| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 08/04/2010 | CN201541240U Class-D audio power amplifier circuit |
| 08/04/2010 | CN201541239U 数字预失真功率放大装置 Digital pre-distortion power amplifier means |
| 08/04/2010 | CN201541238U Preamplifier of magnetic resonance imaging MRI system capable of reducing low-frequency noise |
| 08/04/2010 | CN201540363U 1H/19F channel preamplifier of high-field nuclear magnetic resonance spectrometer |
| 08/04/2010 | CN1901363B Light-receiving amplifier circuit and optical pick-up device using the same |
| 08/04/2010 | CN101796734A Antenna device and electronic apparatus having the antenna device mounted therein |
| 08/04/2010 | CN101796720A Input circuitry for transistor power amplifier and method for designing such circuitry |
| 08/04/2010 | CN101795116A Regulation and control device of optical time delay unit |
| 08/04/2010 | CN101795115A Multiband matching circuit and multiband power amplifier |
| 08/04/2010 | CN101795114A Radio frequency (RF) preamplifier system of wireless terminal |
| 08/04/2010 | CN101795111A Operational amplifier circuit |
| 08/03/2010 | US7769190 Audio signal processing circuit and a display device incorporating the same |
| 08/03/2010 | US7768354 Radio-frequency power amplifier |
| 08/03/2010 | US7768352 High-speed, multi-stage class AB amplifiers |
| 08/03/2010 | US7768351 Variable gain current input amplifier and method |
| 08/03/2010 | US7768350 Output gain stage for a power amplifier |
| 08/03/2010 | US7768349 Transconductance amplifier |
| 08/03/2010 | US7768348 High-frequency circuit |
| 08/03/2010 | US7768347 Device comprising a switching amplifier and a load |
| 08/03/2010 | US7768345 Amplifier |
| 08/03/2010 | US7768321 Single-ended sense amplifier using dynamic reference voltage and operation method thereof |
| 08/03/2010 | US7768320 Process variation tolerant sense amplifier flop design |
| 07/29/2010 | WO2010084633A1 Transimpedance amplifier |
| 07/29/2010 | WO2010084544A1 High frequency amplifier, wireless device and control method |
| 07/29/2010 | WO2010066853A3 Multiport amplifier adjustment |
| 07/29/2010 | US20100188155 Closed loop ramp up for pop and click reduction in an amplifier |
| 07/29/2010 | US20100188154 Trans-impedance amplifier |
| 07/29/2010 | US20100188153 High-efficiency power amplification apparatus using saturated operation and method for controlling the same |
| 07/29/2010 | US20100188152 Signal conversion circuit and rail-to-rail circuit |
| 07/29/2010 | US20100188151 Operational amplifier and pipeline ad converter |
| 07/29/2010 | US20100188150 Switching Amplifier |
| 07/29/2010 | US20100188147 Multi-way doherty amplifier |
| 07/29/2010 | US20100188146 High Efficiency Power Amplifier Having Embedded Switching |
| 07/29/2010 | US20100187405 Photoelectric conversion device and manufacturing method thereof |
| 07/29/2010 | CA2750278A1 Trans-impedance amplifier |
| 07/28/2010 | EP2211519A1 Waveform encoding for wireless applications |
| 07/28/2010 | EP2211461A1 Power amplifier circuit, and transmitter and wireless communication device using the same |
| 07/28/2010 | EP2211460A1 Amplifier circuitry |
| 07/28/2010 | EP2211459A1 Amplifier circuit with a first and a second output line |
| 07/28/2010 | EP2211458A1 Charge amplifier with DC feedback sampling |
| 07/28/2010 | EP2008360B1 Elimination of dummy detector on optical detectors using input common mode feedback |
| 07/28/2010 | EP1985014B1 Pwm feedback/feed-forward protection |
| 07/28/2010 | EP1582039B1 Isolation interface with capacitive barrier and method for transmitting a signal by means of such isolation interface |
| 07/28/2010 | CN201536352U Ka波段Gunn二极管连续波注入锁定放大器 Ka-band continuous wave injection locked Gunn diode amplifier |
| 07/28/2010 | CN1941630B Open-loop slew-rate controlled output driver |
| 07/28/2010 | CN101790842A Systems and methods for controlling audio volume in the processor of a high definition audio codec |
| 07/28/2010 | CN101789805A Amplifying device and signal processing method based on same |
| 07/28/2010 | CN101789789A Generating circuit from reference voltage |
| 07/28/2010 | CN101789765A Low power consumption high efficiency operational amplifier circuit and operating method thereof |
| 07/28/2010 | CN101789764A Radio frequency power amplifier |
| 07/28/2010 | CN101789763A Darlington transistor amplifier circuit |
| 07/28/2010 | CN101409531B Pre-amplification circuit for radiofrequency signal |
| 07/28/2010 | CN101282110B Low-power consumption single-ended input difference output low-noise amplifier |
| 07/27/2010 | US7764125 Reconfigurable tunable RF power amplifier |
| 07/27/2010 | US7764124 Broadband low noise amplifier |
| 07/27/2010 | US7764123 Rail to rail buffer amplifier |
| 07/27/2010 | US7764122 Dual stage source/sink amplifier circuit with quiescent current determination |
| 07/27/2010 | US7764121 Differential amplifier, method for amplifying signals of differential amplifier, and display driving device having differential amplifier |
| 07/27/2010 | US7764120 Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels |
| 07/22/2010 | WO2010082949A1 Ultra low noise high linearity lna for multi-mode transceiver |
| 07/22/2010 | WO2010082235A1 Variable gain amplifier and high-frequency signal receiving apparatus comprising the same |
| 07/22/2010 | US20100184399 Switched current resistor programmable gain array for low-voltage wireless lan and method using the same |
| 07/22/2010 | US20100182301 Operational amplifier, semiconductor device, and display device |
| 07/22/2010 | US20100182093 Single-ended to differential converting apparatus and rf receiving apparatus |
| 07/22/2010 | US20100182090 Ultra low noise high linearity lna for multi-mode transceiver |
| 07/22/2010 | US20100182089 Method and system for processing signals via an integrated low noise amplifier having configurable input signaling mode |
| 07/22/2010 | US20100182088 Operational amplifier |
| 07/22/2010 | US20100182087 Anti-pop method and apparatus for class ab amplifiers |
| 07/22/2010 | US20100182086 Super source follower output impedance enhancement |
| 07/22/2010 | US20100182085 Error amplifier structures |
| 07/22/2010 | US20100182084 Low rf interference switching amplifier and method |
| 07/22/2010 | US20100182083 Amplifier circuitry |
| 07/22/2010 | US20100182082 Amplifier circuit with a first and a second output line |
| 07/22/2010 | US20100182080 Dc-offset cancelled programmable gain array for low-voltage wireless lan system and method using the same |
| 07/22/2010 | US20100182050 Generating a trigger from a differential signal |
| 07/21/2010 | EP2209207A2 Semiconductor integrated circuit and video signal output circuit |
| 07/21/2010 | EP1609239B1 High efficiency amplifier and method of designing same |
| 07/21/2010 | EP1442520B1 Balanced power amplifier |
| 07/21/2010 | EP1127407B1 An amplifier for use in a mobile phone |
| 07/21/2010 | CN201533399U Vehicle-mounted power amplifier with independent sound channel |
| 07/21/2010 | CN201533397U Digital audio-frequency power-amplification circuit |
| 07/21/2010 | CN201533302U PLF synthesizer integrating double-frequency output |
| 07/21/2010 | CN201533301U Photosensitive receiving circuit for optoelectronic coupler |
| 07/21/2010 | CN201533290U Audio power amplifier starting-up noise suppression circuit |
| 07/21/2010 | CN201533287U Single-ended output D-type amplifier with dual-modulation module |
| 07/21/2010 | CN201533286U Dual-band high-efficiency radio-frequency power amplifier |
| 07/21/2010 | CN201533285U Ldmos protection circuit |
| 07/21/2010 | CN201532251U Computer noise identifier |
| 07/21/2010 | CN101785181A Signal amplifier structure for radio transmitter |
| 07/21/2010 | CN101785180A Broadband power amplifier |
| 07/21/2010 | CN101785179A A device for and a method of generating signals |
| 07/21/2010 | CN101785178A Circuitry and method for reducing second and third-order nonlinearities |
| 07/21/2010 | CN101785118A Driving device |
| 07/21/2010 | CN101783655A Novel energy-saving micro-strip synthetic power amplifier circuit |
| 07/21/2010 | CN101783654A High-gain broadband radio-frequency low noise amplifier |
| 07/21/2010 | CN101783653A Method and system for variable-gain amplifier |
| 07/21/2010 | CN101355347B Gain amplifier for linear programmable switch capacitance |
| 07/20/2010 | US7761013 Optical receiver having bias circuit for avalanche photodiode with wide dynamic range |
| 07/20/2010 | US7760180 Drive circuit, operation state detection circuit, and display device |
| 07/20/2010 | US7760029 High-bandwidth high-gain amplifier |