| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/02/2007 | CN1956319A High frequency power amplifier |
| 05/02/2007 | CN1314214C Receiving circuit for free-space optical communication |
| 05/01/2007 | US7212791 Transmission device and delay time adjustment method thereof |
| 05/01/2007 | US7212072 High linearity smart HBT power amplifiers for CDMA/WCDMA application |
| 05/01/2007 | US7212071 Techniques to lower drive impedance and provide reduced DC offset |
| 05/01/2007 | US7212070 Circuit and method of reducing noise in an RF power amplifier |
| 05/01/2007 | US7212069 Power control and modulation of switched-mode power amplifiers with one or more stages |
| 05/01/2007 | US7211961 Thin film transistor circuit and display utilizing the same |
| 04/26/2007 | WO2007048007A2 Wideband circuits and methods |
| 04/26/2007 | WO2007047015A2 Digital time variable gain circuit for non-destructive test instrument |
| 04/26/2007 | WO2007046732A1 A transconductance stage arrangement |
| 04/26/2007 | WO2007046370A1 Non-linear distortion detection method and distortion compensation amplification device |
| 04/26/2007 | WO2007028001A3 Method and device for performing offset cancellation in an amplifier using floating-gate transistors |
| 04/26/2007 | WO2007016428A3 Method and apparatus for implementing soft switching in a class d amplifier |
| 04/26/2007 | US20070093230 Multi-band low noise amplifier |
| 04/26/2007 | US20070093225 Semiconductor integrated circuit device and wireless communication system |
| 04/26/2007 | US20070091052 Output circuit, digital analog circuit and display device |
| 04/26/2007 | US20070090879 Active input load wide bandwidth low noise hemt amplifier |
| 04/26/2007 | US20070090878 Ultra high linearity amplifier |
| 04/26/2007 | US20070090877 Wideband circuits and methods |
| 04/26/2007 | US20070090876 Apparatus for variable gain amplifiers and mixers |
| 04/26/2007 | US20070090874 RF power transmission, modulation, and amplification embodiments |
| 04/26/2007 | DE19910755B4 Lineare Strommeßschaltung für Motorsteuerung Linear current sensing circuit for motor control |
| 04/25/2007 | EP1777814A2 Methods and apparatus for switching between class A and A/B operation in a power amplifier |
| 04/25/2007 | EP1777812A1 Fet bias circuit |
| 04/25/2007 | EP1776783A1 Transimpedance amplifier with integrated filtering and reduced parasitic capacitance |
| 04/25/2007 | EP1776753A1 System and method for current-mode amplitude modulation |
| 04/25/2007 | EP1323230B1 Switching power amplifier |
| 04/25/2007 | CN1954495A Method and apparatus having a digital PWM signal generator with integral noise shaping |
| 04/25/2007 | CN1954489A Multi-band low noise amplifier system |
| 04/25/2007 | CN1953321A Operational amplifier |
| 04/25/2007 | CN1953320A Offset canceller |
| 04/24/2007 | US7209845 Configurable voltage regulator |
| 04/24/2007 | US7209842 Activation signal output circuit and determination circuit |
| 04/24/2007 | US7209717 Apparatus for radio telecommunication system and method of building up output power |
| 04/24/2007 | US7209715 Power amplifying method, power amplifier, and communication apparatus |
| 04/24/2007 | US7209524 Layered modulation for digital signals |
| 04/24/2007 | US7209007 Combined analog signal gain controller and equalizer |
| 04/24/2007 | US7209006 Differential amplifier with increased common mode loop gain at low frequencies |
| 04/24/2007 | US7209005 Class-AB amplifier for dual voltage supplies |
| 04/24/2007 | US7209004 DB-linear variable gain amplifier (VGA) stage with a high broad band |
| 04/24/2007 | US7209003 Asynchronous BTL design for a Class-D audio amplifier |
| 04/24/2007 | US7209002 Audio amplifier |
| 04/24/2007 | US7208999 Step-down circuit with stabilized output voltage |
| 04/24/2007 | US7208995 Charge pump circuit and amplifier |
| 04/24/2007 | US7208994 Fuse sense circuit |
| 04/24/2007 | US7208924 Semiconductor integrated circuit device |
| 04/24/2007 | US7208778 Power amplifier having high heat dissipation |
| 04/19/2007 | WO2007044148A2 Apparatus and method for adaptive biasing of a doherty amplifier |
| 04/19/2007 | WO2007043389A1 Cmos amplifier using 4-terminal dual insulating gate field-effect transistor, multi-input cmos amplifier using the same, high-gain multi-input cmos amplifier, high-gain highly-stable multi-input cmos amplifier, and multi-input cmos differential amplifier |
| 04/19/2007 | WO2007042507A2 Systems and methods for transferring single-ended burst signal onto differential lines, especially for use in burst-mode receiver |
| 04/19/2007 | US20070085609 Transmitting arrangement and method for impedance matching |
| 04/19/2007 | US20070085608 Differential amplifier, digital-to-analog converter, and display device |
| 04/19/2007 | US20070085607 Electronic circuit for amplification of a bipolar signal |
| 04/19/2007 | US20070085606 Digital time variable gain circuit for non-destructive test instrument |
| 04/19/2007 | US20070085605 Differential amplifier |
| 04/19/2007 | US20070085604 Method and apparatus for reducing ripple in class d amplifiers |
| 04/19/2007 | US20070085603 Slew rate enhancement circuit via dynamic output stage for adjusting gamma curve |
| 04/19/2007 | US20070085602 High-efficiency mixed-mode power amplifier |
| 04/19/2007 | US20070084986 Multiple photosensor pixel |
| 04/19/2007 | DE102006033457A1 Hochfrequenzleistungsverstärker High frequency power amplifier |
| 04/19/2007 | DE102005048409A1 Verstärkeranordnung für Ultra-Breitband-Anwendungen und Verfahren Amplifier arrangement for ultra-wideband applications and processes |
| 04/18/2007 | EP1774650A1 Transconductor circuits |
| 04/18/2007 | EP1774620A1 Integrated rf front end |
| 04/18/2007 | EP1774590A1 Module integration integrated circuits |
| 04/18/2007 | EP1119111B1 Isolator with built-in power amplifier |
| 04/18/2007 | CN1951003A Linear capacitance measurement and touchless switch |
| 04/18/2007 | CN1949662A Amplifier arrangement for ultra-wideband applications and method |
| 04/18/2007 | CN1311626C If amplifier |
| 04/18/2007 | CN1311625C FET band amplifier |
| 04/18/2007 | CN1311624C High-efficiency power modulators |
| 04/17/2007 | US7206553 Method and apparatus for impedance matching in an amplifier using lumped and distributed inductance |
| 04/17/2007 | US7206521 Signal level detecting device for a burst-mode optical receiver |
| 04/17/2007 | US7206419 Guitar preamlifier system with controllable distortion |
| 04/17/2007 | US7206355 Digitally convertible radio |
| 04/17/2007 | US7206348 Twisted pair communications line system |
| 04/17/2007 | US7205846 Radio frequency CMOS amplifier with enhanced linearity and power efficiency |
| 04/17/2007 | US7205845 Amplifier circuit for converting the current signal from an optical receiving element into a voltage signal |
| 04/17/2007 | US7205844 Low noise and high gain low noise amplifier |
| 04/17/2007 | US7205840 Wideband CMOS gain stage |
| 04/17/2007 | US7205839 High bandwidth apparatus and method for generating differential signals |
| 04/17/2007 | US7205838 Circuit structure capable of adjusting gradient of output to temperature variation |
| 04/17/2007 | US7205837 Body effect amplifier |
| 04/17/2007 | US7205836 SiGe differential cascode amplifier with miller effect resonator |
| 04/17/2007 | US7205835 Switching mode power amplifier having increased power efficiency |
| 04/17/2007 | US7205834 Power amplifier |
| 04/17/2007 | US7205833 Method and circuit for reduced setting time in an amplifier |
| 04/17/2007 | US7205610 Source follower circuit or bootstrap circuit, driver circuit comprising such circuit, and display device comprising such driver circuit |
| 04/12/2007 | WO2007005150A3 System for reducing calibration time of a power amplifier |
| 04/12/2007 | WO2007002944A3 Temperature-independent amplifier offset trim circuit |
| 04/12/2007 | US20070081827 Optical receiver for regeneration of optical signal |
| 04/12/2007 | US20070080750 High efficiency amplifiers having multiple amplification paths |
| 04/12/2007 | US20070080747 Composite power amplifier |
| 04/12/2007 | US20070080746 Glitch-free controllable rf power amplifier |
| 04/12/2007 | US20070080745 Audio amplifier |
| 04/12/2007 | US20070080736 Off-Chip LC Circuit for Lowest Ground and VDD Impedance for Power Amplifier |
| 04/12/2007 | DE102005047171A1 Schaltungsanordnung mit einem rückgekoppelten Operationsverstärker Circuit arrangement having a feedback operational amplifier |
| 04/11/2007 | EP1771944A1 Ad class audio amplifier |
| 04/11/2007 | EP1771943A2 Single supply direct drive amplifier |
| 04/11/2007 | EP1293035B1 Level shifter for switching power amplifier |