| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/17/2011 | US7944302 Method and apparatus for biasing an amplifier |
| 05/17/2011 | US7944301 Method and apparatus for an amplifier |
| 05/17/2011 | US7944300 Bias circuit and amplifier providing constant output current for a range of common mode inputs |
| 05/17/2011 | US7944299 Method for adjusting threshold voltage and circuit therefor |
| 05/17/2011 | US7944298 Low noise and low input capacitance differential MDS LNA |
| 05/17/2011 | US7944297 Class D amplifier |
| 05/17/2011 | US7944293 Systems and methods for an adaptive bias circuit for a differential power amplifier |
| 05/17/2011 | US7944289 Minimum pulse generation in a class-D amplifier |
| 05/16/2011 | CA2721024A1 Class resonant-h electrosurgical generators |
| 05/12/2011 | WO2011055964A2 Doherty amplifier |
| 05/12/2011 | WO2011054727A1 Digital affine transformation modulated power amplifier for wireless communications |
| 05/12/2011 | WO2011054671A1 Microphone assembly |
| 05/12/2011 | US20110110538 Power amplifier and method for restraining power of improved power amplifier |
| 05/12/2011 | US20110109393 Stacked pre-driver amplifier |
| 05/12/2011 | US20110109391 Power Amplifier with Stabilising Network |
| 05/12/2011 | US20110109390 Transconductor circuit |
| 05/12/2011 | US20110109389 Amplifier circuit, integrated circuit and radio frequency communication unit |
| 05/12/2011 | US20110109388 Differential rf amplifier |
| 05/12/2011 | US20110109387 Power amplification apparatus for envelope modulation of high frequency signal and method for controlling the same |
| 05/12/2011 | US20110109386 Class d amplifier capable of setting restraint power |
| 05/11/2011 | EP2320563A1 Power amplification device, and transmission device and communication device using same |
| 05/11/2011 | EP2320562A1 Calibration of signal processing apparatus |
| 05/11/2011 | EP2320561A1 Power amplification device, and transmission device and communication device both using thereof |
| 05/11/2011 | EP2320296A1 Circuit for generating a reference voltage with compensation of the offset voltage |
| 05/11/2011 | EP2320295A1 Circuit for generating a reference voltage |
| 05/11/2011 | EP2319273A1 A passive transmitter architecture with switchable outputs for wireless applications |
| 05/11/2011 | EP1825592B1 A power multiplier apparatus and method |
| 05/11/2011 | CN201830210U Linear isolating and amplifying device for analog signals |
| 05/11/2011 | CN201830209U Multipath differential compensation amplifying circuit suitable for high-orbit platforms |
| 05/11/2011 | CN201830208U Sampling circuit of relay tester amplifier |
| 05/11/2011 | CN201830207U Hybrid integrated high-power operational amplifier |
| 05/11/2011 | CN201830206U Multichannel alternating current signal amplifying and upraising circuit |
| 05/11/2011 | CN201830205U TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) digital predistortion power amplifier |
| 05/11/2011 | CN201830204U 功率放大器 PA |
| 05/11/2011 | CN201830139U Negative power-supply generating circuit and audio amplification circuit with same |
| 05/11/2011 | CN1613179B Method and device for switching amplification of input data flow |
| 05/11/2011 | CN102055477A Amplitude-interleaving analog digital composite signal processing circuit |
| 05/11/2011 | CN102055422A Circuit for reducing flicker noise of MOS tube |
| 05/11/2011 | CN102055421A Differential to single-end amplifier with gain control |
| 05/11/2011 | CN102055420A Wave detector circuit and high-frequency circuit |
| 05/11/2011 | CN102055419A High-efficiency linear power amplifier for underwater acoustic communication |
| 05/11/2011 | CN102055418A High perceived audio quality class d amplifier |
| 05/11/2011 | CN102055417A Driving amplifier circuit |
| 05/11/2011 | CN102055416A Method and system for ageing radio-frequency power amplifier |
| 05/11/2011 | CN102055415A High-frequency amplifier and radio communication apparatus |
| 05/11/2011 | CN102055414A Radio-frequency power amplifier module and mobile communication terminal |
| 05/11/2011 | CN102055413A System and method for handling wide dynamic range signals encountered in vibration analysis using a logarithmic amplifier |
| 05/11/2011 | CN102055411A Power amplifier linearization correcting circuit and method based on multi-channel feedback |
| 05/11/2011 | CN102055409A Multi-stage CMOS power amplifier |
| 05/11/2011 | CN101471634B Output stage circuit and operational amplifier applying the same |
| 05/11/2011 | CN101465620B Radio frequency buffering amplifying circuit |
| 05/11/2011 | CN101369803B Differential amplifier circuit and drive circuit of liquid crystal display unit using the same |
| 05/10/2011 | US7941107 High linearity, high efficiency power amplifier with DSP assisted linearity optimization |
| 05/10/2011 | US7940126 Signal amplification apparatus with advanced linearization |
| 05/10/2011 | US7940124 Bi-directional and adjustable current source |
| 05/10/2011 | US7940123 DC series-fed amplifier array |
| 05/10/2011 | US7940121 Operational amplifier and pipeline AD converter |
| 05/10/2011 | US7940120 Power amplifier linearization using RF feedback |
| 05/10/2011 | US7939790 Method and apparatus for controlling the gain of an avalanche photodiode with fluctuations in temperature |
| 05/05/2011 | WO2011052855A1 Low-noise amplifier and a low-noise-amplifier integrated-circuit device |
| 05/05/2011 | WO2011052458A1 Error amplifier |
| 05/05/2011 | WO2011051146A1 Multi-port amplification device that self-compensates in the presence of traffic |
| 05/05/2011 | WO2011051068A1 Crosstalk suppression |
| 05/05/2011 | WO2011050976A1 Amplifier |
| 05/05/2011 | WO2011050974A1 Amplifier activation |
| 05/05/2011 | WO2011050973A1 Calibration of signal processing apparatus |
| 05/05/2011 | WO2011031213A3 Power amplifier |
| 05/05/2011 | WO2011031003A3 Switched capacitor circuit |
| 05/05/2011 | WO2010008586A3 Low-noise high efficiency bias generation circuits and method |
| 05/05/2011 | US20110103619 Amplifier circuit and methods of operation thereof |
| 05/05/2011 | US20110103166 Layout structure of bit line sense amplifiers for a semiconductor memory device |
| 05/05/2011 | US20110102620 Solid-state imaging device, manufacturing method thereof, camera, and electronic device |
| 05/05/2011 | US20110102089 Semiconductor device and method of controlling the same |
| 05/05/2011 | US20110102087 Dc slope generator |
| 05/05/2011 | US20110102086 Input common mode circuit |
| 05/05/2011 | US20110102085 Differential amplifier |
| 05/05/2011 | US20110102084 Multi-stage cmos power amplifier |
| 05/05/2011 | US20110102083 High performace lvds driver for scalable supply |
| 05/05/2011 | US20110102082 Minimal area, power efficient, high swing and monolitihic ground centered headphone amplifier circuit operable on a low voltage |
| 05/05/2011 | US20110102081 Amplifier circuit with overshoot suppression |
| 05/05/2011 | US20110102079 High efficiency linear amplifier |
| 05/05/2011 | US20110102058 Circuit for generating a reference voltage |
| 05/05/2011 | US20110101208 Photocurrent monitoring circuit |
| 05/05/2011 | CA2778855A1 Multi-port amplification device that self-compensates in the presence of traffic |
| 05/04/2011 | EP2317646A1 Amplifier |
| 05/04/2011 | EP2317644A1 Amplifier activation |
| 05/04/2011 | EP2316163A1 Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels |
| 05/04/2011 | EP1961124B1 Low noise amplifier |
| 05/04/2011 | CN201821426U UHF (ultra-high-frequency) digital television transmitter power amplification device and power amplification equipment |
| 05/04/2011 | CN201821322U Amplifier with higher power and adopting backspacing feedforward method |
| 05/04/2011 | CN1968009B System for dynamic time offsetting in interleaved power amplifiers |
| 05/04/2011 | CN1612643B Parameter display method and parameter setting apparatus |
| 05/04/2011 | CN102047555A Modified distributed amplifier to improve low frequency efficiency and noise figure |
| 05/04/2011 | CN102045035A Low-power consumption broadband high-gain high-swing rate single-level operation transconductance amplifier |
| 05/04/2011 | CN102045034A 可变增益放大电路 Variable gain amplifying circuit |
| 05/04/2011 | CN102045033A Amplifier with single-ended input and differential output |
| 05/04/2011 | CN102045032A Power amplifier |
| 05/04/2011 | CN102045031A Circuit and method for radio frequency amplifier |
| 05/04/2011 | CN102045030A Amplifier control method, amplifier control system and amplifier circuit |
| 05/04/2011 | CN101562430B Difference input signal receiving circuit |