| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 11/17/2009 | US7619467 Modulated triangular wave amplifier |
| 11/17/2009 | US7619445 Differential amplifier, digital-to-analog converter and display apparatus |
| 11/12/2009 | WO2009137160A2 Controlling power with an output network |
| 11/12/2009 | WO2009136326A1 Efficient linear linc power amplifier |
| 11/12/2009 | WO2009136202A1 Amplifier circuit |
| 11/12/2009 | US20090278868 Driving circuit for display apparatus, and method for controlling same |
| 11/12/2009 | US20090278609 Supply control for multiple power modes of a power amplifier |
| 11/12/2009 | US20090278608 Power Supply Device for Driving an Amplifier |
| 11/12/2009 | US20090278607 Power Supply Device For Driving An Amplifier |
| 11/12/2009 | US20090278605 Method for implementation and parameter settings of a voltage enhancement circuit for amplifiers as an integrated circuit (ic) |
| 11/12/2009 | US20090278604 Operational Amplifier and Related Method of Enhancing Slew Rate |
| 11/12/2009 | US20090278603 All n-type transistor high-side current mirror |
| 11/12/2009 | US20090278602 Closed loop surge protection technique for differential amplifiers |
| 11/12/2009 | US20090278601 Preamplifier and method for calibrating offsets therein |
| 11/12/2009 | US20090278600 Electronic circuit and electronic device |
| 11/12/2009 | US20090278599 Progressive power generating amplifiers |
| 11/12/2009 | US20090278575 Charge recycling amplifier for a high dynamic range cmos imager |
| 11/12/2009 | US20090278028 Current detection circuit, light receiving device using the same, and electronic device |
| 11/11/2009 | EP2117119A1 Progressive power generating amplifiers |
| 11/11/2009 | EP2117118A1 Parallel amplifier architecture with feedback control based on reflected signal strength |
| 11/11/2009 | EP2117117A1 Modulation digital-analog converter, digital signal processing method, and av device |
| 11/11/2009 | EP2117116A2 Delay detection circuit, distortion compensation circuit, and communication apparatus |
| 11/11/2009 | EP2117070A1 Microwave device, high frequency device and high frequency apparatus |
| 11/11/2009 | EP2115869A1 Multimode amplifier for operation in linear and saturated modes |
| 11/11/2009 | EP1293074B1 Method and apparatus for modulating a radio signal using digital amplitude and phase control signals |
| 11/11/2009 | CN101578763A Transmission power control method and transmission device |
| 11/11/2009 | CN101578762A Polar modulation transmission device and transmission power control method |
| 11/11/2009 | CN101577535A Device and method for sample rate conversion |
| 11/11/2009 | CN101577529A AB output grade with variable bias voltage point control and method thereof |
| 11/11/2009 | CN101577528A Progressive power generating amplifiers |
| 11/11/2009 | CN101577527A Audio amplifier |
| 11/11/2009 | CN101577526A Radio-frequency push-pull power amplifier |
| 11/11/2009 | CN100559719C Power amplification apparatus of portable terminal |
| 11/11/2009 | CN100559706C Radio-frequency differential-to-single-ended converter |
| 11/11/2009 | CN100559705C Mutual resistance amplifier |
| 11/11/2009 | CN100559704C Photo-receiving pre-amplifier |
| 11/11/2009 | CN100559701C Driving circuit of power amplifier |
| 11/11/2009 | CN100559319C Hybrid switched mode/linear power amplifier power supply for use in polar transmitter |
| 11/10/2009 | US7616062 Received-light amplifier |
| 11/10/2009 | US7616061 Low noise amplifier for ultra wide band |
| 11/10/2009 | US7616059 Temperature compensation of small signal gain of an amplifier stage |
| 11/10/2009 | US7616058 Radio frequency power combining |
| 11/10/2009 | US7616056 Nauta operational transconductance amplifier |
| 11/10/2009 | US7616053 Power amplifier circuit and method for envelope modulation of high frequency signal |
| 11/05/2009 | WO2009134735A1 Chopper-stabilized amplifier and magnetic field sensor |
| 11/05/2009 | WO2009133828A1 Offset correction circuit and offset correction method |
| 11/05/2009 | US20090273401 Method and System for Multiple Tuner Application Using a Low Noise Broadband Distribution Amplifier |
| 11/05/2009 | US20090273400 Device and method for generating an output signal |
| 11/05/2009 | US20090273399 Power amplifier, power amplifier circuit and power amplifying method |
| 11/05/2009 | US20090273397 Controlling power with an output network |
| 11/05/2009 | US20090273396 Pulse Area Modulation and High-Efficiency Linear Power Amplifier System Using the Same |
| 11/05/2009 | US20090273395 Preamplifier and method for calibrating offset voltages therein |
| 11/05/2009 | US20090272882 Method and Device for Detecting Weak Optical Signals |
| 11/05/2009 | DE102009000624A1 Asymmetrische segmentierte Kanaltransistoren Asymmetric segmented channel transistors |
| 11/05/2009 | DE102008021660A1 Vorrichtung und Verfahren zur Erzeugung eines Ausgangssignals Apparatus and method for generating an output signal |
| 11/04/2009 | EP2114008A1 A method for controlling an amplifier and an amplifier |
| 11/04/2009 | EP2114000A2 Phase current detectionapparatus |
| 11/04/2009 | EP1364456B1 Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control |
| 11/04/2009 | CN201341157Y Digital signal splitter |
| 11/04/2009 | CN201341116Y High-precision current amplifier |
| 11/04/2009 | CN201340448Y Aging circuit arrangement for switch triode |
| 11/03/2009 | US7612616 Low-noise amplifier |
| 11/03/2009 | US7612615 Dual supply amplifier |
| 11/03/2009 | US7612614 Device and method for biasing a transistor amplifier |
| 11/03/2009 | US7612613 Self regulating biasing circuit |
| 11/03/2009 | US7612612 Calibration circuitry and delay cells in rectilinear RF power amplifier |
| 11/03/2009 | US7612610 Active input load wide bandwidth low noise HEMT amplifier |
| 11/03/2009 | US7612609 Self-stabilizing differential load circuit with well controlled complex impedance |
| 11/03/2009 | US7612608 Sigma-delta based Class D audio or servo amplifier with load noise shaping |
| 11/03/2009 | US7612607 Small size power amplifier with amplifiers switched |
| 11/03/2009 | US7612322 Temperature-compensated high dynamic range optical receiver |
| 10/29/2009 | WO2009131440A1 Method and control circuit for controlling pulse width modulation |
| 10/29/2009 | WO2009131138A1 Amplifier |
| 10/29/2009 | WO2009131119A1 Smoke sensor |
| 10/29/2009 | WO2009130544A1 Wireless communication unit and semiconductor device having a power amplifier therefor |
| 10/29/2009 | WO2009088278A3 Temperature compensation method for ion sensor using vt extractor circuit |
| 10/29/2009 | US20090267882 Common voltage generator, display device including the same, and method thereof |
| 10/29/2009 | US20090267696 High slew rate amplifier, analog-to-digital converter using same, cmos imager using the analog-to-digital converter and related methods |
| 10/29/2009 | US20090267695 Class AB output stage with programmable bias point control |
| 10/29/2009 | US20090267694 Apparatus for receiving input and bias signals at common node |
| 10/29/2009 | US20090267693 Resistor self-trim circuit for increased performance |
| 10/29/2009 | US20090267692 Digitally variable gain amplifier using multiplexed gain blocks |
| 10/29/2009 | US20090267691 Amplifier circuit |
| 10/29/2009 | US20090267690 Signal modulation device and signal amplifier cooperative therewith |
| 10/29/2009 | US20090267689 High efficiency amplifier with reduced parasitic capacitance |
| 10/29/2009 | US20090267585 Cascode current mirror circuit, bandgap circuit, reference voltage circuit having the cascode current mirror circuit and the bandgap circuit, and voltage stabilizing/regulating circuit having the reference voltage circuit |
| 10/29/2009 | US20090266976 Amplification with feedback capacitance for photodetector signals |
| 10/29/2009 | CA2722958A1 Smoke sensor |
| 10/28/2009 | EP2111709A2 Differential receiver with common-gate input stage |
| 10/28/2009 | EP2111707A1 Sound reproducing system with superimposed digital signal |
| 10/28/2009 | CN101569091A Class-D amplifier |
| 10/28/2009 | CN101567670A Method for realizing broadband multi-target low-noise amplifier |
| 10/28/2009 | CN101567669A Variable gain amplifier |
| 10/28/2009 | CN101567668A Voltage detection type overcurrent protection device applied to D-class amplifier |
| 10/28/2009 | CN101567667A Enhancement type analog predistortion linear power amplifier |
| 10/28/2009 | CN100556203C Audio amplifier local interface system |
| 10/28/2009 | CN100555913C Automatic bit rate control circuit |
| 10/28/2009 | CN100555847C Transconductance amplifier and method of amplifying transconductance |
| 10/28/2009 | CN100555846C A D-category amplifier and method for driving three-line dual track speaker based on it |
| 10/28/2009 | CN100555845C Method and device for correcting signal distortions in an amplifier device |