| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 06/18/2009 | WO2009075108A1 Audio power amplifier |
| 06/18/2009 | WO2009074176A1 Power amplifier comprising a switchable, high-impedance output |
| 06/18/2009 | US20090154255 Symmetrically operating single-ended input buffer devices and methods |
| 06/18/2009 | US20090153688 Digital Video Cable Driver |
| 06/18/2009 | US20090153251 Voltage detection type overcurrent protection device for class-d amplifier |
| 06/18/2009 | US20090153250 Method and system for scaling supply, device size, and load of a power amplifier |
| 06/18/2009 | US20090153249 Rail to rail buffer amplifier |
| 06/18/2009 | US20090153248 Amplifier with dynamic bias |
| 06/18/2009 | US20090153247 High-speed, multi-stage class ab amplifiers |
| 06/18/2009 | US20090153246 Method and system for varying gain exponentially with respect to a control signal |
| 06/18/2009 | US20090153245 Variable-gain wide-dynamic-range amplifier |
| 06/18/2009 | US20090153244 Low noise and low input capacitance differential mds lna |
| 06/18/2009 | US20090153243 Class d amplifier |
| 06/18/2009 | US20090153242 Method and apparatus for direct digital to radio frequency conversion |
| 06/18/2009 | US20090152444 Illumination sensor |
| 06/17/2009 | EP2071788A1 Method of providing a multi-carrier signal and transmitter |
| 06/17/2009 | EP2070278A2 Output power correction module for amplifiers in transmitters |
| 06/17/2009 | EP2070193A2 Switching amplifier |
| 06/17/2009 | EP2070190A1 Controlled power converter |
| 06/17/2009 | EP1393438B1 Linearized switch-based power amplifier |
| 06/17/2009 | EP1088391B1 Improved operational amplifier output stage |
| 06/17/2009 | CN201260151Y RF power amplifier for Dvor system |
| 06/17/2009 | CN201260150Y C波段功率放大器 C-Band Power Amplifier |
| 06/17/2009 | CN101459413A Differential amplifier and data driver employing the differential amplifier |
| 06/17/2009 | CN101459412A Full scale input-output operational amplifier |
| 06/17/2009 | CN101459411A Class-D amplifier |
| 06/17/2009 | CN101459410A Class D amplifier |
| 06/17/2009 | CN100502235C Signal output circuit |
| 06/17/2009 | CN100502234C Device and method for digital pulsewidth modulation |
| 06/17/2009 | CN100502233C Power amplifier based on high voltage great current operation amplifier |
| 06/17/2009 | CN100502232C A DC level switching circuit |
| 06/17/2009 | CN100502231C BiCMOS logarithmic amplifier |
| 06/16/2009 | US7548732 Power amplifier arrangement having two or more antenna coupling respective amplifiers to a supply potential |
| 06/16/2009 | US7548700 Receiving apparatus and method thereof |
| 06/16/2009 | US7548118 Semiconductor device and power amplifier |
| 06/16/2009 | US7548115 Common mode rejection ratio trim circuit and methodology |
| 06/16/2009 | US7548114 Apparatus for slew rate enhancement of an operational amplifier |
| 06/16/2009 | US7548113 Apparatus, amplifier, system and method for receiver equalization |
| 06/16/2009 | US7548111 Miniature dual band power amplifier with reserved pins |
| 06/16/2009 | US7548110 Power amplifier and method for reducing common noise of power amplifier |
| 06/16/2009 | US7548096 Current to voltage converter and current to voltage conversion method |
| 06/16/2009 | US7548045 Low-consumption voltage regulator |
| 06/11/2009 | WO2009073581A1 High-linearity complementary amplifier |
| 06/11/2009 | WO2009072944A1 Load modulation arrangement |
| 06/11/2009 | WO2009072167A1 Radio transmitting apparatus and radio transmitting method |
| 06/11/2009 | WO2009072071A1 Transmitter comprising a pulse width pulse position modulator and method thereof |
| 06/11/2009 | WO2009070986A1 A device of controlling the dc bias of rf discharge system and method thereof |
| 06/11/2009 | US20090149144 Wireless backhaul power amplification using fourier transform matricies |
| 06/11/2009 | US20090146741 High-frequency amplifier, high-frequency module, and mobile wireless apparatus using the same |
| 06/11/2009 | US20090146740 Average power efficiency enhancement and linearity improvement of microwave power amplifiers |
| 06/11/2009 | US20090146739 Optical receiver and amplifier and photocoupler using the same |
| 06/11/2009 | US20090146738 Operational amplifier |
| 06/11/2009 | US20090146737 Class-d amplifier and multi-level output signal generated method thereof |
| 06/11/2009 | US20090146696 Class-ab driver design with improved frequency response |
| 06/11/2009 | US20090146048 Photo detecting apparatus |
| 06/10/2009 | EP2068440A2 Pulse width modulation circuit and switching amplifier using the same |
| 06/10/2009 | EP2068439A2 Distortion-compensation amplification apparatus and distortion compensation method |
| 06/10/2009 | EP2067255A1 Method of control slope regulation and control slope regulation apparatus |
| 06/10/2009 | EP2067253A2 Amplifier architecture for polar modulation |
| 06/10/2009 | EP1754306B1 Coupling net and mmic amplifier |
| 06/10/2009 | DE102007042879B3 Speichervorrichtung mit Bewertungsschaltung für die elektrische Ladung einer Speicherzelle Memory device comprising evaluation circuit for the electric charge of a memory cell |
| 06/10/2009 | CN101454971A Mode selection amplifier circuit usable in a signal acquisition probe |
| 06/10/2009 | CN101454970A An amplifier circuit with cross-coupled cascode transistors |
| 06/10/2009 | CN101453196A Amplifier circuit |
| 06/10/2009 | CN101453195A Method for increasing common mode feedback stability by grounding capacitor |
| 06/10/2009 | CN101453194A Non-filter circuit construction for D type power amplifier and processing method thereof |
| 06/10/2009 | CN100499359C Cross-talk reduction circuit and method therefor |
| 06/10/2009 | CN100499358C Body-response vibration acoustics power amplifying circuit |
| 06/10/2009 | CN100499356C Dynamic allocation of power supplied by a power supply and frequency agility spectral filtering of signals |
| 06/10/2009 | CN100499355C Audio-frequency signal output apparatus |
| 06/10/2009 | CN100499264C Single band antenna and method for tuning same |
| 06/09/2009 | US7545686 Device for setting up a write current in an MRAM type memory and memory comprising |
| 06/09/2009 | US7545221 Signal amplifying apparatus including I/O devices and core devices |
| 06/09/2009 | US7545220 Method for shaping signal pulses |
| 06/09/2009 | US7545219 Open loop DC control for a transimpedance feedback amplifier |
| 06/09/2009 | US7545218 Device and method for power amplifier noise reduction |
| 06/09/2009 | US7545216 Amplifier with current mirror bias adjust |
| 06/09/2009 | US7545215 Circuit to prevent load-induced DC nonlinearity in an op-amp |
| 06/09/2009 | US7545214 Class AB rail-to-rail input and output operational amplifier |
| 06/09/2009 | US7545213 Operational amplifier |
| 06/09/2009 | US7545212 Class ad audio amplifier |
| 06/09/2009 | US7545207 Control circuit and method for a switching amplifier |
| 06/09/2009 | US7545206 Apparatus for and method of biasing a transistor |
| 06/09/2009 | US7544921 Linear distributed pixel differential amplifier having mirrored inputs |
| 06/09/2009 | CA2495010C Method and apparatus for optimizing transmitter power efficiency |
| 06/09/2009 | CA2300212C Radar transmitter |
| 06/04/2009 | US20090142074 Optical receiving apparatus, optical line terminal apparatus, and optical network system |
| 06/04/2009 | US20090140815 Low noise amplifier for ultra wide band |
| 06/04/2009 | US20090140814 Rf power amplifier |
| 06/04/2009 | US20090140812 High-linearity complementary amplifier |
| 06/04/2009 | US20090140811 Amplifying circuit |
| 06/04/2009 | US20090140810 Variable Gain Amplifier |
| 06/04/2009 | US20090140809 High Performance Variable Gain Amplifier, Method of Use and Design Structure |
| 06/04/2009 | US20090140808 Gain control circuit |
| 06/04/2009 | US20090140807 Differential amplifier circuit |
| 06/04/2009 | US20090140804 Method and apparatus for improving the performance of mimo wireless systems |
| 06/04/2009 | US20090140803 Amplifiers with compensation |
| 06/04/2009 | US20090140799 Integrated rc filter |
| 06/04/2009 | US20090140771 Current-controlled CMOS circuits with inductive broadbanding |
| 06/04/2009 | DE102008032175A1 Adressentreiber und Herstellungsverfahren sowie diesen verwendendes Anzeigebauelement Address drivers, processes and these display-use device |