| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 01/31/2002 | US20020011878 Current-to-voltage converting circuit, optical pickup head apparatus, and apparatus and method for recording/reproducing data |
| 01/31/2002 | US20020011877 Input buffer circuit |
| 01/31/2002 | US20020011875 Cmos buffer for driving a large capacitive load |
| 01/31/2002 | DE10034987A1 Electronic amplifier with feedback has part of output signal back to linearize frequency characteristic, reduce distortion; not all, but at least one output stage has feedback line to amplifier |
| 01/30/2002 | EP1176777A2 Predistortion of quadrature signals |
| 01/30/2002 | EP1176711A2 Apparatus and method for electrical signal amplification |
| 01/30/2002 | EP1176710A2 A predistortion circuit |
| 01/30/2002 | EP1175774A1 Circuit for processing a time-discrete analog signal and image sensor |
| 01/30/2002 | EP1175726A1 Method and apparatus for controlling the common mode impedance misbalance of an isolated single-ended circuit |
| 01/30/2002 | EP1175725A1 Adaptive linearizer for rf power amplifiers |
| 01/30/2002 | CN1333635A Method and device for amplifying transmission power |
| 01/30/2002 | CN1078780C High-gain amplifier circuit |
| 01/29/2002 | US6342815 Manufacturable HBT power distributed amplifier for wideband telecommunications |
| 01/29/2002 | US6342814 Operational amplifier |
| 01/29/2002 | US6342813 Variable gain amplifier |
| 01/29/2002 | US6342811 Integrated power amplifier which allows parallel connections |
| 01/29/2002 | US6342809 Closed loop circuit switch mode power amplifier |
| 01/24/2002 | WO2002007307A2 Differential amplifiers having beta compensation biasing circuits therein |
| 01/24/2002 | WO2002007306A1 Amplifier circuit |
| 01/24/2002 | US20020010567 Distortion compensation method and apparatus |
| 01/24/2002 | US20020009980 Bias circuit and radio communication apparatus using same |
| 01/24/2002 | US20020009979 Distortion-compensating apparatus |
| 01/24/2002 | US20020008595 Radio-frequency composite element |
| 01/24/2002 | US20020008584 Capacitor bias recovery methodology |
| 01/24/2002 | US20020008583 Distributed amplifier with terminating circuit capable of improving gain flatness at low frequencies |
| 01/24/2002 | US20020008581 Circuit for automatic regulation of a differential amplifier's gain |
| 01/24/2002 | US20020008580 Automatic gain control circuit, and optical receiver using the same |
| 01/24/2002 | US20020008576 Transmission power amplification method and apparatus |
| 01/24/2002 | US20020008574 Apparatus and method for efficiently amplifying wideband envelope signals |
| 01/24/2002 | US20020008562 Operational amplifier and its offset cancel circuit |
| 01/24/2002 | US20020008553 High frequency circuit |
| 01/24/2002 | US20020008550 Sense amplifier of semiconductor integrated circuit |
| 01/24/2002 | US20020008549 Pseudo-differential current sense amplifier with hysteresis |
| 01/24/2002 | DE10128570A1 Method for giving an improved slew rate in amplifying circuits uses an amplifier circuit with an output stage and an input stage for delivering a current with a fixed maximum value to the output stage. |
| 01/24/2002 | DE10032530A1 Verstärkerschaltung mit Offsetkompensation Amplifier circuit with offset compensation |
| 01/23/2002 | EP1175090A1 Signal transfer circuitry with offset correction |
| 01/23/2002 | EP1175003A2 Capacitor bias recovery methodology |
| 01/23/2002 | EP1174720A2 Current sensing circuit |
| 01/23/2002 | EP1173923A1 Differential pair provided with degeneration means for degenerating a transconductance of the differential pair |
| 01/23/2002 | CN1332518A Amplifier |
| 01/22/2002 | US6340917 Broad frequency band linearization device |
| 01/22/2002 | US6340916 Ransimpedance amplifier circuit |
| 01/22/2002 | US6340911 Level conversion circuit having differential circuit employing MOSFET |
| 01/22/2002 | US6340899 Current-controlled CMOS circuits with inductive broadbanding |
| 01/22/2002 | CA2244720C Charge sensitive amplifier with high common mode signal rejection |
| 01/17/2002 | WO2002005588A2 Power amplification for parametric loudspeakers |
| 01/17/2002 | WO2002005422A1 An electrical arrangement having improved feedback stability |
| 01/17/2002 | WO2002005421A1 Transmitter including a composite amplifier |
| 01/17/2002 | WO2002005420A1 Transmitter including a composit amplifier |
| 01/17/2002 | WO2002005419A2 Class d audio amplifier |
| 01/17/2002 | WO2002005261A2 Dynamic power sharing in a multi-channel sound system |
| 01/17/2002 | US20020006205 Method and apparatus for high fidelity wireless stereophonic transmission utilizing dual frequency carriers |
| 01/17/2002 | US20020005761 Semiconductor circuit with a stabilized gain slope |
| 01/17/2002 | US20020005759 Ultra complementary audio amplifier output stage |
| 01/17/2002 | US20020005758 Signal conversion circuit for stable differential amplification and semiconductor device provided with the same as input buffer |
| 01/17/2002 | US20020005757 Fully differential operational amplifier of the folded cascode type |
| 01/17/2002 | US20020005756 Enhanced slew rate in amplifier circuits |
| 01/17/2002 | US20020005754 Charge-type sensor amplifying circuit |
| 01/17/2002 | US20020005753 Class D audio amplifier |
| 01/17/2002 | US20020005749 Method for generating a substantially temperature independent current and device allowing implementation of the same |
| 01/17/2002 | US20020005738 Transconductance amplifier circuit |
| 01/17/2002 | US20020005525 Semiconductor device and power amplifier using the same |
| 01/17/2002 | DE10031522A1 Frequency compensated, multistage amplifier design, includes inverting chopper modulator operating in phase with separate Miller feedback capacitors |
| 01/17/2002 | CA2414501A1 Dynamic power sharing in a multi-channel sound system |
| 01/17/2002 | CA2414491A1 Power amplification for parametric loudspeakers |
| 01/16/2002 | EP1172929A1 Low noise amplifier arrangement especially for cellular mobile telephone |
| 01/16/2002 | EP1171950A1 System and method for converting from single-ended to differential signals |
| 01/15/2002 | US6339363 Low FPN high gain capacitive transimpedance amplifier for use with capacitive sensors |
| 01/15/2002 | US6339362 Microwave amplifier optimized for stable operation |
| 01/15/2002 | US6339361 Power amplifier driver system for wireless handset |
| 01/15/2002 | US6339360 Digital amplifier with pulse insertion circuit |
| 01/15/2002 | US6339355 Offsetting comparator device and comparator circuit |
| 01/15/2002 | CA2251345C Circular stripline package incorporating a low noise amplifier |
| 01/10/2002 | WO2002003547A1 Amplifier with output transformer |
| 01/10/2002 | WO2002003546A1 High-frequency amplifier |
| 01/10/2002 | WO2002003545A1 High-frequency amplifier |
| 01/10/2002 | WO2002003544A1 High-frequency amplifier |
| 01/10/2002 | WO2002003543A1 High-frequency amplifier |
| 01/10/2002 | WO2002003542A2 System and method for noise and spurious suppression in power amplifier systems |
| 01/10/2002 | WO2002003541A2 Digitally modulated rf amplifier system having reduced intermodulation energy at rf channel edges |
| 01/10/2002 | WO2002003087A1 Amplifier circuit with offset compensation |
| 01/10/2002 | WO2001037421A3 High efficiency power amplifier |
| 01/10/2002 | WO2001003303A3 Method and apparatus for efficient mixed signal processing in a digital amplifier |
| 01/10/2002 | US20020003446 Semiconductor integrated circuit device having an oscillation circuit using reference current source independent from influence of variation of power supply voltage and threshold voltage of transistor |
| 01/10/2002 | US20020003441 Wide-bandwidth operational amplifier |
| 01/09/2002 | EP1170859A2 Distortion compensation method and apparatus |
| 01/09/2002 | EP1170858A2 Linear amplifying equipment |
| 01/09/2002 | EP1169776A1 Biasing arrangement for field effect transistors |
| 01/09/2002 | CN1330500A Circuit of effective generating low-power radio frequency signal |
| 01/09/2002 | CN1330458A Active biased network circuir for radio frequency amplifier |
| 01/09/2002 | CN1077746C Output power controller |
| 01/09/2002 | CN1077741C Oscillation circuit and oscillation method |
| 01/08/2002 | US6338032 System and method for trimming IC parameters |
| 01/08/2002 | US6337887 Burst receiving circuit and control method thereof |
| 01/08/2002 | US6337596 Constant current circuit using current mirror circuit |
| 01/08/2002 | US6337591 Circuitry for a high voltage linear current sense IC |
| 01/08/2002 | US6337586 Differential transmission driver circuit |
| 01/08/2002 | US6337585 Transconductor |
| 01/03/2002 | WO2002001712A1 Self-configurable amplifier circuit |
| 01/03/2002 | WO2002001711A1 Frequency-compensated multistage amplifier arrangement and method for operating a frequency-compensated amplifier arrangement |