband ultra-minitype frequency selection amplifying die set |
| 05/20/2009 | CN100490312C Common mode feedback circuit for switching capacitor system |
| 05/20/2009 | CN100490311C Miller compensation based chopped wave amplifer and nested chopper amplifiers |
| 05/20/2009 | CN100490310C Chopped wave automatic zero-stabilizing current-mode instrumentation amplifier |
| 05/20/2009 | CN100490309C Differential circuit, differential amplifier, differential mixer,oscillator and radio circuit using same |
| 05/20/2009 | CN100490308C Method and system for improving the power amplifier linearity |
| 05/20/2009 | CN100490307C Signal processing circuit, base station and method for clearing intermodulation product |
| 05/20/2009 | CN100490306C Amplifier circuit for AM broadcasting |
| 05/20/2009 | CN100490305C Sleeve type amplifier |
| 05/20/2009 | CN100490286C Method for regulating power converter output signal, power converter and its amplifier |
| 05/19/2009 | US7536153 Activation signal output circuit having multiple amplifier circuits |
| 05/19/2009 | US7536114 Method and system for converting an optical received pulse train into an electrical output pulse train |
| 05/19/2009 | US7535467 Analog buffer, display device having the same, and method of driving the same |
| 05/19/2009 | US7535310 Distortion compensation circuit |
| 05/19/2009 | US7535304 Amplifier coupling on a reduced area |