| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 12/02/2009 | CN100566163C A current imposing sequence control circuit for power amplifier |
| 12/02/2009 | CN100566160C Message amplifying unit and method for preventing sonic boom |
| 12/02/2009 | CN100566144C Transistor arrangement, integrated circuit and method for operating field effect transistors |
| 12/02/2009 | CN100566143C Operational amplifier and analog-to-digital converter |
| 12/02/2009 | CN100566142C Digital analog circuit, digital driver and display device |
| 12/02/2009 | CN100566141C High frequency amplification circuit |
| 12/02/2009 | CN100566140C Microphone preamplifier |
| 12/02/2009 | CN100566139C Audio frequency apparatus and silencing apparatus |
| 12/02/2009 | CN100566138C Photodetector-amplifier circuit and optical pickup device |
| 12/01/2009 | US7626628 Photoelectric conversion device, image sensor, optical reader, and method of driving photoelectric conversion device |
| 12/01/2009 | US7626461 Transconductance stage arrangement |
| 12/01/2009 | US7626460 Low noise, low power and high bandwidth capacitive feedback trans-impedance amplifier with differential FET input and bipolar emitter follower feedback |
| 12/01/2009 | US7626459 High frequency amplifier circuit and mobile communication terminal using the same |
| 12/01/2009 | US7626458 Common-mode bandwidth reduction circuit and method for differential applications |
| 12/01/2009 | US7626457 AGC module and method for controlling noise figure and intermodulation characteristics therein |
| 12/01/2009 | US7626454 Radio frequency signal amplifying device |
| 12/01/2009 | US7626449 Apparatus and method for tuning center frequency of a filter |
| 12/01/2009 | CA2475520C Driver circuit |
| 11/26/2009 | WO2009143480A1 Amplifier with improved linearization |
| 11/26/2009 | WO2009142718A2 Predictive feedback compensation for pwm switching amplifiers |
| 11/26/2009 | WO2009142698A1 Method and system for balancing power distribution in dc to dc power conversion |
| 11/26/2009 | WO2009141457A1 Comparator circuit |
| 11/26/2009 | WO2009140895A1 Power amplification device and signal transceiver system |
| 11/26/2009 | WO2009122103A3 System for converting charge into voltage and method for controlling this system |
| 11/26/2009 | US20090289930 Operational amplifier circuit and display panel driving apparatus |
| 11/26/2009 | US20090289722 Bonded Wafer Package Module |
| 11/26/2009 | US20090289721 Circuits, processes, devices and systems for full integration of rf front end module including rf power amplifier |
| 11/26/2009 | US20090289720 High-Efficiency Envelope Tracking Systems and Methods for Radio Frequency Power Amplifiers |
| 11/26/2009 | US20090289717 Radio frequency (rf) power amplifier and rf power amplifier apparatus |
| 11/26/2009 | US20090289716 Amplifier circuit having dynamically biased configuration |
| 11/26/2009 | US20090289715 Amplifier with improved linearization |
| 11/26/2009 | US20090289714 Operational amplifier |
| 11/26/2009 | US20090289713 Differential amplifier circuit having offset adjustment circuit |
| 11/26/2009 | US20090289712 Amplifier circuit |
| 11/26/2009 | US20090289711 Transconductance amplifier |
| 11/26/2009 | US20090289710 Amplifier providing power recovery from a narrow-band antenna |
| 11/26/2009 | US20090289709 Closed loop timing feedback for PWM switching amplifiers using predictive feedback compensation |
| 11/26/2009 | US20090289705 Pulse modulation type electric power amplifier |
| 11/26/2009 | US20090289704 Amplification circuit for driving a diffuser |
| 11/26/2009 | US20090289702 Current generator |
| 11/26/2009 | US20090289173 Photoelectric conversion device and electronic device having the same |
| 11/25/2009 | EP2124333A1 Comparator circuit |
| 11/25/2009 | EP2124331A1 Amplification circuit for driving a diffuser |
| 11/25/2009 | EP2124329A1 High frequency amplifier |
| 11/25/2009 | EP2122829A1 Comparator with complementary differential input stages |
| 11/25/2009 | EP2122827A1 Flexible dynamic range amplifier |
| 11/25/2009 | EP2122826A1 Amplifier with integrated filter |
| 11/25/2009 | EP1198798B1 Track and hold amplifier with controllable feedback between hold capacitor and input buffer |
| 11/25/2009 | CN101589550A Enhanced Doherty amplifier with asymmetrical semiconductors |
| 11/25/2009 | CN101589549A Chopper-stabilized instrumentation amplifier |
| 11/25/2009 | CN101589548A Chopper-stabilized instrumentation amplifier for impedance measurement |
| 11/25/2009 | CN101589547A System and method for on-chip im3 reduction over a broad range of operating powers |
| 11/25/2009 | CN101588195A Power amplification device and signal receiving and transmitting system |
| 11/25/2009 | CN101588163A Difference high-pass filtering circuit based on symmetric active induction |
| 11/25/2009 | CN101588160A Operational amplifier capable of improving slew rate and related method thereof |
| 11/25/2009 | CN101588159A Radio frequency (RF) power amplifier and RF power amplifier apparatus |
| 11/25/2009 | CN101588158A Pulse width modulation amplifier |
| 11/25/2009 | CN101588157A Audio amplifier |
| 11/25/2009 | CN101588156A Audio amplifier |
| 11/25/2009 | CN100563097C Mutually supplementary gain control circuit |
| 11/25/2009 | CN100563096C Linear biasing circuit with adaptability |
| 11/24/2009 | US7622993 Current mirror circuit |
| 11/24/2009 | US7622991 Transconductance signal capacity format |
| 11/24/2009 | US7622990 Amplifiers, methods of increasing current gain in amplifiers, and imaging devices |
| 11/24/2009 | US7622989 Multi-band, inductor re-use low noise amplifier |
| 11/19/2009 | WO2009139814A2 Modified distributed amplifier to improve low frequency efficiency and noise figure |
| 11/19/2009 | WO2009139680A1 Baseband decoupling of radio frequency power transistors |
| 11/19/2009 | WO2009139280A1 Amplifier module |
| 11/19/2009 | WO2009138635A1 Integrated circuitand corresponding method of processing a multitype radio frequency digital signal |
| 11/19/2009 | WO2009080573A3 Monolithically integrated antenna- and receiver circuit for the detection of terahertz waves |
| 11/19/2009 | US20090285579 Linearized trans-impedance amplifiers |
| 11/19/2009 | US20090284317 Source driver of a display, operational amplifier, and method for controlling the operational amplifier thereof |
| 11/19/2009 | US20090284316 Amplifier device |
| 11/19/2009 | US20090284315 Operational amplifier |
| 11/19/2009 | US20090284314 Audio amplifier |
| 11/19/2009 | US20090284313 Audio amplifier |
| 11/19/2009 | US20090284284 Sense Amplifier and Electronic Apparatus Using the Same |
| 11/18/2009 | EP2120372A1 Light receiver |
| 11/18/2009 | EP2120335A1 Power voltage forming device and polar modulation transmission device |
| 11/18/2009 | EP2119001A1 Balanced amplifying device having a bypass branch |
| 11/18/2009 | EP2119000A1 Chopper-stabilized instrumentation amplifier for impedance measurement |
| 11/18/2009 | CN201349199Y Amplification circuit |
| 11/18/2009 | CN101584113A Transmission device and transmission power control method |
| 11/18/2009 | CN101584112A Multi-stage amplifier with multiple sets of fixed and variable voltage rails |
| 11/18/2009 | CN101582682A Power amplifier and transmitter |
| 11/18/2009 | CN101582681A Power amplifying circuit for eliminating turn-off noise |
| 11/18/2009 | CN101582248A Source driver of display, operational amplifier and relative method |
| 11/18/2009 | CN100561859C New type digital audio power amplifier |
| 11/17/2009 | US7619667 Solid-state image device and camera including solid-state image device for selective outputs |
| 11/17/2009 | US7619482 Compact low voltage low noise amplifier |
| 11/17/2009 | US7619479 Semiconductor integrated circuit |
| 11/17/2009 | US7619476 Biasing stage for an amplifier |
| 11/17/2009 | US7619475 Cancellation of common mode oscillation in RF circuits |
| 11/17/2009 | US7619474 Analog circuit, electronic instrument, and operational amplifier |
| 11/17/2009 | US7619473 Fully-differential amplifier |
| 11/17/2009 | US7619472 Noise-shaped blocker-reject amplifier |
| 11/17/2009 | US7619471 Class D amplifier with increased efficiency |
| 11/17/2009 | US7619470 Power amplifier |
| 11/17/2009 | US7619469 Current switched circuit for switch mode power amplifiers |
| 11/17/2009 | US7619468 Doherty amplifier with drain bias supply modulation |