| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 08/25/2011 | US20110204979 Constructive feedback traveling wave device and method |
| 08/25/2011 | US20110204978 Comparator circuit |
| 08/25/2011 | US20110204977 Solid-state image pickup apparatus and driving method therefor |
| 08/25/2011 | US20110204974 Apparatus for improving performance at low power region in a doherty amplifier |
| 08/25/2011 | US20110204973 Amplifying device and signal processing method based on amplifying device |
| 08/25/2011 | US20110204971 Differential voltage sensing system and method for using the same |
| 08/25/2011 | US20110204923 High-speed comparator |
| 08/25/2011 | US20110204527 Wireless communication system |
| 08/25/2011 | US20110204213 Light amplification circuit and photocoupler |
| 08/25/2011 | DE102010008777A1 Hochfrequenzversorgung einer Last ohne Impedanzanpassung High frequency power supply without a load impedance matching |
| 08/24/2011 | EP2360941A1 Speaker system and speaker driving circuit |
| 08/24/2011 | EP2360836A2 Amplifying circuit |
| 08/24/2011 | EP2360775A2 Transmission line, impedance transformer, integrated circuit mounted device, and communication device module |
| 08/24/2011 | EP2359474A1 Low voltage differential signaling driver with programmable on-chip resistor termination |
| 08/24/2011 | EP2359473A1 Amplifier with programmable off voltage |
| 08/24/2011 | EP1839389B1 Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals |
| 08/24/2011 | EP1609238B1 Enhanced efficiency feed forward power amplifier utilizing reduced cancellation bandwidth and small error amplifier |
| 08/24/2011 | CN201947225U 脉冲光信号接收放大器 Receiving the pulsed light signal amplifier |
| 08/24/2011 | CN201947224U 音频功率放大器静音快速控制电路 Audio Power Amplifier Mute rapid control circuit |
| 08/24/2011 | CN201947223U Power-amplifying circuit and mobile terminal |
| 08/24/2011 | CN201946873U 一种电吸收调制激光器偏置电路 An electro-absorption modulator laser bias circuit |
| 08/24/2011 | CN201946423U 基于罗氏线圈的电子式电流互感器用积分器电路 Rogowski coil-based electronic integrator circuit current transformer |
| 08/24/2011 | CN102165689A High efficiency linear amplifier |
| 08/24/2011 | CN102165688A High efficiency linear transmitter |
| 08/24/2011 | CN102165687A A system and a method for generating an error voltage |
| 08/24/2011 | CN102163958A Operational amplifier, display panel driver and display device incorporating the same |
| 08/24/2011 | CN102163957A Differential amplifier, method for inverting output polarity of the same, and source driver |
| 08/24/2011 | CN102163955A Low-noise amplifier adopting single-ended input and differential output |
| 08/24/2011 | CN101610069B Power amplifier, power amplifying circuit and power amplifying method |
| 08/24/2011 | CN101233684B Non-linear distortion detection method and distortion compensation amplifying device |
| 08/24/2011 | CN101026358B Offset elimination amplifier and its control method, and display device using same |
| 08/23/2011 | US8004371 Band reject filters |
| 08/23/2011 | US8004366 Area and power efficient, high swing and monolitihic ground centered headphone amplifier circuit operable on a low voltage |
| 08/23/2011 | US8004365 Amplifier circuit |
| 08/23/2011 | US8004364 High power RF solid state power amplifier system |
| 08/23/2011 | US8004362 Gate bias circuit |
| 08/23/2011 | US8004361 Constant transconductance operational amplifier and method for operation |
| 08/23/2011 | US8004360 Close-loop Class-D audio amplifier and control method thereof |
| 08/23/2011 | US8004356 Tuning multiport amplifiers |
| 08/18/2011 | WO2011100539A1 Wide band lna with noise canceling |
| 08/18/2011 | WO2011099965A1 Multi-mode power supply regulator for power amplifier control |
| 08/18/2011 | WO2011099113A1 Differential amplifier circuit |
| 08/18/2011 | WO2011098861A1 High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications |
| 08/18/2011 | WO2011098759A1 High power wideband amplifier and method |
| 08/18/2011 | WO2011098336A1 Push-pull amplifier having inductive common mode decoupling |
| 08/18/2011 | WO2011077246A3 Multi-band wideband power amplifier digital predistortion system |
| 08/18/2011 | US20110201281 High Frequency Switching Circuit and Method for Determining a Power of a High Frequency Signal |
| 08/18/2011 | US20110199158 Semiconductor device |
| 08/18/2011 | US20110199157 Differential amplifier, method for inverting output polarity of the same, and source driver |
| 08/18/2011 | US20110199156 Power amplifier and amplification method thereof |
| 08/18/2011 | US20110199155 Controlling the Performance of a Thermionic tube |
| 08/18/2011 | US20110199124 Electronic circuit |
| 08/18/2011 | DE102004043241B4 Transimpedanzverstärker mit veränderbarer Ausgangsamplitude und weitem Eingangsdynamikbereich Transimpedance amplifier with adjustable output amplitude and wide input dynamic range |
| 08/17/2011 | EP2357725A1 Envelope tracking arrangement for improved backoff operation |
| 08/17/2011 | EP2356742A2 Multiport amplifier adjustment |
| 08/17/2011 | EP2356740A1 Method and system for amplifying a signal using a transformer matched transistor |
| 08/17/2011 | EP2148433B1 Wide-range low-noise amplifier |
| 08/17/2011 | EP1987585B1 Audio power conversion system |
| 08/17/2011 | CN201937551U 一种基于可编程增益放大器的信号处理电路 Programmable gain amplifier based on the signal processing circuit |
| 08/17/2011 | CN201937550U Multimode power amplifier and corresponding mobile communication equipment |
| 08/17/2011 | CN201937549U 一种音频功放系统及音响设备 An audio amplifier system and audio equipment |
| 08/17/2011 | CN201937164U 一种双通道激光器调谐控制电路 A dual-channel laser tuning control circuit |
| 08/17/2011 | CN102160282A Voltage clamp |
| 08/17/2011 | CN102160280A Active-time dependent bias current generation for switched-capacitor circuits |
| 08/17/2011 | CN102158190A Doherty power amplifier and implementation method thereof |
| 08/17/2011 | CN102158189A Common mode feedback circuit of two-level operation amplifier |
| 08/17/2011 | CN102158188A Low-power consumption bandwidth-multiplying operational amplifier realized by metal oxide semiconductor (MOS) devices |
| 08/17/2011 | CN102158187A Signal processing circuit |
| 08/17/2011 | CN102158186A Power amplifier tube and power amplifying method |
| 08/17/2011 | CN102158185A Cardiac sound amplifying circuit based on MAX 4465 amplifier chip and LM 386 amplifier chip |
| 08/17/2011 | CN102158184A Power amplifier tube and power amplification method |
| 08/17/2011 | CN102158183A Doherty power amplifying device and power amplifying method |
| 08/17/2011 | CN102158182A Power amplifier |
| 08/17/2011 | CN102158181A Low-power consumption bandwidth multiplication chopping stabilized operational amplifier based on MOS (metal oxide semiconductor) device |
| 08/17/2011 | CN102158180A Switch-type operation amplifier with low power consumption |
| 08/17/2011 | CN102158179A Multimode low-noise amplifier adopting positive and negative feedback structure |
| 08/17/2011 | CN102158176A Doherty power amplification device and power amplification method |
| 08/17/2011 | CN101662283B Dual-purpose comparator/operational amplifier used as successive approximation analog-to-digital converter and digital-to-analog converter |
| 08/17/2011 | CN101542897B High frequency amplifier |
| 08/17/2011 | CN101375494B Systems and methods for over-current protection |
| 08/16/2011 | USRE42612 Switched-mode power amplifier using lumped element impedance inverter for parallel combining |
| 08/16/2011 | US8000672 Rail-to-rail data receiver for high-speed communication |
| 08/16/2011 | US7999621 Cross-differential amplifier |
| 08/16/2011 | US7999620 Amplifier with dither |
| 08/16/2011 | US7999619 Class AB output stage |
| 08/16/2011 | US7999618 High bandwidth, rail-to-rail differential amplifier with output stage amplifier |
| 08/16/2011 | US7999617 Amplifier circuit |
| 08/16/2011 | US7999616 Method for reducing offset voltage of operational amplifier and the circuit using the same |
| 08/16/2011 | US7999615 Current canceling variable gain amplifier and transmitter using same |
| 08/16/2011 | US7999613 Method and apparatus for an improved power amplifier |
| 08/16/2011 | US7999612 Operational amplifier having DC offset cancellation capability |
| 08/16/2011 | US7999610 Class D amplifier capable of setting restraint power |
| 08/11/2011 | WO2011097114A1 Tunable impedance inverter for doherty amplifier circuit |
| 08/11/2011 | WO2011096868A1 Method and arrangement for driving a microphone |
| 08/11/2011 | WO2011096175A1 Digital amplifier |
| 08/11/2011 | WO2011095214A1 Amplifier circuit and method for signal sensing |
| 08/11/2011 | US20110195677 Stacked CMOS power amplifier and RF coupler devices and related methods |
| 08/11/2011 | US20110194368 Regulator and semiconductor device |
| 08/11/2011 | US20110193636 Linearization circuits and methods for power amplification |
| 08/11/2011 | US20110193635 Wide band lna with noise canceling |