| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 06/14/2005 | US6906578 Control loop compensation circuit and method |
| 06/14/2005 | US6906557 Fuse sense circuit |
| 06/14/2005 | US6906325 Photo-receiver arrangement |
| 06/14/2005 | US6906306 Photodiode optical power monitor |
| 06/09/2005 | WO2005053155A1 Modified polar amplifier architecture |
| 06/09/2005 | WO2005053150A2 An operational amplifier selecting one of inputs, and an amplifying apparatus using the op amplifier the verification method |
| 06/09/2005 | US20050124303 Compensating for load pull in electromagentic signal propagation using adaptive impedance matching |
| 06/09/2005 | US20050123307 Optical receiver and data communication apparatus comprising same |
| 06/09/2005 | US20050122241 Word length reduction circuit |
| 06/09/2005 | US20050122183 Pulse width modulator circuit having negative bias |
| 06/09/2005 | US20050122173 Millimeter-wave unilateral low-noise amplifier |
| 06/09/2005 | US20050122172 Biased Darlington transistor pair, method, and system |
| 06/09/2005 | US20050122170 Op-amp configurable in a non-inverting mode with a closed loop gain greater than one with output voltage correction for a time varying voltage reference of the op-amp, and a method for correcting the output voltage of such an op-amp for a time varying voltage refer |
| 06/09/2005 | US20050122169 Class D amplifier |
| 06/09/2005 | US20050122168 Overcurrent protection in amplifier topologies employing DC isolation |
| 06/09/2005 | US20050122164 Single chip power amplifier and envelope modulator |
| 06/09/2005 | US20050122163 EER modulator with power amplifier having feedback loop providing soft output impedance |
| 06/09/2005 | US20050122162 Volume adjustment device, digital amplifier, and digital signal reproducing device |
| 06/09/2005 | US20050122161 Active filter circuit using gm amplifier, and data read circuit, data write circuit and data reproducing device using the same |
| 06/09/2005 | US20050122139 Current drive circuit reducing VDS dependency |
| 06/09/2005 | US20050122087 Power supply device and electronic equipment comprising same |
| 06/09/2005 | DE19824768B4 Leistungsverstärker und Verfahren zum Ansteuern eines Leistungsverstärkers Power amplifier and method for driving a power amplifier |
| 06/09/2005 | DE10353965A1 Verstärker mit endstufen-gesteuerter Regelung Amplifier output stages-controlled regulation |
| 06/09/2005 | DE10353790A1 Elektrische Baugruppe, insbesondere Gleichstromverstärker Electrical assembly, in particular direct current amplifier |
| 06/09/2005 | DE102004053675A1 Eingangsschaltung Input circuit |
| 06/09/2005 | DE102004043241A1 Transimpedanzverstärker mit veränderbarer Ausgangsamplitude und weitem Eingangsdynamikbereich Transimpedance amplifier with adjustable output amplitude and wide input dynamic range |
| 06/09/2005 | DE102004038851A1 Monolithisch integrierter Leistungsverstärker Monolithic integrated power amplifier |
| 06/09/2005 | DE102004009684A1 Transimpedance amplifier system for high switching frequency for integrated optical sensors for read-out of compact (CD) and digital versatile discs (DVD) etc., with current input and output voltage dependent on input current |
| 06/08/2005 | EP1538744A1 Gain-controlled amplifier, receiver circuit and radio communication device |
| 06/08/2005 | EP1538743A1 Amplifier |
| 06/08/2005 | EP1537654A1 Operational amplifier |
| 06/08/2005 | EP1537653A1 Linear amplification device with a non-linear amplification element for a mobile radio device |
| 06/08/2005 | EP1537652A2 Photodetector arrangement and method for stray light compensation |
| 06/08/2005 | EP1537651A1 System and method for establishing a bias current using a feedback loop |
| 06/08/2005 | CN1625834A Output circuit for a semiconductor amplifier element |
| 06/08/2005 | CN1625060A Signal transmitter |
| 06/08/2005 | CN1625055A Word length reduction circuit |
| 06/08/2005 | CN1625050A Active filter circuit using gm amplifier, and data read circuit, data write circuit and data reproducing device using the same |
| 06/08/2005 | CN1205741C High frequency amplifier |
| 06/08/2005 | CN1205618C Track and hold amplifier |
| 06/07/2005 | US6904271 High-frequency-signal switching circuit suppressing high-frequency-signal distortion |
| 06/07/2005 | US6903619 Electromagnetic wave transmitter systems, methods and articles of manufacture |
| 06/07/2005 | US6903612 Tunable low noise amplifier |
| 06/07/2005 | US6903610 Operational amplifying circuit and push-pull circuit |
| 06/07/2005 | US6903609 Operational amplifier |
| 06/07/2005 | US6903608 Power level controlling of first amplification stage for an integrated RF power amplifier |
| 06/07/2005 | US6903607 Operational amplifier |
| 06/07/2005 | US6903606 DC offset correction using unused LNA |
| 06/07/2005 | US6903605 Offset cancellation techniques that utilize one of a plurality of offset cancellation sources |
| 06/07/2005 | US6903593 Gain amplifier with DC offset cancellation circuit |
| 06/07/2005 | US6903383 Semiconductor device having a high breakdown voltage for use in communication systems |
| 06/02/2005 | WO2005050833A1 Amplifier circuit |
| 06/02/2005 | WO2005050832A1 Amplifier provided with a regulation system controlled by the output stage |
| 06/02/2005 | WO2005050830A1 Electrical module, especially a direct-current amplifier |
| 06/02/2005 | WO2005050829A2 Overcurrent protection in amplifier topologies employing dc isolation |
| 06/02/2005 | WO2005040043A3 Transducer preamplifier and coupling device |
| 06/02/2005 | WO2005018041A3 Low noise, electric field sensor |
| 06/02/2005 | US20050118980 Variable rate RC calibration circuit with filter cut-off frequency programmability |
| 06/02/2005 | US20050118965 Signal transmitter |
| 06/02/2005 | US20050116779 Method to reduce unwanted oscillations in high speed, high gain or transimpedance amplifiers |
| 06/02/2005 | US20050116778 Integrated preamplifier circuit for detecting a signal current from a photodiode |
| 06/02/2005 | US20050116777 Multistage differential amplifier |
| 06/02/2005 | US20050116775 Digital memory-based predistortion technique |
| 06/02/2005 | US20050116774 Method and system for implementing autonomous automatic gain control in a low noise broadband distribution amplifier |
| 06/02/2005 | US20050116772 Minimizing changes in the amplification factor of an amplification circuit during operation |
| 06/02/2005 | US20050116771 Power amplification circuits |
| 06/02/2005 | US20050116770 Multi-reference switching amplifier modulation method and apparatus |
| 06/02/2005 | US20050116769 Sensor device and a signal amplification device of a small detection signal provided by the sensor |
| 06/02/2005 | US20050116768 Amplifier or filter circuit in switched capacitor circuit logic and method for amplifying or filtering signals |
| 06/02/2005 | US20050116766 Bias voltage generator circuit |
| 06/02/2005 | US20050116761 Clamping circuit |
| 06/02/2005 | US20050116760 Enhancing SNR and throughput performance of integrated circuits |
| 06/01/2005 | EP1536556A2 Switching amplifier architecture |
| 06/01/2005 | CN2703363Y Antenna signal amplifier |
| 06/01/2005 | CN1623282A Communication apparatus |
| 06/01/2005 | CN1623281A High-frequency power amplifier circuit and electronic part for communication |
| 06/01/2005 | CN1623277A N-way RF power amplifier circuit with increased back-off capability and power added efficiency |
| 06/01/2005 | CN1623276A Differential input stage for electronic equipment, comprising means for reducing interference caused by a voltage or current in common mode |
| 06/01/2005 | CN1623275A Distortion compensator |
| 06/01/2005 | CN1623274A RF output power control |
| 06/01/2005 | CN1623248A Switchable mixer and integrated merging equipment for using said mixer |
| 06/01/2005 | CN1623232A RF amplifier |
| 06/01/2005 | CN1622459A CMOS comparator |
| 06/01/2005 | CN1622450A 放大器 Amplifier |
| 06/01/2005 | CN1204682C Linear power amplifier and multi-carrier power amplifying method and system |
| 06/01/2005 | CN1204681C Single end point sensing amplifier |
| 05/31/2005 | US6900839 High gain detector amplifier with enhanced dynamic range for single photon read-out of photodetectors |
| 05/31/2005 | US6900698 Negative feedback amplifier with electrostatic discharge protection circuit |
| 05/31/2005 | US6900696 Shared-current electronic systems |
| 05/31/2005 | US6900695 Reconfigurable broadband active power splitter ditto power combiner and ditto bidirectional power splitter/power combiner and circuits based on these |
| 05/31/2005 | US6900694 High frequency power amplifier module and wireless communication apparatus |
| 05/31/2005 | US6900693 Power amplifying apparatus and radio communications apparatus using same |
| 05/31/2005 | US6900687 Circuitry and method to provide a high speed comparator for an input stage of a low-voltage differential signal receiver circuit |
| 05/31/2005 | US6900671 Current-voltage conversion circuit |
| 05/31/2005 | US6900668 High speed single ended sense amplifier with built-in multiplexer |
| 05/26/2005 | WO2005048457A2 Delta-sigma digital-to-analog converter assembly |
| 05/26/2005 | WO2005048456A2 Multi-level pulse width modulation in digital system |
| 05/26/2005 | WO2005048448A1 High frequency amplifier |
| 05/26/2005 | WO2005048300A2 Electronically programmable multimode circuit |
| 05/26/2005 | WO2005034338A3 Method for aligning feed forward loops |