| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 10/04/2006 | CN1841971A Method and system for debugging time-division duplex system power amplifier linearity |
| 10/04/2006 | CN1841923A Low noise amplifier and differential amplifier with variable gain mode |
| 10/04/2006 | CN1278266C System and method for mining work flow |
| 10/03/2006 | US7116954 Tunable bandpass filter and method thereof |
| 10/03/2006 | US7116951 Transmitter circuit and method for modulation distortion compensation |
| 10/03/2006 | US7116947 Transmitter |
| 10/03/2006 | US7116946 Transmitter |
| 10/03/2006 | US7116253 Radio frequency digital-to-analog converter |
| 10/03/2006 | US7116173 High-frequency power amplifier circuit and electronic part for communication |
| 10/03/2006 | US7116167 Predistortion linearizer and method thereof |
| 10/03/2006 | US7116166 High fidelity, high power switched amplifier |
| 10/03/2006 | US7116165 Front stage amplifier with different modes |
| 10/03/2006 | US7116164 Variable-gain constant-bandwidth transimpedance amplifier |
| 10/03/2006 | US7116161 Differential amplifier circuit and drive circuit of liquid crystal display unit using the same |
| 09/28/2006 | WO2006102651A1 Low phase shift implementation of the baseband circuitry of a cartesian feedback loop |
| 09/28/2006 | WO2006102278A1 Rf power amplifier system employing an analog predistortion module using zero crossings |
| 09/28/2006 | WO2006101094A1 Transmitting apparatus, communication device, and mobile wireless unit |
| 09/28/2006 | WO2006099993A1 Amplifier circuit |
| 09/28/2006 | US20060217940 Mechanism for on-line prediction of future performance measurements in a computer system |
| 09/28/2006 | US20060217099 Activation signal output circuit |
| 09/28/2006 | US20060217092 Method for calibration of a signal receiver |
| 09/28/2006 | US20060214734 Power protecting apparatus and method for power amplifier |
| 09/28/2006 | US20060214731 Differential two-stage miller compensated amplifier system with capacitive level shifting |
| 09/28/2006 | US20060214730 Transmission amplifier |
| 09/28/2006 | US20060214728 Transmitter apparatus with extended gain control |
| 09/28/2006 | US20060214727 Methods and systems for stabilizing an amplifier |
| 09/27/2006 | EP1705801A2 Distortion compensation apparatus |
| 09/27/2006 | EP1705800A2 Linear and non-linear dual mode transmitter |
| 09/27/2006 | EP1704640A1 Amplifier predistortion and autocalibration method and apparatus |
| 09/27/2006 | EP1704452A1 Transistor arrangement with temperature compensation and method for temperature compensation |
| 09/27/2006 | CN2821532Y Wide temperature zone turbine signal amplifier |
| 09/27/2006 | CN1838529A Bias circuit for a wideband amplifier driven with low voltage |
| 09/27/2006 | CN1838528A Multiplication system capable of reducing DC bias |
| 09/27/2006 | CN1838527A Power amplifier |
| 09/27/2006 | CN1838526A Superspeed, super linear power amplifier |
| 09/26/2006 | US7113606 Adjustable harmonic distortion detector and method for using the same |
| 09/26/2006 | US7113054 Arrangement and method impedance matching |
| 09/26/2006 | US7113042 Low noise op amp |
| 09/26/2006 | US7113041 Operational amplifier |
| 09/26/2006 | US7113039 Gain-boosted opamp with capacitor bridge connection |
| 09/26/2006 | US7113038 Power amplifier |
| 09/26/2006 | US7113037 Performing remote power amplifier linearization |
| 09/26/2006 | US7113036 Method and apparatus for adaptive digital predistortion using nonlinear and feedback gain parameters |
| 09/26/2006 | US7113035 Electronic circuit |
| 09/26/2006 | US7113034 High frequency power amplifier and wireless communication module |
| 09/26/2006 | US7113032 Low distortion power amplifier and method of controlling a multi-channel power amplifier |
| 09/26/2006 | US7113031 Audio amplifier circuit with suppression of unwanted noise when powered on from standby |
| 09/26/2006 | US7113030 Class-D power amplifier capable of eliminating excessive response phenomenon when returning to a steady state from an abnormal state and an amplification method thereof |
| 09/26/2006 | US7113020 Capacitance multiplier circuit exhibiting improving bandwidth |
| 09/21/2006 | US20060212273 Real-time snoring assessment apparatus and method |
| 09/21/2006 | US20060208802 Amplifier circuit with reduced temperature dependence of the gain |
| 09/21/2006 | DE19860097B4 Schaltungseinrichtung, Verfahren zum Bereitstellen eines linearen Leistungsverstärkers und Verwendung einer Schaltungseinrichtung Circuit device, method for providing a linear power amplifier and use of a circuit device |
| 09/21/2006 | DE102005010643A1 Stromsparende differenzielle Breitbandtreiberschaltung Electric saving differential wideband driver circuit |
| 09/20/2006 | EP1703688A2 Distortion compensation apparatus |
| 09/20/2006 | EP1702405A2 Single chip power amplifier and envelope modulator |
| 09/20/2006 | EP1614216B1 Amplifier arrangement and distributed audio system |
| 09/20/2006 | EP1586162A4 High efficiency power amplification apparatus with multiple power mode |
| 09/20/2006 | EP1581994A4 Power amplifier circuit and method using bandlimited signal component estimates |
| 09/20/2006 | EP1547394A4 Packaged rf power transistor having rf bypassing/output matching network |
| 09/20/2006 | CN1835393A Audio amplifier with high power and high efficiency |
| 09/20/2006 | CN1835391A 半导体电路 Semiconductor circuit |
| 09/20/2006 | CN1835390A 低噪声放大器 Low-noise amplifier |
| 09/20/2006 | CN1276583C Differential cascode current mode driver |
| 09/20/2006 | CN1276543C Matching unit |
| 09/19/2006 | US7110742 Low noise amplifier with constant input impedance |
| 09/19/2006 | US7110730 Apparatus for mobile communication system which performs signal transmission by amplitude modulation and phase modulation |
| 09/19/2006 | US7110555 Sound signal reproducing apparatus |
| 09/19/2006 | US7109801 Low gate oxide stress power amplifier |
| 09/19/2006 | US7109800 Bias circuit for providing a constant bias current to a power amplifier |
| 09/19/2006 | US7109799 Current-controlled CMOS wideband data amplifier circuits |
| 09/19/2006 | US7109796 Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit |
| 09/19/2006 | US7109792 Table-based pre-distortion for amplifier systems |
| 09/19/2006 | US7109790 High linearity doherty communication amplifier with integrated output matching unit |
| 09/19/2006 | US7109697 Temperature-independent amplifier offset trim circuit |
| 09/14/2006 | WO2006095422A1 Strain compensation device |
| 09/14/2006 | WO2006095051A1 Measurement circuit and method for measuring the level of an rf signal, and a transmitter including a measurement circuit |
| 09/14/2006 | US20060206026 Methods, systems, and associated implantable devices for detecting radiation in patients undergoing treatment for cancer |
| 09/14/2006 | US20060202754 Digital switching amplifier |
| 09/14/2006 | US20060202752 Controllable amplifier and its use |
| 09/14/2006 | US20060202751 Controllable amplifier and method for amplifying a signal |
| 09/14/2006 | US20060202750 Operational amplifier and method for canceling offset voltage of operational amplifier |
| 09/13/2006 | EP1701451A2 Distortion compensation apparatus |
| 09/13/2006 | EP1700378A1 A switched capacitor circuit compensation apparatus and method |
| 09/13/2006 | EP1269624B1 System and method of producing direct audio from a power supply |
| 09/13/2006 | EP1199814B1 Radio device with distortion compensation |
| 09/13/2006 | CN2817213Y 音频功率放大器 Audio Power Amplifier |
| 09/13/2006 | CN1833418A Digital predistortion system and method for correcting memory effects within an RF power amplifier |
| 09/13/2006 | CN1833367A Transmission device, transmission power control method, and radio communication device |
| 09/13/2006 | CN1833359A Amplifier with high output power dynamics |
| 09/13/2006 | CN1833358A Doherty amplifier with output mixing coupler |
| 09/13/2006 | CN1832355A Distortion compensation apparatus |
| 09/13/2006 | CN1832337A Low distortion ternary state switching amplifier |
| 09/13/2006 | CN1832336A Method for optimizing radio-frequency power amplifier and radio-frequency power amplifier system |
| 09/13/2006 | CN1832335A CMOS superwide band low noise discharger |
| 09/13/2006 | CN1832334A Integrating amplifying circuit of resonant sensor |
| 09/13/2006 | CN1275384C Disadjust control of operational amplifier |
| 09/12/2006 | US7106806 Reducing distortion of signals |
| 09/12/2006 | US7106606 Voltage-current converter with adjustable quiescent current |
| 09/12/2006 | US7106149 Switchable tuneable bandpass filter with optimized frequency response |
| 09/12/2006 | US7106139 Amplification circuit and oscillation circuit including inverter circuits having a same threshold voltage |