| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 02/23/2011 | EP2288020A2 Semiconductor device |
| 02/23/2011 | EP1573907B1 Delay mismatched feed forward amplifier system using penalties and floors for control |
| 02/23/2011 | EP1573900B1 Feed forward amplifier system using penalties and floors for optimal control |
| 02/23/2011 | CN101980441A Digital audio power amplifier and control method thereof |
| 02/22/2011 | US7893790 Electronic device and method of matching the impedance thereof |
| 02/17/2011 | WO2011020112A1 Amplifier with variable matching circuit to improve linearity |
| 02/17/2011 | WO2011019850A1 Amplifiers with improved linearity and noise performance |
| 02/16/2011 | EP2285059A2 Digital transmitters for wireless communication |
| 02/16/2011 | EP2284993A2 Dynamic switchable mode dual bridge power amplifier |
| 02/16/2011 | EP2284991A1 System and method for controlling radio frequency transmissions in an electronic device |
| 02/16/2011 | EP2284990A2 High linearity variable gain amplifier |
| 02/16/2011 | EP2284989A2 High efficiency microwave amplifier |
| 02/16/2011 | EP2283573A1 Multi-stage amplifier |
| 02/16/2011 | EP1958328B1 Signal output circuit, communication apparatus and signal output control method |
| 02/16/2011 | EP1446870B1 Transient damping arrangement |
| 02/16/2011 | CN201750403U Simple-pole multistage gain enhancement amplifier |
| 02/16/2011 | CN1534865B Low noise light receiver |
| 02/16/2011 | CN101978598A Quadrature output low noise transconductance amplifier having differential input |
| 02/16/2011 | CN101978597A Low distortion amplifier and doherty amplifier using low distortion amplifier |
| 02/16/2011 | CN101977025A Method and device for eliminating noise in class-D power amplifier |
| 02/16/2011 | CN101977024A Multi-closed loop synergetic amplification circuit |
| 02/16/2011 | CN101977023A Method for debugging and compensating avalanche diode |
| 02/16/2011 | CN101977022A Complementary-multiplicative power compensation method, device and communication equipment |
| 02/16/2011 | CN101378074B Nitride semiconductor device, doherty amplifier and drain voltage controlled amplifier |
| 02/16/2011 | CN101039289B Intermodulation signal frequency searching apparatus and positioning method |
| 02/15/2011 | US7889011 Output short circuit and load detection |
| 02/15/2011 | US7889010 Compensation circuit |
| 02/15/2011 | US7888996 Chopper stabilized operational amplifier |
| 02/15/2011 | US7888995 Differential amplifier circuit having offset adjustment circuit |
| 02/15/2011 | CA2516706C High efficiency amplification |
| 02/10/2011 | WO2011017463A1 Amplifier module with multiple operating modes |
| 02/10/2011 | WO2011017368A1 Multi-stage impedance matching |
| 02/10/2011 | WO2011016163A1 Radio communication apparatus |
| 02/10/2011 | WO2011015533A1 Digital modulated rf power amplifier with impedance compensation circuit |
| 02/10/2011 | WO2011014961A1 Distributed amplifier for band pass radio front-end |
| 02/10/2011 | US20110032036 Performance tuning using encoded performance parameter information |
| 02/10/2011 | US20110032035 Amplifier module with multiple operating modes |
| 02/10/2011 | US20110032033 Pre-distortion and memory compensation apparatus |
| 02/10/2011 | US20110032032 Digital predistorter for variable supply amplifier |
| 02/10/2011 | US20110032031 Amplifier circuit and light receiving amplifier circuit using the same |
| 02/10/2011 | DE102010038482A1 Digitale Vorverzerrung und Kompensation einer Betriebsbedingungsauswirkung Digital pre-distortion compensation and an operating condition of impact |
| 02/10/2011 | CA2801950A1 Distributed amplifier for band pass radio front-end |
| 02/09/2011 | EP1884024B1 Dual voltage regulator for a supply voltage controlled power amplifier in a closed power control loop |
| 02/09/2011 | CN201742555U Broadcast amplifier with multifunctional business broadcasting amplification |
| 02/09/2011 | CN201742373U Digital bias system of radio frequency power amplifier |
| 02/09/2011 | CN1729637B A transmitter and a method of calibrating power in signals output from a transmitter |
| 02/09/2011 | CN101971488A Differential current output driver with overvoltage protection |
| 02/09/2011 | CN101971487A System and method of enabling a signal processing device in a relatively fast manner to process a low duty cycle signal |
| 02/09/2011 | CN101969296A Power line carrier communication-based impedance adaptive power amplifier circuit and realization method thereof |
| 02/09/2011 | CN101414807B Signal amplification circuit |
| 02/08/2011 | US7885666 Method and apparatus for determining the new sample points of the location determination system in a wireless environment |
| 02/08/2011 | US7884670 Class D amplifier |
| 02/03/2011 | WO2011014849A2 Bias current monitor and control mechanism for amplifiers |
| 02/03/2011 | WO2011013420A1 Power amplifying device, power amplifying method and storage medium |
| 02/03/2011 | WO2011012473A1 Dual use transistor |
| 02/03/2011 | WO2010141193A3 Transimpedance amplifier with distributed control of feedback line |
| 02/03/2011 | US20110025414 Predistortion of amplifier input signals |
| 02/03/2011 | US20110025413 Dynamic Radio Frequency Amplifier Distortion Adjustment Based on Linearly Interpolating from a Sample of Pre-Distortion Coefficients that are Selected Based on Signal Magnitude |
| 02/03/2011 | DE10000224B4 Leistungsverstärker mit einer Schutzschaltung Power amplifier with a protection circuit |
| 02/02/2011 | EP2280479A1 Class H Amplifier |
| 02/02/2011 | CN201733280U Power amplifier with RF (radio frequency) CASCODE structure and increased linearity as well as power attaching efficiency |
| 02/02/2011 | CN201733279U Power supply device and communication device of radio frequency power amplifier |
| 02/02/2011 | CN201733278U Output matching circuit for increasing power added efficiency and linearity |
| 02/02/2011 | CN101965682A Multi-mode power amplifiers |
| 02/02/2011 | CN101965681A Floating front-end amplifier and one-wire measuring devices |
| 02/02/2011 | CN101404480B Single slice integrated anti-sound break class D audio power amplifier |
| 02/02/2011 | CN101304237B Amplifier apparatus capable of eliminating migration voltage |
| 02/02/2011 | CN101297477B Transconductance device |
| 02/01/2011 | US7881913 Exemplar/PDE-based technique to fill null regions and corresponding accuracy assessment |
| 02/01/2011 | US7881501 Local dominant wave-vector analysis of seismic data |
| 02/01/2011 | US7880545 Cascode compensation circuit and method for amplifier stability |
| 02/01/2011 | US7880543 Data transmitting circuit and transmitting method |
| 02/01/2011 | US7880540 Amplifying system and related method |
| 02/01/2011 | US7880538 Switched-capacitor amplifier arrangement and method |
| 02/01/2011 | US7880537 Operational amplifier, line driver, and liquid crystal display device |
| 01/27/2011 | WO2011011757A1 Power amplifier with switched output matching for multi-mode operation |
| 01/27/2011 | WO2011011756A1 Split-biased current scalable buffer |
| 01/27/2011 | WO2011011754A1 Multi-mode low noise amplifier with transformer source degeneration |
| 01/27/2011 | WO2011010513A1 Pop sound reduction circuit and audio circuit having such pop sound reduction circuit for use in audio amplifier |
| 01/27/2011 | US20110018640 Transmitter utilizing a duty cycle envelope reduction and restoration modulator |
| 01/27/2011 | US20110018632 Power amplifier with switched output matching for multi-mode operation |
| 01/27/2011 | US20110018631 Semiconductor device |
| 01/27/2011 | US20110018627 Nested transimpendance amplifier |
| 01/27/2011 | US20110017904 Transimpedance amplifier circuit for a photodetector |
| 01/26/2011 | EP2278706A2 High linearity variable gain amplifier |
| 01/26/2011 | EP2278705A1 Envelope tracking radio frequency power amplifier |
| 01/26/2011 | EP2278704A1 Radiofrequency signal power amplifying method and apparatus. |
| 01/26/2011 | EP2277263A1 Combined feedback and feed-forward linearisation of rf power amplifiers |
| 01/26/2011 | EP2277262A1 Feedforward linearization of rf power amplifiers |
| 01/26/2011 | EP2277261A1 Amplifier design with biasing and power control aspects |
| 01/26/2011 | EP1149466B1 Amplifier |
| 01/26/2011 | CN201726521U Vehicle-mounted DVD navigation audio-visual device for raising audio frequency |
| 01/26/2011 | CN201726372U Push-pull type radio-frequency power amplifier with improved linearity |
| 01/26/2011 | CN201726369U Radio-frequency power amplifier circuit with function of adjusting pre-distortion |
| 01/26/2011 | CN201726367U Cascode power amplifier with improved efficiency and linearity |
| 01/26/2011 | CN201726366U Power amplifier with improved efficiency and linearity |
| 01/26/2011 | CN201726363U Circuit capable of improving linearity and power-added efficiency of power amplifier |
| 01/26/2011 | CN201726362U Circuit structure for improving linearity and PAE of power amplifier |
| 01/26/2011 | CN201726361U Filter circuit capable of improving linearity of power amplifier and power added efficiency |
| 01/26/2011 | CN201726360U PA power amplification module of digital optical fiber pull-far system |