| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 09/22/2004 | CN1168204C Dynamially synchronous voltage-biased power amplifier |
| 09/21/2004 | US6795843 Low-distortion differential circuit |
| 09/21/2004 | US6795004 Delta-sigma modulation apparatus and signal amplification apparatus |
| 09/21/2004 | US6794943 Ultra linear high speed operational amplifier output stage |
| 09/21/2004 | US6794942 Electrical circuits |
| 09/21/2004 | US6794941 Gain-controlled amplifier with fixed minimum gain |
| 09/21/2004 | US6794940 Operational amplifier circuit |
| 09/21/2004 | US6794937 Predistortion linearizer and method for linearizing a nonlinear device |
| 09/21/2004 | US6794935 Power amplification circuit and method for supplying power at a plurality of desired power output levels |
| 09/21/2004 | US6794934 High gain wideband driver amplifier |
| 09/21/2004 | US6794932 Class D switching audio amplifier |
| 09/21/2004 | US6794930 Signal quality |
| 09/16/2004 | WO2004079898A1 Transimpedance amplifier with a high gain bandwidth for converting a dac-output current |
| 09/16/2004 | WO2004079897A2 High efficiency emitter for incandescent light sources |
| 09/16/2004 | WO2004079896A2 Multi-output amplifier with isolation between outputs |
| 09/16/2004 | WO2004079773A2 High efficiency emitter for incandescent light sources |
| 09/16/2004 | WO2004064005A3 Circuit arrangements and methods for a remote control receiver having a photodiode |
| 09/16/2004 | WO2004062093A3 Common gate with resistive feed-through low noise amplifier |
| 09/16/2004 | WO2004027985A3 Photodetector arrangement and method for stray light compensation |
| 09/16/2004 | US20040179703 Modifiable buffer circuit for miniature microphone applications and method of adjusting thereof |
| 09/16/2004 | US20040179702 Transducer assembly with modifiable buffer circuit and method for adjusting thereof |
| 09/16/2004 | US20040178854 Semiconductor device having balanced circuit for use in high frequency band |
| 09/16/2004 | US20040178853 Rf power amplifier with low intermodulation distortion and reduced memory effect |
| 09/16/2004 | US20040178850 Variable gain differential amplifier and multiplication circuit |
| 09/16/2004 | US20040178847 Method and system for monitoring a deliverable radio frequency power of an amplifier operable on a monolithic microwave integrated circuit |
| 09/16/2004 | US20040178846 Compensation of offset drift with temperature for operational amplifiers |
| 09/16/2004 | US20040178843 [slew rate enhancement circuit via dynamic output stage] |
| 09/16/2004 | US20040178839 Apparatus for correcting offset voltage |
| 09/16/2004 | US20040178831 [source follower capable of compensating the threshold voltage] |
| 09/16/2004 | US20040178742 Current drive system |
| 09/16/2004 | US20040178497 Semiconductor integrated circuit |
| 09/16/2004 | DE10309877A1 Transimpedanzverstärker mit hoher Verstärkungsbandbreite zum Konvertieren eines DAC-Ausgangsstroms Transimpedance amplifier with high gain-bandwidth for converting an output current DAC |
| 09/16/2004 | DE10300011B4 Subtrahiererschaltung und Leistungsdetektoranordnung mit der Subtrahiererschaltung Subtractor circuit and power detector arrangement with the subtractor circuit |
| 09/15/2004 | EP1458091A2 Rail-to-rail input / output operational amplifier and method |
| 09/15/2004 | EP1458090A1 Electronic integrated circuit comprising a differential amplifier with digital compensation of the DC offset voltage |
| 09/15/2004 | EP1456944A1 Synchronized controlled oscillation modulator |
| 09/15/2004 | EP1456943A1 Attenuation control for digital power converters |
| 09/15/2004 | EP1456942A1 Time division multiplexed pwm amplifier |
| 09/15/2004 | EP1456941A1 Offset calibration system and method for a high gain signal channel |
| 09/15/2004 | EP1101280B1 A set-up method for a linearising circuit |
| 09/15/2004 | EP0935849B1 Low-impedance cmos output stage and method |
| 09/15/2004 | CN1529936A Dynamic biasing of transmitter |
| 09/15/2004 | CN1529935A Triple class E. Doherty amplifier topology for hight efficiency signal transmitters |
| 09/15/2004 | CN1529934A Preamplification circuit |
| 09/15/2004 | CN1529408A Low-Volage high-linearity radio-frequency amplifier for on-chip impedance match |
| 09/15/2004 | CN1167188C Amplifier |
| 09/14/2004 | US6792251 Arrangement and method for improving multi-carrier power amplifier efficiency |
| 09/14/2004 | US6792121 Audio signal amplifier circuit and portable telephone set and portable electronic device using the same audio signal amplifier circuit |
| 09/14/2004 | US6792105 Current-mode differential active hybrid circuit |
| 09/14/2004 | US6792062 Differential phase-locked-loop circuit |
| 09/14/2004 | US6791419 Constant gain, constant phase RF power block |
| 09/14/2004 | US6791417 N-way RF power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances |
| 09/14/2004 | US6791415 Integrated circuit arrangement with a transconductance amplifier |
| 09/14/2004 | US6791413 Variable gain amplifier with a gain exhibiting a linear in dB characteristic relative to a control voltage |
| 09/14/2004 | US6791412 Differential amplifier output stage |
| 09/14/2004 | US6791411 Power amplifier and a method for operating a power amplifier |
| 09/14/2004 | US6791408 System and method for noise and spurious suppression in power amplifier systems |
| 09/14/2004 | US6791407 Switchable power amplifier |
| 09/14/2004 | US6791405 Triangular wave generating circuit used in a Class-D amplifier |
| 09/14/2004 | US6791404 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 09/14/2004 | US6791397 Constant current circuit for controlling variation in output current duty caused by the input capacitance of a current mirror circuit |
| 09/14/2004 | US6791378 Charge recycling amplifier for a high dynamic range CMOS imager |
| 09/14/2004 | US6791377 LVDS driver in bipolar and MOS technology |
| 09/14/2004 | US6791368 Current sensing circuit and method of a high-speed driving stage |
| 09/14/2004 | US6791309 Limiter circuit |
| 09/14/2004 | US6791308 Internal power supply for an integrated circuit having a temperature compensated reference voltage generator |
| 09/10/2004 | WO2004077666A1 Gain variable voltage/current conversion circuit and filter circuit using the same |
| 09/10/2004 | WO2004077665A1 Limiter amplifier |
| 09/10/2004 | WO2004077664A1 A method and a device for adjusting power amplifier properties |
| 09/10/2004 | WO2004077663A1 Integrated amplifier arrangement |
| 09/10/2004 | WO2004077662A1 Power amplifying device for communication system |
| 09/10/2004 | WO2004077661A1 Power amplifying device |
| 09/10/2004 | WO2004077402A1 Dip filter frequency characteristic decision method |
| 09/10/2004 | WO2004057666A3 Rf power transistor with internal bias feed |
| 09/10/2004 | WO2004034667A3 Electromagnetic wave trasmitter systems, methods and articles of manufacture |
| 09/10/2004 | WO2004027986A3 Dc-compensation loop for variable gain amplifier |
| 09/09/2004 | US20040177201 Hot swap power delivery circuit |
| 09/09/2004 | US20040176053 Mobile telecommunication apparatus having a power amplifier which operates stably during changes in control voltage and temperature |
| 09/09/2004 | US20040174281 Current-steering/reproducing digital-to-analog current converter |
| 09/09/2004 | US20040174280 Device for processing an optical signal |
| 09/09/2004 | US20040174231 High-frequency semiconductor device |
| 09/09/2004 | US20040174221 Preamplification circuit |
| 09/09/2004 | US20040174220 Tunable power amplifier matching circuit |
| 09/09/2004 | US20040174219 High frequency power amplifier module and wireless communication apparatus |
| 09/09/2004 | US20040174217 Method and device for switch-on current limiting in push-pull amplifying power stages |
| 09/09/2004 | US20040174216 Highly linear low voltage rail-to-rail input/output operational amplifier |
| 09/09/2004 | US20040174215 Wide common mode differential input amplifier and method |
| 09/09/2004 | US20040174214 Accurate power detection for a multi-stage amplifier |
| 09/09/2004 | US20040174210 Offset cancellation techniques that utilize one of a plurality of offset cancellation sources |
| 09/09/2004 | US20040174190 Latched sense amplifier with full range differential input voltage |
| 09/09/2004 | US20040174170 Method and apparatus for measuring voltage of battery module of electric vehicle |
| 09/09/2004 | US20040173879 High-frequency power amplifier |
| 09/09/2004 | US20040173729 Photoreceptor |
| 09/09/2004 | DE10308848A1 Integrierte Verstärkeranordnung Integrated amplifier arrangement |
| 09/08/2004 | EP1455451A2 Device for optical signal processing |
| 09/08/2004 | EP1455446A1 Sensor signal output circuit |
| 09/08/2004 | EP1455445A1 Digital amplification device |
| 09/08/2004 | EP1454411A1 Image display apparatus and high voltage driver circuit |
| 09/08/2004 | EP1396079A4 Multi-level power amplifier |
| 09/08/2004 | EP1192717B1 Method and apparatus for efficient mixed signal processing in a digital amplifier |