| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 02/06/2013 | CN102916662A 功率放大器 PA |
| 02/06/2013 | CN102916659A Automatic inductance-capacitance calibrating method and circuit |
| 02/06/2013 | CN102916658A Amplifier and associated receiver |
| 02/06/2013 | CN102916657A High-frequency bandwidth amplifying circuit |
| 02/06/2013 | CN102916656A Amplifier circuits and modulation signal generating circuits therein |
| 02/06/2013 | CN102916655A Optical coupling device |
| 02/06/2013 | CN102361435B Variable gain broadband low-noise amplifier |
| 02/06/2013 | CN102045033B Amplifier with single-ended input and differential output |
| 02/06/2013 | CN101834573B Class-D amplifier |
| 02/06/2013 | CN101795115B Multiband matching circuit and multiband power amplifier |
| 02/06/2013 | CN101129040B Pre-distortion of IQ modulator, combined power amplifier, IQ modulator predistorter and base station |
| 02/05/2013 | US8370113 Low-power and low-cost adaptive self-linearization system with fast convergence |
| 02/05/2013 | US8369906 Antenna compensation system and method in a communications device |
| 02/05/2013 | US8368466 Orthogonal basis function set for digital predistorter |
| 02/05/2013 | US8368465 Power amplification apparatus |
| 02/05/2013 | US8368463 Voltage distribution for controlling CMOS RF switch |
| 02/05/2013 | CA2729742C Switched resonant ultrasonic power amplifier system |
| 02/05/2013 | CA2556049C Electrical apparatus and cooling system |
| 01/31/2013 | WO2013016575A2 Low variation current multiplier |
| 01/31/2013 | WO2013015820A1 Inductive-element feedback-loop compensator |
| 01/31/2013 | WO2013015778A1 Actively tuned circuit having parallel carrier and peaking paths |
| 01/31/2013 | WO2013014551A1 Multi-bank peak power reduction |
| 01/31/2013 | US20130027131 Sound output device using vacuum tube, audio apparatus and method for sound output thereof |
| 01/31/2013 | DE102012213096A1 Sendeschaltkreis, Verfahren zum Einstellen eines Bias eines Leistungsverstärkers und Verfahren zum Anpassen der Bereitstellung von Bias-Informationen Transmitter circuit, method for adjusting a bias of a power amplifier and method for adjusting the supply of bias information |
| 01/31/2013 | DE102010029608B4 Impedanztransformationen mit Transistorschaltungen Impedance transformations with transistor circuits |
| 01/31/2013 | DE102009012170B4 Integrierte Verstärkerschaltung und Verfahren zum Bereitstellen einer Gleichstromversorgung Integrated amplifier circuit and method for providing a DC power supply |
| 01/31/2013 | DE102004031687B4 Leistungsverstärkeranordnung Power amplifier arrangement |
| 01/31/2013 | DE102004018355B4 Schaltung zur Signalverarbeitung, ihre Verwendung und Verfahren zur Temperaturkompensation des Großsignalübertragungsverhaltens von Transistoren Circuit for signal processing, use and method for temperature compensation of the large-signal transmission behavior of transistors |
| 01/31/2013 | DE102004001094B4 Leistungsverstärkeranordnung Power amplifier arrangement |
| 01/31/2013 | CA2842006A1 Multi-band peak power reduction |
| 01/30/2013 | EP2552017A1 A method of diminishing the minimum range of operation of a communication link |
| 01/30/2013 | EP2550746A1 Circuit and method for interference reduction |
| 01/30/2013 | EP2550735A1 Methods for determining optimum power supply voltages for radio-frequency power amplifier circuitry |
| 01/30/2013 | CN202713237U Power amplification module |
| 01/30/2013 | CN202713236U Power amplifier for flood discharge early-warning system |
| 01/30/2013 | CN202713234U Broadband adapting radio-frequency power amplification device |
| 01/30/2013 | CN202713233U Automobile player digital audio power amplifier power supply circuit and automobile player |
| 01/30/2013 | CN102906998A Amplification circuit, communication device, and transmission device using amplification circuit |
| 01/30/2013 | CN102906997A Methods for determining optimum power supply voltages for radio-frequency power amplifier circuitry |
| 01/30/2013 | CN102906996A A decomposition transmitting system and method for improving efficiency and linearity |
| 01/30/2013 | CN102904846A Digital pre-distortion processing method adaptive to quick-change signal |
| 01/30/2013 | CN102904532A Transmit circuit, method for adjusting a bias of a power amplifier and method for adapting the provision of a bias information |
| 01/30/2013 | CN102904531A Amplifier and associated receiver |
| 01/30/2013 | CN101986557B Method and structure for eliminating offset voltage of operational amplifier by using lining bias effect |
| 01/30/2013 | CN101485097B Transmission circuit and communication apparatus |
| 01/29/2013 | US8364443 Fault analysis and monitoring applications using out-of-band based modules |
| 01/29/2013 | US8363045 Class AB amplifier circuit and display apparatus |
| 01/29/2013 | US8362840 Apparatus and methods for biasing a power amplifier |
| 01/29/2013 | US8362835 Decade bandwidth planar MMIC four port transformer |
| 01/29/2013 | US8362834 System and method for controlling radio frequency transmissions from an electronic device |
| 01/29/2013 | US8362831 Reference voltage buffer and method thereof |
| 01/24/2013 | WO2013012787A2 Modified switching ripple for envelope tracking system |
| 01/24/2013 | WO2013012537A1 Amplifier with improved noise reduction |
| 01/24/2013 | WO2013011026A2 Amplifier arrangement |
| 01/23/2013 | EP2549644A1 A resonated bypass capacitor for enhanced performance of a microwave circuit |
| 01/23/2013 | EP2549643A1 System and method for capacitive signal source amplifier |
| 01/23/2013 | EP2549528A1 Compound semiconductor device and manufacturing method for same |
| 01/23/2013 | EP2548302A1 Feedback loop with parallel forward paths |
| 01/23/2013 | CN202696550U Single end to differential amplifier circuit |
| 01/23/2013 | CN202696546U Power amplifier protection device of radio-frequency circuit and transmitter |
| 01/23/2013 | CN202696545U Linear wideband high-frequency power amplifier |
| 01/23/2013 | CN202696544U Non-frequency spectrum distortion transmitting signal amplifying circuit |
| 01/23/2013 | CN202696543U Self-biased circuit |
| 01/23/2013 | CN202696542U Modular professional power amplifier |
| 01/23/2013 | CN202696541U Audio frequency amplifier system based on electricity supply of computer USB (universal serial bus) power supply and integration of USB sound card |
| 01/23/2013 | CN102893518A Amplifier |
| 01/23/2013 | CN102893517A Multi-band high-efficiency doherty amplifier |
| 01/23/2013 | CN102891539A Self-excitation tracking power amplifier for wireless electrical energy transmission system |
| 01/23/2013 | CN102142813B Low-noise high-voltage amplifier |
| 01/23/2013 | CN101594337B Device for generating pre-distorted signals |
| 01/22/2013 | US8358170 Power amplifier linearization using cancellation-based feed forward methods and systems |
| 01/22/2013 | US8358169 Systems and methods for distortion measurement using distortion-to-amplitude transformations |
| 01/22/2013 | CA2516194C N-way rf power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances |
| 01/17/2013 | WO2013009640A2 Signal path termination |
| 01/17/2013 | WO2013008339A1 Differential amplifier circuit |
| 01/17/2013 | WO2013008260A1 Distorting device with dynamic correlation for electric music instruments |
| 01/17/2013 | WO2013007300A1 Signal predistortion for non-linear amplifier |
| 01/17/2013 | WO2013006943A1 Amplifier linearization using non-standard feedback |
| 01/17/2013 | WO2013006941A1 Broadband doherty amplifier using broadband transformer |
| 01/17/2013 | WO2012117072A3 Amplifier module |
| 01/17/2013 | US20130015917 Distortion compensation apparatus, transmitter, and distortion compensation method |
| 01/17/2013 | DE112006001444B4 Gegenkopplungsschaltung und Verfahren und Vorrichtung zur Realisierung von Impedanzanpassung auf einem Chip für eine Übertragungsleitung mittels derselben Negative feedback circuit and method and apparatus for realizing impedance matching on a single chip for a transmission line by means of the same |
| 01/16/2013 | EP2546983A1 Methods and systems for operating power converters |
| 01/16/2013 | EP2546982A1 A variable gain amplifier circuit |
| 01/16/2013 | EP2545644A1 A decomposition transmitting system and method for improving efficiency and linearity |
| 01/16/2013 | CN102884724A Area efficient concurrent matching transceiver |
| 01/16/2013 | CN102884723A Current-voltage converter having a current reflector, input stage of an amplifier and corresponding amplifier |
| 01/16/2013 | CN102882477A Radio-frequency power device with adjustable operating frequency |
| 01/16/2013 | CN102882476A High-bandwidth amplifying circuit |
| 01/16/2013 | CN102882475A Bandwidth expansion method and bandwidth expansion device for radio-frequency power amplifying circuit |
| 01/16/2013 | CN101841305B Power amplifying device and power amplifying method |
| 01/16/2013 | CN101741787B Predistortion fast-convergence method and system for collecting training data |
| 01/16/2013 | CN101689834B Distortion correction control apparatus and distortion correction control method |
| 01/16/2013 | CN101674055B Self-adapting burst-mode signal receiving and regenerating amplifier |
| 01/15/2013 | US8354887 Charge compensation for operational transconductance amplifier based circuits |
| 01/15/2013 | US8354884 Measurement and correction of residual nonlinearities in a digitally predistorted power amplifier |
| 01/15/2013 | US8354881 Chopper-stabilized instrumentation amplifier |
| 01/10/2013 | WO2013005497A1 Power supply device for high frequency electrical power amplification circuit, and high frequency electrical power amplifying device |
| 01/10/2013 | WO2013004273A1 Enhanced linearizing for a transmitter comprising a power amplifier |
| 01/10/2013 | WO2011147841A3 Switched arrangement for switched mode supply |