| 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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| 12/30/2010 | DE102005032093B4 Verstärkeranordnung Amplifier arrangement |
| 12/29/2010 | WO2010151889A2 Rf single-ended to differential converter |
| 12/29/2010 | WO2010151557A1 Method and apparatus for using pre-distortion and feedback to mitigate nonlinearity of circuits |
| 12/29/2010 | WO2010151270A1 Even-order harmonics calibration |
| 12/29/2010 | WO2010150658A1 Amplifier circuit, integrating circuit, and light-detection device |
| 12/29/2010 | EP2267897A1 Input/output buffer |
| 12/29/2010 | EP2267885A1 Doherty amplifier |
| 12/29/2010 | EP2266204A1 Differential rf amplifier |
| 12/29/2010 | EP2266203A1 Integrated circuitand corresponding method of processing a multitype radio frequency digital signal |
| 12/29/2010 | EP2266202A2 Combination offset voltage and bias current auto-zero circuit |
| 12/29/2010 | CN201690418U Novel D-type power amplifier based on clock edge adjustment |
| 12/29/2010 | CN201690416U Feedforward power amplifier for narrow-band communication system |
| 12/29/2010 | CN201690415U PA power amplification module of digital microwave remote system |
| 12/29/2010 | CN1942016B Chargeable circuit, integrated circuit and controlling method |
| 12/29/2010 | CN101933228A Lna having a post-distortion mode and a high-gain mode |
| 12/29/2010 | CN101933224A System and method of reducing click and pop noise in audio playback devices |
| 12/29/2010 | CN101931750A Amplifier control device and recording non-transitory medium |
| 12/29/2010 | CN101931372A D type amplifier with second-order noise filtering circuit |
| 12/29/2010 | CN101931370A Low voltage drop amplifying circuit with quiescent current inhibition function |
| 12/29/2010 | CN101174820B Matching circuit and multiband amplifier |
| 12/28/2010 | US7860689 Method and computer programme for detecting the stationary state of a roller bearing and a roller bearing which may be analyzed thus |
| 12/28/2010 | US7859332 Amplification circuit and method therefor |
| 12/23/2010 | WO2010148369A1 Detection circuit for overdrive conditions in a wireless device |
| 12/23/2010 | WO2010147754A1 A high efficiency transmitter for wireless communication |
| 12/23/2010 | WO2010146486A1 Improving input impedance of low noise preamplifiers used for mri |
| 12/23/2010 | WO2010145482A1 Apparatus and method for class-g line driver control signal |
| 12/23/2010 | WO2010120562A3 Wideband jammer detector |
| 12/23/2010 | US20100321549 Amplifier control device and recording non-transitory medium |
| 12/23/2010 | US20100321112 Anti-Pop Circuit |
| 12/23/2010 | US20100321110 Linear rf power amplifier with frequency-selectable impedance matching |
| 12/22/2010 | EP2264909A1 Communication device, distortion compensation circuit, and distortion compensation method |
| 12/22/2010 | EP2264889A2 Method and apparatus for controlling power supply of audio amplifier |
| 12/22/2010 | EP2263309A2 Method and device for compensating amplification variations in an amplifier circuit |
| 12/22/2010 | EP1488511B1 An implementation method for pre-distortion of non-linear devices |
| 12/22/2010 | CN201682626U Tower top amplifier for base station |
| 12/22/2010 | CN201682458U Automatic gain control magnifier and low noise hearing aid system |
| 12/22/2010 | CN101926089A Circuit with power amplifier and amplification method |
| 12/22/2010 | CN101926088A Power amplification device and communication device |
| 12/22/2010 | CN101924526A Audio signal controller |
| 12/22/2010 | CN101924524A Differential complementary metal-oxide-semiconductor (CMOS) multi-mode low-noise amplifier with on-chip active Balun |
| 12/22/2010 | CN101924523A Power amplifier integrated circuit with temperature and output power compensation mechanism |
| 12/22/2010 | CN101924521A Digital bias system of radio frequency power amplifier |
| 12/22/2010 | CN101924520A Base station power amplifier and method for enhancing efficiency of base station power amplifier |
| 12/22/2010 | CN101411057B Circuit and method for reducing noise |
| 12/21/2010 | US7855613 Communication transceiver having a three-line balun with power amplifier bias |
| 12/21/2010 | US7855604 Protection circuit and method for RF power amplifiers in WLAN transceivers |
| 12/21/2010 | US7855602 Amplifier arrangement and signal generation method |
| 12/21/2010 | US7855598 Electronic signal processor |
| 12/21/2010 | CA2502867C Amplitude and phase matching for layered modulation reception |
| 12/21/2010 | CA2341724C Methods, systems, and associated implantable devices for dynamic monitoring of tumors |
| 12/16/2010 | WO2010144011A1 Distributed power amplifier with active matching |
| 12/16/2010 | WO2010143406A1 Amplitude control circuit, polar modulation transmission circuit, and polar modulation method |
| 12/16/2010 | WO2010142462A1 Inverse class f amplifier and method |
| 12/16/2010 | WO2010142234A1 Power amplifier and transmitter |
| 12/16/2010 | WO2010101719A3 Amplifier system for cell sites and other suitable applications |
| 12/16/2010 | US20100315168 Cascode cmos rf power amplifier with programmable feedback cascode bias under multiple supply voltages |
| 12/16/2010 | US20100315163 Class D Power Amplifier |
| 12/16/2010 | DE102004038377B4 Ausgangsüberspannungsschutzschaltung für Leistungsverstärker Output overvoltage protection circuit for power amplifier |
| 12/16/2010 | CA2765107A1 Power amplifier and transmitter |
| 12/15/2010 | EP2262112A2 Switch apparatus. switchable power amplification apparatus, and mobile communication terminal apparatus |
| 12/15/2010 | EP2262107A1 Inverse class F amplifier and method |
| 12/15/2010 | EP2262105A2 Voltage standing wave ratio detector for power amplifier |
| 12/15/2010 | EP2262104A1 Wireless communication apparatus |
| 12/15/2010 | EP2022167B1 Amplifier circuit and integrated circuit therefor |
| 12/15/2010 | EP2016672B1 Method and arrangement for optimizing efficiency of a power amplifier |
| 12/15/2010 | CN201674523U Radio frequency predistortion circuit, power amplifying device and repeater |
| 12/15/2010 | CN201674465U Power amplifier being easy to dissipate heat |
| 12/15/2010 | CN1956319B 高频功率放大器及无线通信装置 High frequency power amplifier and a radio communication apparatus |
| 12/15/2010 | CN101917169A High-bandwidth low-power consumption frequency-compensation three-stage operational amplifier |
| 12/15/2010 | CN101917168A High switching rate transconductance amplifier for active power factor corrector |
| 12/15/2010 | CN101917165A Electron beam system, image generator, and amplifier of high-speed driving inductor |
| 12/15/2010 | CN101154926B Amplifier circuit with multiple power supplies |
| 12/15/2010 | CN101098123B Low-voltage and low-power dissipation pseudo-two stage Class-AB OTA structure |
| 12/15/2010 | CN101083469B Tuner, digital demodulating apparatus, controlling method of the apparatus and digital receiver |
| 12/15/2010 | CN101057394B An arrangement and a method relating to signal predistortion |
| 12/14/2010 | US7853438 Comparison of data signals using characteristic electronic thumbprints extracted therefrom |
| 12/14/2010 | US7853235 Field effect transistor amplifier with linearization |
| 12/14/2010 | US7853029 Output stage for a hearing aid and method of driving output stage |
| 12/14/2010 | US7852154 High precision follower device with zero power, zero noise slew enhancement circuit |
| 12/14/2010 | US7852152 Nth order tunable low-pass continuous time filter for fiber optic receivers |
| 12/14/2010 | US7852151 Variable gain amplifier |
| 12/09/2010 | WO2010141193A2 Transimpedance amplifier with distributed control of feedback line |
| 12/09/2010 | WO2010141160A1 Apparatus and method for predictive over-drive detection |
| 12/09/2010 | WO2010120938A3 Low noise amplifier with combined input matching, balun, and transmit/receive switch |
| 12/09/2010 | US20100311362 Gain compensation device over temperature and method thereof |
| 12/09/2010 | US20100311352 Radio frequency unit analog level detector and feedback control system |
| 12/09/2010 | US20100308919 Methods and devices for leakage current reduction |
| 12/09/2010 | US20100308911 Band reject filters |
| 12/09/2010 | US20100308910 Apparatus and method for predictive over-drive detection |
| 12/09/2010 | US20100308907 Type of High-Performance DC Amplification Device for Bioelectrical Signal Collection |
| 12/09/2010 | DE102010029608A1 Impedanztransformationen mit Transistorschaltungen Impedance transformations with transistor circuits |
| 12/08/2010 | EP2259446A1 Power amplifiication device for satellite communication device |
| 12/08/2010 | EP2259268A2 Semiconductor device |
| 12/08/2010 | EP2258045A1 Rf transmitter and method of operation |
| 12/08/2010 | CN1947331B Doherty amplifier using active phase splitter |
| 12/08/2010 | CN1578126B BTL amplifying system |
| 12/08/2010 | CN101911490A Output buffer circuit and output buffer system |
| 12/08/2010 | CN101911477A Predistorter |
| 12/08/2010 | CN101911476A High-linearity complementary amplifier |
| 12/08/2010 | CN101908902A Wireless communication device and power amplification efficiency control module thereof |