| 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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| 01/15/2014 | EP2685690A1 Technique for generating a radio frequency signal based on an offset compensation signal |
| 01/15/2014 | EP2685689A1 Technique for generating a radio frequency signal based on a peak compensation signal |
| 01/15/2014 | EP2685630A1 A two stage single-ended input, differential output current reuse low noise amplifier |
| 01/15/2014 | EP2684290A1 Spread-spectrum pilot signals in an electronic duplexer |
| 01/15/2014 | CN203399065U Weak signal amplification circuit |
| 01/15/2014 | CN203399063U Automatic level range limiting device for power amplifier |
| 01/15/2014 | CN203399062U Active electrode buffer amplifier for technotron input stage |
| 01/15/2014 | CN103518322A Digital envelope signal amplification circuit, method and envelope tracking power amplifier |
| 01/15/2014 | CN103518140A System for measuring electrical charge |
| 01/15/2014 | CN103516315A Device for offsetting passive feedback network noise |
| 01/15/2014 | CN103516314A Low noise amplifier and receiver without SAW filter |
| 01/15/2014 | CN103516313A Low-noise amplifiers for radio frequency receiver |
| 01/14/2014 | US8629727 Techniques on input transformer to push the OP1dB higher in power amplifier design |
| 01/14/2014 | US8629717 Power consumption control circuit, amplifier circuit and power consumption control method |
| 01/09/2014 | WO2014007703A1 Amplifier device and corresponding radio base station and mobile communication terminal |
| 01/09/2014 | WO2014006523A2 Low sampling rate adaptation scheme for dual-band linearization |
| 01/09/2014 | WO2013166055A3 Enhanced pulse frequency modulation (pfm) control mode for switching regulators |
| 01/09/2014 | US20140009229 Integrated signal analyzer for adaptive control of mixed-signal integrated circuits |
| 01/09/2014 | US20140009228 Pre-distortion for fast power transient waveforms |
| 01/09/2014 | US20140009227 Output impedance compensation of a pseudo-envelope follower power management system |
| 01/09/2014 | US20140009226 Decoupling circuits for filtering a voltage supply of multiple power amplifiers |
| 01/09/2014 | US20140009225 Low sampling rate adaptation scheme for dual-band linearization |
| 01/09/2014 | DE10023460B4 Sendeleistungssteuerschaltung Transmit power control circuitry |
| 01/08/2014 | EP2681842A1 Hearing aid with an h-bridge output stage and a method of driving an output stage |
| 01/08/2014 | CN203387471U Power amplifier with hot plugging function |
| 01/08/2014 | CN203387470U Temperature effect suppressing circuit device of LDMOS (laterally diffused metal oxide semiconductor) power amplifier |
| 01/08/2014 | CN203387469U X waveband low noise amplifier |
| 01/08/2014 | CN203387468U Power amplifier structure |
| 01/08/2014 | CN103503309A Wideband and reconfigurable Doherty based amplifier |
| 01/08/2014 | CN103501162A High-fidelity D-type audio frequency amplifier chip with noise canceller circuit |
| 01/08/2014 | CN103501161A Application of piecewise linear amplification technology in high peak-to-average power ratio system |
| 01/08/2014 | CN102420575B Error amplifier |
| 01/08/2014 | CN102332869B High-integration BTL (bridge-tied load) audio power amplifier |
| 01/07/2014 | US8626089 Adaptive predistorter coupled to a nonlinear element |
| 01/07/2014 | US8624678 Output stage of a power amplifier having a switched-bulk biasing and adaptive biasing |
| 01/07/2014 | US8624670 Method and apparatus for improving digital pre-distortion performance |
| 01/07/2014 | US8624669 DC offset compensation |
| 01/07/2014 | US8624668 Common-mode step response for autozero amplifiers |
| 01/03/2014 | WO2014002017A1 Predistortion according to an artificial neural network (ann)-based model |
| 01/03/2014 | WO2014000905A1 Quasi-broadband amplifier according to the doherty principle |
| 01/02/2014 | US20140003553 Predistortion apparatus for power amplifier |
| 01/02/2014 | US20140002186 Distortion compensating apparatus and distortion compensating method |
| 01/02/2014 | US20140002182 Outphasing power combining by antenna |
| 01/02/2014 | DE102013212756A1 System und verfahren für einen kaskodenverstärker System and method for a cascode amplifier |
| 01/02/2014 | DE102011077566B4 LNA-Schaltkreis zum Gebrauch in einem kostengünstigen Receiver-Schaltkreis LNA circuit for use in a low cost receiver circuit |
| 01/02/2014 | DE102008046689B4 Vorverzerrungslinearisierer Predistortion |
| 01/01/2014 | EP2680519A1 Pre-equalizer for a digitally modulated RF signal and method |
| 01/01/2014 | EP2678697A1 A system for measuring electrical charge |
| 01/01/2014 | CN203377844U Low-noise amplifier |
| 01/01/2014 | CN103493367A A method for pre-distorting and a pre-distorter |
| 01/01/2014 | CN103493366A Analog multiplier circuit, variable gain amplifier, detector circuit, and physical quantity sensor |
| 01/01/2014 | CN103490734A Device for canceling input-stage thermal noise of resistive feedback power current amplifier |
| 01/01/2014 | CN103490733A Double-frequency-band Doherty power amplifier with frequency ratio of 1.25-2.85 |
| 01/01/2014 | CN103490732A 放大器电路 Amplifier circuit |
| 01/01/2014 | CN102163956B Signal feedback loop and method for predistorter, power amplification equipment |
| 12/31/2013 | US8620626 Comparison of data signals using characteristic electronic thumbprints extracted therefrom |
| 12/31/2013 | US8620625 Above bed sensor |
| 12/31/2013 | US8620478 Apparatus and method for protecting a building |
| 12/31/2013 | US8618880 Power amplifier pre-distortion |
| 12/31/2013 | US8618876 Reduced power-consumption transmitters |
| 12/31/2013 | US8618874 Calibration of signal processing apparatus |
| 12/27/2013 | WO2013189793A2 Amplifier assembly |
| 12/27/2013 | WO2013188994A1 Doherty amplifier |
| 12/26/2013 | US20130344827 Compensation of a Transmitter Distortion |
| 12/26/2013 | US20130343484 Distortion compensation circuit, and transmission device using distortion compensation circuit and high-frequency power amplifier |
| 12/26/2013 | US20130342271 Linearization of power amplifiers through digital in-band predistortion followed by analog predistortion |
| 12/25/2013 | EP2506425B1 Source or emitter follower buffer circuit and method |
| 12/25/2013 | CN203368411U Annunciator amplification-demodulation circuit for broadband dynamically-tuned gyroscope |
| 12/25/2013 | CN203368408U Power detecting assembly used for large-power microwave amplifier |
| 12/25/2013 | CN203368407U Pre-amplification circuit capable of realizing automatic gain adjustment for voltage output-type sensor |
| 12/25/2013 | CN203368406U Front-end charge amplifier and system for MEMS equipment |
| 12/25/2013 | CN203368405U Two-way noise cancelling-type current multiplex low-noise amplifier |
| 12/25/2013 | CN203368404U High-gain low noise amplifier |
| 12/25/2013 | CN203368403U Integrated power amplifier for audio system of computer |
| 12/25/2013 | CN1643829B RF transmitters with saturation detection and correction and methods therefor |
| 12/25/2013 | CN103477555A Doherty amplifier with optimised efficiency |
| 12/25/2013 | CN103477554A Amplifiers and related integrated circuits |
| 12/25/2013 | CN103475325A Amplification circuit |
| 12/25/2013 | CN103475323A Power amplifier |
| 12/25/2013 | CN103475322A Output amplifier |
| 12/25/2013 | CN103475319A Integrable ultrahigh frequency broadband ultra linear amplifier and manufacturing method thereof |
| 12/25/2013 | CN103475317A Negative feedback amplifying circuit |
| 12/25/2013 | CN103475316A Novel scaled-down Q-mean speed regulation RC (resistor-capacitor) resonant amplifier |
| 12/25/2013 | CN103475315A Method and device for improving linearity of radio frequency power amplifier |
| 12/25/2013 | CN103475314A Low-noise amplifier |
| 12/25/2013 | CN102332872B Method and integrated circuit for using negative capacitance to increase bandwidth of amplifier |
| 12/25/2013 | CN102013877B Transconductance amplifier for reducing compensation capacitance |
| 12/24/2013 | US8615382 Test and measurement instrument with common presentation of time domain data |
| 12/24/2013 | US8614601 Power amplifier and operating method thereof |
| 12/24/2013 | US8614600 Switch configuration for default-on N-way active splitters |
| 12/19/2013 | WO2013188712A1 Power amplifier modules including related systems, devices, and methods |
| 12/19/2013 | WO2013188694A1 Process-compensated hbt power amplifier bias circuits and methods |
| 12/19/2013 | WO2013186863A1 Amplification circuit |
| 12/19/2013 | WO2013186710A2 Modeling digital predistorter |
| 12/19/2013 | WO2013185988A1 Sensor arrangement and method for generating an amplified sensor signal |
| 12/19/2013 | WO2013113636A3 Low-noise amplifier |
| 12/19/2013 | US20130336373 Method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration |
| 12/19/2013 | US20130335140 Amplification device and amplification method |
| 12/19/2013 | US20130335131 System and Method for a Switched Capacitor Circuit |
| 12/19/2013 | DE102012210249A1 Verstärkeranordnung Amplifier arrangement |