| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 10/12/2011 | CN101335517B Amplifier |
| 10/11/2011 | US8035450 Operational transconductance amplifier having two amplification stages |
| 10/11/2011 | US8035447 Active circuits with load linearization |
| 10/11/2011 | US8035446 Natural sampling for a digital Class-D power amplifier |
| 10/11/2011 | US8035443 Amplifier with gain expansion stage |
| 10/06/2011 | WO2011123183A1 Variable class characteristic amplifier |
| 10/06/2011 | WO2011121954A1 Digital amplifier |
| 10/06/2011 | WO2011120996A1 Efficient supply voltage |
| 10/06/2011 | WO2011120757A1 Amplifier circuit, detector arrangement and method for operating an amplifier |
| 10/06/2011 | WO2011084384A3 Amplifier with improved input resistance and controlled common mode |
| 10/06/2011 | US20110241916 Re-configurable multipurpose analog interface |
| 10/06/2011 | US20110241777 Conversion circuit from single phase signal to differential phase signal |
| 10/06/2011 | US20110241772 Error amplifier for regulating single feedback input at multiple levels |
| 10/06/2011 | US20110241771 Active mute scheme for an amplifier |
| 10/06/2011 | DE102010013318A1 Verstärkerschaltung, Detektoranordnung und Verfahren zum Betreiben eines Verstärkers Amplifier circuit, detector assembly and method for operating an amplifier |
| 10/05/2011 | EP2372906A1 Power amplifier |
| 10/05/2011 | EP2372905A1 Efficiency-improved doherty amplifier arrangement |
| 10/05/2011 | EP2372904A1 Power amplication device |
| 10/05/2011 | EP2372903A1 Method and apparatus for aligning feed forward loops |
| 10/05/2011 | EP2372902A2 RF clock generator with spurious tone cancellation |
| 10/05/2011 | EP2371059A1 Operational transconductance amplifier having two amplification stages. |
| 10/05/2011 | CN202004727U Digital power amplifier |
| 10/05/2011 | CN202004725U Miniaturized high-power X-band amplitude-limiting low-noise amplifier |
| 10/05/2011 | CN202004315U Double-channel laser tuning control circuit |
| 10/05/2011 | CN102210098A Charge amplifiers with DC stabilization |
| 10/05/2011 | CN102210097A High frequency differential amplifier and transceiver circuit |
| 10/05/2011 | CN102210096A Variable duty cycle generation for out-phasing and PWM power amplifiers |
| 10/05/2011 | CN102210093A Method of detecting an operating condition of an electric stepper motor |
| 10/04/2011 | US8032248 Method for finding the correlation between the tool PM and the product yield |
| 10/04/2011 | US8031888 Electronic apparatus having audio output units |
| 10/04/2011 | US8031005 Amplifier supporting multiple gain modes |
| 10/04/2011 | US8030998 Active feed forward amplifier |
| 10/04/2011 | US8030997 Resource efficient adaptive digital pre-distortion system |
| 10/04/2011 | CA2476246C Feed forward rf power amplifier with high efficiency main amplifier and highly linear error amplifier |
| 10/04/2011 | CA2388039C Improved floating, balanced output circuit |
| 09/29/2011 | WO2011119253A1 Adaptive compensation systems for mitigating distortion due to nonlinear power amplifiers |
| 09/29/2011 | WO2011119078A1 Circuit and method for interference reduction |
| 09/29/2011 | WO2011084592A3 Amplifier circuit |
| 09/29/2011 | US20110235455 Voltage regulators, amplifiers, memory devices and methods |
| 09/29/2011 | US20110234320 Voltage output device having an operational amplifier |
| 09/29/2011 | US20110234316 Impedance matching circuit capable of efficiently isolating paths for multi-band power amplifier |
| 09/29/2011 | US20110234315 Power Amplifier Linearization Using Cancellation-Based Feed Forward Methods and Systems |
| 09/29/2011 | US20110234314 Adaptive compensation systems for mitigating distortion due to nonlinear power amplifiers |
| 09/29/2011 | US20110234312 Amplifier with improved stability |
| 09/29/2011 | DE10248149B4 Treiberschaltung mit frequenzabhängiger Signalrückkopplung Driver circuit with frequency-dependent signal feedback |
| 09/28/2011 | EP2369742A1 Amplifier circuit and method for conditioning an output current signal of a detecting element |
| 09/28/2011 | EP2369740A1 Distortion compensating apparatus, amplifying apparatus, transmitting apparatus, and distortion compensating method |
| 09/28/2011 | EP2369739A1 Distortion compensating apparatus, amplifying apparatus, transmitting apparatus, and distortion compensating method |
| 09/28/2011 | EP2368324A1 Sub sampling electrical power conversion |
| 09/28/2011 | EP2248256B1 Lna having a post-distortion mode and a high-gain mode |
| 09/28/2011 | EP2002558B1 High efficiency converter providing switching amplifier bias |
| 09/28/2011 | CN201994914U 用于基站系统功率放大器的非对称Doherty放大电路 Asymmetrical Doherty amplifier for a base station system amplifying circuit |
| 09/28/2011 | CN102204087A Amplifier with improved ESD protection circuitry |
| 09/28/2011 | CN102204086A Headphone amplifier circuit |
| 09/28/2011 | CN102201791A AB-class audio amplifier power protector |
| 09/28/2011 | CN102201790A Coupling blocking method and operational amplifier |
| 09/28/2011 | CN101656514B Gain controllable parallel radio-frequency power amplifier based on matching share |
| 09/28/2011 | CN101577525B Device and method for estimating model of amplifier |
| 09/28/2011 | CN101515785B Feedforward amplifier and control method thereof |
| 09/28/2011 | CN101467347B Distortion compensator apparatus, amplifier apparatus, transmitter, and method of compensating distortion |
| 09/28/2011 | CN101369801B Distortion sensing means, automatic distortion avoiding device, and amplifier |
| 09/28/2011 | CN101350605B Improved bipolar type variable gain amplifier with minimum gain control |
| 09/28/2011 | CN101252344B Cryogenic receiving amplifier and amplifying method |
| 09/27/2011 | US8027542 High speed video action recognition and localization |
| 09/27/2011 | US8026766 Power circuits for power amplifiers and communication systems using the same |
| 09/27/2011 | US8026765 Audio frequency amplifier |
| 09/27/2011 | US8026761 Instrumentation amplifier calibration method, system and apparatus |
| 09/27/2011 | US8026760 Gain enhanced switched capacitor circuit and method of operation |
| 09/27/2011 | US8026759 Multistage amplifying circuit |
| 09/27/2011 | US8026551 Source follower circuit or bootstrap circuit, driver circuit comprising such circuit, and display device comprising such driver circuit |
| 09/22/2011 | WO2011115649A1 Feedback loop with parallel forward paths |
| 09/22/2011 | WO2011115533A1 Envelope tracking switching hybrid |
| 09/22/2011 | WO2011114535A1 Compound semiconductor device and manufacturing method for same |
| 09/22/2011 | WO2011098861A8 High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications |
| 09/22/2011 | WO2011077247A8 Modulation agnostic digital hybrid mode power amplifier system and method |
| 09/22/2011 | WO2011077246A8 Multi-band wideband power amplifier digital predistortion system |
| 09/22/2011 | WO2011055964A3 Doherty amplifier |
| 09/22/2011 | US20110228171 Automatically setting an operative state of a wideband amplifier |
| 09/22/2011 | US20110227648 Silicon-on-Insulator High Power Amplifiers |
| 09/22/2011 | US20110227644 Distortion compensating apparatus, amplifying apparatus, transmitting apparatus, and distortion compensating method |
| 09/22/2011 | US20110227643 Distortion compensating apparatus, amplifying apparatus, transmitting apparatus, and distortion compensating method |
| 09/22/2011 | US20110227642 Parallel forward path cartesian feedback loop and loop filter with switchable order for cartesian feedback loops |
| 09/22/2011 | US20110227607 Sensor Circuit |
| 09/22/2011 | DE102010012269A1 Differenzverstärker und Verfahren zum Betreiben eines Differenzverstärkers Differential amplifier and method of operating a differential amplifier |
| 09/22/2011 | DE102010011757A1 Elektronische Vorrichtung zum Zwischenspeichern von Signalen eines temperaturkompensierten Quarzoszillators und Verfahren zur Herstellung der Vorrichtung Electronic device for the intermediate storage of signals of a temperature compensated crystal oscillator and method of manufacturing the device |
| 09/22/2011 | DE102008010963B4 Pufferschaltkreis Buffer circuit |
| 09/21/2011 | EP2367284A2 Radio apparatus, distortion correction device, and distortion correction method |
| 09/21/2011 | EP2367283A1 Radio apparatus, distortion correction device, and distortion correction method |
| 09/21/2011 | EP2367282A2 An electronic apparatus, transmitter, amplifier, and amplifier control method |
| 09/21/2011 | EP2366217A1 Generation of pre-distortion coefficients |
| 09/21/2011 | EP2238684B1 Circuit with a power amplifier and amplification method |
| 09/21/2011 | EP2092639B1 True current limit |
| 09/21/2011 | EP1912328B1 Highly efficient amplifier |
| 09/21/2011 | EP1911154B1 Amplifier with active post-distortion linearization |
| 09/21/2011 | EP1532731B1 High power doherty amplifier |
| 09/21/2011 | CN201985818U Balanced low-noise amplifier |
| 09/21/2011 | CN1988373B Device and method for controlling a voltage control signal |
| 09/21/2011 | CN102197584A Power amplifier and amplifying method employed therein |
| 09/21/2011 | CN102197402A Adder, and power combiner, quadrature modulator, quadrature demodulator, power amplifier, transmitter and wireless communicator using same |
| 09/21/2011 | CN102195578A Output buffer circuit and method capable of inhibiting voltage overshoot |