| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 08/15/2007 | CN2935629Y RF fundamental wave canceling circuit |
| 08/15/2007 | CN1332506C Amplifying circuit |
| 08/15/2007 | CN101019312A Buffer amplifier, driver IC, and display apparatus using that driver IC |
| 08/15/2007 | CN101019311A A method and apparatus for pre-conditioning an electrical signal |
| 08/15/2007 | CN101018050A Delay line calibration circuit comprising asynchronous arbiter element |
| 08/15/2007 | CN101018042A Ultra-high frequency low noise amplifier |
| 08/15/2007 | CN101018041A Frequency switching circuit for restraining the D power amplifier POP sound and its method |
| 08/14/2007 | US7257385 Wireless communication semiconductor integrated circuit device and wireless communication system |
| 08/14/2007 | US7257384 Methods and apparatus for detecting the envelope of RF power signals |
| 08/14/2007 | US7257164 Class D amplifier |
| 08/14/2007 | US7256735 Satellite amplifier system |
| 08/14/2007 | US7256654 Amplifying a signal using a current shared power amplifier |
| 08/14/2007 | US7256653 High-frequency power amplifier and communication apparatus |
| 08/14/2007 | US7256652 Differential input receiver having over-voltage protection |
| 08/14/2007 | US7256651 System and method for providing a constant swing high-gain complementary differential limiting amplifier |
| 08/14/2007 | US7256650 VSWR tolerant power detector |
| 08/14/2007 | US7256649 Multiple signal intermodulation reduction system |
| 08/14/2007 | US7256647 Method and apparatus for presetting an amplifier |
| 08/14/2007 | US7256646 Neutralization techniques for differential low noise amplifiers |
| 08/14/2007 | US7256573 Distributed active transformer power control techiques |
| 08/14/2007 | US7256434 Heterojunction bipolar transistor and method for manufacturing the same, and power amplifier using the same |
| 08/14/2007 | US7256384 Signal-enhancement system for photodetector outputs |
| 08/14/2007 | US7256382 Solid state imaging device, method of driving solid state imaging device and image pickup apparatus |
| 08/09/2007 | WO2007090008A2 Method and apparatus for controlling an output voltage in a power amplifier |
| 08/09/2007 | WO2007088363A1 Power amplifier with digital pre-distorsion |
| 08/09/2007 | WO2007087812A1 Audio amplifier with speaker protection against transients |
| 08/09/2007 | WO2007033646A3 Feedback correction for switching amplifiers |
| 08/09/2007 | US20070184797 Apparatus for radio telecommunication system and method of building up output power |
| 08/09/2007 | US20070184790 Control of a power amplifier for reducing power consumption in a transceiver |
| 08/09/2007 | US20070184789 Cartesian loop transmitter and method of adjusting an output level of such transmitter |
| 08/09/2007 | US20070183530 Transmission device and radio communication device |
| 08/09/2007 | US20070182490 Power amplifier with close-loop adaptive voltage supply |
| 08/09/2007 | US20070182488 Differential amplifying system |
| 08/09/2007 | US20070182487 Differential amplifer and operational amplifier |
| 08/09/2007 | US20070182481 Distributed amplifier with built-in filtering functions |
| 08/09/2007 | US20070181783 Differential Color Sensor Without Filters |
| 08/09/2007 | US20070181782 Cmos light sensor and operation method thereof |
| 08/09/2007 | US20070181781 Integrated optical transceiver |
| 08/09/2007 | DE102006005080A1 Digital amplifier for digital input signals, has digital-analog converter to exchange digital input signal in discrete and temporal analog signal whose amplitude disturbances are eliminated by upstream stage having smooth voltage supply |
| 08/09/2007 | DE102006005079A1 Digital amplifier for e.g. loudspeaker, has power switching stage with supply voltage for amplifying discrete signal, and reference switching stage with smooth supply voltage for producing reference signal depending on discrete signal |
| 08/08/2007 | EP1816742A2 Differential amplifier and radio system with differential amplifier |
| 08/08/2007 | EP1815593A1 Power amplifier for amplifying high-frequency (h.f.) signals |
| 08/08/2007 | EP1815591A1 Tunable low noise amplifier |
| 08/08/2007 | EP1815590A2 Transmit signal generator and method |
| 08/08/2007 | EP1815304A2 Apparatus for filtering a reference voltage and mobile phones comprising such apparatus |
| 08/08/2007 | EP1512221A4 Power amplifying system with supply and bias enhancements |
| 08/08/2007 | CN101015178A Receiver for a differential data bus |
| 08/08/2007 | CN101015121A 失真补偿电路 Distortion compensating circuit |
| 08/08/2007 | CN101015119A System and method for current-mode amplitude modulation |
| 08/08/2007 | CN101013882A 差动放大器及数模转换器 Differential amplifier and DAC |
| 08/08/2007 | CN101013881A 放大器 Amplifier |
| 08/08/2007 | CN101013562A Output circuit and display device using the same |
| 08/07/2007 | US7254377 Parallel operation system of transmission amplifier |
| 08/07/2007 | US7254169 Method and apparatus for determining a loss of signal condition |
| 08/07/2007 | US7254164 Method for transconductance linearization for DC-coupled applications |
| 08/07/2007 | US7253690 Method and apparatus for an LNA with high linearity and improved gain control |
| 08/07/2007 | US7253689 Low distortion amplifier |
| 08/07/2007 | US7253688 Input matching circuit for multiband low noise amplifier |
| 08/07/2007 | US7253686 Differential amplifiers with enhanced gain and dynamic range |
| 08/07/2007 | US7253685 Class AB amplifier having adjustable quiescent current and output current |
| 08/07/2007 | US7253684 Method and apparatus for reducing ripple in Class D amplifiers |
| 08/07/2007 | US7253683 Method and apparatus for reducing ripple in class D amplifiers |
| 08/07/2007 | US7253682 Antenna amplifier |
| 08/07/2007 | US7253680 Amplifier system with current-mode servo feedback |
| 08/07/2007 | US7253393 Control of a photosensitive cell |
| 08/07/2007 | US7253391 Optical sensor device and electronic apparatus |
| 08/02/2007 | WO2007087568A2 Systems and methods for improving performance in a digital amplifier by adding an ultrasonic signal to an input audio signal |
| 08/02/2007 | WO2007086939A2 Cmos integrated super-heterodyne television receiver with multiple signal paths |
| 08/02/2007 | WO2007085866A1 Low noise amplifier |
| 08/02/2007 | WO2007085788A1 Amplifier control |
| 08/02/2007 | US20070176688 Method and apparatus for controlling an output voltage in a power amplifier |
| 08/02/2007 | US20070176687 High frequency power amplifier |
| 08/02/2007 | US20070176685 Extremely low noise V-band amplifier |
| 08/02/2007 | US20070176681 Transmission power control device |
| 08/02/2007 | US20070176680 Operational transconductance amplifier |
| 08/02/2007 | US20070176679 Differential amplifier and radio system with a differential amplifier |
| 08/02/2007 | US20070176676 Modulation signals for a satellite navigation system |
| 08/02/2007 | US20070176634 Transistor arrangement, integrated circuit and method for operating field effect transistors |
| 08/02/2007 | US20070176580 Semiconductor integrated circuit device |
| 08/02/2007 | US20070176082 Microlensed focal plane array (FPA) using sub-pixel de-selection for improved operability |
| 08/02/2007 | DE102006060769A1 D-Verstärker mit Beseitigung des Einschaltklickgeräusches D amplifier with elimination of Einschaltklickgeräusches |
| 08/01/2007 | EP1814220A1 A variable power adaptive transmitter |
| 08/01/2007 | EP1813069A2 Systems and methods for vector power amplification |
| 08/01/2007 | EP1813015A1 Arrangement for amplifying a pwm input signal |
| 08/01/2007 | EP1756941A4 Multi-band low noise amplifier system |
| 08/01/2007 | EP1658673A4 Low noise, electric field sensor |
| 08/01/2007 | CN2930100Y Pulse width modulation power thick film circuit |
| 08/01/2007 | CN1329898C Current-voltage transforming circuit employing limiter circuit |
| 08/01/2007 | CN101010873A Audio signal amplifying circuit and electronic device using the same |
| 08/01/2007 | CN101009478A Differential signal receiver |
| 07/31/2007 | US7251462 Modulation circuit device, modulation method and radio communication device |
| 07/31/2007 | US7251292 Technique and apparatus for low power wireless communication |
| 07/31/2007 | US7251290 Adaptive controller for linearization of transmitter |
| 07/31/2007 | US7250820 Power distribution and biasing in RF switch-mode power amplifiers |
| 07/31/2007 | US7250819 Input tracking current mirror for a differential amplifier system |
| 07/31/2007 | US7250816 Method and apparatus for combining multiple signals for high efficiency applications |
| 07/31/2007 | US7250814 Variable gain amplifier |
| 07/31/2007 | US7250808 Differential charge pump circuit |
| 07/31/2007 | US7250791 Current feedback amplifiers |
| 07/31/2007 | US7250595 Photo-detector filter having a cascaded low noise amplifier |