| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 06/17/2004 | US20040113701 Bias circuit for a radio frequency power amplifier |
| 06/17/2004 | US20040113700 Adaptive active bias compensation technique for power amplifiers |
| 06/17/2004 | US20040113699 Radio frequency power amplifier and communication system |
| 06/17/2004 | US20040113698 Signal amplifier using a doherty amplifier |
| 06/17/2004 | US20040113697 Single package multi-chip RF power amplifier |
| 06/17/2004 | US20040113696 Capacitor compensation in miller compensated circuits |
| 06/17/2004 | US20040113694 High gain, high bandwidth cmos transimpedance amplifier |
| 06/17/2004 | US20040113693 Amplifier and method for processing signals |
| 06/17/2004 | US20040113692 Opamp with infinite open loop gain |
| 06/17/2004 | US20040113691 Variable gain amplifier |
| 06/17/2004 | US20040113690 System and method for reducing second order distortion in electronic circuits |
| 06/17/2004 | US20040113689 Class E/F switching power amplifiers |
| 06/17/2004 | US20040113686 Absolute power detector |
| 06/17/2004 | US20040113685 DC offset cancellation techniques |
| 06/17/2004 | US20040113684 Center of gravity compensation of Class-D amplifier |
| 06/17/2004 | US20040113683 Linear-in-dB variable gain amplifier |
| 06/17/2004 | US20040112350 High-frequency ignition system for an internal combustion engine |
| 06/17/2004 | DE4426157B4 Hochfrequenz-Verstärker High-frequency amplifier |
| 06/17/2004 | DE10254180A1 Car electromechanical actuator current measurement amplifier has low pass input filter and control signal controlled isolation switch |
| 06/17/2004 | DE10251308A1 Schaltung und Verfahren zum Steuern des Ruhestroms in einer geschalteten Kondensatorschaltung Circuit and method for controlling the quiescent current in a switched capacitor circuit |
| 06/16/2004 | EP1429455A1 Linearization of a PDM class-D amplifier |
| 06/16/2004 | EP1429454A1 Center of gravity compensation of class-D amplifier |
| 06/16/2004 | EP1429452A1 Adaptive active bias compensation technique for power amplifiers |
| 06/16/2004 | EP1428314A1 Ping-pong amplifier with auto-zeroing and chopping |
| 06/16/2004 | EP1428313A2 A system and method for minimizing dissipation in rf power amplifiers |
| 06/16/2004 | EP1428093A1 Amplifier having a variable power factor |
| 06/16/2004 | EP1336136B1 Method for adjusting a bgr circuit |
| 06/16/2004 | CN1505261A Differential output driving device |
| 06/16/2004 | CN1505260A TV signal switching circuit |
| 06/16/2004 | CN1154390C Electric efficiency raising circuit of radio-frequency power amplifier in double-mode mobile telephone |
| 06/15/2004 | US6751449 Circuit configuration for band changeover in high-frequency receivers |
| 06/15/2004 | US6751268 Bandpass predistorting expansion method and apparatus for digital radio transmission |
| 06/15/2004 | US6750770 Transponder with a changeable circuit configuration |
| 06/15/2004 | US6750724 Multistage amplifier |
| 06/15/2004 | US6750722 Bias control for HBT power amplifiers |
| 06/15/2004 | US6750721 HBT linearizer and power booster |
| 06/15/2004 | US6750720 High-frequency amplifier |
| 06/15/2004 | US6750718 Radio-frequency amplifier |
| 06/15/2004 | US6750716 Class AB operational amplifier having high gain and low settling time |
| 06/15/2004 | US6750714 Opamp with infinite open loop gain |
| 06/15/2004 | US6750713 Variable gain amplifier |
| 06/15/2004 | US6750712 Method and apparatus for voltage clamping in feedback amplifiers using resistors |
| 06/15/2004 | US6750711 RF power amplifier stability |
| 06/15/2004 | US6750709 Bipolar transistor-based linearizer with programmable gain and phase response system |
| 06/15/2004 | US6750708 Miniaturized buffer amplifier and electronic circuit unit using same |
| 06/15/2004 | US6750707 Multi-carrier RF amplifiers |
| 06/15/2004 | US6750705 Class D amplifier energy control |
| 06/15/2004 | US6750704 Offset compensated differential amplifier |
| 06/15/2004 | US6750703 DC offset canceling circuit applied in a variable gain amplifier |
| 06/15/2004 | US6750702 Limiting amplifier |
| 06/15/2004 | US6750701 Current mirror circuit and current source circuit |
| 06/15/2004 | US6750684 Input circuit buffer supporting a low voltage interface and a general low voltage transistor logic(LVVTL) interface |
| 06/10/2004 | WO2004049569A1 Pwm generator |
| 06/10/2004 | WO2004049562A1 Drive circuit |
| 06/10/2004 | WO2004049561A1 Pulse width-modulated noise shaper |
| 06/10/2004 | WO2004049557A2 High-speed class-ab transconductance stage |
| 06/10/2004 | WO2004049556A2 Direct coupled distributed amplifier |
| 06/10/2004 | WO2004036741B1 Frequency compensation of common-mode feedback loops for differential amplifiers |
| 06/10/2004 | WO2004011950A3 High sensitivity, high resolution detection of signals |
| 06/10/2004 | WO2003017475A9 Method and system for multiple tuner application using a low noise broadband distribution amplifier |
| 06/10/2004 | WO2002097972A3 Power amplifier control |
| 06/10/2004 | US20040111681 Designing methods and circuits for multi-band electronic circuits |
| 06/10/2004 | US20040109512 Linearized switch-based power amplifier |
| 06/10/2004 | US20040109277 Limit circuit |
| 06/10/2004 | US20040109276 System and method for protecting an audio amplifier output stage power transistor |
| 06/10/2004 | US20040108902 High frequency power amplifier electric parts and radio telecommunication system |
| 06/10/2004 | US20040108899 Amplifier having MOS capacitor compensation |
| 06/10/2004 | US20040108897 Audio amplifier |
| 06/10/2004 | US20040108891 Switched capacitor circuit |
| 06/10/2004 | US20040108889 Semiconductor integrated circuit |
| 06/10/2004 | US20040108888 Constant voltage generating circuit |
| 06/10/2004 | US20040108866 Process monitor for monitoring an integrated circuit chip |
| 06/09/2004 | EP1427101A1 Switching amplification apparatus |
| 06/09/2004 | EP1427100A1 Preamplification circuit |
| 06/09/2004 | EP1425852A1 Rf power amplifier transistor quiescent current checking and adjusting |
| 06/09/2004 | EP1425851A1 Broadband amplifier system having improved linearity and minimum loss |
| 06/09/2004 | EP1425850A1 Circuits and methods for compensating switched mode amplifiers |
| 06/09/2004 | EP0932933B1 Multi-stage high efficiency linear power amplifier |
| 06/09/2004 | CN1503591A Front-end module and communication terminal |
| 06/09/2004 | CN1503489A 半导体集成电路设备和无线通信系统 Semiconductor integrated circuit device and wireless communication systems |
| 06/09/2004 | CN1503476A Optical signal receiving circuit and optical signal receiving semciconductor device |
| 06/08/2004 | US6748085 Computer system with a common audio input for its audio circuitry |
| 06/08/2004 | US6747531 Circuit and method for input side impedance matching of a power amplifier in an electronic device |
| 06/08/2004 | US6747517 Power-shifting rf amplifiers |
| 06/08/2004 | US6747515 Circuit for automatic regulation of a differential amplifier's gain |
| 06/08/2004 | US6747514 MOSFET amplifier with dynamically biased cascode output |
| 06/08/2004 | US6747513 High fidelity floating bridge amplifier |
| 06/08/2004 | US6747512 Amplifier and tuner |
| 06/08/2004 | US6747511 Distributed amplifier with pi-configuration analysis and synthesis lines |
| 06/08/2004 | US6747485 Sense amplifier type input receiver with improved clk to Q |
| 06/08/2004 | US6747330 Current mirror circuit with interconnected control electrodies coupled to a bias voltage source |
| 06/08/2004 | US6747307 Combined transistor-capacitor structure in deep sub-micron CMOS for power amplifiers |
| 06/08/2004 | CA2285355C Pulse referenced control method for enhanced power amplification of a pulse modulated signal |
| 06/03/2004 | WO2004047299A1 Current-limiting circuit employing duty cycle control |
| 06/03/2004 | WO2004047288A1 Travelling-wave amplifier |
| 06/03/2004 | WO2004047287A1 Power amplifying apparatus |
| 06/03/2004 | WO2004047286A1 Pulse modulated power converter |
| 06/03/2004 | WO2004004115A3 Circuitry and method to provide a high speed comparator for an input stage of a low-voltage differential signal receiver circuit |
| 06/03/2004 | WO2003090343A3 Power amplifier |
| 06/03/2004 | WO2003034576A3 Method and system for charge pump active gate drive |