| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 03/27/2002 | EP0758501B1 Adaptive predistorter |
| 03/27/2002 | CN1341992A Predistortion digital linearizing circuit and gain control method |
| 03/27/2002 | CN1081850C Power amplifier and communication device |
| 03/26/2002 | US6363120 Apparatus and method for extending the dynamic range of a mixer using feed forward distortion reduction |
| 03/26/2002 | US6362910 Optical transmitter having temperature compensating function and optical transmission system |
| 03/26/2002 | US6362708 Dielectric resonator tuning device |
| 03/26/2002 | US6362690 System and method for closed loop VSWR correction and tuning in RF power amplifiers |
| 03/26/2002 | US6362683 Break-before-make distortion compensation for a digital amplifier |
| 03/26/2002 | US6362655 Linear active resistor and driver circuit incorporating the same |
| 03/21/2002 | WO2002023718A2 Self-tuned millimeter wave rf transceiver module |
| 03/21/2002 | WO2002023711A1 Power oscillator |
| 03/21/2002 | WO2002023692A2 Voltage clamping circuit |
| 03/21/2002 | WO2002023634A2 Cmos transceiver having an integrated power amplifier |
| 03/21/2002 | US20020035449 Model for spectral and chromatographic data |
| 03/21/2002 | US20020034294 Low voltage broadband line driver |
| 03/21/2002 | US20020034260 Adaptive predistortion transmitter |
| 03/21/2002 | US20020033735 Power amplifier and radio communication apparatus using the same |
| 03/21/2002 | US20020033734 Self-oscillating variable frequency closed loop class d amplifier |
| 03/21/2002 | US20020033508 Semiconductor device and method for fabricating the same |
| 03/20/2002 | EP1189341A2 Amplifier circuit |
| 03/20/2002 | EP1189340A1 system and method for producing an amplified signal with reduced distortion |
| 03/20/2002 | EP1189339A1 System and method for producing a pilot signal in a distortion reduction system |
| 03/20/2002 | EP1188238A1 Amplifier |
| 03/20/2002 | EP1188234A1 Circuit array for adapting an amplifier to a high frequency line and utilization of said circuit array |
| 03/20/2002 | EP1188232A1 Power amplifier driver system for wireless handset |
| 03/20/2002 | EP1188231A1 Amplifier circuit |
| 03/20/2002 | EP0880822A4 Method and apparatus providing limiting transimpedance amplification |
| 03/20/2002 | EP0685125B1 Cross-conduction prevention circuit for power amplifier output stage |
| 03/20/2002 | CN1340912A Control method and control circuit for power amplifier using heterojunction double-electrode transistor |
| 03/20/2002 | CN1340911A Method and device for distortion compensation |
| 03/20/2002 | CN1340858A 半导体器件 Semiconductor devices |
| 03/19/2002 | US6359518 Signal level adjusting circuit using coupling stage for preventing variation from resulting in each operating point of first amplifying stage and second amplifying stage |
| 03/19/2002 | US6359516 High-frequency amplifier circuit with independent control of quiescent current and bias impedance |
| 03/19/2002 | US6359514 Switchable path power amplifier with combining network |
| 03/19/2002 | US6359513 CMOS power amplifier with reduced harmonics and improved efficiency |
| 03/19/2002 | US6359512 Slew rate boost circuitry and method |
| 03/19/2002 | US6359511 System and method for current splitting for variable gain control |
| 03/19/2002 | US6359510 Amplifier circuit |
| 03/19/2002 | US6359509 Balanced error correction amplifier and method of removing distortion from an amplified signal |
| 03/19/2002 | US6359508 Distortion detection apparatus for controlling predistortion, carrier cancellation and feed-forward cancellation in linear RF power amplifiers |
| 03/19/2002 | US6359507 Method and apparatus for an automatic predistortion system |
| 03/19/2002 | US6359506 Linear modulation using a linear and a non-linear amplifier |
| 03/19/2002 | US6359505 Complementary pair-configured telecommunication line driver having synthesized output impedance |
| 03/19/2002 | US6359504 Power amplifier using upstream signal information |
| 03/19/2002 | US6359499 Temperature and process independent CMOS circuit |
| 03/19/2002 | US6359498 Temperature compensation AGC circuit with temperature characteristic of AGC voltage |
| 03/19/2002 | US6359491 Voltage level shifter and poly-silicon display |
| 03/14/2002 | WO2002021685A1 High-frequency amplifier, feed-forward amplifier and distortion compensation amplifier |
| 03/14/2002 | WO2002021683A1 Off-line mcpa calibration |
| 03/14/2002 | WO2002021682A1 High gain low power op amp for driving the flat panel display |
| 03/14/2002 | WO2001059923A3 Amplifier arrangement |
| 03/14/2002 | WO2001058011A3 Adaptive controller |
| 03/14/2002 | WO2001035526A3 Improved floating, balanced output circuit |
| 03/14/2002 | US20020030545 Concurrent multi-band low noise amplifier architecture |
| 03/14/2002 | US20020030543 Power amplifier with multiple power supplies |
| 03/14/2002 | US20020030541 High frequency power amplifier module and wireless communication apparatus |
| 03/14/2002 | US20020030515 Very low-power comparison device |
| 03/13/2002 | EP1187316A1 Method and Control Circuit for Use of a HBT Transistor Power Amplifier in a Transmitter Using Zero IF Architecture |
| 03/13/2002 | EP1187311A1 Amplifying device with optimised linearity |
| 03/13/2002 | EP1187208A2 Semiconductor device |
| 03/13/2002 | EP1186149A1 Loop driver for pots, xdsl, or integrated pots/xdsl interface |
| 03/13/2002 | EP1186097A1 Amplifier circuit |
| 03/13/2002 | EP1186071A1 Delay line filter |
| 03/13/2002 | EP0722626B1 Signal conditioning apparatus and method exhibiting accurate input impedance and gain characteristics over common mode range and operational environments |
| 03/13/2002 | CN1080951C DC offset compensation device |
| 03/12/2002 | US6356743 Device for linearizing transmitter amplifiers |
| 03/12/2002 | US6356217 Enhanced DC offset correction through bandwidth and clock speed selection |
| 03/12/2002 | US6356149 Tunable inductor circuit, phase tuning circuit and applications thereof |
| 03/12/2002 | US6356146 Amplifier measurement and modeling processes for use in generating predistortion parameters |
| 03/12/2002 | US6356121 Very low-power comparison device |
| 03/07/2002 | WO2002019564A2 Method and apparatus for plurality signal generation |
| 03/07/2002 | WO2002019545A2 System for closed loop power control using a linear or a non-linear power amplifier |
| 03/07/2002 | WO2002019519A1 Power amplifier module |
| 03/07/2002 | WO2002019518A1 Multistage amplifier |
| 03/07/2002 | WO2002019517A2 Power amplifier saturation detection and compensation |
| 03/07/2002 | WO2001039366A3 Circuit that operates in a manner substantially complementary to an amplifying device included therein and apparatus incorporating same |
| 03/07/2002 | US20020028664 Control method and circuit for using a heterojunction bipolar transistor power amplifier in a zero intermediate frequency architecture transmitter |
| 03/07/2002 | US20020027961 Off-line MCPA calibration |
| 03/07/2002 | US20020027958 Feedback channel signal recovery |
| 03/07/2002 | US20020027808 Differential output circuit |
| 03/07/2002 | US20020027477 Microwave amplifying circuit, microwave amplifying device, and distortion compensation circuit |
| 03/07/2002 | US20020027475 Low-noise amplifier, in particular for a cellular mobile telephone |
| 03/07/2002 | US20020027474 Swept performance monitor for measuring and correcting RF power amplifier distortion |
| 03/07/2002 | US20020027473 Distortion compensating device and distortion compensating method |
| 03/07/2002 | US20020027458 Low power digital input circuit |
| 03/07/2002 | DE10045721C1 Differential line driver circuit has symmetrical arrangement of 2 operational amplifiers with coupling resistance between each circuit output and inverting input of opposite amplifier |
| 03/07/2002 | DE10040092A1 Schaltungsanordnung zur Erkennung eines Fehlerzustands Circuit arrangement for the detection of an error condition |
| 03/07/2002 | DE10039438A1 Zweistufiger Operationsverstärker Two-stage operational amplifier |
| 03/07/2002 | DE10038374A1 Treiberschaltung für Teilnehmerendgeräte Driver circuit for subscriber terminals |
| 03/07/2002 | CA2420912A1 Power amplifier saturation detection and compensation |
| 03/07/2002 | CA2420687A1 System for closed loop power control using a linear or a non-linear power amplifier |
| 03/06/2002 | EP1185009A2 Leak power ratio detection circuit, mobile communication terminal, and control circuit for mobile communication terminal |
| 03/06/2002 | EP1184973A1 Power amplification equipment |
| 03/06/2002 | EP1183776A1 Power modulation systems and methods that separately amplify low and high frequency portions of an amplitude waveform |
| 03/06/2002 | CN2481056Y Current type synchronous ultra-A type deflecting compensator |
| 03/06/2002 | CN1080480C Idle current correcting circuit and low voltage drive type electronic appliance |
| 03/05/2002 | US6353367 Cascode amplifier integrated circuit with reduced miller capacitance at an output buffer stage during a transient fall response |
| 03/05/2002 | US6353366 Bandwidth enhancement of transimpedance amplifier by capacitive peaking design |
| 03/05/2002 | US6353360 Linearized power amplifier based on active feedforward-type predistortion |
| 03/05/2002 | US6353359 Training scheme for high efficiency amplifier |