| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 04/15/2010 | US20100090765 Programmable Gain Amplifier |
| 04/15/2010 | US20100090764 Class d amplifier |
| 04/15/2010 | US20100090725 Sense-amplifier control circuit and controlling method of sense amplifier |
| 04/14/2010 | EP2175555A1 Distortion compensating apparatus and method |
| 04/14/2010 | CN201438753U Network audio digital amplifier |
| 04/14/2010 | CN201438690U Circuit for reducing noise coefficient of amplifier |
| 04/14/2010 | CN201438689U High and low power combining circuit for RF power amplifier |
| 04/14/2010 | CN1961477B Automatic current reduction biasing technique for RF amplifier |
| 04/14/2010 | CN1774858B Dual band power amplifier with improved isolation |
| 04/14/2010 | CN101145762B Amplifier and method for adding bandwidth via current injection |
| 04/13/2010 | US7696828 Multi-linearity mode LNA having a deboost current path |
| 04/13/2010 | US7696827 Power amplifier system provided with improved protection function |
| 04/13/2010 | US7696826 Temperature compensation of collector-voltage control RF amplifiers |
| 04/13/2010 | US7696825 Apparatus for receiving input and bias signals at common node |
| 04/13/2010 | US7696824 Differential audio amplifier |
| 04/13/2010 | US7696823 System and method for linearizing a CMOS differential pair |
| 04/13/2010 | US7696818 Amplifying apparatus |
| 04/13/2010 | US7696467 Semiconductor photosensor device with sensitivity region for wide dynamic range and information apparatus |
| 04/13/2010 | US7695085 Variable gain amplifier having variable gain DC offset loop |
| 04/08/2010 | WO2010039446A2 Systems and methods of rf power transmission, modulation, and amplification, including blended control embodiments |
| 04/08/2010 | WO2010038111A1 Wireless communication device and semiconductor package device having a power amplifier therefor |
| 04/08/2010 | WO2010037987A1 Network for controlling the power supply to a system of active elements |
| 04/08/2010 | WO2010037764A1 Excitation stage for high frequency generator |
| 04/08/2010 | WO2010037319A1 Device and method for eliminating feedback common mode signals |
| 04/08/2010 | WO2010002932A3 Method and system for auditory enhancement and hearing conservation |
| 04/08/2010 | US20100086315 Optical receiver able to prevent los alarm from malfunctioning |
| 04/08/2010 | US20100085790 Amplifier circuit and associative memory |
| 04/08/2010 | US20100085344 Operational amplifier circuit and display apparatus |
| 04/08/2010 | US20100085120 Adaptive bias technique for field effect transistor |
| 04/08/2010 | US20100085118 Dead-time locking circuit |
| 04/08/2010 | US20100084542 Imaging device with sense and couple electrodes |
| 04/08/2010 | DE102009040546A1 IQ-Modulationssystem und Verfahren für geschaltete Verstärker IQ modulation system and method for switched amplifier |
| 04/07/2010 | EP2173031A1 Amplifier arrangement, measurement arrangement and signal processing method |
| 04/07/2010 | EP2171841A2 Systems and methods for saturation detection and correction in a power control loop |
| 04/07/2010 | EP2171840A1 Amplifier with configurable dc-coupled or ac-coupled output |
| 04/07/2010 | EP2171839A1 Electronic device and a method of biasing a mos transistor in an integrated circuit |
| 04/07/2010 | EP1456941B1 Offset calibration system and method for a high gain signal channel |
| 04/07/2010 | CN101282108B 低差动电压输出电路 Low differential voltage output circuit |
| 04/07/2010 | CN101151654B Load driving circuit |
| 04/06/2010 | US7692495 Tunable RF bandpass transconductance amplifier |
| 04/06/2010 | US7692494 Low strain variable frequency amplifier |
| 04/06/2010 | US7692493 High-efficiency single to differential amplifier |
| 04/06/2010 | US7692492 Operational amplifier |
| 04/06/2010 | US7692490 Power amplifying device having linearizer |
| 04/06/2010 | US7692489 Differential two-stage miller compensated amplifier system with capacitive level shifting |
| 04/06/2010 | US7692488 Output DC offset protection for class D amplifiers |
| 04/06/2010 | US7692487 Low RF interference switching amplifier and method |
| 04/01/2010 | WO2010034782A1 A system and a method for generating an error voltage |
| 04/01/2010 | WO2010002769A3 A circuit with one or more depletion mode transistors |
| 04/01/2010 | US20100079211 Matching circuit, and radio-frequency power amplifier and mobile phone including the same |
| 04/01/2010 | US20100079208 Minimum pulse generation in a class-D amplifier |
| 04/01/2010 | US20100079207 Staged linear conversion method |
| 04/01/2010 | US20100079205 Multi-Channel Amplifier |
| 04/01/2010 | DE102009029696A1 Switched-Capacitor-Verstärkeranordnung mit niedrigem Eingangsstrom Switched-Capacitor amplifier arrangement with a low input current |
| 04/01/2010 | DE102005047171B4 Schaltungsanordnung mit einem rückgekoppelten Operationsverstärker Circuit arrangement having a feedback operational amplifier |
| 04/01/2010 | DE102005020803B4 Schaltungsanordnung mit einer Verstärkeranordnung und einer Offset-Kompensationsanordnung Circuitry with an amplifier arrangement and an offset compensation arrangement |
| 04/01/2010 | DE102004022354B4 Schaltung zur Erzeugung pulsweitenmodulierter Signale Circuit for generating a pulse-width modulated signals |
| 03/31/2010 | EP2169825A1 High-efficiency duel-state power amplifier |
| 03/31/2010 | EP2169824A1 A switched capacitor error amplifier circuit for generating a precision current reference or for use in a precision oscillator |
| 03/31/2010 | EP2169823A1 Combined multi-path high-efficiency power amplifier |
| 03/31/2010 | EP1867039B1 An electrical circuit, a detection system and an operating method thereof |
| 03/31/2010 | CN201435714Y Automatic changeover control circuit of H type power-amplification high-low DC power supply voltage |
| 03/31/2010 | CN201435713Y Power amplifier with double feedback digital audio frequency |
| 03/31/2010 | CN201430870Y Ultrasonic control circuit for mosquito dispeller |
| 03/31/2010 | CN101689838A Signal conversion circuit and rail-to-rail circuit |
| 03/31/2010 | CN101689837A Amplifier with configurable DC-coupled or AC-coupled output |
| 03/30/2010 | US7688987 Electret microphone buffer circuit with significantly enhanced power supply rejection |
| 03/30/2010 | US7688289 Organic EL driver circuit and organic EL display device |
| 03/30/2010 | US7688148 Implementing layout of integrated circuit containing operational amplifier |
| 03/30/2010 | US7688147 Floating differential amplifier architectures |
| 03/30/2010 | US7688146 Single-ended input to differential-ended output low noise amplifier |
| 03/30/2010 | US7688145 Variable gain amplifying device |
| 03/30/2010 | US7688144 Variable-gain wide-dynamic-range amplifier |
| 03/30/2010 | US7688143 Variable gain circuit |
| 03/30/2010 | US7688142 High performance variable gain amplifier, method of use and design structure |
| 03/30/2010 | US7688141 Multi-amplifier circuit |
| 03/30/2010 | US7688140 Differential amplifier circuit |
| 03/30/2010 | US7688137 Low power consuming mixed mode power amplifier |
| 03/30/2010 | US7688135 N-way Doherty distributed power amplifier |
| 03/30/2010 | CA2515167C Carrier to noise ratio estimations from a received signal |
| 03/25/2010 | WO2010033735A1 Active-time dependent bias current generation for switched-capacitor circuits |
| 03/25/2010 | WO2010033727A2 Transmitters for wireless power transmission |
| 03/25/2010 | WO2010033607A1 Voltage clamp |
| 03/25/2010 | WO2010032727A1 Sample-and-hold circuit and method for controlling same |
| 03/25/2010 | WO2010032726A1 Sample-and-hold circuit and method for controlling same |
| 03/25/2010 | WO2010032283A1 Harmonic injection push-pull amplifier |
| 03/25/2010 | WO2009149291A3 Coupled cavity traveling wave tube |
| 03/25/2010 | US20100074370 Antenna amplifier, receiving system, operating method, and use of a receiving system |
| 03/25/2010 | US20100073572 Variable-gain low noise amplifier for digital terrestrial applications |
| 03/25/2010 | US20100073214 Differential operational amplifier circuit correcting settling error for use in pipelined a/d converter |
| 03/25/2010 | US20100073092 Method and apparatus for treating a received signal to present a resulting signalwith improved signal accuracy |
| 03/25/2010 | US20100073091 Circuit arrangement for providing an analog signal, and electronic apparatus |
| 03/25/2010 | US20100073090 Current sense amplifier |
| 03/25/2010 | US20100073089 High pass filter chip |
| 03/25/2010 | US20100073086 Method and apparatus for producing linearized optical signals |
| 03/25/2010 | US20100073085 Generation and Amplification of Substantially Constant Envelope Signals, Including Switching an Output Among a Plurality of Nodes |
| 03/25/2010 | US20100073084 Systems and methods for a level-shifting high-efficiency linc amplifier using dynamic power supply |
| 03/25/2010 | US20100073083 Nested transimpedance amplifier |
| 03/25/2010 | DE102009024483A1 Kaskodeschaltung Cascode |
| 03/24/2010 | EP2166667A2 Analog circuit |