| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 06/05/2003 | US20030103166 Method and apparatus for vertical compression and de-compression of progressive video data |
| 06/05/2003 | US20030103029 Offset cancel circuit of voltage follower equipped with operational amplifier |
| 06/05/2003 | US20030102924 Power amplifier module |
| 06/05/2003 | US20030102923 ESD protection circuit for use in RF CMOS IC design |
| 06/05/2003 | US20030102922 Distributed amplifier and differential distributed amplifier |
| 06/05/2003 | US20030102921 High beta output stage for high speed operational amplifier |
| 06/05/2003 | US20030102920 Ultra linear high speed operational amplifier output stage |
| 06/05/2003 | US20030102919 Amplifier circuit with regenerative biasing |
| 06/05/2003 | US20030102918 Push-pull amplifiers |
| 06/05/2003 | US20030102916 Automatically gain controllable linear differential amplifier using variable degeneration resistor |
| 06/05/2003 | US20030102915 Switched-mode power amplifier integrally performing power combining |
| 06/05/2003 | US20030102911 Bipolar transistor-based linearizer with programmable gain and phase response system |
| 06/05/2003 | US20030102910 Differential rf/microwave power amplifier using independent synchronized polar modulators |
| 06/05/2003 | US20030102909 Amplifier circuit with offset compensation |
| 06/05/2003 | US20030102908 Frequency-compensated, multistage amplifier configuration and method for operating a frequency-compensated amplifier configuration |
| 06/05/2003 | US20030102853 Complementary electronic system for lowering electric power consumption |
| 06/05/2003 | US20030102574 Semiconductor device |
| 06/05/2003 | US20030102494 Semiconductor device |
| 06/04/2003 | EP1317063A1 High-frequency amplifier, feed-forward amplifier and distortion compensation amplifier |
| 06/04/2003 | EP1317062A2 Power supply control of cascaded amplifiers in a transmission circuit |
| 06/04/2003 | EP1317061A2 Bipolar transistor amplifying circuit |
| 06/04/2003 | EP1316152A2 Method and apparatus for use in switched capacitor systems |
| 06/04/2003 | EP1316146A2 Circuit for producing low-voltage differential signals |
| 06/04/2003 | EP1316005A1 Current mirror circuit |
| 06/04/2003 | CN2554871Y Audio power amplifier of variable output impendance |
| 06/04/2003 | CN2554870Y Video terminal driver |
| 06/04/2003 | CN1422455A 功率放大器模块 Power Amplifier Module |
| 06/04/2003 | CN1421998A New-type digital audio power amplifier |
| 06/04/2003 | CN1421996A Variable gain differential amplifying circuit and multiplying circuit |
| 06/04/2003 | CN1421927A 半导体器件 Semiconductor devices |
| 06/04/2003 | CN1110892C High gain amplifier with limited putout dynamic range |
| 06/04/2003 | CN1110891C 数字功率放大器 Digital Power Amplifier |
| 06/04/2003 | CN1110888C Voltage-current converter for high frequency application |
| 06/03/2003 | US6573851 Offset compensated comparing amplifier |
| 06/03/2003 | US6573810 Device for transmitting electromagnetic signals across a structure including modules organized for two-for-one redundancy |
| 06/03/2003 | US6573797 High-frequency power amplifier |
| 06/03/2003 | US6573796 Automatic LDMOS biasing with long term hot carrier compensation |
| 06/03/2003 | US6573795 Low quiescent power class AB current mirror circuit |
| 06/03/2003 | US6573794 Operational amplifier |
| 06/03/2003 | US6573790 Wide-bandwidth operational amplifier |
| 06/03/2003 | US6573787 Elimination of noise during power supply switching in an audio amplifier circuit |
| 06/03/2003 | US6573785 Method, apparatus, and system for common mode feedback circuit using switched capacitors |
| 06/03/2003 | US6573784 Low power wide bandwidth programmable gain CDS amplifier/instrumentation amplifier |
| 06/03/2003 | US6573783 Method and apparatus for open-loop input offset adjustment in a differential amplifier |
| 06/03/2003 | US6573779 Duty cycle integrator with tracking common mode feedback control |
| 06/03/2003 | US6573669 Cathode ray tube driver circuit with frequency compensation without providing a leakage path for cathode current |
| 06/03/2003 | US6571598 Calibration circuit for use with a differential input preamplifier in a sensor system |
| 05/30/2003 | WO2003044948A1 Image display apparatus and high voltage driver circuit |
| 05/30/2003 | WO2003044947A1 Power amplifier |
| 05/30/2003 | WO2003044944A1 A new tyre digital audio power amplifier |
| 05/30/2003 | WO2003044942A1 N way phase cancellation power amplifier |
| 05/30/2003 | WO2003044932A2 Switched mode power amplifier |
| 05/30/2003 | WO2003005561A3 Interface circuit for connecting to an output of a frequency converter |
| 05/30/2003 | WO2002050994A3 Linearized class c amplifier with dynamic biasing |
| 05/30/2003 | WO2002045067A9 Switched amplifier drive circuit for liquid crystal displays |
| 05/29/2003 | US20030099307 Differential slicer circuit for data communication |
| 05/29/2003 | US20030098744 Variable gain differential amplifier and multiplication circuit |
| 05/29/2003 | US20030098738 Current generator circuit for high-voltage applications |
| 05/29/2003 | US20030098734 Fully integrated offset compensation feedback circuit |
| 05/29/2003 | US20030098728 Semiconductor device |
| 05/29/2003 | US20030098725 Cmos transconductor with increased dynamic range |
| 05/29/2003 | US20030098724 Receiving circuit |
| 05/29/2003 | US20030098407 Integrated fiber optic receiver power meter |
| 05/28/2003 | EP1315291A1 Wide-band amplifier |
| 05/28/2003 | EP1315290A1 Pseudo-differential amplifier and analog-to-digital converter using the same |
| 05/28/2003 | EP1315289A1 Power amplifier module |
| 05/28/2003 | EP1315287A2 A low noise biasing technique |
| 05/28/2003 | EP1315286A1 Multistage amplifier |
| 05/28/2003 | EP1315172A1 Sampling and hold circuit |
| 05/28/2003 | EP1314256A2 Circuits and methods for reducing interference from switched mode circuits |
| 05/28/2003 | EP1068666B1 Hybrid chireix/doherty amplifiers power waveform synthesis |
| 05/28/2003 | EP1062523B1 Power supply circuit |
| 05/28/2003 | CN1421073A Envelope-tracking amplifier having improved gain, terminal device for mobile communication using same, and method for improving gain relating thereto |
| 05/28/2003 | CN1421069A 天线放大器 Antenna Amplifier |
| 05/28/2003 | CN1420997A Method and apparatus for uniform brightness in displays |
| 05/28/2003 | CN1420627A RF communication amplifier circuit capable of preventing diode protection circuit from generating electromagnetic interference |
| 05/28/2003 | CN1420626A Power amplifier, power amplifying method and radio communication device |
| 05/28/2003 | CN1420625A 可变增益放大器及滤波电路 Variable gain amplifier and filter circuit |
| 05/28/2003 | CN1420624A Crackle suppressing circuit and sound output amplifier |
| 05/28/2003 | CN1110192C Kinescope drive apparatus |
| 05/28/2003 | CN1110129C Multistage variable gain amplifier circuit |
| 05/28/2003 | CN1110128C RF amplifier having improved CTB and cross modulation characteristics |
| 05/28/2003 | CN1110126C Buffering high-frequency tuned amplifier |
| 05/28/2003 | CN1110125C Device and method for compensating phase distorsion |
| 05/27/2003 | US6570777 Half sine wave resonant drive circuit |
| 05/27/2003 | US6570466 Ultra broadband traveling wave divider/combiner |
| 05/27/2003 | US6570451 High-frequency power amplifier |
| 05/27/2003 | US6570450 Efficient AC coupled CMOS RF amplifier |
| 05/27/2003 | US6570449 Operation amplification circuit, constant voltage circuit and reference voltage circuit |
| 05/27/2003 | US6570448 System and method for a startup circuit for a differential CMOS amplifier |
| 05/27/2003 | US6570446 Method and apparatus for improving the performance of electronic devices using cross-degeneration |
| 05/27/2003 | US6570445 Linearizer for microwave amplifier |
| 05/27/2003 | US6570442 Radio frequency signal output module having radio-frequency power amplifier and isolator element |
| 05/27/2003 | CA2241278C A power sharing amplifier system for amplifying multiple input signals with shared power amplifiers |
| 05/22/2003 | WO2003043281A1 Soft-output slicer with differential difference amplifiers for binary signals |
| 05/22/2003 | WO2003043185A1 Power amplifier |
| 05/22/2003 | WO2003043184A1 Time division multiplexed pwm amplifier |
| 05/22/2003 | WO2003043181A2 Class-f amplifier using an lc output filter network |
| 05/22/2003 | US20030095666 Machine for controlling and amplifying a low-level audio signal using a high efficiency class D switching amplifier |
| 05/22/2003 | US20030095453 Read amplifier with a low current consumption differential output stage |